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Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Retrofitting Air Conditioning and Duct Systems in Hot, Dry Climates  

SciTech Connect (OSTI)

This technical report describes CARB's work with Clark County Community Resources Division in Las Vegas, Nevada, to optimize procedures for upgrading cooling systems on existing homes in the area to implement health, safety, and energy improvements. Detailed monitoring of five AC systems showed that three of the five systems met or exceeded air flow rate goals.

Shapiro, C.; Aldrich, R.; Arena, L.

2012-07-01T23:59:59.000Z

2

Retrofitting Inefficient Rooftop Air-Conditioning Units Reduces U.S. Navy Energy Use (Fact Sheet)  

SciTech Connect (OSTI)

As part of the U.S. Navy's overall energy strategy, the National Renewable Energy Laboratory (NREL) partnered with the Naval Facilities Engineering Command (NAVFAC) to demonstrate market-ready energy efficiency measures, renewable energy generation, and energy systems integration. One such technology - retrofitting rooftop air-conditioning units with an advanced rooftop control system - was identified as a promising source for reducing energy use and costs, and can contribute to increasing energy security.

Not Available

2014-04-01T23:59:59.000Z

3

Industrial HVAC Air-to-Air Energy Recovery Retrofit Economics  

E-Print Network [OSTI]

Retrofitting air-to-air energy recovery equipment is relatively simply to design and easy to install. Additionally, HVAC energy recovery is almost risk free when compared to process retrofit. Life cycle cost analysis is the best way to illustrate...

Graham, E. L.

1980-01-01T23:59:59.000Z

4

Air Conditioning  

Science Journals Connector (OSTI)

Air Conditioning ... CHEMISTS and engineers use air conditioning as a valuable tool in more than two hundred industries. ... Air conditioning is a tool with many facets. ...

MARGARET INGELS

1938-02-10T23:59:59.000Z

5

Air Distribution Retrofit Strategies for Affordable Housing  

SciTech Connect (OSTI)

In multifamily and attached buildings, traditional duct sealing methods are often impractical or costly and disruptive because of the difficulty in accessing leakage sites. In this project, two retrofit duct sealing techniques -- manually-applied sealants and injecting a spray sealant, were implemented in several low-rise multi-unit buildings. An analysis on the cost and performance of the two methods are presented. Each method was used in twenty housing units: approximately half of each group of units are single story and the remainder two-story. Results show that duct leakage to the outside was reduced by an average of 59% through the use of manual methods, and by 90% in the units where the injected spray sealant was used. It was found that 73% of the leakage reduction in homes that were treated with injected spray sealant was attributable to the manual sealing done at boots, returns and the air handler. The cost of manually-applying sealant ranged from $275 to $511 per unit and for the injected spray sealant the cost was $700 per unit. Modeling suggests a simple payback of 2.2 years for manual sealing and 4.7 years for the injected spray sealant system. Utility bills were collected for one year before and after the retrofits. Utility bill analysis shows 14% and 16% energy savings using injected spray sealant system and hand sealing procedure respectively in heating season whereas in cooling season, energy savings using injected spray sealant system and hand sealing were both 16%.

Dentz, J.; Conlin, F.; Holloway, P.; Podorson, D.; Varshney, K.

2014-03-01T23:59:59.000Z

6

Compressed Air System Analysis and Retrofit for Energy Savings  

E-Print Network [OSTI]

This case study paper describes energy efficiency improvements to a large sanitary paper products manufacturing facility that underwent a comprehensive compressed air system retrofit. The project was motivated by potential energy savings and better...

Harding, C.; Nutter, D.

2014-01-01T23:59:59.000Z

7

DOE Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings  

Broader source: Energy.gov [DOE]

The Building America Program is hosting a no-cost, webinar-based training on Retrofitting Central Space Conditioning Strategies for Multifamily Buildings. The webinar will focus on improving the...

8

Distribution and Room Air Mixing Risks to Retrofitted Homes  

SciTech Connect (OSTI)

?Energy efficiency upgrades reduce heating and cooling loads on a house. With enough load reduction and if the HVAC system warrants replacement, the HVAC system is often upgraded with a more efficient, lower capacity system that meets the loads of the upgraded house. For a single-story house with ceiling supply air diffusers, ducts are often removed and upgraded. For houses with ducts that are embedded in walls, the cost of demolition precludes the replacement of ducts. The challenge with the use of existing ducts is that the reduced airflow creates a decreased throw at the supply registers, and the supply air and room air do not mix well, leading to potential thermal comfort complaints. This project investigates this retrofit scenario. The issues and solutions discussed here are relevant to all climate zones, with emphasis on climates that require cooling.

Burdick, A.

2014-12-01T23:59:59.000Z

9

Indoor Air Quality and Ventilation in Residential Deep Energy Retrofits  

SciTech Connect (OSTI)

Because airtightening is a significant part of Deep Energy Retrofits (DERs), concerns about ventilation and Indoor Air Quality (IAQ) have emerged. To investigate this, ventilation and IAQ were assessed in 17 non-smoking California Deep Energy Retrofit homes. Inspections and surveys were used to assess household activities and ventilation systems. Pollutant sampling performed in 12 homes included six-day passive samples of nitrogen dioxide (NO2), formaldehyde and air exchange rate (AER); time-resolved data loggers were used to measure particle counts. Half of the homes provided continuous mechanical ventilation. Despite these homes being twice as airtight (3.0 and 7.6 ACH50, respectively), their median AER was indistinguishable from naturally vented homes (0.36 versus 0.37 hr--1). Numerous problems were found with ventilation systems; however, pollutant levels did not reach levels of concern in most homes. Ambient NO2 standards were exceeded in some gas cooking homes that used legacy ranges with standing pilots, and in Passive House-style homes without range hoods exhausted to outside. Cooking exhaust systems were installed and used inconsistently. The majority of homes reported using low-emitting materials, and formaldehyde levels were approximately half those in conventional new CA homes (19.7 versus 36 ?g/m3), with emissions rates nearly 40percent less (12.3 versus 20.6 ?g/m2/hr.). Presence of air filtration systems led to lower indoor particle number concentrations (PN>0.5: 8.80E+06 PN/m3 versus 2.99E+06; PN>2.5: 5.46E+0.5 PN/m3 versus 2.59E+05). The results indicate that DERs can provide adequate ventilation and IAQ, and that DERs should prioritize source control, particle filtration and well-designed local exhaust systems, while still providing adequate continuous ventilation.

Less, Brennan; Walker, Iain

2014-06-01T23:59:59.000Z

10

Alternative Refrigerants for Building Air Conditioning  

E-Print Network [OSTI]

The majority of building air conditioning has traditionally been achieved with vapor compression technology using CFC-I I or HCFC-22 as refrigerant fluids. CFC-11 is being successfully replaced by HCFC-123 (retrofit or new equipment) or by HFC- 134a...

Bivens, D. B.

1996-01-01T23:59:59.000Z

11

Variable Speed Fan Retrofits for Computer Room Air Conditioners  

Broader source: Energy.gov (indexed) [DOE]

Variable-Speed Fan Variable-Speed Fan Retrofits for Computer-Room Air Conditioners Prepared for the U.S. Department of Energy Federal Energy Management Program Technology Case Study Bulletin By Lawrence Berkeley National Laboratory Steve Greenberg September 2013 2 Contacts Steve Greenberg Lawrence Berkeley National Laboratory One Cyclotron Road, 90R3111 Berkeley, California 94720 (510) 486-6971 segreenberg@lbl.gov For more information on FEMP, please contact: Will Lintner, P.E., CEM Federal Energy Management Program U.S. Department of Energy 1000 Independence Ave. S.W. Washington, D. C. 20585-0121 (202) 586-3120 william.lintner@ee.doe.gov 3 Acknowledgements EPRI: Dennis Symanski, Brian Fortenbery Synapsense: Garret Smith, Patricia Nealon Vigilent: Corinne Vita

12

Text-Alternative Version of Building America Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings  

Broader source: Energy.gov [DOE]

A text-alternative version of the Building America webinar, Retrofitting Central Space Conditioning Strategies for Multifamily Buildings held on July 16, 2014.

13

Air Leakage of US Homes: Regression Analysis and Improvements from Retrofit  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Leakage of US Homes: Regression Analysis and Improvements from Retrofit Leakage of US Homes: Regression Analysis and Improvements from Retrofit Title Air Leakage of US Homes: Regression Analysis and Improvements from Retrofit Publication Type Report LBNL Report Number LBNL-5966E Year of Publication 2012 Authors Chan, Wanyu R., Jeffrey Joh, and Max H. Sherman Date Published 08/2012 Keywords air infiltration, blower door, fan pressurization measurements, retrofit, weatherization Abstract LBNL Residential Diagnostics Database (ResDB) contains blower door measurements and other diagnostic test results of homes in United States. Of these, approximately 134,000 single-family detached homes have sufficient information for the analysis of air leakage in relation to a number of housing characteristics. We performed regression analysis to consider the correlation between normalized leakage and a number of explanatory variables: IECC climate zone, floor area, height, year built, foundation type, duct location, and other characteristics. The regression model explains 68% of the observed variability in normalized leakage. ResDB also contains the before and after retrofit air leakage measurements of approximately 23,000 homes that participated in weatherization assistant programs (WAPs) or residential energy efficiency programs. The two types of programs achieve rather similar reductions in normalized leakage: 30% for WAPs and 20% for other energy programs.

14

Building America Best Practices Series, Volume 10: Retrofit Techniques and Technologies: Air Sealing  

SciTech Connect (OSTI)

This report was prepared by PNNL for the U.S. Department of Energy Building America Program. The report provides information to home owners who want to make their existing homes more energy efficient by sealing leaks in the building envelope (ceiling, walls, and floors) that let in drafts and let conditioned air escape. The report provides descriptions of 19 key areas of the home where air sealing can improve home performance and energy efficiency. The report includes suggestions on how to find a qualified weatherization or home performance contractor, what to expect in a home energy audit, opportune times for performing air sealing, and what safety and health concerns to be aware of. The report describes some basic building science concepts and topics related to air sealing including ventilation, diagnostic tools, and code requirements. The report will be available for free download from the DOE Building America website. It is a suitable consumer education tool for home performance and weatherization contractors to share with customers to describe the process and value of home energy retrofits.

Baechler, Michael C.; Gilbride, Theresa L.; Hefty, Marye G.; Cole, Pamala C.; Williamson, Jennifer L.; Love, Pat M.

2010-04-12T23:59:59.000Z

15

Simplified Space Conditioning in Low-Load Homes: Results from the Fresno, California, Retrofit Unoccupied Test House  

SciTech Connect (OSTI)

Field testing was performed in a retrofit unoccupied test house in Fresno, California. Three air-based heating, ventilation, and air conditioning (HVAC) distribution systems -- a typical airflow ducted system to the bedrooms, a low airflow ducted system to the bedrooms, and a system with no ductwork to the bedrooms -- were evaluated during heating, cooling, and midseason conditions. The relative ability of each of the three systems was assessed with respect to relevant Air Conditioning Contractors of America (ACCA) and ASHRAE standards for house temperature uniformity and stability, respectively. Computational fluid dynamics (CFD) modeling also was performed and refined based on comparison to field test results to determine the air flow rate into the bedrooms of over-door and bottom-of-door air transfer grilles.

Stecher, D.; Poerschke, A.

2014-02-01T23:59:59.000Z

16

High Energy Efficiency Air Conditioning  

SciTech Connect (OSTI)

This project determined the performance of a new high efficiency refrigerant, Ikon B, in a residential air conditioner designed to use R-22. The refrigerant R-22, used in residential and small commercial air conditioners, is being phased out of production in developed countries beginning this year because of concerns regarding its ozone depletion potential. Although a replacement refrigerant, R-410A, is available, it operates at much higher pressure than R-22 and requires new equipment. R-22 air conditioners will continue to be in use for many years to come. Air conditioning is a large part of expensive summer peak power use in many parts of the U.S. Previous testing and computer simulations of Ikon B indicated that it would have 20 - 25% higher coefficient of performance (COP, the amount of cooling obtained per energy used) than R-22 in an air-cooled air conditioner. In this project, a typical new R-22 residential air conditioner was obtained, installed in a large environmental chamber, instrumented, and run both with its original charge of R-22 and then with Ikon B. In the environmental chamber, controlled temperature and humidity could be maintained to obtain repeatable and comparable energy use results. Tests with Ikon B included runs with and without a power controller, and an extended run for several months with subsequent analyses to check compatibility of Ikon B with the air conditioner materials and lubricant. Baseline energy use of the air conditioner with its original R-22 charge was measured at 90 deg F and 100 deg F. After changeover to Ikon B and a larger expansion orifice, energy use was measured at 90 deg F and 100 deg F. Ikon B proved to have about 19% higher COP at 90 deg F and about 26% higher COP at 100 deg F versus R-22. Ikon B had about 20% lower cooling capacity at 90 deg F and about 17% lower cooling capacity at 100 deg F versus R-22 in this system. All results over multiple runs were within 1% relative standard deviation (RSD). All of these values agree well with previous results and computer simulations of Ikon B performance versus R-22. The lower cooling capacity of Ikon B is not a concern unless a particular air conditioner is near its maximum cooling capacity in application. Typically, oversized A/C systems are installed by contractors to cover contingencies. In the extended run with Ikon B, which lasted about 4.5 months at 100 deg F ambient temperature and 68% compressor on time, the air conditioner performed well with no significant loss of energy efficiency. Post-run analysis of the refrigerant, compressor lubricant oil, compressor, compressor outlet tubing, and the filter/dryer showed minor effects but nothing that was considered significant. The project was very successful. All objectives were achieved, and the performance of Ikon B indicates that it can easily be retrofitted into R-22 air conditioners to give 15 - 20% energy savings and a 1 - 3 year payback of retrofit costs depending on location and use. Ikon B has the potential to be a successful commercial product.

Edward McCullough; Patrick Dhooge; Jonathan Nimitz

2003-12-31T23:59:59.000Z

17

Solar Heating and Air Conditioning  

Science Journals Connector (OSTI)

...given of the status of solar fired air conditioning...to an approach to cool storage in solar air conditioning systems...an assessment of cool storage for reducing peak electrical...rolling cylinder thermal energy storage device for compact...

1980-01-01T23:59:59.000Z

18

Building America Webinar: High Performance Space Conditioning...  

Energy Savers [EERE]

Strategies for Affordable Housing Building America Webinar: High Performance Space Conditioning Systems, Part II - Air Distribution Retrofit Strategies for Affordable...

19

Retrofitting of Conditioning Systems for Existing Small Commercial Buildings - Analysis and Design of Liquid Desiccant - Vapor Compression Hybrid  

E-Print Network [OSTI]

RETROFITTING OF CONDITIONINC SYSTEMS FOR EXISTING SMALL COMMERCIAL BUILDINGS - ANALYSIS AND DESIGN OF LIQUID DESICCANT - VAPOR COMPRESSION HYBRID Ozer A. Arnas Professor Department of Mechanical Engineering Louisiana State University Baton... is combined with air heated passively in an attic to regenerate the desiccant. A prototype open-cycle, liquid desiccant dehumidification system has been adapted to the existing mechanical system of the building (Figure 1). Guidelines for retrofitting...

Arnas, O. A.; McQueen, T. M.

1984-01-01T23:59:59.000Z

20

Retrofit of existing 400 horsepower air compressor motor with steam turbine  

SciTech Connect (OSTI)

This paper is on the completion of a retrofit project to replace an existing 400 Horsepower air compressor motor with a steam turbine. The discussion includes visuals to show the process involved in carrying out this project. There will be in three parts. The first part of the presentation will cover the planning and construction. Planning included defining a scope, collecting data to support this scope, determining engineering feasibility, and calculating an economic payback. Construction will include the preparations for the retrofit including details of upgrades to existing systems and components, and installation of new systems and components. This will be followed by details on the actual removal of the motor, installation of the turbine, and the revision of the controls. Startup of the air compressor on steam is then discussed including necessary preparation of steam systems. Next to be presented will be some of the problems and their solutions experienced during this project. Specifically discussed will be regulatory concerns, noise of operation, insurance, and fluctuations in plant process steam demand. The conclusion of the presentation will focus on present operating status, savings demonstrated, and maintenance required.

Sanders, S.F.

1997-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Building America Best Practices Series, Vol. 10 - Retrofit Techniques & Technologies: Air Sealing, A Guide for Contractors to Share with Homeowners  

Broader source: Energy.gov (indexed) [DOE]

TECHNOLOGIES PROGRAM TECHNOLOGIES PROGRAM R Retrofit Techniques & Technologies: Air Sealing A Guide for Contractors to Share with Homeowners PREPARED BY Pacific Northwest National Laboratory & Oak Ridge National Laboratory April 12, 2010 April 12, 2010 * PNNL-19284 BUILDING AMERICA BEST PRACTICES SERIES VOLUME 10. BuiLDiNG AmERiCA BEST PRACTiCES SERiES Retrofit Techniques and Technologies: Air Sealing

22

Air Conditioning | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Conditioning Conditioning Air Conditioning July 1, 2012 - 6:28pm Addthis Air conditioners cost U.S. homeowners more than $11 billion each year, and regular maintenance can keep your air conditioner running efficiently. | Photo courtesy of ©iStockphoto/JaniceRichard Air conditioners cost U.S. homeowners more than $11 billion each year, and regular maintenance can keep your air conditioner running efficiently. | Photo courtesy of ©iStockphoto/JaniceRichard How does it work? An air conditioner uses energy -- usually electricity -- to transfer heat from the interior of your home to the relatively warm outside environment. Two-thirds of all homes in the United States have air conditioners. Air conditioners use about 5% of all the electricity produced in the United States, at an annual cost of more than $11 billion to homeowners. As a

23

The effect of an enclosure retrofit on air leakage rates for a multi-unit residential case-study building  

Science Journals Connector (OSTI)

Abstract This paper presents a relatively new, simple and robust, method for air leakage testing. A thirteen-story multi-unit residential building was tested for air leakage before and after an enclosure retrofit. The building suites had a pre-retrofit NLA50 average of 6.77cm2/m2 and an average post-retrofit NLA50 of 2.82cm2/m2a 58% betterment. The effect of the retrofit on air leakage rates was assessed and compared to other multi-unit residential buildings across Canada and USA. The case study building was significantly tighter than other multi-unit residential buildings included in published studies. Recommendations were made for field-testing procedures in order to maximize the potential for accurate measured flow characteristics. Field-testing for air-tightness needs to be standardized in order for useful comparative results to be generated in order to inform future research and operational considerations for the multi-unit residential building stock across North America.

Robin Urquhart; Russell Richman; Graham Finch

2015-01-01T23:59:59.000Z

24

Natural Air-Conditioning Systems  

Science Journals Connector (OSTI)

Recent research in summer air conditioning utilizing natural sources of coolness* are discussed. These systems are classified according to the sources of coolness, the modes of heat transfer and airflow, and t...

Mehdi N. Bahadori

1986-01-01T23:59:59.000Z

25

Building Retrofits for Increased Protection Against Airborne  

E-Print Network [OSTI]

. Building envelope air seal air purging or building envelope airtightening. The guidance section describes each retrofit based gaseous air cleaning, ultraviolet germicidal irradiation, photocatalytic oxidative air cleaning

26

ADVANCED FLUE GAS CONDITIONING AS A RETROFIT UPGRADE TO ENHANCE PM COLLECTION FROM COAL-FIRED ELECTRIC UTILITY BOILERS  

SciTech Connect (OSTI)

The U.S. Department of Energy and ADA Environmental Solutions are engaged in a project to develop commercial flue gas conditioning additives. The objective is to develop conditioning agents that can help improve particulate control performance of smaller or under-sized electrostatic precipitators on utility coal-fired boilers. The new chemicals will be used to control both the electrical resistivity and the adhesion or cohesivity of the fly ash. There is a need to provide cost-effective and safer alternatives to traditional flue gas conditioning with SO{sub 3} and ammonia. During this reporting quarter, performance testing of flue gas conditioning was completed at the PacifiCorp Jim Bridger Power Plant. The product tested, ADA-43, was a combination resistivity modifier with cohesivity polymers. The product was effective as a flue gas conditioner. However, ongoing problems with in-duct deposition resulting from the flue gas conditioning were not entirely resolved. Primarily these problems were the result of difficulties encountered with retrofit of an existing spray humidification system. Eventually it proved necessary to replace all of the original injection lances and to manually bypass the PLC-based air/liquid feed control. This yielded substantial improvement in spray atomization and system reliability. However, the plant opted not to install a permanent system. Also in this quarter, preparations continued for a test of the cohesivity additives at the American Electric Power Conesville Plant, Unit 3. This plant fires a bituminous coal and has opacity and particulate emissions performance issues related to fly ash re-entrainment. Ammonia conditioning is employed here on one unit, but there is interest in liquid cohesivity additives as a safer alternative.

Kenneth E. Baldrey

2002-07-01T23:59:59.000Z

27

Building America Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings- Steam Systems, Retrofit Measure Packages, Hydronic Systems  

Broader source: Energy.gov [DOE]

This presentation is included in the July 16, 2014, Building America webinar, and provides information about best practices, costs, and savings associated with optimizing steam and hydronic systems through increased main line air venting, replacing radiator vents, improving circulation pump efficiency, and upgrading boiler control systems.

28

Central Air Conditioning | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Central Air Conditioning Central Air Conditioning Central Air Conditioning May 30, 2012 - 8:01pm Addthis Central air conditioners circulate cool air through a system of supply and return ducts. | Photo courtesy of ©iStockphoto/DonNichols. Central air conditioners circulate cool air through a system of supply and return ducts. | Photo courtesy of ©iStockphoto/DonNichols. What does this mean for me? Central air conditioning systems are thermostatically controlled and convenient to use. Central air conditioning systems must be installed properly to operate efficiently. Central air conditioning systems can share ductwork with your heating system. Central air conditioners circulate cool air through a system of supply and return ducts. Supply ducts and registers (i.e., openings in the walls,

29

A New Approach to Industrial Air Conditioning  

E-Print Network [OSTI]

-dryer Systems Division, has marketed industrial drying machinery. These heat reactivated dryers can handle latent loads in industrial air conditioning systems. Through waste heat conservation, air conditioning costs can be reduced 25 to 50%, with applications...

Gravenstreter, T.

1982-01-01T23:59:59.000Z

30

SciTech Connect: Sunnyvale Marine Climate Deep Retrofit  

Office of Scientific and Technical Information (OSTI)

AND UTILIZATION RESIDENTIAL; RESIDENTIAL BUILDINGS; ARBI; BUILDING AMERICA; MARINE CLIMATE; RETROFIT; PASSIVE HOUSE; HVAC; MONITORING; INDOOR AIR QUALITY; DEEP RETROFIT; Buildings...

31

Air Leakage of US Homes: Regression Analysis and Improvements from Retrofit  

E-Print Network [OSTI]

Indoor Air Quality in New Homes. California Air Resourcesprograms, likely because WAP homes were more leaky pre-Air Leakage of US Homes: Regression Analysis and

Chan, Wanyu R.

2014-01-01T23:59:59.000Z

32

Retrofit Ventilation Strategies in Multifamily Buildings Webinar  

Broader source: Energy.gov (indexed) [DOE]

Foundation Retrofits Foundation Retrofits Building America Webinar November 30, 2011 Kohta Ueno Hybrid Foundation Retrofits 2 Background Hybrid Foundation Retrofits 3 Background  Space conditioning energy use for basements  Known moisture-safe solutions (previous research)  Persistent bulk water (leakage) issues  Retrofits of existing foundations  Especially uneven wall (rubble stone) foundations  "Hybrid" insulation and bulk water control assemblies Hybrid Foundation Retrofits 4 Foundations w. bulk water issues  Severe and rapid damage to interior insulation and finishes due to bulk water intrusion Hybrid Foundation Retrofits 5 Insulation Location Choices * Retrofits: interior insulation is often the only

33

Air-Conditioning Basics | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Air-Conditioning Basics Air-Conditioning Basics Air-Conditioning Basics August 16, 2013 - 1:59pm Addthis Air conditioning is one of the most common ways to cool homes and buildings. How Air Conditioners Work Air conditioners employ the same operating principles and basic components as refrigerators. Refrigerators use energy (usually electricity) to transfer heat from the cool interior of the refrigerator to the relatively warm surroundings; likewise, an air conditioner uses energy to transfer heat from the interior space to the relatively warm outside environment. An air conditioner uses a cold indoor coil called the evaporator. The condenser, a hot outdoor coil, releases the collected heat outside. The evaporator and condenser coils are serpentine tubing surrounded by aluminum fins. This tubing is usually made of copper.

34

Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning |  

Broader source: Energy.gov (indexed) [DOE]

Desiccant Enhanced Evaporative Air Conditioning Desiccant Enhanced Evaporative Air Conditioning Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning May 29, 2012 - 5:22pm Addthis This breakthrough combines desiccant materials, which remove moisture from the air using heat, and advanced evaporative technologies to develop a cooling unit that uses 90 percent less electricity and up to 80 percent less total energy than traditional air conditioning. This solution, called the desiccant enhanced evaporative air conditioner (DEVAP), also controls humidity more effectively to improve the comfort of people in buildings. View the entire Lab Breakthrough playlist. What are the key facts? Recent materials advances and liquid desiccant advances to design the compact and cost-effective DEVAP system. DEVAP uses 90 percent less electricity and up to 80 percent less

35

Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning |  

Broader source: Energy.gov (indexed) [DOE]

Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning May 29, 2012 - 5:22pm Addthis This breakthrough combines desiccant materials, which remove moisture from the air using heat, and advanced evaporative technologies to develop a cooling unit that uses 90 percent less electricity and up to 80 percent less total energy than traditional air conditioning. This solution, called the desiccant enhanced evaporative air conditioner (DEVAP), also controls humidity more effectively to improve the comfort of people in buildings. View the entire Lab Breakthrough playlist. What are the key facts? Recent materials advances and liquid desiccant advances to design the compact and cost-effective DEVAP system.

36

Heating, Ventilation and Air Conditioning Efficiency  

Broader source: Energy.gov (indexed) [DOE]

Presented By: WALTER E. JOHNSTON, PE Presented By: WALTER E. JOHNSTON, PE CEM, CEA, CLEP, CDSM, CPE Air Conditioning (HVAC) system is to provide and maintain a comfortable environment within a building for the occupants or for the process being conducted Many HVAC systems were not designed with energy efficiency as one of the design factors 3 Air Air is the major conductor of heat. Lack of heat = air conditioning OR 4 Btu - Amount of heat required to raise one pound of water 1 F = 0.252 KgCal 1 Pound of Water = About 1 Pint of Water ~ 1 Large Glass 1 Kitchen Match Basics of Air Conditioning = 1 Btu 5 = 6 Low Cost Cooling Unit 7 8 Typical Design Conditions 75 degrees F temperature 50% relative humidity 30 - 50 FPM air movement

37

Measured Effects of Retrofits - A Refrigerant Oil Additive and a Condenser Spray Device - On the Cooling Performance of a Heat Pump  

E-Print Network [OSTI]

A 15-year old, 3-ton single package air-to-air heat pump was tested in laboratory environmental chambers simulating indoor and outdoor conditions. After documenting initial performance, the unit was retrofitted with a prototype condenser water...

Levins, W. P.; Sand, J. R.; Baxter, V. D.; Linkous, R. S.

1996-01-01T23:59:59.000Z

38

Air Conditioning Heating and Refrigeration Institute Comment  

Broader source: Energy.gov [DOE]

These comments are submitted by the Air-Conditioning, Heating, and Refrigeration Institute (AHRI) in response to the U.S. Department of Energys (DOE) notice in the July 3, 2014 Federal Register...

39

Alternatives to Electric Air Conditioning Systems  

E-Print Network [OSTI]

The rapid escalation of electricity prices has created an opportunity to re-introduce gas-fired air conditioning systems to the commercial building market. In 1985 Gas Research Institute initiated a program to develop an advanced gas engine...

Lindsay, B. B.; Koplow, M. D.

1988-01-01T23:59:59.000Z

40

Changing patterns of air conditioning in Japan  

Science Journals Connector (OSTI)

Japanese air conditioning patterns have changed significantly over the past 30 years. The changes can be linked to increasing affluence and the consequent changes Japanese life patterns, but also to changes in...

Harold Wilhite; Hidetoshi Nakagami

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Indoor environmental quality benefits of apartment energy retrofits  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Indoor environmental quality benefits of apartment energy retrofits Indoor environmental quality benefits of apartment energy retrofits Title Indoor environmental quality benefits of apartment energy retrofits Publication Type Journal Article LBNL Report Number LBNL-6373E Year of Publication 2013 Authors Noris, Federico, Gary Adamkiewicz, William W. Delp, Toshifumi Hotchi, Marion L. Russell, Brett C. Singer, Michael Spears, Kimberly Vermeer, and William J. Fisk Journal Building Environment Volume 68 Pagination 170-178 Date Published 10/2013 Keywords Apartments; Energy; Indoor environmental quality; Retrofit; Selection Abstract Sixteen apartments serving low-income populations in three buildings were retrofit with the goal of simultaneously reducing energy consumption and improving indoor environmental quality (IEQ). Retrofit measures varied among apartments and included, among others, envelope sealing, installation of continuous mechanical ventilation systems, upgrading bathroom fans and range hoods, attic insulation, replacement of heating and cooling systems, and adding wall-mounted particle air cleaners. IEQ parameters were measured, generally for two one-week periods before and after the retrofits. The measurements indicate an overall improvement in IEQ conditions after the retrofits. Comfort conditions, bathroom humidity, and concentrations of carbon dioxide, acetaldehyde, volatile organic compounds, and particles generally improved. Formaldehyde and nitrogen dioxide levels decreased in the building with the highest concentrations, were unchanged in a second building, and increased in a third building. IEQ parameters other than particles improved more in apartments with continuous mechanical ventilation systems installed. In general, but not consistently, larger percent increases in air exchange rates were associated with larger percent decreases in indoor levels of the pollutants that primarily come from indoor sources.

42

Energy and Indoor Environmental Quality Retrofits in Low-Income  

E-Print Network [OSTI]

Energy and Indoor Environmental Quality Retrofits in Low-Income Apartments ENVIRONMENTAL ENERGY to save energy. The major elements influenced by this project: people, energy/air quality and apartments save energy and improve indoor environmental quality conditions. Project Description The broad goals

43

Energy Impacts of Oversized Residential Air Conditioners -- Simulation Study of Retrofit Sequence Impacts  

SciTech Connect (OSTI)

This research addresses the question of what are the energy consequences for oversizing of an air conditioner in a home. Conventional wisdom holds that oversizing the AC results in significant energy penalties. However, the reason for this was shown to be due to crankcase heaters and not due to cycling performance of the AC, and is only valid for a particular set of assumptions. Adding or removing individual characteristics, such as ducts or crankcase heaters, can have measurable impacts on energy use. However, with all other home characteristics held constant, oversizing the AC generally has a small effect on cooling energy use, even if the cycling performance of the unit is poor. The relevant aspects of air conditioner modeling are discussed to illustrate the effects of the cycling loss coefficient, Cd, capacity, climate, ducts and parasitic losses such as crankcase heaters. A case study of a typical 1960's vintage home demonstrates results in the context of whole building simulations using EnergyPlus.

Booten, C.; Christensen, C.; Winkler, J.

2014-11-01T23:59:59.000Z

44

Building America Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings- Introduction  

Broader source: Energy.gov [DOE]

This Building America webinar was held on July 16, 2014, and provided information about mproving the performance of central space conditioning systems in multifamily buildings.

45

Building America Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings  

Broader source: Energy.gov [DOE]

The webinar focused on improving the performance of central space conditioning systems in multifamily buildings, including hydronic heating strategies and the evaluation of thermostatically controlled radiator valves (TRVs).

46

Roswell International Air Center Airport (ROW) Pavement Condition and Analysis  

E-Print Network [OSTI]

Roswell International Air Center Airport (ROW) Pavement Condition and Analysis Submitted to: Jane M ................................................1. Conditions at Roswell International Air Center (ROW) 4 .................................Figure 1. Geographic Location of Roswell International Air Center (ROW) 4 ..............................Table 1

Cal, Mark P.

47

Seawater Air Conditioning for Downtown Engineering Project Manager  

E-Print Network [OSTI]

Seawater Air Conditioning for Downtown Honolulu Scott Higa Engineering Project Manager Honolulu Seawater Air Conditioning, LLC Abstract As a tropical island state, Hawaii has a year-round demand for air conditioning. Conventional air conditioning systems are energy intensive and represent close to 50 percent

Frandsen, Jannette B.

48

Building America Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings  

Broader source: Energy.gov [DOE]

This webinar will focus on improving the performance of central space conditioning systems in multifamily buildings. Presenters will discuss hydronic heating strategies and the evaluation of thermostatically controlled radiator valves (TRVs).

49

Section 38 - HVAC (Heating, Ventilation, Air Conditioning)  

Science Journals Connector (OSTI)

The term HVAC is an acronym for Heating, Ventilation (and) Air Conditioning, the industry term for any of various efforts to control conditions in a building or other enclosed area to improve comfort and efficiency. A closely related section is Refrigeration, which follows this one. Some contemporary HVAC techniques have ancient roots. Early forms of central heating and solar home heating were in use in Rome in the first century A.D. The earliest use of glass in windows (as opposed to a covering of wood, cloth, or hide, or simply an opening) is also attributed to the Romans at this same time. The first known use of solar-oriented building design in North America dates back to about the year 1050; i.e., the cliff dwellings built by the Anasazi (Ancient Pueblo) people of the Colorado Plateau area. Geothermal district heating was employed as early as the 1300s, in the Auvergne region of southern France. The foundation for modern central heating was established in the 1700s, first in England and then in France. The 1800s saw significant advances in the use of water heaters, especially the first automatic storage water heater (Edwin Ruud, 1889) and the first commercial solar water heater (Clarence Kemp, 1891). In comparison with heating, cooling technology was late in developing. The first successful method of producing ice occurred in 1851, and it was not until 1902 that Willis Haviland Carrier designed the first industrial air-conditioning system. His Carrier Air Conditioning Corporation would go on to develop air-conditioning systems for stores and theaters (1924) and for residential buildings (1928). Carrier remains the global leader in air conditioner production. The first air-conditioned automobile was produced by Packard in 1939. Recent entries in this section emphasize the use of alternative energy sources in heating and cooling, such as solar, photovoltaic, geothermal, and fuel cells. These advances include the ground-source heat pump, the Trombe wall, the heat pipe, and the PV/thermal hybrid system.

Cutler J. Cleveland; Christopher Morris

2014-01-01T23:59:59.000Z

50

Seminar 14 - Desiccant Enhanced Air Conditioning: Desiccant Enhanced Evaporative Air Conditioning (Presentation)  

SciTech Connect (OSTI)

This presentation explains how liquid desiccant based coupled with an indirect evaporative cooler can efficiently produce cool, dry air, and how a liquid desiccant membrane air conditioner can efficiently provide cooling and dehumidification without the carryover problems of previous generations of liquid desiccant systems. It provides an overview to a liquid desiccant DX air conditioner that can efficiently provide cooling and dehumidification to high latent loads without the need for reheat, explains how liquid desiccant cooling and dehumidification systems can outperform vapor compression based air conditioning systems in hot and humid climates, explains how liquid desiccant cooling and dehumidification systems work, and describes a refrigerant free liquid desiccant based cooling system.

Kozubal, E.

2013-02-01T23:59:59.000Z

51

Innovative Systems for Solar Air Conditioning of Buildings  

E-Print Network [OSTI]

Solar air conditioning is an attractive technology to achieve comfortable room conditions, especially in hot and sunny climates. In particular air conditioning systems based on sorption technologies offer several advantages as they can be designed...

Kessling, W.; Peltzer, M.

2004-01-01T23:59:59.000Z

52

Alternative non-CFC mobile air conditioning  

SciTech Connect (OSTI)

Concern about the destruction of the global environment by chlorofluorocarbon (CFC) fluids has become an impetus in the search for alternative, non-CFC refrigerants and cooling methods for mobile air conditioning (MAC). While some alternative refrigerants have been identified, they are not considered a lasting solution because of their high global warming potential, which could result in their eventual phaseout. In view of this dilemma, environmentally acceptable alternative cooling methods have become important. This report, therefore, is aimed mainly at the study of alternative automotive cooling methodologies, although it briefly discusses the current status of alternative refrigerants. The alternative MACs can be divided into work-actuated and heat-actuated systems. Work-actuated systems include conventional MAC, reversed Brayton air cycle, rotary vane compressor air cycle, Stirling cycle, thermoelectric (TE) cooling, etc. Heat-actuated MACs include metal hydride cooling, adsorption cooling, ejector cooling, absorption cycle, etc. While we are better experienced with some work-actuated cycle systems, heat-actuated cycle systems have a high potential for energy savings with possible waste heat applications. In this study, each altemative cooling method is discussed for its advantages and its limits.

Mei, V.C.; Chen, F.C.; Kyle, D.M.

1992-09-01T23:59:59.000Z

53

Energy Conservation of Air Conditioning Systems in Large Public Buildings  

E-Print Network [OSTI]

with the heating characteristics of the exterior -protected construction, the set value of the temperature of the air-conditioning, the lectotype of the Central air-conditioning system, the regulation and the modification of the transmission and distribution system...

Liu, P.; Li, D.

2006-01-01T23:59:59.000Z

54

Influence of air conditioning management on heat island in Paris air street temperatures  

E-Print Network [OSTI]

Influence of air conditioning management on heat island in Paris air street temperatures Brice 2012 Available online 13 March 2012 Keywords: Air conditioning Heat island mitigation Urban heat island killer'', is exacerbated in urban areas owing to the heat island effect. Air conditioning (A/C) is a key

Ribes, Aurélien

55

STATE OF CALIFORNIA ICE STORAGE AIR CONDITIONING (ISAC) UNITS  

E-Print Network [OSTI]

cooling with the compressor). Yes No #12;STATE OF CALIFORNIA ICE STORAGE AIR CONDITIONING (ISAC) UNITS CECSTATE OF CALIFORNIA ICE STORAGE AIR CONDITIONING (ISAC) UNITS CEC-CF-6R-MECH-08 (Revised 08/09) CALIFORNIA ENERGY COMMISSION INSTALLATION CERTIFICATE CF-6R-MECH-08 Ice Storage Air Conditioning (ISAC) Units

56

Simulation- Assisted Audit of an Air Conditioned Office Building  

E-Print Network [OSTI]

Conference for Enhanced Building Operations, Berlin, Germany, October 20-22, 2008 performances of the installation. Finally, some significant retrofit opportunities are proposed. BUILDING DESCRIPTION Building design The considered building is an existing... Conference for Enhanced Building Operations, Berlin, Germany, October 20-22, 2008 In nominal heating conditions (outdoor : -10?C/RH 90%; indoor : 20?C/RH50%), with ?t = 30 K, this gives a sensible power demand of: g1843g4662g3046,g3041g3042g3040 =g343623...

Bertagnolio, S.; Lebrun, J.; Hannay, J.; Silva, C. A.

57

Group Home Energy Efficiency Retrofit for 30% Energy Savings...  

Energy Savers [EERE]

measures identi- fied and targeted prior to the retrofit. A lesson learned was that scheduling air sealing measures (and other measures expected to have a high return on...

58

Building America Best Practices Series, Vol. 10- Retrofit Techniques & Technologies: Air Sealing, A Guide for Contractors to Share with Homeowners  

Broader source: Energy.gov [DOE]

This guide provides information to contractors and homeowners to identify ways to seal unwanted air leaks in homes, while ensuring healthy levels of ventilation and avoiding indoor air pollution.

59

Requirements for Determining Refrigerant Charge Residential Air Conditioning Measures  

E-Print Network [OSTI]

Requirements for Determining Refrigerant Charge Residential Air Conditioning Measures Improved Refrigerant Charge Purpose Component packages require in some climate zones that split system air refrigerant charge. For the performance method, the proposed design is modeled with less efficiency

60

Using Modelica for Physical Modeling of Air-Conditioning Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Using Modelica for Physical Modeling of Air-Conditioning Systems Using Modelica for Physical Modeling of Air-Conditioning Systems Speaker(s): Jonas Eborn Date: August 23, 2007 - 12:00pm Location: 90-4133 Seminar Host/Point of Contact: Michael Wetter The Air Conditioning library is a commercial Modelica library for the steady-state and transient simulation of air conditioning systems using both compact micro-channel heat exchangers as well as fin-and-tube type heat exchangers. Currently it is mostly used by automotive OEMs and suppliers that need high-accuracy system level models to evaluate energy efficiency of systems developed under the pressure of reduced design cycle times. The library also has applications in other areas, including aircraft cooling systems and residential air-conditioning. The Air Conditioning library contains published correlations for heat and mass transfer and

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

New Method Gives Precise Control in Air Conditioning  

Science Journals Connector (OSTI)

The Niagara "Controlled Humidity Method" is a new system of air conditioning giving complete control of temperature and relative humidity, holding constant conditions or varying them at the will of the user. ... A condition of 15 grains o f moisture per pound of air at 85 dcg. ...

1950-01-09T23:59:59.000Z

62

New Method Gives Precise Control in Air Conditioning  

Science Journals Connector (OSTI)

The Niagara "Controlled Humidity Method" is a new system of air conditioning giving complete control of temperature and relative humidity, holding constant conditions or varying them at the will of the user. ... A condition of 15 grains of moisture per pound of air at 85 deg. ...

1950-02-13T23:59:59.000Z

63

Building Energy Model Development for Retrofit Homes  

SciTech Connect (OSTI)

Based on previous research conducted by Pacific Northwest National Laboratory and Florida Solar Energy Center providing technical assistance to implement 22 deep energy retrofits across the nation, 6 homes were selected in Florida and Texas for detailed post-retrofit energy modeling to assess realized energy savings (Chandra et al, 2012). However, assessing realized savings can be difficult for some homes where pre-retrofit occupancy and energy performance are unknown. Initially, savings had been estimated using a HERS Index comparison for these homes. However, this does not account for confounding factors such as occupancy and weather. This research addresses a method to more reliably assess energy savings achieved in deep energy retrofits for which pre-retrofit utility bills or occupancy information in not available. A metered home, Riverdale, was selected as a test case for development of a modeling procedure to account occupancy and weather factors, potentially creating more accurate estimates of energy savings. This true up procedure was developed using Energy Gauge USA software and post-retrofit homeowner information and utility bills. The 12 step process adjusts the post-retrofit modeling results to correlate with post-retrofit utility bills and known occupancy information. The trued post retrofit model is then used to estimate pre-retrofit energy consumption by changing the building efficiency characteristics to reflect the pre-retrofit condition, but keeping all weather and occupancy-related factors the same. This creates a pre-retrofit model that is more comparable to the post-retrofit energy use profile and can improve energy savings estimates. For this test case, a home for which pre- and post- retrofit utility bills were available was selected for comparison and assessment of the accuracy of the true up procedure. Based on the current method, this procedure is quite time intensive. However, streamlined processing spreadsheets or incorporation into existing software tools would improve the efficiency of the process. Retrofit activity appears to be gaining market share, and this would be a potentially valuable capability with relevance to marketing, program management, and retrofit success metrics.

Chasar, David; McIlvaine, Janet; Blanchard, Jeremy; Widder, Sarah H.; Baechler, Michael C.

2012-09-30T23:59:59.000Z

64

The investigation of exhaust powered, automotive air cycle air conditioning  

E-Print Network [OSTI]

Pressure Ratio Net Power Test Apparatus Available Turbocompressors Turbine and Compressor Wheels Mounted to Shaft Turbocompressor Mounted. to Exhaust Line Total System Test Rig Full Throttle Performance Curves Subscript 'c' Corrected Results 13 13... an automotive air cycle unit which employed a rotary- vaned compressor. The prototype unit developed. cooling over various engine speeds because of the compressor being a positive displacement type which developed fairly high pressures on the order of 40 psia...

Holley, James Andrew

1978-01-01T23:59:59.000Z

65

Direct Digital Control in Air Conditioning Systems for Energy Efficiency  

E-Print Network [OSTI]

the function and the level of the building, but also save energy. At present, air-conditioning design in internal commercial buildings is becoming more complex and enormous. The proportion of air conditioning systems in the whole building is getting larger...

Liu, W.; Ye, A.; Li, D.

2006-01-01T23:59:59.000Z

66

Retrofitting Doors on Open Refrigerated Cases  

Broader source: Energy.gov (indexed) [DOE]

Retrofitting Doors on Open Retrofitting Doors on Open Refrigerated Cases William Goetzler Navigant Consulting, Inc. wgoetzler@navigant.com (781) 270-8351 April 4, 2013 BBA Refrigeration Project Team Images courtesy of REMIS AMERICA, LLC. 2 | Building Technologies Office eere.energy.gov Technology Overview Image from Investigation of Energy- Efficient Supermarket Display Cases. 2004, Oak Ridge National Laboratory. Background and Motivation * Adding doors to open cases (retrofits) greatly reduces cold air loss - 50-80% load reduction - Load reduction = system energy savings

67

NREL: Vehicle Ancillary Loads Reduction - Air Conditioning and Emissions  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Conditioning and Emissions Conditioning and Emissions Air conditioning and indirect emissions go together in the sense that when a vehicle's air conditioning system is in use, fuel economy declines. When more petroleum fuel is burned, more pollution and greenhouse gases are emitted. An additional, "direct" source of greenhouse gas emissions is the refrigerant used in air conditioning. Called HFC-134a, this pressurized gas tends to seep through tiny openings and escapes into the atmosphere. It can also escape during routine service procedures such as system recharging. NREL's Vehicle Ancillary Loads Reduction team applied its vehicle systems modeling expertise in a study to predict fuel consumption and indirect emissions resulting from the use of vehicle air conditioning. The analysis

68

Heating, Ventilation, and Air Conditioning Renovations | Department of  

Broader source: Energy.gov (indexed) [DOE]

Heating, Ventilation, and Air Conditioning Renovations Heating, Ventilation, and Air Conditioning Renovations Heating, Ventilation, and Air Conditioning Renovations October 16, 2013 - 4:49pm Addthis Renewable Energy Options for HVAC Renovations Geothermal Heat Pumps (GHP) Solar Water Heating (SWH) Biomass Passive Solar Heating Biomass Heating Solar Ventilation Air Preheating Federal building renovations that encompass the heating, ventilation, and air conditioning (HVAC) systems in a facility provide a range of renewable energy opportunities. The primary technology option for HVAC renovations is geothermal heat pumps (GHP). Other options include leveraging a solar water heating (SWH) system to offset heating load or using passive solar heating or a biomass-capable furnace or boiler. Some facilities may also take

69

Air-Conditioning Systems Simulate World-Wide Climates  

Science Journals Connector (OSTI)

Air-Conditioning Systems Simulate World-Wide Climates ... WEATHER conditions equivalent to those in any part of the world can be simulated in a four-compartment test box set up at State College, Penna., by the U. S. Department of Agriculture's Regional Pasture Research Laboratory in its work to develop better pastures. ... Three heavily insulated doors permit access to each compartment; an inner door keeps conditioned air in the box from rushing out when the main door is opened. ...

1941-10-25T23:59:59.000Z

70

Engagement with Utilities on Multifamily Retrofits | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Assistance Program Multifamily Retrofits Engagement with Utilities on Multifamily Retrofits Engagement with Utilities on Multifamily Retrofits Weatherization professionals...

71

Importance of Design Conditions for Sizing Air-Conditioning Plant  

E-Print Network [OSTI]

Design conditions based on the meteorological data collected at two weather stations located less than 10 km away from each other within Kuwait City are presented for dry-bulb temperature (DBT) and web-bulb temperature (WBT) prioritization...

Shaban, N.; Maheshwari, G. P.; Suri, R. K.

2000-01-01T23:59:59.000Z

72

Reducing Air-Conditioning System Energy Using a PMV Index  

E-Print Network [OSTI]

ICEBO2006, Shenzhen, China Maximize Comfort: Temperature, Humidity and IAQ Vol.I-4-1 Reducing Air-Conditioning System Energy Using a PMV Index Hui Li Qingfan Zhang Associate professor...

Li, H.; Zhang, Q.

2006-01-01T23:59:59.000Z

73

Building America Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings- Control strategies to improve hydronic space heating performance  

Broader source: Energy.gov [DOE]

This webinar was presented on July 16, 2014, and provided information about improving the performance of central space conditioning systems in multifamily buildings.

74

INFLUENCE OF DESIGN AND OPERATING CONDITIONS ON UNDERFLOOR AIR DISTRIBUTION (UFAD) SYSTEM PERFORMANCE  

E-Print Network [OSTI]

Underfloor Air Distribution (UFAD) Design Guide. Atlanta:to design and operate underfloor air distribution (UFAD)DESIGN AND OPERATING CONDITIONS ON UNDERFLOOR AIR DISTRIBUTION (

2012-01-01T23:59:59.000Z

75

Approaches to Selecting Design Temperatures for Air-Conditioning  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Approaches to Selecting Design Temperatures for Air-Conditioning Approaches to Selecting Design Temperatures for Air-Conditioning Speaker(s): Eric Peterson Date: July 7, 2005 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Philip Haves Edward A. Arens The presentation will describe and compare the methods of determining cooling design conditions used by ASHRAE and the Australian Institute of Refrigeration, Air-Conditioning and Heating. A case study based on weather data for Brisbane will be used to illustrate the issues that arise. One issue is the usefulness of the 3-hourly temperature observations archived in International Weather Office records compared to the hourly observations required by the ASHRAE method. Another issue is the use of daily maxima, which have been archived for over 100 years at many Australian locations. Daily data can easily be used to find trends

76

ADVANCED FLUE GAS CONDITIONING AS A RETROFIT UPGRADE TO ENHANCE PM COLLECTION FROM COAL-FIRED ELECTRIC UTILITY BOILERS  

SciTech Connect (OSTI)

The U.S. Department of Energy and ADA Environmental Solutions are engaged in a project to develop commercial flue gas conditioning additives. The objective is to develop conditioning agents that can help improve particulate control performance of smaller or under-sized electrostatic precipitators on utility coal-fired boilers. The new chemicals will be used to control both the electrical resistivity and the adhesion or cohesivity of the fly ash. There is a need to provide cost-effective and safer alternatives to traditional flue gas conditioning with SO{sub 3} and ammonia. During this reporting quarter, installation of a liquid flue gas conditioning system was completed at the American Electric Power Conesville Plant, Unit 3. This plant fires a bituminous coal and has opacity and particulate emissions performance issues related to fly ash re-entrainment. Two cohesivity-specific additive formulations, ADA-44C and ADA-51, will be evaluated. In addition, ammonia conditioning will also be compared.

Kenneth E. Baldrey

2003-01-01T23:59:59.000Z

77

Deep Energy Retrofits - Eleven California Case Studies  

E-Print Network [OSTI]

retrofit thermal leakage in guestroom ceiling.171retrofit thermal leakage in guestroom ceiling Figure 107 -

Less, Brennan

2014-01-01T23:59:59.000Z

78

Study of thermoelectric technology for automobile air conditioning  

SciTech Connect (OSTI)

An analytical study was conducted to determine the feasibility of employing thermoelectric (TE) cooling technology in automobile air conditioners. The study addressed two key issues -- power requirements and availability of thermoelectric materials. In this paper, a mathematical model was developed to predict the performance of TE air conditioners and to analyze power consumption. Results show that the power required to deliver a cooling capacity of 4 kW (13,80 Btu/h) in a 38{degree}C (100{degree}F) environment will be 9.5 kW electric. Current TE modules suitable for air conditioning are made of bismuth telluride. The element tellurium is expected to be in short supply if TE cooling is widely implemented for auto air conditioning; some options available in this regard were studied and presented in this paper.

Mathiprakasam, B.; Heenan, P. (Midwest Research Inst., Kansas City, MO (United States)); Mei, V.C.; Chen, F.C. (Oak Ridge National Lab., TN (United States))

1991-01-01T23:59:59.000Z

79

ADVANCED FLUE GAS CONDITIONING AS A RETROFIT UPGRADE TO ENHANCE PM COLLECTION FROM COAL-FIRED ELECTRIC UTILITY BOILERS  

SciTech Connect (OSTI)

ADA Environmental Solutions (ADA-ES) has successfully completed a research and development program granted by the Department of Energy National Energy Technology Laboratory (NETL) to develop a family of non-toxic flue gas conditioning agents to provide utilities and industries with a cost-effective means of complying with environmental regulations on particulate emissions and opacity. An extensive laboratory screening of potential additives was completed followed by full-scale trials at four utility power plants. The developed cohesivity additives have been demonstrated on a 175 MW utility boiler that exhibited poor collection of unburned carbon in the electrostatic precipitator. With cohesivity conditioning, opacity spiking caused by rapping reentrainment was reduced and total particulate emissions were reduced by more than 30%. Ammonia conditioning was also successful in reducing reentrainment on the same unit. Conditioned fly ash from the process is expected to be suitable for dry or wet disposal and for concrete admixture.

C. Jean Bustard

2003-12-01T23:59:59.000Z

80

Fault tolerant control of outdoor air and AHU supply air temperature in VAV air conditioning systems using PCA method  

Science Journals Connector (OSTI)

This paper presents a fault tolerant control method to control the outdoor air ventilation and AHU supply air temperature, which concerned indoor air quality and humidity, respectively to satisfy ASHRAE Standard in VAV systems. The principal component analysis method, joint angle method, and compensatory reconstruction are used to detect, isolate, and reconstruct the fault, respectively for fault tolerant control. They are tested and evaluated in a simulation environment under the condition of temperature and flow sensors with fix bias faults.

Xinqiao Jin; Zhimin Du

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

ADVANCED FLUE GAS CONDITIONING AS A RETROFIT UPGRADE TO ENHANCE PM COLLECTION FROM COAL-FIRED ELECTRIC UTILITY BOILERS  

SciTech Connect (OSTI)

The U.S. Department of Energy and ADA Environmental Solutions are engaged in a project to develop commercial flue gas conditioning additives. The objective is to develop conditioning agents that can help improve particulate control performance of smaller or under-sized electrostatic precipitators on utility coal-fired boilers. The new chemicals will be used to control both the electrical resistivity and the adhesion or cohesivity of the fly ash. There is a need to provide cost-effective and safer alternatives to traditional flue gas conditioning with SO{sub 3} and ammonia. During this reporting quarter, performance testing of flue gas conditioning was underway at the PacifiCorp Jim Bridger Power Plant. The product tested, ADA-43, was a combination resistivity modifier with cohesivity polymers. This represents the first long-term full-scale testing of this class of products. Modifications to the flue gas conditioning system at Jim Bridger, including development of alternate injection lances, was also undertaken to improve chemical spray distribution and to avoid spray deposition to duct interior surfaces. Also in this quarter, a firm commitment was received for another long-term test of the cohesivity additives. This plant fires a bituminous coal and has opacity and particulate emissions performance issues related to fly ash re-entrainment. Ammonia conditioning is employed here on one unit, but there is interest in liquid cohesivity additives as a safer alternative.

Kenneth E. Baldrey

2002-05-01T23:59:59.000Z

82

Residential Retrofit Program Design Guide  

Broader source: Energy.gov [DOE]

This Residential Retrofit Program Design Guide focuses on the key elements and design characteristics of building and maintaining a successful residential retrofit program.

83

ADVANCED FLUE GAS CONDITIONING AS A RETROFIT UPGRADE TO ENHANCE PM COLLECTION FROM COAL-FIRED ELECTRIC UTILITY BOILERS  

SciTech Connect (OSTI)

The U.S. Department of Energy and ADA Environmental Solutions are engaged in a project to develop commercial flue gas conditioning additives. The objective is to develop conditioning agents that can help improve particulate control performance of smaller or under-sized electrostatic precipitators on utility coal-fired boilers. The new chemicals will be used to control both the electrical resistivity and the adhesion or cohesivity of the fly ash. There is a need to provide cost-effective and safer alternatives to traditional flue gas conditioning with SO{sub 3} and ammonia. During this reporting quarter, two cohesivity-specific additive formulations, ADA-44C and ADA-51, were evaluated in a full-scale trial at the American Electric Power Conesville plant. Ammonia conditioning was also evaluated for comparison. ADA-51 and ammonia conditioning significantly reduced rapping and non-rapped particulate re-entrainment based on stack opacity monitor data. Based on the successful tests to date, ADA-51 will be evaluated in a long-term test.

Kenneth E. Baldrey

2003-02-01T23:59:59.000Z

84

ADVANCED FLUE GAS CONDITIONING AS A RETROFIT UPGRADE TO ENHANCE PM COLLECTION FROM COAL-FIRED ELECTRIC UTILITY BOILERS  

SciTech Connect (OSTI)

The U.S. Department of Energy and ADA Environmental Solutions are engaged in a project to develop commercial flue gas conditioning additives. The objective is to develop conditioning agents that can help improve particulate control performance of smaller or under-sized electrostatic precipitators on utility coal-fired boilers. The new chemicals will be used to control both the electrical resistivity and the adhesion or cohesivity of the fly ash. There is a need to provide cost-effective and safer alternatives to traditional flue gas conditioning with SO{sub 3} and ammonia. During this reporting quarter, installation of a flue gas conditioning system was completed at PacifiCorp Jim Bridger Power Plant. Performance testing was underway. Results will be detailed in the next quarterly and subsequent technical summary reports. Also in this quarter, discussions were initiated with a prospective long-term candidate plant. This plant fires a bituminous coal and has opacity performance issues related to fly ash re-entrainment. Ammonia conditioning has been proposed here, but there is interest in liquid additives as a safer alternative.

Kenneth E. Baldrey

2002-01-01T23:59:59.000Z

85

E-Print Network 3.0 - air-conditioning system driven Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(3-0-3) Summary: and design of air-conditioning, heating, and refrigeration systems; including consideration of vapor... ME 4321 Refrigeration and Air Conditioning...

86

In Proc. 1996 ACEEE Summer Study, August 1996, Asilomar, CA Field Measurements of Efficiency and Duct Retrofit Effectiveness in Residential Forced air  

E-Print Network [OSTI]

% and a corresponding average decrease in HVAC energy use of 18%. This paper summarizes the pre- and post to large energy bills for home owners and to large peak demands for utilities. Some previous studies have% reduction in heating energy consumption. · Cummings et al. performed pre- and post-duct retrofit

87

ADVANCED FLUE GAS CONDITIONING AS A RETROFIT UPGRADE TO ENHANCE PM COLLECTION FROM COAL-FIRED ELECTRIC UTILITY BOILERS  

SciTech Connect (OSTI)

The U.S. Department of Energy and ADA Environmental Solutions are engaged in a project to develop commercial flue gas conditioning additives. The objective is to develop conditioning agents that can help improve particulate control performance of smaller or under-sized electrostatic precipitators on utility coal-fired boilers. The new chemicals will be used to control both the electrical resistivity and the adhesion or cohesivity of the fly ash. There is a need to provide cost-effective and safer alternatives to traditional flue gas conditioning with SO{sub 3} and ammonia. This quarterly report summarizes project activity for the period April-June, 2003. In this period there was limited activity and no active field trials. Results of ash analysis from the AEP Conesville demonstration were received. In addition, a site visit was made to We Energies Presque Isle Power Plant and a proposal extended for a flue gas conditioning trial with the ADA-51 cohesivity additive. It is expected that this will be the final full-scale evaluation on the project.

Kenneth E. Baldrey

2003-07-30T23:59:59.000Z

88

Modeling and Control of Aggregated Air Conditioning Loads Under Realistic Conditions  

E-Print Network [OSTI]

strategy is designed to track a desired demand curve and to ensure a stable and smooth response. I for a large fraction of electric demand. HVAC (Heating, Ventilation and air conditioning) systems and water heaters are examples of TCLs. They use local hysteresis control to maintain either air or water

Zhang, Wei

89

ADVANCED FLUE GAS CONDITIONING AS A RETROFIT UPGRADE TO ENHANCE PM COLLECTION FROM COAL-FIRED ELECTRIC UTILITY BOILERS  

SciTech Connect (OSTI)

The U.S. Department of Energy and ADA Environmental Solutions are engaged in a project to develop commercial flue gas conditioning additives. The objective is to develop conditioning agents that can help improve particulate control performance of smaller or under-sized electrostatic precipitators on utility coal-fired boilers. The new chemicals will be used to control both the electrical resistivity and the adhesion or cohesivity of the fly ash. There is a need to provide cost-effective and safer alternatives to traditional flue gas conditioning with SO{sub 3} and ammonia. During this reporting quarter, further laboratory-screening tests of additive formulations were completed. For these tests, the electrostatic tensiometer method was used for determination of fly ash cohesivity. Resistivity was measured for each screening test with a multi-cell laboratory fly ash resistivity furnace constructed for this project. Also during this quarter chemical formulation testing was undertaken to identify stable and compatible resistivity/cohesivity liquid products.

Kenneth E. Baldrey

2001-09-01T23:59:59.000Z

90

Analysis of Air Conditioning Effectiveness vs. Outdoor Conditions: Traditional Bins or Joint Frequency Bins?  

E-Print Network [OSTI]

There are a number of methods used to estimate the effectiveness of air conditioning equipment in handling loads. Full hourly computer simulations are probably the most accurate, but lack flexibility and are more cumbersome to use than more compact...

Cohen, B. M.

1998-01-01T23:59:59.000Z

91

Ventilation Air Preconditioning Systems  

E-Print Network [OSTI]

Ventilation Air Preconditioning Systems Mukesh Khattar Michael J. Brandemuehl Manager, Space Conditioning and Refrigeration Associate Professor Customer Systems Group Joint Center for Energy Management Electric Power Research Institute Campus... costs, the small, modular nature of the system allows great flexibility for fitting into retrofit geometries and saves space in new construction. Moreover, a single chiller can serve multiple air-handling units-in stark contrast to packaged...

Khattar, M.; Brandemuehl, M. J.

1996-01-01T23:59:59.000Z

92

Critical Question #1: How Do We Retrofit the Tough Buildings?  

Office of Energy Efficiency and Renewable Energy (EERE)

What are strategies in designing air sealing and insulation solutions for energy retrofits of the more challenging buildings? What are some examples of durable solutions that are relatively inexpensive? What hasn't worked and why? What looks promising?

93

Date | 1Refrigeration and Air Conditioning EMA Education and Training Date | 2Refrigeration and Air Conditioning EMA Education and Training  

E-Print Network [OSTI]

Date | 1Refrigeration and Air Conditioning EMA Education and Training #12;Date | 2Refrigeration operating pressure (MOP) 5. De-humidifying (Te control) 6. Defrost funtions 7. Loss of charge detection (LOC control) 6. Defrost funtions 7. Loss of charge detection (LOC) 8. Bleed function 9. Sensor placement tips

Oak Ridge National Laboratory

94

Energy audit case studies IIair conditioning (cooling) systems  

Science Journals Connector (OSTI)

This paper discusses a novel methodology for determination of the efficiencies of each segment in a centralized air conditioning (A/C) plant. The methodology is useful analytical tool in energy audit where it can be used for decision support for evolution of energy conservation measures and techno-economic evaluation of the various options. The procedure is applied to three A/C plants of capacity range from 50 to 500 TR. Losses in chilled air ducts and cycling losses in the refrigerant circuit are identified to be the major causes for decrease in the efficiency and capacity under rating of the systems. Effective controls and insulation of air ducts: have been shown to be the most cost effective solutions to improve the energy efficiency of the A/C plants. The generalized experimental data on overall performance of sixteen A/C plants is also provided.

M Siddhartha Bhatt

2000-01-01T23:59:59.000Z

95

Residential Retrofit Program Design Guide Overview Transcript...  

Broader source: Energy.gov (indexed) [DOE]

Residential Retrofit Program Design Guide Overview Transcript.doc Residential Retrofit Program Design Guide Overview Transcript.doc Residential Retrofit Program Design Guide...

96

Magnetic Refrigeration Technology for High Efficiency Air Conditioning  

SciTech Connect (OSTI)

Magnetic refrigeration was investigated as an efficient, environmentally friendly, flexible alternative to conventional residential vapor compression central air conditioning systems. Finite element analysis (FEA) models of advanced geometry active magnetic regenerator (AMR) beds were developed to minimize bed size and thus magnet mass by optimizing geometry for fluid flow and heat transfer and other losses. Conventional and magnetocaloric material (MCM) regenerator fabrication and assembly techniques were developed and advanced geometry passive regenerators were built and tested. A subscale engineering prototype (SEP) magnetic air conditioner was designed, constructed and tested. A model of the AMR cycle, combined with knowledge from passive regenerator experiments and FEA results, was used to design the regenerator beds. A 1.5 Tesla permanent magnet assembly was designed using FEA and the bed structure and plenum design was extensively optimized using FEA. The SEP is a flexible magnetic refrigeration platform, with individually instrumented beds and high flow rate and high frequency capability, although the current advanced regenerator geometry beds do not meet performance expectations, probably due to manufacturing and assembly tolerances. A model of the AMR cycle was used to optimize the design of a 3 ton capacity magnetic air conditioner, and the system design was iterated to minimize external parasitic losses such as heat exchanger pressure drop and fan power. The manufacturing cost for the entire air conditioning system was estimated, and while the estimated SEER efficiency is high, the magnetic air conditioning system is not cost competitive as currently configured. The 3 ton study results indicate that there are other applications where magnetic refrigeration is anticipated to have cost advantages over conventional systems, especially applications where magnetic refrigeration, through the use of its aqueous heat transfer fluid, could eliminate intermediate heat exchangers or oil distribution issues found in traditional vapor compression systems.

Boeder, A; Zimm, C

2006-09-30T23:59:59.000Z

97

Solar air-conditioning-active, hybrid and passive  

SciTech Connect (OSTI)

After a discussion of summer air conditioning requirements in the United States, active, hybrid, and passive cooling systems are defined. Active processes and systems include absorption, Rankine cycle, and a small variety of miscellaneous systems. The hybrid solar cooling and dehumidification technology of desiccation is covered as well as evaporative cooling. The passive solar cooling processes covered include convective, radiative and evaporative cooling. Federal and state involvement in solar cooling is then discussed. (LEW)

Yellott, J. I.

1981-04-01T23:59:59.000Z

98

Fetz Plumbing, Heating & Air Conditioning | Open Energy Information  

Open Energy Info (EERE)

Fetz Plumbing, Heating & Air Conditioning Fetz Plumbing, Heating & Air Conditioning Jump to: navigation, search Name Fetz Plumbing, Heating & Air Conditioning Address 115 Washington Street - P.O. Box 516 Place Urbana, Ohio Zip 43078 Sector Efficiency, Geothermal energy, Services, Solar Product Installation; Maintenance and repair Phone number 937-652-1136 Website http://fetzphc.com Coordinates 40.108862°, -83.757291° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.108862,"lon":-83.757291,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

99

E-Print Network 3.0 - air-conditioning units part Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

fans... : Use of mechanical equipment such as refrigeration, air conditioning, heating systems, ventilating fans... -handling units and mechanical, compressed air, and electric ......

100

Control of Computer Room Air Conditioning using IT Equipment Sensors  

E-Print Network [OSTI]

control routine to adjust setpoints for supply air temperaturecontrol routine to adjust setpoints for supply air temperaturesupply air temperature is provided. The fan-speed control

Bell, Geoffrey C.

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Cedarville School District Retrofit of Heating and Cooling Systems with  

Open Energy Info (EERE)

School District Retrofit of Heating and Cooling Systems with School District Retrofit of Heating and Cooling Systems with Geothermal Heat Pumps and Ground Source Water Loops Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Cedarville School District Retrofit of Heating and Cooling Systems with Geothermal Heat Pumps and Ground Source Water Loops Project Type / Topic 1 Recovery Act - Geothermal Technologies Program: Ground Source Heat Pumps Project Type / Topic 2 Topic Area 1: Technology Demonstration Projects Project Description - Improve the indoor air quality and lower the cost of cooling and heating the buildings that make up the campus of Cedarville High School, Middle School and Elementary School. - Provide jobs, and reduce requirements of funds for the capital budget of the School District, and thus give relief to taxpayers in this rural region during a period of economic recession. - The new Heat Pumps will be targeted to perform at very high efficiency with EER (energy efficiency ratios) of 22+/-. System capacity is planned at 610 tons. - Remove unusable antiquated existing equipment and systems from the campus heating and cooling system, but utilize ductwork, piping, etc. where feasible. The campus is served by antiquated air conditioning units combined with natural gas, and with very poor EER estimated at 6+/-. - Monitor for 3 years the performance of the new systems compared to benchmarks from the existing system, and provide data to the public to promote adoption of Geothermal technology. - The Geothermal installation contractor is able to provide financing for a significant portion of project funding with payments that fall within the energy savings resulting from the new high efficiency heating and cooling systems.

102

Control of Computer Room Air Conditioning using IT Equipment Sensors  

E-Print Network [OSTI]

8 Figure 5 Server rack Inlet Air Temperature (8 Figure 6 Server-rack Leaving Air Temperature (Rack .

Bell, Geoffrey C.

2010-01-01T23:59:59.000Z

103

Building America Webinar: High Performance Space Conditioning Systems, Part II- Air Distribution Retrofit Strategies for Affordable Housing  

Broader source: Energy.gov [DOE]

This presentation was delivered at the U.S. Department of Energy Building America webinar on November 18, 2014.

104

An Evaluation of Energy-Saving Retrofits from the Texas LoanSTAR Program  

E-Print Network [OSTI]

This report discusses the LoanSTAR retrofit savings through December 1993 with an emphasis on the Constant Volume to Variable Air Volume air-handler retrofits. The report also summarizes several key findings about the LoanSTAR program which has 70...

Haberl, J. S.; Claridge, D. E.; Heneghan, T.; Sieggreen, R.; Sims, J.

1996-01-01T23:59:59.000Z

105

MassSAVE (Electric) - Residential Retrofit Programs | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Retrofit Programs Retrofit Programs MassSAVE (Electric) - Residential Retrofit Programs < Back Eligibility Low-Income Residential Multi-Family Residential Residential Savings Category Home Weatherization Commercial Weatherization Heating & Cooling Commercial Heating & Cooling Cooling Construction Design & Remodeling Other Sealing Your Home Ventilation Heat Pumps Appliances & Electronics Commercial Lighting Lighting Water Heating Maximum Rebate Weatherization: $2000 Program Info Expiration Date 12/31/2012 State Massachusetts Program Type Utility Rebate Program Rebate Amount Weatherization: 75% Heat Pump Water Heater: $1,000 Income Eligible Customers: free home energy consultation Mulitifamily Incentives: comprehensive energy analysis, lighting upgrades, insulation, air sealing and other energy saving measures.

106

Residential Deep Energy Retrofits: Monitoring and Performance of 10  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Residential Deep Energy Retrofits: Monitoring and Performance of 10 Residential Deep Energy Retrofits: Monitoring and Performance of 10 California Case Study Homes Speaker(s): Brennan Less Jeremy Fisher Date: August 16, 2011 - 12:00pm Location: 90-3075 Deep Energy Retrofits are residential remodeling projects, which attempt to drastically reduce energy usage and environmental impact, as well as increase occupant comfort and improve indoor air quality. With energy reduction targets ranging from 50% to 90%, these projects use similar strategies to those typically deployed in a net-zero energy home. Most Deep Retrofits include insulation upgrades, window replacement, air sealing, HVAC replacement, renewable energy technologies, and new appliances and lighting. No building system or component is overlooked. 10 of these exciting projects are being monitored in California by the Energy

107

Liquid over-feeding air conditioning system and method  

DOE Patents [OSTI]

A refrigeration air conditioning system utilizing a liquid over-feeding operation is described. A liquid refrigerant accumulator-heat exchanger is placed in the system to provide a heat exchange relationship between hot liquid refrigerant discharged from condenser and a relatively cool mixture of liquid and vaporous refrigerant discharged from the evaporator. This heat exchange relationship substantially sub-cools the hot liquid refrigerant which undergoes little or no evaporation across the expansion device and provides a liquid over-feeding operation through the evaporator for effectively using 100 percent of evaporator for cooling purposes and for providing the aforementioned mixture of liquid and vaporous refrigerant. 1 figure.

Mei, V.C.; Chen, F.C.

1993-09-21T23:59:59.000Z

108

Deep Energy Retrofits & State Applications  

Broader source: Energy.gov [DOE]

This presentation, given through the DOE's Technical Assitance Program (TAP), provides information on Deep Energy Retrofits & State Applications

109

Retrofit Financial Analysis Tool  

Broader source: Energy.gov [DOE]

The Street and Parking Facility Lighting Retrofit Financial Analysis Tool was developed by a partnership of the DOE Municipal Solid-State Street Lighting Consortium, the Clinton Climate Initiative (CCI)/C40, and the Federal Energy Management Program (FEMP), for the financial analysis of retrofitting street and parking facility lighting with more efficient alternatives. Property owners, city and other government agencies, utilities, and energy efficiency organizations can use this tool to compute annualized energy and energy-cost savings, maintenance savings, greenhouse gas reductions, net present value, and simple payback associated with potential lighting upgrades.

110

Weatherking Heating & Air conditioning | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Weatherking Heating & Air conditioning Jump to: navigation, search Name Weatherking Heating & Air conditioning Address 51 Meadow Lane Place Northfield, Ohio Zip 44067 Sector Buildings, Efficiency, Geothermal energy, Renewable Energy, Services Product Business and legal services; Energy audits/weatherization; Energy provider: power production;Energy provider: wholesale;Engineering/architectural/design;Installation;Investment/finances;Maintenance and repair; Retail product sales and distribution Phone number 330-908-0281 Website http://www.weatherking1.com Coordinates 41.3340869°, -81.530299° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.3340869,"lon":-81.530299,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

111

E-Print Network 3.0 - air conditioning maintenance Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Last Updated: 41702 Summary: , including refrigeration, air conditioning, heating systems, ventilating fans, roof ventilators, exhaust fans... : Use of mechanical equipment...

112

Investigating the Performance of Solar Air Conditioning Motivation/Background Findings  

E-Print Network [OSTI]

Investigating the Performance of Solar Air Conditioning Motivation/Background Findings Two Building-thermal collectors We investigated 3 types of solar cooling technologies: · Air conditioning consumes 10% of all conditioning can reduce energy consumption, only if paired with a suitable system · Conventional office air

113

An overview of solar assisted air-conditioning system application in small office buildings in Malaysia  

Science Journals Connector (OSTI)

In many regions of the world especially tropical weather in Malaysia, the demand for cooling of indoor air is growing due to increasing comfort expectations and increasing cooling loads. Air-conditioning, the most common cooling mechanism for providing ... Keywords: Malaysian climatic conditions, absorption chiller, evacuated tube solar collector, high energy consumption, peak load demand, solar assisted air conditioning system, solar energy

Lim Chin Haw; Kamaruzzaman Sopian; Yusof Sulaiman

2009-02-01T23:59:59.000Z

114

National Grid Deep Energy Retrofit Pilot  

SciTech Connect (OSTI)

Through discussion of five case studies (test homes), this project evaluates strategies to elevate the performance of existing homes to a level commensurate with best-in-class implementation of high-performance new construction homes. The test homes featured in this research activity participated in Deep Energy Retrofit (DER) Pilot Program sponsored by the electric and gas utility National Grid in Massachusetts and Rhode Island. Building enclosure retrofit strategies are evaluated for impact on durability and indoor air quality in addition to energy performance. Evaluation of strategies is structured around the critical control functions of water, airflow, vapor flow, and thermal control. The aim of the research project is to develop guidance that could serve as a foundation for wider adoption of high performance, 'deep' retrofit work. The project will identify risk factors endemic to advanced retrofit in the context of the general building type, configuration and vintage encountered in the National Grid DER Pilot. Results for the test homes are based on observation and performance testing of recently completed projects. Additional observation would be needed to fully gauge long-term energy performance, durability, and occupant comfort.

Neuhauser, K.

2012-03-01T23:59:59.000Z

115

Analysis of a Dedicated Outdoor Air System and Low Temperature Supply Air Conditioning System  

E-Print Network [OSTI]

This paper presents the principles and the characteristics of a dedicated outdoor air system (DOAS) and low temperature supply air system. DOAS is offered based on the demands of indoor air quality and the low temperature supply air system...

Guang, L.; Li, R.

2006-01-01T23:59:59.000Z

116

Investigation of residential central air conditioning load shapes in NEMS  

SciTech Connect (OSTI)

This memo explains what Berkeley Lab has learned about how the residential central air-conditioning (CAC) end use is represented in the National Energy Modeling System (NEMS). NEMS is an energy model maintained by the Energy Information Administration (EIA) that is routinely used in analysis of energy efficiency standards for residential appliances. As part of analyzing utility and environmental impacts related to the federal rulemaking for residential CAC, lower-than-expected peak utility results prompted Berkeley Lab to investigate the input load shapes that characterize the peaky CAC end use and the submodule that treats load demand response. Investigations enabled a through understanding of the methodology by which hourly load profiles are input to the model and how the model is structured to respond to peak demand. Notably, it was discovered that NEMS was using an October-peaking load shape to represent residential space cooling, which suppressed peak effects to levels lower than expected. An apparent scaling down of the annual load within the load-demand submodule was found, another significant suppressor of the peak impacts. EIA promptly responded to Berkeley Lab's discoveries by updating numerous load shapes for the AEO2002 version of NEMS; EIA is still studying the scaling issue. As a result of this work, it was concluded that Berkeley Lab's customary end-use decrement approach was the most defensible way for Berkeley Lab to perform the recent CAC utility impact analysis. This approach was applied in conjunction with the updated AEO2002 load shapes to perform last year's published rulemaking analysis. Berkeley Lab experimented with several alternative approaches, including modifying the CAC efficiency level, but determined that these did not sufficiently improve the robustness of the method or results to warrant their implementation. Work in this area will continue in preparation for upcoming rulemakings for the other peak coincident end uses, commercial air conditioning and distribution transformers.

Hamachi LaCommare, Kristina; Marnay, Chris; Gumerman, Etan; Chan, Peter; Rosenquist, Greg; Osborn, Julie

2002-05-01T23:59:59.000Z

117

Module Development and Simulation of the Variable Refrigerant Flow Air Conditioning System under Cooling Conditions in Energyplus  

E-Print Network [OSTI]

As a high-efficiency air conditioning scheme, the variable refrigerant flow (VRF) air-conditioning system is finding its way into medium-sized office buildings. Based on a generic dynamic building energy simulation environment, EnergyPlus, a new...

Zhou, Y.; Wu, J.; Wang, R.; Shiochi, S.

2006-01-01T23:59:59.000Z

118

Progress in Residential Retrofit  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The Cutting Edge: Progress in Residential Retrofit The Cutting Edge: Progress in Residential Retrofit A geographic representation of saturations of ceiling fans based on data from the RASSes. White areas indicate a lack of data for that region. Many utilities survey their customers to learn more about the buildings and the occupants in their service areas. These surveys-usually called "residential appliance saturation surveys," or RASSes-ask for the number and types of appliances present, the number of people living in the home, and sometimes personal information. The RASSes are also used to collect information about the presence of conservation measures such as wall and ceiling insulation, weatherstripping, multipane windows, and water flow restrictors. Building Energy Analysis Group researchers Alan Meier and Brian Pon gathered RASSes

119

Commissioning and Diagnosis of VAV Air-Conditioning Systems  

E-Print Network [OSTI]

This paper presents a fault detection and diagnosis (FDD) strategy based on system knowledge, qualitative states and object-oriented statistical process control (SPC) models for typical pressure-independent variable air volume (VAV) air...

Qin, J.; Wang, S.; Chan, C.; Xiao, F.

2006-01-01T23:59:59.000Z

120

Operation of Energy-Efficient Air-Conditioned Buildings: An Overview  

E-Print Network [OSTI]

To design an optimum HVAC airside system that provides comfort and air quality in the air-conditioned spaces with efficient energy consumption is a great challenge. This paper evaluates recent progresses of HVAC airside design for the air-conditioned...

Khalil, E. E.

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Supermarket Energy Retrofit  

E-Print Network [OSTI]

Display Fans with EC Fans ECM 25 Install Glass Doors on Liquor Cases ECM 26 Upgrade Refrigeration Control System ECM 27 Refrigeration Tune up ECM 28 Daylight Loading Dock & BOH Store ECM 29 On-going Three Year Measurement & Verification Plan ECM 30..., Refrigeration, Retail, Skylights, Retrofit 1. Introduction A conventionally built supermarket has a combination of features that result in excessive energy consumption. There are open refrigerated displays adjacent to occupied heated aisles and very high...

Dazeley, J.

2012-01-01T23:59:59.000Z

122

Evaluation of Crawlspace Retrofits in Multifamily Buildings  

SciTech Connect (OSTI)

In 2011 and early 2012, Building Science Corporation (BSC) collaborated with Innova Services Corporation on a multifamily community unvented crawlspace retrofit project at Oakwood Gardens in Lansdale, Pennsylvania. BSC provided design consulting services and pre- and post-retrofit evaluation, testing, and data monitoring. The existing condition was a vented crawlspace with an uninsulated floor between the crawlspace and the dwelling units above. The crawlspace was therefore a critically weak link in the building enclosure and was ripe for improvement. Saving energy was the primary interest and goal, but the greatest challenge in this unvented crawlspace retrofit project was working through a crawlspace bulk water intrusion problem caused by inadequate site drainage, window well drainage, foundation wall drainage, and a rising water table during rainy periods. While the unvented crawlspace retrofit was effective in reducing heat loss, and the majority of the bulk water drainage problems had been resolved, the important finding was that some of the wood joists embedded in masonry pockets behind the brick veneer were showing signs of moisture damage.

Rudd, A.

2014-09-01T23:59:59.000Z

123

Flywheel Cooling: A Cooling Solution for Non Air-Conditioned Buildings  

E-Print Network [OSTI]

"Flywheel Cooling" utillzes the natural cooling processes of evaporation, ventilation and air circulation. These systems are providing low-cost cooling for distribution centers, warehouses, and other non air-conditioned industrial assembly plants...

Abernethy, D.

124

Analysis of efficiency of control of operation conditions of air gas cooling devices at compressor stations  

Science Journals Connector (OSTI)

Based on calculations of energy consumption by air gas cooling devices, an analysis has been made of the efficiency of the methods of control of temperature conditions of the transported gas. Two types of air ...

A. V. Krupnikov; A. D. Vanyashov; I. A. Yanvarev

2010-05-01T23:59:59.000Z

125

PSNH- Small Business Retrofit Program  

Broader source: Energy.gov [DOE]

Public Service of New Hampshire (PSNH), an electric utility, offers financial incentives and technical advice to small business customers seeking to improve energy efficiency through retrofits....

126

Evaluation of Retrofit Delivery Packages  

SciTech Connect (OSTI)

Residential energy retrofit activities are a critical component of efforts to increase energy efficiency in the U.S. building stock; however, retrofits account for a small percentage of aggregate energy savings at relatively high per unit costs. This report by Building America research team, Alliance for Residential Building Innovation (ARBI), describes barriers to widespread retrofits and evaluates opportunities to improve delivery of home retrofit measures by identifying economies of scale in marketing, energy assessments, and bulk purchasing through pilot programs in portions of Sonoma, Los Angeles, and San Joaquin Counties, CA. These targeted communities show potential and have revealed key strategies for program design, as outlined in the report.

Berman, M.; Smith, P.; Porse, E.

2013-07-01T23:59:59.000Z

127

How Do We Retrofit the Tough Buildings  

Broader source: Energy.gov (indexed) [DOE]

Do We Retrofit the Tough Buildings? Do We Retrofit the Tough Buildings? Cape Cod Style and Masonry Ken Neuhauser, Building Science Corporation Cape Cod Style Retrofitting the Tough Buildings 29 April 2013 2 Cape Cod Style Retrofitting the Tough Buildings 29 April 2013 3 Cape Cod Style Retrofitting the Tough Buildings 29 April 2013 4 Cape Cod Style Retrofitting the Tough Buildings 29 April 2013 5 Cape Cod Style Retrofitting the Tough Buildings 29 April 2013 6 Cape Cod Style Retrofitting the Tough Buildings 29 April 2013 7 Cape Cod Style Retrofitting the Tough Buildings 29 April 2013 8 Cape Cod Style Retrofitting the Tough Buildings 29 April 2013 9 Cape Cod Style Retrofitting the Tough Buildings 29 April 2013 10 Cape Cod Style Retrofitting the Tough Buildings 29 April 2013 11 Cape Cod Style - Knee Wall

128

Biodiesel + SCR Retrofit Testing | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

+ SCR Retrofit Testing Biodiesel + SCR Retrofit Testing This work retrofitted an in-use engine with urea SCR and measured NOx reductions versus blend levels of ULSD, B20, and B100...

129

HEATING, AIR-CONDITIONING AND REFRIGERATION DISTRIBUTORS INTERNATIONAL (HARDI)  

Broader source: Energy.gov [DOE]

OE Framework Document and Stakeholder Meeting regarding the Enforcement of the updated Energy Conservation Standards for Air Conditioners, Furnaces and Heat Pumps.

130

Best practices guide for residential HVAC Retrofits  

SciTech Connect (OSTI)

This best practices guide for residential HVAC system retrofits is aimed at contractors who want guidance on delivering energy efficient, cost effective and innovative products. It has been developed around the idea of having packages of changes to the building HVAC system and building envelope that are climate and house construction dependent. These packages include materials, procedures and equipment and are designed to remove some of the guesswork from a builder, contractor, installer or homeowner decisions about how best to carry out HVAC changes. The packages are not meant to be taken as rigid requirements--instead they are systems engineered guidelines that form the basis for energy efficient retrofits. Similar approaches have been taken previously for new construction to develop extremely energy efficient homes that are comfortable safe and durable, and often cost less than standard construction. This is best epitomized by the Building America program whose partners have built thousands of residences throughout the U.S. using these principles. The differences between retrofitting and new construction tend to limit the changes one can make to a building, so these packages rely on relatively simple and non-intrusive technologies and techniques. The retrofits also focus on changes to a building that will give many years of service to the occupants. Another key aspect of these best practices is that we need to know how a house is working so that we know what parts have the potential for improvement. To do this we have put together a set of diagnostic tools that combine physical measurements and checklists/questionnaires. The measured test results, observations and homeowner answers to questions are used to direct us towards the best retrofits applicable to each individual house. The retrofits will depend on the current condition of the building envelope and HVAC system, the local climate, the construction methods used for the house, and the presence of various energy saving systems (e.g., a Heat Recovery Ventilator) and/or materials. This is just like a doctor referring a patient for blood tests or x-rays before actually performing surgery. This way the doctor can be sure that he does the right thing. To take this analogy further--we can borrow from the medical profession and say that the first thought when retrofitting a house is to do no harm, i.e., do not make changes that could make the house worse to live in.

Walker, Iain S.

2003-08-11T23:59:59.000Z

131

CASE STUDY OF DUCT RETROFIT OF A 1985 HOME AND GUIDELINES FOR ATTIC AND CRAWL SPACE DUCT SEALING  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) is fully committed to research for developing the information and capabilities necessary to provide cost-effective residential retrofits yielding 50% energy savings within the next several years. Heating, ventilation, and air conditioning (HVAC) is the biggest energy end use in the residential sector, and a significant amount of energy can be wasted through leaky ductwork in unconditioned spaces such as attics and crawl spaces. A detailed duct sealing case study is presented for one house along with nine brief descriptions of other duct retrofits completed in the mixed-humid climate. Costs and estimated energy savings are reported for most of the ten houses. Costs for the retrofits ranged from $0.92/ft2 to $1.80/ft2 of living space and estimated yearly energy cost savings due to the duct retrofits range from 1.8% to 18.5%. Lessons learned and duct sealing guidelines based on these ten houses, as well as close work with the HVAC industry in the mixed-humid climate of East Tennessee, northern Georgia, and south-central Kentucky are presented. It is hoped that the lessons learned and guidelines will influence local HVAC contractors, energy auditors, and homeowners when diagnosing or repairing HVAC duct leakage and will be useful for steering DOE s future research in this area.

Boudreaux, Philip R [ORNL; Christian, Jeffrey E [ORNL; Jackson, Roderick K [ORNL

2012-01-01T23:59:59.000Z

132

Building Technologies Office: Advanced Energy Retrofit Guides  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Energy Energy Retrofit Guides to someone by E-mail Share Building Technologies Office: Advanced Energy Retrofit Guides on Facebook Tweet about Building Technologies Office: Advanced Energy Retrofit Guides on Twitter Bookmark Building Technologies Office: Advanced Energy Retrofit Guides on Google Bookmark Building Technologies Office: Advanced Energy Retrofit Guides on Delicious Rank Building Technologies Office: Advanced Energy Retrofit Guides on Digg Find More places to share Building Technologies Office: Advanced Energy Retrofit Guides on AddThis.com... About Take Action to Save Energy Activities 179d Tax Calculator Advanced Energy Design Guides Advanced Energy Retrofit Guides Building Energy Data Exchange Specification Buildings Performance Database Data Centers Energy Asset Score

133

Quality Assurance for Residential Retrofit Programs | Department...  

Broader source: Energy.gov (indexed) [DOE]

Quality Assurance for Residential Retrofit Programs Quality Assurance for Residential Retrofit Programs Blue version of the EERE PowerPoint template, for use with PowerPoint 2007....

134

Demonstrating and Deploying Integrated Retrofit Technologies...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Demonstrating and Deploying Integrated Retrofit Technologies and Solutions - 2014 BTO Peer Review Demonstrating and Deploying Integrated Retrofit Technologies and Solutions - 2014...

135

E-Print Network 3.0 - air conditioning hvac Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

systems play an important role in providing comfort in residential, commercial... of Heating, Refrigerating, and Air-Conditioning Engineers. Batterman S. and Burge H. 1995. "HVAC...

136

E-Print Network 3.0 - air-conditioning systems based Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

INVENTION, APPLICATION NO. 61297,958 OF 25 JAN 2010 Summary: for Efficient Heating, Cooling, Refrigeration, and Air Conditioning BY MILIVOJE M. KOSTIC, SYCAMORE, IL......

137

New Development of Simulation Methods on Refrigeration and Air Conditioning Equipments  

Science Journals Connector (OSTI)

Development status of classical simulation technology and application status of artificial intelligence on refrigeration and air conditioning equipments were introduced. The new concept of intelligence simulat...

Cao Wensheng

2011-01-01T23:59:59.000Z

138

E-Print Network 3.0 - air-conditioned domestic buildings Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

water chillers will contain more than 3 kg. If information... , air conditioning and heat pump technology. However, certain fire protection equipment that contains F......

139

Impact of Vehicle Air-Conditioning on Fuel Economy, Tailpipe Emissions, and Electric Vehicle Range: Preprint  

SciTech Connect (OSTI)

Vehicle air-conditioning can significantly impact fuel economy and tailpipe emissions of conventional and hybrid electric vehicles and reduce electric vehicle range. In addition, a new US emissions procedure, called the Supplemental Federal Test Procedure, has provided the motivation for reducing the size of vehicle air-conditioning systems in the US. The SFTP will measure tailpipe emissions with the air-conditioning system operating. Current air-conditioning systems can reduce the fuel economy of high fuel-economy vehicles by about 50% and reduce the fuel economy of today's mid-sized vehicles by more than 20% while increasing NOx by nearly 80% and CO by 70%.

Farrington, R.; Rugh, J.

2000-09-22T23:59:59.000Z

140

INFLUENCE OF DESIGN AND OPERATING CONDITIONS ON UNDERFLOOR AIR DISTRIBUTION (UFAD) SYSTEM PERFORMANCE  

E-Print Network [OSTI]

supply temperature setpoints, operation of blinds at peak conditions, impact of occupant control, andcontrols the AHU fan. In both UFAD and OH systems, supply air temperature (

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Bright prospects for lighting retrofits  

SciTech Connect (OSTI)

Great potential for energy savings can be found in the alleys, hallways and stairwells of multifamily buildings, but this potential is not always easy to realize. This article discusses the solution to common problems, retrofitting mistakes, retrofitting for savings, replacements for incandescent bulbs, better exit lights. 1 fig., 1 tab.

Hasterok, L. [Wisconsin Energy Conservation Corp., Madison, WI (United States)

1995-09-01T23:59:59.000Z

142

Capability of air filters to retain airborne bacteria and molds in heating, ventilating and air-conditioning (HVAC) systems  

Science Journals Connector (OSTI)

The capability of air filters (filterclass: F6, F7) to retain airborne outdoor microorganisms was examined in field experiments in two heating, ventilating and air conditioning (HVAC) systems. At the beginning of the 15-month investigation period, the first filter stages of both HVAC systems were equipped with new unused air filters. The number of airborne bacteria and molds before and behind the filters were determined simultaneously in 14 days-intervals using 6-stage Andersen cascade impactors. Under relatively dry ( 12 C) outdoor air conditions air filters led to a marked reduction of airborne microorganism concentrations (bacteria by approximately 70 % and molds by > 80 %). However, during long periods of high relative humidity (> 80 % R. H.) a proliferation of bacteria on air filters with subsequent release into the filtered air occured. These microorganisms were mainly smaller than 1.1 ?m therefore being part of the respirable fraction. The results showed furthermore that one possibility to avoid microbial proliferation is to limit the relative humidity in the area of the air filters to 80 % R. H. (mean of 3 days), e. g. by using preheaters in front of air filters in HVAC-systems.

Martin Mritz; Hans Peters; Bettina Nipko; Hennin Rden

2001-01-01T23:59:59.000Z

143

Advanced Rooftop Control (ARC) Retrofit: Field-Test Results  

SciTech Connect (OSTI)

The multi-year research study was initiated to find solutions to improve packaged equipment operating efficiency in the field. Pacific Northwest National Laboratory (PNNL), with funding from the U.S. Department of Energys (DOEs) Building Technologies Office (BTO) and Bonneville Power Administration (BPA) conducted this research, development and demonstration (RD&D) study. Packaged equipment with constant speed supply fans is designed to provide ventilation at the design rate at all times when the fan is operating as required by building code. Although there are a number of hours during the day when a building may not be fully occupied or the need for ventilation is lower than designed, the ventilation rate cannot be adjusted easily with a constant speed fan. Therefore, modulating the supply fan in conjunction with demand controlled ventilation (DCV) will not only reduce the coil energy but also reduce the fan energy. The objective of this multi-year research, development and demonstration project was to determine the magnitude of energy savings achievable by retrofitting existing packaged rooftop air conditioners with advanced control strategies not ordinarily used for packaged units. First, through detailed simulation analysis, it was shown that significant energy (between 24% and 35%) and cost savings (38%) from fan, cooling and heating energy consumption could be realized when packaged air conditioning units with gas furnaces are retrofitted with advanced control packages (combining multi-speed fan control, integrated economizer controls and DCV). The simulation analysis also showed significant savings for heat pumps (between 20% and 60%). The simulation analysis was followed by an extensive field test of a retrofittable advanced rooftop unit (RTU) controller.

Wang, Weimin; Katipamula, Srinivas; Ngo, Hung; Underhill, Ronald M.; Taasevigen, Danny J.; Lutes, Robert G.

2013-07-31T23:59:59.000Z

144

Test and Reconstruction of Air Conditioning System in a Hotel Lobby  

E-Print Network [OSTI]

Two air conditioning systems are equipped in a hotel lobby. It is found from the field test that the actual air rate is 40% and 16% of the nominal value, respectively, of the two systems, which is far lower than the design requirement. The air rate...

Wang, G.; Hu, Y.; Hu, S.; Chen, Q.

2006-01-01T23:59:59.000Z

145

Strengthening Building Retrofit Markets  

SciTech Connect (OSTI)

The Business Energy Financing (BEF) program offered commercial businesses in Michigan affordable financing options and other incentives designed to support energy efficiency improvements. We worked through partnerships with Michigan utilities, lenders, building contractors, trade associations, and other community organizations to offer competitive interest rates and flexible financing terms to support energy efficiency projects that otherwise would not have happened. The BEF program targeted the retail food market, including restaurants, grocery stores, convenience stores, and wholesale food vendors, with the goal of achieving energy efficiency retrofits for 2 percent of the target market. We offered low interest rates, flexible payments, easy applications and approval processes, and access to other incentives and rebates. Through these efforts, we sought to help customers strive for energy savings retrofits that would save 20 percent or more on their energy use. This program helped Michigan businesses reduce costs by financing energy efficient lighting, heating and cooling systems, insulation, refrigeration, equipment upgrades, and more. Businesses completed the upgrades with the help of our authorized contractors, and, through our lending partners, we provided affordable financing options.

Templeton, Mary [Michigan Saves; Jackson, Robert [Michigan Energy Office

2014-04-15T23:59:59.000Z

146

HEATING, AIR-CONDITIONING AND REFRIGERATION DISTRIBUTORS INTERNATIONAL...  

Broader source: Energy.gov (indexed) [DOE]

of the updated Energy Conservation Standards for Air Conditioners, Furnaces and Heat Pumps. DOE EX Parte Memo.pdf More Documents & Publications 3rd Semi-Annual Report to...

147

Measure Guideline: Air Sealing Mechanical Closets in Slab-On-Grade Homes  

SciTech Connect (OSTI)

This measure guideline describes covers two fundamental retrofit strategies for air sealing around air handling systems that are located within the living space in an enclosed closet: one in which all of the equipment is removed and being replaced, and a closet where the equipment is to remain and existing conditions are sealed. It includes the design and installation details necessary to effectively seal the air handler closet and central return system to maximize the efficiency and safety of the space conditioning system.

Dickson, B.

2012-02-01T23:59:59.000Z

148

Development of Optimization Tool for Air Conditioning System Operation  

E-Print Network [OSTI]

Operations, Berlin, Germany, October 20-22, 2008 Outside air temperature and the absolute air humidity are predicted by the Auto-regressive Integrated Moving Average (ARIMA) model [1],[2]. The solar radiation on a horizontal surface... of the error margin Energy Consumption (set value A) Energy Consumption (set value B) ESL-IC-08-10-55 Proceedings of the Eighth International Conference for Enhanced Building Operations, Berlin, Germany, October 20-22, 2008 J VAV unit is also operated under...

Sumiyoshi, D.; Akashi, Y.

149

Air Distribution and Microenvironment Evaluation of a Desktop Task Conditioning System  

E-Print Network [OSTI]

Task conditioning aims to provide each occupant with personalized clean air direct to the breathing zone. The microenvironment of a typical office workplace, consisting of two desktop task conditioning systems (a Horizontal Desk Grill (HDG...

Zheng, G.

2006-01-01T23:59:59.000Z

150

Improving the Performance of Air-Conditioning Systems in an ASEAN Climate  

E-Print Network [OSTI]

This paper describes an analysis of air conditioning performance under hot and humid tropical climate conditions appropriate to the Association of South East Asian Nations (ASEAN) countries. This region, with over 280 million people, has one...

Busch, J. F.; Warren, M. L.

1988-01-01T23:59:59.000Z

151

Chamberlain Heights Redevelopment: A Large Scale, Cold Climate Study of Affordable Housing Retrofits  

SciTech Connect (OSTI)

The City of Meriden Housing Authority (MHA) collaborated with affordable housing developer Jonathon Rose Companies (JRC) to complete a gut renovation of 124 residential units in the Chamberlain Heights retrofit project. The affordable housing community is made up of 36 buildings in duplex and quad configurations located on 22 acres within two miles of downtown Meriden, CT. The final post-retrofit analysis showed 40-45% source energy savings over the existing pre-retrofit conditions.

Donnelly, K.; Mahle, M.

2012-03-01T23:59:59.000Z

152

Cooling energy efficiency and classroom air environment of a school building operated by the heat recovery air conditioning unit  

Science Journals Connector (OSTI)

Abstract The recently-built school buildings have adopted novel heat recovery ventilator and air conditioning system. Heat recovery efficiency of the heat recovery facility and energy conservation ratio of the air conditioning unit were analytically modeled, taking the ventilation networks into account. Following that, school classroom displacement ventilation and its thermal stratification and indoor air quality indicated by the CO2 concentration have been numerically modeled concerning the effects of delivering ventilation flow rate and supplying air temperature. Numerical results indicate that the promotion of mechanical ventilation rate can simultaneously boost the dilution of indoor air pollutants and the non-uniformity of indoor thermal and pollutant distributions. Subsequent energy performance analysis demonstrates that classroom energy demands for ventilation and cooling could be reduced with the promotion of heat recovery efficiency of the ventilation facility, and the energy conservation ratio of the air conditioning unit decreases with the increasing temperatures of supplying air. Fitting correlations of heat recovery ventilation and cooling energy conservation have been presented.

Yang Wang; Fu-Yun Zhao; Jens Kuckelkorn; Di Liu; Li-Qun Liu; Xiao-Chuan Pan

2014-01-01T23:59:59.000Z

153

Measure Guideline: Hybrid Foundation Insulation Retrofits  

SciTech Connect (OSTI)

This measure guideline provides recommendations for designs and variations for retrofit hybrid assemblies in improving interior foundation insulation and water management of basements. Variations include closed cell spray foam (ccSPF) with membrane waterproofing or air gap membrane drainage layers, rigid board foam insulation at flat walls (cast concrete or CMU block), a 'partial drainage' detail making use of the bulk water drainage that occurs through the field of a rubble stone wall, and non-drained spray foam assemblies (including slab insulation).

Ueno, K.; Lstiburek, J.

2012-05-01T23:59:59.000Z

154

RHEOLOGICAL STUDY OF TWO-PHASE SECONDARY FLUIDS FOR REFRIGERATION AND AIR CONDITIONING.  

E-Print Network [OSTI]

, indirect refrigeration systems renews interest as they enable to notably reduce the use of environmental the refrigeration applications to the air-conditioning systems. However, this kind of process only remainsRHEOLOGICAL STUDY OF TWO-PHASE SECONDARY FLUIDS FOR REFRIGERATION AND AIR CONDITIONING. Mylène

Boyer, Edmond

155

The Use of Conditioned Air for Maintaining Quality of Stored Sorghum Grain.  

E-Print Network [OSTI]

.- ...... '. .................................... 21 .............................................. Design Method No: 3 21 Effects of Conditioned-air Storage on Grain Quality ........................................................... II! Insect Control...,~ of controlled storage environments for bulk yain are discussed. The initial vapor pressure of tile moisture in the grain and the partial pressure of !lie vapor in the conditioned air circulating through llle grain mass were found to be very important tl...

Person, Nat K. Jr.; Sorenson, J. W. Jr.; McCune, W. E.; Hobgood, Price

1967-01-01T23:59:59.000Z

156

Experimental Investigation on the Operation Performance of a Liquid Desiccant Air-conditioning System  

E-Print Network [OSTI]

A large share of energy consumption is taken by an air-conditioning system. It worsens the electricity load of the power network. Therefore, more and more scholars are paying attention to research on new types of air-conditioning systems...

Liu, J.; Wang, J.; Wu, Z.; Gu, W.; Zhang, G.

2006-01-01T23:59:59.000Z

157

Retrofit Existing Buildings | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Retrofit Existing Buildings Retrofit Existing Buildings Retrofit Existing Buildings Renovation, retrofit and refurbishment of existing buildings represent an opportunity to upgrade the energy performance of commercial building assets for their ongoing life. Often retrofit involves modifications to existing commercial buildings that may improve energy efficiency or decrease energy demand. In addition, retrofits are often used as opportune time to install distributed generation to a building. Energy efficiency retrofits can reduce the operational costs, particularly in older buildings, as well as help to attract tenants and gain a market edge. The Building Technologies Office provides resources that allow planners, designers, and owners to focus on energy-use goals from the first planning

158

Retrofit of a Multifamily Mass Masonry Building in New England  

SciTech Connect (OSTI)

Merrimack Valley Habitat for Humanity (MVHfH) has partnered with Building Science Corporation to provide high performance affordable housing for 10 families in the retrofit of an existing brick building (a former convent) into condominiums. The research performed for this project provides information regarding advanced retrofit packages for multi-family masonry buildings in Cold climates. In particular, this project demonstrates safe, durable, and cost-effective solutions that will potentially benefit millions of multi-family brick buildings throughout the East Coast and Midwest (Cold climates). The retrofit packages provide insight on the opportunities for and constraints on retrofitting multifamily buildings with ambitious energy performance goals but a limited budget. The condominium conversion project will contribute to several areas of research on enclosures, space conditioning, and water heating. Enclosure items include insulation of mass masonry building on the interior, airtightness of these types of retrofits, multi-unit building compartmentalization, window selection, and roof insulation strategies. Mechanical system items include combined hydronic and space heating systems with hydronic distribution in small (low load) units, and ventilation system retrofits for multifamily buildings.

Ueno, K.; Kerrigan, P.; Wytrykowska, H.; Van Straaten, R.

2013-08-01T23:59:59.000Z

159

Low-Flow Liquid Desiccant Air Conditioning: General Guidance and Site Considerations  

SciTech Connect (OSTI)

Dehumidification or latent cooling in buildings is an area of growing interest that has been identified as needing more research and improved technologies for higher performance. Heating, ventilating, and air-conditioning (HVAC) systems typically expend excessive energy by using overcool-and-reheat strategies to dehumidify buildings. These systems first overcool ventilation air to remove moisture and then reheat the air to meet comfort requirements. Another common strategy incorporates solid desiccant rotors that remove moisture from the air more efficiently; however, these systems increase fan energy consumption because of the high airside pressure drop of solid desiccant rotors and can add heat of absorption to the ventilation air. Alternatively, liquid desiccant air-conditioning (LDAC) technology provides an innovative dehumidification solution that: (1) eliminates the need for overcooling and reheating from traditional cooling systems; and (2) avoids the increased fan energy and air heating from solid desiccant rotor systems.

Kozubal, E.; Herrmann, L.; Deru, M.; Clark, J.

2014-09-01T23:59:59.000Z

160

Retrofit Analysis of Older, Single Family Housing in San Antonio  

E-Print Network [OSTI]

Retrofit Analysis of Older, Single Family Housing in San Antonio Hazem Rashed-Ali, PhD, University of Texas at San Antonio CATEE 2013 Clean Air Through Energy Efficiency Conference December 16-18, 2013 San Antonio, TX 12/17/2013 ESL-KT-13... of San Antonio has 28 historic districts, Potential energy savings from retrofit of older homes are substantial and undisputed. However: Historic homes need thoughtful attention to the details and features that cause society to give them protected...

Rashed-Ali, H.

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Retrofit of Existing Residential Building: a Case Study  

E-Print Network [OSTI]

was reasonable, the construction quality was not good. The air leak from the circumference of window was serious and some inner surface of external walls formed condensation of moisture. Before retrofit, the annual heating energy consumption was 9.28?108kJ.... The annual coal consumption for heating was 31.68 tons standard coal. After retrofit, the annual heat consumption was 6.73?108kJ. The annual coal consumption for heating was 22.97 tons standard coal. With the 2.55?108kJ reduction of the annual heating...

Zhao, L.; Xu, W.; Li, L.; Gao, G.

2006-01-01T23:59:59.000Z

162

Residential Retrofit Design Guide Overview | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Residential Retrofit Design Guide Overview Residential Retrofit Design Guide Overview Residential Retrofit Design Guide Overview Webinar. Res Retro Design Guide Webinar 5-3-11...

163

Idaho Power - Easy Upgrades for Simple Retrofits Rebate Program |  

Broader source: Energy.gov (indexed) [DOE]

Idaho Power - Easy Upgrades for Simple Retrofits Rebate Program Idaho Power - Easy Upgrades for Simple Retrofits Rebate Program Idaho Power - Easy Upgrades for Simple Retrofits Rebate Program < Back Eligibility Commercial Industrial Savings Category Home Weatherization Commercial Weatherization Heating & Cooling Commercial Heating & Cooling Cooling Appliances & Electronics Construction Design & Remodeling Manufacturing Sealing Your Home Windows, Doors, & Skylights Ventilation Heat Pumps Commercial Lighting Lighting Insulation Maximum Rebate Up to 100,000 per site per year. Program Info Funding Source Conservation Program Funding Charge State Oregon Program Type Utility Rebate Program Rebate Amount A/C or Heat Pumps: $25-$100/ton Economizer Control Addition: $75/ton Air-Side Economizer Repair: $250 Evaporative Coolers: $100-$300/ton

164

Baltimore Boy's Asthma Improved Through Retrofit | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Baltimore Boy's Asthma Improved Through Retrofit Baltimore Boy's Asthma Improved Through Retrofit Baltimore Boy's Asthma Improved Through Retrofit October 31, 2009 - 11:32am Addthis Joshua DeLung What does this mean for me? The Baltimore Green and Healthy Homes Initiative program, made possible with Recovery Act dollars, provides comprehensive health, safety, and energy efficiency upgrades to low-income families around the city. Lekquan Young rushed her 8-month-old son to the hospital when she noticed his chest looked sunken as he breathed. The doctor told her that her baby son had asthma. Today, her son is 8 years old and has suffered frequent asthma attacks at home. "There was mold within the home and the air quality wasn't good," says Lekquan, a single mom living in Baltimore, Md. The roof over the

165

MassSAVE (Gas) - Commercial Retrofit Program | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

MassSAVE (Gas) - Commercial Retrofit Program MassSAVE (Gas) - Commercial Retrofit Program MassSAVE (Gas) - Commercial Retrofit Program < Back Eligibility Commercial Construction Industrial Installer/Contractor Institutional Local Government Schools State Government Savings Category Heating & Cooling Commercial Heating & Cooling Heating Other Manufacturing Commercial Weatherization Appliances & Electronics Water Heating Maximum Rebate Projects over $25,000 or involve 5 or more equipment units, customers should contact their utility Program Info State Massachusetts Program Type Utility Rebate Program Rebate Amount Warm Air Furnaces with Electronic Commutated Motor (ECM): $500-$800 Condensed Unit Heaters: $7500 Condensing Boilers: $1,000 - $10,000 Infrared Heaters: $750 Condensing Water Heater: $500 On-Demand Tankless Water Heater: $500 - $800

166

Short-Term Test Results: Multifamily Home Energy Efficiency Retrofit  

SciTech Connect (OSTI)

Multifamily deep energy retrofits (DERs) represent great potential for energy savings, while also providing valuable insights on research-generated efficiency measures, cost-effectiveness metrics, and risk factor strategies for the multifamily housing industry. The Bay Ridge project is comprised of a base scope retrofit with a goal of achieving 30% savings (relative to pre-retrofit), and a DER scope with a goal of 50% savings (relative to pre-retrofit). The base scope has been applied to the entire complex, except for one 12-unit building which underwent the DER scope. Findings from the implementation, commissioning, and short-term testing at Bay Ridge include air infiltration reductions of greater than 60% in the DER building; a hybrid heat pump system with a Savings to Investment Ratio (SIR) > 1 (relative to a high efficiency furnace) which also provides the resident with added incentive for energy savings; and duct leakage reductions of > 60% using an aerosolized duct sealing approach. Despite being a moderate rehab instead of a gut rehab, the Bay Ridge DER is currently projected to achieve energy savings ? 50% compared to pre-retrofit, and the short-term testing supports this estimate.

Lyons, J.

2013-01-01T23:59:59.000Z

167

Research on Fuzzy Regulation Strategies in the Constant Air Volume Air Conditioning System  

E-Print Network [OSTI]

Yifeng Wu Honglin Wang Doctoral Candidate Associate Professor Master Master Master Master School of Municipal & Environmental Eng, Harbin Institute of Technology Harbin P.R. China, 150090 hitbai@163.com Abstract: The energy consumption... region and the same operating strategy was adopted[1]. Wang Li analyzed the temperature control principles to achieve economical operation in CAV system, and presented improved control strategy to integrate fresh air control with indoor air...

Bai, T.; Zhang, J.; Ning, N.; Tong, K.; Wu, Y.; Wang, H.

2006-01-01T23:59:59.000Z

168

Radon Mitigation in Schools Utilising Heating, Ventilating and Air Conditioning Systems  

Science Journals Connector (OSTI)

......and Air Conditioning Engineers (ASHRAE) standard Ventilation for Acceptable Indoor Air Quality...Two case studies are presented where HVAC technology was implemented for controlling...system in a two-storey building. The HVAC system's controls were restored and modified......

G. Fisher; B. Ligman; T. Brennan; R. Shaughnessy; B.H. Turk; B. Snead

1994-12-01T23:59:59.000Z

169

Optimization of the Fin Heat Pipe for Ventilating and Air Conditioning with a Genetic Algorithm  

E-Print Network [OSTI]

conservation, and it is urgent. At the same time, the energy consumption about air-conditioning of buildings continues to increase and the new wind energy accounts for 4%~12% of the buildings total energy consumption [1]. A heat recovery system for air...

Qian, J.; Sun, D.; Li, G.

2006-01-01T23:59:59.000Z

170

Effect of a Radiant Panel Cooling System on Indoor Air Quality of a Conditioned Space  

E-Print Network [OSTI]

This paper discusses the effect of a radiant cooling panel system on an indoor air quality (IAQ) of a conditioned space. In this study, ceiling radiant cooling panel, mechanical ventilation with fan coil unit (FCU) and 100% fresh air are used...

Mohamed, E.; Abdalla, K. N.

2010-01-01T23:59:59.000Z

171

Analysis of Energy Saving in a Clean Room Air-conditioning System  

E-Print Network [OSTI]

simulated and compared the summer energy consuming conditions of the two systems. Results prove the superiority of the 2nd return air system, and the validity of the simulation. Also, the air system energy performance in summer was illustrated with typical...

Liu, S.; Liu, J.; Pei, J.; Wang, M.

2006-01-01T23:59:59.000Z

172

"Table HC11.6 Air Conditioning Characteristics by Northeast Census Region, 2005"  

U.S. Energy Information Administration (EIA) Indexed Site

6 Air Conditioning Characteristics by Northeast Census Region, 2005" 6 Air Conditioning Characteristics by Northeast Census Region, 2005" " Million U.S. Housing Units" ,,"Northeast Census Region" ,"U.S. Housing Units (millions)" ,,,"Census Division" ,,"Total Northeast" "Air Conditioning Characteristics",,,"Middle Atlantic","New England" "Total",111.1,20.6,15.1,5.5 "Do Not Have Cooling Equipment",17.8,4,2.4,1.7 "Have Coolling Equipment",93.3,16.5,12.8,3.8 "Use Cooling Equipment",91.4,16.3,12.6,3.7 "Have Equipment But Do Not Use it",1.9,0.3,"Q","Q" "Air-Conditioning Equipment1, 2 " "Central System",65.9,6,5.2,0.8 "Without a Heat Pump",53.5,5.5,4.8,0.7

173

"Table HC13.6 Air Conditioning Characteristics by South Census Region, 2005"  

U.S. Energy Information Administration (EIA) Indexed Site

6 Air Conditioning Characteristics by South Census Region, 2005" 6 Air Conditioning Characteristics by South Census Region, 2005" " Million U.S. Housing Units" ,,"South Census Region" ,"U.S. Housing Units (millions)" ,,,"Census Division" ,,"Total South" "Air Conditioning Characteristics",,,"South Atlantic","East South Central","West South Central" "Total",111.1,40.7,21.7,6.9,12.1 "Do Not Have Cooling Equipment",17.8,1.4,0.8,0.2,0.3 "Have Cooling Equipment",93.3,39.3,20.9,6.7,11.8 "Use Cooling Equipment",91.4,38.9,20.7,6.6,11.7 "Have Equipment But Do Not Use it",1.9,0.5,"Q","Q","Q" "Air-Conditioning Equipment1, 2 "

174

Analysis of the Diagnostic Methods of the Performance Failure of Heating and Air Conditioning Systems  

E-Print Network [OSTI]

ICEBO2006, Shenzhen, China Co ntrol Systems for Energy Efficiency and Comfort, Vol. V-5-2 Analysis of the Diagnostic Methods of the Performance Failure of Heating and Air Conditioning Systems Lianyou LI Zhihong ZHANG Yong...

Li, L.; Zhang, Z.; Sun, Y.; Li, D.; Xie, H.

2006-01-01T23:59:59.000Z

175

Air-Conditioning, Heating, and Refrigeration Institute (AHRI) Regulatory Burden RFI  

Broader source: Energy.gov [DOE]

These comments are submitted by the Air-Conditioning, Heating, and Refrigeration Institute (AHRI) in response to the U.S. Department of Energys (DOE) notice in the August 8, 2012 Federal Register...

176

Economic Analysis and Comparison of Waste Water Resource Heat Pump Heating and Air-Conditioning System  

E-Print Network [OSTI]

ICEBO2006, Shenzhen, China Renewable Energy Resources and a Greener Future, Vol.VIII-8-1 Economic Analysis and Comparison of Waste Water Resource Heat Pump Heating and Air-conditioning System Chunlei Zhang Suilin Wang Hongbing Chen...

Zhang, C.; Wang, S.; Chen, H.; Shi, Y.

2006-01-01T23:59:59.000Z

177

Impact of the Variable Refrigerant Volume Air Conditioning System on Building Energy Efficiency  

E-Print Network [OSTI]

The application of the variable refrigerant volume multi-zone air conditioning systems has met with mixed results since the publication of the Design Standard for Energy Efficiency of Public Buildings. This paper analyzes the characteristics...

Zhu, H.

2006-01-01T23:59:59.000Z

178

Multi-Domain Modeling and Simulation of Automotive Air Conditioning System Based On Modelica  

Science Journals Connector (OSTI)

The automotive air conditioning (AC) systems are complex systems where two-phase flow, pneumatic, mechanical and electrical components are coupled. Such systems coupled with various physical domains have great...

Jing Li; Yunqing Zhang

2013-01-01T23:59:59.000Z

179

Modelica Library for Building Heating, Ventilation and Air-Conditioning Systems  

E-Print Network [OSTI]

Austria, September 2006. Modelica As- sociation and Arsenalsystems. The ?exibility of Modelica has been T room in [ C]lss. AirConditioning - a Modelica li- o brary for dynamic

Wetter, Michael

2010-01-01T23:59:59.000Z

180

Demand response: a strategy to address residential air-conditioning peak load in Australia  

Science Journals Connector (OSTI)

Rapid growth in electricity network peak demand is increasing pressure for new investment which may be used for only a few hours a year. Residential air-conditioning is widely believed to be the prime cause of...

Robert Smith; Ke Meng; Zhaoyang Dong

2013-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Numerical Analysis of the Channel Wheel Fresh Air Ventilator Under Frosting Conditions  

E-Print Network [OSTI]

channel wheel heat exchanger under different ambient conditions using the model developed. These include frost formation on the surface of the channel wheel heat exchanger, and impacts on the operational performance of the channel wheel fresh air...

Gao, B.; Dong, Z.; Cheng, Z.; Luo, E.

2006-01-01T23:59:59.000Z

182

Dependence of thermal destabilization of electric-arc plasma in an air flow on discharge conditions  

Science Journals Connector (OSTI)

The effect of the conditions of electric-arc burning in an air flow on the ... processes in the development of instability in an arc-discharge column is shown.

V. N. Borisyuk; S. V. Goncharik

1997-03-01T23:59:59.000Z

183

Research on Solar High-Temperature Absorption Air-Conditioning Systems  

Science Journals Connector (OSTI)

This paper studies the characteristics and performance of solar higher-temperature absorption air conditioning systems which employed linear concentrating collectors and double-effect absorption chillers. A solar...

Guoqing Yu; Jinhua Tang; Zhijun Zou

2009-01-01T23:59:59.000Z

184

E-Print Network 3.0 - automative air-conditioning systems Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

systems Page: << < 1 2 3 4 5 > >> 1 PLEASE HELP SAVE ENERGY Learn how to control the heating system for your room. Summary: & SW Heat & air conditioning control Cary E & NE &...

185

Feasibility of Municipal Water Mains as Heat Sink for Residential Air-Conditioning  

E-Print Network [OSTI]

It has been proposed that municipal water mains be used as the heat sink or the heat source for air-conditioning or heating, respectively. This paper addresses the extent of thermal contamination associated with the use of municipal water...

Vliet, G. C.

1994-01-01T23:59:59.000Z

186

Development and modelling of a solar assisted liquid desiccant dehumidification air-conditioning system  

Science Journals Connector (OSTI)

This paper presents the development and simulation of an advanced solar assisted liquid desiccant dehumidification air-conditioning system for ... regenerator, and an array of flat plate solar collectors. The sys...

Aqeel Kareem Mohaisen; Zhenjun Ma

2014-09-01T23:59:59.000Z

187

E-Print Network 3.0 - air conditioning heat Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

water. FIND... : Determine which condition feels colder. Contrast these results with a heat loss of 30 Wm2 under ormal room... in the case f air flow.o ANALYSIS: The hand will...

188

Energy Comparison Between Conventional and Chilled Water Thermal Storage Air Conditioning Systems  

E-Print Network [OSTI]

, encouraged by government subsidies and driven by the rapid and continual expansion in building construction, urban development, and the heavy reliance on Air Conditioning (AC) systems for the cooling of buildings. The Chilled Water Thermal Storage (CWTS...

Sebzali, M.; Hussain, H. J.; Ameer, B.

2010-01-01T23:59:59.000Z

189

A Methodology for Identifying Retrofit Energy Savings in Commercial Buildings  

E-Print Network [OSTI]

Measured energy savings resulting from energy conservation retrofits in commercial buildings can be used to verify the success of the retrofits, determine the payment schedule for the retrofits, and guide the selection of future retrofits...

Kissock, K.; Reddy, A.; Claridge, D.

190

Retrofitting Vegas: Implementing Energy Efficiency in Two Las Vegas Test Homes  

SciTech Connect (OSTI)

In 2009, the state of Nevada received nearly forty million dollars in Neighborhood Stabilization Funds from the Department of Housing and Urban Development. The purpose of this funding was to stabilize communities that have suffered from foreclosures and abandonment. In an effort to provide guidance to local officials and maximize how effectively this NSP funding is utilized in retrofitting homes, CARB provided design specifications, energy modeling, and technical support for the Building America Retrofit Alliance (BARA) team and its local partners - Better Building Performance, Nevada Energy Star Partners Green Alliance, and Home Free Nevada - for two retrofit test homes. One home was to demonstrate a modest retrofit and the other a deep energy retrofit. Through this project, CARB has provided two robust solution packages for retrofitting homes built in this region between the 1980s and early 1990s without substantially inconveniencing the occupants. The two test homes, the Carmen and Sierra Hills, demonstrate how cost-effectively energy efficient upgrades can be implemented in the hot, dry climate of the Southwest. In addition, the homes were used as an educational experience for home performance professionals, building trades, remodelers, and the general public. In-field trainings on air-sealing, HVAC upgrades, and insulating were provided to local contractors during the retrofit and BARA documented these retrofits through a series of video presentations, beginning with a site survey and concluding with the finished remodel and test out.

Puttagunta, S.

2013-04-01T23:59:59.000Z

191

Discussion of Air-Conditioning Energy-Savings in Hot-Summer and Cold-Winter Regions  

E-Print Network [OSTI]

Introducing several kinds of air-conditioning systems energy conservation measures, and according to the climate of the hot-summer and cold-winter region in China, this paper puts forward an overall conception for air-conditioning energy...

Zheng, W.; Gong, F.; Lou, X.; Cheng, J.

2006-01-01T23:59:59.000Z

192

The Coordinated Control of a Central Air Conditioning System Based on Variable Chilled Water Temperature and Variable Chilled Water Flow  

E-Print Network [OSTI]

At present, regulation of water flow by means of pump frequency conversion is one of the major methods for power-saving in central air conditioning systems. In this article, optimization regulation for central air conditioning system on the basis...

Liu, J.; Mai, Y.; Liu, X.

2006-01-01T23:59:59.000Z

193

Direct-Expansion Air-Conditioning System Performance in Low Humidity Applications: A Case Study  

E-Print Network [OSTI]

DIRECT-EXPANSION AIR-CONDITIONING SYSTEM PERFORMANCE IN LOW HUMIDITY APPLICATIONS: A CASE STUDY MUKESH K. KHATTAR, P.E. DENNIS KEEBAUGH, P.E. Senior Systems Engineer Senior Research Engineer Florida Solar Energy Center Shenandoah Solar Center... warehouse. The flat gravel roof is exposed to sun. The 16' ceiling is insulated with two inch spray foam. Entrance to the warehouse is through sealed and insulated doors located on the west partition wall. The air -conditioning sys tem on this leased...

Khattar, M. K.; Keebaugh, D.

1987-01-01T23:59:59.000Z

194

Energy-efficient heat recovery systems for air conditioning of indoor swimming pools  

SciTech Connect (OSTI)

Analysis of a conventional air-conditioning system for indoor swimming pools during the summer season is presented. The analysis showed that the cooling load is characterized by a large latent heat fraction. As a result, a reheating process must be used downstream of the cooling coil to achieve the proper design comfort condition in the pool area. This, in turn, increases the energy requirement per unit cooling load of the pool. Two heat recovery systems are proposed to reduce this energy. In the first system, ambient air is used for the reheating process in an air-to-air heat exchanger. In the second system, mixed air--recirculated and ambient air--is used for the reheating process. Heat recovery efficiency is defined as an index of the energy savings resulting from the use of the heat recovery system compared to that of a conventional air-conditioning system. At a wide range of ambient conditions it is found that the energy savings could be up to 70% of the energy required to operate a conventional air-conditioning system. A parametric study was carried out to size the air-to-air heat exchanger associated with these heat recovery systems, and the results showed that a heat exchanger having an effectiveness of 0.5 would give satisfactory results. The proposed heat recovery systems are also compared to the case of reheating using the heat rejection from the condenser of the refrigeration machine. The comparison showed that the proposed systems save more energy than reheating using the condenser heat. A typical case study is given to demonstrate the savings in energy consumption when these systems are used.

Elsayed, M.M.; El-Refaee, M.M. [Kuwait Univ., Safat (Kuwait). Mechanical Engineering Dept.; Borhan, Y.A. [Gulf Engineering Co., Safat (Kuwait)

1997-12-31T23:59:59.000Z

195

Energy Efficient Design, Air Conditioning Correspondence to Author:  

E-Print Network [OSTI]

ABSTRACT: HVAC maintain both comfort and safety of indoor air quality. The challenge of maintaining high product quality while simultaneously reducing production costs can often be met through investments in energy efficient technologies and energy efficiency practices. The greatest opportunities for energy efficiency exist at the design stage for HVAC systems in new industrial facilities. By sizing components of HVAC systems generally include dampers, supply and exhaust fans, filters, humidifiers, dehumidifiers, heating and cooling coils, ducts, and various sensors properly and designing energy efficiency into a new facility, an industry can minimize the energy consumption and operational costs of its plant HVAC systems from the outset. Optimizing system design and operations, such as minimizing laboratory ventilation, can also lead to significant reductions in energy use. Energy efficiency improvement is an important way to reduce these costs and to increase predictable earnings, especially in times of high energy price volatility. There are a variety of opportunities available at individual plants in the industry to reduce energy consumption in a cost-effective manner.

Parth Patel; Parth Patel

196

Application of the VRV Air-Conditioning System Heat Recovery Series in Interior Zone and Analysis of its Energy Saving  

E-Print Network [OSTI]

To reduce the energy consumption of air conditioning systems, we can use the VRV air conditioning system to supply cold loads in the winter for rooms in the construction inner zone where cold loads need to be supplied. The VRV air-conditioning...

Zhang, Q.; Li, D.; Zhang, J.

2006-01-01T23:59:59.000Z

197

A comparison between the use of natural air and air containing ozone in conditioning farm products  

E-Print Network [OSTI]

H3 Ave, Air Volume& Otme 42EOO 52e98 45e 66 46e48 40, 65 56, 64 47, 31 48, 20 43. 65 51, 66 48. 99 48, 10 55. 98 52e98 42 00 50. 32 39EOO 41e31 41e 64 COe 65 39EOO 41, 25 41. 64 40. 63 , tatio Pressures In, H. C. ~ 4...

Wilkes, Lambert Henry

1953-01-01T23:59:59.000Z

198

Culvert Retrofit Testing  

E-Print Network [OSTI]

water flow conditions and to relate fish passage success tocondition. Backwatering influences passage success throughsuccess at 1.5 cfs is not a function of baffling conditions,

May, Christopher; Thom, Ron

2007-01-01T23:59:59.000Z

199

Exterior Insulation and Overclad Retrofits  

Broader source: Energy.gov (indexed) [DOE]

Exterior Insulation & Overclad Exterior Insulation & Overclad Retrofits Residential Energy Efficiency Stakeholder Meeting March 2, 2012 - Austin, TX Residential Energy Efficiency Stakeholder Meeting March 2, 2012 | Austin, TX 2  Incredible practical experience:  New construction - nearly a century  Retrofit applications - many decades Exterior Insulation Residential Energy Efficiency Stakeholder Meeting March 2, 2012 | Austin, TX 3 1980s ON - a "weird" builder Residential Energy Efficiency Stakeholder Meeting March 2, 2012 | Austin, TX 4 1990s ON - a "good" builder Residential Energy Efficiency Stakeholder Meeting March 2, 2012 | Austin, TX 5 2000s ON - a "typical" builder Residential Energy Efficiency Stakeholder Meeting March 2, 2012 | Austin, TX 6

200

Monitoring the Performance of a Residential Central Air Conditioner under Degraded Conditions on a Test Bench  

E-Print Network [OSTI]

valve increases. PREDICTION OF DEGRADED CONDITIONS There are several steady state simulation programs which are available to predict the design conditions of air conditioners and heat pumps [20, 21]. The ORNL and NIST models are popular and extensively... used in industry. Farzad modified ORNL model using NIST subroutines to simulate heat exchangers in a better fashion through tube-by-tube simulation [22]. Katipamula modified TRPUMP [TRansient PUMP, 23] to simulate transient conditions to elucidate about...

Palani, M.; O'Neal, D. L.; Haberl, J. S.

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Analysis of historical residential air-conditioning equipment sizing using monitored data  

SciTech Connect (OSTI)

Monitored data were analyzed to determine whether residential air conditioners in the Pacific Northwest historically have been sized properly to meet or slightly exceed actual cooling requirements. Oversizing air-conditioning equipment results in a loss of efficiency because of increased cycling and also lowers humidity control. On the other hand, the penalty of undersizing air-conditioning equipment may be some loss of comfort during extremely hot weather. The monitored data consist of hourly space-conditioning electrical energy use and internal air temperature data collected during the past 7 years from 75 residences in the Pacific Northwest. These residences are equipped with central air conditioners or heat pumps. The periods with the highest cooling energy use were analyzed for each site. A standard industry sizing methodology was used for each site to determine a sizing estimate. Both the sizing recommendation based on Manual J and peak monitored loads are compared to the capacity of the installed equipment for each site to study how the actual capacity differed from both the estimate of proper sizing and from actual demands. Characteristics of the maximum cooling loads are analyzed here to determine which conditions put the highest demand on the air conditioner. Specifically, internal air temperature data are used to determine when the highest cooling loads occur, at constant thermostat settings or when the thermostat was set down. This analysis of monitored data also provides insight into the extent that occupant comfort may be affected by undersizing air conditioners. The findings of this research indicate that cooling equipment historically has often but not always been oversized beyond industry-recommended levels. However, some occupants in homes with undersized, properly sized, and, in rare occasions, even oversized cooling equipment appear to suffer because the cooling equipment cannot always provide adequate cooling. Key findings are summarized.

Lucas, R.G.

1993-02-01T23:59:59.000Z

202

A dynamic model for air-based photovoltaic thermal systems working under real operating conditions  

Science Journals Connector (OSTI)

Abstract In this paper a dynamic model suitable for simulating real operating conditions of air-based photovoltaic thermal (PVT) systems is presented. The performance of the model is validated by using the operational data collected from the building integrated photovoltaic (PVT) systems installed in two unique buildings. The modelled air outlet temperature and electrical power match very well with the experimental data. In Solar Decathlon house PVT, the average (RMS) error in air outlet temperatures was 4.2%. The average (RMS) error in electrical power was also 4.2%. In the Sustainable Buildings Research Centre PVT, the average errors (RMS) of PV and air temperatures were 3.8% and 2.2%, respectively. The performance of the PVT system under changing working condition is also analysed in this paper. The analysis includes the effect of ambient air temperature, air inlet temperature, air flow rate and solar irradiation on thermal, electrical, first law and second law efficiencies. Both the thermal and the 1st law efficiencies almost linearly increased with the increase of the ambient temperature. However, the PVT electrical efficiency and the second law efficiency decreased with the increase of the ambient temperature. All efficiencies expect the second law efficiency decreased with increase of the PVT air inlet temperature. The second law efficiency first increased and then reduced. With increasing the air flow rate all the efficiencies increased. The electrical and second law efficiencies become less sensitive when the air flow rate exceeded 300l/s. Both the thermal and the 1st law efficiencies decreased while the electrical efficiency and the second law efficiency increased with the increase of the solar irradiation. The efficiencies found to be very sensitive for low level of solar irradiations. At about 400Wm?2 irradiation efficiencies became less sensitive.

M. Imroz Sohel; Zhenjun Ma; Paul Cooper; Jamie Adams; Robert Scott

2014-01-01T23:59:59.000Z

203

Data Center Airflow Management Retrofit  

Broader source: Energy.gov [DOE]

Case study bulletin describes the data center airflow management retrofit. The study includes information about how the data center energy densities (measured in power-use per square foot), increase energy savings for cooling, and how it can be realized by optimizing airflow pathways within the data center.

204

Sunnyvale Marine Climate Deep Retrofit  

SciTech Connect (OSTI)

The Alliance for Residential Building Innovation (ARBI) and Allen Gilliland of One Sky Homes collaborated on a marine climate retrofit project designed to meet both Passive House (PH) and Building America (BA) program standards. The scope included sealing, installing wall, roof and floor insulation (previously lacking), replacing windows, upgrading the heating and cooling system, and installing.

German, A.; Siddiqui, A.; Dakin, B.

2014-11-01T23:59:59.000Z

205

Demonstration and Testing of ClimaStat for Improved Rooftop Air-Conditioning Efficeincy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Demonstration and Testing of ClimaStat® for Improved Rooftop Air-Conditioning Efficiency Presented at IA Technology Deployment Working Group Meeting March 15, 2012 By Dan Howett, PE Oak Ridge National Laboratory Demonstration/Testing of ClimaStat ® for Improved Efficiency of RTU Air Conditioners * Technology from Advantek Consulting - Patented by Dr. Michael West in 2003. (US Patent #6427454) - Originally demonstrated under DOE's Inventions & Innovations program. * Current demonstration sponsored by DOD's ESTCP program * Uses off-the-shelf components to either... - Modify existing packaged air conditioners, or - Incorporate changes into new RTU equipment before installation * Initial tests show 15% improvement in HVAC efficiency.

206

Demonstration and Testing of ClimaStat for Improved Rooftop Air-Conditioning Efficeincy  

Broader source: Energy.gov (indexed) [DOE]

Demonstration and Testing of ClimaStat® for Improved Rooftop Air-Conditioning Efficiency Presented at IA Technology Deployment Working Group Meeting March 15, 2012 By Dan Howett, PE Oak Ridge National Laboratory Demonstration/Testing of ClimaStat ® for Improved Efficiency of RTU Air Conditioners * Technology from Advantek Consulting - Patented by Dr. Michael West in 2003. (US Patent #6427454) - Originally demonstrated under DOE's Inventions & Innovations program. * Current demonstration sponsored by DOD's ESTCP program * Uses off-the-shelf components to either... - Modify existing packaged air conditioners, or - Incorporate changes into new RTU equipment before installation * Initial tests show 15% improvement in HVAC efficiency.

207

A diffusion approximation approach to stochastic modeling of air conditioning type loads  

E-Print Network [OSTI]

that the air conditioning unit is on and off. In the followino equations, TNIN and TNAX are the lower and upper limit temperatures of the thermostat deadband and To is the outside temperature. Gi 2Gw To Tw Cw Ci $ QeXt To - outside temperature Tw - wall... temperature Ti - inside temperature Gw ? thermal conductance of wall Gi - thermal conductance of air Cw - thermal capacitance of wall Ci ? thermal capacitance of air Qe - rated capacity of cooling unit Xt - zero-one process describing the switching...

Roy, Teresa Henryka

1981-01-01T23:59:59.000Z

208

Influence Of Upper Air Conditions On The Patagonia Icefields L. A. Rasmussen, H. Conway, C. F. Raymond  

E-Print Network [OSTI]

Influence Of Upper Air Conditions On The Patagonia Icefields L. A. Rasmussen, H. Conway, C. F, Second Fig ABSTRACT. Upper-air conditions archived in the NCEP-NCAR Reanalysis have been used cannot be determined, so the investigation is limited to examining relative changes in those upper air

Rasmussen, L.A.

209

Retrofit Existing Buildings | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Retrofit Existing Buildings Retrofit Existing Buildings Retrofit Existing Buildings Photo of the Denver skyline with Wells Fargo Center building in the center of the image and the Rocky Mountains in the background. Renovation, retrofit and refurbishment of existing buildings represent an opportunity to upgrade the energy performance of commercial building assets for their ongoing life. Often retrofit involves modifications to existing commercial buildings that may improve energy efficiency or decrease energy demand. In addition, retrofits are often used as opportune time to install distributed generation to a building. Energy efficiency retrofits can reduce the operational costs, particularly in older buildings, as well as help to attract tenants and gain a market edge. The Building Technologies Office provides resources that allow planners,

210

Table HC15.7 Air-Conditioning Usage Indicators by Four Most Populated States, 2005  

U.S. Energy Information Administration (EIA) Indexed Site

7 Air-Conditioning Usage Indicators by Four Most Populated States, 2005 7 Air-Conditioning Usage Indicators by Four Most Populated States, 2005 Total.................................................................................. 111.1 7.1 7.0 8.0 12.1 Do Not Have Cooling Equipment.................................... 17.8 1.8 Q Q 4.9 Have Cooling Equipment................................................. 93.3 5.3 7.0 7.8 7.2 Use Cooling Equipment.................................................. 91.4 5.3 7.0 7.7 6.6 Have Equipment But Do Not Use it................................ 1.9 Q N Q 0.6 Type of Air-Conditioning Equipment 1, 2 Central System............................................................. 65.9 1.1 6.4 6.4 5.4 Without a Heat Pump................................................. 53.5 1.1 3.5 5.7 4.9 With a Heat Pump......................................................

211

State-of-the-Art Thermal Energy Storage Retrofit at a Large Manufacturing Facility  

E-Print Network [OSTI]

This paper will describe the existing conditions, strategic planning, feasibility study, economic analysis, design, specification, construction, and project management for the 2.9 megawatt full shift chilled water thermal energy storage retrofit...

Fiorino, D.

212

Building America Webinar: Retrofitting Central Space Conditioning...  

Broader source: Energy.gov (indexed) [DOE]

strategies and the evaluation of thermostatically controlled radiator valves (TRVs). Jordan Dentz and Hugh Henderson, Advanced Residential Integrated Energy Solutions (ARIES),...

213

Effects of diesel particle filter retrofits and accelerated fleet turnover  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Effects of diesel particle filter retrofits and accelerated fleet turnover Effects of diesel particle filter retrofits and accelerated fleet turnover on drayage truck emissions at the port of Oakland Title Effects of diesel particle filter retrofits and accelerated fleet turnover on drayage truck emissions at the port of Oakland Publication Type Journal Article Year of Publication 2011 Authors Dallmann, Timothy R., Robert A. Harley, and Thomas W. Kirchstetter Journal Environmental Science & Technology Volume 45 Issue 24 Pagination 10773-10779 Abstract Heavy-duty diesel drayage trucks have a disproportionate impact on the air quality of communities surrounding major freight-handling facilities. In an attempt to mitigate this impact, the state of California has mandated new emission control requirements for drayage trucks accessing ports and rail yards in the state beginning in 2010. This control rule prompted an accelerated diesel particle filter (DPF) retrofit and truck replacement program at the Port of Oakland. The impact of this program was evaluated by measuring emission factor distributions for diesel trucks operating at the Port of Oakland prior to and following the implementation of the emission control rule. Emission factors for black carbon (BC) and oxides of nitrogen (NOx) were quantified in terms of grams of pollutant emitted per kilogram of fuel burned using a carbon balance method. Concentrations of these species along with carbon dioxide were measured in the exhaust plumes of individual diesel trucks as they drove by en route to the Port. A comparison of emissions measured before and after the implementation of the truck retrofit/replacement rule shows a 54 ± 11% reduction in the fleet-average BC emission factor, accompanied by a shift to a more highly skewed emission factor distribution. Although only particulate matter mass reductions were required in the first year of the program, a significant reduction in the fleet-average NOx emission factor (41 ± 5%) was observed, most likely due to the replacement of older trucks with new ones.

214

National Grid Deep Energy Retrofit Pilot, Massachusetts and Rhode Island (Fact Sheet)  

SciTech Connect (OSTI)

Between December, 2009 and December, 2012 42 deep energy retrofit (DER) projects were completed through a DER pilot program sponsored by National Grid and conducted in Massachusetts and Rhode Island. 37 of these projects were comprehensive retrofits while 5 were partial DERs, meaning that high performance retrofit was implemented for a single major enclosure component or a limited number of major enclosure components. The 42 DER projects represent 60 units of housing. The comprehensive projects all implemented a consistent "package" of measures in terms of the performance targeted for major building components. Projects exhibited some variations in the approach to implementing the retrofit package. Pre- and post-retrofit air leakage measurements were performed for each of the projects. Each project also reported information about project costs including identification of energy-related costs. Post-retrofit energy-use data was obtained for 29 of the DER projects. Post-retrofit energy use was analyzed based on the net energy used by the DER project regardless of whether the energy was generated on site or delivered to the site. Homeowner surveys were returned by 12 of the pilot participants. Based on the community experience, this DER package is expected to result in yearly source energy use near 110 MMBtu/year or approximately 40% below the Northeast regional average. Larger to medium sized homes that successful implement these retrofits can be expected to achieve source EUI that is comparable to Passive House targets for new construction. The community of DER projects show post-retrofit airtightness below 1.5 ACH50 to be eminently achievable.

Not Available

2014-03-01T23:59:59.000Z

215

Performance Results for Massachusetts and Rhode Island Deep Energy Retrofit Pilot Community  

SciTech Connect (OSTI)

Between December, 2009 and December, 2012 42 deep energy retrofit (DER) projects were completed through a DER pilot program sponsored by National Grid and conducted in Massachusetts and Rhode Island. 37 of these projects were comprehensive retrofits while 5 were partial DERs, meaning that high performance retrofit was implemented for a single major enclosure component or a limited number of major enclosure components. The 42 DER projects represent 60 units of housing. The comprehensive projects all implemented a consistent 'package' of measures in terms of the performance targeted for major building components. Projects exhibited some variations in the approach to implementing the retrofit package. Pre- and post-retrofit air leakage measurements were performed for each of the projects. Each project also reported information about project costs including identification of energy-related costs. Post-retrofit energy-use data was obtained for 29 of the DER projects. Post-retrofit energy use was analyzed based on the net energy used by the DER project regardless of whether the energy was generated on site or delivered to the site. Homeowner surveys were returned by 12 of the pilot participants. Based on the community experience, this DER package is expected to result in yearly source energy use near 110 MMBtu/year or approximately 40% below the Northeast regional average. Larger to medium sized homes that successful implement these retrofits can be expected to achieve source EUI that is comparable to Passive House targets for new construction. The community of DER projects show post-retrofit airtightness below 1.5 ACH50 to be eminently achievable.

Gates, C.; Neuhauser, K.

2014-03-01T23:59:59.000Z

216

Innovative Evaporative and Thermally Activated Technologies Improve Air Conditioning, The Spectrum of Clean Energy Innovation (Fact Sheet)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Innovative Evaporative and Innovative Evaporative and Thermally Activated Technologies Improve Air Conditioning Researchers at the National Renewable Energy Laboratory (NREL) invented a breakthrough technology that improves air conditioning in a novel way-with heat. NREL combined desiccant materials, which remove moisture from the air using heat, and advanced evaporative technologies to develop a cooling unit that uses 90% less electricity and up to 80% less total energy than traditional air conditioning (AC). This solution, called the desiccant enhanced evaporative air conditioner (DEVap), also controls humidity more effectively to improve the comfort of people in buildings. Desiccants are an example of a thermally activated technology (TAT) that relies on heat instead

217

Aggregated Modeling and Control of Air Conditioning Loads for Demand Response  

E-Print Network [OSTI]

1 Aggregated Modeling and Control of Air Conditioning Loads for Demand Response Wei Zhang, Member, IEEE Abstract--Demand response is playing an increasingly impor- tant role in the efficient loads is especially important to evaluate the effec- tiveness of various demand response strategies

Zhang, Wei

218

Theoretical Study of a Novel Control Method of VAV Air-conditioning System Based on MATLAB  

E-Print Network [OSTI]

ICEBO2006, Shenzhen, China Control Systems for Energy Efficiency and Comfort, Vol. V-2-2 Theoretical Study of a Novel Control Method of VAV Air-conditioning System Based on MATLAB Zhigang Shi Songtao Hu Gang Wang Angui Li Xi?An University...

Shi, Z.; Hu, S.; Wang, G.; Li, A.

2006-01-01T23:59:59.000Z

219

CFD Simulation and Analysis of the Combined Evaporative Cooling and Radiant Ceiling Air-conditioning System  

E-Print Network [OSTI]

, and the ceiling cooling system deals with the other part of sensible loads in the air-conditioned zone, so that the condensation on radiant panels and the insufficiency of cooling capacity can be avoided. The cooling water at 18? used in the cooling coils...

Xiang, H.; Yinming, L.; Junmei, W.

2006-01-01T23:59:59.000Z

220

Smart Operations of Air-Conditioning and Lighting Systems in Government Buildings for Peak Power Reduction  

E-Print Network [OSTI]

During the summer 2007 smart operation strategies for air-conditioning (A/C) and lighting systems were developed and tested in a number of governmental buildings in Kuwait as one of the solutions to reduce the national peak demand for electrical...

Al-Hadban, Y.; Maheshwari, G. P.; Al-Nakib, D.; Al-Mulla, A.; Alasseri, R.

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

A heuristic predictive logic controller applied to hybrid solar air conditioning plant  

Science Journals Connector (OSTI)

This paper shows the development of a heuristic predictive logic controller (HPLoC) applied to a solar air conditioning plant. The plant uses two energy sources, solar and gas, in order to warm up the water. The hot water feeds a single-effect absorption ...

Darine Zambrano; Winston Garca-Gabn; Eduardo F. Camacho

2007-04-01T23:59:59.000Z

222

Experimental Tests and Predictive Model of an Adsorptive Air Conditioning Unit  

Science Journals Connector (OSTI)

An adsorption air conditioning unit has been built operating with a heat and mass recovery cycle and a zeolite?water pair. A new consolidated adsorbent composite with good heat transfer properties has been developed and implemented in the adsorber. At an ...

Florence Poyelle; Jean-Jacques Guilleminot; Francis Meunier

1998-12-08T23:59:59.000Z

223

Retrofit for Plastic Resin Driers  

E-Print Network [OSTI]

RETROFIT FOR PLASTIC RESIN DRIERS BABU JOSEPH PH.D. Supervising Engineer Southern California Edison Company, Irwindale, California GEORGE THURO Thuro, & Associates, Costa Mesa, California Plastic resins used in injection molding have... installation of dew point meters and a programmable controller to tailor the regeneration cycle to the required dew point temperature. Background It was estimated that there are about 450 plastic processors in the Southern California Edison service...

Joseph, B.; Thuro, G.

224

News From the D.C. Office: Integrated Chiller Retrofits-Sharing Experience  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 Aerial view of Washington D.C. 3 Aerial view of Washington D.C. News From the D.C. Office Integrated Chiller Retrofits: Sharing Experience Makes "Cool Sense" A recent issue of the Center for Building Science News [Spring 1996, p.2] described the opportunities for significant energy savings from replacing older, inefficient chillers. These savings can be increased greatly if building owners and managers approach the chiller replacement not just as a requirement, but also as an opportunity-that of investing in other energy-saving measures that reduce cooling loads and lead to the downsizing of the chiller and related equipment. The Air-Conditioning and Refrigeration Institute estimates that 80,000 existing chillers using CFC refrigerants need to be replaced or converted to use HCFC or HFC refrigerants. Of these, about 20,000 will be replaced or

225

Comment submitted by the Air Conditioning, Heating and Refrigeration Institute (AHRI) regarding the Energy Star Verification Testing Program  

Broader source: Energy.gov [DOE]

This document is a comment submitted by the Air Conditioning, Heating and Refrigeration Institute (AHRI) regarding the Energy Star Verification Testing Program

226

Study of solar-assisted thermoelectric technology for automobile air conditioning  

SciTech Connect (OSTI)

An analytical study was conducted to determine the feasibility of employing solar energy assisted thermoelectric (TE) cooling technology in automobile air conditioners. The study addressed two key issues -- power requirements and availability of thermoelectric materials. In this paper a mathematical model was developed to predict the performance of TE air conditioners and to analyze power consumption. Results show that the power required to deliver a cooling capacity of 4 kW (13,680 Btu/h) in a 38 C (100 F) environment will be 9.5 kW electric. Current TE modules suitable for air conditioning are made of bismuth telluride. The element tellurium is expected to be in short supply if TE cooling is widely implemented for auto air conditioning; some options available in this regard were studied and presented in this paper. The photovoltaic (PV) cells, assumed to cover the roof area of a compact car can only generate about 225 W. However, this is more than enough to power a fan to provide air ventilation to the car interior which significantly reduces the peak cooling load when the car is parked in bright sunlight.

Mei, V.C.; Chen, F.C. [Oak Ridge National Lab., Oak Ridge, TN (United States); Mathiprakasam, B.; Heenan, P. [Midwest Research Inst., Kansas City, MO (United States)

1993-11-01T23:59:59.000Z

227

Effect of Intake Air Filter Condition on Light-Duty Gasoline Vehicles  

SciTech Connect (OSTI)

Proper maintenance can help vehicles perform as designed, positively affecting fuel economy, emissions, and the overall drivability. This effort investigates the effect of one maintenance factor, intake air filter replacement, with primary focus on vehicle fuel economy, but also examining emissions and performance. Older studies, dealing with carbureted gasoline vehicles, have indicated that replacing a clogged or dirty air filter can improve vehicle fuel economy and conversely that a dirty air filter can be significantly detrimental to fuel economy. The effect of clogged air filters on the fuel economy, acceleration and emissions of five gasoline fueled vehicles is examined. Four of these were modern vehicles, featuring closed-loop control and ranging in model year from 2003 to 2007. Three vehicles were powered by naturally aspirated, port fuel injection (PFI) engines of differing size and cylinder configuration: an inline 4, a V6 and a V8. A turbocharged inline 4-cylinder gasoline direct injection (GDI) engine powered vehicle was the fourth modern gasoline vehicle tested. A vintage 1972 vehicle equipped with a carburetor (open-loop control) was also examined. Results reveal insignificant fuel economy and emissions sensitivity of modern vehicles to air filter condition, but measureable effects on the 1972 vehicle. All vehicles experienced a measured acceleration performance penalty with clogged intake air filters.

Thomas, John F [ORNL] [ORNL; Huff, Shean P [ORNL] [ORNL; West, Brian H [ORNL] [ORNL; Norman, Kevin M [ORNL] [ORNL

2012-01-01T23:59:59.000Z

228

Retrofit Ventilation Strategies in Multifamily Buildings Webinar...  

Energy Savers [EERE]

Retrofit of Mass Masonry Wall Assemblies Building America Technlogy Solutions for New and Existing Homes: Interior Foundation Insulation Upgrade - Madison Residence (Fact Sheet)...

229

INSTALLATION CERTIFICATE CF-6R-MECH-08 Ice Storage Air Conditioning (ISAC) Units (Page 1 of 2)  

E-Print Network [OSTI]

cooling with the compressor). Yes No #12;INSTALLATION CERTIFICATE CF-6R-MECH-08 Ice Storage AirINSTALLATION CERTIFICATE CF-6R-MECH-08 Ice Storage Air Conditioning (ISAC) Units (Page 1 of 2) Site Address: Enforcement Agency: Permit Number: 2008 Residential Compliance Forms August 2009 Ice Storage Air

230

A Methodology to Measure Retrofit Energy Savings in Commercial Buildings  

E-Print Network [OSTI]

Measured energy savings promote and sustain energy conservation retrofits by verifying the success of retrofits, determining pay-back schedules, guiding the selection of future retrofits and identifying opportunities for further savings...

Kissock, John Kelly

2008-01-16T23:59:59.000Z

231

An Experimental and Analytical Evaluation of Wall And Window Retrofit Configurations: Supporting the Residential Retrofit Best Practices Guide  

SciTech Connect (OSTI)

A Retrofit Best Practices Guide was developed to encourage homeowners to consider energy conservation issues whenever they modify their siding or windows. In support of this guide, an experimental program was implemented to measure the performance of a number of possible wall siding and window retrofit configurations. Both thermal and air-leakage measurements were made for a 2.4 x 2.4 m (8 x 8 ft) wall section with and without a 0.9 x 1.2 m (3 x 4 ft) window. The windows tested were previously well-characterized at a dedicated window test facility. A computer model was also used to provide information for the Best Practices Guide. The experimental data for walls and windows were used in conjunction with this model to estimate the total annual energy savings for several typical houses in a number of different locations.

Stovall, Therese K [ORNL; Petrie, Thomas [ORNL; Kosny, Jan [ORNL; Childs, Phillip W [ORNL; Atchley, Jerald Allen [ORNL; Hulvey, Kimberly D [ORNL

2007-11-01T23:59:59.000Z

232

Laboratory Testing of Aerosol for Enclosure Air Sealing  

SciTech Connect (OSTI)

Space conditioning energy use can be significantly reduced by addressing uncontrolled infiltration and exfiltration through the envelope of a building. A process for improving the air tightness of a building envelope by sealing shell leaks with an aerosol sealing technology is presented. Both retrofit and new construction applications are possible through applying this process either in attics and crawlspaces or during rough-in stage.

Harrington, C.; Modera, M.

2012-05-01T23:59:59.000Z

233

Energy Efficiency Upgrades for Little Rock Air Force Base  

SciTech Connect (OSTI)

Little Rock Air Force Base (LRAFB), in partnership with the local utility, Entergy Services, Inc., has reduced energy costs and used savings from investments in high-efficiency equipment to maintain and improve the condition of base housing and other facilities. Three projects were completed, with over $10 million invested. Major accomplishments include replacing air-to-air heat pumps with high-efficiency ground-source heat pumps (GSHPs) in more than 1,500 base housing units, lighting modifications to 10 buildings, upgrade of HVAC equipment in the base's enlisted club, and energy-efficient lighting retrofits for LRAFB's flight simulator.

Goldman, C.; Dunlap, M.A.

2000-11-13T23:59:59.000Z

234

SCR & DPF RETROFITS FOR MOBILE DIESEL ENGINES | Department of...  

Broader source: Energy.gov (indexed) [DOE]

SCR & DPF RETROFITS FOR MOBILE DIESEL ENGINES SCR & DPF RETROFITS FOR MOBILE DIESEL ENGINES 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters...

235

Building America Expert Meeting Report: Interior Insulation Retrofit...  

Broader source: Energy.gov (indexed) [DOE]

Interior Insulation Retrofit of Mass Masonry Wall Assembliesessment of risk factors for premature building deterioration due to interior insulation retrofits, and methods to reduce...

236

Transportation Refrigeration Unit (TRU) Retrofit with HUSS Active...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Transportation Refrigeration Unit (TRU) Retrofit with HUSS Active Diesel Particulate Filters Transportation Refrigeration Unit (TRU) Retrofit with HUSS Active Diesel Particulate...

237

Advanced Critical Advanced Energy Retrofit Education and Training...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Critical Advanced Energy Retrofit Education and Training and Credentialing - 2014 BTO Peer Review Advanced Critical Advanced Energy Retrofit Education and Training and...

238

Low-Flow Liquid Desiccant Air-Conditioning: Demonstrated Performance and Cost Implications  

SciTech Connect (OSTI)

Cooling loads must be dramatically reduced when designing net-zero energy buildings or other highly efficient facilities. Advances in this area have focused primarily on reducing a building's sensible cooling loads by improving the envelope, integrating properly sized daylighting systems, adding exterior solar shading devices, and reducing internal heat gains. As sensible loads decrease, however, latent loads remain relatively constant, and thus become a greater fraction of the overall cooling requirement in highly efficient building designs, particularly in humid climates. This shift toward latent cooling is a challenge for heating, ventilation, and air-conditioning (HVAC) systems. Traditional systems typically dehumidify by first overcooling air below the dew-point temperature and then reheating it to an appropriate supply temperature, which requires an excessive amount of energy. Another dehumidification strategy incorporates solid desiccant rotors that remove water from air more efficiently; however, these systems are large and increase fan energy consumption due to the increased airside pressure drop of solid desiccant rotors. A third dehumidification strategy involves high flow liquid desiccant systems. These systems require a high maintenance separator to protect the air distribution system from corrosive desiccant droplet carryover and so are more commonly used in industrial applications and rarely in commercial buildings. Both solid desiccant systems and most high-flow liquid desiccant systems (if not internally cooled) add sensible energy which must later be removed to the air stream during dehumidification, through the release of sensible heat during the sorption process.

Kozubal, E.; Herrmann, L.; Deru, M.; Clark, J.; Lowenstein, A.

2014-09-01T23:59:59.000Z

239

Development of a high efficiency compressor/expander for an air cycle air conditioning system. Final report  

SciTech Connect (OSTI)

This document presents the methods and procedures used and the results obtained in the design, fabrication, and testing of a rotary vane type compressor operated on air cycle thermodynamics. The history and results of the testing of a similar expander are summarized and the full report of that work is referenced. The machine design used was based on one patented by Ecton Corporation. The goal of the reported effort was to demonstrate the attainable efficiencies of these machines. Appropriate test rigs were assembled and the machines were tested at various operating conditions. The compressor testing did not achieve the full design speed because of time constraints but important data was obtained at 87% speed (3000 rpm). The maximum measured total efficiencies were 78% for the expander and 71% for the compressor. Various design improvements which may yield improved performance were identified and reported.

Summers, R.L.; Smolinski, R.E.

1982-11-15T23:59:59.000Z

240

Case study field evaluation of a systems approach to retrofitting a residential HVAC system  

SciTech Connect (OSTI)

This case study focusing on a residence in northern California was undertaken as a demonstration of the potential of a systems approach to HVAC retrofits. The systems approach means that other retrofits that can affect the HVAC system are also considered. For example, added building envelope insulation reduces building loads so that smaller capacity HVAC system can be used. Secondly, we wanted to examine the practical issues and interactions with contractors and code officials required to accomplish the systems approach because it represents a departure from current practice. We identified problems in the processes of communication and installation of the retrofit that led to compromises in the final energy efficiency of the HVAC system. These issues must be overcome in order for HVAC retrofits to deliver the increased performance that they promise. The experience gained in this case study was used to optimize best practices guidelines for contractors (Walker 2003) that include building diagnostics and checklists as tools to assist in ensuring the energy efficiency of ''house as a system'' HVAC retrofits. The best practices guidelines proved to be an excellent tool for evaluating the eight existing homes in this study, and we received positive feedback from many potential users who reviewed and used them. In addition, we were able to substantially improve the energy efficiency of the retrofitted case study house by adding envelope insulation, a more efficient furnace and air conditioner, an economizer and by reducing duct leakage.

Walker, Iain S.; McWiliams, Jennifer A.; Konopacki, Steven J.

2003-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Adverse Health Effects of Air Pollution  

E-Print Network [OSTI]

on clean air: ? 2007: Encouraging energy efficiencies, no more coal plants ? 2009: Retrofitting old coal plants and old diesel engines ? 2011: Disclosure of ?fracking? fluids injected below ground ? Alliance with Texas Business for Clean Air ? Financed...

Haley, R. W.

2011-01-01T23:59:59.000Z

242

Energy Performance Comparison of Heating and Air Conditioning Systems for Multi-Family Residential Buildings  

SciTech Connect (OSTI)

The type of heating, ventilation and air conditioning (HVAC) system has a large impact on the heating and cooling energy consumption in multifamily residential buildings. This paper compares the energy performance of three HVAC systems: a direct expansion (DX) split system, a split air source heat pump (ASHP) system, and a closed-loop water source heat pump (WSHP) system with a boiler and an evaporative fluid cooler as the central heating and cooling source. All three systems use gas furnace for heating or heating backup. The comparison is made in a number of scenarios including different climate conditions, system operation schemes and applicable building codes. It is found that with the minimum code-compliant equipment efficiency, ASHP performs the best among all scenarios except in extremely code climates. WSHP tends to perform better than the split DX system in cold climates but worse in hot climates.

Wang, Weimin; Zhang, Jian; Jiang, Wei; Liu, Bing

2011-07-31T23:59:59.000Z

243

Numerical Analysis of Heat and Moisture Transfer in Underground Air-conditioning Systems  

E-Print Network [OSTI]

ICEBO2006, Shenzhen, China Maximize Comfort: Temperature, Humidity and IAQ Vol.I-6-3 Numerical Analysis of Heat and Moisture Transfer in Underground Air-conditioning Systems Qin Wang, Xiaoping Miao, Baoyi Cheng, Liangkai Fan EIEC, PLA...]. Youming Chen, Shengwei Wang, Ling Zhang. Application of System Identification of Hygrothermal Process in Buildings [M]. Construction and Industry Publishing Company in China, Beijing, 2004. [7]. J.R. Philip, D.A. de Vries. Moisture Movement in Porous...

Wang, Q.; Miao, X.; Cheng, B.; Fan, L.

2006-01-01T23:59:59.000Z

244

Identification of the Flow Resistance Coefficient and Validation of a Building Air Conditioning System  

E-Print Network [OSTI]

for HRC estimation is investigated in this paper. And some conclusions can be got as follows: 1) The MGO method is applicable for S value identification. The method is based on the principle for multi goal optimization. The process can be widely used...ICEBO2006, Shenzhen, China HVAC Technologies for Energy Efficiency, Vol. IV-11-2 Zhijian Hou Identification of the Flow Resistance Coefficient and Validation of a Building Air Conditioning System Zhiwei Lian...

Hou, Z.; Lian, Z.

2006-01-01T23:59:59.000Z

245

Airflow Simulation and Energy Analysis in Ventilated Room with a New Type of Air Conditioning  

E-Print Network [OSTI]

quality will be achieved. Our study aims to simulate airflow in the ventilated room with this new type of air conditioning. Radiation is taken into account by the energy conservation in the system. The following section presents algorithm, thermal..., the governing equations to be solved are the conservation equations for continuity, momentum, and energy as well as the equations for turbulent kinetic energy and its dissipation rate. The buoyancy effect is accounted for by Boussinesq approximation...

Liu, D.; Tang, G.; Zhao, F.

2006-01-01T23:59:59.000Z

246

Table HC6.7 Air-Conditioning Usage Indicators by Number of Household Members, 2005  

U.S. Energy Information Administration (EIA) Indexed Site

7 Air-Conditioning Usage Indicators by Number of Household Members, 2005 7 Air-Conditioning Usage Indicators by Number of Household Members, 2005 Total........................................................................ 111.1 30.0 34.8 18.4 15.9 12.0 Do Not Have Cooling Equipment.......................... 17.8 5.4 5.3 2.7 2.5 2.0 Have Cooling Equipment...................................... 93.3 24.6 29.6 15.7 13.4 10.0 Use Cooling Equipment....................................... 91.4 24.0 29.1 15.5 13.2 9.7 Have Equipment But Do Not Use it...................... 1.9 0.6 0.5 Q 0.2 0.4 Type of Air-Conditioning Equipment 1, 2 Central System................................................... 65.9 15.3 22.6 10.7 9.9 7.3 Without a Heat Pump....................................... 53.5 12.5 17.9 8.7 8.2 6.3 With a Heat Pump............................................ 12.3

247

Table HC9.6 Air Conditioning Characteristics by Climate Zone, 2005  

U.S. Energy Information Administration (EIA) Indexed Site

6 Air Conditioning Characteristics by Climate Zone, 2005 6 Air Conditioning Characteristics by Climate Zone, 2005 Million U.S. Housing Units Total......................................................................... 111.1 10.9 26.1 27.3 24.0 22.8 Do Not Have Cooling Equipment........................... 17.8 3.2 4.7 3.6 5.5 0.9 Have Cooling Equipment........................................ 93.3 7.7 21.4 23.7 18.5 21.9 Use Cooling Equipment......................................... 91.4 7.6 21.0 23.4 17.9 21.7 Have Equipment But Do Not Use it........................ 1.9 Q 0.4 0.4 0.6 0.3 Air-Conditioning Equipment 2, 3 Central System...................................................... 65.9 4.8 12.3 15.1 14.9 18.7 Without a Heat Pump......................................... 53.5 4.7 11.5 11.6 12.3 13.6 With a Heat Pump..............................................

248

A novel air-conditioning system for proactive power demand response to smart grid  

Science Journals Connector (OSTI)

Abstract Power demand response is considered as one of the most promising solutions in relieving the power imbalance of an electrical grid that results a series of critical problems to the gird and end-users. In order to effectively make use of the demand response potentials of buildings, this paper presents a novel air-conditioning system with proactive demand control for daily load shifting and real time power balance in the developing smart grid. This system consists of a chilled water storage system (CWS) and a temperature and humidity independent control (THIC) air-conditioning system, which can significantly reduce the storage volume of the chilled water tank and effectively enable a building with more flexibility in changing its electricity usage patterns. The power demand of the proposed air-conditioning system can be flexibly controlled as desired by implementing two types of demand response strategies: demand side bidding (DSB) strategy and demand as frequency controlled reserve (DFR) strategy, in respond to the day-ahead and hour-ahead power change requirements of the grid, respectively. Considerable benefits (e.g., energy and cost savings) can be achieved for both the electricity utilities and building owners under incentive pricing or tariffs. A case study is conducted in a simulation platform to demonstrate the application of the proposed system in an office building.

Chengchu Yan; Xue Xue; Shengwei Wang; Borui Cui

2014-01-01T23:59:59.000Z

249

Nine utilities offering cash, credit rebates for retrofits  

SciTech Connect (OSTI)

Businesses can obtain cash or credit rebates from at least nine utilities if they install energy-conservation equipment and, in some instances, thermal-storage retrofits. The rebate programs do not extend to residential users, who already have incentives. Utilities anticipate less need for new generating facilities if they can foster efficiency in the commercial, industrial, and institutional sectors. A chart summarizes and compares the rebate programs now available in eligibility requirements, equipment covered, and rebate rates and conditions. (DCK)

Mullin, R.

1983-11-28T23:59:59.000Z

250

Retrofit Energy Savings Estimation Model Reference Manual  

E-Print Network [OSTI]

Retrofit Energy Savings Estimation Model Reference Manual #12;#12;Retrofit Energy Savings commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does from the Department of Energy. Any conclusions or opinions expressed in this manual represent solely

251

Fluidized-bed retrofit a practical alternative to FGD  

SciTech Connect (OSTI)

When SO/sub 2/ emissions from an existing utility boiler must be reduced, retrofitting for fluidized-bed combustion may be an attractive alternative. In addition to reducing atmospheric pollutants during combustion, FBC retrofits allow simultaneous burning of a wide range of low-cost fuels. Also, since new components are incorporated in the steam generator rather than added on as pollution-control equipment, they extend the use of the plant beyond its normal life expectancy. There are five types of fossil-fuel-fired boilers used by utilities (pulverized coal, cyclone, stoker, oil, and gas), and literally hundreds of designs. Not all of these designs lend themselves to FBC retrofit, and much depends on the size and age of the boiler. Units that are not structurally sound or that have extensive internal corrosion are generally not suitable. Boilers over 150 MW usually have complicated water circuitry and small furnace plan areas, and may not have enough space to accommodate the fluidized bed. Other important considerations are: Water/steam-circulation design, Furnace bottom-to-grade clearance, Air-heater type and arrangement, Boiler support, Type of particulate-control device, Fan capacity, Space available in the boiler island for alterations.

Stringfellow, T.E.; Nolte, F.S.; Sage, W.L.

1984-02-01T23:59:59.000Z

252

Advanced Energy Retrofit Guides | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Retrofit Guides Retrofit Guides Advanced Energy Retrofit Guides Photo of the cover of the Advanced Energy Retrofit Guide for Healthcare Facilities. The Advanced Energy Retrofit Guides (AERGs) were created to help decision makers plan, design, and implement energy improvement projects in their facilities. With energy managers in mind, they present practical guidance for kick-starting the process and maintaining momentum throughout the project life cycle. These guides are primarily reference documents, allowing energy managers to consult the particular sections that address the most pertinent topics.. Useful resources are also cited throughout the guides for further information. Each AERG is tailored specifically to the needs of a specific building type, with an emphasis on the most effective

253

Effects of ambient humidity on the energy use of air conditioning equipment  

E-Print Network [OSTI]

economizer control with constant supply air temperature seteconomizer control with constant supply air temperature setcontrol under the constraint of constant supply air temperature

White, Justin George

2010-01-01T23:59:59.000Z

254

Need for Systematic Retrofit Analysis in Multifamily Buildings  

SciTech Connect (OSTI)

Multifamily housing offers high potential for energy savings through retrofits. A comprehensive energy audit with systematic evaluation of alternative energy measures is one of the key steps to realizing the full energy savings potential. However, this potential often remains unrealized when the selection of measures is (1) based on a one-size-fits-all approach originating from accustomed practices, (2) intended merely to meet code-compliance requirements, and/or (3) influenced by owner renter split incentive. In such cases, the benefits of comprehensive energy auditing are disregarded in view of the apparent difficulty in diagnosing multifamily buildings, evaluating alternative measures, and installing customized sets of measures. This paper highlights some of the barriers encountered in a multifamily housing retrofit project in Georgia and demonstrates the merits of systematic retrofit analysis by identifying opportunities for higher energy savings and improved comfort and indoor air quality that were missed in this project. The study uses a whole-building energy analysis conducted for a 10-unit, low-rise, multifamily building of a 110-unit apartment complex. The analysis projected a 24% energy savings from the measures installed in the building with a payback period of 10 years. Further analysis with a systematic evaluation of alternative measures showed that without compromising on the objectives of durability, livability, and appearance of the building, energy savings of up to 34% were achievable with a payback period of 7 years. The paper concludes by outlining recommendations that may benefit future retrofit projects by improving the audit process, streamlining tasks, and achieving higher energy savings.

Malhotra, Mini [ORNL; Im, Piljae [ORNL

2014-01-01T23:59:59.000Z

255

An Analysis of Price Determination and Markups in the Air-Conditioning and Heating Equipment Industry  

SciTech Connect (OSTI)

In this report we calculate the change in final consumer prices due to minimum efficiency standards, focusing on a standard economic model of the air-conditioning and heating equipment (ACHE) wholesale industry. The model examines the relationship between the marginal cost to distribute and sell equipment and the final consumer price in this industry. The model predicts that the impact of a standard on the final consumer price is conditioned by its impact on marginal distribution costs. For example, if a standard raises the marginal cost to distribute and sell equipment a small amount, the model predicts that the standard will raise the final consumer price a small amount as well. Statistical analysis suggest that standards do not increase the amount of labor needed to distribute equipment the same employees needed to sell lower efficiency equipment can sell high efficiency equipment. Labor is a large component of the total marginal cost to distribute and sell air-conditioning and heating equipment. We infer from this that standards have a relatively small impact on ACHE marginal distribution and sale costs. Thus, our model predicts that a standard will have a relatively small impact on final ACHE consumer prices. Our statistical analysis of U.S. Census Bureau wholesale revenue tends to confirm this model prediction. Generalizing, we find that the ratio of manufacturer price to final consumer price prior to a standard tends to exceed the ratio of the change in manufacturer price to the change in final consumer price resulting from a standard. The appendix expands our analysis through a typical distribution chain for commercial and residential air-conditioning and heating equipment.

Dale, Larry; Millstein, Dev; Coughlin, Katie; Van Buskirk, Robert; Rosenquist, Gregory; Lekov, Alex; Bhuyan, Sanjib

2004-01-30T23:59:59.000Z

256

E-Print Network 3.0 - air quality conditions Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Air Summary: Learn More: www.arl.noaa.gov 17 A Breath of Fresh Air: Improving Air Quality Predictions... reduce air pollution by driving less and mowing their lawn when...

257

LiCl dehumidifier/LiBr absorption chiller hybrid air conditioning system with energy recovery  

SciTech Connect (OSTI)

This invention relates to a hybrid air conditioning system that combines a solar powered LiCl dehumidifier with a LiBr absorption chiller. The desiccant dehumidifier removes the latent load by absorbing moisture from the air, and the sensible load is removed by the absorption chiller. The desiccant dehumidifier is coupled to a regenerator and the desiccant in the regenerator is heated by solar heated hot water to drive the moisture therefrom before being fed back to the dehumidifier. The heat of vaporization expended in the desiccant regenerator is recovered and used to partially preheat the driving fluid of the absorption chiller, thus substantially improving the overall COP of the hybrid system.

Ko, S.M.

1980-06-03T23:59:59.000Z

258

LiCl dehumidifier LiBr absorption chiller hybrid air conditioning system with energy recovery  

SciTech Connect (OSTI)

This invention relates to a hybrid air conditioning system that combines a solar powered LiCl dehumidifier with a LiBr absorption chiller. The desiccant dehumidifier removes the latent load by absorbing moisture from the air, and the sensible load is removed by the absorption chiller. The desiccant dehumidifier is coupled to a regenerator and the desiccant in the regenerator is heated by solar heated hot water to drive the moisture therefrom before being fed back to the dehumidifier. The heat of vaporization expended in the desiccant regenerator is recovered and used to partially preheat the driving fluid of the absorption chiller, thus substantially improving the overall COP of the hybrid system. 4 figs.

Ko, S.M.

1980-06-03T23:59:59.000Z

259

Impact of Vehicle Air-Conditioning on Fuel Economy, Tailpipe Emissions, and Electric Vehicle Range: Preprint  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Vehicle Air- Vehicle Air- Conditioning on Fuel Economy, Tailpipe Emissions, and Electric Vehicle Range Preprint September 2000 * NREL/CP-540-28960 R. Farrington and J. Rugh To Be Presented at the Earth Technologies Forum Washington, D.C. October 31, 2000 National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401-3393 NREL is a U.S. Department of Energy Laboratory Operated by Midwest Research Institute * * * * Battelle * * * * Bechtel Contract No. DE-AC36-99-GO10337 NOTICE The submitted manuscript has been offered by an employee of the Midwest Research Institute (MRI), a contractor of the US Government under Contract No. DE-AC36-99GO10337. Accordingly, the US Government and MRI retain a nonexclusive royalty-free license to publish or reproduce the published

260

USER SATISFACTION WITH INNOVATIVE COOLING RETROFITS IN SACRAMENTO PUBLIC HOUSING  

E-Print Network [OSTI]

and a housing authority have been retrofitting their buildings with evaporative coolers, ground-source heatpumps

Diamond, Richard

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Building Technologies Office: Advanced Energy Retrofit Guides  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Retrofit Guides Retrofit Guides Photo of the cover of the Advanced Energy Retrofit Guide for Healthcare Facilities. The Advanced Energy Retrofit Guides (AERGs) help building owners and managers as well as design and construction professionals plan, design, and implement energy efficiency upgrades in commercial buildings. The Advanced Energy Retrofit Guides (AERGs) were created to help decision makers plan, design, and implement energy improvement projects in their facilities. With energy managers in mind, they present practical guidance for kick-starting the process and maintaining momentum throughout the project life cycle. These guides are primarily reference documents, allowing energy managers to consult the particular sections that address the most pertinent topics.. Useful resources are also cited throughout the guides for further information. Each AERG is tailored specifically to the needs of a specific building type, with an emphasis on the most effective retro-commissioning and retrofit measures identified by experts familiar with those unique opportunities and challenges. The guides present a broad range of proven practices that can help energy managers take specific actions at any stage of the retrofit process, resulting in energy savings for many years to come.

262

Alternative Fuels Data Center: Alternative Fuel Vehicle Retrofit Emissions  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Alternative Fuel Alternative Fuel Vehicle Retrofit Emissions Inspection Process to someone by E-mail Share Alternative Fuels Data Center: Alternative Fuel Vehicle Retrofit Emissions Inspection Process on Facebook Tweet about Alternative Fuels Data Center: Alternative Fuel Vehicle Retrofit Emissions Inspection Process on Twitter Bookmark Alternative Fuels Data Center: Alternative Fuel Vehicle Retrofit Emissions Inspection Process on Google Bookmark Alternative Fuels Data Center: Alternative Fuel Vehicle Retrofit Emissions Inspection Process on Delicious Rank Alternative Fuels Data Center: Alternative Fuel Vehicle Retrofit Emissions Inspection Process on Digg Find More places to share Alternative Fuels Data Center: Alternative Fuel Vehicle Retrofit Emissions Inspection Process on AddThis.com...

263

Commentary: Air-conditioning as a risk for increased use of healthservices  

SciTech Connect (OSTI)

In this issue of the journal, Preziosi et al. [2004] report the first study to assess differences in the utilization of health care related to the presence of air-conditioning in office workplaces. Although the study was simple and cross-sectional, the data variables from questionnaires, and the findings subject to a variety of questions, the findings are striking enough to deserve clarification. The study used a large random national sample of French women assembled for another purpose (to study antioxidant nutrients and prevention of cancer and cardiovascular disease). Participants reported health services and health events in monthly questionnaires over 1 year, and in one questionnaire in the middle of that period also reported whether air-conditioning was in use at their workplace. Fifteen percent of participants reported air-conditioning at work. Analyses adjusting for age and smoking status of participants found increases in most outcomes assessed: use of specific kinds of physicians, sickness absence, and hospital stays. While the increases in odds ratios (OR) and 95% confidence intervals (CI) were statistically significant for only otorhinolaryngology [OR (95% CI) = 2.33 (1.35-4.04)] and sickness absence [1.70 (1.13-2.58)], other increases were notable--dermatology [1.6 (0.98-2.65)]; hospital stay [1.51 (0.92-2.45)], and pneumonology [2.10 (0.65-6.82)]. The least elevated outcomes were for general practice medicine [0.99 (0.65-1.48)] and global medical visits [1.18 (0.67-2.07)]. [Preziosi et al., 2004 ,(Table 2)] Odds ratios for relatively common health outcomes often lie farther from the null than the risk ratios most useful for quantifying the increase in risk. Risk ratios, or prevalence ratios (PRs, the equivalent measure of effect for cross-sectional data), have seldom been used because of the convenience and availability of logistic regression models that estimate odds ratios. With baseline prevalences ranging up to 85.7% in the data from Preziosi et al. [2004], PRs allow a more appropriate estimate of the increase in each outcome associated with the risk factor of air-conditioning. The increase in prevalence was roughly estimated as [100* (crude PR * adjusted OR/crude OR)-100] %. Based on the data in Table 2 of Preziosi et al. [ 2004], estimates for the increased prevalence associated with air-conditioned offices include increases of 120% in otorhinolaryngology visits, and 40% in sickness absence. If these associated increases represented valid causal relationships, it would indicate enormous costs for employers and for society associated with air-conditioning systems, from increased health care and for reduced workplace productivity from sickness absence, in addition to a large burden of disease on workers.

Mendell, Mark J.

2004-06-01T23:59:59.000Z

264

Fuel-Free Compressed-Air Energy Storage: Fuel-Free, Ubiquitous Compressed-Air Energy Storage and Power Conditioning  

SciTech Connect (OSTI)

GRIDS Project: General Compression has developed a transformative, near-isothermal compressed air energy storage system (GCAES) that prevents air from heating up during compression and cooling down during expansion. When integrated with renewable generation, such as a wind farm, intermittent energy can be stored in compressed air in salt caverns or pressurized tanks. When electricity is needed, the process is reversed and the compressed air is expanded to produce electricity. Unlike conventional compressed air energy storage (CAES) projects, no gas is burned to convert the stored high-pressure air back into electricity. The result of this breakthrough is an ultra-efficient, fully shapeable, 100% renewable and carbon-free power product. The GCAES system can provide high quality electricity and ancillary services by effectively integrating renewables onto the grid at a cost that is competitive with gas, coal and nuclear generation.

None

2010-09-13T23:59:59.000Z

265

Residential Retrofit Program Design Guide  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Technical Assistance Program Technical Assistance Program Residential Retrofit Program Design Guide May 2011 This work has been performed by the Vermont Energy Investment Corporation (VEIC) and Energy Futures Group (EFG), under the Contract No. 4200000341 with Oak Ridge National Laboratory which is managed by UT-Battelle, LLC under Contract with the US Department of Energy No. DE-AC05-00OR22725. This document was prepared in collaboration with a partnership of companies under this contract. The partnership is led by the Vermont Energy Investment Corporation (VEIC), and includes the following companies: American Council for an Energy Efficient Economy (ACEEE), Energy Futures Group (EFG), Midwest Energy Efficiency Alliance (MEEA), Northwest Energy Efficiency Alliance (NEEA), Northeast Energy Efficiency Partnership (NEEP), Natural

266

Solutions for Summer Electric Power Shortages: Demand Response andits Applications in Air Conditioning and Refrigerating Systems  

SciTech Connect (OSTI)

Demand response (DR) is an effective tool which resolves inconsistencies between electric power supply and demand. It further provides a reliable and credible resource that ensures stable and economical operation of the power grid. This paper introduces systematic definitions for DR and demand side management, along with operational differences between these two methods. A classification is provided for DR programs, and various DR strategies are provided for application in air conditioning and refrigerating systems. The reliability of DR is demonstrated through discussion of successful overseas examples. Finally, suggestions as to the implementation of demand response in China are provided.

Han, Junqiao; Piette, Mary Ann

2007-11-30T23:59:59.000Z

267

An experimental system for advanced heating, ventilating and air conditioning (HVAC) control  

Science Journals Connector (OSTI)

While having the potential to significantly improve heating, ventilating and air conditioning (HVAC) system performance, advanced (e.g., optimal, robust and various forms of adaptive) controllers have yet to be incorporated into commercial systems. Controllers consisting of distributed proportional-integral (PI) control loops continue to dominate commercial HVAC systems. Investigation into advanced HVAC controllers has largely been limited to proposals and simulations, with few controllers being tested on physical systems. While simulation can be insightful, the only true means for verifying the performance provided by HVAC controllers is by actually using them to control an HVAC system. The construction and modeling of an experimental system for testing advanced HVAC controllers, is the focus of this article. A simple HVAC system, intended for controlling the temperature and flow rate of the discharge air, was built using standard components. While only a portion of an overall HVAC system, it is representative of a typical hot water to air heating system. In this article, a single integrated environment is created that is used for data acquisition, controller design, simulation, and closed loop controller implementation and testing. This environment provides the power and flexibility needed for rapid prototyping of various controllers and control design methodologies.

Michael Anderson; Michael Buehner; Peter Young; Douglas Hittle; Charles Anderson; Jilin Tu; David Hodgson

2007-01-01T23:59:59.000Z

268

"Table HC15.6 Air Conditioning Characteristics by Four Most Populated States, 2005"  

U.S. Energy Information Administration (EIA) Indexed Site

6 Air Conditioning Characteristics by Four Most Populated States, 2005" 6 Air Conditioning Characteristics by Four Most Populated States, 2005" " Million U.S. Housing Units" ,"U.S. Housing Units (millions)","Four Most Populated States" "Air Conditioning Characteristics",,"New York","Florida","Texas","California" "Total",111.1,7.1,7,8,12.1 "Do Not Have Cooling Equipment",17.8,1.8,"Q","Q",4.9 "Have Cooling Equipment",93.3,5.3,7,7.8,7.2 "Use Cooling Equipment",91.4,5.3,7,7.7,6.6 "Have Equipment But Do Not Use it",1.9,"Q","N","Q",0.6 "Air-Conditioning Equipment1, 2 " "Central System",65.9,1.1,6.4,6.4,5.4

269

"Table HC11.7 Air-Conditioning Usage Indicators by Northeast Census Region, 2005"  

U.S. Energy Information Administration (EIA) Indexed Site

7 Air-Conditioning Usage Indicators by Northeast Census Region, 2005" 7 Air-Conditioning Usage Indicators by Northeast Census Region, 2005" " Million U.S. Housing Units" ,,"Northeast Census Region" ,"U.S. Housing Units (millions)" ,,,"Census Division" ,,"Total Northeast" "Air Conditioning Usage Indicators",,,"Middle Atlantic","New England" "Total",111.1,20.6,15.1,5.5 "Do Not Have Cooling Equipment",17.8,4,2.4,1.7 "Have Cooling Equipment",93.3,16.5,12.8,3.8 "Use Cooling Equipment",91.4,16.3,12.6,3.7 "Have Equipment But Do Not Use it",1.9,0.3,"Q","Q" "Type of Air-Conditioning Equipment1, 2" "Central System",65.9,6,5.2,0.8 "Without a Heat Pump",53.5,5.5,4.8,0.7

270

"Table HC15.7 Air-Conditioning Usage Indicators by Four Most Populated States, 2005"  

U.S. Energy Information Administration (EIA) Indexed Site

7 Air-Conditioning Usage Indicators by Four Most Populated States, 2005" 7 Air-Conditioning Usage Indicators by Four Most Populated States, 2005" " Million U.S. Housing Units" ,"Housing Units (millions)","Four Most Populated States" "Air Conditioning Usage Indicators",,"New York","Florida","Texas","California" "Total",111.1,7.1,7,8,12.1 "Do Not Have Cooling Equipment",17.8,1.8,"Q","Q",4.9 "Have Cooling Equipment",93.3,5.3,7,7.8,7.2 "Use Cooling Equipment",91.4,5.3,7,7.7,6.6 "Have Equipment But Do Not Use it",1.9,"Q","N","Q",0.6 "Type of Air-Conditioning Equipment1, 2" "Central System",65.9,1.1,6.4,6.4,5.4

271

"Table HC10.7 Air-Conditioning Usage Indicators by U.S. Census Region, 2005"  

U.S. Energy Information Administration (EIA) Indexed Site

7 Air-Conditioning Usage Indicators by U.S. Census Region, 2005" 7 Air-Conditioning Usage Indicators by U.S. Census Region, 2005" " Million U.S. Housing Units" ,"Housing Units (millions)","U.S. Census Region" "Air Conditioning Usage Indicators",,"Northeast","Midwest","South","West" "Total",111.1,20.6,25.6,40.7,24.2 "Do Not Have Cooling Equipment",17.8,4,2.1,1.4,10.3 "Have Cooling Equipment",93.3,16.5,23.5,39.3,13.9 "Use Cooling Equipment",91.4,16.3,23.4,38.9,12.9 "Have Equipment But Do Not Use it",1.9,0.3,"Q",0.5,1 "Type of Air-Conditioning Equipment1, 2" "Central System",65.9,6,17.3,32.1,10.5 "Without a Heat Pump",53.5,5.5,16.2,23.2,8.7

272

"Table HC13.7 Air-Conditioning Usage Indicators by South Census Region, 2005"  

U.S. Energy Information Administration (EIA) Indexed Site

7 Air-Conditioning Usage Indicators by South Census Region, 2005" 7 Air-Conditioning Usage Indicators by South Census Region, 2005" " Million U.S. Housing Units" ,,"South Census Region" ,"U.S. Housing Units (millions)" ,,,"Census Division" ,,"Total South" "Air Conditioning Usage Indicators",,,"South Atlantic","East South Central","West South Central" "Total",111.1,40.7,21.7,6.9,12.1 "Do Not Have Cooling Equipment",17.8,1.4,0.8,0.2,0.3 "Have Cooling Equipment",93.3,39.3,20.9,6.7,11.8 "Use Cooling Equipment",91.4,38.9,20.7,6.6,11.7 "Have Equipment But Do Not Use it",1.9,0.5,"Q","Q","Q" "Type of Air-Conditioning Equipment1, 2"

273

Energy Conservation and Comfort of Heat Pump Desiccant Air Conditioning System in Actual Living Space in Summer  

E-Print Network [OSTI]

Energy Conservation and Comfort of Heat Pump Desiccant Air Conditioning System in Actual Living and total heat exchanger in terms of both energy conservation and thermal comfort in summer. 1. COP

Miyashita, Yasushi

274

A genetic rule weighting and selection process for fuzzy control of heating, ventilating and air conditioning systems  

Science Journals Connector (OSTI)

In this paper, we propose the use of weighted linguistic fuzzy rules in combination with a rule selection process to develop accurate fuzzy logic controllers dedicated to the intelligent control of heating, ventilating and air conditioning systems concerning ... Keywords: BEMS, building energy management system, FLC, fuzzy logic controller, Fuzzy logic controllers, GA, genetic algorithm, Genetic algorithms, HVAC systems, HVAC, heating, ventilating, and air conditioning, KB, knowledge base, PMV, predicted mean vote index for thermal comfort, Rule selection, Weighted fuzzy rules

Rafael Alcal; Jorge Casillas; Oscar Cordn; Antonio Gonzlez; Francisco Herrera

2005-04-01T23:59:59.000Z

275

Retrofitting the Streetlights in Boise, Idaho  

ScienceCinema (OSTI)

Boise, Idaho is using an energy efficiency grant to retrofit hundreds of streetlights throughout the downtown area with energy-efficient LED bulbs, which will save money and improve safety and local quality of life.

Young, Clay; Oliver, LeAnn; Bieter, David; Johnson, Michael; Oldemeyer, Neal

2013-05-29T23:59:59.000Z

276

EECBG Success Story: Lighting Retrofit Improving Visibility,...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Retrofit Improving Visibility, Saving Energy August 27, 2010 - 10:05am Addthis New LED lighting fixtures (right) emit a whiter light than existing high-pressure sodium cobra...

277

Retrofitting the Streetlights in Boise, Idaho  

SciTech Connect (OSTI)

Boise, Idaho is using an energy efficiency grant to retrofit hundreds of streetlights throughout the downtown area with energy-efficient LED bulbs, which will save money and improve safety and local quality of life.

Young, Clay; Oliver, LeAnn; Bieter, David; Johnson, Michael; Oldemeyer, Neal

2011-01-01T23:59:59.000Z

278

Energy Efficient Retrofits and Green Building Practices  

E-Print Network [OSTI]

. Moreover, the increase in demand is also causing rise in pollution levels. Therefore, the subject of energy efficient retrofits and green building practices is becoming increasingly important. Based on the latest walkthrough energy audit it is proven...

Rahman, M.

2010-01-01T23:59:59.000Z

279

Energy and global warming impacts of next generation refrigeration and air conditioning technologies  

SciTech Connect (OSTI)

Significant developments have occurred in hydrofluorocarbon (HFC) and the application of ammonia and hydrocarbons as refrigerant working fluids since the original TEWI (Total Equivalent Warming Impact) report in 1991. System operating and performance data on alternative refrigerants and refrigeration technologies justify and updated evaluation of these new alternative refrigerants and competing technologies in well-characterized applications. Analytical and experimental results are used to show quantitative comparisons between HFCS, HFC blends, hydrocarbons, and ammonia, used as refrigerants. An objective evaluation is presented for commercial and near commercial non-CFC refrigerants/blowing agents and alternative refrigeration technologies. This information is needed for objective and quantitative decisions on policies addressing greenhouse gas emissions from refrigeration and air conditioning equipment. The evaluation assesses the energy use and global warming impacts of refrigeration and air conditioning technologies that could be commercialized during the phase out of HCFCS. Quantitative comparison TEWI for two application areas are presented. Opportunities for significant reductions in TEWI are seen with currently known refrigerants through improved maintenance and servicing practices and improved product designs.

Sand, J.R.; Fischer, S.K.; Baxter, V.D.

1996-10-01T23:59:59.000Z

280

Realisable 10-year reductions in European energy consumption for air conditioning  

Science Journals Connector (OSTI)

Abstract This paper summarises the results of a study to identify and quantify the potential impact of measures and policies to reduce the energy consumption of air conditioning in European countries over a 10-year period. The market penetration of air conditioning in Europe has increased steadily over several decades. On a business as usual basis, its energy consumption would increase by over 50% by 2020. Measures to restrict this increase are therefore important, but the savings potential straddles several overlapping areas which are subject to different constraints including those imposed by the replacement rates of systems and products, and the refurbishment rates of existing buildings. This work reported in this paper is based on the use of information from a variety of sources in a highly disaggregated model to assess the realisable savings over a 10-year period, taking into account relevant constraints. The paper summarises results at a European level, focussing on those cases that generate the greatest realisable savings. Savings are possible in three areas: improved equipment and system efficiency, reduced cooling loads, and more effective operation. The cases that offer the largest savings provide the basis for recommendations for policy measures, often using existing policy instruments. In addition, areas where further work is needed are identified. More detailed results and information about the study and additional recommendations can be found at http://www.bre.co.uk/searchresults.jsp?category=5&q=energy+management [1].

Roger Hitchin; Christine Pout; David Butler

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Advances in the development of energy efficient technologies: Sea Water Air Conditioning (SWAC)  

SciTech Connect (OSTI)

Sea water air conditioning (SWAC) is a cost effective and environmentally friendly alternative to and/or enhancement of air conditioning from mechanical chillers. SWAC pumps cold sea water from the appropriate ocean depths (50 to 3,000 feet depending on the climate and local characteristics) to the shore where it replaces (by direct cooling) or enhances (through use as condenser water) large mechanical chillers found in coastal facilities. SWAC direct cooling uses less than twenty per cent of the electricity of a mechanical chiller and uses no refrigerants whatsoever. Indirect cooling also offers substantial energy savings. Both systems dispense with the need for a cooling tower. Technical advances over the last twenty years in corrosion resistant alloys (titanium or aluminum), bio-fouling deterrence, and deep ocean pipeline deployment allow SWAC installations to use reliable, off-the-shelf technology. SWAC works in a variety of climates (existing installations are in Hawaii and Halifax, Nova Scotia), giving it significant domestic and international potential. Economy-of-scale advantages make it attractive to district cooling schemes.

Coony, J.E. [Boston Pacific Co., Inc., Washington, DC (United States)

1996-11-01T23:59:59.000Z

282

Making your Building Smarter : The Retrofit Challenge  

E-Print Network [OSTI]

Wireless Temp Sensors IBM Dublin Research Labs : Smart Buildings Living Lab Environment Background ? 2012 IBM Corporation IBM Dublin Research Labs Our Smart Building Retrofit Challenges Retrofit Challenges Summary 1. Smart Building Design 2... Comfortable environment ?Reduce Energy/Water usage environment ?Keep within Budget ?Biggest Challenge ?? Constantly competing (& changing) objectives within the design and build cycles What to include ? What is critical? Where to Invest ? 5 ? 2012...

Brady, N.

2012-01-01T23:59:59.000Z

283

Evaluation of passive solar retrofit options  

SciTech Connect (OSTI)

An evaluation framework has been developed which allows for the assessment of the role of passive solar retrofit in the nationwide reduction of conventional fuel use. Three types of analysis are proposed within this framework: the physical/technical capability of the present housing stock to incorporate passive solar retrofit; the economic feasibility of the application of retrofit designs; and the actual market potential or acceptance of these alternative retrofit options. Each type of analysis has specific data requirements and a series of evaluation procedures to help establish estimates of the potential for passive solar retrofit in the present housing stock. The data requirements with their respective sources and evaluation procedures for the first two types of analysis-physical/technical setting and economic feasibility, are examined. A distinction is drawn between community specific case studies and more generalized national assessments. Information derived from these three types of analysis, whether case specific or national in scope, can then be used in an evaluation of potential economic impacts. The establishment of regional economic benefits and costs werve as a measure of the merit or attractiveness of the implementation of a passive solar retrofit program.

Ben-David, S.; Kirchemen, C.; Martin, S.; Noll, S.; Roach, F.

1980-01-01T23:59:59.000Z

284

E-Print Network 3.0 - air filter condition Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

fans... , water treatment equipment, elevators (electric and hydraulic), sewer lift pumps, filter servicing in air... : Use of mechanical equipment such as refrigeration, air...

285

E-Print Network 3.0 - air conditioning energy Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Geosciences 3 Energy Efficient Process Heating: Managing Air Flow Kevin Carpenter and Kelly Kissock Summary: Energy Efficient Process Heating: Managing Air Flow Kevin Carpenter...

286

E-Print Network 3.0 - air conditioning Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Collection: Geosciences ; Environmental Sciences and Ecology 19 Connectable solar air collectors Solar Energy Centre Denmark Summary: Connectable solar air collectors Solar...

287

E-Print Network 3.0 - air conditioning applications Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Storage, Conversion and Utilization ; Engineering 13 Connectable solar air collectors Solar Energy Centre Denmark Summary: Connectable solar air collectors Solar Energy Centre...

288

Post-Retrofit Residential Assessments  

SciTech Connect (OSTI)

This study examined a range of factors influencing energy consumption in households that had participated in residential energy-efficiency upgrades. The study was funded by a grant from the U.S. Department of Energys Pacific Northwest National Laboratory and was conducted by faculty and staff of Portland State University Center for Urban Studies and Department of Economics. This work was made possible through the assistance and support of the Energy Trust of Oregon (ETO), whose residential energy-efficiency programs provided the population from which the sample cases were drawn. All households in the study had participated in the ETO Home Performance with Energy Star (HPwES) program. A number of these had concurrently pursued measures through other ETO programs. Post-retrofit energy outcomes are rarely investigated on a house-by-house basis. Rather, aggregate changes are ordinarily the focus of program impact evaluations, with deviation from aggregate expectations chalked up to measurement error, the vagaries of weather and idiosyncrasies of occupants. However, understanding how homes perform post-retrofit on an individual basis can give important insights to increase energy savings at the participant and the programmatic level. Taking a more disaggregated approach, this study analyzed energy consumption data from before and after the retrofit activity and made comparisons with engineering estimates for the upgrades, to identify households that performed differently from what may have been expected based on the estimates. A statistical analysis using hierarchal linear models, which accounted for weather variations, was performed looking separately at gas and electrical use during the periods before and after upgrades took place. A more straightforward comparison of billing data for 12-month periods before and after the intervention was also performed, yielding the majority of the cases examined. The later approach allowed total energy use and costs to be assessed but did not account for weather variation. From this statistical analysis, 18 study participants were selected and interviewed. The participants completed an in-home interview covering a range of topics, including changes in occupancy and additional changes to the homes that may have affected energy use. The goal of the interviews was to identify factors that may have contributed to unusual energy performance. These factors were identified by their frequency of occurrence in outperforming or underperforming homes, or simply by identifying factors that had the largest impact on overall savings. The motivations and levels of satisfaction with the outcomes of the upgrades were covered in detail, as well as extensive discussions of behaviors pertaining to thermal control, lighting, water, and appliance use. Most of cases studied achieved substantial energy savings, although it was more common for the projected savings to be greater than the demonstrated savings. Two factors that played a very large role in savings variation were 1) changes in occupancy and 2) fenestration improvements outside of the incentive programs. Motivation for pursuing the upgrades (e.g., environmental sustainability vs. comfort or cost savings) did not seem to play any role in achieving savings. Participants generally were more concerned with maintaining aesthetics through lighting than comfort through heating or cooling. They also seemed more likely to turn the lights off when leaving a room than to turn the heat off when leaving the home.

Lancaster, Ross; lutzenhiser, Loren; Moezzi, Mithra; Widder, Sarah H.; Chandra, Subrato; Baechler, Michael C.

2012-04-30T23:59:59.000Z

289

Ready to Retrofit: The Process of Project Team Selection, Building  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Ready to Retrofit: The Process of Project Team Selection, Building Ready to Retrofit: The Process of Project Team Selection, Building Benchmarking, and Financing Commercial Building Energy Retrofit Projects Title Ready to Retrofit: The Process of Project Team Selection, Building Benchmarking, and Financing Commercial Building Energy Retrofit Projects Publication Type Report LBNL Report Number LBNL-5893E Year of Publication 2012 Authors Sanders, Mark D., Kristen Parrish, and Paul A. Mathew Publisher LBNL Abstract This guide provides an introduction and overview to the retrofit process and then dives deeper into the key activities that an owner can influence most in the retrofit process: (1) Selecting Your Project Team, (2) Benchmarking Your Building, and (3) Financing Your Energy Efficiency Projects* Building Energy Retrofit Overview will provide you a simple explanation of the retrofit process, the project stages and the players involved.

290

Alternative Fuels Data Center: School Bus Retrofit Reimbursement  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

School Bus Retrofit School Bus Retrofit Reimbursement to someone by E-mail Share Alternative Fuels Data Center: School Bus Retrofit Reimbursement on Facebook Tweet about Alternative Fuels Data Center: School Bus Retrofit Reimbursement on Twitter Bookmark Alternative Fuels Data Center: School Bus Retrofit Reimbursement on Google Bookmark Alternative Fuels Data Center: School Bus Retrofit Reimbursement on Delicious Rank Alternative Fuels Data Center: School Bus Retrofit Reimbursement on Digg Find More places to share Alternative Fuels Data Center: School Bus Retrofit Reimbursement on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type School Bus Retrofit Reimbursement The Illinois Department of Education will reimburse any qualifying school

291

Alternative Fuels Data Center: School Bus Retrofit Grant Program  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

School Bus Retrofit School Bus Retrofit Grant Program to someone by E-mail Share Alternative Fuels Data Center: School Bus Retrofit Grant Program on Facebook Tweet about Alternative Fuels Data Center: School Bus Retrofit Grant Program on Twitter Bookmark Alternative Fuels Data Center: School Bus Retrofit Grant Program on Google Bookmark Alternative Fuels Data Center: School Bus Retrofit Grant Program on Delicious Rank Alternative Fuels Data Center: School Bus Retrofit Grant Program on Digg Find More places to share Alternative Fuels Data Center: School Bus Retrofit Grant Program on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type School Bus Retrofit Grant Program The Ohio Environmental Protection Agency (EPA) administers the Clean Diesel

292

Alternative Fuels Data Center: School Bus Retrofit Program  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Retrofit Retrofit Program to someone by E-mail Share Alternative Fuels Data Center: School Bus Retrofit Program on Facebook Tweet about Alternative Fuels Data Center: School Bus Retrofit Program on Twitter Bookmark Alternative Fuels Data Center: School Bus Retrofit Program on Google Bookmark Alternative Fuels Data Center: School Bus Retrofit Program on Delicious Rank Alternative Fuels Data Center: School Bus Retrofit Program on Digg Find More places to share Alternative Fuels Data Center: School Bus Retrofit Program on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type School Bus Retrofit Program The goals of the Connecticut Clean School Bus Program are to: 1) establish grants for municipalities and local and regional school boards to reimburse

293

RM12-2703 Advanced Rooftop Unit Control Retrofit Kit Field Demonstration: Hawaii and Guam Energy Improvement Technology Demonstration Project  

SciTech Connect (OSTI)

As part of its overall strategy to meet its energy goals, the Naval Facilities Engineering Command (NAVFAC) partnered with U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) to rapidly demonstrate and deploy cost-effective renewable energy and energy efficiency technologies. This was one of several demonstrations of new and underutilized commercial energy efficiency technologies. The consistent year-round demand for air conditioning and dehumidification in Hawaii provides an advantageous demonstration location for advanced rooftop control (ARC) retrofit kits to packaged rooftop units (RTUs). This report summarizes the field demonstration of ARCs installed on nine RTUs serving a 70,000-ft2 exchange store (large retail) and two RTUs, each serving small office buildings located on Joint Base Pearl Harbor-Hickam (JBPHH).

Doebber, I.; Dean, J.; Dominick, J.; Holland, G.

2014-03-01T23:59:59.000Z

294

Boiler Upgrades and Decentralizing Steam Systems Save Water and Energy at Naval Air Station Oceana  

Broader source: Energy.gov (indexed) [DOE]

Location at NAS Oceana. Location at NAS Oceana. by these changes, including bachelor housing, hangers, the galley, office buildings, the chapel, and maintenance facilities. This ESPC also included installing ground source heat pumps in three buildings, adding digital control systems to increase heating, ventilation and air conditioning (HVAC) efficiency, efficient lighting retrofits, and other water conservation measures. These other water conservation measures include over 5,000 water efficient domestic fixtures, includ- ing faucets, showerheads, and toilets

295

Boiler Upgrades and Decentralizing Steam Systems Save Water and Energy at Naval Air Station Oceana  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Location at NAS Oceana. Location at NAS Oceana. by these changes, including bachelor housing, hangers, the galley, office buildings, the chapel, and maintenance facilities. This ESPC also included installing ground source heat pumps in three buildings, adding digital control systems to increase heating, ventilation and air conditioning (HVAC) efficiency, efficient lighting retrofits, and other water conservation measures. These other water conservation measures include over 5,000 water efficient domestic fixtures, includ- ing faucets, showerheads, and toilets

296

Case Study: Evaluating Liquid versus Air Cooling in the Maui High Performance Computing Center  

Broader source: Energy.gov [DOE]

Study evaluates the energy efficiency of a new, liquid-cooled computing system applied in a retrofit project compared to the previously used air-cooled system.

297

Effect of Intake Air Filter Condition on Vehicle Fuel Economy--ORNL/TM-2009/021  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

021 021 Effect of Intake Air Filter Condition on Vehicle Fuel Economy February 2009 Prepared by Kevin Norman Shean Huff Brian West DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via the U.S. Department of Energy (DOE) Information Bridge. Web site http://www.osti.gov/bridge Reports produced before January 1, 1996, may be purchased by members of the public from the following source. National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 Telephone 703-605-6000 (1-800-553-6847) TDD 703-487-4639 Fax 703-605-6900 E-mail info@ntis.gov Web site http://www.ntis.gov/support/ordernowabout.htm Reports are available to DOE employees, DOE contractors, Energy Technology Data Exchange

298

New Automotive Air Conditioning System Simulation Tool Developed in MATLAB/Simulink  

SciTech Connect (OSTI)

Further improvements in vehicle fuel efficiency require accurate evaluation of the vehicle's transient total power requirement. When operated, the air conditioning (A/C) system is the largest auxiliary load on a vehicle; therefore, accurate evaluation of the load it places on the vehicle's engine and/or energy storage system is especially important. Vehicle simulation software, such as 'Autonomie,' has been used by OEMs to evaluate vehicles' energy performance. A transient A/C simulation tool incorporated into vehicle simulation models would also provide a tool for developing more efficient A/C systems through a thorough consideration of the transient A/C system performance. The dynamic system simulation software Matlab/Simulink was used to develop new and more efficient vehicle energy system controls. The various modeling methods used for the new simulation tool are described in detail. Comparison with measured data is provided to demonstrate the validity of the model.

Kiss, T.; Chaney, L.; Meyer, J.

2013-07-01T23:59:59.000Z

299

Evaluation Framework and Analyses for Thermal Energy Storage Integrated with Packaged Air Conditioning  

SciTech Connect (OSTI)

Few third-party guidance documents or tools are available for evaluating thermal energy storage (TES) integrated with packaged air conditioning (AC), as this type of TES is relatively new compared to TES integrated with chillers or hot water systems. To address this gap, researchers at the National Renewable Energy Laboratory conducted a project to improve the ability of potential technology adopters to evaluate TES technologies. Major project outcomes included: development of an evaluation framework to describe key metrics, methodologies, and issues to consider when assessing the performance of TES systems integrated with packaged AC; application of multiple concepts from the evaluation framework to analyze performance data from four demonstration sites; and production of a new simulation capability that enables modeling of TES integrated with packaged AC in EnergyPlus. This report includes the evaluation framework and analysis results from the project.

Kung, F.; Deru, M.; Bonnema, E.

2013-10-01T23:59:59.000Z

300

Heating, Ventilating, and Air-Conditioning: Recent Advances in Diagnostics and Controls to Improve Air-Handling System Performance  

SciTech Connect (OSTI)

The performance of air-handling systems in buildings needs to be improved. Many of the deficiencies result from myths and lore and a lack of understanding about the non-linear physical principles embedded in the associated technologies. By incorporating these principles, a few important efforts related to diagnostics and controls have already begun to solve some of the problems. This paper illustrates three novel solutions: one rapidly assesses duct leakage, the second configures ad hoc duct-static-pressure reset strategies, and the third identifies useful intermittent ventilation strategies. By highlighting these efforts, this paper seeks to stimulate new research and technology developments that could further improve air-handling systems.

Wray, Craig; Wray, Craig P.; Sherman, Max H.; Walker, I.S.; Dickerhoff, D.J.; Federspiel, C.C.

2008-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

NREL's Energy-Saving Technology for Air Conditioning Cuts Peak Power Loads Without Using Harmful Refrigerants (Fact Sheet)  

SciTech Connect (OSTI)

This fact sheet describes how the DEVAP air conditioner was invented, explains how the technology works, and why it won an R&D 100 Award. Desiccant-enhanced evaporative (DEVAP) air-conditioning will provide superior comfort for commercial buildings in any climate at a small fraction of the electricity costs of conventional air-conditioning equipment, releasing far less carbon dioxide and cutting costly peak electrical demand by an estimated 80%. Air conditioning currently consumes about 15% of the electricity generated in the United States and is a major contributor to peak electrical demand on hot summer days, which can lead to escalating power costs, brownouts, and rolling blackouts. DEVAP employs an innovative combination of air-cooling technologies to reduce energy use by up to 81%. DEVAP also shifts most of the energy needs to thermal energy sources, reducing annual electricity use by up to 90%. In doing so, DEVAP is estimated to cut peak electrical demand by nearly 80% in all climates. Widespread use of this cooling cycle would dramatically cut peak electrical loads throughout the country, saving billions of dollars in investments and operating costs for our nation's electrical utilities. Water is already used as a refrigerant in evaporative coolers, a common and widely used energy-saving technology for arid regions. The technology cools incoming hot, dry air by evaporating water into it. The energy absorbed by the water as it evaporates, known as the latent heat of vaporization, cools the air while humidifying it. However, evaporative coolers only function when the air is dry, and they deliver humid air that can lower the comfort level for building occupants. And even many dry climates like Phoenix, Arizona, have a humid season when evaporative cooling won't work well. DEVAP extends the applicability of evaporative cooling by first using a liquid desiccant-a water-absorbing material-to dry the air. The dry air is then passed to an indirect evaporative cooling stage, in which the incoming air is in thermal contact with a moistened surface that evaporates the water into a separate air stream. As the evaporation cools the moistened surface, it draws heat from the incoming air without adding humidity to it. A number of cooling cycles have been developed that employ indirect evaporative cooling, but DEVAP achieves a superior efficiency relative to its technological siblings.

Not Available

2012-07-01T23:59:59.000Z

302

Regression analysis of residential air-conditioning energy consumption at Dhahran, Saudi Arabia  

SciTech Connect (OSTI)

The energy consumption of a house air conditioner located at Dhahran, Saudi Arabia, is modeled as a function of weather parameters and total (global) solar radiation on a horizontal surface. The selection of effective parameters that significantly influence energy consumption is carried out using general stepping regression methods. The problem of collinearity between the regressors is also investigated. The final model involves parameters of total solar radiation on a horizontal surface, wind speed, and temperature difference between the indoor and outdoor condition. However, the model coefficients are functions of relative humidity and/or temperature difference between the indoor and outdoor condition. Model adequacy is examined by the residual analysis technique. Model validation is carried out by the data-splitting technique. The sensitivity of the model indicates that relative humidity and temperature difference strongly influence the cooling energy consumption. It was found that an increase in relative humidity from 20% to 100% can cause a 100% increase in cooling energy consumption during the high cooling season.

Abdel-Nabi, D.Y.; Zubair, S.M.; Abdelrahman, M.A.; Bahel, V. (Energy Systems Group, Div. of Energy Resources, Research Inst., King Fahd Univ. of Petroleum and Minerals, Dhahran (SA))

1990-01-01T23:59:59.000Z

303

Alternative Fuels Data Center: Clean Diesel Retrofit and Idle Reduction  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Clean Diesel Retrofit Clean Diesel Retrofit and Idle Reduction Grants to someone by E-mail Share Alternative Fuels Data Center: Clean Diesel Retrofit and Idle Reduction Grants on Facebook Tweet about Alternative Fuels Data Center: Clean Diesel Retrofit and Idle Reduction Grants on Twitter Bookmark Alternative Fuels Data Center: Clean Diesel Retrofit and Idle Reduction Grants on Google Bookmark Alternative Fuels Data Center: Clean Diesel Retrofit and Idle Reduction Grants on Delicious Rank Alternative Fuels Data Center: Clean Diesel Retrofit and Idle Reduction Grants on Digg Find More places to share Alternative Fuels Data Center: Clean Diesel Retrofit and Idle Reduction Grants on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type

304

"Table HC3.7 Air-Conditioning Usage Indicators by Owner-Occupied Housing Unit, 2005"  

U.S. Energy Information Administration (EIA) Indexed Site

7 Air-Conditioning Usage Indicators by Owner-Occupied Housing Unit, 2005" 7 Air-Conditioning Usage Indicators by Owner-Occupied Housing Unit, 2005" " Million U.S. Housing Units" ,," Owner-Occupied Housing Units (millions)","Type of Owner-Occupied Housing Unit" ,"U.S. Housing Units (millions)" ,,,"Single-Family Units",,"Apartments in Buildings With--" "Air Conditioning Usage Indicators",,,"Detached","Attached","2 to 4 Units","5 or More Units","Mobile Homes" "Total",111.1,78.1,64.1,4.2,1.8,2.3,5.7 "Do Not Have Cooling Equipment",17.8,11.3,9.3,0.6,"Q",0.4,0.9 "Have Cooling Equipment",93.3,66.8,54.7,3.6,1.7,1.9,4.8 "Use Cooling Equipment",91.4,65.8,54,3.6,1.7,1.9,4.7

305

"Table HC3.6 Air Conditioning Characteristics by Owner-Occupied Housing Units, 2005"  

U.S. Energy Information Administration (EIA) Indexed Site

6 Air Conditioning Characteristics by Owner-Occupied Housing Units, 2005" 6 Air Conditioning Characteristics by Owner-Occupied Housing Units, 2005" " Million U.S. Housing Units" ,," Owner-Occupied Housing Units (millions)","Type of Owner-Occupied Housing Unit" ,"U.S. Housing Units (millions" ,,,"Single-Family Units",,"Apartments in Buildings With--" "Air Conditioning Characteristics",,,"Detached","Attached","2 to 4 Units","5 or More Units","Mobile Homes" "Total",111.1,78.1,64.1,4.2,1.8,2.3,5.7 "Do Not Have Cooling Equipment",17.8,11.3,9.3,0.6,"Q",0.4,0.9 "Have Cooling Equipment",93.3,66.8,54.7,3.6,1.7,1.9,4.8 "Use Cooling Equipment",91.4,65.8,54,3.6,1.7,1.9,4.7

306

Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet)  

SciTech Connect (OSTI)

Field testing was performed in a retrofit unoccupied test house in Fresno, California. Three air-based heating, ventilation, and air conditioning (HVAC) distribution systems - a typical airflow ducted system to the bedrooms, a low airflow ducted system to the bedrooms, and a system with no ductwork to the bedrooms - were evaluated during heating, cooling, and midseason conditions. The relative ability of each of the three systems was assessed with respect to relevant Air Conditioning Contractors of America (ACCA) and ASHRAE standards for house temperature uniformity and stability, respectively. Computational fluid dynamics (CFD) modeling also was performed and refined based on comparison to field test results to determine the air flow rate into the bedrooms of over-door and bottom-of-door air transfer grilles.

Not Available

2014-02-01T23:59:59.000Z

307

Global warming impacts of ozone-safe refrigerants and refrigeration, heating, and air-conditioning technologies  

SciTech Connect (OSTI)

International agreements mandate the phase-out of many chlorine containing compounds that are used as the working fluid in refrigeration, air-conditioning, and heating equipment. Many of the chemical compounds that have been proposed, and are being used in place of the class of refrigerants eliminated by the Montreal Protocol are now being questioned because of their possible contributions to global warming. Natural refrigerants are put forth as inherently superior to manufactured refrigerants because they have very low or zero global warming potentials (GWPs). Questions are being raised about whether or not these manufactured refrigerants, primarily hydrofluorocarbons (HFCs), should be regulated and perhaps phased out in much the same manner as CFCs and HCFCs. Several of the major applications of refrigerants are examined in this paper and the results of an analysis of their contributions to greenhouse warming are presented. Supermarket refrigeration is shown to be an application where alternative technologies have the potential to reduce emissions of greenhouse gases (GHG) significantly with no clear advantage to either natural or HFC refrigerants. Mixed results are presented for automobile air conditioners with opportunities to reduce GHG emissions dependent on climate and comfort criteria. GHG emissions for hermetic and factory built systems (i.e. household refrigerators/freezers, unitary equipment, chillers) are shown to be dominated by energy use with much greater potential for reduction through efficiency improvements than by selection of refrigerant. The results for refrigerators also illustrate that hydrocarbon and carbon dioxide blown foam insulation have lower overall effects on GHG emissions than HFC blown foams at the cost of increased energy use.

Fischer, S.; Sand, J.; Baxter, V.

1997-12-01T23:59:59.000Z

308

Meteorological Conditions Dependence of Radon Concentration in the Air above the Atlantic Ocean  

Science Journals Connector (OSTI)

... very likely to happen in June, and, finally, we have connected the concentration of radon and of its descendants to the origin of the air masses, for the air ... If the air comes from the north-west of France or from Great Britain, its radon concentration is always between 10 and 27 pc./m3; the mean speed wind blowing ...

J. FONTAN; D. BLANC; A. BOUVILLE; J. LACAZE

1963-02-09T23:59:59.000Z

309

Financing Residential Retrofits | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Financing Residential Retrofits Financing Residential Retrofits Financing Residential Retrofits June 25, 2010 - 3:32pm Addthis Rancho Cucamonga, east of Los Angeles, received a $1.6 million Energy Efficiency and Conservation Block grant from the U.S. Department of Energy last year, using money authorized by the American Recovery and Reinvestment Act. Among the city's many uses of the Recovery Act funds are two different programs intended to encourage more energy efficient homes. One, the Home Improvement Loan Program, targets low-income residents who'd like to make major repairs or improvements in their homes. The other is the Energy Efficiency Reimbursement Program, open to any city resident who purchases and installs an energy efficient appliance. "I think we wanted to have the biggest impact we could and assist the

310

Financing Residential Retrofits | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Financing Residential Retrofits Financing Residential Retrofits Financing Residential Retrofits June 25, 2010 - 3:32pm Addthis Rancho Cucamonga, east of Los Angeles, received a $1.6 million Energy Efficiency and Conservation Block grant from the U.S. Department of Energy last year, using money authorized by the American Recovery and Reinvestment Act. Among the city's many uses of the Recovery Act funds are two different programs intended to encourage more energy efficient homes. One, the Home Improvement Loan Program, targets low-income residents who'd like to make major repairs or improvements in their homes. The other is the Energy Efficiency Reimbursement Program, open to any city resident who purchases and installs an energy efficient appliance. "I think we wanted to have the biggest impact we could and assist the

311

Greenbuilt Retrofit Test House Final Report  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Greenbuilt Retrofit Test House Greenbuilt Retrofit Test House Final Report B. Sparn, K. Hudon, L. Earle, C. Booten, and P. C. Tabares-Velasco National Renewable Energy Laboratory G. Barker and C. E. Hancock Mountain Energy Partnership Technical Report NREL/TP-5500-54009 October 2012 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Greenbuilt Retrofit Test House Final Report B. Sparn, K. Hudon, L. Earle, C. Booten, and P. C. Tabares-Velasco National Renewable Energy Laboratory G. Barker and C. E. Hancock

312

Retrofit Legislation at the Urban Level  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Retrofit Legislation at the Urban Level Retrofit Legislation at the Urban Level In March, the city of Berkeley, California, passed new legislation that should serve as a model for local policies intended to keep energy dollars within the community while protecting the environment. The Commercial Energy Conservation Ordinance (CECO) is based on a similar ordinance that has been law since 1989 in San Francisco, Berkeley's neighbor across the Bay. San Francisco is currently the only other city in the world to have this type of legislation. As part of the Berkeley Municipal Code, CECO requires commercial buildings to undergo energy conservation retrofits when they are sold or substantially renovated. CECO was designed with the participation of LBL's Kristin Heinemeier, who also works with the Berkeley

313

DOE Webinar ? Residential Geothermal Heat Pump Retrofits (Presentation)  

Broader source: Energy.gov [DOE]

DOE webinar, Residential Geothermal Heat Pump Retrofits presented at the DOE EERE Webinar Series on Dec. 14, 2010.

314

Financing Energy Efficiency Retrofits in the Commercial Sector Webinar  

Broader source: Energy.gov [DOE]

Financing Energy Efficiency Retrofits in the Commercial Sector Webinar, from the U.S. Department of Energy's Better Buildings program.

315

Measure Guideline: Wall Air Sealing and Insulation Methods in Existing Homes; An Overview of Opportunity and Process  

SciTech Connect (OSTI)

This guide provides renovators and retrofit contractors an overview of considerations when including wall air sealing and insulation in an energy retrofit project. It also outlines the potential project risks, various materials for insulating, possible field inspections needed, installation procedures, as well as the benefits and drawbacks. The purpose of this document is to provide the outline of the overview and process of insulating and air sealing walls so that home retrofit professionals can identify approaches to air sealing and insulation measures.

Roberts, S.; Stephenson, R.

2012-09-01T23:59:59.000Z

316

Advanced Energy Retrofit Guide Retail Buildings  

SciTech Connect (OSTI)

The Advanced Energy Retrofit Guide for Retail Buildings is a component of the Department of Energys Advanced Energy Retrofit Guides for Existing Buildings series. The aim of the guides is to facilitate a rapid escalation in the number of energy efficiency projects in existing buildings and to enhance the quality and depth of those projects. By presenting general project planning guidance as well as financial payback metrics for the most common energy efficiency measures, these guides provide a practical roadmap to effectively planning and implementing performance improvements for existing buildings.

Liu, Guopeng; Liu, Bing; Zhang, Jian; Wang, Weimin; Athalye, Rahul A.; Moser, Dave; Crowe, Eliot; Bengtson, Nick; Effinger, Mark; Webster, Lia; Hatten, Mike

2011-09-19T23:59:59.000Z

317

Retrofitting sacrificial anodes in the Arabian Gulf  

SciTech Connect (OSTI)

Cathodic protection (CP) systems of 15 fixed offshore platforms were analyzed. These steel template structures, off the coast of the United Arab Emirates, are in water depths between 125 and 185 ft (115 and 170 m). A systematic survey program exists to monitor the CP systems including assessment of sacrificial anode depletion, and measurement of anode and platform potentials. These data are used to design new anode retrofits for older structures to extend CP system life. An analysis of field survey measurements, the method used to evaluate new anode needs, and locations for retrofit anodes are described.

Kiefer, J.H.; Thomason, W.H.; Alansari, N.G.

1999-08-01T23:59:59.000Z

318

Indoor air environment and night cooling energy efficiency of a southern German passive public school building operated by the heat recovery air conditioning unit  

Science Journals Connector (OSTI)

Abstract The recently built school building has adopted a novel heat recovery air conditioning system. Heat recovery efficiency of the heat recovery facility and energy conservation ratio of the air conditioning unit were analytically modeled, taking the ventilation networks into account. Following that, school classroom displacement ventilation and its thermal stratification have been numerically investigated concerning the effects of the heat flow flux of passive cooling within the ceiling concrete in the classroom due to night ventilation in summer which could result in cooling energy storage. Numerical results indicate that the promotion of passive cooling can simultaneously decrease the volume averaged indoor temperatures and the non-uniformity of indoor thermal distributions. Subsequent energy performance analysis demonstrates that classroom energy demands for ventilation and cooling could be reduced with the promotion of heat recovery efficiency of the ventilation facility, and the energy conservation ratio of the air-cooling unit decreases with the increasing temperatures of exhaust air and the heat flux value for passive cooling within the classroom ceiling concrete. Fitting correlations of heat recovery ventilation and cooling energy conservation have been presented.

Yang Wang; Fu-Yun Zhao; Jens Kuckelkorn; Xiao-Hong Li; Han-Qing Wang

2014-01-01T23:59:59.000Z

319

Removal of submicron particles using a carbon fiber ionizer-assisted medium air filter in a heating, ventilation, and air-conditioning (HVAC) system  

Science Journals Connector (OSTI)

Laboratory tests of particle removal were performed with a pair of carbon fiber ionizers installed upstream of a glass fiber air filter. For air flow face velocities of 0.4, 0.6, and 0.8m/s, the overall particle removal efficiencies of the filter for all submicron particles were 17%, 16%, and 14%, respectively, when the ionizers were not turned on. These values increased to 27%, 23%, and 19%, respectively, when the ionizers were used to generate ions of 6.0נ109ions/cm3 in concentration. The carbon fiber ionizers were then installed in front of a glass fiber air filter located in a heating, ventilation, and air-conditioning (HVAC) system. Field tests were performed in a test office room with a total indoor particle concentration of 2.2נ104particles/cm3. When the flow rate was 75 cubic meters per hour (CMH), the steady-state values of the total indoor particle concentrations using the glass fiber air filter with and without ionizers decreased to 0.87נ104particles/cm3 and 1.15נ104particles/cm3, respectively, resulting in a 25% decrease of the ionizer effect. When the operation flow rate was increased to 115 and 150CMH, the effect of the ionizer decreased to 19% and 17%, respectively. These experimental data match the results calculated using a mass-balance model whose parameters were determined from laboratory tests.

Jae Hong Park; Ki Young Yoon; Jungho Hwang

2011-01-01T23:59:59.000Z

320

RETROFIT: A SOFTWARE TO SOLVE OPTIMIZATION AND IDENTIFICATION PROBLEMS APPLIED TO BUILDING ENERGY  

E-Print Network [OSTI]

under forecast weather or use conditions. Demand response strategies in smart grids consist in adjusting- els. ReTrofiT is first of all a simulation tool for evaluating building thermal behaviour can be obtained if the internal parameters of the model are calibrated using on-site measurements

Boyer, Edmond

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Experimental evaluation of automotive air-conditioning using HFC-134a and HC-134a  

Science Journals Connector (OSTI)

An experimental study to evaluate the energy consumption of an automotive air conditioning is presented. In this study these refrigerants will be tested using the experimental rig which simulated the actual cars as a cabin complete with a cooling system component of the actual car that is as the blower evaporator condenser radiators electric motor which acts as a vehicle engine and then the electric motor will operate the compressor using a belt and pulley system as well as to the alternator will recharge the battery. The compressor working with the fluids HFC-134a and HC-134a and has been tested varying the speed in the range 1000 1500 2000 and 2500 rpm. The measurements taken during the one hour experimental periods at 2-minutes interval times for temperature setpoint of 20C with internal heat loads 0 500 700 and 1000 W. The final results of this study show an overall better energy consumption of the HFC-134a compared with the HC-134a.

Azhar Abdul Aziz

2012-01-01T23:59:59.000Z

322

Relationship between the merit factor of thermoelectric materials and the air conditioning unit of urban electric cars  

SciTech Connect (OSTI)

The main benefit of electric cars is to reduce air pollution in cities that is thus desirable to equip them with non polluting air conditioning units and this rules out frigorific compressors operating with CFC. The planned replacement of CFC by HFC is at best an interim solution. The best solution is certainly to use thermoelectric air conditioning units, which are inherently pollution-free. However, these have a fairly low COPF when compared to traditional compressor units. We study the relationship between the cooling of the interior of urban electric cars and the merit factor of the thermoelectric material in their Peltier unit. This should help provide concrete target properties of future T E materials. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

Buffet, J. [Counsulting Engineer, 2 av. DODE de la BRUNERIE 75016 Paris (France)

1994-08-10T23:59:59.000Z

323

Puget Sound Energy - Commercial Retrofit Energy Efficiency Grant Program |  

Broader source: Energy.gov (indexed) [DOE]

Puget Sound Energy - Commercial Retrofit Energy Efficiency Grant Puget Sound Energy - Commercial Retrofit Energy Efficiency Grant Program Puget Sound Energy - Commercial Retrofit Energy Efficiency Grant Program < Back Eligibility Commercial Fed. Government Industrial Local Government Nonprofit State Government Savings Category Heating & Cooling Commercial Heating & Cooling Heating Cooling Home Weatherization Construction Commercial Weatherization Design & Remodeling Manufacturing Other Heat Pumps Appliances & Electronics Commercial Lighting Lighting Program Info State District of Columbia Program Type Utility Grant Program Rebate Amount Up to 70% of installed cost of qualifying retrofit projects or up to 50% of qualifying lighting upgrades. Provider Puget Sound Energy PSE can provide a custom retrofit grant for any energy-efficiency project

324

Building America Whole-House Solutions for Existing Homes: Cascade Apartments- Deep Energy Multifamily Retrofit (Fact Sheet)  

Broader source: Energy.gov [DOE]

In December of 2009-10, King County Housing Authority implemented energy retrofit improvements in the Cascade multifamily community, located in Kent, Washington, which resulted in annual energy cost savings of 22%, improved comfort and air quality for residents, and increased durability of the units.

325

E-Print Network 3.0 - air conditioning committee Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Committee Meeting Minutes January 16, 2008 Darden 126 Attendees... Transit Service, Maintenance Shop, Operations, Administration, Air and HSCMedical Center. Major Source: Whittle,...

326

E-Print Network 3.0 - air conditioning devices Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Interaction Institute, Carnegie... cities of the developing world, urban air pollution has worsened, which has been detrimental... to the health of their populations. At...

327

INFLUENCE OF DESIGN AND OPERATING CONDITIONS ON UNDERFLOOR AIR DISTRIBUTION (UFAD) SYSTEM PERFORMANCE  

E-Print Network [OSTI]

zones. Variable speed fan coil units (VSFCU) provide air tounit (AHU) including an airside economizer, a chilled water cooling coil, and a relief fan.

2012-01-01T23:59:59.000Z

328

Phillip Burton Federal Building EMCS Retrofit Analysis  

E-Print Network [OSTI]

and Renewable Energy, Office of Building Technology and Community Systems, and the Federal Energy ManagementPhillip Burton Federal Building EMCS Retrofit Analysis Interim Report March 1999 Rick Diamond, Tim This report presents the interim results of analyses carried out in the Phillip Burton Federal Building in San

Diamond, Richard

329

Deep Energy Retrofits: A Southwestern Case Study  

E-Print Network [OSTI]

to a carbon-neutral environment, but we can remodel our way there. Over the course of seven years, green-buildingDeep Energy Retrofits: A Southwestern Case Study Heading Toward Net Zero Thursday, December 2, 2010 ASU Project Manager, Energize Phoenix Greg L. Brown Principal, Ecosense, LLC We cannot build our way

Zhang, Junshan

330

Greenbuilt Retrofit Test House Final Report  

SciTech Connect (OSTI)

The Greenbuilt house, is an all-electric, 1980's era home in the eastern Sacramento suburb of Fair Oaks that was retrofit by Greenbuilt Construction as part of Sacramento Municipal Utility District's (SMUD) Energy Efficient Remodel Demonstration (EERD) Program. The project was a joint effort between the design-build team at Greenbuilt Construction, led by Jim Bayless, SMUD and their project manager Mike Keesee, and the National Renewable Energy Laboratory (NREL). The goal of the Energy Efficient Remodel Demonstration program is to work with local builders to renovate homes with cost-effective energy efficient retrofit measures. The homes remodeled under the EERD program are intended to showcase energy efficient retrofit options for homeowners and other builders. The Greenbuilt house is one of five EERD projects that NREL has supported. NREL's main role in these projects is to provide energy analysis and to monitor the home's performance after the retrofit to verify that the energy consumption is in line with the modeling predictions. NREL also performed detailed monitoring on the more innovative equipment included in these remodels, such as an add-on heat pump water heater.

Sparn, B.; Hudon, K.; Earle, L.; Booten, C.; Tabares-Velasco, P. C.; Barker, G.; Hancock, C. E.

2014-06-01T23:59:59.000Z

331

Assessment of adsorber bed designs in waste-heat driven adsorption cooling systems for vehicle air conditioning and refrigeration  

E-Print Network [OSTI]

Assessment of adsorber bed designs in waste-heat driven adsorption cooling systems for vehicle air conditioning Finned tube adsorber bed Specific cooling power Adsorber bed to adsorbent mass ratio a b s t r a c t Adsorber bed design strongly affects the performance of waste-heat driven adsorption cooling systems (ACS

Bahrami, Majid

332

Problem of Vain Energy Consumption in a VAV Air Conditioning System Shared By an Inner Zone and Exterior Zone  

E-Print Network [OSTI]

in winter and summer. Taking a practical project as example, this paper analyzes the energy consumption of a VAV air conditioning system that is shared by inner zone and exterior zone. The paper also points out the serious problem of useless energy...

Wenji, G.; Ling, C.; Dongdong, L.; Mei, S.; Li, Z.

2006-01-01T23:59:59.000Z

333

ENSC 461 PROJECT: Next generation air conditioning systems for vehicles Assigned date: Feb. 21, 2011 Due date: April 11, 2011  

E-Print Network [OSTI]

to significant power consumption of vapour-compression systems, finding a new "green" refrigerant is another vehicles (HEVs), as it is the second most energy consuming system after the electric motor. Further, HVAC air conditioning systems used in the automotive industry are based on vapour-compression refrigeration

Bahrami, Majid

334

Une mthode simple de prvision des tempratures de l'air et de la surface du sol en conditions de geles  

E-Print Network [OSTI]

Une méthode simple de prévision des températures de l'air et de la surface du sol en conditions de l'air et du sol, on a tracé des abaques qui expriment le refroidissement en conditions de ciel clair frost conditions. A one-dimensional model of nocturnal change in soil and air temperature has been used

Paris-Sud XI, Université de

335

Influence of Mobile Air-Conditioning on Vehicle Emissions and Fuel Consumption:? A Model Approach for Modern Gasoline Cars Used in Europe  

Science Journals Connector (OSTI)

However, apart from studies involving MOBILE6 in the United States (1) and other U. S. studies (2?5), air-conditioning activity in relation to meteorological conditions has not been thoroughly investigated. ... For manual air conditioners, a good setting was sought before the test and the knobs for cooling and ventilation were readjusted if the temperature drifted more than 1 C. ... The temperatures of the conditioned air range from 5 to 11 C. ...

Martin F. Weilenmann; Ana-Marija Vasic; Peter Stettler; Philippe Novak

2005-11-04T23:59:59.000Z

336

Alternative Fuels Data Center: Diesel Vehicle Retrofit and Improvement  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Diesel Vehicle Diesel Vehicle Retrofit and Improvement Grants to someone by E-mail Share Alternative Fuels Data Center: Diesel Vehicle Retrofit and Improvement Grants on Facebook Tweet about Alternative Fuels Data Center: Diesel Vehicle Retrofit and Improvement Grants on Twitter Bookmark Alternative Fuels Data Center: Diesel Vehicle Retrofit and Improvement Grants on Google Bookmark Alternative Fuels Data Center: Diesel Vehicle Retrofit and Improvement Grants on Delicious Rank Alternative Fuels Data Center: Diesel Vehicle Retrofit and Improvement Grants on Digg Find More places to share Alternative Fuels Data Center: Diesel Vehicle Retrofit and Improvement Grants on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type

337

Retrofit Energy Savings Estimation Model | Open Energy Information  

Open Energy Info (EERE)

Retrofit Energy Savings Estimation Model Retrofit Energy Savings Estimation Model Jump to: navigation, search Tool Summary Name: Retrofit Energy Savings Estimation Model Agency/Company /Organization: Lawrence Berkeley National Laboratory Sector: Energy Focus Area: Buildings Topics: Resource assessment Resource Type: Software/modeling tools User Interface: Desktop Application Website: btech.lbl.gov/tools/resem/resem.htm Cost: Free Language: English References: Retrofit Energy Savings Estimation Model[1] Logo: Retrofit Energy Savings Estimation Model RESEM, the Retrofit Energy Savings Estimation Model, is a PC-based tool designed to allow Department of Energy (DOE) Institutional Conservation Program (ICP) staff and participants to reliably determine the energy savings directly caused by ICP-supported retrofit measures implemented in a

338

Solid-State Lighting: Retrofit Financial Analysis Tool  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Market-Based Programs Printable Version Share this resource Send a link to Solid-State Lighting: Retrofit Financial Analysis Tool to someone by E-mail Share Solid-State Lighting: Retrofit Financial Analysis Tool on Facebook Tweet about Solid-State Lighting: Retrofit Financial Analysis Tool on Twitter Bookmark Solid-State Lighting: Retrofit Financial Analysis Tool on Google Bookmark Solid-State Lighting: Retrofit Financial Analysis Tool on Delicious Rank Solid-State Lighting: Retrofit Financial Analysis Tool on Digg Find More places to share Solid-State Lighting: Retrofit Financial Analysis Tool on AddThis.com... LED Lighting Facts CALiPER Program Standards Development Technical Information Network Gateway Demonstrations Municipal Consortium About the Consortium FAQs

339

The evaluation of a 4000-home geothermal heat pump retrofit at Fort Polk, Louisiana: Final Report  

SciTech Connect (OSTI)

This report documents an independent evaluation of an energy retrofit of 4,003 family housing units at Fort Polk, Louisiana, under an energy savings performance contract (ESPC). Replacement of the heating, cooling, and water heating systems in these housing units with geothermal heat pumps (GHPs) anchored the retrofit; low-flow shower heads and compact fluorescent lighting were also installed, as well as attic insulation where needed. Statistically valid findings indicate that the project will save 25.8 million kWh, or 32.5% of the pre-retrofit whole-community electrical consumption, and 100% of the whole-community natural gas previously used for space conditioning and water heating (260,000 therms) in a typical meteorological year. At the end-use level, the GHPs were found to save about 42% of the pre-retrofit electrical consumption for heating, cooling, and water heating in housing units that were all-electric in the pre-retrofit period. This report also demonstrates an improved method of predicting energy savings. Using an engineering model calibrated to pre-retrofit energy use data collected in the field, the method predicted actual energy savings on one of the electric feeders at Fort Polk with a very high degree of accuracy. The accuracy of this model was in turn dependent on data-calibrated models of the geothermal heat pump and ground heat exchanger that are described in this report. In addition this report documents the status of vertical borehole ground heat exchanger (BHEx) design methods at the time this project was designed, and demonstrates methods of using data collected from operating GHP systems to benchmark BHEx design methods against a detailed engineering model calibrated to date. The authors also discuss the ESPC`s structure and implementation and how the experience gained here can contribute to the success of future ESPCs.

Hughes, P.J.; Shonder, J.A.

1998-03-01T23:59:59.000Z

340

Proposal for the award of a contract for the design, supply, installation and commissioning of an HVAC (Heating, Ventilation and Air Conditioning) system for Building 3862  

E-Print Network [OSTI]

Proposal for the award of a contract for the design, supply, installation and commissioning of an HVAC (Heating, Ventilation and Air Conditioning) system for Building 3862

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

2014-06-23 Issuance: Energy Conservation Standards for Walk-in Coolers and Freezers; Air-Conditioning, Heating, & Refrigeration Institute Petition for Reconsideration  

Broader source: Energy.gov [DOE]

This document is the agency response to the Energy Conservation Standards for Walk-in Coolers and Freezers; Air-Conditioning, Heating, & Refrigeration Institute Petition for Reconsideration.

342

Proposal for the award of a contract for the design, supply, installation and commissioning of Heating, Ventilation and Air-Conditioning (HVAC) systems for the PS accelerator infrastructure  

E-Print Network [OSTI]

Proposal for the award of a contract for the design, supply, installation and commissioning of Heating, Ventilation and Air-Conditioning (HVAC) systems for the PS accelerator infrastructure

2012-01-01T23:59:59.000Z

343

Proposal for the award of a contract for dismantling, removal and packaging of the existing Heating, Ventilation and Air-Conditioning (HVAC) systems in the PS tunnel  

E-Print Network [OSTI]

Proposal for the award of a contract for dismantling, removal and packaging of the existing Heating, Ventilation and Air-Conditioning (HVAC) systems in the PS tunnel

2012-01-01T23:59:59.000Z

344

Occupant-in-Place Energy Efficiency Retrofit in a Group Home for 30% Energy Savings in Climate Zone 4  

SciTech Connect (OSTI)

Energy efficiency retrofits (EERs) face many challenges on the path to scalability. Limited budgets, cost effectiveness, risk factors, and accessibility impact the type and the extent of measures that can be implemented feasibly to achieve energy savings goals. Group home retrofits can face additional challenges than those in single family homes - such as reduced access (occupant-in-place restrictions) and lack of incentives for occupant behavioral change. This project studies the specification, implementation, and energy savings from an EER in a group home, with an energy savings goal of 30%. This short term test report chronicles the retrofit measures specified, their projected cost-effectiveness using building energy simulations, and the short term test results that were used to characterize pre-retrofit and post-retrofit conditions. Additionally, the final report for the project will include analysis of pre- and post-retrofit performance data on whole building energy use, and an assessment of the energy impact of occupant interface with the building (i.e., window operation). Ultimately, the study's results will be used to identify cost effective EER measures that can be implemented in group homes, given constraints that are characteristic of these buildings. Results will also point towards opportunities for future energy savings.

Moore, M.

2013-08-01T23:59:59.000Z

345

Case Study: The Effective Use of an Extensive Logical rule Based Data Analytics Approach in Establishing Root Cause of Performance Issues in Widespread Deployments of Unitary Space Air Conditioning Units  

E-Print Network [OSTI]

Today a significant percentage of office spaces are air conditioned using widely deployed unitary systems, either Fan Coil Units (FCU) or Variable Air Volume (VAV) boxes, to achieve high degrees of air conditioned zonal control. However establishing...

Brady, N.

2013-01-01T23:59:59.000Z

346

Implementation of Smart Operation Strategies for Air-Conditioning and Lighting Systems for Ministries Complex in the State of Kuwait  

E-Print Network [OSTI]

of the smart operation strategies. These savings led to a reduction of $1,500 per typical summer day of the MEW fuel bill and 8,918 kg/day of CO2 emissions. To make MC building more energy efficient, it is recommended to retrofit AHUs and secondary chilled...

Al-Mulla, A.; Maheshwari, G. P.; Al-Nakib, D.; Ishaqali, H.

347

Data and Analytics to Inform Energy Retrofit of High Performance Buildings  

SciTech Connect (OSTI)

Buildings consume more than one-third of the world?s primary energy. Reducing energy use in buildings with energy efficient technologies is feasible and also driven by energy policies such as energy benchmarking, disclosure, rating, and labeling in both the developed and developing countries. Current energy retrofits focus on the existing building stocks, especially older buildings, but the growing number of new high performance buildings built around the world raises a question that how these buildings perform and whether there are retrofit opportunities to further reduce their energy use. This is a new and unique problem for the building industry. Traditional energy audit or analysis methods are inadequate to look deep into the energy use of the high performance buildings. This study aims to tackle this problem with a new holistic approach powered by building performance data and analytics. First, three types of measured data are introduced, including the time series energy use, building systems operating conditions, and indoor and outdoor environmental parameters. An energy data model based on the ISO Standard 12655 is used to represent the energy use in buildings in a three-level hierarchy. Secondly, a suite of analytics were proposed to analyze energy use and to identify retrofit measures for high performance buildings. The data-driven analytics are based on monitored data at short time intervals, and cover three levels of analysis ? energy profiling, benchmarking and diagnostics. Thirdly, the analytics were applied to a high performance building in California to analyze its energy use and identify retrofit opportunities, including: (1) analyzing patterns of major energy end-use categories at various time scales, (2) benchmarking the whole building total energy use as well as major end-uses against its peers, (3) benchmarking the power usage effectiveness for the data center, which is the largest electricity consumer in this building, and (4) diagnosing HVAC equipment using detailed time-series operating data. Finally, a few energy efficiency measures were identified for retrofit, and their energy savings were estimated to be 20percent of the whole-building electricity consumption. Based on the analyses, the building manager took a few steps to improve the operation of fans, chillers, and data centers, which will lead to actual energy savings. This study demonstrated that there are energy retrofit opportunities for high performance buildings and detailed measured building performance data and analytics can help identify and estimate energy savings and to inform the decision making during the retrofit process. Challenges of data collection and analytics were also discussed to shape best practice of retrofitting high performance buildings.

Hong , Tianzhen; Yang, Le; Hill, David; Feng , Wei

2014-01-25T23:59:59.000Z

348

Energy-Saving Design for Pressure Difference Control in Variable Flow Air Conditioning Systems  

E-Print Network [OSTI]

Zhang Senior Engineer Postgraduate Wuhan Architectural Design Institute, Wuhan, China, 430014 Chenyh918@263.net Abstract: This paper analyzes energy-saving design for pressure-difference control in a variable flow air...

Chen, Y.; Zhang, Z.

2006-01-01T23:59:59.000Z

349

Economic Analysis of a Waste Water Resource Heat Pump Air-Conditioning System in North China  

E-Print Network [OSTI]

This paper describes the situation of waste water resource in north China and the characteristics and styles of a waste water resource heat pump system, and analyzes the economic feasibility of a waste water resource heat pump air...

Chen, H.; Li, D.; Dai, X.

2006-01-01T23:59:59.000Z

350

E-Print Network 3.0 - air-borne dust conditions Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

L., Guo, J., Dan, M., Zhang, W., Wang, Z., and Hao, Z.: The air-borne particulate pollution... Discussions Regional characteristics of spring Asian dust and its impact on...

351

Study of Air Ingress Across the Duct During the Accident Conditions  

SciTech Connect (OSTI)

The goal of this project is to study the fundamental physical phenoena associated with air ingress in very high temperature reactors (VHTRs). Air ingress may occur due to a nupture of primary piping and a subsequent breach in the primary pressure boundary in helium-cooled and graphite-moderated VHTRs. Significant air ingress is a concern because it introduces potential to expose the fuel, graphite support rods, and core to a risk of severe graphite oxidation. Two of the most probable air ingress scenarios involve rupture of a control rod or fuel access standpipe, and rupture in the main coolant pipe on the lower part of the reactor pressure vessel. Therefor, establishing a fundamental understanding of air ingress phenomena is critical in order to rationally evaluate safety of existing VHTRs and develop new designs that mimimize these risks. But despite this importance, progress toward development these predictive capabilities has been slowed by the complex nature of the underlaying phenomena. The combination of interdiffusion among multiple species, molecular diffusion, natural convection, and complex geometries, as well as the multiple chemical reactions involved, impose significant roadblocks to both modeling and experiment design. The project team will employ a coordinated experimental and computational effort that will help gain a deeper understanding of multiphased air ingress phenomena. THis project will enhance advanced modeling and simulation methods, enabling calculation of nuclear power plant transients and accident scenarios with a high degree of confidence. The following are the project tasks: Perform particle image velocimetry measurement of multiphase air ingresses Perform computational fluid dynamics analysis of air ingress phenomena

Hassan, Yassin

2013-05-06T23:59:59.000Z

352

Combustion and \\{NOx\\} emissions of biomass-derived syngas under various gasification conditions utilizing oxygen-enriched-air and steam  

Science Journals Connector (OSTI)

The purpose of this study is to investigate the \\{NOx\\} emissions from combustion of syngas derived from gasification of three different biomass feedstock (i.e., pine, mapleoak mixture, and seed corn) at different oxygen-enriched-air and steam conditions. Three different oxygen-enriched-air and steam conditions were tested for each feedstock, thus resulting in nine different sets of syngas. The biomass-derived syngas was burned in an industrial burner that was integrated into the gasification system. The gasifier and burner are rated at 800kW and 879kW thermal, respectively. For each set of biomass-derived syngas, \\{NOx\\} emissions were measured at different burner operating conditions including various heat rates and equivalence ratios using emission analyzers with chemiluminescence technology. All the combustion test conditions are in the lean mixture ranges in order to avoid the peak temperature limitation of both the burner and combustion chamber. Results show that \\{NOx\\} emissions using syngas obtained from woody feedstock decrease almost linearly as the combustion mixture becomes leaner and the heat rate decreases. When compared to natural gas, syngas from both woody feedstock generates higher \\{NOx\\} emissions even when the heat rates are comparable, indicating that fuel \\{NOx\\} formation is highly important in biomass-derived syngas combustion. In contrast to syngas from woody feedstock, syngas from seed corn results in peak \\{NOx\\} emissions before \\{NOx\\} decreases with leaner conditions. The trend is observed for all fuel flow rates and all oxygen-enriched-air and steam conditions of seed corn-derived syngas. Among the three feedstock, seed corn has the highest nitrogen content which yields the highest ammonia concentration in syngas, which, in turn, results in the highest \\{NOx\\} emissions for all test conditions. Overall, the \\{NOx\\} emissions from seed corn-derived syngas combustion are approximately in the range of 450900ppm higher compared to those from wood-derived syngas combustion.

Cuong Van Huynh; Song-Charng Kong

2013-01-01T23:59:59.000Z

353

Cascade Apartments: Deep Energy Multifamily Retrofit  

SciTech Connect (OSTI)

In December of 2009-10, King County Housing Authority (KCHA) implemented energy retrofit improvements in the Cascade multifamily community, located in Kent, Washington (marine climate.)This research effort involved significant coordination from stakeholders KCHA, WA State Department of Commerce, utility Puget Sound Energy, and Cascade tenants. This report focuses on the following three primary BA research questions : 1. What are the modeled energy savings using DOE low income weatherization approved TREAT software? 2. How did the modeled energy savings compare with measured energy savings from aggregate utility billing analysis? 3. What is the Savings to Investment Ratio (SIR) of the retrofit package after considering utility window incentives and KCHA capitol improvement funding.

Gordon, A.; Mattheis, L.; Kunkle, R.; Howard, L.; Lubliner, M.

2014-02-01T23:59:59.000Z

354

Retrofit California Overview and Final Reports  

SciTech Connect (OSTI)

Energy efficiency retrofits (also called upgrades) are widely recognized as a critical component to achieving energy savings in the building sector to help lower greenhouse gas (GHG) emissions. To date, however, upgrades have accounted for only a small percentage of aggregate energy savings in building stock, both in California and nationally. Although the measures and technologies to retrofit a building to become energy efficient are readily deployed, establishing this model as a standard practice remains elusive. Retrofit California sought to develop and test new program models to increase participation in the energy upgrade market in California. The Program encompassed 24 pilot projects, conducted between 2010 and mid-2013 and funded through a $30 million American Recovery and Reinvestment Act (ARRA) grant from the U.S. Department of Energys (DOE) Better Buildings Neighborhood Program (BBNP). The broad scope of the Program can be seen in the involvement of the following regionally based Grant Partners: Los Angeles County (as prime grantee); Association of Bay Area Governments (ABAG), consisting of: o StopWaste.org for Alameda County o Regional Climate Protection Authority (RCPA) for Sonoma County o SF Environment for the City and County of San Francisco o City of San Jose; California Center for Sustainable Energy (CCSE) for the San Diego region; Sacramento Municipal Utilities District (SMUD). Within these jurisdictions, nine different types of pilots were tested with the common goal of identifying, informing, and educating the people most likely to undertake energy upgrades (both homeowners and contractors), and to provide them with incentives and resources to facilitate the process. Despite its limited duration, Retrofit California undoubtedly succeeded in increasing awareness and education among home and property owners, as well as contractors, realtors, and community leaders. However, program results indicate that a longer timeframe will be needed to transform the market and establish energy retrofits as the new paradigm. Innovations such as Flex Path, which came about because of barriers encountered during the Program, have already shown promise and are enabling increased participation. Together, the pilots represent an unprecedented effort to identify and address market barriers to energy efficiency upgrades and to provide lessons learned to shape future program planning and implementation. The statistics reflects the scope of the marketing and outreach campaigns, which tested a variety of approaches to increase understanding of the benefits of energy upgrades to drive participation in the Program. More traditional methods such as TV and radio advertisements were complimented by innovative community based social marketing campaigns that sought to leverage the trusted status of neighborhood organizations and leaders in order to motivate their constituents to undertake retrofits. The remainder of this report provides an overview of Retrofit California including brief summaries of the pilots main components and highlights, followed by the major findings or takeaway lessons from the approaches that were tested. Eleven of the pilots will be continued, with modifications, under the ratepayer-funded Regional Energy Networks. Involvement in the RENS by many of the Retrofit California partners will ensure that early lessons learned are carried forward to guide future programs for energy upgrades in California.

Choy, Howard; Rosales, Ana

2014-03-01T23:59:59.000Z

355

Comparison of Home Retrofit Programs in Wisconsin  

SciTech Connect (OSTI)

To explore ways to reduce customer barriers and increase home retrofit completions, several different existing home retrofit models have been implemented in the state of Wisconsin. This study compared these programs' performance in terms of savings per home and program cost per home to assess the relative cost-effectiveness of each program design. However, given the many variations in these different programs, it is difficult to establish a fair comparison based on only a small number of metrics. Therefore, the overall purpose of the study is to document these programs' performance in a case study approach to look at general patterns of these metrics and other variables within the context of each program. This information can be used by energy efficiency program administrators and implementers to inform home retrofit program design. Six different program designs offered in Wisconsin for single-family energy efficiency improvements were included in the study. For each program, the research team provided information about the programs' approach and goals, characteristics, achievements and performance. The program models were then compared with performance results -- program cost and energy savings -- to help understand the overall strengths and weaknesses or challenges of each model.

Cunningham, K.; Hannigan, E.

2013-03-01T23:59:59.000Z

356

Enhanced Operation Strategies for Air-Conditioning and Lighting Systems Toward Peak Power Reduction for an Office Building in Kuwait  

E-Print Network [OSTI]

Enhanced?Operation?Strategies?for?Air? Conditioning?and?Lighting? Systems?Toward?Peak?Power?Reduction? for?an?Office?Building?in?Kuwait F. Alghimlas A. Al-Mulla G.P. Maheshwari D. Al-Nakib Building and Energy Technologies Department... Environment and Urban Development Division ICEBO 2012 Manchester, United Kingdom October 23-26, 2012 Electricity?Use?by?Sector?in?Kuwait Percentages?of?Primary?Energy?Utilization Percentages?of?Electricity?Utilization Yearly?Increase?in...

Alghimlas, F.; Al-Mulla, A.; Maheshwari, G.P.; Al-Nakib, D.

2012-01-01T23:59:59.000Z

357

Performance and evaluation of gas-engine-driven rooftop air conditioning equipment at the Willow Grove Naval Air Station. Final report (revised October 21, 1996)  

SciTech Connect (OSTI)

The performance was evaluated of a new US cooling technology that has been installed for the first time at a federal facility. The technology is a 15-ton natural gas-engine-driven rooftop air conditioning unit made by Thermo King. Two units were installed to serve the Navy Exchange at Willow Grove. The savings potential at Willow Grove is described and that in the federal sector estimated. Conditions for implementation are discussed. In summary, the new technology is generally cost-effective at sites where marginal electricity cost (per MBtu at the meter) is more than 4 times the marginal gas cost (per MBtu at the meter) and annual full-load-equivalent cooling hours exceed 2,000.

Armstrong, P.R.; Katipamula, S.

1996-10-01T23:59:59.000Z

358

Residential Retrofits in the Southeast: A Performance Update  

Broader source: Energy.gov (indexed) [DOE]

Residential Retrofits in Residential Retrofits in the Southeast: A Performance Update Roderick K. Jackson Ph.D Oak Ridge National Laboratory for Building America Stakeholder Meeting 3/1/2012 2 Managed by UT-Battelle for the U.S. Department of Energy Project Goals 1. Can we retrofit existing homes to achieve energy savings of more than 30% 2. Can we cost effectively retrofit existing homes to achieve energy savings of more than 30% 3. Will homeowners pay for retrofits that achieve energy savings of more than 30% 4. Will reality (i.e. utility bills) match the projected energy savings * In the event any of the answers to questions 1-4 is NO, what are obstacles to YES 3 Managed by UT-Battelle for the U.S. Department of Energy Project Overview Nine homes received retrofits with projected source energy

359

Building Media, Inc. (Du Pont) (Building America Retrofit Alliance) | Open  

Open Energy Info (EERE)

Media, Inc. (Du Pont) (Building America Retrofit Alliance) Media, Inc. (Du Pont) (Building America Retrofit Alliance) Jump to: navigation, search Name Building Media, Inc. (Du Pont) (Building America Retrofit Alliance) Place Wilmington, DE Website http://www.prweb.com/releases/ References Building America Retrofit Alliance Press Release[1] BMI Website[2] DuPont Website[3] Information About Partnership with NREL Partnership with NREL Yes Partnership Type Incubator Partnering Center within NREL Electricity Resources & Building Systems Integration LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! Building Media, Inc. (Du Pont) (Building America Retrofit Alliance) is a company located in Wilmington, DE. References ↑ "Building America Retrofit Alliance Press Release" ↑ "BMI Website"

360

Building Technologies Office: Renovate and Retrofit Commercial Buildings  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Renovate and Retrofit Commercial Buildings for Energy Efficiency Renovate and Retrofit Commercial Buildings for Energy Efficiency Photo of the Denver skyline with Wells Fargo Center building in the center of the image and the Rocky Mountains in the background. A local law firm upgraded one floor of their offices in the Wells Fargo Center (center) in Denver as part of Commercial Building Partnerships. Renovation, retrofit and refurbishment of existing buildings represent an opportunity to upgrade the energy performance of commercial building assets for their ongoing life. Often retrofit involves modifications to existing commercial buildings that may improve energy efficiency or decrease energy demand. In addition, retrofits are often used as opportune time to install distributed generation to a building. Energy efficiency retrofits can reduce the operational costs, particularly in older buildings, as well as help to attract tenants and gain a market edge.

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Influence of Fault and Optimization of PID Parameters in Building Air-Conditioning System  

E-Print Network [OSTI]

200 400 600 800 0 200 400 600 800 8 10 12 14 16 18 Supply air flow volume A ir flo w v ol um e[ m 3 / h] A ir flo w v ol um e[ m 3 / h] (b)Supply air flow volume Time[hour] 0 10 20 0.6 0.8 1 1.2 1....4 18161412108 Time[hour] Secondary inlet water temp. Secondary outlet water temp. Secondary pump water flow volume w at er fl ow v ol um e[ m 3 / h] Te m p. [d eg .C ] (d)Secondary inlet & outlet water temp. / water flow volume 10...

Kuniyoshi, K.; Akashi, Y.; Sumiyoshi, D.; Song, Y.

2005-01-01T23:59:59.000Z

362

Fluidized-bed retrofit a practical alternative to FGD  

SciTech Connect (OSTI)

A comparison is made between the costs of flue-gas desulphurization retrofit to a 112 MW pf-fired boiler, fluidized-bed combustion retrofit to the boiler, and a new fluidized-bed boiler. Breakdowns are given for capital costs, operating and maintenance costs and the busbar cost of energy for a 20 year unit life. The analysis shows that fbc is a viable option for the retrofit of many existing boilers from both a technical and economic viewpoint.

Stringfellow, T.E.

1984-02-01T23:59:59.000Z

363

Utilization of computational fluid dynamics technique in low NOx burner/furnace retrofits  

SciTech Connect (OSTI)

A computational fluid dynamics (CFD) technique has been utilized to provide design guidance for retrofitting low NOx combustion systems and incorporating associated furnace modifications into existing utility boilers. The CFD program utilized is FW-FIRES (Fossil fuel, Water-walled Furnace Integrated Reaction and Emission Simulation) which simulates furnace combustion, heat transfer and pollutant formation based on fundamental principals of mass, momentum and energy conservations. The program models the gas flow field as a three-dimensional turbulent reacting continuum and the particle flow as a series of discrete particle trajectories through the gas continuum. Chemical reaction, heat transfer, and pollutant formation mechanisms are incorporated in the program. FW-FIRES furnace simulation of low NOx combustion system retrofits has been performed for various furnace configurations including front wall-fired, front and real wall-fired, and tangentially-fired furnaces, to determine the effects of burner/furnace modifications on the NOx emission, furnace exit gas temperature, furnace heat absorption, unburned carbon, and furnace wall corrosion. For front wall-fired, and front and real wall-fired furnaces, the NOx emission requirement is met by the use of Foster Wheeler lox NOx burners and overfire air (OFA) staging. Studies of burner and OFA quantify and spacing are conducted to limit NOx emission and unburned carbon to acceptable levels. A major concern in once-through supercritical units with OFA is furnace wall corrosion which is caused by high furnace wall metal temperature and corrosive hydrogen sulfide (H{sub 2}S) created in a reducing atmosphere from part of coal sulfur. The FW-FIRES code is used to minimize this corrosion potential by selecting the proper location and quantity of boundary air. A simulation of tangentially-fired unit, which has been retrofitted with low NOx burners, is used to study the effect of the burner tilt on the furnace exit gas temperature. This paper details the basis and results of several CFD analyses conducted for potential retrofit programs.

Cho, S.M.; Seltzer, A.H.; Ma, J.; Steitz, T.H.; Grusha, J.; Cole, R.W.

1999-07-01T23:59:59.000Z

364

City of Los Angeles - Green Building Retrofit Requirement | Department of  

Broader source: Energy.gov (indexed) [DOE]

Green Building Retrofit Requirement Green Building Retrofit Requirement City of Los Angeles - Green Building Retrofit Requirement < Back Eligibility Local Government Savings Category Heating & Cooling Commercial Heating & Cooling Heating Cooling Home Weatherization Construction Commercial Weatherization Design & Remodeling Heat Pumps Appliances & Electronics Commercial Lighting Lighting Insulation Manufacturing Buying & Making Electricity Solar Water Heating Program Info State California Program Type Energy Standards for Public Buildings Provider Los Angeles Department of Water and Power In April 2009, Los Angeles enacted [clkrep.lacity.org/onlinedocs/2006/06-1963_ord_180633.pdf Ordinance 180636], known as the Green Building Retrofit Ordinance. This ordinance was later amended by Ordinance 182259. The law requires all city-owned

365

SCRT Technology for Retrofit of Heavy-Duty Diesel Applications...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

of the Four-Way Emission Control SCRTTM System Application Experience with a Combined SCR and DPF Technology for Heavy Duty Diesel Retrofit Effects of Catalysts on Emissions...

366

Retrofit of the Local 150 of International Union of Operating...  

Broader source: Energy.gov (indexed) [DOE]

the building-earth interaction. Demonstrate an economical and repeatable approach to district, hybrid retrofit GHP systems. gshpcheifetzretrofitlocal150.pdf More Documents &...

367

Cedarville School District Retrofit of Heating and Cooling Systems...  

Open Energy Info (EERE)

Last modified on July 22, 2011. Project Title Cedarville School District Retrofit of Heating and Cooling Systems with Geothermal Heat Pumps and Ground Source Water Loops Project...

368

BetterBuildings Financing Energy Efficiency Retrofits in the...  

Broader source: Energy.gov (indexed) [DOE]

- Financing Energy Efficient Retrofits in the Commercial Sector Webinar (text version) Primer on Clean Energy Lending: The Major Components and Options Financial Vehicles within an...

369

Retrofit Analysis of HVAC Systems Using Artificial Neural Networks.  

E-Print Network [OSTI]

??This thesis aims to explore the benefits of retrofits applied to the compressor and burner in the AC and furnace respectively and how best to (more)

Anand, Anish

2014-01-01T23:59:59.000Z

370

Residential photovoltaic worth : an assessment of retrofit vs. new construction  

E-Print Network [OSTI]

This paper characterizes the basic differences between photovoltaic retrofit and new construction applications. It quantifies the tradeoffs forced by rooftop area constraints, special array mounting costs, maintenance ...

Dinwoodie, Thomas L.

1982-01-01T23:59:59.000Z

371

NREL Job Task Analysis: Retrofit Installer Technician | Department...  

Broader source: Energy.gov (indexed) [DOE]

51671.pdf More Documents & Publications NREL Job Task Analysis: Retrofit Installer Technician (Revised) NREL Job Task Analysis: Energy Auditor trainingselfassessment.xlsx...

372

NREL Job Task Analysis: Retrofit Installer Technician (Revised...  

Broader source: Energy.gov (indexed) [DOE]

installerjta04112012.pdf More Documents & Publications NREL Job Task Analysis: Retrofit Installer Technician NREL Job Task Analysis: Energy Auditor trainingselfassessment.xlsx...

373

Building America Webinar: Introduction- Who's Successfully Doing Deep Energy Retrofits?  

Broader source: Energy.gov [DOE]

This presentation provides the introduction for the Building America webinar, Who's Successfully Doing Deep Energy Retrofits, presented on June 25, 2014.

374

Building America Webinar: Deep Energy Retrofit Case Studies: Lessons Learned  

Broader source: Energy.gov [DOE]

This presentation by Alea German is included in the Building America webinar, Who's Successfully Doing Deep Energy Retrofits?, on June 25, 2014.

375

Building America Webinar: Results from Phased Deep Retrofits in Florida  

Broader source: Energy.gov [DOE]

This presentation by Danny Parker is included in the Building America webinar, Who's Successfully Doing Deep Energy Retrofits?, on June 25, 2014.

376

Public Housing: A Tailored Approach to Energy Retrofits  

SciTech Connect (OSTI)

Over one million HUD-supported public housing units provide rental housing for eligible low-income families across the country. A survey of over 100 PHAs across the country indicated that there is a high level of interest in developing low cost solutions that improve energy efficiency and can be seamlessly included in the refurbishment process. Further, PHAs, have incentives (both internal and external) to reduce utility bills. ARIES worked with two public housing authorities (PHAs) to develop packages of energy efficiency retrofit measures the PHAs can cost effectively implement with their own staffs in the normal course of housing operations at the time when units are refurbished between occupancies. The energy efficiency turnover protocols emphasized air infiltration reduction, duct sealing and measures that improve equipment efficiency. ARIES documented implementation in ten housing units. Reductions in average air leakage were 16-20% and duct leakage reductions averaged 38%. Total source energy consumption savings was estimated at 6-10% based on BEopt modeling with a simple payback of 1.7 to 2.2 years. Implementation challenges were encountered mainly related to required operational changes and budgetary constraints. Nevertheless, simple measures can feasibly be accomplished by PHA staff at low or no cost. At typical housing unit turnover rates, these measures could impact hundreds of thousands of unit per year nationally.

Dentz, J.; Conlin, F.; Podorson, D.; Alaigh, K.

2014-06-01T23:59:59.000Z

377

RETROFIT RAMP-UP SELECTED PROJECTS* Austin, Texas ($10 Million): The Austin Climate Protection Retrofit Program will accelerate  

Broader source: Energy.gov (indexed) [DOE]

RETROFIT RAMP-UP SELECTED PROJECTS* RETROFIT RAMP-UP SELECTED PROJECTS* Austin, Texas ($10 Million): The Austin Climate Protection Retrofit Program will accelerate energy and water efficiency and integrated renewable energy improvements in private and commercial properties in the City of Austin and Austin Energy's service territory. The project will focus on alternative financing options for property owners, including new financing mechanisms, interest rate buy downs, and on-bill repayment. Boulder County, Colorado ($25 Million): Boulder County is partnering with the city of Denver, Garfield County, the Governor's Energy Office, Xcel Energy and others to launch the Colorado Retrofit Ramp-Up Program that will stimulate economic growth and investment in

378

Combustion of single biomass particles in air and in oxy-fuel conditions  

Science Journals Connector (OSTI)

Abstract The combustion behaviors of four different pulverized biomasses were evaluated in the laboratory. Single particles of sugarcane bagasse, pine sawdust, torrefied pine sawdust and olive residue were burned in a drop-tube furnace, set at 1400K, in both air and O2/CO2 atmospheres containing 21, 30, 35, and 50% oxygen mole fractions. High-speed and high-resolution images of single particles were recorded cinematographically and temperaturetime histories were obtained pyrometrically. Combustion of these particles took place in two phases. Initially, volatiles evolved and burned in spherical envelope flames of low-luminosity; then, upon extinction of these flames, char residues ignited and burned in brief periods of time. This behavior was shared by all four biomasses of this study, and only small differences among them were evident based on their origin, type and pre-treatment. Volatile flames of biomass particles were much less sooty than those of previously burned coal particles of analogous size and char combustion durations were briefer. Replacing the background N2 gas with CO2, i.e., changing from air to an oxy-fuel atmosphere, at 21% O2 impaired the intensity of combustion; reduced the combustion temperatures and lengthened the burnout times of the biomass particles. Increasing the oxygen mole fraction in CO2 to 2835% restored the combustion intensity of the single biomass particles to that in air.

Juan Riaza; Reza Khatami; Yiannis A. Levendis; Luca lvarez; Mara V. Gil; Covadonga Pevida; Fernando Rubiera; Jos J. Pis

2014-01-01T23:59:59.000Z

379

E-Print Network 3.0 - air-conditioning systemsfor occupant Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

University Collection: Biology and Medicine 3 Introduction Prior research has shown that energy savings are Summary: conditions for human occupancy. American Society of Heating,...

380

Retrofitting the domestic built environment: investigating household perspectives towards energy efficiency technologies and behaviour.  

E-Print Network [OSTI]

??Retrofitting the UK domestic built environment presents an excellent opportunity to improve its energy performance. However, retrofitting homes is a complex challenge conflated by multiple (more)

Pelenur, Marcos

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Memorandum To: GENERAL COUNSEL, DEPARTMENT OF ENERGY (DOE) From: JONATHAN MELCHI, HEATING, AIR-CONDITIONING AND REFRIGERATION  

Broader source: Energy.gov (indexed) [DOE]

To: GENERAL COUNSEL, DEPARTMENT OF ENERGY (DOE) To: GENERAL COUNSEL, DEPARTMENT OF ENERGY (DOE) From: JONATHAN MELCHI, HEATING, AIR-CONDITIONING AND REFRIGERATION DISTRIBUTORS INTERNATIONAL (HARDI) Date: 1/12/2012 Subject: EX PARTE COMMUNICATION MEMO DOE ATTENDEES: Ashley Armstrong, John Cymbalsky, David Case, Laura Barhydt HARDI ATTENDEES: Talbot Gee, Jonathan Melchi AREAS OF DISCUSSION: DOE Framework Document and Stakeholder Meeting regarding the Enforcement of the updated Energy Conservation Standards for Air Conditioners, Furnaces and Heat Pumps. The meeting took place on Thursday January 5 th , 2012 from 2pm to 3-pm. The following topics were discussed. 1.) Sell-Through. HARDI asked for clarification on the DOE's notation on the Framework Document

382

Impact evaluation of the energy retrofits installed in the Margolis high-rise apartment building, Chelsea housing authority  

SciTech Connect (OSTI)

As part of a joint demonstration effort involving HUD, DOE, a local public housing authority and Boston Edison, an evaluation of energy and demand saving retrofits was conducted for a tall, residential, low-income building located in Boston. The thirteen story building underwent window, lighting, and heating system control renovations in December, 1992. The success of these retrofits was determined using monthly and hourly whole-building consumption data along with a calibrated DOE-2.1D energy simulation model. According to the model developed, post-retrofit conditions showed reductions in annual energy consumption of 325 MWh and in peak demand of 100 kW. These savings resulted in an annual energy cost savings of $28,000. Over 90% of energy and cost savings were attributed to the window retrofit. Interaction of the reduction in lighting capacity with the building`s electric resistance heating system reduced the potential for energy and demand savings associated with the lighting retrofit. Results from the hourly simulation model also indicate that night setbacks controlled by the energy management system were not implemented. An additional 32 MWh in energy savings could be obtained by bringing this system on-line, however peak demand would be increased by 40 kW as the morning demand for space heat is increased, with a net loss in cost savings of $2,500.

Abraham, M.M.; McLain, H.A.; MacDonald, J.M.

1995-03-01T23:59:59.000Z

383

Retrofit energy studies of a recreation center  

SciTech Connect (OSTI)

Retrofit energy options for the Student Recreation Center at the University of Colorado have been evaluated using the DOE-2.1b simulation program. This building has two major systems that are not included in the program - an ice rink and a swimming pool. The approach used to model these systems and the use of the program for other applications not included in the program, such as duty cycling and night cycling of fans for freeze protection, are emphasized. Measures that help streamline the usage of the program on a minicomputer are also discussed.

Haberl, J.S.; Claridge, D.

1985-01-01T23:59:59.000Z

384

Trial Demonstration of Area Lighting Retrofit  

Broader source: Energy.gov [DOE]

LED Area Lighting Retrofit: Yuma Border Patrol Along the Yuma Sector Border Patrol Area in Yuma, Arizona, the GATEWAY program conducted a trial demonstration in which the incumbent quartz metal halide area lighting was replaced with LED at three pole locations. The LED system was found to equal or better the incumbent system in terms of both illuminance and uniformity, and an advanced optical system and lower pole height improved the illuminance uniformity, reduced stray light, and increased projected energy and maintenance cost savings. This high luminous flux and high temperature application is not unique and similar applications can benefit from the findings of this installation.

385

Cathodic protection retrofit of an offshore pipeline  

SciTech Connect (OSTI)

The cathodic protection anodes and corrosion coating on two 8-inch (203.2 mm) outside diameter (O.D.) offshore pipelines were damaged during deep water ({minus}380 feet, {minus}116 m) installation. In-situ methods for deep water inspection and repair of the pipelines` cathodic protection and coating systems were developed and performed. Methods are described in which underwater anode retrofits were performed and friction welding technology was used to re-attach anode leads. Standard procedures for underwater pipeline coating repair and remediation of damaged line pipe are provided.

Winters, R.H.; Holk, A.C. [Tenneco Energy, Houston, TX (United States)

1997-09-01T23:59:59.000Z

386

Closing Gaps in Modeling Multifamily Retrofits  

Broader source: Energy.gov (indexed) [DOE]

Building America Technical Update Meeting Denver, Colorado April 30, 2013 Jordan Dentz, The Levy Partnership., Inc. Closing Gaps in Modeling Multifamily Retrofits Advanced Residential Integrated Energy Solutions Overview * Multifamily modeling inputs (BA House Simulation Protocols) * Important multifamily measures * Other MF gaps Vital to meet 50% goals and therefore important to include in Building America's multifamily modeling capabilities Model Inputs * Heating set point * Cooling set point * Behavior assumptions 3 Heating Set Point - Central Systems * House simulation protocol assumes 71°F * Overheating is common * Approach: adjust modeled heating set point - how much? * Average heating season indoor temperature was 76°F in a sample of 18 buildings (ARIES 2013a)

387

Determination of Retrofit Savings Using a Calibrated Building Energy Simulation Model  

E-Print Network [OSTI]

in commercial buildings (Katipamula and Claridge 1991. Wu et al. 1992). Of all the modeling approaches, use of building energy simulation programs is considered most comprehensive. However, owing to the considerable uncertainty involved with various input... presents the results of a study lucted to develop a robust methodology to mine retrofit energy and cost savings in commercial buildings when few measured data are available for the preretrofit condition. Although the study focuses on commercial...

Reddy, S. N.; Hunn, B. D.; Hood, D. B.

1994-01-01T23:59:59.000Z

388

Nevada: Vegas Retrofits through Building America Enhance Home Performance  

Office of Energy Efficiency and Renewable Energy (EERE)

The EERE report Retrofitting Vegas: Implementing Energy Efficiency in Two Las Vegas Test Home notes that during the housing crisis, more than 11% of the existing housing stock in Las Vegas is in foreclosure (more than 8,100 homes). There is strong potential for achieving significant energy savings through retrofit activities in this region.

389

A Path to Successful Energy Retrofits: Early Collaboration through Integrated  

E-Print Network [OSTI]

and designers. It outlines the value of forming an integrated project delivery team and developing a complete process for designing an energy retrofit for a building. Instead, it focuses on the early design retrofits require integrated project delivery teams, this guide presents an integrated design process

390

Retrofit Ramp-Up Selected Projects* | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Retrofit Ramp-Up Selected Projects* Retrofit Ramp-Up Selected Projects* Retrofit Ramp-Up Selected Projects* Brief descriptions of retrofit ramp projects throughout the nation including: Austin, Texas; Boulder County, Colorado;Camden, New Jersey;Chicago;Cincinnati,Ohio;Greensboro, North Carolina;Indianapolis, Indiana;Kansas City, Missouri;Los Angeles County, California;Lowell, Massachusetts;State of Maine;State of Maryland;State of Michigan;State of Missouri;Omaha, Nebraska;State of New Hampshire;New York State Research and Development Authority;Philadelphia, Pennsylvania;Phoenix, Arizona;Portland, Oregon;San Antonio, Texas;Seattle, Washington;Southeast Energy Efficiency Alliance;Toledo-Lucas County Port Authority, Ohio;Wisconsin Energy Conservation Corporation Retrofit Ramp-Up Selected Projects*

391

NYSEG (Electric) - Small Business Lighting Retrofit Program | Department of  

Broader source: Energy.gov (indexed) [DOE]

NYSEG (Electric) - Small Business Lighting Retrofit Program NYSEG (Electric) - Small Business Lighting Retrofit Program NYSEG (Electric) - Small Business Lighting Retrofit Program < Back Eligibility Commercial Savings Category Appliances & Electronics Commercial Lighting Lighting Program Info Funding Source System Benefits Charge State New York Program Type Utility Rebate Program Rebate Amount Energy Assessment: Free Lighting Retrofit: 70% of cost Provider RG&E and NYSEG NYSEG offers a lighting incentive program designed to serve small business customers with a demand of 100 kilowatts (kW) or less. These small business customers may schedule a free energy assessment and then receive a 70% discount on the installed cost of recommended lighting measures. Eligible lighting measures include the retrofitting of fluorescent fixtures,

392

Tillamook County PUD - Dairy Lighting Retrofit Rebate Program | Department  

Broader source: Energy.gov (indexed) [DOE]

Tillamook County PUD - Dairy Lighting Retrofit Rebate Program Tillamook County PUD - Dairy Lighting Retrofit Rebate Program Tillamook County PUD - Dairy Lighting Retrofit Rebate Program < Back Eligibility Agricultural Savings Category Appliances & Electronics Commercial Lighting Lighting Program Info State Oregon Program Type Utility Rebate Program Provider Tillamook County PUD Tillamook PUD offers the Dairy Lighting Retrofit Program for its agricultural members to save energy on lighting in eligible barns/facilities. Tillamook PUD completes a lighting audit of the facility to calculate the energy savings and rebate amount. Incentives are provided for the replacement of existing mercury vapor, incandescent, and T12 fluorescent fixtures with new ORION AG9000 3-lamp T8 fluorescent fixtures. This rebate is available for retrofits only, new construction is not

393

DEEP RESIDENTIAL RETROFITS - USING LESS AND LIVING BETTER  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

DEEP RESIDENTIAL RETROFITS - USING LESS AND LIVING BETTER DEEP RESIDENTIAL RETROFITS - USING LESS AND LIVING BETTER Speaker(s): Iain Walker Date: December 11, 2009 - 12:00pm Location: 90-3122 (This is a repeat of the Nov. 18 ME EET Seminar on campus) There are currently thousands of federal, state and utility programs starting up throughout he nation to retrofit existing homes. Most of these programs have moderate savings goals on the order of 20%, but to really make an impact and make the nations housing stock sustainable we need savings of 70% or more. This requires fundamental changes in the way we think about retrofits. We need better diagnostics to determine how houses perform - both before and after retrofitting, we need better ways of simulating home performance so we can make better decisions about what to do to a home to

394

23.11.2014bo Akademi Univ -Thermal and Flow Engineering Piispankatu 8, 20500 Turku 1/36 7. Air conditioning, cooling towers  

E-Print Network [OSTI]

23.11.2014?bo Akademi Univ - Thermal and Flow Engineering Piispankatu 8, 20500 Turku 1/36 7. Air conditioning, cooling towers Ron Zevenhoven ?bo Akademi University Thermal and Flow Engineering Laboratory Engineering Piispankatu 8, 20500 Turku 2/36 7.1 Humid air #12;23.11.2014 ?bo Akademi Univ - Thermal and Flow

Zevenhoven, Ron

395

Energy and economic performance analysis of an open cycle solar desiccant dehumidification air-conditioning system for application in Hong Kong  

Science Journals Connector (OSTI)

In this article, a transient simulation model and the EnergyPlus were used to study the energy performance and economical feasibility for integrating a solar liquid desiccant dehumidification system with a conventional vapor compression air-conditioning system for the weather condition of Hong Kong. The vapor compression system capacity in the solar assisted air-conditioning system can be reduced to 19kW from original 28kW of a conventional air-conditioning system as a case study due to the solar desiccant cooling. The economical performance of the solar desiccant dehumidification system is compared with that of the conventional air-conditioning system. The results show that the energy saving potentials due to incorporation of the solar desiccant dehumidification system in a traditional air-conditioning system is significant for the hot wet weather in Hong Kong due to higher COP resulted from higher supply chilled water temperature from chiller plants. The annual operation energy savings for the hybrid system is 6760kWh and the payback period of the hybrid system is around 7years. The study shows that the solar assisted air-conditioning is a viable technology for utilizations in subtropical areas.

Yutong Li; Lin Lu; Hongxing Yang

2010-01-01T23:59:59.000Z

396

Heating, Ventilation, and Air Conditioning Design Strategy for a Hot-Humid Production Builder  

SciTech Connect (OSTI)

BSC worked directly with the David Weekley Homes - Houston division to redesign three floor plans in order to locate the HVAC system in conditioned space. The purpose of this project is to develop a cost effective design for moving the HVAC system into conditioned space. In addition, BSC conducted energy analysis to calculate the most economical strategy for increasing the energy performance of future production houses. This is in preparation for the upcoming code changes in 2015. The builder wishes to develop an upgrade package that will allow for a seamless transition to the new code mandate. The following research questions were addressed by this research project: 1. What is the most cost effective, best performing and most easily replicable method of locating ducts inside conditioned space for a hot-humid production home builder that constructs one and two story single family detached residences? 2. What is a cost effective and practical method of achieving 50% source energy savings vs. the 2006 International Energy Conservation Code for a hot-humid production builder? 3. How accurate are the pre-construction whole house cost estimates compared to confirmed post construction actual cost? BSC and the builder developed a duct design strategy that employs a system of dropped ceilings and attic coffers for moving the ductwork from the vented attic to conditioned space. The furnace has been moved to either a mechanical closet in the conditioned living space or a coffered space in the attic.

Kerrigan, P.

2014-03-01T23:59:59.000Z

397

US Department of Energys Regulatory Negotiations Convening on Commercial Certification for Heating, Ventilating, Air-Conditioning, and Refrigeration Equipment  

Broader source: Energy.gov [DOE]

This document provides Public Information for Convening Interviews for US Department of Energys Regulatory Negotiations Convening on Commercial Certification for Heating, Ventilating, Air-Conditioning, and Refrigeration Equipment

398

The Technical and Economical Analysis of a Centralized Air-Conditioning System with Cold Storage Refrigeration in High-Rise Residential Buildings  

E-Print Network [OSTI]

In recent years, the application of a centralized air-conditioning system (CACS) with cold storage refrigeration in high-rise residential buildings has gradually increased. Due to the large difference between civil residential buildings...

Xiang, C.; Xie, G.

2006-01-01T23:59:59.000Z

399

Using Hydrated Salt Phase Change Materials for Residential Air Conditioning Peak Demand Reduction and Energy Conservation in Coastal and Transitional Climates in the State of California  

E-Print Network [OSTI]

The recent rapid economic and population growth in the State of California have led to a significant increase in air conditioning use, especially in areas of the State with coastal and transitional climates. This fact makes ...

Lee, Kyoung Ok

2013-05-31T23:59:59.000Z

400

Building America Efficient Solutions for Existing Homes Case Study: Deep Energy Retrofit of 1910 House, Portland, Oregon  

Broader source: Energy.gov (indexed) [DOE]

one-and-a-half-story, two-bedroom home with a half-basement one-and-a-half-story, two-bedroom home with a half-basement is typical of 100-year-old homes in Portland, Oregon. The home had no insulation, an unfinished basement, old appliances and air leaks everywhere when purchased by its current owner in 2010. The owners performed a full deep energy retrofit, including air sealing and insulating exterior walls and attic and installing new, efficient appliances. Building America researchers from the Pacific Northwest National Laboratory audited the home after the retrofits had occurred and used Energy Gauge USA simulation software to predict energy savings. They also partnered with local home performance contractor Imagine Energy to meter the circuit-level electricity use and the natural gas use of the tankless hot water heater and 95% condensing gas furnace. Based on

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

DEST Software to Analyze System Zoning and Energy Consumption in Air Conditioning Systems  

E-Print Network [OSTI]

This paper reports on a study on how to appropriately divide system zoning by using DeST software to calculate the basis dynamic temperature and load of all rooms in an office building. Influent factors of weather conditions, building envelope...

Fan, Y.; Li, D.

2006-01-01T23:59:59.000Z

402

Impact of Charge Degradation on the Life Cycle Climate Performance of a Residential Air-Conditioning System  

SciTech Connect (OSTI)

Vapor compression systems continuously leak a small fraction of their refrigerant charge to the environment, whether during operation or servicing. As a result of the slow leak rate occurring during operation, the refrigerant charge decreases until the system is serviced and recharged. This charge degradation, after a certain limit, begins to have a detrimental effect on system capacity, energy consumption, and coefficient of performance (COP). This paper presents a literature review and a summary of previous experimental work on the effect of undercharging or charge degradation of different vapor compression systems, especially those without a receiver. These systems include residential air conditioning and heat pump systems utilizing different components and refrigerants, and water chiller systems. Most of these studies show similar trends for the effect of charge degradation on system performance. However, it is found that although much experimental work exists on the effect of charge degradation on system performance, no correlation or comparison between charge degradation and system performance yet exists. Thus, based on the literature review, three different correlations that characterize the effect of charge on system capacity and energy consumption are developed for different systems as follows: one for air-conditioning systems, one for vapor compression water-to-water chiller systems, and one for heat pumps. These correlations can be implemented in vapor compression cycle simulation tools to obtain a better prediction of the system performance throughout its lifetime. In this paper, these correlations are implemented in an open source tool for life cycle climate performance (LCCP) based design of vapor compression systems. The LCCP of a residential air-source heat pump is evaluated using the tool and the effect of charge degradation on the results is studied. The heat pump is simulated using a validated component-based vapor compression system model and the LCCP results obtained using the three charge degradation correlations are compared.

Beshr, Mohamed [University of Maryland, College Park; Aute, Vikrant [University of Maryland, College Park; Abdelaziz, Omar [ORNL; Fricke, Brian A [ORNL; Radermacher, Reinhard [University of Maryland, College Park

2014-01-01T23:59:59.000Z

403

Japanese and American competition in the development of scroll compressors and its impact on the American air conditioning industry  

SciTech Connect (OSTI)

This report examines the technological development of scroll compressors and its impact on the air conditioning equipment industry. Scroll compressors, although considered to be the compressors of the future for energy-efficient residential heat pumps and possibly for many other applications, are difficult to manufacture on a volume-production base. The manufacturing process requires computer-aided, numerically controlled tools for high-precision fabrication of major parts. Japan implemented a global strategy for dominating the technological world market in the 1970s, and scroll compressor technology benefited from the advent of new-generation machine tools. As a result, if American manufacturers of scroll compressors purchase or are essentially forced to purchase numerically controlled tools from Japan in the future, they will then become dependent on their own competitors because the same Japanese conglomerates that make numerically controlled tools also make scroll compressors. This study illustrates the importance of the basic machine tool industry to the health of the US economy. Without a strong machine tool industry, it is difficult for American manufacturers to put innovations, whether patented or not, into production. As we experience transformation in the air conditioning and refrigeration market, it will be critical to establish a consistent national policy to provide healthy competition among producers, to promote innovation within the industry, to enhance assimilation of new technology, and to eliminate practices that are incompatible with these goals. 72 refs., 8 figs., 1 tab.

Ushimaru, Kenji (Energy International, Inc., Bellevue, WA (USA))

1990-02-01T23:59:59.000Z

404

Development of cold seawater air conditioning systems for application as a demand side management tool for Hawaii and other subtropical climates  

SciTech Connect (OSTI)

Because of the proximity to deep cold seawater for many coastal regions in Hawaii and the high demand for air conditioning in large buildings, seawater air conditioning (SWAC) is a major potential sustainable energy resource for Hawaii and other subtropical regions of the world. The basic concept of seawater air conditioning is the use deep cold seawater to cool the chilled water in one or more air conditioned buildings as opposed to using energy intensive refrigeration systems. The economic viability of the seawater air conditioning is determined by comparing the construction and operating costs of the seawater supply system to the construction and operating costs of conventional air conditioning systems. The State of Hawaii commissioned an analysis to identify the technical and economic opportunities and limitations in the use of SWAC in Hawaii. The result of this work is a feasibility analysis of SWAC systems in the state and the potential associated energy savings. The study looked at the prospects of installing such a system at a major new resort development on Oahu called West Beach.

Kaya, M.H. [State of Hawaii, Honolulu, HI (United States). Dept. of Business, Economic Development, and Tourism

1996-10-01T23:59:59.000Z

405

District heating and cooling systems for communities through power plant retrofit distribution network. Phase 2. Final report, March 1, 1980-January 31, 1984. Volume IV  

SciTech Connect (OSTI)

This volume contains the following: discussion of cost estimating methodology, detailed cost estimates of Hudson No. 2 retrofit, intermediate thermal plant (Kearny No. 12) and local heater plants; transmission and distribution cost estimate; landfill gas cost estimate; staged development scenarios; economic evaluation; fuel use impact; air quality impact; and alternatives to district heating.

Not Available

1984-01-31T23:59:59.000Z

406

A Meta-Analysis of Single-Family Deep Energy Retrofit Performance in the U.S.  

SciTech Connect (OSTI)

The current state of Deep Energy Retrofit (DER) performance in the U.S. has been assessed in 116 homes in the United States (US), using actual and simulated data gathered from the available domestic literature. Substantial airtightness reductions averaging 63% (n=48) were reported (two- to three-times more than in conventional retrofits), with average post-retrofit airtightness of 4.7 Air Changes per House at 50 Pascal (ACH50) (n=94). Yet, mechanical ventilation was not installed consistently. In order to avoid indoor air quality (IAQ) issues, all future DERs should comply with ASHRAE 62.2-2013 requirements or equivalent. Projects generally achieved good energy results, with average annual net-site and net-source energy savings of 47%20% and 45%24% (n=57 and n=35), respectively, and carbon emission reductions of 47%22% (n=23). Net-energy reductions did not vary reliably with house age, airtightness, or reported project costs, but pre-retrofit energy usage was correlated with total reductions (MMBtu). Annual energy costs were reduced $1,283$804 (n=31), from a pre-retrofit average of $2,738$1,065 to $1,588$561 post-retrofit (n=25 and n=39). The average reported incremental project cost was $40,420$30,358 (n=59). When financed on a 30-year term, the median change in net-homeownership cost was only $1.00 per month, ranging from $149 in savings to an increase of $212 (mean=$15.67$87.74; n=28), and almost half of the projects resulted in reductions in net-cost. The economic value of a DER may be much greater than is suggested by these net-costs, because DERs entail substantial non-energy benefits (NEBs), and retrofit measures may add value to a home at resale similarly to general remodeling, PV panel installation, and green/energy efficient home labels. These results provide estimates of the potential of DERs to address energy use in existing homes across climate zones that can be used in future estimates of the technical potential to reduce household energy use and greenhouse gas emissions through DERs.

Less, Brennan; Walker, Iain

2014-03-01T23:59:59.000Z

407

Designing Effective Incentives to Drive Residential Retrofit Program Participation (Text Version)  

Broader source: Energy.gov [DOE]

Transcript of the webinar, "Designing Effective Incentives to Drive Residential Retrofit Program Participation."

408

Estimated 2017 Refrigerant Emissions of 2,3,3,3-tetrafluoropropene (HFC-1234yf) in the United States Resulting from Automobile Air Conditioning  

Science Journals Connector (OSTI)

The use of MAC systems also consumes significant quantities of fuel as compared to similar driving conditions without operating the air conditioning. ... However, turning off the air conditioner and rolling-down the windows also decreases fuel economy due to increased air drag but this scenario is not considered in these studies (1, 2). ... In 2006, the European Commission issued Directive 2006/40/EC (commonly known as the F-Gas Directive) (3), which requires new types of air-conditioned cars sold in the EU to have a refrigerant with a GWP of 150 or less starting in 2011, and all new vehicles to have a refrigerant with a GWP of 150 or less by 2017. ...

Stella Papasavva; Deborah J. Luecken; Robert L. Waterland; Kristen N. Taddonio; Stephen O. Andersen

2009-11-12T23:59:59.000Z

409

Experimental and kinetic study of autoignition in methane/ethane/air and methane/propane/air mixtures under engine-relevant conditions  

SciTech Connect (OSTI)

The ignition delay of homogeneous methane/air mixtures enriched with small fractions of ethane/propane was measured using the reflected-shock technique at temperatures from 900 to 1400 K and pressures from 16 to 40 bar. The results show complex effects of ethane/propane on the ignition of methane, but a common trend observed with both hydrocarbons is an increased promotion effect for temperatures below 1100 K. A detailed kinetic mechanism was used to investigate the interaction between ethane/propane and the ignition chemistry of methane under the above conditions. It was found that at relatively low temperatures, the reactions between ethane/propane and methylperoxy (CH{sub 3}O{sub 2}) lead to an enhanced rate of formation of OH radicals in the initiation phase of the ignition. By systematically applying the quasi-steady-state assumptions to the intermediate species involved in the main reaction path identified, we have achieved an analytical description of the ignition process in the transitional temperature regime. The analytical solutions agree reasonably well with the detailed kinetic model and the experimental results for both ignition delay and concentrations of major intermediate species.

Huang, J.; Bushe, W.K. [Department of Mechanical Engineering, University of British Columbia, 6950 Applied Science Lane, Vancouver, British Columbia (Canada V6T 1Z4)

2006-01-01T23:59:59.000Z

410

Public Sector New Construction and Retrofit Program | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Public Sector New Construction and Retrofit Program Public Sector New Construction and Retrofit Program Public Sector New Construction and Retrofit Program < Back Eligibility Fed. Government Institutional Local Government Schools State Government Savings Category Heating & Cooling Commercial Heating & Cooling Heating Home Weatherization Commercial Weatherization Sealing Your Home Cooling Construction Design & Remodeling Appliances & Electronics Ventilation Heat Pumps Commercial Lighting Lighting Manufacturing Insulation Water Heating Windows, Doors, & Skylights Maximum Rebate Bonus maximum: $100,000 All incentives: $2.50/sq. ft. (base plus bonus), $300,000, 75% of project costs, and 100% of incremental costs Program Info Funding Source Illinois Energy Efficiency Portfolio Standard (EEPS) surcharge for Ameren,

411

NIPSCO - Existing Facility Retrofit Rebate Program | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

NIPSCO - Existing Facility Retrofit Rebate Program NIPSCO - Existing Facility Retrofit Rebate Program NIPSCO - Existing Facility Retrofit Rebate Program < Back Eligibility Commercial Fed. Government Industrial Institutional Local Government Nonprofit Schools State Government Tribal Government Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Home Weatherization Construction Commercial Weatherization Design & Remodeling Manufacturing Heat Pumps Appliances & Electronics Commercial Lighting Lighting Maximum Rebate Contact NIPSCO $500,000 per project per year $1,000,000 per applicant per year Program Info Expiration Date 12/31/2013 State Indiana Program Type Utility Rebate Program Rebate Amount Other Projects: $0.09/kWh in electricity reductions Energize Indiana Rebates: Varies widely Provider

412

Retrofitting the Southeast: The Cool Energy House  

SciTech Connect (OSTI)

The Consortium for Advanced Residential Buildings has provided the technical engineering and building science support for a highly visible demonstration home in connection with the National Association of Home Builders' International Builders Show. The two previous projects, the Las Vegas net-zero ReVISION House and the 2011 VISION and ReVISION Houses in Orlando, met goals for energy efficiency, cost effectiveness, and information dissemination through multiple web-based venues. This project, which was unveiled at the 2012 International Builders Show in Orlando on February 9, is the deep energy retrofit Cool Energy House (CEH). The CEH began as a mid-1990s two-story traditional specification house of about 4,000 ft2 in the upscale Orlando suburb of Windermere.

Zoeller, W.; Shapiro, C.; Vijayakumar, G.; Puttagunta, S.

2013-02-01T23:59:59.000Z

413

Drag coefficient for the air-sea exchange: foam impact in hurricane conditions  

E-Print Network [OSTI]

A physical model is proposed for the estimation of the foam impact on the variation of the effective drag coefficient, C_d, with reference to the wind speed U10 in stormy and hurricane conditions. In the present model C_d is approximated by partitioning the sea surface into foam-covered and foam-free areas. Based on the available optical and radiometric measurements of the fractional foam coverage and the characteristic roughness of the sea-surface in the saturation limit of the foam coverage, the model yields the resulting dependence of C_d vs U10. This dependence is in fair agreement with that evaluated from field measurements of the vertical variation of the mean wind speed.

Golbraikh, Ephim

2014-01-01T23:59:59.000Z

414

Solutions for Summer Electric Power Shortages: Demand Response and its Applications in Air Conditioning and Refrigerating Systems  

E-Print Network [OSTI]

for DR and demand side management, along with operationalresponse), DSM (demand side management), DR strategy, air

Han, Junqiao; Piette, Mary Ann

2008-01-01T23:59:59.000Z

415

Deep Energy Retrofits - Eleven California Case Studies  

E-Print Network [OSTI]

Air Plus Guidelines should be used to achieve further improvements in moisture, durability and pollutant source control.

Less, Brennan

2014-01-01T23:59:59.000Z

416

Comment submitted by the Air Conditioning, Heating and Refrigeration Institute (AHRI) regarding the Energy Star Verification Testing Program  

Broader source: Energy.gov (indexed) [DOE]

AHRI Comments - DOE Verification Testing in Support of Energy Star AHRI Comments - DOE Verification Testing in Support of Energy Star May 9, 2011 P a g e | 1 May 9, 2010 Ms. Ashley Armstrong U.S. Department of Energy 1000 Independence Avenue, SW Washington, DC 20585 RE: DOE Verification Testing in Support of Energy Star Dear Ms. Armstrong: I am writing on behalf of the Air Conditioning, Heating and Refrigeration Institute (AHRI) to address the proposed DOE requirements for verification testing in support of the Energy Star program. AHRI is the trade association representing manufacturers of heating, cooling, and commercial refrigeration equipment. More than 300 members strong, AHRI is an internationally recognized advocate for the industry, and develops standards for and certifies the performance of many of the

417

Uncertainty of sound power levels determined following Air Conditioning Heating and Refrigeration Institute Standard 220  

Science Journals Connector (OSTI)

As part of the AHRI ASA-ANSI and ISO standards development processes the uncertainty of sound power measurements needs to be quantified for inclusion in sound power standards. A study of four reverberation rooms with volumes of 140 280 560 and 1790 cubic meters was undertaken. Sound power levels for five noise sources (two vertical shafted sound sources two horizontal shafted sound sources and a leaf blower) were determined using ARI Standard 220. Variables investigated include: source location source orientation room conditions source operating characteristics and microphone traverse length. The frequency range of interest was 25 Hz to 10 kHz. Measurements were repeated and the order of tests was randomized. Of particular interest was the difference between the 140 cubic foot room and the other rooms to confirm the room qualification process required by ARI Standard 220 because the 140 cubic foot room does not meet the ARI Standard 220 qualification process but does meet the requirements in ISO 3741. This work will be helpful in understanding the sources of variation and allow for a starting point for determining if improvements are needed and if so what factors should be considered.

2010-01-01T23:59:59.000Z

418

Copper contamination effects on hydrogen-air combustion under SCRAMJET (supersonic combustion ramjet) testing conditions  

SciTech Connect (OSTI)

Two forms of copper catalytic reactions (homogeneous and heterogeneous) in hydrogen flames were found in a literature survey. Hydrogen atoms in flames recombine into hydrogen molecules through catalytic reactions, and these reactions which affect the timing of the combustion process. Simulations of hydrogen flames with copper contamination were conducted by using a modified general chemical kinetics program (GCKP). Results show that reaction times of hydrogen flames are shortened by copper catalytic reactions, but ignition times are relatively insensitive to the reactions. The reduction of reaction time depends on the copper concentration, copper phase, particle size (if copper is in the condensed phase), and initial temperature and pressure. The higher the copper concentration of the smaller the particle, the larger the reduction in reaction time. For a supersonic hydrogen flame (Mach number = 4.4) contaminated with 200 ppm of gaseous copper species, the calculated reaction times are reduced by about 9%. Similar reductions in reaction time are also computed for heterogeneous copper contamination. Under scramjet testing conditions, the change of combustion timing appears to be tolerable (less than 5%) if the Mach number is lower than 3 or the copper contamination is less than 100 ppm. The higher rate the Mach number, the longer the reaction time and the larger the copper catalytic effects. 7 tabs., 8 figs., 34 refs.

Chang, S.L.; Lottes, S.A.; Berry, G.F.

1990-01-01T23:59:59.000Z

419

Lighting Retrofit Improving Visibility, Saving Energy | Department of  

Broader source: Energy.gov (indexed) [DOE]

Lighting Retrofit Improving Visibility, Saving Energy Lighting Retrofit Improving Visibility, Saving Energy Lighting Retrofit Improving Visibility, Saving Energy August 27, 2010 - 10:05am Addthis New LED lighting fixtures (right) emit a whiter light than existing high-pressure sodium cobra head streetlights (left) and don't spill light onto nearby houses. | Photos courtesy of the City of Muscatine New LED lighting fixtures (right) emit a whiter light than existing high-pressure sodium cobra head streetlights (left) and don't spill light onto nearby houses. | Photos courtesy of the City of Muscatine Kevin Craft In the small Midwestern town of Muscatine, Iowa-known as the "The Pearl Button Capital of the World" for the millions of pearl buttons produced there in the early 1900s-a lighting retrofit project will bring a new

420

Charlotte Green Supply Chain: Residential Retrofitting | Department of  

Broader source: Energy.gov (indexed) [DOE]

Charlotte Green Supply Chain: Residential Retrofitting Charlotte Green Supply Chain: Residential Retrofitting Charlotte Green Supply Chain: Residential Retrofitting July 30, 2010 - 10:50am Addthis Joshua DeLung What does this mean for me? Weatherizing your home could immediately save you 30% on your home energy bills. Charlotte, N.C. resident Ron Martin heard he could save some money by having his home retrofitted, making small - but important - changes to increase energy efficiency. The ideal was intriguing. Martin called local retrofitter Energy Tight in May to come perform an energy audit on his home. The company performed a blower door test and checked his duct work, attic and crawlspace for areas where energy might be leaking out. "They used an infrared camera to show me places in the walls where there

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Lighting Retrofits Saving Energy, Helping Local Companies | Department of  

Broader source: Energy.gov (indexed) [DOE]

Lighting Retrofits Saving Energy, Helping Local Companies Lighting Retrofits Saving Energy, Helping Local Companies Lighting Retrofits Saving Energy, Helping Local Companies August 9, 2010 - 1:00pm Addthis LEDs such as this are expected to save Altoona, Pa. thousands in energy costs. | File photo LEDs such as this are expected to save Altoona, Pa. thousands in energy costs. | File photo It's easy to measure the effects of a lighting retrofit project in a city like Altoona, Pa., where 169 new LED units are expected to save $4,078 in energy costs annually. But there are also other benefits to such energy efficiency initiatives, which can be seen in the local companies that make the projects possible. "The American Recovery and Reinvestment Act has helped our customers make the decision to move forward with energy related projects," says Paul

422

Golden Valley Electric Association - Commercial Lighting Retrofit Rebate  

Broader source: Energy.gov (indexed) [DOE]

Commercial Lighting Retrofit Commercial Lighting Retrofit Rebate Program Golden Valley Electric Association - Commercial Lighting Retrofit Rebate Program < Back Eligibility Commercial Savings Category Appliances & Electronics Commercial Lighting Lighting Maximum Rebate $20,000 per project Program Info State Alaska Program Type Utility Rebate Program Rebate Amount Up to $1,000/kW or 50% of the project cost Provider Golden Valley Electric Association BusBusiness $ense is a Golden Valley Electric Association (GVEA) program designed to increase the efficiency with which energy is used on GVEA's system. It provides rebates of up to $20,000 to existing facilities receiving the commercial rate who reduce their lighting loads through energy efficient lighting retrofit projects. Facilities on GVEA's

423

Emission Control Systems and Components for Retrofit and First...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

of Advanced Emission Controls for the Retrofit Market Development of a Stand-Alone Urea-SCR System for NOx Reduction in Marine Diesel Engines HD Truck and Engine Fuel Efficiency...

424

Street and Parking Facility Lighting Retrofit Financial Analysis Tool Webinar  

Broader source: Energy.gov [DOE]

DOE will present a live webinar titled "Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool" on Thursday, August 22, from 1:00 p.m. to 2:00 p.m. Eastern Daylight Time....

425

EECBG Success Story: Lighting Retrofits Saving Energy, Helping...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

of a lighting retrofit project in a city like Altoona, Pennsylvania, where 169 new LED units are expected to save 4,078 in energy costs annually. Learn more. Addthis Related...

426

DOE Webinar - Residential Geothermal Heat Pump Retrofits (Presentation)  

SciTech Connect (OSTI)

This presentation was given December 14, 2010, as part of DOE's Webinar series. The presentation discusses geothermal heat pump retrofits, technology options, and an overview of geothermal energy and geothermal heat pumps.

Anderson, E. R.

2010-12-14T23:59:59.000Z

427

Retrofit Financial Analysis Tool, Version 1.1.01  

Broader source: Energy.gov [DOE]

Download a zip file containing the Retrofit Financial Analysis Tool, Version 1.1.01, and an example version of the Tool filled in with sample data. Save the file to your computer before opening..

428

How Fuel Price Elasticity Affects the Economics of Thermal Retrofits  

Science Journals Connector (OSTI)

Policymakers, their expert advisors and the academic community use mathematical models to evaluate the economic viability and payback time of thermal retrofits. Most of these models have the form of a cost-benefi...

Ray Galvin

2013-01-01T23:59:59.000Z

429

Retrofitting the Streetlights in Boise, Idaho | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Retrofitting the Streetlights in Boise, Idaho Retrofitting the Streetlights in Boise, Idaho Retrofitting the Streetlights in Boise, Idaho Addthis Description Boise, Idaho is using an energy efficiency grant to retrofit hundreds of streetlights throughout the downtown area with energy-efficient LED bulbs, which will save money and improve safety and local quality of life. Speakers Clay Young, LeAnn Oliver, David Bieter, Neal Oldemeyer Duration 3:05 Topic Tax Credits, Rebates, Savings Clean Cities Commercial Lighting Credit Energy Department Video Boise is an old pioneer town. It's fairly isolated and it has, you know, kind of a pioneering spirit still about it. People are very independent, very outdoorsy. It's a smallish metropolitan area but it's kind of a hip metropolitan area. It's a very, very neat place to

430

Lighting Retrofits Saving Energy, Helping Local Companies | Department of  

Broader source: Energy.gov (indexed) [DOE]

Lighting Retrofits Saving Energy, Helping Local Companies Lighting Retrofits Saving Energy, Helping Local Companies Lighting Retrofits Saving Energy, Helping Local Companies August 9, 2010 - 1:00pm Addthis LEDs such as this are expected to save Altoona, Pa. thousands in energy costs. | File photo LEDs such as this are expected to save Altoona, Pa. thousands in energy costs. | File photo It's easy to measure the effects of a lighting retrofit project in a city like Altoona, Pa., where 169 new LED units are expected to save $4,078 in energy costs annually. But there are also other benefits to such energy efficiency initiatives, which can be seen in the local companies that make the projects possible. "The American Recovery and Reinvestment Act has helped our customers make the decision to move forward with energy related projects," says Paul

431

NRELs Energy-Saving Technology for Air Conditioning Cuts Peak Power Loads Without Using Harmful Refrigerants (Fact Sheet), NREL (National Renewable Energy Laboratory)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

DEVAP Slashes Peak Power Loads DEVAP Slashes Peak Power Loads Desiccant-enhanced evaporative (DEVAP) air-condi- tioning will provide superior comfort for commercial buildings in any climate at a small fraction of the elec- tricity costs of conventional air-conditioning equip- ment, releasing far less carbon dioxide and cutting costly peak electrical demand by an estimated 80%. Air conditioning currently consumes about 15% of the electricity generated in the United States and is a major contributor to peak electrical demand on hot summer days, which can lead to escalating power costs, brownouts, and rolling blackouts. DEVAP employs an innovative combination of air-cooling technologies to reduce energy use by up to 81%. DEVAP also shifts most of the energy needs to thermal energy sources, reducing annual electricity use by up

432

Analysis and experimental study on formation conditions of large-scale barrier-free diffuse atmospheric pressure air plasmas in repetitive pulse mode  

SciTech Connect (OSTI)

Atmospheric air diffuse plasmas have enormous application potential in various fields of science and technology. Without dielectric barrier, generating large-scale air diffuse plasmas is always a challenging issue. This paper discusses and analyses the formation mechanism of cold homogenous plasma. It is proposed that generating stable diffuse atmospheric plasmas in open air should meet the three conditions: high transient power with low average power, excitation in low average E-field with locally high E-field region, and multiple overlapping electron avalanches. Accordingly, an experimental configuration of generating large-scale barrier-free diffuse air plasmas is designed. Based on runaway electron theory, a low duty-ratio, high voltage repetitive nanosecond pulse generator is chosen as a discharge excitation source. Using the wire-electrodes with small curvature radius, the gaps with highly non-uniform E-field are structured. Experimental results show that the volume-scaleable, barrier-free, homogeneous air non-thermal plasmas have been obtained between the gap spacing with the copper-wire electrodes. The area of air cold plasmas has been up to hundreds of square centimeters. The proposed formation conditions of large-scale barrier-free diffuse air plasmas are proved to be reasonable and feasible.

Li, Lee, E-mail: leeli@mail.hust.edu.cn; Liu, Lun; Liu, Yun-Long; Bin, Yu; Ge, Ya-Feng; Lin, Fo-Chang [State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electric and Electronic Engineering, HuaZhong University of Science and Technology (HUST), Wuhan 430074 (China)

2014-01-14T23:59:59.000Z

433

Energy Performance Evaluation and Development of Control Strategies for the Air-conditioning System of a Building at Construction Stage  

E-Print Network [OSTI]

. These control strategies mainly involve optimal chiller sequencing control, cooling tower sequencing control, optimal water pressure differential set-point control, AHU supply air static pressure reset control and DCV-based fresh air control, etc. To assess...

Wang, S.; Xu, X.; Ma, Z.

2006-01-01T23:59:59.000Z

434

Measuring retrofit savings in commercial buildings with pre-retrofit utility billing data and post-retrofit sub-metered data  

E-Print Network [OSTI]

Savings in Commercial Buildings with Pre-Retrofit Utility Billing Data and Post-Retrofit Sub-Metered Data. (December 1993) Yue Liu, B.S., Harbin Architecture & Civil Engineering Institute, Harbin, China Chair of Advisory Committee: Dr. David E... for provision of site information. Finally, I give thanks to all my colleagues and friends at the Energy Systems Lab for their support and friendship. vii TABLE OF CONTENTS Page - A B S T R A C T iii DEDICATION v A C K N O W L E D G M E N T S vi LIST...

Liu, Yue

2012-06-07T23:59:59.000Z

435

Oxy-fuel Combustion and Integrated Pollutant Removal as Retrofit Technologies for Removing CO2 from Coal Fired Power Plants  

SciTech Connect (OSTI)

One third of the US installed capacity is coal-fired, producing 49.7% of net electric generation in 20051. Any approach to curbing CO2 production must consider the installed capacity and provide a mechanism for preserving this resource while meeting CO2 reduction goals. One promising approach to both new generation and retrofit is oxy-fuel combustion. Using oxygen instead of air as the oxidizer in a boiler provides a concentrated CO2 combustion product for processing into a sequestration-ready fluid.... Post-combustion carbon capture and oxy-fuel combustion paired with a compression capture technology such as IPR are both candidates for retrofitting pc combustion plants to meet carbon emission limits. This paper will focus on oxy-fuel combustion as applied to existing coal power plants.

Ochs, T.L.; Oryshchyn, D.B.; Summers, C.A.; Gerdemann, S.J.

2001-01-01T23:59:59.000Z

436

Laboratory Performance Testing of Residential Window Air Conditioners  

SciTech Connect (OSTI)

Window air conditioners are the dominant cooling product for residences, in terms of annual unit sales. They are inexpensive, portable and can be installed by the owner. For this reason, they are an attractive solution for supplemental cooling, for retrofitting air conditioning into a home which lacks ductwork, and for renters. Window air conditioners for sale in the United States are required to meet very modest minimum efficiency standards. Four window air conditioners' performance were tested in the Advanced HVAC Systems Laboratory on NREL's campus in Golden, CO. In order to separate and study the refrigerant system's performance, the unit's internal leakage pathways, the unit's fanforced ventilation, and the leakage around the unit resulting from installation in a window, a series of tests were devised that focused on each aspect of the unit's performance. These tests were designed to develop a detailed performance map to determine whole-house performance in different climates. Even though the test regimen deviated thoroughly from the industry-standard ratings test, the results permit simple calculation of an estimated rating for both capacity and efficiency that would result from a standard ratings test. Using this calculation method, it was found that the three new air conditioners' measured performance was consistent with their ratings. This method also permits calculation of equivalent SEER for the test articles. Performance datasets were developed across a broad range of indoor and outdoor operating conditions, and used them to generate performance maps.

Winkler, J.; Booten, C.; Christensen, D.; Tomerlin, J.

2013-03-01T23:59:59.000Z

437

Deep Energy Retrofits - Eleven California Case Studies  

E-Print Network [OSTI]

RH ROI SAP SCHA SEER SHGC SPF THC WAP XPS ZNE ResidentialArgon, wood frame U-0.3, SHGC-0.35, VT- 0.54 ENVELOPE AirE, with U-Value of 0.35, SHGC of 0.32, and VT of 0.54. P1

Less, Brennan

2014-01-01T23:59:59.000Z

438

Deemed Savings Estimates for Legacy Air Conditioning and WaterHeating Direct Load Control Programs in PJM Region  

SciTech Connect (OSTI)

During 2005 and 2006, the PJM Interconnection (PJM) Load Analysis Subcommittee (LAS) examined ways to reduce the costs and improve the effectiveness of its existing measurement and verification (M&V) protocols for Direct Load Control (DLC) programs. The current M&V protocol requires that a PURPA-compliant Load Research study be conducted every five years for each Load-Serving Entity (LSE). The current M&V protocol is expensive to implement and administer particularly for mature load control programs, some of which are marginally cost-effective. There was growing evidence that some LSEs were mothballing or dropping their DLC programs in lieu of incurring the expense associated with the M&V. This project had several objectives: (1) examine the potential for developing deemed savings estimates acceptable to PJM for legacy air conditioning and water heating DLC programs, and (2) explore the development of a collaborative, regional, consensus-based approach for conducting monitoring and verification of load reductions for emerging load management technologies for customers that do not have interval metering capability.

Goldman, Charles

2007-03-01T23:59:59.000Z

439

Distribution of small dispersive coal dust particles and absorbed radioactive chemical elements in conditions of forced acoustic resonance in iodine air filter at nuclear power plant  

E-Print Network [OSTI]

The physical features of distribution of the small dispersive coal dust particles and the adsorbed radioactive chemical elements and their isotopes in the absorber with the granular filtering medium with the cylindrical coal granules were researched in the case of the intensive air dust aerosol stream flow through the iodine air filter (IAF). It was shown that, at the certain aerodynamic conditions in the IAF, the generation of the acoustic oscillations is possible. It was found that the acoustic oscillations generation results in an appearance of the standing acoustic waves of the air pressure (density) in the IAF. In the case of the intensive blow of the air dust aerosol, it was demonstrated that the standing acoustic waves have some strong influences on both: 1) the dynamics of small dispersive coal dust particles movement and their accumulation in the IAF; 2) the oversaturation of the cylindrical coal granules by the adsorbed radioactive chemical elements and their isotopes in the regions, where the antin...

Ledenyov, Oleg P

2013-01-01T23:59:59.000Z

440

Air Conditioning Cold/Heat Source Analysis of the Inclusion of the Monetary Values of Environmental Damage Based on the LCA Theory  

E-Print Network [OSTI]

of Life Cycle Assessment (LCA) and Willingness - to - pay (WTP). The analysis makes it possible to compare the technical and eco-nomic differences of the air conditioning system based on business economics to a system with greater empha-sis on socio...

Li, Z.; Duanmu, L.; Shu, H.; Zhu, Y.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

2014-02-07 Issuance: Certification of Commercial Heating, Ventilation, and Air-conditioning, Water Heating, and Refrigeration Equipment; Notice of Proposed Rulemaking  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register notice of proposed rulemaking regarding certification of commercial heating, ventilation, and air-conditioning, water-heating, and refrigeration equipment, as issued by the Deputy Assistant Secretary for Energy Efficiency on February 7, 2014.

442

ADEC II Universal SCR Retrofit System for On-road and Off-road...  

Broader source: Energy.gov (indexed) [DOE]

ADEC II Universal SCR Retrofit System for On-road and Off-road Diesel Engines ADEC II Universal SCR Retrofit System for On-road and Off-road Diesel Engines Presentation given at...

443

Research on Commercial Patterns of China Existing Building Energy Retrofit Based on Energy Management Contract  

E-Print Network [OSTI]

Existing building energy retrofit is one of the keys of building energy efficiency in China. According to experience in developed countries, implementation of energy management contract (EMC) is crucial to promote existing building energy retrofit...

Han, Z.; Liu, C.; Sun, J.

2006-01-01T23:59:59.000Z

444

Effects of Catalysts on Emissions from Heavy-Duty Diesel Retrofits...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Catalysts on Emissions from Heavy-Duty Diesel Retrofits for PM and NOX Control Effects of Catalysts on Emissions from Heavy-Duty Diesel Retrofits for PM and NOX Control The more...

445

Development of whole-building energy performance models as benchmarks for retrofit projects  

Science Journals Connector (OSTI)

This paper presents a systematic development process of whole-building energy models as performance benchmarks for retrofit projects. Statistical regression-based models and computational performance models are being used for retrofit projects in industry ...

Omer Tugrul Karaguzel; Khee Poh Lam

2011-12-01T23:59:59.000Z

446

Retrofit and Testing of a Pre-Turbo, Diesel Oxidation Catalyst...  

Broader source: Energy.gov (indexed) [DOE]

Retrofit and Testing of a Pre-Turbo, Diesel Oxidation Catalyst on a Tier 0, SD60M Freight Locomotive Achieving Over 50% PM Reduction Retrofit and Testing of a Pre-Turbo, Diesel...

447

2014-11-25 Issuance: Energy Conservation Standards for Small, Large, and Very Large Air-cooled Commercial Package Air Conditioning and Heating Equipment; Extension of Public Comment Period  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register extension of the public comment period regarding energy conservation standards for small, large and very large air-cool commercial package air conditioning and heating equipment, as issued by the Deputy Assistant Secretary for Energy Efficiency on November 25, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

448

2014-09-18 Issuance: Energy Conservation Standard for Small, Large, and Very Large Air-Cooled Commercial Package Air Conditioning and Heating Equipment; Notice of Proposed Rulemaking and Public Meeting  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register Notice of Proposed Rulemaking and Public Meeting regarding Energy Conservation Standards for Small, large, and Very Large Air-Cooled Commercial Package Air Conditioning and Heating Equipment, as issued by the Assistant Secretary for Energy Efficiency and Renewable Energy on September 18, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

449

A Path to Successful Energy Retrofits: Early Collaboration Through  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Through Through Integrated Project Delivery Teams Title A Path to Successful Energy Retrofits: Early Collaboration Through Integrated Project Delivery Teams Publication Type Report Refereed Designation Refereed LBNL Report Number LBNL-6130E Year of Publication 2012 Authors Parrish, Kristen Date Published 10/2012 Publisher Lawrence Berkeley National Laboratory Abstract This document guides you through a process for the early design phases of retrofit projects to help you mitigate frustrations commonly experienced by building owners and designers. It outlines the value of forming an integrated project delivery team and developing a communication and information-sharing infrastructure that fosters collaboration. This guide does not present a complete process for designing an energy retrofit for a building. Instead, it focuses on the early design phase tasks related to developing and selecting energy efficiency measures (EEMs) that benefit from collaboration, and highlights the resulting advantages.

450

Home Retrofits Save Money, Add Value | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Home Retrofits Save Money, Add Value Home Retrofits Save Money, Add Value Home Retrofits Save Money, Add Value February 22, 2010 - 11:40am Addthis Joshua DeLung What are the key facts? Tanya $41,000 in home upgrades were possible through the Energy Independence Program. Tanya to pay back the money through installments on her property taxes. After she did the upgrades, Tanya's energy bills are now down 50 percent. As the real estate business rebounds, homebuilders are seeing some growth because of a new nationwide awareness of energy efficiency and the money it can save homeowners. Tanya Narath, of Santa Rosa, Calif., was already taking advantage of renewable energy and green building techniques - her home has had solar panels on its roof for years, and solar tubes draw in natural light to brighten even the darkest spaces of the home. But then Tanya had an energy

451

Financing Energy Efficiency Retrofits in Oakland (A Roundtable Discussion)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Financing Energy Efficiency Retrofits in Oakland (A Roundtable Discussion) Financing Energy Efficiency Retrofits in Oakland (A Roundtable Discussion) Speaker(s): Emily Kirsch Justin Butler Date: July 15, 2008 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Galen Barbose James Lutz Cities around the country are developing large-scale programs to retrofit portions of their housing stock, seizing the 'low-hanging fruit' of energy efficiency. As buildings account for roughly 40% of energy consumption in the U.S., such efforts can substantially reduce carbon-based energy use while providing jobs and growing the local green economy. The main barriers to this work are the necessary upfront capital, the risk of losing investment if properties are sold before savings are realized, and the issue of "split incentives" in rented housing units. In order for Oakland

452

Home Retrofits Save Money, Add Value | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Home Retrofits Save Money, Add Value Home Retrofits Save Money, Add Value Home Retrofits Save Money, Add Value February 22, 2010 - 11:40am Addthis Joshua DeLung What are the key facts? Tanya $41,000 in home upgrades were possible through the Energy Independence Program. Tanya to pay back the money through installments on her property taxes. After she did the upgrades, Tanya's energy bills are now down 50 percent. As the real estate business rebounds, homebuilders are seeing some growth because of a new nationwide awareness of energy efficiency and the money it can save homeowners. Tanya Narath, of Santa Rosa, Calif., was already taking advantage of renewable energy and green building techniques - her home has had solar panels on its roof for years, and solar tubes draw in natural light to brighten even the darkest spaces of the home. But then Tanya had an energy

453

Cincinnati Canvassing Spreads Retrofitting Message | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Cincinnati Canvassing Spreads Retrofitting Message Cincinnati Canvassing Spreads Retrofitting Message Cincinnati Canvassing Spreads Retrofitting Message May 28, 2010 - 3:07pm Addthis A volunteer canvasses the Mt. Washington neighborhood to spread awareness about home energy audits in the area. | Photo Courtesy GCEA A volunteer canvasses the Mt. Washington neighborhood to spread awareness about home energy audits in the area. | Photo Courtesy GCEA Lindsay Gsell What are the key facts? With help from the Greater Cincinnati Energy Alliance (GCEA), this resident was able to get his home energy audited for only $50, saving approximately $300 from the average audit cost. Stuart Schaefer's home sits on a quaint, tree-lined street in Wyoming, Ohio. Although he's always enjoyed the neighborhood and his house in the

454

Window Company Booming from Retrofits | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Window Company Booming from Retrofits Window Company Booming from Retrofits Window Company Booming from Retrofits October 30, 2009 - 12:09pm Addthis Joshua DeLung Don't try telling John Haddon's family that Friday the 13th is unlucky. They have more reason to believe in divine intervention than luck. After buying Accu-Weld Feb. 13, 2009 - a windows and doors company that laid off 70 employees in 2008 - the business is doing great, thanks to the family's commitment to energy efficiency and the Recovery Act, signed into law just four days later. John didn't know much about the Recovery Act then, but now he's convinced the stimulus has dramatically improved profits. "The Recovery Act coming on board shortly after we purchased the company has been a boost to our business and window makers in general," John says

455

Energy SmartPARKS Retrofitting Parks, Landmarks | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Energy SmartPARKS Retrofitting Parks, Landmarks Energy SmartPARKS Retrofitting Parks, Landmarks Energy SmartPARKS Retrofitting Parks, Landmarks March 19, 2010 - 3:45pm Addthis Joshua DeLung Energy SmartPARKS is a program formed through collaboration between the U.S. Departments of Energy and the Interior to help the National Park Service make America's parks and landmarks more energy-efficient. Several examples are already in place, including one just down the street from Energy's Washington, D.C., home - that example is the prominent Washington Monument, towering up 555 feet from the heart of our nation's capital. An advanced new lighting system for the Washington Monument greatly improves the monument's lighting, and it also decreases the energy used to light the obelisk while increasing security in the area. Through the

456

SMUD - PV Residential Retrofit Buy-Down | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

PV Residential Retrofit Buy-Down PV Residential Retrofit Buy-Down SMUD - PV Residential Retrofit Buy-Down < Back Eligibility Residential Savings Category Solar Buying & Making Electricity Maximum Rebate No maximum limit Program Info State California Program Type Utility Rebate Program Rebate Amount $0.20/watt AC. Incentive is adjusted based on expected performance. The incentive can be paid directly to the customer or to the installer. Provider Sacramento Municipal Utility District SMUD offers an incentive of $0.20 per watt (W) AC to residential customers who install grid-connected photovoltaic (PV) systems. Customers do not have to contract directly with SMUD-approved contractors for the purchase and installation of the system, however this is recommended. All systems must be permitted and installed by B, C-10, or C-46 contractors. The incentive

457

Window Company Booming from Retrofits | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Window Company Booming from Retrofits Window Company Booming from Retrofits Window Company Booming from Retrofits October 30, 2009 - 12:09pm Addthis Joshua DeLung Don't try telling John Haddon's family that Friday the 13th is unlucky. They have more reason to believe in divine intervention than luck. After buying Accu-Weld Feb. 13, 2009 - a windows and doors company that laid off 70 employees in 2008 - the business is doing great, thanks to the family's commitment to energy efficiency and the Recovery Act, signed into law just four days later. John didn't know much about the Recovery Act then, but now he's convinced the stimulus has dramatically improved profits. "The Recovery Act coming on board shortly after we purchased the company has been a boost to our business and window makers in general," John says

458

Philadelphia Gas Works - Commercial and Industrial EnergySense Retrofit  

Broader source: Energy.gov (indexed) [DOE]

Philadelphia Gas Works - Commercial and Industrial EnergySense Philadelphia Gas Works - Commercial and Industrial EnergySense Retrofit Program (Pennsylvania) Philadelphia Gas Works - Commercial and Industrial EnergySense Retrofit Program (Pennsylvania) < Back Eligibility Commercial Industrial Multi-Family Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heating Home Weatherization Commercial Weatherization Sealing Your Home Construction Design & Remodeling Windows, Doors, & Skylights Ventilation Manufacturing Insulation Appliances & Electronics Water Heating Maximum Rebate $75,000 Program Info Expiration Date 8/31/2015 State Pennsylvania Program Type Utility Rebate Program Rebate Amount Varies Widely Philadelphia Gas Works' (PGW) Commercial and Industrial Retrofit Incentive Program is part of EnergySense, PGW's portfolio of energy efficiency

459

New Jersey Landlord, Tenants See Benefits of Retrofits | Department of  

Broader source: Energy.gov (indexed) [DOE]

New Jersey Landlord, Tenants See Benefits of Retrofits New Jersey Landlord, Tenants See Benefits of Retrofits New Jersey Landlord, Tenants See Benefits of Retrofits April 9, 2010 - 2:32pm Addthis Joshua DeLung Some might think that only single-family homes are being weatherized across America, but eligible renters in Newark, N.J., are taking advantage of the increases in savings, safety and comfort that come with weatherization. Sunny Uberio is the owner of Realty Management Systems LLC in Newark, N.J., where he had his three apartment buildings evaluated for their energy efficiency and found that the older heating and cooling systems and other measures were insufficient when it came to saving energy. La Casa de Don Pedro, a local community action agency, was able to help Sunny by weatherizing the buildings.

460

Maryland Abuzz with Retrofit Converts | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Abuzz with Retrofit Converts Abuzz with Retrofit Converts Maryland Abuzz with Retrofit Converts January 7, 2010 - 2:06pm Addthis Joshua DeLung Tim Kenny got a college degree in fisheries biology, but his real passion lies in something he's spent the last 20 years doing - helping American families in Maryland, Pennsylvania and Washington, D.C. He makes his living in the clean energy economy by finding ways people can save money on their energy bills and make their homes cleaner, safer and more comfortable. About four years ago, he started Housewarmers, a business that performs energy audits and weatherization work on the homes of everyday clientele. Tim also helps community action agencies complete weatherization work as a contractor through a separate nonprofit business, C&O Conservation, for

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Mini-Split Heat Pumps Multifamily Retrofit Feasibility Study  

SciTech Connect (OSTI)

Mini-split heat pumps can provide space heating and cooling in many climates and are relatively affordable. These and other features make them potentially suitable for retrofitting into multifamily buildings in cold climates to replace electric resistance heating or other outmoded heating systems. This report investigates the suitability of mini-split heat pumps for multifamily retrofits. Various technical and regulatory barriers are discussed and modeling was performed to compare long-term costs of substituting mini-splits for a variety of other heating and cooling options. A number of utility programs have retrofit mini-splits in both single family and multifamily residences. Two such multifamily programs are discussed in detail.

Dentz, J.; Podorson, D.; Varshney, K.

2014-05-01T23:59:59.000Z

462

New Jersey Landlord, Tenants See Benefits of Retrofits | Department of  

Broader source: Energy.gov (indexed) [DOE]

Jersey Landlord, Tenants See Benefits of Retrofits Jersey Landlord, Tenants See Benefits of Retrofits New Jersey Landlord, Tenants See Benefits of Retrofits April 9, 2010 - 2:32pm Addthis Joshua DeLung Some might think that only single-family homes are being weatherized across America, but eligible renters in Newark, N.J., are taking advantage of the increases in savings, safety and comfort that come with weatherization. Sunny Uberio is the owner of Realty Management Systems LLC in Newark, N.J., where he had his three apartment buildings evaluated for their energy efficiency and found that the older heating and cooling systems and other measures were insufficient when it came to saving energy. La Casa de Don Pedro, a local community action agency, was able to help Sunny by weatherizing the buildings. "Through their program, I was able to get new boilers installed, new

463

Sustainable Energy Resources for Consumers Webinar on Residential Geothermal Heat Pump Retrofit Transcript  

Broader source: Energy.gov [DOE]

Transcript for a U.S. Department of Energy Webinar on Dec. 14, 2010, about residential geothermal heat pump retrofits

464

Measuring Energy-Saving Retrofits: Experiences from the LoanSTAR Program  

E-Print Network [OSTI]

on the process of acquiring and analyzing data to measure savings from energy conservation retrofits when budgets are a constraint....

Claridge, D. E.; Heffington, W. M.; O'Neal, D. L.; Turner, W. D.; Haberl, J. S.; Reddy, T. A.

2005-09-27T23:59:59.000Z

465

ISSUANCE 2014-12-23: Energy Conservation Program for Certain Industrial Equipment: Energy Conservation Standards and Test Procedures for Commercial Heating, Air-Conditioning, and Water-Heating Equipment, Notice of Proposed Rulemaking  

Broader source: Energy.gov [DOE]

Energy Conservation Program for Certain Industrial Equipment: Energy Conservation Standards and Test Procedures for Commercial Heating, Air-Conditioning, and Water-Heating Equipment, Notice of Proposed Rulemaking

466

Measure Guideline: Three High Performance Mineral Fiber Insulation Board Retrofit Solutions  

SciTech Connect (OSTI)

This Measure Guideline describes a high performance enclosure retrofit package that uses mineral fiber insulation board. The Measure Guideline describes retrofit assembly and details for wood frame roof and walls and for cast concrete foundations. This Measure Guideline is intended to serve contractors and designers seeking guidance for non-foam exterior insulation retrofit.

Neuhauser, K.

2015-01-01T23:59:59.000Z

467

Passive-solar-retrofit study for the United States Navy  

SciTech Connect (OSTI)

A passive solar retrofit study has been conducted for the United States Navy at the Los Alamos National Laboratory. The purpose of the study was to determine the energy savings obtainable in concrete block buildings from several passive solar heating strategies. A procedure involving the use of test cell data and computer simulation was employed to assess the merits of six retrofit options. The six strategies selected were chosen on the basis of providing a series of options that will deliver increasing energy savings at the cost of correspondingly increased levels of commitment.

Wray, W.O.; Miles, C.R.

1981-01-01T23:59:59.000Z

468

Pilot Demonstration of Phased Retrofits in Florida Homes (Fact Sheet)  

SciTech Connect (OSTI)

The Florida Solar Energy Center (FSEC) and Florida Power and Light are pursuing a collaborative energy research/utility partnership to retrofit a large number of homes using a phased approach. The project is creating detailed data on the energy and economic performance of two levels of home retrofit - simple and deep. Acting as a pilot, this project is expected to provide the information necessary to significantly reduce energy use through much larger community-scale projects in collaboration with utilities, program administrators and other market leader stakeholders.

Not Available

2014-08-01T23:59:59.000Z

469

Energy consumption and optimization of internally cooled/heated liquid desiccant air-conditioning system: A case study in Hong Kong  

Science Journals Connector (OSTI)

Abstract LDAC (liquid desiccant air-conditioning system) is promising for reducing the energy consumption, and improving the indoor air quality. In this paper, the operation performance of LDAC with internally cooled/heated dehumidifier/regenerator was simulated and optimized. The cooling tower and solar collectors were employed as the cooling/heating source. Four nested iteration loops were developed and solved for system modeling. A typical commercial building in Hong Kong was selected as a case study, which air-conditioning load was obtained by Energy-plus. Results show that with the increase of solar collector area, the electricity consumption of AC (air-conditioning systems) system reduced by 1135% in original system, but only a part of dehumidification demand was handled with liquid desiccant ventilation, which led to a low chiller COP (coefficient of performance). By adding a cooling coil for the solution entering dehumidifier, the electricity saving effectively increased to 2247%, while the heat demand for regeneration also increased by 17%. So, a heat exchanger between water leaving regenerator and solution leaving dehumidifier was introduced. With the lower thermal requirement (reduced by 20%) and higher solar fraction (increased from 30 to 40%), the saving further increased to 2949%, and the required collector area obviously reduced by 5060% for the similar energy saving purpose.

Ronghui Qi; Lin Lu

2014-01-01T23:59:59.000Z

470

Improving Best Air Conditioner Efficiency by 20-30% through a High Efficiency Fan and Diffuser Stage Coupled with an Evaporative Condenser Pre-Cooler  

SciTech Connect (OSTI)

The Florida Solar Energy Center (FSEC) conducted a research project to improve the best residential air conditioner condenser technology currently available on the market by retrofitting a commercially-available unit with both a high efficiency fan system and an evaporative pre-cooler. The objective was to integrate these two concepts to achieve an ultra-efficient residential air conditioner design. The project produced a working prototype that was 30% more efficient compared to the best currently-available technologies; the peak the energy efficiency ratio (EER) was improved by 41%. Efficiency at the Air-Conditioning and Refrigeration Institute (ARI) standard B-condition which is used to estimate seasonal energy efficiency ratio (SEER), was raised from a nominal 21 Btu/Wh to 32 Btu/Wh.

Parker, Danny S; Sherwin, John R; Raustad, Richard

2014-04-10T23:59:59.000Z

471

Energy Consumption Simulation and Analysis of Heat Pump Air Conditioning System in Wuhan by the BIN Method  

E-Print Network [OSTI]

to simulate the annual energy consumption of groundwater heat pump systems (GWHPS) for an office building in Wuhan. Its annual energy consumption was obtained and compared with the partner of the air source heat pump systems (ASHPS). The results show...

Wen, Y.; Zhao, F.

2006-01-01T23:59:59.000Z

472

Measured Cooling Performance and Potential for Buried Duct Condensation in a 1991 Central Florida Retrofit Home  

SciTech Connect (OSTI)

FSEC conducted energy performance monitoring of two existing residences in Central Florida that were undergoing various retrofits. These homes were occupied by FSEC researchers and were fully instrumented to provide detailed energy, temperature, and humidity measurements. The data provided feedback about the performance of two levels of retrofit in two types of homes in a hot-humid climate. This report covers a moderate-level retrofit and includes two years of pre-retrofit data to characterize the impact of improvements. The other home is a 'deep energy retrofit' (detailed in a separate report) that has performed at near zero energy with a photovoltaic (PV) system and extensive envelope improvements.

Chasar, D.; Withers, C.

2013-02-01T23:59:59.000Z

473

DOE/EA-1673: Environmental Assessment for Energy Conservation Program for Certain Industrial Equipment: Energy Conservation Standards and Test Procedures for Commercial Heating, Air-Conditioning, and Water-Heating Equipment (July 2009)  

Broader source: Energy.gov (indexed) [DOE]

3 3 Environmental Assessment for 10 CFR 431 Energy Conservation Program for Certain Industrial Equipment: Energy Conservation Standards and Test Procedures for Commercial Heating, Air- Conditioning, and Water-Heating Equipment July 2009 8-i CHAPTER 8. ENVIRONMENTAL ASSESSMENT TABLE OF CONTENTS 8.1 INTRODUCTION ............................................................................................................... 8-1 8.2 AIR QUALITY ANALYSIS ............................................................................................... 8-1 8.3 AIR POLLUTANT DESCRIPTIONS ................................................................................ 8-1 8.4 AIR QUALITY REGULATIONS ...................................................................................... 8-3

474

Retrofitting Existing Buildings for Demand Response & Energy Efficiency  

E-Print Network [OSTI]

Retrofitting Existing Buildings for Demand Response & Energy Efficiency www, enable demand response, improve productivity for older facilities. - Use technologies which minimize are notified by PG&E by 3pm the day prior to the critical event. - Customers with Auto-Demand Response enabled

California at Los Angeles, University of

475

An actuarial approach to retrofit savings in buildings  

SciTech Connect (OSTI)

An actuarial method has been developed for determining energy savings from retrofits from energy use data for a number of buildings. This method should be contrasted with the traditional method of using pre- and post-retrofit data on the same building. This method supports the U.S. Department of Energy Building Performance Database of real building performance data and related tools that enable engineering and financial practitioners to evaluate retrofits. The actuarial approach derives, from the database, probability density functions (PDFs) for energy savings from retrofits by creating peer groups for the users pre post buildings. From the energy use distribution of the two groups, the savings PDF is derived. This provides the basis for engineering analysis as well as financial risk analysis leading to investment decisions. Several technical issues are addressed: The savings PDF is obtained from the pre- and post-PDF through a convolution. Smoothing using kernel density estimation is applied to make the PDF more realistic. The low data density problem can be mitigated through a neighborhood methodology. Correlations between pre and post buildings are addressed to improve the savings PDF. Sample size effects are addressed through the Kolmogorov--Smirnov tests and quantile-quantile plots.

Subbarao, Krishnappa; Etingov, Pavel V.; Reddy, T. A.

2014-01-01T23:59:59.000Z

476

A Retrofit Tool for Improving Energy Efficiency of Commercial Buildings  

SciTech Connect (OSTI)

Existing buildings will dominate energy use in commercial buildings in the United States for three decades or longer and even in China for the about two decades. Retrofitting these buildings to improve energy efficiency and reduce energy use is thus critical to achieving the target of reducing energy use in the buildings sector. However there are few evaluation tools that can quickly identify and evaluate energy savings and cost effectiveness of energy conservation measures (ECMs) for retrofits, especially for buildings in China. This paper discusses methods used to develop such a tool and demonstrates an application of the tool for a retrofit analysis. The tool builds on a building performance database with pre-calculated energy consumption of ECMs for selected commercial prototype buildings using the EnergyPlus program. The tool allows users to evaluate individual ECMs or a package of ECMs. It covers building envelope, lighting and daylighting, HVAC, plug loads, service hot water, and renewable energy. The prototype building can be customized to represent an actual building with some limitations. Energy consumption from utility bills can be entered into the tool to compare and calibrate the energy use of the prototype building. The tool currently can evaluate energy savings and payback of ECMs for shopping malls in China. We have used the tool to assess energy and cost savings for retrofit of the prototype shopping mall in Shanghai. Future work on the tool will simplify its use and expand it to cover other commercial building types and other countries.

Levine, Mark; Feng, Wei; Ke, Jing; Hong, Tianzhen; Zhou, Nan

2013-06-06T23:59:59.000Z

477

ARRA Proposed Award: The Affordable Multifamily Retrofit Initiative (the Initiative)  

E-Print Network [OSTI]

retrofits that improve the tenant unit energy efficiency, including energy audit policies, procedures Projected Energy Savings: 1,000 MWh annually Projected Gas Savings: 100,000 therms annually GHG Energy Workforce Training Program(s): The Initiative will coordinate and collaborate with the Citibuild

478

Affordable solar home retrofit design and initial evaluation  

SciTech Connect (OSTI)

This paper describes the design construction and initial testing for a low cost live-in solar porch retrofit that has been developed by the Rural Housing Research Unit. The system was effective providing all the heat needed to keep the house warm during clear sunny winter days and it was effective in keeping the sun's energy out during summer periods.

Newman, J.O.; Newman, R.

1985-01-01T23:59:59.000Z

479

Building America Webinar: Who's Successfully Doing Deep Energy Retrofits?  

Broader source: Energy.gov [DOE]

The webinar on June 25, 2014, focused on specific Building America projects that highlighted real-world examples of deep energy retrofits (DER) that are meeting with technical and market success. Presenters focused on technical strategies, modeled and actual performance results, and project costs.

480

Building America Webinar: Who's Successfully Doing Deep Energy Retrofits?  

Broader source: Energy.gov [DOE]

The webinar will focus on specific Building America projects and case studies that highlight real-world examples of deep energy retrofits that are meeting with technical and market success. Presenters will focus on technical strategies, modeled and actual performance results, and project costs.

Note: This page contains sample records for the topic "air conditioning retrofits" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Experimental characterization of an industrial pulverized coal-fired furnace under deep staging conditions  

SciTech Connect (OSTI)

Measurements have been performed in a 300 MWe, front-wall-fired, pulverized-coal, utility boiler. This boiler was retrofitted with boosted over fire air injectors that allowed the operation of the furnace under deeper staging conditions. New data are reported for local mean gas species concentration of O{sub 2}, CO, CO{sub 2}, NOx, gas temperatures and char burnout measured at several ports in the boiler including those in the main combustion and staged air regions. Comparisons of the present data with our previous measurements in this boiler, prior to the retrofitting with the new over fire system, show lower O{sub 2} and higher CO concentrations for the new situation as a consequence of the lower stoichiometry in the main combustion zone associated with the present boiler operating condition. Consistently, the measured mean NOx concentrations in the main combustion zone are now lower than those obtained previously, yielding emissions below 500 mg/Nm{sup 3}at 6% O{sub 2}. Finally, the measured values of particle burnout at the furnace exit are acceptable being those measured in the main combustion zone comparable with those obtained with the conventional over fire system.

Costa, M.; Azevedo, J.L.T. [Universidade Tecnica de Lisboa, Lisbon (Portugal)

2007-07-01T23:59:59.000Z

482

School Conditions Will Continue to Earn Failing Grades  

E-Print Network [OSTI]

the conditions audit at the Washington State Elementary School, three concerns were identified as targets for possible retrofit work. Ventilation for both the gym and large multipurpose community room was controlled by timers set for periods of occupancy... the conditions audit at the Washington State Elementary School, three concerns were identified as targets for possible retrofit work. Ventilation for both the gym and large multipurpose community room was controlled by timers set for periods of occupancy...

Sonne, J. K.; Vieira, R. K.; Cummings, J. B.

2006-01-01T23:59:59.000Z

483

Investigation and Analysis of Energy Consumption and Cost of Electric Air Conditioning Systems in Civil Buildings in Changsha  

E-Print Network [OSTI]

based on the electric refrigeration. Among the heat sources, the prospect of gas boilers is better. In addition, the air source heat pump depends heavily on whether some crucial issues such as frost can be solved during its application. The water-source...

Xie, D.; Chen, J.; Zhang, G.; Zhang, Q.

2006-01-01T23:59:59.000Z

484

Energy Innovation Hub Report Shows Philadelphia-area Building Retrofits  

Broader source: Energy.gov (indexed) [DOE]

Report Shows Philadelphia-area Building Report Shows Philadelphia-area Building Retrofits Could Support 23,500 Jobs Energy Innovation Hub Report Shows Philadelphia-area Building Retrofits Could Support 23,500 Jobs November 10, 2011 - 10:36am Addthis This is the Greater Philadelphia Innovation Cluster located at the Philadelphia Navy Yard, which has 270 buildings that consortium members can use to conduct energy efficiency experiments. The Energy Efficiency Buildings Hub is one of the U.S. Department of Energy’s research centers called Energy Innovation Hubs. | Photo courtesy of EEB Hub This is the Greater Philadelphia Innovation Cluster located at the Philadelphia Navy Yard, which has 270 buildings that consortium members can use to conduct energy efficiency experiments. The Energy Efficiency

485

New Jersey SmartStart Buildings - New Construction and Retrofits |  

Broader source: Energy.gov (indexed) [DOE]

You are here You are here Home » New Jersey SmartStart Buildings - New Construction and Retrofits New Jersey SmartStart Buildings - New Construction and Retrofits < Back Eligibility Commercial Fed. Government Industrial Institutional Local Government Nonprofit Schools State Government Savings Category Heating & Cooling Commercial Heating & Cooling Heating Cooling Manufacturing Other Construction Heat Pumps Appliances & Electronics Commercial Lighting Lighting Water Heating Maximum Rebate General: incentives may be limited to $500,000 per utility account per year. Custom Measures: limited to lesser of $0.16/kWh or $1.60/therm saved annually; 50% of total costs; or buydown to a 1-year payback period Program Info Funding Source New Jersey Societal Benefits Charge (public benefits fund)

486

Gas Technology Institute (Partnership for Advanced Residential Retrofit) |  

Open Energy Info (EERE)

Technology Institute (Partnership for Advanced Residential Retrofit) Technology Institute (Partnership for Advanced Residential Retrofit) Jump to: navigation, search Name Gas Technology Institute Place Des Plaines, IL Website http://www.gastechnology.org/ Coordinates 42.0333623°, -87.8833991° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.0333623,"lon":-87.8833991,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

487

Expert Meeting Report: Retrofit Implementation - A Neighborhood at a Time  

Broader source: Energy.gov (indexed) [DOE]

Retrofit Implementation - Retrofit Implementation - A Neighborhood at a Time Dianne Griffiths Consortium for Advanced Residential Buildings (CARB) April 2012 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, subcontractors, or affiliated partners makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply

488

MassSAVE (Electric) - Commercial Retrofit Program | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

You are here You are here Home » MassSAVE (Electric) - Commercial Retrofit Program MassSAVE (Electric) - Commercial Retrofit Program < Back Eligibility Commercial Construction Industrial Installer/Contractor Institutional Local Government Schools State Government Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Manufacturing Other Construction Heat Pumps Heating Appliances & Electronics Commercial Lighting Lighting Maximum Rebate 50% of cost of upgraded equipment, or an amount that buys down the cost of the project to a 1.5 year simple payback. Program Info Start Date 1/1/2011 State Massachusetts Program Type Utility Rebate Program Rebate Amount Fluorescent Systems: $10-$50/fixture High and Low Bay Fluorescents: Up to $100/fixture LED Interior: $15-$50/fixture

489

Cascade Apartments - Deep Energy Multifamily Retrofit , Kent, Washington (Fact Sheet)  

SciTech Connect (OSTI)

In December of 2009-10, King County Housing Authority (KCHA) implemented energy retrofit improvements in the Cascade multifamily community, located in Kent, Washington (marine climate.)This research effort involved significant coordination from stakeholders KCHA, WA State Department of Commerce, utility Puget Sound Energy, and Cascade tenants. This report focuses on the following three primary BA research questions : 1. What are the modeled energy savings using DOE low income weatherization approved TREAT software? 2. How did the modeled energy savings compare with measured energy savings from aggregate utility billing analysis? 3. What is the Savings to Investment Ratio (SIR) of the retrofit package after considering utility window incentives and KCHA capitol improvement funding.

Not Available

2014-02-01T23:59:59.000Z

490

Resource handbook for low-income residential retrofits  

SciTech Connect (OSTI)

The purpose of the handbook is to provide technical assistance to state grantees participating in the Partnerships in Low-Income Residential Retrofit (PILIRR) Program. PILIRR is a demonstration program aimed at identifying innovative, successful approaches to developing public and private support for weatherization of low-income households. The program reflects the basic concept that responsibility for financial support for conservation activities such as low-income residential retrofitting is likely to gradually shift from the DOE to the states and the private sector. In preparing the handbook, PNL staff surveyed over 50 programs that provide assistance to low-income residents. The survey provided information on factors that contribute to successful programs. PNL also studied the winning PILIRR proposals (from the states of Florida, Iowa, Kentucky, Oklahoma and Washington) and identified the approaches proposed and the type of information that would be most helpful in implementing these approaches.

Callaway, J.W.; Brenchley, D.L.; Davis, L.J.; Ivey, D.L.; Smith, S.A.; Westergard, E.J.

1987-04-01T23:59:59.000Z

491

Proposed passive solar retrofit project for the Tennessee Vallley Authority  

SciTech Connect (OSTI)

A program has been advocated to introduce the widespread use of passive solar techniques as an energy source for the heating and cooling of existing housing in the TVA region. The development of curricula and training of TVA's energy advisors, Valley contractors, and suppliers of passive solar retrofit products and services is discussed. In addition, the program will train and certify local teams who will provide technical assistance to contractors, inform the public through construction workshops, classes, information dissemination, and provide seminars for special target audiences such as bankers and real estate agents. The passive solar retrofit applications to be included in this program are attached solar greenhouses or sunspaces, direct and indirect solar gain systems, shading or screening devices such as trees and awnings, and movable insulation.

Yanda, S.B. (Solar Applications Branch, Hinesburg, VT); Hicks, S.D.

1980-01-01T23:59:59.000Z

492

Deep Energy Retrofit Performance Metric Comparison: Eight California Case Studies  

SciTech Connect (OSTI)

In this paper we will present the results of monitored annual energy use data from eight residential Deep Energy Retrofit (DER) case studies using a variety of performance metrics. For each home, the details of the retrofits were analyzed, diagnostic tests to characterize the home were performed and the homes were monitored for total and individual end-use energy consumption for approximately one year. Annual performance in site and source energy, as well as carbon dioxide equivalent (CO{sub 2}e) emissions were determined on a per house, per person and per square foot basis to examine the sensitivity to these different metrics. All eight DERs showed consistent success in achieving substantial site energy and CO{sub 2}e reductions, but some projects achieved very little, if any source energy reduction. This problem emerged in those homes that switched from natural gas to electricity for heating and hot water, resulting in energy consumption dominated by electricity use. This demonstrates the crucial importance of selecting an appropriate metric to be used in guiding retrofit decisions. Also, due to the dynamic nature of DERs, with changes in occupancy, size, layout, and comfort, several performance metrics might be necessary to understand a projects success.

Walker, Iain; Fisher, Jeremy; Less, Brennan

2014-06-01T23:59:59.000Z

493

Forrestal Building Lighting Retrofit Second Live Test Demonstration (LTD)  

SciTech Connect (OSTI)

This report describes and summarizes the Forrestal Building Lighting Retrofit Live Test demonstration (LTD) performed by Pacific Northwest Laboratory (PNL) in Room 5E-080 of the DOE Forrestal Building in Washington, D.C. The purpose of the LTD was to evaluate proposed lighting retrofits for compliance with the requirements laid out in the request for proposal (RFP) for the Shared Energy Savings (SES) Lighting Retrofit Project for the Forrestal Building, Washington, D.C. Testing was conducted from March 9 through March 18, 1992, and again on August 3 through August 6, 1992. Four contractors were initially tested in March. Then, two contractors were retested in August due to changes in the rebate schedule for electronic ballasts being offered by the Potomac Electric Power Company (PEPCO), the utility servicing the Forrestal Building. The two contractors tested in March were retested with different ballasts, tubes, and reflectors. The results from these new tests are reported here and compared with those from the earlier tests.

Halverson, M.A.; Schmelzer, J.R.; Parker, G.B.

1993-02-01T23:59:59.000Z

494

Combining Energy Efficiency Building Retrofits and Onsite Generation: An  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Combining Energy Efficiency Building Retrofits and Onsite Generation: An Combining Energy Efficiency Building Retrofits and Onsite Generation: An Emerging Business Model from the ESCO Industry Title Combining Energy Efficiency Building Retrofits and Onsite Generation: An Emerging Business Model from the ESCO Industry Publication Type Conference Paper Year of Publication 2011 Authors Satchwell, Andrew, Peter H. Larsen, and Charles A. Goldman Conference Name 2011 ACEEE Summer Study on Energy Efficiency in Industry Date Published 2011 Publisher ACEEE Conference Location Niagara Falls, New York Abstract The U.S. energy service company (ESCO) industry is an example of a private-sector business model where energy efficiency savings are delivered to customers primarily through the use of performance-based contracts. Despite the onset of a severe economic recession, we estimate that the U.S. ESCO industry grew about 7% per year from 2006 to 2008 with annual revenues of about $4.1 billion in 2008. About 75% of industry revenues are directly related to the installation of energy efficiency measures at existing buildings in the institutional, commercial, and industrial sectors.

495

Advanced furnace air staging and burner modifications for ultra-low NOx firing systems  

SciTech Connect (OSTI)

Overfire air is an effective means to reduce NOx emissions from coal fired furnaces. The current range of overfire air usage on wall-fired boilers in the US is in the range of 10 to 20%. In most cases this is enough to achieve current Title IV NOx reduction requirements. Future applications are likely to go beyond 20% Overfire Air to reduce NOx further for lower investment and operating costs of SCR retrofits. Summer ozone reduction requires NOx emissions of 0.15 lb/MBtu. Currently, industry is exploring the conditions under which this goal is attainable. The paper discussed the approach to achieve ultra-low NOx emissions by using advanced furnace air staging. It describes the unique approach of redesigning the burner to maintain low NOx burner performance when the overfire air system is added or increased in capacity. The impact on furnace corrosion and unburned carbon losses are presented. A case study is used to show the effects of overfire air both on emissions and unburned carbon.

McCarthy, K.; Laux, S.; Grusha, J.

1999-07-01T23:59:59.000Z

496

Clean Energy Works Portland: A Model For Retrofit Projects | Department of  

Broader source: Energy.gov (indexed) [DOE]

Clean Energy Works Portland: A Model For Retrofit Projects Clean Energy Works Portland: A Model For Retrofit Projects Clean Energy Works Portland: A Model For Retrofit Projects June 4, 2010 - 4:34pm Addthis Paul Lester Communications Specialist for the Office of Energy Efficiency and Renewable Energy What does this mean for me? Clean Energy Works Portland (CEWP) seeks to cut energy costs for residents, create green jobs and slash greenhouse gases by retrofitting 500 homes in the Portland area by this fall. A program developed by the city of Portland, Ore., is proving to be a model of public and private collaboration for large-scale home retrofit projects throughout the country. Clean Energy Works Portland (CEWP) seeks to cut energy costs for residents, create green jobs and slash greenhouse gases by retrofitting 500 homes in

497

An Assessment of Envelope Measures in Mild Climate Deep Energy Retrofits  

SciTech Connect (OSTI)

Energy end-uses and interior comfort conditions have been monitored in 11 Deep Energy Retrofits (DERs) in a mild marine climate. Two broad categories of DER envelope were identified: first, bringing homes up to current code levels of insulation and airtightness, and second, enhanced retrofits that go beyond these code requirements. The efficacy of envelope measures in DERs was difficult to determine, due to the intermingled effects of enclosure improvements, HVAC system upgrades and changes in interior comfort conditions. While energy reductions in these project homes could not be assigned to specific improvements, the combined effects of changes in enclosure, HVAC system and comfort led to average heating energy reductions of 76percent (12,937 kWh) in the five DERs with pre-retrofit data, or 80percent (5.9 kWh/ft2) when normalized by floor area. Overall, net-site energy reductions averaged 58percent (15,966 kWh; n=5), and DERs with code-style envelopes achieved average net-site energy reductions of 65percent (18,923 kWh; n=4). In some homes, the heating energy reductions were actually larger than the whole house reductions that were achieved, which suggests that substantial additional energy uses were added to the home during the retrofit that offset some heating savings. Heating system operation and energy use was shown to vary inconsistently with outdoor conditions, suggesting that most DERs were not thermostatically controlled and that occupants were engaged in managing the indoor environmental conditions. Indoor temperatures maintained in these DERs were highly variable, and no project home consistently provided conditions within the ASHRAE Standard 55-2010 heating season comfort zone. Thermal comfort and heating system operation had a large impact on performance and were found to depend upon the occupant activities, so DERs should be designed with the occupants needs and patterns of consumption in mind. Beyond-code building envelopes were not found to be strictly necessary for the achievement of deep energy savings in existing uninsulated homes in mild marine climates, provided that other energy end-uses were comprehensively reduced. We recommend that mild climate DERs pursue envelopes in compliance with the 2012 International Energy Conservation Code (IECC) and pair these with high efficiency, off-the-shelf HVAC equipment. Enhanced building envelopes should be considered in cases where very low heating energy use (<1,000 kWh/year or <0.5 kWh/ft2-year) and enhanced thermal comfort (ASHRAE 55-2010) are required, as well as in those situations where substantial energy uses are added to the home, such as decorative lighting, cooling or smart home A/V and communication equipment.

Walker, Iain; Less, Brennan

2014-06-01T23:59:59.000Z