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Note: This page contains sample records for the topic "fan central air" 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

Supply fan energy use in pressurized underfloor air distribution systems  

E-Print Network [OSTI]

air-water devices like fan coil units and water source heatsuch as VAV boxes and fan coil units. One fairly typical

Webster, Tom P.E.; Bauman, Fred P.E.; Ring, Erik P.E.

2000-01-01T23:59:59.000Z

2

Choosing the right boiler air fans at Weston 4  

SciTech Connect (OSTI)

When it came to choosing the three 'big' boiler air fans - forced draft, induced draft and primary air, the decision revolved around efficiency. The decision making process for fan selection for the Western 4 supercritical coal-fired plant is described in this article. 3 photos.

Spring, N.

2009-04-15T23:59:59.000Z

3

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

4

Supply Fan Control for Constant Air Volume Air Handling Units  

E-Print Network [OSTI]

Since terminal boxes do not have a modulation damper in constant volume (CV) air handling unit (AHU) systems, zone reheat coils have to be modulated to maintain the space temperature with constant supply airflow. This conventional control sequence...

Cho, Y.; Wang, G.; Liu, M.

2007-01-01T23:59:59.000Z

5

Integrating VAV zone requirements with supply fan operation. [Variable Air Volume  

SciTech Connect (OSTI)

The use of communicating direct digital controls (DDC) with distributed intelligence offers new opportunities for energy conservation while maintaining occupant comfort in commercial buildings. Integrating control within a single DDC panel improves performance. Integrating control by communications between multiple controllers can further enhance system operation. One example is a DDC static pressure reset strategy for supply fan operation in variable air volume (VAV) supply air distribution systems. This strategy integrates the requirements of the VAV terminal units serving the building zones to minimize fan energy use. This article describes terminal unit operation, supply fan control, concurrent polling, operational data and power savings.

Warren, M.L. (ASI Controls, San Ramon, CA (United States)); Norford, L.K. (Massachusetts Inst. of Tech., Cambridge (United States))

1993-04-01T23:59:59.000Z

6

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,

7

Optimized Fan Control In Variable Air Volume HVAC Systems Using Static Pressure Resets: Strategy Selection and Savings Analysis.  

E-Print Network [OSTI]

??The potential of static pressure reset (SPR) control to save fan energy in variable air volume HVAC systems has been well documented. Current research has (more)

Kimla, John

2010-01-01T23:59:59.000Z

8

List of Ceiling Fan Incentives | Open Energy Information  

Open Energy Info (EERE)

Fan Incentives Fan Incentives Jump to: navigation, search The following contains the list of 99 Ceiling Fan Incentives. CSV (rows 1 - 99) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP Ohio (Electric) - Residential Energy Efficiency Rebate Program (Ohio) Utility Rebate Program Ohio Residential Building Insulation Ceiling Fan Central Air conditioners Custom/Others pending approval Duct/Air sealing Heat pumps Lighting Motors Programmable Thermostats Windows Yes AEP Ohio (Gas) - Residential Energy Efficiency Rebate Program (Ohio) Utility Rebate Program Ohio Residential Building Insulation Ceiling Fan Central Air conditioners Custom/Others pending approval Dehumidifiers Duct/Air sealing Heat pumps Lighting Motors Programmable Thermostats

9

Building America Case Study: Evaluating Through-Wall Air Transfer Fans, Pittsburgh, Pennsylvania (Fact Sheet)  

SciTech Connect (OSTI)

In this project, Building America team IBACOS performed field testing in a new construction unoccupied test house in Pittsburgh, Pennsylvania to evaluate heating, ventilating, and air conditioning (HVAC) distribution systems during heating, cooling, and midseason conditions. Four air-based HVAC distribution systems were assessed:-a typical airflow ducted system to the bedrooms, a low airflow ducted system to the bedrooms, a system with transfer fans to the bedrooms, and a system with no ductwork to the bedrooms. The relative ability of each system was considered with respect to relevant Air Conditioning Contractors of America and ASHRAE standards for house temperature uniformity and stability, respectively.

Not Available

2014-10-01T23:59:59.000Z

10

Optimized Fan Control In Variable Air Volume HVAC Systems Using Static Pressure Resets: Strategy Selection and Savings Analysis  

E-Print Network [OSTI]

The potential of static pressure reset (SPR) control to save fan energy in variable air volume HVAC systems has been well documented. Current research has focused on the creation of reset strategies depending on specific system features...

Kimla, John

2010-07-14T23:59:59.000Z

11

central air conditioner | OpenEI  

Open Energy Info (EERE)

central air conditioner central air conditioner Dataset Summary Description View 2010 energy efficiency data from AeroSys Inc, Coaire, Cold Point, First Operations, LG Electronics, Nordyne, and Quietside manufacturers. Data includes cooling capacity, cooling performance, heating capacity, and heating performance. Spreadsheet was created by combining the tables in pdf files that are included in the zip file. Source Energy Applicance Data - United States Federal Trade Commission, www.ftc.gov Date Released Unknown Date Updated Unknown Keywords air conditioner central air conditioner efficiency efficient energy heat pump Data application/vnd.ms-excel icon 2010_CentralAC_All.xls (xls, 82.4 KiB) application/zip icon 2010CentralAirConditioner.zip (zip, 398.2 KiB) Quality Metrics Level of Review Some Review

12

Impacts of Static Pressure Reset on VAV System Air Leakage, Fan Power and Thermal Energy - Part 2: Case Demonstration for a Typical Climate System  

E-Print Network [OSTI]

In Part 1 of this paper, the theoretical models, integrating the fan airflow, fan head, air leakage factors, are developed to analyze the impacts of the static pressure reset on both pressure dependent and pressure independent terminal boxes...

Liu, M.; Zheng, K.; Wu, L.; Wang, Z.; Johnson, C.

2007-01-01T23:59:59.000Z

13

Inferring Air Pollution by Sniffing Social Media Shike Mei, Han Li, Jing Fan, Xiaojin Zhu and Charles R. Dyer  

E-Print Network [OSTI]

Inferring Air Pollution by Sniffing Social Media Shike Mei, Han Li, Jing Fan, Xiaojin Zhu issue of air pollution in China and elsewhere in the world is to monitor it. While more physical prediction performance of our approach. I. INTRODUCTION Air pollution is a significant issue in China

Dyer, Charles R.

14

Demonstration of Intelligent Control and Fan Improvements in Computer Room Air Handlers  

E-Print Network [OSTI]

ECM motor, plug fan, variable frequency drive i ii TABLE OFcontrol system and variable frequency drives can be added toby adding variable frequency drives (VFDs) to fans with

Coles, Henry

2014-01-01T23:59:59.000Z

15

Performance Assessment of Photovoltaic Attic Ventilator Fans  

Broader source: Energy.gov [DOE]

A case study of photovoltaic attic ventilator fans was conducted on an occupied single family home in Central Florida. Two fans were installed at mid-summer in an instrumented home where attic air temperature, meteorological conditions and space cooling electric power were measured. The home already had an attic radiant barrier, but still experienced attic air temperatures in excess of 130oF.

16

Impacts of Static Pressure Reset on VAV System Air Leakage, Fan Power and Thermal Energy - Part I: Theoretical Model and Simulation  

E-Print Network [OSTI]

As for a variable air volume (VAV) system, the air duct static pressure is a typical control variable maintained by modulating supply fan speed. The static pressure equals to the summation of the duct pressure loss downstream of the sensor...

Liu, M.; Feng, J.; Wang, Z.; Wu, L.; Zheng, K.; Pang, W.

2007-01-01T23:59:59.000Z

17

Central Air Conditioner Enforcement Policy Statement  

Broader source: Energy.gov [DOE]

DOE will not seek civil penalties for violations of the regional standards applicable to central air conditioners that occur prior to July 1, 2016, provided that the violations are related to the distribution in commerce of units manufactured prior to January 1, 2015.

18

Covered Product Category: Residential Central Air Conditioners  

Broader source: Energy.gov [DOE]

FEMP provides acquisition guidance across a variety of product categories, including residential central air conditioners (CACs), which are an ENERGY STAR-qualified product category. Federal laws and requirements mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law.

19

Fans for Cooling | Department of Energy  

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

Fans for Cooling Fans for Cooling Fans for Cooling May 30, 2012 - 7:46pm Addthis Ceiling fans circulate air in a room to help keep occupants cool. | Photo courtesy of ©iStockphoto/jimkruger Ceiling fans circulate air in a room to help keep occupants cool. | Photo courtesy of ©iStockphoto/jimkruger What does this mean for me? You may be able to keep your home cool with energy-efficient and well-placed fans. Fans are less expensive to operate than air conditioners. Circulating fans include ceiling fans, table fans, floor fans, and fans mounted to poles or walls. These fans create a wind chill effect that will make you more comfortable in your home, even if it's also cooled by natural ventilation or air conditioning. Ceiling Fans Ceiling fans are considered the most effective of these types of fans,

20

Demonstration of Intelligent Control and Fan Improvements in Computer Room Air Handlers  

E-Print Network [OSTI]

8.0 percent. The reduced electrical energy use at the siteamount of fan electrical energy can be conserved. The4 megawatts; overall site electrical energy savings provided

Coles, Henry

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "fan central air" 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

Demonstration of Intelligent Control and Fan Improvements in Computer Room Air Handlers  

E-Print Network [OSTI]

metrics. Consider the power for cooling saved because of theadditional infrastructure cooling power based upon 0.464 kW/Associated Infrastructure Cooling Power) Due to Fan Upgrade

Coles, Henry

2014-01-01T23:59:59.000Z

22

Covered Product Category: Residential Central Air Conditioners | Department  

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

Central Air Conditioners Central Air Conditioners Covered Product Category: Residential Central Air Conditioners October 7, 2013 - 10:38am Addthis ENERGY STAR Qualified Products FEMP provides acquisition guidance across a variety of product categories, including residential central air conditioners (CACs), which are an ENERGY STAR®-qualified product category. Federal laws and executive orders mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law. Most manufacturers display the ENERGY STAR label on complying models. For a model not displaying this label, check the manufacturer's literature to determine if it meets the efficiency requirements outlined by ENERGY STAR. Performance Requirements for Federal Purchases

23

Design and Operation of Fan-Coil Units in Using River Water as Chilled Water  

E-Print Network [OSTI]

Based on the case research for China's first central air conditioning system utilizing natural cool river water as chilled water, this paper analyzes the technical design-and-innovation process and operating characteristics of Fan-Coil Units (FCUs...

Jiang, A.; Chen, H.; Ma, W.; Zhu, H.

2006-01-01T23:59:59.000Z

24

Development of models for series and parallel fan variable air volume terminal units  

E-Print Network [OSTI]

for the series and parallel units, with coefficients varying by size and manufacturer. Statistical modeling utilized SAS software (2002). Fan power and airflow data were collected at downstream static pressures over a range from 0.1 to 0.5 in. w.g. (25 to 125 Pa...

Furr, James C., Jr

2007-09-17T23:59:59.000Z

25

List of Central Air conditioners Incentives | Open Energy Information  

Open Energy Info (EERE)

Central Air conditioners Incentives Central Air conditioners Incentives Jump to: navigation, search The following contains the list of 1032 Central Air conditioners Incentives. CSV (rows 1-500) CSV (rows 501-1000) CSV (rows 1001-1032) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP (Central and North) - CitySmart Program (Texas) Utility Rebate Program Texas Commercial Industrial Institutional Local Government Schools Boilers Central Air conditioners Chillers Comprehensive Measures/Whole Building Custom/Others pending approval Energy Mgmt. Systems/Building Controls Furnaces Heat pumps Lighting Lighting Controls/Sensors Motor VFDs Motors Roofs Windows Yes AEP (Central and SWEPCO) - Coolsaver A/C Tune Up (Texas) Utility Rebate Program Texas Commercial Installer/Contractor

26

Four Central Air Conditioners Determined Noncompliant With Energy  

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

Four Central Air Conditioners Determined Noncompliant With Energy Four Central Air Conditioners Determined Noncompliant With Energy Efficiency Standard Four Central Air Conditioners Determined Noncompliant With Energy Efficiency Standard October 3, 2011 - 9:21am Addthis The U.S. Department of Energy's Office of Enforcement issued a Notice of Noncompliance Determination (Notice) on September 27, 2011, to AeroSys, Inc. (AeroSys) regarding four models of central (through-the-wall) air conditioners that fail to meet Federal energy efficiency requirements. DOE tests revealed that AeroSys through-the-wall air conditioner models THDC-18S, THDC-18T, THDC-24S, and THDC-24T do not meet the minimum energy efficiency requirements set forth in DOE regulations. The Notice provides that AeroSys must inform those to whom it has sold the models that they do

27

Performance Analysis of Dual-Fan, Dual-Duct Constant Volume Air-Handling Units  

E-Print Network [OSTI]

,d) or the mixed air temperature (Tm,c). The value of the air leaving cooling coil (Tc,o) is the smaller of either the cold deck set point or the mixed air temperature (Tm,c). The value of the air leaving heating coil (Th,o) is the larger of either the hot deck...,d) or the mixed air temperature (Tm,c). The value of the air leaving cooling coil (Tc,o) is the smaller of either the cold deck set point or the mixed air temperature (Tm,c). The value of the air leaving heating coil (Th,o) is the larger of either the hot deck...

Joo, I. S.; Liu, M.

2001-01-01T23:59:59.000Z

28

Covered Product Category: Residential Central Air Conditioners...  

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

operate on single-phase current and have cooling capacities less than 65,000 Btuh. Room air conditioners (window and through-the-wall) are covered by a separate specification,...

29

Commercial Central Air Conditioners, Purchasing Specifications for Energy-Efficient Products (Fact Sheet)  

SciTech Connect (OSTI)

Energy efficiency purchasing specifications for federal procurements of commercial central air conditioners.

Not Available

2011-02-01T23:59:59.000Z

30

Improving Control of a Dual-Duct Single-Fan Variable Air Volume Systems  

E-Print Network [OSTI]

cold and hot air duct static pressure set points is presented. The paper also explores the interactions between the cold and hot deck temperatures and duct static pressures, and discusses the impact of non-ideal deck temperature settings on duct static...

Wei, G.; Martinez, J.; Minihan, T.; Brundidge, T.; Claridge, D. E.; Turner, W. D.

2003-01-01T23:59:59.000Z

31

THE WORLD'S Biggest Fan Collection  

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

WORLD'S Biggest Fan Collection WORLD'S Biggest Fan Collection If you only know the Big Ass Fan Company as the preeminent designer and manufacturer of high volume, low speed fans for factories and cows, it's time you get to know us better. While we continue to lead the way in industrial and agricultural air movement, we've also refined these designs to bring the same innovation and benefits of our famous fans to circulate an ocean of air in sound-sensitive commercial spaces and homes. And when our customers said they wanted something for smaller spaces, we listened - and we think you'll like the results. We've got you covered - ceiling to floor, wall to door! Features  New patented airfoil system uses 10 Powerfoil airfoils, winglets and patent-pending AirFence(tm) technology to increase

32

Noise from Centrifugal Fans  

Science Journals Connector (OSTI)

The sound power radiated from the discharge of centrifugal fans of diameters between 3 and 6 1 2 ? inches has been measured as a function of fan dimensions and operating conditions. The measurements were made by arranging the fan under test to discharge into an 11 foot nonreflecting tube in which the static pressure could be controlled. Air was exhausted from the tube through a side port of high acoustic impedance located part way down the tube. The detectingmicrophone which is located in the tube between the exit port and the acoustic termination is out of the air stream and therefore not subject to wind noise. The total discharge noise power P in watts in the range 75 to 10 000 cps was found empirically to be given by P?=?0.90??10 ?4 (D/W)?H 3 ?+?5.2??10 ?10 (Q 5 /W 4 D 8 ) where D and W are the fan diameter and width respectively in inches H is the static pressure in inches of water and Q is the air flow in cubic feet per minute. The angular frequency of the fan wheel does not appear explicitly since this quantity is uniquely specified by H Q D and W. Spectral analysis indicates that the power is concentrated primarily at low frequencies. Application of the results of this study to design problems will be discussed.

R. B. Goldman; G. C. Maling

1955-01-01T23:59:59.000Z

33

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

34

Fan Dai  

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

Fan Dai Fan Dai China Energy Group Lawrence Berkeley National Laboratory 1 Cyclotron Road MS 90R2002 Berkeley CA 94720 Office Location: 90-2117S (510) 486-4000 FDai@lbl.gov Fan Dai is a Ph.D. Candidate in Environmental Policy at the College of Environmental Science and Forestry, State University of New York, and a LL.M. Candidate at Berkeley School of Law, University of California. Fan's research during her stay in LBNL's China Energy Group focuses on Energy Efficiency Governance, U.S.-China Clean Energy Partnership, the Carbon Cap-and-Trade Program in California and what China can learn from California's program. Prior to LBNL, she interned at the China National Center for Climate Change Strategy and International Cooperation (NCSC), China Youth Action Climate Network (CYCAN), and China State Forestry

35

Energy performance of air distribution systems part II: room air stratification full scale testing  

E-Print Network [OSTI]

and are connected to a fan coil unit by flexible ductwork asvariable air volume fan coil units typically used in

Webster, Tom; Lukaschek, Wolfgang; Dickeroff, Darryl; Bauman, Fred

2007-01-01T23:59:59.000Z

36

Cooling with a Whole House Fan | Department of Energy  

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

Cooling with a Whole House Fan Cooling with a Whole House Fan Cooling with a Whole House Fan May 30, 2012 - 6:54pm Addthis Whole house fan installed as part of a home retrofit project in California. | Photo courtesy of Lieko Earle, NREL. Whole house fan installed as part of a home retrofit project in California. | Photo courtesy of Lieko Earle, NREL. What does this mean for me? A whole-house fan may be sufficient to cool your house, at least for part of the year. In many climates, a whole-house fan can save you money and maintain comfort during the cooling season. How does it work? A whole-house fan works by pulling air in through windows and exhausting it through the attic and roof. Whole house cooling using a whole house fan can substitute for an air conditioner most of the year in most climates. Whole house fans combined

37

Modeling of ECM Controlled Series Fan-powered VAV Terminal Units  

E-Print Network [OSTI]

Semi-empirical models for series fan-powered variable air volume terminal units (FPTUs) were developed based on models of the primary, plenum, fan airflow and the fan power consumption. The experimental setups and test procedures were developed...

Yin, Peng

2011-10-21T23:59:59.000Z

38

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

39

Field Study of Exhaust Fans for Mitigating Indoor Air Quality Problems: Final Report to Bonneville Power Administration  

E-Print Network [OSTI]

strategy, developed by Honeywell, Inc. , is describeda separate report. [Honeywell, 1986]. Ref erences ASHRAE (Atlanta, pp. 422-452. Honeywell (1986). "Indoor Air

Grimsrud, David T.

2009-01-01T23:59:59.000Z

40

Field Study of Exhaust Fans for Mitigating Indoor Air Quality Problems: Final Report to Bonneville Power Administration  

E-Print Network [OSTI]

Air Quality Measure in the BPA Weatherization Program",teMperatures for any period. BPA-IAQ Project AND 127 +32*(meet electric load obligations. (BPA) to undertake energy

Grimsrud, David T.

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "fan central air" 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

STATE OF CALIFORNIA FAN POWER CONSUMPTION  

E-Print Network [OSTI]

STATE OF CALIFORNIA FAN POWER CONSUMPTION CEC-MECH-4C (Revised 08/09) CALIFORNIA ENERGY COMMISSION FAN POWER CONSUMPTION MECH-4C PROJECT NAME: DATE: NOTE: Provide one copy of this worksheet for each Systems or Variable Air Volume (VAV) Systems when using the Prescriptive Approach. See Power Consumption

42

Development of a High Efficiency Ceiling Fan  

E-Print Network [OSTI]

The potential of ceiling fans to improve comfort during the cooling season is well documented (Rohles et al.. 1983; Fairey et al.. 1986). There are at least two cases: In the first where air conditioning is unavailable, adding ceiling fans may...

Parker, D. S.; Callahan, M. P.; Sonne, J. K.; Su, G. H.; Hibbs, B. D.

2000-01-01T23:59:59.000Z

43

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

44

Demonstration of Intelligent Control and Fan Improvements in Computer Room  

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

Demonstration of Intelligent Control and Fan Improvements in Computer Room Demonstration of Intelligent Control and Fan Improvements in Computer Room Air Handlers Title Demonstration of Intelligent Control and Fan Improvements in Computer Room Air Handlers Publication Type Report Refereed Designation Unknown LBNL Report Number LBNL-6007E Year of Publication 2012 Authors Coles, Henry C., Steve E. Greenberg, and Corrine Vita Document Number LBNL-6007E Date Published 12/2012 Publisher Lawrence Berkeley National Laboratory City Berkeley, CA Keywords air distribution, building technology and urban systems department, computer room air handler, crah control, data center, data center crah, ec fan, ecm, ecm fan, fan speed control, high tech and industrial systems group, plug fan, variable frequency drive, vfd, wireless control Abstract

45

An Evaluation of Steady-State Dehumidification Characteristics of Residential Central Air Conditioners, Final Report  

E-Print Network [OSTI]

of 1973, and the passsage oflegislation requiring development of mandatory minimum efficiency standards for new central air conditioners (and other appliances),manufacturers have been improving the efficiency of central air conditioners dramatically... is for the standard ARI rating conditions (95 F outdoor, 80 F indoor dry bulb, and 67 F indoorwet bulb temperatures). There is not a strong correlation between efficiency (as measured in SEER) and SHR. Both linear and quadraticcorrelations were attempted for the data...

O'Neal, D. L.; Chan, N.; Somasundaram, S.; Katipamula, S.

1987-01-01T23:59:59.000Z

46

Air-Side Energy Use Calculations for Four HVAC Systems: Dual Duct Constant Volume (DDCAV), Dual Duct Variable Volume (DDVAV), Constant Volume with Reheat (CAVRH), Variable Volume with Reheat (VAVRH), Four Pipe Fan Coil Unit (FC), Four Pipe Induction Unit (FI), and Single Zone (SZ) Systems, Revised June 2002  

E-Print Network [OSTI]

(CAVRH), and variable volume with reheat (VAVRH), four pipe fan coil unit (FC), four pipe induction unit (FI), and a single zone air conditioning system (SZ). These calculations are presented in spreadsheets that include a running commentary so...

Haberl, J. S.; Bou-Saada, T. E.; Saman, N. F.

2001-01-01T23:59:59.000Z

47

E-Print Network 3.0 - air treatment system Sample Search Results  

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... , water treatment equipment,...

48

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...

49

E-Print Network 3.0 - air handling systems Sample Search Results  

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... , water treatment equipment,...

50

Central power generation versus distributed generation e An air quality assessment in the South Coast Air Basin of California  

E-Print Network [OSTI]

., Suite 200, San Francisco, CA 94111, USA c Advanced Power and Energy Program, Department of Mechanical obstacles to transmission line additions may force even central power generation back into air basins by the year 2020. The intermittent nature of renewable sources like wind and solar power may require

Dabdub, Donald

51

Central solar energy receiver  

DOE Patents [OSTI]

An improved tower-mounted central solar energy receiver for heating air drawn through the receiver by an induced draft fan. A number of vertically oriented, energy absorbing, fin-shaped slats are radially arranged in a number of concentric cylindrical arrays on top of the tower coaxially surrounding a pipe having air holes through which the fan draws air which is heated by the slats which receive the solar radiation from a heliostat field. A number of vertically oriented and wedge-shaped columns are radially arranged in a number of concentric cylindrical clusters surrounding the slat arrays. The columns have two mirror-reflecting sides to reflect radiation into the slat arrays and one energy absorbing side to reduce reradiation and reflection from the slat arrays.

Drost, M. Kevin (Richland, WA)

1983-01-01T23:59:59.000Z

52

Synchronous and Cogged Fan Belt Performance Assessment  

SciTech Connect (OSTI)

The GSA Regional GPG Team commissioned the National Renewable Energy Laboratory (NREL) to perform monitoring of cogged V-belts and synchronous belts on both a constant volume and a variable air volume fan at the Byron G. Rodgers Federal Building and U.S. Courthouse in Denver, Colorado. These motor/fan combinations were tested with their original, standard V-belts (appropriately tensioned by an operation and maintenance professional) to obtain a baseline for standard operation. They were then switched to the cogged V-belts, and finally to synchronous belts. The power consumption by the motor was normalized for both fan speed and air density changes. This was necessary to ensure that the power readings were not influenced by a change in rotational fan speed or by the power required to push denser air. Finally, energy savings and operation and maintenance savings were compiled into an economic life-cycle cost analysis of the different belt options.

Cutler, D.; Dean, J.; Acosta, J.

2014-02-01T23:59:59.000Z

53

Submarine fan lobes  

SciTech Connect (OSTI)

Submarine fan lobes constitute major hydrocarbon reservoirs throughout the world. Therefore, a clear understanding of their geometry and facies relationships is critical for exploring and exploiting these sandstone bodies effectively. However, a multitude of submarine fan lobe terminologies (e.g., depositional lobe, suprafan lobe, fan lobe, erosional lobe, channelized lobe, ponded lobe, leveed-valley lobe, type I lobe, and type II lobe) advocating widely different meanings, has flourished in the sedimentologic literature. A critical evaluation of this problem has resulted in the following suggestions: (1) lobes are considered to be turbidite sand bodies that develop at the mouths of channels in deep-sea fan environments; (2) the term depositional lobe should be restricted to lower-fan deposits of fans that exhibit facies C and thickening-upward cycles; (3) the term suprafan lobe refers to middle-fan deposits of certain small, sand-rich, modern fans that exhibit a convex-upward depositional bulge in seismic reflection profiles; (4) the terms fan lobe, erosional lobe, channelized lobe, ponded lobe, and leveed-valley lobe do not represent true channel-mouth deposits and therefore are potentially confusing; (5) lower-fan sheet sands of large modern fans may not be equivalent to depositional lobes of ancient fans; and (6) popular fan models with lobes are not always applicable because they disregard large modern fans without lobes (e.g., Mississippi fan).

Shanmugam, G.

1989-03-01T23:59:59.000Z

54

Fan Systems | Department of Energy  

Office of Environmental Management (EM)

to save energy in fan systems. Fan Tools Tools to Assess Your Energy System Fan System Assessment Tool (FSAT) Qualified Specialists Qualified Specialists have passed a rigorous...

55

The Effect of Reduced Evaporator Air Flow on the Performance of a Residential Central Air Conditioner  

E-Print Network [OSTI]

This paper discusses the measured degradation in performance of a residential air conditioning system operating under reduced evaporator air flow. Experiments were conducted using a R-22 three-ton split-type cooling system with a short-tube orifice...

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

56

List of Whole House Fans Incentives | Open Energy Information  

Open Energy Info (EERE)

Whole House Fans Incentives Whole House Fans Incentives Jump to: navigation, search The following contains the list of 26 Whole House Fans Incentives. CSV (rows 1 - 26) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active Alliant Energy Interstate Power and Light (Gas and Electric) - Farm Equipment Energy Efficiency Incentives (Iowa) Utility Rebate Program Iowa Agricultural Agricultural Equipment Ceiling Fan Clothes Washers Custom/Others pending approval Dishwasher Doors Heat recovery Lighting Motor VFDs Motors Refrigerators Water Heaters Windows Whole House Fans Room Air Conditioners Ground Source Heat Pumps Yes Alliant Energy Interstate Power and Light - Farm Equipment Energy Efficiency Incentives (Minnesota) Utility Rebate Program Minnesota Agricultural Agricultural Equipment

57

Fan System Assessment Tool  

Broader source: Energy.gov [DOE]

The Fan System Assessment Tool (FSAT) is a free online software tool that helps industrial users quantify energy use and savings opportunities in industrial fan systems. Use FSAT to understand how well your fan systems are operating, determine the economic benefit of system modifications, and establish which options are most economically viable when multiple opportunities exist for system modification.

58

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 ......

59

Central solar-energy receiver  

DOE Patents [OSTI]

An improved tower-mounted central solar energy receiver for heating air drawn through the receiver by an induced draft fan is described. A number of vertically oriented, energy absorbing, fin-shaped slats are radially arranged in a number of concentric cylindrical arrays on top of the tower coaxially surrounding a pipe having air holes through which the fan draws air which is heated by the slats which receive the solar radiation from a heliostat field. A number of vertically oriented and wedge-shaped columns are radially arranged in a number of concentric cylindrical clusters surrounding the slat arrays. The columns have two mirror-reflecting sides to reflect radiation into the slat arrays and one energy absorbing side to reduce reradiation and reflection from the slat arrays.

Not Available

1981-10-27T23:59:59.000Z

60

Evaluation of the cooling fan efficiency index.  

E-Print Network [OSTI]

for Figure 3. Fan power versus cooling fan the computer fanparameters (cooling effect, fan power and CFE) involved inthat the typical power consumption of cooling fans is lower

Schiavon, Stefano; Melikov, Arsen

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "fan central air" 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

13 SEER Standard for Central Air Conditioners and Heat Pumps (released in AEO2005)  

Reports and Publications (EIA)

In January 2004, after years of litigation in a case that pitted environmental groups and Attorneys General from 10 states against the U.S. Secretary of Energy, the U.S. Court of Appeals for the Second Circuit reestablished the central air conditioner and heat pump standard originally set in January 200. The Courts ruling, which struck down a May 2002 rollback of the 2001 standard to a 12 Seasonal Energy Efficiency Ratio (SEER) mandates that all new central air conditioners and heat pumps meet a 13 SEER standard by January 2006, requiring a 30% increase in efficiency relative to current law. The Annual Energy Outlook 2005 reference case incorporates the 13 SEER standard as mandated by the Courts ruling.

2005-01-01T23:59:59.000Z

62

EVALUATING THE RISK OF AIR POLLUTION TO FORESTS IN CENTRAL AND EASTERN EUROPE  

SciTech Connect (OSTI)

Foliar damage to trees by air pollution in Central and Eastern Europe has been a major scientific and political issue. Emissions of toxic gases such as sulfur dioxide and nitrogen oxides can have wide-ranging effects on local and regional vegetation that can be compounded by other environmental stresses to plant growth. Since uptake and physiological effects of these gases on tree leaves are largely mediated by stomata, surrogate methods for estimating pollutant conductances into leaves and forest canopies may lead to risk assessments for major vegetation types that can then be used in regional planning. Management options to ameliorate or mitigate air pollutant damage to forests and losses in productivity are likely to be more difficult to widely implement than on-the-stack emissions abatement, Informed management and policy decisions regarding Central and Eastern European forests are dependent on the development of quantitative tools and models for risk assessment of the effects of atmospheric pollutants on ecosystem health and productivity.

ELLSWORTH,D.S.; OLEKSYN,J.

1997-12-01T23:59:59.000Z

63

Central Hudson Gas and Electric (Electric) - Residential Energy Efficiency  

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

Central Hudson Gas and Electric (Electric) - Residential Energy Central Hudson Gas and Electric (Electric) - Residential Energy Efficiency Rebate Program Central Hudson Gas and Electric (Electric) - Residential Energy Efficiency Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Home Weatherization Commercial Weatherization Sealing Your Home Ventilation Heat Pumps Manufacturing Appliances & Electronics Water Heating Maximum Rebate Air Sealing: $600 Program Info State New York Program Type Utility Rebate Program Rebate Amount Central AC: $400 - $600, depending on efficiency Air-source Heat Pumps: $400 - $600, depending on efficiency Electronically Commutated Motor (ECM) Furnace Fans: $200 Electric Heat Pump Water Heaters: $400 Programmable Thermostats: $25

64

2014-10-30 Issuance: Energy Conservation Program: Energy Conservation Standards for Residential Central Air Conditioners and Heat Pumps, Request for Information  

Broader source: Energy.gov [DOE]

Energy Conservation Program: Energy Conservation Standards for Residential Central Air Conditioners and Heat Pumps, Request for Information

65

Morphology and seismic stratigraphy of the Toyama deep sea fan  

E-Print Network [OSTI]

. C. Hilde The Toyama Deep Sea Fan, a contemporary depositional feature located in the Japan Sea, is a canyon-fed elongate fan system with pronounced lobes in both the Yamato and Japan Basins. The Toyama Fan is the eighth largest modern fan system... with a surface area greater than 108, 000 square kilometers. Deposits of this Quaternary turbidite system range in thickness from less than 150 m to more than 750 m. The meandering Toyama Deep Sea Channel extends northward from the central coast...

Shepherd, David Barton

2012-06-07T23:59:59.000Z

66

Fan Energy Savings Decisions  

E-Print Network [OSTI]

Axial fans are used for thousands of industrial applications consuming millions of kilowatts daily. The decision that saves dollars is to either automatically change fan speed or change blade pitch to save up to 50 percent of consumed power over a...

Monroe, R. C.

67

Ceiling Fan | Open Energy Information  

Open Energy Info (EERE)

TODO: Add description List of Ceiling Fan Incentives Retrieved from "http:en.openei.orgwindex.php?titleCeilingFan&oldid267151" Category: Articles with outstanding TODO tasks...

68

High Efficiency Fans and High Efficiency Electrical Motors  

E-Print Network [OSTI]

Replacing nominal efficient electrical motors with premium efficiency can save on electrical power costs in cotton gins. Connected horsepower load on industrial air fans is approximately 60% of the total horsepower in a typical cotton gin...

Breedlove, C. W.

69

New Energy Efficiency Standards for Furnace Fans to Reduce Carbon...  

Office of Environmental Management (EM)

by at least 3 billion metric tons in total by 2030, equal to more than a year's carbon pollution from the entire U.S. electricity system. Furnace fans are used to circulate air...

70

Introduction of a Cooling Fan Efficiency Index  

E-Print Network [OSTI]

Cooling Effect, Fan Power, and Cooling-Fan Efficiency Index?t eq ) C F Fan Power, W (P f ) Cooling-Fan Efficiency (The measured cooling effect and fan power and the determined

Schiavon, Stefano; Melikov, Arsen

2009-01-01T23:59:59.000Z

71

Modelling air quality impact of a biomass energy power plant in a mountain valley in Central Italy  

E-Print Network [OSTI]

fuel power plants with those fuelled with modern biomass (IPCC, 2011). However, from an air qualityModelling air quality impact of a biomass energy power plant in a mountain valley in Central Italy a c t Pollutant increments due to a biomass power plant simulated with CALPUFF.

Curci, Gabriele

72

Delgada Fan, Pacific Ocean  

Science Journals Connector (OSTI)

The Delgada Fan, an irregularly shaped turbidite deposit extending more than 350 km offshore from northern California, consists of two large leveed-valley units each fed by a separate complex of coalescing sub...

William R. Normark; Christina E. Gutmacher

1985-01-01T23:59:59.000Z

73

Best Practice for Energy Efficient Cleanrooms: Fan-FilterUnits  

SciTech Connect (OSTI)

The HVAC systems in cleanrooms may use 50 percent or more of the total cleanroom energy use. Fan energy use accounts for a significant portion (e.g., over 50%) of the HVAC energy use in cleanrooms such as ISO Classes 3, 4, or 5. Three types of air-handling systems for recirculating airflows are commonly used in cleanrooms: (1) fan-tower systems with pressurized plenum, (2) ducted HEPA systems with distributed-fans, and (3) systems with fan-filter units. Because energy efficiency of the recirculation systems could vary significantly from system type to system type, optimizing aerodynamic performance in air recirculation systems appears to be a useful approach to improve energy efficiency in cleanrooms. Providing optimal airflows through careful planning, design and operation, including air change rate, airflow uniformity, and airflow speed, is important for controlling particle contamination in cleanrooms. In practice, the use of fan-filter units (FFUs) in the air-handling system is becoming more and more popular because of this type of system may offer a number of advantages. Often modular and portable than traditional recirculation airflow systems, FFUs are easier to install, and can be easily controlled and monitored to maintain filtration performance. Energy efficiency of air handling systems using fan-filter units can, however, be lower than their counterparts and may vary significantly from system to system because of the difference in energy performance, airflow paths, and the operating conditions of FFUs.

Xu, Tengfang

2005-06-15T23:59:59.000Z

74

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

75

Training: Fan Systems | Department of Energy  

Office of Environmental Management (EM)

in your plant. Fan System Assessment - 1-day workshop Availability: Onsite instructor-led and online Optimizing industrial fan systems can take on many forms, but any fan...

76

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

77

Thermal decay in underfloor air distribution (UFAD) systems: Fundamentals and influence on system performance  

E-Print Network [OSTI]

zones. Variable-speed fan coil units ( FCU) supply air tounit (AHU) including an economizer, chilled water cooling coil, hot water heating coil and supply fan.

Lee, Kwang Ho; Schiavon, Stefano; Bauman, Fred; Webster, Tom

2012-01-01T23:59:59.000Z

78

Simplified calculation method for design cooling loads in underfloor air distribution (UFAD) systems  

E-Print Network [OSTI]

the outlet side of fan coil units (FCU) served by variableunit (AHU) including a return air economizer, chilled water cooling coil, hot water heating coil and supply fan.

Schiavon, Stefano; Lee, Kwang Ho; Bauman, Fred; Webster, Tom

2010-01-01T23:59:59.000Z

79

Record of Communication Concerning Ceiling Fan and Ceiling Fan...  

Energy Savers [EERE]

of communications made to DOE staff on the subject of possible changes to standards and test procedures for ceiling fans and ceiling fan light kits. Memo on August 20 ALA DOE...

80

The ends of uncertainty: Air quality science and planning in Central California  

SciTech Connect (OSTI)

Air quality planning in Central California is complicated and controversial despite millions of dollars invested to improve scientific understanding. This research describes and critiques the use of photochemical air quality simulation modeling studies in planning to attain standards for ground-level ozone in the San Francisco Bay Area and the San Joaquin Valley during the 1990's. Data are gathered through documents and interviews with planners, modelers, and policy-makers at public agencies and with representatives from the regulated and environmental communities. Interactions amongst organizations are diagramed to identify significant nodes of interaction. Dominant policy coalitions are described through narratives distinguished by their uses of and responses to uncertainty, their exposures to risks, and their responses to the principles of conservatism, civil duty, and caution. Policy narratives are delineated using aggregated respondent statements to describe and understand advocacy coalitions. I found that models impacted the planning process significantly, but were used not purely for their scientific capabilities. Modeling results provided justification for decisions based on other constraints and political considerations. Uncertainties were utilized opportunistically by stakeholders instead of managed explicitly. Ultimately, the process supported the partisan views of those in control of the modeling. Based on these findings, as well as a review of model uncertainty analysis capabilities, I recommend modifying the planning process to allow for the development and incorporation of uncertainty information, while addressing the need for inclusive and meaningful public participation. By documenting an actual air quality planning process these findings provide insights about the potential for using new scientific information and understanding to achieve environmental goals, most notably the analysis of uncertainties in modeling applications. Concurrently, needed uncertainty information is identified and capabilities to produce it are assessed. Practices to facilitate incorporation of uncertainty information are suggested based on research findings, as well as theory from the literatures of the policy sciences, decision sciences, science and technology studies, consensus-based and communicative planning, and modeling.

Fine, James

2003-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "fan central air" 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

Fan System Assessment Tool Introduction  

Broader source: Energy.gov [DOE]

This presentation provides an introduction to the Fan System Assessment Tool (FSAT). With FSAT, users can calculate the amount of energy used by their fan system; determine system efficiency; and quantify the savings potential of an upgraded system.

82

Mass and fans in attached sunspaces  

SciTech Connect (OSTI)

The effect of thermal storage mass on the performance of an attached sunspace is investigated for a particular design in Boston. Mass in the sunspace and in the adjoining building are compared. Performance is evaluated in terms of temperature conditions in the sunspace and delivery of useful solar heat to the adjoining building. The dependence of the results on the manner of heat delivery is studied. Both natural convection and fan-forced air flow are included.

Jones, R.W.; McFarland, R.D.; Lazarus, G.S.

1982-01-01T23:59:59.000Z

83

Central Air Conditioners","Heat Pumps","Individual Air Conditioners","District Chilled Water","Central Chillers","Packaged  

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

5. Cooling Equipment, Floorspace, 1999" 5. Cooling Equipment, Floorspace, 1999" ,"Total Floorspace (million square feet)" ,"All Buildings","All Cooled Buildings","Cooling Equipment (more than one may apply)" ,,,"Residential-Type Central Air Conditioners","Heat Pumps","Individual Air Conditioners","District Chilled Water","Central Chillers","Packaged Air Conditioning Units","Swamp Coolers","Other" "All Buildings ................",67338,58474,8329,9147,14276,2750,12909,36527,2219,1312 "Building Floorspace" "(Square Feet)" "1,001 to 5,000 ...............",6774,4879,890,700,962,"Q","Q",2613,253,"Q" "5,001 to 10,000 ..............",8238,6212,1606,707,1396,"Q","Q",3197,181,"Q"

84

Comparison of modern Mississippi fan with selected ancient fans  

SciTech Connect (OSTI)

A comparison of the modern passive-margin Mississippi fan (DSDP Leg 96) with selected ancient active-margin fans reveals major differences in turbidite facies associations and seismic characteristics of the lower fan area. The lower Mississippi fan is composed of channel (facies B and F) and nonchannel sequences (facies C. and D), whereas lower fan areas of ancient active-margin fans are characterized by nonchannelized, thickening-upward depositional lobes (facies C and D) with sheetlike geometry. An absence of depositional lobes in the lower Mississippi fan is also suggested by a lack of mounded seismic reflections. Continuous and parallel seismic reflections of the lower Mississippi fan may represent sheet sands, but not those of true depositional lobes. In mature passive-margin fans, long, sinuous channels develop as a consequence of low gradients and the transport of sediment with a relatively low sand/mud ratio, and these channels develop lenticular sand bodies. In contrast, channels in active-margin fans are short and commonly braided as a result of high gradients and the transport of sediment with a relatively high sand/mud ratio. Braided channels characteristically develop sheetlike sand bodies.

Shanmugam, G.; Moiola, R.J.; McPherson, J.G.; O'Connell, S.

1988-09-01T23:59:59.000Z

85

Development of In-Situ Fan Curve Measurement with One Airflow Measurement  

E-Print Network [OSTI]

Development of In-situ Fan Curve Measurement with One Airflow Measurement Guopeng Liu, Ik-Seong Joo, Li Song, Mingsheng Liu, Ph.D., P.E. Energy Systems Laboratory University of Nebraska ABSTRACT Fan airflow is the key parameter for air... is another issue for this method. Therefore, it is very important to find an effective way to measure the airflow accurately. An airflow control named VSD volumetric tracking (VSDVT) has been developed by Liu [13] recently. This method uses fan...

Liu, G.; Joo, I. S.; Song, L.; Liu, M.

2003-01-01T23:59:59.000Z

86

Modeling of Electronically Commutated Motor Controlled Fan-powered Terminal Units  

E-Print Network [OSTI]

Feet Per Minute ECM Electronically Commutated Motor FPTU Fan Powered Terminal Unit Pdown Downstream Static Pressure PF Power Factor Pup Upstream Static Pressure SCR Silicon Controlled Rectifier THD Total Harmonic Distortion VAV Variable Air... parallel unit pressurizes the FPTU causing some of the primary air to leak out of the unit. Another difference between them is that series terminal units allow the primary air system to operate at a lower static pressure because the terminal unit fan...

Edmondson, Jacob Lee

2011-02-22T23:59:59.000Z

87

Command in Air War: Centralized vs. Decentralized Control of Combat Airpower  

E-Print Network [OSTI]

was in coordinating with other components. The Air Force developed the Air Operations Center (AOC) to put together battlespace information; it is not yet possible to do this at lower levels, so the AOC has become dominant in controlling air operations. Initially resistant to get involved in ongoing missions, commanders found the AOC

de Weck, Olivier L.

88

Energy Efficient Single Stack Exhaust Fan Systems (E3S3F)  

E-Print Network [OSTI]

This paper first investigates the fan energy performance of a constant air volume exhaust system. Two single stack energy efficient exhaust fan systems (E3S3F) are presented. The E3S3F-I has the static pressure sensor located at the inlet...

Wang, G.; Liu, M.

2001-01-01T23:59:59.000Z

89

Introduction of a Cooling Fan Efficiency Index  

E-Print Network [OSTI]

F Fan Power, W (P f ) Cooling-Fan Efficiency (CFE) C/W F/WSun et al. 2007). Thus, the CFE is defined by Equation 1.?t eq CFE = Cooling effect = ( 1 ) --------- P f Fan power

Schiavon, Stefano; Melikov, Arsen

2009-01-01T23:59:59.000Z

90

Evaluation of the cooling fan efficiency index.  

E-Print Network [OSTI]

named Cooling Fan Efficiency (CFE) that is the ratio betweenthe Cooling Fan Efficiency (CFE) is defined by Equation 1. ?t CFE ? ( ? 1 ) eq P f where P f is fan power, i.e the input

Schiavon, Stefano; Melikov, Arsen

2009-01-01T23:59:59.000Z

91

Turning on the Fan and Turning off the A/C | Department of Energy  

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

Turning on the Fan and Turning off the A/C Turning on the Fan and Turning off the A/C Turning on the Fan and Turning off the A/C September 20, 2010 - 3:00pm Addthis As part of some recent money- and energy-savings improvements I've been making to my home, a couple of weeks ago I installed a ceiling fan in my main living room. Chris Stewart Senior Communicator at DOE's National Renewable Energy Laboratory As part of some recent money- and energy-savings improvements I've been making to my home, a couple of weeks ago I installed a ceiling fan in my main living room. Part of my research led me to understand how ceiling fans are considered the most effective fans compared among table fans, floor fans, and fans mounted to poles or walls because they effectively circulate the air in a room to create a draft throughout the room.

92

Turning on the Fan and Turning off the A/C | Department of Energy  

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

Turning on the Fan and Turning off the A/C Turning on the Fan and Turning off the A/C Turning on the Fan and Turning off the A/C September 20, 2010 - 3:00pm Addthis As part of some recent money- and energy-savings improvements I've been making to my home, a couple of weeks ago I installed a ceiling fan in my main living room. Chris Stewart Senior Communicator at DOE's National Renewable Energy Laboratory As part of some recent money- and energy-savings improvements I've been making to my home, a couple of weeks ago I installed a ceiling fan in my main living room. Part of my research led me to understand how ceiling fans are considered the most effective fans compared among table fans, floor fans, and fans mounted to poles or walls because they effectively circulate the air in a room to create a draft throughout the room.

93

Performance of ECM controlled VAV fan powered terminal units  

E-Print Network [OSTI]

2006). The airflow and power consumption performance models had an R2 equal to 0.990 or greater for every terminal unit tested. An air leakage model was employed to account for leakage in the parallel designed VAV terminal units when the internal fan...

Cramlet, Andrew Charles

2009-05-15T23:59:59.000Z

94

Energy performance of underfloor air distribution systems part V: energy plus development  

E-Print Network [OSTI]

heating coil (fan outlet, coil inlet); the unit air outletVS) fan and reheat coil is an air system terminal unitfan is upstream of the heating coil (this is a blow-through unit).

Buhl, Fred

2007-01-01T23:59:59.000Z

95

Consumer life-cycle cost impacts of energy-efficiency standards for residential-type central air conditioners and heat pumps  

E-Print Network [OSTI]

Central Air Conditioners and Heat Pumps Energy ConservationW.R. Coleman. 1990. Heat Pump Life and Compressor LongevityC.C.. 1990. Predicting Future Heat Pump Production Volume

Rosenquist, Gregory; Chan, Peter; Lekov, Alex; McMahon, James; Van Buskirk, Robert

2001-01-01T23:59:59.000Z

96

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

97

The worldwide air transportation network: Anomalous centrality, community structure, and cities' global roles  

Science Journals Connector (OSTI)

...times associated with the image a country or region wants to project (14). The air transportation system is also responsible...network of cities, not of airports; for example, Newark Liberty International Airport, John F. Kennedy International Airport...

R. Guimer; S. Mossa; A. Turtschi; L. A. N. Amaral

2005-01-01T23:59:59.000Z

98

Use of VFDs on Asphalt Plant Induced Draft Fans  

E-Print Network [OSTI]

mixer at the burner end and flows across the aggregate as it moves toward the burner. The hot air Extrapolating savings achieved with 10 asphalt plants in the Intermountain West, almost 200,000 MWh of annual energy savings could be achieved... Name Damper Plant kWh Fan kWh Fan % Staker West Haven Outlet 1,021,040 ,68130% Ogden Plant Outlet 548,640 171,257 31% POM Plant Outlet 1,284,480 ,61825% Orem Plant Inlet 890,250 96,731 11% Staker Cedar City Outlet 502,320 115,949 23% Staker Beck Street...

Anderson, G. R.; Case, P. L.; Lowery, J.

2005-01-01T23:59:59.000Z

99

Save Energy with Axial Fans  

E-Print Network [OSTI]

= Trdh = CFM AAPP. A APPROACH V A~PROACH VAPP. < .5VFAN APPROACH VELOCITY FIG .? A 14 ft. fan, whose design flow as ,J,OOO CFr?1 in a ring 5 feet from grade would have an Area Approach of 220 ft 2 and a'V approach of 1137 FPM. The velocity... through the fan itself would be rOlfjhly: 250,000 or 1624 FPM .785 (14)2 As a rule of thumb, the approach velocity should not exceed 50% of the velocity through the fan. The high approach would cause additional velocity pres sure losses that were...

Monroe, R. C.

1981-01-01T23:59:59.000Z

100

How Has a Ceiling Fan Affected the Way You Heat and Cool Your Home? |  

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

Has a Ceiling Fan Affected the Way You Heat and Cool Your Home? Has a Ceiling Fan Affected the Way You Heat and Cool Your Home? How Has a Ceiling Fan Affected the Way You Heat and Cool Your Home? September 23, 2010 - 7:30am Addthis On Monday, Chris told you about his new ceiling fan and how it's changed the way he cools his home. In warm weather, ceiling fans cool people (not rooms) by producing a wind-chill effect-which is why you should turn off fans when you leave the room. A ceiling fan allows you to raise the thermostat setting about 4°F with no reduction in comfort. Ceiling fans don't just cool in the summer; you can also reverse the direction in the winter to provide an updraft and force warm air down into the room. How has a ceiling fan affected the way you heat and cool your home? Each Thursday, you have the chance to share your thoughts on a question

Note: This page contains sample records for the topic "fan central air" 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

How Has a Ceiling Fan Affected the Way You Heat and Cool Your Home? |  

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

Has a Ceiling Fan Affected the Way You Heat and Cool Your Home? Has a Ceiling Fan Affected the Way You Heat and Cool Your Home? How Has a Ceiling Fan Affected the Way You Heat and Cool Your Home? September 23, 2010 - 7:30am Addthis On Monday, Chris told you about his new ceiling fan and how it's changed the way he cools his home. In warm weather, ceiling fans cool people (not rooms) by producing a wind-chill effect-which is why you should turn off fans when you leave the room. A ceiling fan allows you to raise the thermostat setting about 4°F with no reduction in comfort. Ceiling fans don't just cool in the summer; you can also reverse the direction in the winter to provide an updraft and force warm air down into the room. How has a ceiling fan affected the way you heat and cool your home? Each Thursday, you have the chance to share your thoughts on a question

102

Predicting Residential Air Exchange Rates from Questionnaires and Meteorology: Model Evaluation in Central North Carolina  

Science Journals Connector (OSTI)

The capability of the LBL, LBLX, and SF models could help reduce the AER uncertainty in air pollution exposure models used to develop exposure metrics for health studies. ... The parameters for the low-income homes were estimated using measurements from the Ohio Weatherization Program, which included residences with household incomes below 125% of the poverty guideline (14). ...

Michael S. Breen; Miyuki Breen; Ronald W. Williams; Bradley D. Schultz

2010-11-11T23:59:59.000Z

103

Executive Summary Critique Air Products and Chemicals, Inc.  

E-Print Network [OSTI]

ME440W Executive Summary Critique Air Products and Chemicals, Inc. Low Fin Tube Heat Exchanger as compared to the bare tubes. However, contrary to Air Products' argument that the heat exchangers were to reduce turbulence of the air before it reaches the fan. The inline fan pulls the air through the test

Demirel, Melik C.

104

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

105

Fan System Assessment Tool Fact Sheet | Department of Energy  

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

Fact Sheet Fan System Assessment Tool Fact Sheet Fact sheet describing how industrial plants can improve their fan system performance using AMO's Fan System Assessment Tool (FSAT)....

106

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...

107

Experimental Evaluation of Installed Cooking Exhaust Fan Performance  

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

Experimental Evaluation of Installed Cooking Exhaust Fan Performance Experimental Evaluation of Installed Cooking Exhaust Fan Performance Title Experimental Evaluation of Installed Cooking Exhaust Fan Performance Publication Type Report LBNL Report Number LBNL-4183E Year of Publication 2010 Authors Singer, Brett C., William W. Delp, and Michael G. Apte Publisher Lawrence Berkeley National Laboratory City Berkeley Keywords airflow & pollutant transport group, cooktop, energy analysis and environmental impacts department, gas burners, indoor air quality, indoor environment department, kitchen, nitrogen dioxide, oven, pollutant emissions, range hood, residential, source control, task ventilation, technology, sustainability and impact assessment group Abstract The installed performance of cooking exhaust fans was evaluated through residential field experiments conducted on a sample of 15 devices varying in design and other characteristics. The sample included two rear downdraft systems, two under-cabinet microwave over range (MOR) units, three different installations of an under-cabinet model with grease screens across the bottom and no capture hood, two devices with grease screens covering the bottom of a large capture hood (one under-cabinet, one wall-mount chimney), four under-cabinet open hoods, and two open hoods with chimney mounts over islands. Performance assessment included measurement of airflow and sound levels across fan settings and experiments to quantify the contemporaneous capture efficiency for the exhaust generated by natural gas cooking burners. Capture efficiency is defined as the fraction of generated pollutants that are removed through the exhaust and thus not available for inhalation of household occupants. Capture efficiency (CE) was assessed for various configurations of burner use (e.g. single front, single back, combination of one front and one back, oven) and fan speed setting. Measured airflow rates were substantially lower than the levels noted in product literature for many of the units. This shortfall was observed for several units costing in excess of $1000. Capture efficiency varied widely (from <5% to roughly 100%) across devices and across conditions for some devices. As expected, higher capture efficiencies were achieved with higher fan settings and the associated higher air flow rates. In most cases, capture efficiencies were substantially higher for rear burners than for front burners. The best and most consistent performance was observed for open hoods that covered all cooktop burners and operated at higher airflow rates. The lowest capture efficiencies were measured when a front burner was used with a rear backdraft system or with lowest fan setting for above the range systems that do not cover the front burners.

108

Finding of No Significant Impact for Energy Conservation Standards for Residential Central Air Conditioners and Heat Pumps (01/01)  

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

01 01 Federal Register / Vol. 66, No. 14 / Monday, January 22, 2001 / Notices DEPARTMENT OF ENERGY Office of Energy Efficiency and Renewable Energy Finding of No Significant Impact Energy Conservation Program for Consumer Products AGENCY: Department of Energy. ACTION: Finding of No Significant Impact (FONSI) for Energy Conservation Standard for Residential Central Air Conditioners and Heat Pumps. SUMMARY: The Energy Policy and Conservation Act, as amended by the National Energy Conservation Policy Act and the National Appliance Energy Conservation Act, and the National Appliance Energy Conservation Amendments, prescribes energy conservation standards for certain major household appliances, and requires the Department of Energy (DOE) to administer an energy conservation program for these products. Based on an

109

DOE/EA-1352: Environmental Assessment for Proposed Energy Conservation Standards for Residential Central Air Conditioners and Heat Pumps (12/00)  

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

52 52 ENVIRONMENTAL ASSESSMENT FOR PROPOSED ENERGY CONSERVATION STANDARDS FOR RESIDENTIAL CENTRAL AIR CONDITIONERS AND HEAT PUMPS December 2000 U.S. Department of Energy Assistant Secretary, Energy Efficiency & Renewable Energy Office of Building Research and Standards Washington, DC 20585 EA-i ENVIRONMENTAL ASSESSMENT FOR RESIDENTIAL CENTRAL AIR CONDITIONERS AND HEAT PUMPS TABLE OF CONTENTS 1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EA-1 2.0 PURPOSE AND NEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EA-1 3.0 ALTERNATIVES INCLUDING THE PROPOSED ACTION . . . . . . . . . . . . . . . . . EA-2 3.1 No Action Alternative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EA-2 3.2 Proposed Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EA-3 3.3 Alternative Standards

110

Optimization of an atmospheric air volumetric central receiver system: Impact of solar multiple, storage capacity and control strategy  

Science Journals Connector (OSTI)

Abstract Portugal has a high potential for concentrated solar power and namely for atmospheric air volumetric central receiver systems (CRS). The solar multiple and storage capacity have a significant impact on the power plant levelized electricity cost (LEC) and their optimization and adequate control strategy can save significant capital for the investors. The optimized proposed volumetric central receiver system showed good performance and economical indicators. For Faro conditions, the best 4MWe power plant configuration was obtained for a 1.25 solar multiple and a 2h storage. Applying control strategy #1 (CS#1) the power plant LEC is 0.234/kWh with a capital investment (CAPEX) of 22.3million. The capital invested has an internal rate of return (IRR) of 9.8%, with a payback time of 14 years and a net present value (NPV) of 7.9million (considering an average annual inflation of 4%). In the case of better economical indicators, the power plant investment can have positive contours, with an NPV close to 13million (annual average inflation of 2%) and the payback shortened to 13 years.

Bruno Coelho; Szabolcs Varga; Armando Oliveira; Adlio Mendes

2014-01-01T23:59:59.000Z

111

Dating Fan Deposits with Cosmogenic Nuclides  

Science Journals Connector (OSTI)

Boulders are preferable to smaller clasts in that ... time since deposition on the fan. Large boulders are produced through rapid large-scale mass ... to the fan in debris flows or other flood events. Although in...

Susan Ivy-Ochs; Miriam Dhnforth

2013-01-01T23:59:59.000Z

112

Xudong Fan Curriculum Vitae Curriculum Vitae  

E-Print Network [OSTI]

Xudong Fan Curriculum Vitae 1 Curriculum Vitae (Last updated: October 28, 2009) Xudong (Sherman Research Assistant and Teaching Assistant, #12;Xudong Fan Curriculum Vitae 2 Physics Department and Oregon in Opto-fluidic Ring Resonators for #12;Xudong Fan Curriculum Vitae 3 Ultrasensitive Biomolecule Detection

Fan, Xudong "Sherman"

113

Portable oven air circulator  

DOE Patents [OSTI]

A portable air circulating apparatus for use in cooking ovens which is used to create air currents in the oven which transfer heat to cooking foodstuffs to promote more rapid and more uniform cooking or baking, the apparatus including a motor, fan blade and housing of metallic materials selected from a class of heat resistant materials.

Jorgensen, Jorgen A. (Bloomington, MN); Nygren, Donald W. (Minneapolis, MN)

1983-01-01T23:59:59.000Z

114

Ventilation System Effectiveness and Tested Indoor Air Quality Impacts  

SciTech Connect (OSTI)

Ventilation system effectiveness testing was conducted at two unoccupied, single-family, detached lab homes at the University of Texas - Tyler. Five ventilation system tests were conducted with various whole-building ventilation systems. Multizone fan pressurization testing characterized building and zone enclosure leakage. PFT testing showed multizone air change rates and interzonal airflow. Cumulative particle counts for six particle sizes, and formaldehyde and other Top 20 VOC concentrations were measured in multiple zones. The testing showed that single-point exhaust ventilation was inferior as a whole-house ventilation strategy. It was inferior because the source of outside air was not direct from outside, the ventilation air was not distributed, and no provision existed for air filtration. Indoor air recirculation by a central air distribution system can help improve the exhaust ventilation system by way of air mixing and filtration. In contrast, the supply and balanced ventilation systems showed that there is a significant benefit to drawing outside air from a known outside location, and filtering and distributing that air. Compared to the Exhaust systems, the CFIS and ERV systems showed better ventilation air distribution and lower concentrations of particulates, formaldehyde and other VOCs. System improvement percentages were estimated based on four System Factor Categories: Balance, Distribution, Outside Air Source, and Recirculation Filtration. Recommended System Factors could be applied to reduce ventilation fan airflow rates relative to ASHRAE Standard 62.2 to save energy and reduce moisture control risk in humid climates. HVAC energy savings were predicted to be 8-10%, or $50-$75/year.

Rudd, A.; Bergey, D.

2014-02-01T23:59:59.000Z

115

Performance analysis of supply and return fans for HVAC systems under different operating strategies of economizer dampers  

Science Journals Connector (OSTI)

HVAC systems and associated equipment consume a relatively large fraction of total building energy consumption, a significant portion of which is attributed to fan operation. The operation of economizer dampers when installed can cause high energy consumption in fans if they are not functioning in proper and optimal manner. This will mainly be due to the potential high pressure drops through those dampers and associated high total pressures that should be developed by supply and/or return fans. It is then necessary to ensure that a proper strategy to operate optimally the economizer dampers is implemented with minimum fan energy use. The paper examines several operation strategies of the economizer dampers and investigates their effects on the performance of both the supply and return fans in HVAC system. It also discusses a new operating strategy for economizer dampers that can lead to lower fan energy use. The strategies are evaluated by simulations for a typically existing HVAC system. Several factors such as the building locations, system characteristics, resistance in the duct where the dampers are installed, supply air temperature and economizer control, and minimum ventilation requirements are also considered during the evaluations. The results show that the way of the economizer dampers been controlled has a significant effect on fan performance and its energy use. The proposed strategy if properly implemented can provide fan energy saving in the range of 530%, depending mainly on the number of hours when the system operates in the free cooling mode, damper characteristics, and minimum outdoor air.

Nabil Nassif

2010-01-01T23:59:59.000Z

116

Fan deltas and braid deltas: conceptual problems  

SciTech Connect (OSTI)

The concept of fan deltas has been widely misinterpreted in the geologic literature. A true fan delta is defined as an alluvial fan deposited into a standing body of water. Such sequences are of limited areal extent and are, as expected, uncommon in the rock record. By contrast, braid deltas (herein defined), formed by progradation of a braided fluvial system into a standing body of water, are a common geomorphic feature in many modern settings, and their deposits are common in the geologic record. Braid-delta sequences are often identified as fan deltas, on the false premise that coarse-grained deposits in a deltaic setting are always part of an alluvial fan complex. The authors find that most published examples of so called fan deltas contain no direct evidence for the presence of an alluvial fan. Even in examples where an alluvial fan could be documented, the authors found that, in many cases, the alluvial fan complex was far removed from the shoreline, separated by an extensive braid plain. The authors suggest that such systems are better classified as braid deltas. They consider that it is essential to distinguish the environmental setting of true fan deltas from that of braid deltas. Misclassification will lead to incorrect interpretations of expected facies, sandstone geometry, reservoir quality, and tectonic settings. Criteria based on geometry, vertical and lateral lithofacies associations, and paleocurrent patterns should be used to correctly identify and distinguish these depositional systems.

McPherson, J.G.; Shanmugam, G.; Moiola, R.J.

1986-05-01T23:59:59.000Z

117

Fukushima-derived radionuclides in ground-level air of Central Europe: a comparison with simulated forward and backward trajectories  

Science Journals Connector (OSTI)

Results of forward and backward modeling of air mass transport from Fukushima Daiichi nuclear power plant to Slovakia were...131I, 134Cs and 137Cs) were observed in the Bratislava ground-level air in MarchApril ...

P. P. Povinec; I. Skora; M. Gera; K. Hol

2013-02-01T23:59:59.000Z

118

Improving the efficiency of centrifugal fans  

E-Print Network [OSTI]

was made of the design ch;. r- acteristics of this type of fan. In this study, several modifications to existing fans were evaluated. One modification wa concerned with the substitution of airfoil shaped blades f' or the original ones. Another medi... IV DISCUSSION OF RESULTS 0 ~ 1 Evaluation of Unmodified Fan Design 0. 2 11odification of the Cutoff Piece 4. 3 Re-evaluation of the Partial Admission Plate 4 . 4 Inlet Modification 4 . 5 Blade Shape Modifications 4. 6 Final Combined...

Wolfe, Clifford Kent

1976-01-01T23:59:59.000Z

119

Healthcare Energy: Spotlight on Fans and Pumps  

Broader source: Energy.gov [DOE]

The Building Technologies Office conducted a healthcare energy end-use monitoring project for two sites. Read details about the fan and pump energy results.

120

Building America Case Study: Evaluating Through-Wall Air Transfer...  

Energy Savers [EERE]

the performance of market-available through-wall air transfer fans with respect to Air Conditioning Contractors of America (ACCA) Manual RS and ASHRAE Standard 55-2010...

Note: This page contains sample records for the topic "fan central air" 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

Cold Air Distribution in Office Buildings: Technology Assessment for California  

E-Print Network [OSTI]

accurate control of supply air volume and temperature willof a control strategy to reset supply air temperature at thecontrol strategies and more efficient motors and fans; (b) System-powered induction boxes; and (c) Direct supply of low temperature

Bauman, F.S.

2008-01-01T23:59:59.000Z

122

Shanghai Fan Qie Trading Ltd | Open Energy Information  

Open Energy Info (EERE)

Shanghai Fan Qie Trading Ltd Place: Shanghai Municipality, China Sector: Solar Product: Solar panel wholesaler and system integrator. References: Shanghai Fan Qie Trading Ltd1...

123

Fan-fold shielded electrical leads  

DOE Patents [OSTI]

Disclosed are fan-folded electrical leads made from copper cladded Kapton, for example, with the copper cladding on one side serving as a ground plane and the copper cladding on the other side being etched to form the leads. The Kapton is fan folded with the leads located at the bottom of the fan-folds. Electrical connections are made by partially opening the folds of the fan and soldering, for example, the connections directly to the ground plane and/or the lead. The fan folded arrangement produces a number of advantages, such as electrically shielding the leads from the environment, is totally non-magnetic, and has a very low thermal conductivity, while being easy to fabricate. 3 figs.

Rohatgi, R.R.; Cowan, T.E.

1996-06-11T23:59:59.000Z

124

Laboratory Evaluation of Fan-filter Units' Aerodynamic and Energy Performance  

E-Print Network [OSTI]

Laboratory Evaluation of Fan-filter Units' Aerodynamic and Energy Performance Tengfang Xu, Lawrence The paper discusses the benefits of having a consistent testing method to characterize aerodynamic applications. Optimizing aerodynamic performance in air recirculation systems appears to be one of useful

125

Effect on energy use and greenhouse microclimate through fan motor control by variable frequency drives  

Science Journals Connector (OSTI)

A comparison was conducted between ONOFF and variable frequency drive (VFD) systems to control greenhouse ventilation fans. The study aimed to determine the effect of each system on the energy consumption and resulting greenhouse microclimate. The experiments were conducted in a commercial size greenhouse in which pepper was grown. To check the performance of the fan that was controlled by a VFD system, it was installed in a test facility and operated under several rotation speeds. At each speed of rotation, the static pressure on the fan was changed and parameters, such as electricity consumption and air flow rate, were measured. Reducing the fan speed with the VFD system resulted in reductions in the air flow rate through the greenhouse and energy consumption, the latter being much more significant. The study showed that VFD control can reduce electricity consumption compared with ONOFF operation by an amount that depends on the weather. In the present study, the average energy consumption with the VFD control system over a period of one month, was about 0.64 of that with an ONOFF system. The average greenhouse daily air temperatures and humidity ratios obtained with each control system between 0700 and 1800 were nearly equal during that month. The results obtained in the greenhouse further show that the VFD system has a greater potential than the ONOFF to reduce the range of amplitude variations in the air temperature and humidity ratio within the greenhouse.

Meir Teitel; Yun Zhao; Moti Barak; Eli Bar-lev; David Shmuel

2004-01-01T23:59:59.000Z

126

Understanding the Basics of Compressed Air Systems  

E-Print Network [OSTI]

, contaminated filters, conversion to electrically operated hoists, and the use of centrifugal fans or compressed air with pressure regulators to purge control cabinets. Finally, a review of compressor technologies with typical cfm, pressure ranges, and price...

Herron, D. J.

127

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

128

Compliance testing of Grissom Air Force Base Central Heating Plant coal-fired boilers 3, 4, and 5, Grissom Air Force Base, Indiana. Final technical report, 3-21 Feb 92  

SciTech Connect (OSTI)

A source emission testing for particulate matter and visible emissions was conducted on coal-fired boilers at the Grissom AFB Central Heating Plant during 3-21 February 1992 by the Air Quality Function of Armstrong Laboratory. The survey was conducted to determine compliance with regard to Indiana Administration Code, Title 325 Pollution Control Board, Article 5, Opacity Regulations, and Article 6, Particulate Regulations. All boilers were tested through the bypass stack. Results indicated that boilers 3 and 4 met applicable, visible, and particulate matter emissions standards. Boiler 5 exceeded the particulate standard.

Cintron-Ocasio, R.A.

1992-06-01T23:59:59.000Z

129

2014-08-19 Issuance Appliance Standards and Rulemaking Federal Advisory Committee (ASRAC)- Central Air Conditioner Regional Standards Enforcement Working Group; Notice of Open Meetings  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Registe notice of open meetings regarding the Appliance Standards and Rulemaking Federal Advisory Committee (ASRAC) - Central Air Conditioner Regional Standards Enforcement Working Group, as issued by the Deputy Assistant Secretary for Energy Efficiency on August 19, 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.

130

Fan System Assessment - End User Training | Department of Energy  

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

Fan System Assessment - End User Training Fan System Assessment - End User Training Fan System Assessment - End User Training December 18, 2013 7:30AM to 4:30PM EST Boise, Idaho Optimizing industrial fan systems can take on many forms, but any fan optimization project must meet the needs of the process. This self-paced workshop highlights the benefits of fan system optimization and examines fan system performance characteristics and practical issues concerning measurement data. The session introduces the FSAT software. This powerful analysis software helps you quantify the potential benefits of configuring fan systems for optimal performance, calculate the amount of energy use by your fan system, and estimate fan system efficiency. Learn how the software works, what data is required for FSAT, and how to interpret assessment

131

E-Print Network 3.0 - alluvial fan deposits Sample Search Results  

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

FANS: THE VENEZUELA DEBRIS FLOW AND FLASH FLOOD DISASTER Summary: and flood hazard sediment deposition in an alluvial fan on alluvial fans extremely dangerous. channel... ) in...

132

Better Unitary Equipment Air-Handlers for Efficiency and Humidity Control  

E-Print Network [OSTI]

procedure gives too little credit for advanced air handlers that reduce air conditioning load and facilitate adaptive humidity control through automatic fan speed adjustment. DC permanent magnet variable speed motors have much lower market share than less...

Sachs, H. M.

2002-01-01T23:59:59.000Z

133

Dissolved Organic Matter and Inorganic Ions in a Central Himalayan GlacierInsights into Chemical Composition and Atmospheric Sources  

Science Journals Connector (OSTI)

First, the identification of biomass burning related species in snow pit samples of Himalayas indicates the need to further address the effects of biomass burning on air quality, atmospheric circulation, and snow/glacier albedo in this region. ... Hong, S. M.; Lee, K.; Hou, S. G.; Hur, S. D.; Ren, J. W.; Burn, L. J.; Rosman, K. J. R.; Barbante, C.; Boutron, C. F.An 800-Year Record of Atmospheric As, Mo, Sn, and Sb in Central Asia in High-Altitude Ice Cores from Mt. Qomolangma (Everest), Himalayas Environ. ... Crop wastes common to the region, including rice straw, mustard stalk, jute stalk, soybean stalk, and animal residue burnings, were also characterized. ...

Jianzhong Xu; Qi Zhang; Xiangying Li; Xinlei Ge; Cunde Xiao; Jiawen Ren; Dahe Qin

2013-05-13T23:59:59.000Z

134

DOE Publishes Final Rule for Residential Furnace Fan Test Procedure...  

Office of Environmental Management (EM)

DOE Publishes Final Rule for Residential Furnace Fan Test Procedure DOE Publishes Final Rule for Residential Furnace Fan Test Procedure January 3, 2014 - 12:00am Addthis The...

135

Microsoft Word - Control_and_Fan_Improvements_in_CRAHs.doc  

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

07E 07E Demonstration of Intelligent Control and Fan Improvements in Computer Room Air Handlers Henry Coles and Steve Greenberg, Lawrence Berkeley National Laboratory Corinne Vita, Vigilent Environmental Energy Technologies Division November 2012 DISCLAIMER This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor The Regents of the University of California, nor any of their employees, makes any warranty, express or implied, or assumes any legal responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe

136

Development of Power-head based Fan Airflow Station  

E-Print Network [OSTI]

Development of Power-head Based Fan Airflow Station Gang Wang Research associate University of Nebraska, Lincoln Mingsheng Liu Professor University of Nebraska, Lincoln Abstract Fan airflow measurement is critical for heating... under partial loads. On the other hand, in most of airflow range, the power curve varies exquisitely. Wang and Liu developed the VFD airflow station to obtain the fan airflow using the power and speed based on the power curve. Both the fan...

Wang, G.; Liu, M.

2005-01-01T23:59:59.000Z

137

Cooling Tower Energy Conservation Through Hydraulic Fan Drives  

E-Print Network [OSTI]

Fan Drive Eliminates These Problems from the Drive Train. The electric motor is at ground level; close coupled to a hydraulic pump, filters and oil reservoir. Hydraulic lines bring oil flow to the lightweight hydraulic motor mounted at the fan... Tower Fan Drives Are Many: It removes the hazard of costly fan wrecks and shaft coupling breakage. It eliminates gearbox maintenance, breakdown or replacement. The electric motor is mounted with the reservoir and pump at ground level for ease...

Dickerson, J.

138

DOE Publishes Final Rule for Residential Furnace Fan Test Procedure  

Broader source: Energy.gov [DOE]

The Department of Energy (DOE) has published a final rule regarding test procedures for residential furnace fans.

139

Adjustable Speed- A Tool for Saving Energy Losses in Pumps, Fans, Fans, Blowers and Compressors  

E-Print Network [OSTI]

Petroleum and chemical plants of today are effectively cutting energy losses in their plants thermally, electrically, and mechanically in their process equipment. In rotating process equipment such as pumps, fans, compressors, and blowers, much...

Hickok, H. N.

140

The impacts of duct design on life cycle costs of central residential heating and air-conditioning systems  

Science Journals Connector (OSTI)

Abstract Many central residential HVAC systems in the U.S. operate at high external static pressures due to a combination of system restrictions. Undersized and constricted ductwork are thought to be key culprits that lead to excess external static pressures in many systems, although the magnitude of energy impacts associated with restrictive ductwork and the costs or benefits associated with addressing the problem are not well known. Therefore, this work uses annual energy simulations of two typical new single-family homes in two separate climates in the United States (Austin, TX and Chicago, IL) to predict the impacts of various external static pressure ductwork designs from independent HVAC contractors (using both flexible and rigid sheet metal ductwork materials) on annual space conditioning energy use. Results from the simulations are combined with estimates of the initial installation costs of each duct design made by each contractor to evaluate the total life cycle costs or savings of using lower pressure duct designs in the two homes over a 15-year life cycle. Lower pressure ductwork systems generally yielded life cycle cost savings, particularly in homes with PSC blowers and particularly when making comparisons with constant ductwork materials (i.e., comparing flex only or rigid only).

Brent Stephens

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "fan central air" 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

Measurable energy savings of installing variable frequency drives for cooling towers fans, compared to dual speed motors  

Science Journals Connector (OSTI)

Abstract In recent years the building management system (BMS) controllers have been used to control the operation of heating, ventilation, and air conditioning system in addition to lighting and some electrical equipment in order to save energy. In the water cooled system, the BMS controls the operation process of the cooling towers (CTs) fans of dual speed motors to maintain a constant leaving water temperature for different cooling loads and different ambient wet bulb temperature (WBT). This paper presents the effect of installing variable frequency drives (VFDs) for \\{CTs\\} fans in Kuwait during summer season on energy savings compared to dual speed control. The results have shown that with VFD mode, the reduction in water consumption was over 13% compared to the commonly used dual speed mode. More importantly, the combined power for the chillers and the \\{CTs\\} fans for the same amount of cooling produced were reduced by 5.8% in the VFD mode.

E. Al-Bassam; R. Alasseri

2013-01-01T23:59:59.000Z

142

Noise and vibration characteristics of cleanroom fan filter units  

Science Journals Connector (OSTI)

Fan filter units (FFUs) are used increasingly by the microelectronics industry to provide recirculation air in cleanrooms. Such units usually consist of one or more direct?drive blowers located in a small discharge plenum and a HEPA or ULPA filter. There may be several hundred FFUs in a large cleanroom. The noise and vibration generated by FFUs differ greatly between manufacturers. Since it is difficult to apply external noise and vibration mitigation it is important to select an FFU model with appropriate noise and vibration levels so that a cleanroom served by these units will meet the prespecified noise and vibration criteria. Unfortunately FFU manufacturers usually do not provide enough information for predicting the FFU generated sound?pressure spectrum or vibration in a cleanroom. In this paper simple noise and vibration measurement methods will be described which can be used as a basis for specifying FFU performance without special testing facilities. Measured data will be presented for a number of units. Procedures will be demonstrated to predict the performance of a cleanroom which uses FFUs as the primary source of recirculation air.

Mei Q. Wu; Colin G. Gordon

1998-01-01T23:59:59.000Z

143

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

144

DOE Publishes Request for Information for Ceiling Fans | Department...  

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

Fans Energy Conservation Standards DOE Publishes Final Rule for the Request for Exclusion of 100 Watt R20 Short Incandescent Reflector Lamps from Energy Conservation Standards...

145

Engineering analysis and economic impacts of air pollution abatement strategies for cotton gins  

E-Print Network [OSTI]

conveying rate of 1. 9 m'/kg (30 fr'/Ib). Seed cotton entering the ginning system will typically have a higher moisture content. 9. All the other fan systems will have a conveying rate of at least 1. 6 m'/kg (25 ft'/lb). 10. Since bash fans convey only... about 385 kg (850 lb) of material, the air flow was likely to be underestimated if a 1. 6 m'/kg (25 fr'/lb) conveying rate is used. Hence, the amount of air flow for trash fans was found after estimating all the rest of the process air flows...

Ramaiyer, Anantharaman

2012-06-07T23:59:59.000Z

146

96 ASHRAE Transactions: Research Current duct design methods for variable air volume  

E-Print Network [OSTI]

.Hourlyairflowrequirements, part-load fan characteristics, and duct static pressure control are incorporated into the problem airflow. Fan power is also influ- enced if static pressure at the end of the longest duct line for effective, energy-efficient, and comfortable heating, ventilat- ing, and air-conditioning (HVAC) systems

147

Appearance Learning by Adaptive Kalman Filters for FLIR Tracking Vijay Venkataraman, Guoliang Fan, Xin Fan  

E-Print Network [OSTI]

Appearance Learning by Adaptive Kalman Filters for FLIR Tracking Vijay Venkataraman, Guoliang Fan the challenging issue of target tracking and appearance learning in Forward Looking In- frared (FLIR) sequences existing methods and experiments on the AMCOM FLIR dataset validate its effectiveness. 1. Introduction

Fan, Guoliang

148

Target Tracking with Online Feature Selection in FLIR Imagery Vijay Venkataraman, Guoliang Fan and Xin Fan  

E-Print Network [OSTI]

Target Tracking with Online Feature Selection in FLIR Imagery Vijay Venkataraman, Guoliang Fan tracking algo- rithm for FLIR imagery. A dual foreground and background model is proposed for target that the proposed algorithm can accurately track poorly-visible targets in FLIR imagery even with strong ego

Fan, Guoliang

149

Energy performance of direct expansion air handling unit in office buildings  

Science Journals Connector (OSTI)

Abstract Buildings and their occupants generate a large amount of carbon emissions. In Korea, buildings contribute to about 30% of the total greenhouse gases emissions, and the proportion has been rapidly increasing to the level of the developed counties (i.e., more than 40% of the total emissions. A direct expansion air handling unit, of which a refrigerant is directly delivered to the heating and cooling, has a potential to save cooling and heating energy use, compared to water-based central air conditioning systems. The aim of this study is to compare heating and cooling energy uses of an identical office building but with different air conditioning systems, i.e. direct expansion and water-based air conditioning systems. Dynamic building energy simulations that reflect the actual use of a monitored building and its air handling unit operation have been conducted in this study. Simulation results show good agreement with the actual energy consumption obtained from the field measurements of the building. Our study quantifies the amount of cooling and heating energy uses saved by a direct expansion air handing unit and reveals reasons for this savings, i.e. higher energy efficiency of the unit and reduction in pump and fan energy demands.

Geun Young Yun; Jongdae Choi; Jeong Tai Kim

2014-01-01T23:59:59.000Z

150

Submarine-fan sedimentation, Ouachita Mountains, Arkansas and Oklahoma  

SciTech Connect (OSTI)

More than 10,000 m (32,808 ft) of interbedded sandstones and shales comprise the Upper Mississippian and Lower Pennsylvanian flysch succession (Stanley, Jackfork, Johns Valley, Atoka) in the Ouachita Mountains of Arkansas and Oklahoma. Deposited primarily by turbidity current and hemipelagic processes in bathyal and abyssal water depths, these strata formed major submarine-fan complexes that prograded in a westward direction along the axis of an elongate remnant ocean basin that was associated with the collision and suturing of the North American and African-South American plates. A longitudinal fan system is visualized as the depositional framework for these strata, which were deposited in a setting analogous to the modern Bengal fan of the Indian Ocean. Facies analysis of the Jackfork formation indicates that inner fan deposits are present in the vicinity of Little Rock, Arkansas; middle fan channel and interchannel deposits occur at DeGray Dam and Friendship, Arkansas; and outer fan depositional-lobe deposits are present in southeastern Oklahoma. Boulder-bearing units (olistostromes), many with exotic clasts, were shed laterally into the Ouachita basin. They occur throughout the flysch succession and in all fan environments (i.e., inner, middle, and outer). This relationship may serve as a useful criterion for recognizing analogous longitudinal fan systems in the rock record.

Moiola, R.J.; Shanmugam, G.

1984-09-01T23:59:59.000Z

151

Improving Fan System Performance: A Sourcebook for Industry  

Broader source: Energy.gov [DOE]

This sourcebook is designed to provide fan system users with a reference outlining opportunities to improve system performance. It is not intended to be a comprehensive technical text on improving fan systems, but rather a document that makes users aware of potential performance improvements, provides some practical guidelines, and details where the user can find more help.

152

E-Print Network 3.0 - alluvial fan nye Sample Search Results  

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

Abstract. Alluvial fans of alpine torrents are both natural deposition areas for sediment discharged... on alluvial fans depends on proper iden- tification of ... Source:...

153

Horizontal Air Flow Drying Foods at Home Safely  

E-Print Network [OSTI]

Horizontal Air Flow Drying Foods at Home Safely Choosing a Food Dehydrator Drying is one. The thermostat should go up to 160 degrees F. The unit should have a fan or blower for air circulation. Mesh trays made of sturdy plastic that can be easily washed. UL seal of approval is recommended for safety

154

Improved Air Volume Control Logic for VAV Systems  

E-Print Network [OSTI]

In a VAV (variable air volume) system, the set point of the static pressure (usually measured at 213 downstream of the main supply air duct) is maintained by modulating the fan speed or inlet guide vane position. The set point of the static pressure...

Wei, G.; Claridge, D. E.; Sakuri, Y.; M. Liu

2000-01-01T23:59:59.000Z

155

Submitting Organization Hongyou Fan Sandia National Laboratories  

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

 2007 R&D 100 Award Entry Form  Submitting Organization Hongyou Fan Sandia National Laboratories Advanced Materials Laboratory 1001 University Boulevard SE Albuquerque, NM 87106, USA 505-272-7128 (phone) 505-272-7336 (fax) hfan@sandia.gov AFFIRMATION: I affirm that all information submitted as a part of, or supplemental to, this entry is a fair and accurate represen- tation of this product. Submitter's signature_______________________________ Earl Stromberg Lockheed Martin Aeronautics Mail Zone 2893 PO Box 748 Fort Worth, TX 76101, USA 817-763-7376 (phone) 817-762-6911 (fax) Earl.W.Stromberg@lmco.com Self-Assembling Process for Fabricating Tailored Thin Films This simple, economical nanotechnology coating process enables the development of nanoparticle thin films

156

Air-Source Heat Pump Basics | Department of Energy  

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

Air-Source Heat Pump Basics Air-Source Heat Pump Basics Air-Source Heat Pump Basics August 19, 2013 - 11:03am Addthis Air-source heat pumps transfer heat between the inside of a building and the outside air. How Air-Source Heat Pumps Work This diagram of a split-system heat pump heating cycle shows refrigerant circulating through a closed loop that passes through the wall of a house. Inside the house the refrigerant winds through indoor coils, with a fan blowing across them, and outside the house is another fan and another set of coils, the outdoor coils. A compressor is between the coils on one half of the loop, and an expansion valve is between the coils on the other half. The diagram is explained in the caption. In heating mode, an air-source heat pump evaporates a refrigerant in the outdoor coil; as the liquid evaporates it pulls

157

Optimal supply air temperature with respect to energy use in a variable air volume system  

Science Journals Connector (OSTI)

In a variable air volume (VAV) system with 100% outdoor air, the cooling need in the building is satisfied with a certain air flow at a certain supply air temperature. To minimize the system energy use, an optimal supply air temperature can be set dependent on the load, specific fan power (SFP), chiller coefficient of performance, outdoor temperature and the outdoor relative humidity. The theory for an optimal supply air temperature is presented and the heating, ventilation and air-conditioning (HVAC) energy use is calculated depending on supply air temperature control strategy, average U-value of the building envelope and two outdoor climates. The analyses show that controlling the supply air temperature optimally results in a significantly lower HVAC energy use than with a constant supply air temperature. The optimal average U-value of the building envelope is in practise mostly zero.

Fredrik Engdahl; Dennis Johansson

2004-01-01T23:59:59.000Z

158

Property:Building/SPElectrtyUsePercCirculationFans | Open Energy  

Open Energy Info (EERE)

SPElectrtyUsePercCirculationFans SPElectrtyUsePercCirculationFans Jump to: navigation, search This is a property of type String. Circulation fans Pages using the property "Building/SPElectrtyUsePercCirculationFans" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 18.6715328229 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 3.84924044288 + Sweden Building 05K0004 + 13.5679722118 + Sweden Building 05K0005 + 10.115947775 + Sweden Building 05K0006 + 10.4348038368 + Sweden Building 05K0007 + 3.09034005771 + Sweden Building 05K0008 + 1.5024342653 + Sweden Building 05K0009 + 13.4365662073 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 2.75323793817 + Sweden Building 05K0012 + 15.8993705073 + Sweden Building 05K0013 + 1.11354848212 +

159

Property:Building/SPElectrtyUsePercFans | Open Energy Information  

Open Energy Info (EERE)

SPElectrtyUsePercFans SPElectrtyUsePercFans Jump to: navigation, search This is a property of type String. Fans Pages using the property "Building/SPElectrtyUsePercFans" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 7.29539104961 + Sweden Building 05K0002 + 16.7673965927 + Sweden Building 05K0003 + 27.9131959869 + Sweden Building 05K0004 + 12.2479817873 + Sweden Building 05K0005 + 29.1925346224 + Sweden Building 05K0006 + 15.8653423601 + Sweden Building 05K0007 + 12.809449974 + Sweden Building 05K0008 + 22.2979541594 + Sweden Building 05K0009 + 22.7088540206 + Sweden Building 05K0010 + 13.3738132017 + Sweden Building 05K0011 + 25.1040933765 + Sweden Building 05K0012 + 22.6542018423 + Sweden Building 05K0013 + 24.3166483485 +

160

Energy saving in agricultural buildings through fan motor control by variable frequency drives  

Science Journals Connector (OSTI)

A comparison was conducted between ONOFF and variable frequency drive (VFD) systems to control ventilation fans of greenhouses and poultry houses. The study aimed to determine the effect of each system on the energy consumption and resulting microclimate within the houses. The experiments were carried out in a commercial-size greenhouse in which pepper was grown and in commercial poultry houses. Reducing the fan speed with the VFD system resulted in reductions in the airflow rate through the houses and energy consumption, the latter being much more significant. The study showed that VFD control can reduce electricity consumption compared with ONOFF operation. In the present study, the average energy consumption with the VFD control system was about 0.64 and 0.75 of that with an ONOFF system in the greenhouse and poultry houses, respectively. The average greenhouse daily air temperatures and humidity ratios obtained with each control system between 07:00 and 18:00 were nearly equal. The results obtained in the greenhouse further showed that the VFD system has a greater potential than the ONOFF, to reduce the range of amplitude variations in the air temperature and humidity ratio within the greenhouse. The average air temperatures over day and night, in the poultry houses, with each control system were nearly equal. The relative humidity, however, was slightly lower with VFD than with ONOFF. Reductions in the range of amplitude variations of the air temperature and humidity were also observed in the poultry houses.

Meir Teitel; Asher Levi; Yun Zhao; Moti Barak; Eli Bar-lev; David Shmuel

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "fan central air" 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

Air Leakage and Air Transfer Between Garage and Living Space  

SciTech Connect (OSTI)

This research project focused on evaluation of air transfer between the garage and living space in a single-family detached home constructed by a production homebuilder in compliance with the 2009 International Residential Code and the 2009 International Energy Conservation Code. The project gathered important information about the performance of whole-building ventilation systems and garage ventilation systems as they relate to minimizing flow of contaminated air from garage to living space. A series of 25 multi-point fan pressurization tests and additional zone pressure diagnostic testing characterized the garage and house air leakage, the garage-to-house air leakage, and garage and house pressure relationships to each other and to outdoors using automated fan pressurization and pressure monitoring techniques. While the relative characteristics of this house may not represent the entire population of new construction configurations and air tightness levels (house and garage) throughout the country, the technical approach was conservative and should reasonably extend the usefulness of the results to a large spectrum of house configurations from this set of parametric tests in this one house. Based on the results of this testing, the two-step garage-to-house air leakage test protocol described above is recommended where whole-house exhaust ventilation is employed. For houses employing whole-house supply ventilation (positive pressure) or balanced ventilation (same pressure effect as the Baseline condition), adherence to the EPA Indoor airPLUS house-to-garage air sealing requirements should be sufficient to expect little to no garage-to-house air transfer.

Rudd, A.

2014-09-01T23:59:59.000Z

162

Development of a Fan-Filter Unit Test Standard, LaboratoryValidations, and its Applications across Industries  

SciTech Connect (OSTI)

Lawrence Berkeley National Laboratory (LBNL) is now finalizing the Phase 2 Research and Demonstration Project on characterizing 2-foot x 4-foot (61-cm x 122-cm) fan-filter units in the market using the first-ever standard laboratory test method developed at LBNL.[1][2][3] Fan-filter units deliver re-circulated air and provide particle filtration control for clean environments. Much of the energy in cleanrooms (and minienvironments) is consumed by 2-foot x 4-foot (61-cm x 122-cm) or 4-foot x 4-foot (122-cm x 122-cm) fan-filter units that are typically located in the ceiling (25-100% coverage) of cleanroom controlled environments. Thanks to funding support by the California Energy Commission's Industrial Program of the Public Interest Energy Research (PIER) Program, and significant participation from manufacturers and users of fan-filter units from around the world, LBNL has developed and performed a series of standard laboratory tests and reporting on a variety of 2-foot x 4-foot (61-cm x 122-cm) fan-filter units (FFUs). Standard laboratory testing reports have been completed and reported back to anonymous individual participants in this project. To date, such reports on standard testing of FFU performance have provided rigorous and useful data for suppliers and end users to better understand, and more importantly, to quantitatively characterize performance of FFU products under a variety of operating conditions.[1] In the course of the project, the standard laboratory method previously developed at LBNL has been under continuous evaluation and update.[2][3] Based upon the updated standard, it becomes feasible for users and suppliers to characterize and evaluate energy performance of FFUs in a consistent way.

Xu, Tengfang

2006-10-20T23:59:59.000Z

163

Small-scale event sport tourism: fans as tourists  

Science Journals Connector (OSTI)

College sports events have the potential to increase city revenue and community spirit, while increasing traveler's awareness of the local community. This two-part study focuses on the tourism-related behaviors of fans who follow the University of Florida (USA) football team (the Gators). In the fall of 1999, 181 Gator fans were surveyed. Descriptive statistics illustrated that Sport Excursionists and Sport Tourists spent money on food and shopping while attending games, but their main motivation was to see the game. In the fall of 2000, 20 Gator fans took part in follow-up face-to-face interviews. Three themes emerged from the data about their travel-related behaviors when attending football games: (a) being a fan; (b) pilgrimages to the mecca of Gator football; and (c) on the road with the team. Further analysis of the results revealed that Gator fans are more likely to engage in traditional tourist behaviors while attending away games. Therefore, it is hypothesized that the tourism benefits for small communities may lie in leveraging the events to the visiting team's fans.

Heather J Gibson; Cynthia Willming; Andrew Holdnak

2003-01-01T23:59:59.000Z

164

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

165

The relationship between filter pressure drop, indoor air quality, and energy consumption in rooftop HVAC units  

Science Journals Connector (OSTI)

Abstract HVAC filters are commonly used to decrease exposure to particulate matter, yet little is known about the energy impacts and air quality consequences of high efficiency filters installed in commercial buildings. To explore these effects, system airflow, filter and coil pressure drop, fan pressure rise, and power draw were measured, and cooling capacity and compressor power were modeled for at least four filter pressure drops in 15 rooftop units equipped with and without fan speed control. Energy implications and clean-air-delivery-rate were estimated for a large dataset of filters divided into four efficiency (MERV) categories. Field measurements conducted on units without fan speed control showed that increased filter pressure drop decreased flow, cooling capacity, and power. For a unit with fan speed control, the same increase in pressure drop resulted in the same magnitude change of fan power but in the opposite direction, and other parameters were unchanged. Replacing MERV 8 with MERV 13/14 resulted in higher energy consumption (24%) during cooling mode for both unit types, energy savings during fan-only mode (813%) in units without fan speed control, and increased energy consumption in fan-only mode (1118%) in the unit with fan speed control. Energy consumption increases were offset by improvement in clean-air-delivery-rate, especially for PM2.5 (2.93.8 times increase going from MERV 8 to MERV 13/14), with larger benefits achieved for the unit with fan speed control. A comprehensive understanding of the impact of filtration is essential to selecting the appropriate efficiency of filters that ensures low-energy use and a healthy indoor environment.

Marwa Zaatari; Atila Novoselac; Jeffrey Siegel

2014-01-01T23:59:59.000Z

166

Conservation Division regiulations for appliance-efficiency standards relating to refrigerators and freezers, room air conditioners, central air conditioners, gas space heaters, water heaters, plumbing fittings, gas clothes dryers, and gas cooking appliances  

SciTech Connect (OSTI)

The text of the appliance efficiency standards for certain types of new appliances sold in California is presented. Specifications and test methods to identify complying refrigerators, freezers, air conditioners, gas space heaters, water heaters, plumbing fittings, gas clothes dryers, and gas cooking appliances are covered.

Not Available

1981-12-16T23:59:59.000Z

167

Demonstrating Online Monitoring of Air Pollutant Photodegradation in a 3D Printed Gas-Phase Photocatalysis Reactor  

Science Journals Connector (OSTI)

We present a demonstration of online monitoring of gas-phase photocatalytic reactions. A cotton cloth impregnated with commercial titanium dioxide nanoparticles is used as a photocatalytic filter to clean air contaminated with a model pollutant. A fan ...

Bozhidar I. Stefanov; Delphine Lebrun; Andreas Mattsson; Claes G. Granqvist; Lars sterlund

2014-11-21T23:59:59.000Z

168

Room Air Conditioners | Department of Energy  

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

Room Air Conditioners Room Air Conditioners Room Air Conditioners July 1, 2012 - 5:35pm Addthis A window air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/kschulze. A window air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/kschulze. What does this mean for me? Room air conditioners are less expensive and disruptive to install than central air conditioning systems. Room air conditioners can be a cost-effective alternative to central air conditioning systems. How does it work? Room air conditioners work by cooling one part of your home. Room or window air conditioners cool rooms rather than the entire home or business. If they provide cooling only where they're needed, room air conditioners are less expensive to operate than central units, even though

169

Air Distribution Effectiveness for Residential Mechanical Ventilation: Simulation and Comparison of Normalized Exposures  

SciTech Connect (OSTI)

The purpose of ventilation is to dilute indoor contaminants that an occupant is exposed to. Even when providing the same nominal rate of outdoor air, different ventilation systems may distribute air in different ways, affecting occupants' exposure to household contaminants. Exposure ultimately depends on the home being considered, on source disposition and strength, on occupants' behavior, on the ventilation strategy, and on operation of forced air heating and cooling systems. In any multi-zone environment dilution rates and source strengths may be different in every zone and change in time, resulting in exposure being tied to occupancy patterns.This paper will report on simulations that compare ventilation systems by assessing their impact on exposure by examining common house geometries, contaminant generation profiles, and occupancy scenarios. These simulations take into account the unsteady, occupancy-tied aspect of ventilation such as bathroom and kitchen exhaust fans. As most US homes have central HVAC systems, the simulation results will be used to make appropriate recommendations and adjustments for distribution and mixing to residential ventilation standards such as ASHRAE Standard 62.2.This paper will report on work being done to model multizone airflow systems that are unsteady and elaborate the concept of distribution matrix. It will examine several metrics for evaluating the effect of air distribution on exposure to pollutants, based on previous work by Sherman et al. (2006).

Petithuguenin, T.D.P.; Sherman, M.H.

2009-05-01T23:59:59.000Z

170

Air-Source Heat Pump Basics | Department of Energy  

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

Source Heat Pump Basics Source Heat Pump Basics Air-Source Heat Pump Basics August 19, 2013 - 11:03am Addthis Air-source heat pumps transfer heat between the inside of a building and the outside air. How Air-Source Heat Pumps Work This diagram of a split-system heat pump heating cycle shows refrigerant circulating through a closed loop that passes through the wall of a house. Inside the house the refrigerant winds through indoor coils, with a fan blowing across them, and outside the house is another fan and another set of coils, the outdoor coils. A compressor is between the coils on one half of the loop, and an expansion valve is between the coils on the other half. The diagram is explained in the caption. In heating mode, an air-source heat pump evaporates a refrigerant in the outdoor coil; as the liquid evaporates it pulls

171

Photo of the Week: Fan-tastic | Department of Energy  

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

Fan-tastic Fan-tastic Photo of the Week: Fan-tastic August 17, 2012 - 10:30am Addthis In Jonesboro, Arkansas, a Nordex USA employee stands between utility-scale components that will eventually make up a completed wind turbine. Under the Recovery Act, Nordex USA received a tax credit to assist in the creation of the Jonesboro manufacturing facility, which opened in October 2010. | Photo courtesy of Nordex USA. In Jonesboro, Arkansas, a Nordex USA employee stands between utility-scale components that will eventually make up a completed wind turbine. Under the Recovery Act, Nordex USA received a tax credit to assist in the creation of the Jonesboro manufacturing facility, which opened in October 2010. | Photo courtesy of Nordex USA. Sarah Gerrity Sarah Gerrity Multimedia Editor, Office of Public Affairs

172

Performance and Stability Analysis of a Shrouded-Fan UAV  

E-Print Network [OSTI]

This paper deals with the estimation of the performance and stability for a shrouded-fan unmanned rotorcraft whose mission profile also prescribes the flight in ground effect. The not so simple estimation of the aerodynamic coefficients and of the thrust in the various situations makes the performance calculation and the stability analysis difficult tasks. This is due to the strong interaction between the fan flow and shroud that causes quite different flow structures about the airframe depending on flight conditions. A further difficulty is related to the ground effect which produces substantial modifications in the rotor thrust and aerodynamic coefficients. To evaluate performance and stability, two models have been developed. One determines the aerodynamic coefficients of the shroud, whereas the other one calculates thrust and moment of the rotors system. Both models take into account the mutual interference between fan flow and fuselage and ground effect. Performance and stability are then discussed with ...

de Divitiis, Nicola

2009-01-01T23:59:59.000Z

173

Geomorphology and morphometric characteristics of alluvial fans, Guadalupe Mountains National Park and adjacent areas, west Texas and New Mexico  

E-Print Network [OSTI]

............................................................ 29 14 Alluvial fans along the Guadalupe Mountains in Big Dog Canyon........ 31 15 Alluvial fans along the Brokeoff Mountains in Big Dog Canyon........... 35 16 View of alluvial fans from their drainage basins.................................. 75 27 Salt Basin-Brokeoff Mountains alluvial fan group ................................. 76 28 Big Dog Canyon-Brokeoff Mountains alluvial fan group....................... 77 29 Big Dog Canyon-Guadalupe Mountains alluvial fan group...

Given, Jeffrey Lyle

2004-09-30T23:59:59.000Z

174

Amateur experts: International fan labor in Swedish independent music  

E-Print Network [OSTI]

of Swedish music than we have, which is kind of cool. Well-placed fans can even break bands. Nick Levine, explains how he and his partner in the Londons Swedish nightclub Tack!Tack!Tack! (which had a strong MySpace presence of its own) influenced... work by positioning themselves as enthusiasts too far outside the scene to merit economic reward. These fans sometimes took umbrage to implications that they are involved in the scene, doing work, or should be paid: I dont want to say Im involved...

Baym, Nancy K.; Burnett, Robert

2009-09-01T23:59:59.000Z

175

University of Colorado Indoor Air Quality Report  

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

Image Courtesy of Ohio Image Courtesy of Ohio State University INDOOR AIR QUALITY Design Goals Design Goals Design Goals Design Goals Integrate technologically and economically innovative, low-energy strategies Minimize occupant distraction User-friendly controls Minimize pollutant sources Bio Bio Bio Bio- - - -S S S S ( ( ( (h h h h) ) ) ) ip ip ip ip indoor air quality features indoor air quality features indoor air quality features indoor air quality features Mechanical Systems Energy Recovery Ventilator Exhaust Fans Heating And Cooling Systems Passive Ventilation Low VOC materials Each of these features is described in more detail below. Mechanical Systems Energy Recovery Ventilator Knowing that our home has a tight envelope, due to our Bio-SIP construction, we needed to use mechanical ventilation to ensure suitable indoor air

176

Experimental investigation on the energy-saving diffuser of a main fan  

Science Journals Connector (OSTI)

The main fan diffuser in a coal mine is an energy-recycling equipment with a dynamic energy loss for the main fan. Engineering practices ... are irrational. To solve the problem, an energy-saving diffuser is desi...

Shi-qiang Chen; Hai-qiao Wang

2012-03-01T23:59:59.000Z

177

2014-10-27 Issuance: Test Procedure for Ceiling Fan Light Kits...  

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

27 Issuance: Test Procedure for Ceiling Fan Light Kits; Notice of Proposed Rulemaking 2014-10-27 Issuance: Test Procedure for Ceiling Fan Light Kits; Notice of Proposed Rulemaking...

178

A Method for Evaluating the Application of Variable Frequency Drives with Coal Mine Ventilation Fans.  

E-Print Network [OSTI]

??The adjustable-pitch setting on an axial-flow fan is the most common method of controlling airflow for primary coal mine ventilation. With this method, the fan (more)

Murphy, Tyson M.

2006-01-01T23:59:59.000Z

179

Improve the Energy Efficiency of Fan Systems, Software Tools for Industry, Industrial Technologies Program (ITP) (Fact Sheet)  

SciTech Connect (OSTI)

This fact sheet describes how the Industrial Technologies Program Fan System Assessment Tool (FSAT) can help quantify energy consumption and savings opportunities in industrial fan systems.

Not Available

2008-12-01T23:59:59.000Z

180

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

Note: This page contains sample records for the topic "fan central air" 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

DOE Publishes Notice of Proposed Rulemaking for Residential Furnace Fans Energy Conservation Standards  

Broader source: Energy.gov [DOE]

The Department of Energy has published a notice of proposed rulemaking regarding energy conservation standards for residential furnace fans.

182

Fan Aerodynamic Performance Guarantees: Do Your Policies, Procedures and Penalties Provide Adequate Certainty?  

E-Print Network [OSTI]

With few exceptions, fan vendors do not provide a written guarantee regarding aerodynamic performance. Some fan vendors even go so far as to state in their terms and conditions of sale that fan performance is not guaranteed unless it is specifically...

Kaufman, S. G.; Martin, V.; Falk, M. A.

2004-01-01T23:59:59.000Z

183

Early to middle Miocene foraminifera from the deep-sea Congo Fan, offshore Angola  

E-Print Network [OSTI]

Early to middle Miocene foraminifera from the deep-sea Congo Fan, offshore Angola Severyn Kender,1 section of an exploration well penetrating the distal part of the Congo Fan (~2000m water depth) yielded Miocene Monterey Carbon Isotope Excursion. INTRODUCTION The Congo Fan has been the subject

Kaminski, Michael A.

184

INTRODUCTION The Congo Fan is the distal component of the sec-  

E-Print Network [OSTI]

INTRODUCTION The Congo Fan is the distal component of the sec- ond largest delta system the Congo River and its associated tributaries (see Goudie, 2005). The Congo Fan is a terrigenous wedge foraminiferal microfauna from the 107 Oligocene Deep-Water Agglutinated Foraminifera from the Congo Fan

Kaminski, Michael A.

185

Model-Based Commissioning for Filters in Room Air Conditioners  

E-Print Network [OSTI]

This paper proposes a model that can estimate filter resistance. Two sorts of value are used as inputs to estimate filter resistance. One is the power consumed by the fan in the indoor unit and the other is the thermal performance. For the room air...

Wang, F.; Yoshida, H.; Kitagawa, H.; Matsumoto, K.; Goto, K.

2004-01-01T23:59:59.000Z

186

Submarine fan lobe models: Implications for reservoir properties  

SciTech Connect (OSTI)

A multitude of submarine fan lobe models, advocating widely different reservoir properties, has been introduced into the sedimentologic literature. Four of these models are compared to show their differences in reservoir properties. Braided suprafan lobes are characterized by stacked sand bodies with good lateral and vertical communication, and they constitute excellent reservoir facies. The unchanneled depositional lobes, composed of sheetlike sand bodies with good lateral and moderate vertical communication, exhibit properties of good reservoir facies. Fanlobes, which refer to meandering channels and associated levee facies of large mud-rich submarine fans such as the Mississippi Fan in the Gulf of Mexico, are characterized by offset stacked sand bodies with poor lateral and vertical communication. These lenticular sands have the potential to be moderately good reservoir facies. Ponded lobes, which represent mud-rich slump facies of slope environments, comprise poor reservoir facies because of poor sand content and poor sand-body connectivity caused by chaotic bedding. Furthermore, the presence of slumped mud layers in ponded lobes is expected to hinder fluid flow. Because different lobe models vary significantly from one another in terms of reservoir properties, caution must be exercised to apply the proper lobe model to ancient fan sequences in hydrocarbon exploration and production.

Shanmugam, G.; Moiola, R.J. (Mobil Research and Development Corp., Dallas, TX (USA))

1990-09-01T23:59:59.000Z

187

Heuristics for Balancing Turbine Fans Samir V. Amiouny  

E-Print Network [OSTI]

April 20, 1997 Abstract We develop heuristics for a problem that models the static balancing of turbine Reiger, 1986. In some cases, such as in the constructionof hydraulic, steam or gas turbines, fan blades to counteract the residual un- balance. For gas and steam turbines, this is necessary not only when the engine

Bartholdi III, John J.

188

Updating for Ash Cooler Fluidized Air System of a 410 t/h CFB Boiler  

Science Journals Connector (OSTI)

The paper presents an updating scheme for ash cooler fluidized air system of a 410 t/h CFB boiler. The ash cooler fluidized air, which is originally designed, is provided by the independent configuration of two forced fans. By analyzing and studying ...

Gao Jian-qiang; Chen Hong-wei; Zhang Wei

2009-10-01T23:59:59.000Z

189

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

190

AIR-TIGHTNESS OF U.S. DWELLINGS: 0 LBL-35700 AIR-TIGHTNESS OF U.S. DWELLINGS*  

E-Print Network [OSTI]

.S. dwellings over the past decade; LBL has collect- ed the available data into its air leakage database. This report documents what is in that database and then uses that data to determine relevant leakage charac on to summarize the current measurements, it may be instructive to briefly review the history of fan

191

Alluvial-fan deposits of Eldorado and Piute Valleys Alluvial-fan deposits are mapped as allostratigraphic units  

E-Print Network [OSTI]

that may be subject to intermittent flooding from active channels. Young alluvial-fan depositsMFan-piedmont and interfluvial wash terrace remnants; pebble-cobble to boulder gravel; small pebble sand where dominated by grus-cobble to boulder gravel. Deposits are poorly sorted; generally matrix supported; poorly to moderately stratified

Tingley, Joseph V.

192

Air handling unit supply air temperature optimal control during economizer cycles  

Science Journals Connector (OSTI)

Most air handling units (AHUs) in commercial buildings have an air economizer cycle for free cooling under certain outside air conditions. During the economizer cycle, the outside air and return air dampers are modulated to seek supply air temperature at its setpoint. The supply air temperature is typically set at 55F (13C) to control humidity in the space. However, dehumidification is not necessary when the outside air is dry. Meanwhile, the space may have less cooling load due to envelope heat loss and/or occupant schedule changes. These facts provide an opportunity to use higher supply air temperature to reduce or eliminate mechanical cooling and terminal box reheat. On the contrary, a higher supply air temperature requires increased air flow as well as fan power. Therefore, an optimization question is formed, through which an optimal supply air temperature is identified to minimize total energy consumption. In this paper a steady-state energy consumption model is established for AHU systems under the economizer, and then an analytical optimization method is used to seek an optimal supply air temperature setpoint to minimize the energy cost. This paper presents AHU system energy modeling, supply air temperature optimization, simulated energy savings, and control sequence development.

Gang Wang; Li Song

2012-01-01T23:59:59.000Z

193

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

194

Central Hudson Gas and Electric (Gas) - Commercial Energy Efficiency  

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

Commercial Energy Commercial Energy Efficiency Program Central Hudson Gas and Electric (Gas) - Commercial Energy Efficiency Program < Back Eligibility Commercial Installer/Contractor Institutional Local Government Nonprofit Schools Savings Category Heating & Cooling Commercial Heating & Cooling Heating Construction Appliances & Electronics Water Heating Maximum Rebate See Program Info State New York Program Type Utility Rebate Program Rebate Amount Furnace: $500 Furnace with ECM Fan: $700 - $900 Water Boiler: $800 - $1,200 Steam Boiler: $800 Boiler Reset Control: $100 Indirect Water Heater: $300 Programmable Thermostats: $25 Provider Central Hudson Gas and Electric The Business Energy SavingsCentral program is for non-residential gas customers of Central Hudson. This includes businesses, local governments,

195

Implementation of the Laboratory Air Handling Unit Systems (LAHU)  

E-Print Network [OSTI]

Implementation of the Laboratory Air Handling Unit Systems (LAHU) Y. Cui Graduate Student Energy Systems Laboratory University of Nebraska-Lincoln Omaha, NE, USA M. Liu, Ph.D., P.E. Associate Professor Energy Systems Laboratory...-around coils [18, 19], the variable air volume (VAV) fume hoods [8-16] and the usage-based control devices (UBC) [17]. These measures have effectively reduced the cooling energy, preheat energy and fan power consumption, and sometime, improved indoor...

Cui, Y.; Liu, M.; Conger, K.

2003-01-01T23:59:59.000Z

196

Technology Solutions for New and Existing Homes: Air Leakage and Air Transfer Between Garage and Living Space  

Broader source: Energy.gov [DOE]

In this project, Building Science Corporation worked with production home builder K. Hovnanian to conduct testing at a single-family home in Waldorf, Maryland, constructed in accordance with the 2009 International Residential Code. The team used automated fan pressurization and pressure monitoring techniques to conduct a series of 25 tests to measure the garage and house air leakage and pressure relationships and the garage-to-house air leakage.

197

Building America Technology Solutions for New and Existing Homes: Air Leakage and Air Transfer Between Garage and Living Space  

Broader source: Energy.gov [DOE]

In this project, Building Science Corporation worked with production home builder K. Hovnanian to conduct testing at a single-family home in Waldorf, Maryland, constructed in accordance with the 2009 International Residential Code. The team used automated fan pressurization and pressure monitoring techniques to conduct a series of 25 tests to measure the garage and house air leakage and pressure relationships and the garage-to-house air leakage.

198

ISSUANCE: 2014-12-03 Energy Conservation Standards for Commercial and Industrial Fans and Blowers: Availability of Provisional Analysis Tools  

Broader source: Energy.gov [DOE]

Energy Conservation Standards for Commercial and Industrial Fans and Blowers: Availability of Provisional Analysis Tools

199

air conditioner | OpenEI  

Open Energy Info (EERE)

air conditioner air conditioner Dataset Summary Description View 2010 energy efficiency data from AeroSys Inc, Coaire, Cold Point, First Operations, LG Electronics, Nordyne, and Quietside manufacturers. Data includes cooling capacity, cooling performance, heating capacity, and heating performance. Spreadsheet was created by combining the tables in pdf files that are included in the zip file. Source Energy Applicance Data - United States Federal Trade Commission, www.ftc.gov Date Released Unknown Date Updated Unknown Keywords air conditioner central air conditioner efficiency efficient energy heat pump Data application/vnd.ms-excel icon 2010_CentralAC_All.xls (xls, 82.4 KiB) application/zip icon 2010CentralAirConditioner.zip (zip, 398.2 KiB) Quality Metrics Level of Review Some Review

200

LAB 3 Cleanroom Fan and Filters Analysis for the Supports  

SciTech Connect (OSTI)

A 1400 lb blower fan and a 2700 lb filter box are to be supported at Lab 3. The support structure is a framework that suspends from the building wall to the cleanroom and to a washroom. The framework is made of welded 4-inch x 8-inch x 1/4-inch rectangular A36 steel tube. Welds are to be standard prequalified welds as by AISC. The main support frame is approximately 7-feet off the floor and welded onto the top of 10 columns. A deflection and stress study was performed on the planned structure. A scaled plan view is given in drawing 3823.113-MD-358764. The heaviest loaded beams were labeled with a letter designation and were studied for beam deflections and stresses. The 4-inch x 8-inch rectangular tube was also used for the substructure for the fan and filter mounts and to support a temporary floor grating during maintenance.

Cease, H.; /Fermilab

1998-05-08T23:59:59.000Z

Note: This page contains sample records for the topic "fan central air" 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

Polycyclic aromatic hydrocarbon distributions in Mississippi Fan sediments  

E-Print Network [OSTI]

. Sandberg, B. A. , University of Colorado Chairman of Advisory Committee: Dr. James M. Brooks Polycyclic aromatic hydrocarbon (PAH) distributions in Upper Pleistocene sediments of the Mississippi Fan and two intraslope basins in the Gulf of Mexico... chemistries is separate phase migration driven by hydrodynamic flow upward along fault planes. The same variables at intraslope basin sites are highly altered, possibly due to extensive gravity slump faulting. High- performance liquid chromatography...

Sandberg, William Allan

2012-06-07T23:59:59.000Z

202

Evaluation of Retrofit Variable-Speed Furnace Fan Motors  

SciTech Connect (OSTI)

In conjunction with the New York State Energy Research and Development Authority (NYSERDA) and Proctor Engineering Group, Ltd. (PEG), the Consortium for Advanced Residential Buildings (CARB) has evaluated the Concept 3 (tm) replacement motors for residential furnaces. These brushless, permanent magnet (BPM) motors can use much less electricity than their PSC (permanent split capacitor) predecessors. This evaluation focuses on existing homes in the heating-dominated climate of upstate New York with the goals of characterizing field performance and cost-effectiveness. The results of this study are intended to be useful to home performance contractors, HVAC contractors, and home efficiency program stakeholders. The project includes eight homes in and near Syracuse, NY. Tests and monitoring was performed both before and after fan motors were replaced. Average fan power reductions were approximately 126 Watts during heating and 220 Watts during cooling operation. Over the course of entire heating and cooling seasons, these translated into average electric energy savings of 163 kWh. Average cost savings were $20 per year. Homes where the fan was used outside of heating and cooling mode saved an additional $42 per year on average. Results indicate that BPM replacement motors will be most cost-effective in HVAC systems with longer run times and relatively low duct static pressures. More dramatic savings are possible if occupants use the fan-only setting when there is no thermal load. There are millions of cold-climate, U.S. homes that meet these criteria, but the savings in most homes tested in this study were modest.

Aldrich, R.; Williamson, J.

2014-01-01T23:59:59.000Z

203

Aerodynamic Thrust Modelling in Wave Tank Tests of Offshore Floating Wind Turbines Using a Ducted Fan  

Science Journals Connector (OSTI)

Wave tank testing of scaled models is standard practice during the development of floating wind turbine platforms for the validation of the dynamics of conceptual designs. Reliable recreation of the dynamics of a full scale floating wind turbine by a scaled model in a basin requires the precise scaling of the masses and inertias and also the relevant forces and its frequencies acting on the system. The scaling of floating wind turbines based on the Froude number is customary for basin experiments. This method preserves the hydrodynamic similitude, but the resulting Reynolds number is much lower than in full scale. The aerodynamic loads on the rotor are therefore out of scale. Several approaches have been taken to deal with this issue, like using a tuned drag disk or redesigning the scaled rotor. This paper describes the implementation of an alternative method based on the use of a ducted fan located at the model tower top in the place of the rotor. The fan can introduce a variable force that represents the total wind thrust by the rotor. A system controls this force by varying the rpm, and a computer simulation of the full scale rotor provides the desired thrust to be introduced by the fan. This simulation considers the wind turbine control, gusts, turbulent wind, etc. The simulation is performed in synchronicity with the test and it is fed in real time by the displacements and velocities of the platform captured by the acquisition system. Thus, the simulation considers the displacements of the rotor within the wind field and the calculated thrust models the effect of the aerodynamic damping. The system is not able currently to match the effect of gyroscopic momentum. The method has been applied during a test campaign of a semisubmersible platform with full catenary mooring lines for a 6MW wind turbine in scale 1/40 at Ecole Centrale de Nantes. Several tests including pitch free decay under constant wind and combined wave and wind cases have been performed. Data from the experiments are compared with aero-servo-hydro-elastic computations with good agreement showing the validity of the method for the representation of the scaled aerodynamics. The new method for the aerodynamic thrust scaling in basin tests is very promising considering its performance, versatility and lower cost in comparison with other methods.

Jos Azcona; Faisal Bouchotrouch; Marta Gonzlez; Joseba Garcianda; Xabier Munduate; Felix Kelberlau; Tor A Nygaard

2014-01-01T23:59:59.000Z

204

Airvest's Breath of Fresh Air  

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

7 7 The Cutting Edge: Airvest's Breath of Fresh Air Spray booths are a common sight in the industrial sector. Designed to remove pollutants during industrial processes such as spray painting or welding, a booth is a rectangular enclosure open on one side where the worker stands, and equipped on the opposite wall with a fan and filter arrangement to suck away the dirty air. The full-size mannequin in these photographs simulates a worker in a spray booth facing the exhaust filters. In experiments designed by LBL researcher Ashok Gadgil, smoke was released in front of the mannequin to simulate the spraying of paint in the booth. The photo on the left shows the spray booth during standard operation. The smoke-representing a pollutant-is entrained in the eddy that forms in

205

Types of submarine fan lobes: Models and implications  

SciTech Connect (OSTI)

Different lobe models imply significantly different reservoir geometries; thus, one must apply the proper lobe model to ancient fan sequences. Braided suprafan lobes are characterized by stacked channel sand bodies with good lateral and vertical communication, and they constitute excellent reservoir facies. Depositional lobes, composed of sheet-like sand bodies with good lateral and moderate vertical communication, exhibit properties of good reservoir facies. Fanlobes, which refer to meandering channels and associated levee facies of large mud-rich submarine fans such as the Mississippi fan, are characterized by offset stacked sand bodies with poor lateral and vertical communication .These lenticular sands have the potential to be moderately good reservoir facies. Ponded lobes, which represent mud-rich slump facies of slope environments, comprise poor reservoir facies because of low sand content and poor sand-body connectivity. Furthermore, the presence of contorted mud layers in ponded lobes is expected to hinder fluid flow. External mounded reflections in seismic profiles often are interpreted as lobes; however, there are no definite seismic criteria to delineate mud-rich lobes from sand-rich lobes.

Shanmugam, G.; Moiola, R.J. (Mobil Research and Development Corp., Dallas, TX (United States))

1991-01-01T23:59:59.000Z

206

Thermal comfort and cold air distribution  

SciTech Connect (OSTI)

Cold air distribution systems supply air at temperatures between 38 F and 51 F. Cold air distribution systems are increasingly attractive when used in conjunction with ice storage systems to shave peak load by shifting the demand to off-peak hours. They also require less operating and capital costs because they use smaller fans, ducts, piping, and pumps. However, an important issue in design and application of cold air systems is the effect on occupant comfort. There are several techniques and methodologies that practitioners use for evaluation of conventional air distribution systems. Among these is the Air Diffusion Performance Index (ADPI). It is widely used in the US and is referenced in the 1993 ASHRAE Handbook--Fundamentals. However, this technique is based on empirical correlations obtained from tests conducted with conventional systems and it cannot be guaranteed that they will be equally applicable to cold air systems. This study was undertaken, therefore, to extend the existing techniques (especially the Air Diffusion Performance Index) to applications where cold air distribution systems are utilized. This work presents a critical review of the evolution of the ADPI technique and offers several recommendations for developing a firm foundation for future room air distribution research.

Hassani, V. [National Renewable Energy Lab., Golden, CO (United States); Miller, P.L. [Miller (Paul), Arvada, CO (United States)

1998-10-01T23:59:59.000Z

207

Compressed Air  

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

BPA Utility Reimbursement Programs for Compressed Air Projects Customer Proposal Template Measurement & Verification Plan for Compressed Air CA 2006-15 A template for utilities to...

208

Experimental Evaluation of Installed Cooking Exhaust Fan Performance  

E-Print Network [OSTI]

air quality, kitchen, oven, nitrogen dioxide, pollutant emissions, range hood, residential, source control,

Singer, Brett C.

2011-01-01T23:59:59.000Z

209

Central Air Conditioners","Heat Pumps","Individual Air Conditioners...  

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

"Food Service ...",349,324,66,"Q",71,"Q","Q",218,"Q","Q" "Health Care ...",127,127,"Q",29,15,2,9,77,"Q","Q" " Inpatient...

210

HVAC Radial Air Bearing Heat Exchangers Research Project | Department of  

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

Radial Air Bearing Heat Exchangers Radial Air Bearing Heat Exchangers Research Project HVAC Radial Air Bearing Heat Exchangers Research Project The U.S. Department of Energy is currently conducting research into heating, ventilation, and air conditioning (HVAC) radial air bearing heat exchangers. Rotary air bearing heat exchanger technology simultaneously solves four long standing problems of conventional "fan-plus-finned-heat-sink" heat exchangers. Project Description This project seeks to design, fabricate, and test successive generations of prototype radial air bearing heat exchanger devices based on lessons learned and further insights into device optimization, computational fluid dynamic studies for parametric optimization and determination of scaling laws, and laboratory measurement of flow field and heat transfer

211

Equipartition of two measures by a 4-fan Imre B ar any  

E-Print Network [OSTI]

, there is a point and four hal ines emanating form it such that each of the four sectors have measure 1=4 in both are used here without much change. A point x in the plane and four hal ines, ` 1 ; ` 2 ; ` 3 ; ` 4 of S 2 . A 4-fan in R 2 is lifted to a 4-fan in S 2 in a natural way: a spherical 4-fan is a point x 2

Bárány, Imre

212

E-Print Network 3.0 - alluvial fan sedimentation Sample Search...  

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

alluvial fans commonly occur with little to no warning, and have high velocities and sediment... with little warning, travel at high speeds, and carry massive amounts of sediment...

213

E-Print Network 3.0 - alluvial fan surfaces Sample Search Results  

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

Park: Climatic and intrinsic controls on Holocene geomorphic processes Summary: similar burn surfaces in numerous alluvial-fan stratigraphic sections (Figs. 3b and 3c). Rarely......

214

Genetic stratigraphy of a part of the Miocene Congo Fan, West Africa  

Science Journals Connector (OSTI)

Abstract The stratigraphic framework and reservoir distribution are essential factors controlling the accumulation of petroleum in the Miocene Congo Fan. Analysis of cores, well logs, and seismic data suggest that the submarine fan autocycle (genetic cycle) is presented by sequence of slump, debrite, densite currents, and turbidites, whereas allocycles (long-term cycles) may be composed of several autocycles (short-term cycles) that, appear as a stacking pattern or retrogradational fan. Scour surfaces at the base of gravity flow channel, stable hemipelagic mudstone section, and the surface between fan retrogradation and progradation can be used for the correlations.

Zhenglong Jiang; Rong Wang; Wenbo Zheng

2014-01-01T23:59:59.000Z

215

Lifecycle impacts of natural gas to hydrogen pathways on urban air quality  

E-Print Network [OSTI]

on the impact of hydrogen production on urban air quality.in ambient air quality: (1) onsite hydrogen production; (2)centralized hydrogen production with gaseous hydrogen

Wang, Guihua; Ogden, Joan M; Nicholas, Michael A

2007-01-01T23:59:59.000Z

216

Air Quality  

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

What We Monitor & Why » What We Monitor & Why » Air Quality Air Quality To preserve our existing wilderness-area air quality, LANL implements a conscientious program of air monitoring. April 12, 2012 Real-time data monitoring for particulate matter An air monitoring field team member tests one of LANL's tapered element oscillating microbalance samplers, which collects real-time particulate matter data. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email LANL monitors air quality 24 hours a day, 365 days a year. Why we monitor air LANL monitors many different pathways in order to assess their impact on workers, the public, animals, and plants. We monitor the air around the Laboratory to ensure our operations are not affecting the air of nearby

217

Control Humidity With Single-Duct, Single-Zone, Constant Air Volume System  

E-Print Network [OSTI]

for the AHLJ after Adjusted Conditions I I Return Fan: off; Return Damper: closed; Outside Air Damper: closed (signal) I 7- 14-99 9:44 AM AHU Dimensions Total Air Flow (CW Average Velocity (FPM) Temperature ("F) Humidity (% RH) Dew Point (OF... (FPM) Humidity (% RH) 1 83.0 -... r------ L -/ Dew Point (OF) Static Pressure supply 24" x 24" 4450 1180 Outside Air N/ A 2490 N/ A Mix Air 20" x 36" 4530 1091 T~mnrmt~w~ (OF) I 67.6 1 73.0 I 72.1 I 85.7 I . - 62.9 10.75 Return Air...

Chen, H.; Deng, S.; Bruner, H. L.; Claridge, D. E.

2000-01-01T23:59:59.000Z

218

Demonstration of Intelligent Control and Fan Improvements in Computer Room Air Handlers  

E-Print Network [OSTI]

and technical measurement and verification services.Group Inc. provided measurement and verification for the El

Coles, Henry

2014-01-01T23:59:59.000Z

219

A COMPUTATIONAL AND EXPERIMENTAL ANALYSIS OF A DUCTED FAN USED IN VTOL UAV SYSTEMS  

E-Print Network [OSTI]

conditions. Fan rotor field including secondary flows, tip vortices, blade boundary layers and the wake sys wind tunnel test data. Total pressure measurements and computational predictions of mean flow field shows a significant level of 3D hub separation affecting the overall performance of the ducted fan

Camci, Cengiz

220

University of Nevada Las Vegas Arduino Project Report: Fan Speed Control as a Function of Thermistor  

E-Print Network [OSTI]

University of Nevada Las Vegas Arduino Project Report: Fan Speed Control as a Function, and an arduino board. The arduino board is programmed to read the analog input, the thermistor, and respond by the arduino that will decrease the speed of the fan. Furthermore, if the temperature goes up, the resistance

Kachroo, Pushkin

Note: This page contains sample records for the topic "fan central air" 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

The Spacing of Ceiling Fans for Human Comfort in Warm Temperature Conditions  

E-Print Network [OSTI]

Airspeed tests of a commercially popular 52 in. ceiling fan operating at a low speed of 155 fpm provided sufficient airspeed for comfort to 82F in an average floor area of 97.2 ft^2 beneath the fan. When operating at maximum speed, the average floor...

Spain, S.

1987-01-01T23:59:59.000Z

222

Reworking of Aggraded Debris Fans by the 1996 Controlled Flood on the Colorado  

E-Print Network [OSTI]

Reworking of Aggraded Debris Fans by the 1996 Controlled Flood on the Colorado River in Grand with the BUREAU OF RECLAMATION #12;Reworking of Aggraded Debris Fans by the 1996 Controlled Flood on the Colorado ....................................................................................................................... 6 Effects of debris flows on the Colorado River

223

Boost Converter Provides Temperature-Controlled Operation of 12V Fan from +5V Supply  

E-Print Network [OSTI]

Boost Converter Provides Temperature-Controlled Operation of 12V Fan from +5V Supply John Mc rated (12V supply) speed. Fan speed is controlled by sensing the ambient temperature in the system that the temperature control characteristic is unaffected by supply variations. The negative feedback loop

McNeill, John A.

224

Inlet swirl distortion effects on the generation and propagation of fan rotor shock noise  

E-Print Network [OSTI]

A body-force-based fan model for the prediction of multiple-pure-tone noise generation is developed in this thesis. The model eliminates the need for a full-wheel, three-dimensional unsteady RANS simulation of the fan blade ...

Defoe, Jeff (Jeffrey James)

2011-01-01T23:59:59.000Z

225

Fan-deltas and braid deltas: Varieties of coarse-grained deltas: Discussion and reply  

Science Journals Connector (OSTI)

...longitudinal profile analysis (Fig. 5, McPherson and others, 1987) to make the point that we were not considering only dry-type alluvial fans. Many other examples of wet-type fans exist in the literature (for example, Kochel and Johnson, 1984...

L. A. DUNNE; JOHN G. McPHERSON; GANAPATHY SHANMUGAM; RICHARD J. MOIOLA

226

Statistic inversion of multi-zone transition probability models for aquifer characterization in alluvial fans  

E-Print Network [OSTI]

Understanding the heterogeneity arising from the complex architecture of sedimentary sequences in alluvial fans is challenging. This paper develops a statistical inverse framework in a multi-zone transition probability approach for characterizing the heterogeneity in alluvial fans. An analytical solution of the transition probability matrix is used to define the statistical relationships among different hydrofacies and their mean lengths, integral scales, and volumetric proportions. A statistical inversion is conducted to identify the multi-zone transition probability models and estimate the optimal statistical parameters using the modified Gauss-Newton-Levenberg-Marquardt method. The Jacobian matrix is computed by the sensitivity equation method, which results in an accurate inverse solution with quantification of parameter uncertainty. We use the Chaobai River alluvial fan in the Beijing Plain, China, as an example for elucidating the methodology of alluvial fan characterization. The alluvial fan is divided...

Zhu, Lin; Gong, Huili; Gable, Carl; Teatini, Pietro

2015-01-01T23:59:59.000Z

227

Tips: Air Ducts | Department of Energy  

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

Air Ducts Air Ducts Tips: Air Ducts June 24, 2013 - 7:23pm Addthis Air Ducts: Out of Sight, Out of Mind. The unsealed ducts in your attic and crawlspaces lose air, and uninsulated ducts lose heat -- wasting energy and money. Air Ducts: Out of Sight, Out of Mind. The unsealed ducts in your attic and crawlspaces lose air, and uninsulated ducts lose heat -- wasting energy and money. Your air ducts are one of the most important systems in your home, and if the ducts are poorly sealed or insulated they are likely contributing to higher energy bills. Your home's duct system is a branching network of tubes in the walls, floors, and ceilings; it carries the air from your home's furnace and central air conditioner to each room. Ducts are made of sheet metal, fiberglass, or other materials.

228

Air pollution study of Laredo Customs Station  

E-Print Network [OSTI]

the accuracy of the scaled model with that of the actual station a complete survey of veloc1ty, pressure, temperature and video tape recordings were taken in Laredo. These results were then compared with those simulated in the wind tunnel. Good correlation... Circuitry for Model Ventilation System. . . 3-14 Instrumentation in the Control Room. . 22 24 25 26 27 28 31 32 4-1 Existing Forced Air System. 4-2 Video Taping at Laredo. 4-3 Exhaust Fan Velocity Measurement. 4-4 Wind Velocity Measurement...

Welling, Vidyadhar Yeshwant

2012-06-07T23:59:59.000Z

229

Core-based evidence for sandy slump and sandy debris flow facies in the Pliocene and Pleistocene of the Gulf of Mexico: Implications for submarine fan models  

SciTech Connect (OSTI)

Examination of nearly 3,500 feet of conventional core from Pliocene and Pleistocene deep-water reservoirs cored in 25 wells in 8 different areas covering the eastern, central and western Gulf of Mexico reveals that the reservoirs are predominantly composed of mass-transport deposits, mainly sandy slumps and sandy debris flows (60-100% of cored intervals). Bottom-current reworked sands are common (10-50%). Of importance to existing submarine fan models is that turbidities are extremely rare (<1 % of all cores). Sedimentary features indicative of slump and debris-flow origin include sand units with sharp upper contacts, slump folds, discordant, steeply dipping layers (up to 60[degrees]), glide planes, shear zones, brecciated clasts, rafted mudstone clasts, planar clast fabric, inverse grading of clasts, and moderate-to-high matrix content (5-20 %). These reservoirs have been interpreted by others to represent turbidite-dominated basin-floor fans and slope fans of the often used sequence stratigraphic model. However, our core data do not show a dominance of turbidities. Sandy debris flows exhibit a variety of log motifs (e.g., blocky, fining-up, and coarsening-up) due to changes in concentration of midstone clasts, and a variety of internal seismic facies (e.g., parallel-continuous, irregular-discontinuous, chaotic -discontinuous, and lateral pinch out) perhaps due to changes in stacking patterns of debris flows and slumps. Classic submarine-fan models, commonly advocated for these reservoirs, may not be appropriate. We propose a slump and debris-flow, dominated slope model in which sea-floor topography and depositional freezing (i.e., plastic flows) control sand distribution and geometry. Contrary to popular belief, sandy debris flows can be thick, areally extensive, and excellent reservoirs.

Shanmugam, G. (Mobil Exploration and Producing Technical Center, Dallas, TX (United States)); Zimbrick, G. (Mobil Exploration and Producing U.S., Dallas, TX (United States))

1996-01-01T23:59:59.000Z

230

Core-based evidence for sandy slump and sandy debris flow facies in the Pliocene and Pleistocene of the Gulf of Mexico: Implications for submarine fan models  

SciTech Connect (OSTI)

Examination of nearly 3,500 feet of conventional core from Pliocene and Pleistocene deep-water reservoirs cored in 25 wells in 8 different areas covering the eastern, central and western Gulf of Mexico reveals that the reservoirs are predominantly composed of mass-transport deposits, mainly sandy slumps and sandy debris flows (60-100% of cored intervals). Bottom-current reworked sands are common (10-50%). Of importance to existing submarine fan models is that turbidities are extremely rare (<1 % of all cores). Sedimentary features indicative of slump and debris-flow origin include sand units with sharp upper contacts, slump folds, discordant, steeply dipping layers (up to 60{degrees}), glide planes, shear zones, brecciated clasts, rafted mudstone clasts, planar clast fabric, inverse grading of clasts, and moderate-to-high matrix content (5-20 %). These reservoirs have been interpreted by others to represent turbidite-dominated basin-floor fans and slope fans of the often used sequence stratigraphic model. However, our core data do not show a dominance of turbidities. Sandy debris flows exhibit a variety of log motifs (e.g., blocky, fining-up, and coarsening-up) due to changes in concentration of midstone clasts, and a variety of internal seismic facies (e.g., parallel-continuous, irregular-discontinuous, chaotic -discontinuous, and lateral pinch out) perhaps due to changes in stacking patterns of debris flows and slumps. Classic submarine-fan models, commonly advocated for these reservoirs, may not be appropriate. We propose a slump and debris-flow, dominated slope model in which sea-floor topography and depositional freezing (i.e., plastic flows) control sand distribution and geometry. Contrary to popular belief, sandy debris flows can be thick, areally extensive, and excellent reservoirs.

Shanmugam, G. [Mobil Exploration and Producing Technical Center, Dallas, TX (United States); Zimbrick, G. [Mobil Exploration and Producing U.S., Dallas, TX (United States)

1996-12-31T23:59:59.000Z

231

Four new species of deep water agglutinated foraminifera from the OligoceneMiocene of the Congo Fan  

E-Print Network [OSTI]

Four new species of deep water agglutinated foraminifera from the Oligocene­Miocene of the Congo-water agglutinated benthic foraminifera are described from the Oligocene and Miocene of the Congo Fan, offshore the distal section of the Congo Fan. INTRODUCTION The Congo Fan is a terrigenous wedge largely built

Kaminski, Michael A.

232

Determining Critical Pressure and Duct Leakage in VAV Air-Handling Units  

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

Determining Critical Pressure and Duct Leakage in VAV Air-Handling Units Determining Critical Pressure and Duct Leakage in VAV Air-Handling Units Speaker(s): Clifford Federspiel Date: December 3, 2003 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Nance Matson Fans for moving air in buildings use a significant amount of energy. It is well known that fan energy use in variable-air-volume (VAV) systems can be reduced by resetting the supply duct pressure. The standard way to reset duct pressure is by controlling the most-open terminal damper to a nearly open position. Most systems can't measure terminal damper positions, so pressures are either not reset at all or use ad hoc resetting strategies that are configured sub-optimally. In this seminar I will describe a new method of determining the critical supply duct pressure for VAV systems.

233

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

234

Outside Air Ventilation Controller - Building America Top Innovation...  

Energy Savers [EERE]

demand up to 50% in California's central valley climates and can eliminate the need for air conditioning altogether in the coastal climate. Variations of these systems are being...

235

INFLUENCE OF SUPPLY AIR TEMPERATURE ON UNDERFLOOR AIR DISTRIBUTION (UFAD) SYSTEM ENERGY PERFORMANCE  

E-Print Network [OSTI]

this study, perimeter fan coil unit (FCU) energy also addsvariable speed series fan coil unit. The FCU shuts off whenunit including an economizer, chilled water cooling coil, and supply fan.

2012-01-01T23:59:59.000Z

236

Fan-shape optimisation using CFD and genetic algorithms for increasing the efficiency of electric motors  

Science Journals Connector (OSTI)

The electric motor efficiency represents the effectiveness with which the motor converts electrical energy into mechanical energy. As the energy losses are converted into heat, which is dissipated by the motor frame aided by internal and external fans, a better cooling system adds up to better efficiency. In recent years, improvements in motor efficiency have been achieved but at higher costs. By using Genetic Algorithms (GAs), changes are introduced to the fan shape looking for a better aerodynamic performance. The evaluation of the achieved fan efficiency with the modified shapes is performed with Computational Fluid Dynamics (CFD) simulation software.

Noel Leon-Rovira; Eduardo Uresti; Waldo Arcos

2007-01-01T23:59:59.000Z

237

Property:Building/SPBreakdownOfElctrcityUseKwhM2Fans | Open Energy  

Open Energy Info (EERE)

Fans Fans Jump to: navigation, search This is a property of type String. Fans Pages using the property "Building/SPBreakdownOfElctrcityUseKwhM2Fans" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 5.21311928139 + Sweden Building 05K0002 + 18.5995610535 + Sweden Building 05K0003 + 20.3514016294 + Sweden Building 05K0004 + 8.08671679198 + Sweden Building 05K0005 + 16.0166245259 + Sweden Building 05K0006 + 10.358795651 + Sweden Building 05K0007 + 8.3953561818 + Sweden Building 05K0008 + 9.28527472527 + Sweden Building 05K0009 + 12.8398873749 + Sweden Building 05K0010 + 20.0966982674 + Sweden Building 05K0011 + 6.90408963585 + Sweden Building 05K0012 + 8.60719192175 + Sweden Building 05K0013 + 16.7539365907 +

238

Property:Building/SPBreakdownOfElctrcityUseKwhM2CirculationFans | Open  

Open Energy Info (EERE)

CirculationFans CirculationFans Jump to: navigation, search This is a property of type String. Circulation fans Pages using the property "Building/SPBreakdownOfElctrcityUseKwhM2CirculationFans" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 13.3422495258 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 2.80646609789 + Sweden Building 05K0004 + 8.95823904901 + Sweden Building 05K0005 + 5.55016340076 + Sweden Building 05K0006 + 6.81308969891 + Sweden Building 05K0007 + 2.02541916787 + Sweden Building 05K0008 + 0.625641025641 + Sweden Building 05K0009 + 7.59721281624 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.757191316527 + Sweden Building 05K0012 + 6.04077487892 + Sweden Building 05K0013 + 0.767224182906 +

239

High-amplitude reflection packets (HARPs) of the Mississippi Fan, Gulf of Mexico  

E-Print Network [OSTI]

sediment volumes. Mississippi Fan HARP deposition can be described by three depositional models: the "avulsion" model, the "fill and spill" model, and the "transition" model. The "avulsion" depositional model, developed by Flood et al. (1991), describes...

Francis, Jason Michael

2012-06-07T23:59:59.000Z

240

Some dynamics of carbon, nitrogen and phosphorus in the marine shelf environment of the Mississippi Fan  

E-Print Network [OSTI]

SOME DYNAMICS OF CARBON, NITROGEN AND PHOSPHORUS IN THE MARINE SHELF ENVIRONMENT OF THE MISSISSIPPI FAN A Thesis by DANIEL WAYNE ARMSTRONG Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE December 1974 Major Subject: Chemical Oceanography SOME DYNAMICS OF CARBON NITROGEN, AND PHOSPHORUS IN THE MARINE SHELF ENVIRONMENT OF THE MISSISSIPPI FAN A Thesis by DANIEL WAYNE ARMSTRONG Approved as to style...

Armstrong, Daniel Wayne

1974-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "fan central air" 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

Late quaternary geomorphology and geoarchaeology of a segment of the Central Mimbres River Valley, Grant County, New Mexico  

E-Print Network [OSTI]

Two terraces, a modem floodplain, and alluvial fans were identified along a segment of the central Mimbres River Valley in Grant County, New Mexico. The oldest terrace, T2, is composed of one major depositional unit (1) and is capped by a...

Fitch, Michael Anthony

2012-06-07T23:59:59.000Z

242

Air Capture Introduction and Overview  

E-Print Network [OSTI]

first." It is much cheaper to capture CO2 from the flue gas of a coal power plant than from ambient air largely eliminated centralized sources of CO2 emissions, especially at coal and natural gas power plants of a facility that captures CO2 from the flue gas of a coal power plant, keeping all possible assumptions

243

Uranium-series comminution ages of continental sediments: Case study of a Pleistocene alluvial fan  

SciTech Connect (OSTI)

Obtaining quantitative information about the timescales associated with sediment transport, storage, and deposition in continental settings is important but challenging. The uranium-series comminution age method potentially provides a universal approach for direct dating of Quaternary detrital sediments, and can also provide estimates of the sediment transport and storage timescales. (The word"comminution" means"to reduce to powder," reflecting the start of the comminution age clock as reduction of lithic parent material below a critical grain size threshold of ~;;50 mu m.) To test the comminution age method as a means to date continental sediments, we applied the method to drill-core samples of the glacially-derived Kings River Fan alluvial deposits in central California. Sediments from the 45 m core have independently-estimated depositional ages of up to ~;;800 ka, based on paleomagnetism and correlations to nearby dated sediments. We characterized sequentially-leached core samples (both bulk sediment and grain size separates) for U, Nd, and Sr isotopes, grain size, surface texture, and mineralogy. In accordance with the comminution age model, where 234U is partially lost from small sediment grains due to alpha recoil, we found that (234U/238U) activity ratios generally decrease with age, depth, and specific surface area, with depletions of up to 9percent relative to radioactive equilibrium. The resulting calculated comminution ages are reasonable, although they do not exactly match age estimates from previous studies and also depend on assumptions about 234U loss rates. The results indicate that the method may be a significant addition to the sparse set of available tools for dating detrital continental sediments, following further refinement. Improving the accuracy of the method requires more advanced models or measurements for both the recoil loss factor fa and weathering effects. We discuss several independent methods for obtaining fa on individual samples that may be useful for future studies.

Lee, Victoria E.; DePaolo, Donald J.; Christensen, John N.

2010-04-30T23:59:59.000Z

244

Air Pollution  

Science Journals Connector (OSTI)

Both natural processes and human activities contribute to air pollution, with the combustion of fossil fuels being the largest anthropogenic source of air pollutants. Adverse health effects (above all respiratory and cardiovascular complications), damage to crops, natural vegetation and materials, reduced visibility and changed radiation balance of the atmosphere are the major consequences of high concentrations of air pollutants. Technical fixes can sharply reduce emissions from large stationary sources and lower the rates of automotive emissions, but the rising number of vehicles and longer time spent on the road will call for more radical solutions to traffic-generated photochemical smog now present in all major urban areas.

V. Smil

2001-01-01T23:59:59.000Z

245

A Comparative Study for the Air Distribution System of a Cleanroom with  

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

A Comparative Study for the Air Distribution System of a Cleanroom with A Comparative Study for the Air Distribution System of a Cleanroom with High Cooling Load and Airborne Molecular Sources Speaker(s): Shih-Cheng Hu Date: June 20, 2008 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Tim Xu With rapid change of production line in Taiwan IT Industries; increased productivity/flexibility in the same cleanroom space is required urgently. We have systematically compared two cleanroom ventilation systems i.e. conventional and ceiling return system. The wall return system has fixed location of Fan filter unit (FFU), return air shaft/wall and dry coiling coil. The ceiling return system with a specially designed Fan Filter Dry Coil Unit (FFDCU) installed just above a production tool with high heat/particle sources. For a wall return system, reduced flexibility and

246

Building America Case Study: Air Leakage and Air Transfer Between Garage and Living Space, Waldorf, Maryland (Fact Sheet)  

SciTech Connect (OSTI)

This research project focused on evaluation of air transfer between the garage and living space in a single-family detached home constructed by a production homebuilder in compliance with the 2009 International Residential Code and the 2009 International Energy Conservation Code. The project gathered important information about the performance of whole-building ventilation systems and garage ventilation systems as they relate to minimizing flow of contaminated air from garage to living space. A series of 25 multi-point fan pressurization tests and additional zone pressure diagnostic testing characterized the garage and house air leakage, the garage-to-house air leakage, and garage and house pressure relationships to each other and to outdoors using automated fan pressurization and pressure monitoring techniques. While the relative characteristics of this house may not represent the entire population of new construction configurations and air tightness levels (house and garage) throughout the country, the technical approach was conservative and should reasonably extend the usefulness of the results to a large spectrum of house configurations from this set of parametric tests in this one house. Based on the results of this testing, the two-step garage-to-house air leakage test protocol described above is recommended where whole-house exhaust ventilation is employed. For houses employing whole-house supply ventilation (positive pressure) or balanced ventilation (same pressure effect as the Baseline condition), adherence to the EPA Indoor airPLUS house-to-garage air sealing requirements should be sufficient to expect little to no garage-to-house air transfer.

Not Available

2014-11-01T23:59:59.000Z

247

Bos > AIR  

E-Print Network [OSTI]

The advent of air travel has produced a building typology completely new to the 20th century. The outdated planning of regions for airports render most existing airports as isolated, autonomous instances in the urban ...

Lee, Kevin Young

2014-01-01T23:59:59.000Z

248

Buildings Energy Data Book: 5.5 Thermal Distribution Systems  

Buildings Energy Data Book [EERE]

HVAC Equipment Manufacturers (2009 Million) Air-Handling Units 1032 Cooling Towers 533 Pumps 333 Central System Terminal Boxes 192 Classroom Unit Ventilator 160 Fan Coil Units 123...

249

Ductless Mini-Split Air Conditioners | Department of Energy  

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

Ductless Mini-Split Air Conditioners Ductless Mini-Split Air Conditioners Ductless Mini-Split Air Conditioners August 9, 2012 - 4:05pm Addthis A ductless mini-split air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/LUke1138. A ductless mini-split air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/LUke1138. What does this mean for me? A ductless mini-split air conditioner is easier to install than a central air conditioning system. A ductless mini-split air conditioner provides zoned air conditioning without ducting. A ductless mini-split air conditioner is relatively easy to install and does not provide an entry point for intruders as some room air conditioners do. Ductless, mini split-system air-conditioners (mini splits) have numerous

250

Ductless Mini-Split Air Conditioners | Department of Energy  

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

Ductless Mini-Split Air Conditioners Ductless Mini-Split Air Conditioners Ductless Mini-Split Air Conditioners August 9, 2012 - 4:05pm Addthis A ductless mini-split air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/LUke1138. A ductless mini-split air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/LUke1138. What does this mean for me? A ductless mini-split air conditioner is easier to install than a central air conditioning system. A ductless mini-split air conditioner provides zoned air conditioning without ducting. A ductless mini-split air conditioner is relatively easy to install and does not provide an entry point for intruders as some room air conditioners do. Ductless, mini split-system air-conditioners (mini splits) have numerous

251

4-1 2001 SITE ENVIRONMENTAL REPORT CHAPTER 4: AIR QUALITY  

E-Print Network [OSTI]

4-1 2001 SITE ENVIRONMENTAL REPORT CHAPTER 4: AIR QUALITY 2001 SITE ENVIRONMENTAL REPORT Air monitoring program, routine environmental air sampling is conducted to verify local air quality and to assess;2001 SITE ENVIRONMENTAL REPORT CHAPTER 4: AIR QUALITY 4-2 Target Processing Lab Central Steam Facility 0 100

Homes, Christopher C.

252

Energy Efficiency in Compressed Air Systems  

E-Print Network [OSTI]

of compressor rooms which employ multiple compressors can bring major benefits. Intelligent central controller constantly monitors air demands and select the most efficient combination of machines and compressor technologies to meet this demand in the most... efficient way. Without central controller, it is necessary to maintain different pressure settings for different compressors in a so called pressure cascade. This wastes energy as the compressors develop a higher than required pressure. Central...

Hingorani, A.; Pavlov, A.

2010-01-01T23:59:59.000Z

253

Risk Factors in Heating, Ventilating, and Air-Conditioning Systems for Occupant Symptoms in  

E-Print Network [OSTI]

cooling units (e.g. , fan coil units) in office buildingsinduction units, fan coil units, individual room packaged ACsystems, cooling tower, fan coil unit, and terminal units.

Mendell, M.J.; Lei-Gomez, Q.; Mirer, A.; Seppanen, O.; Brunner, G.

2007-01-01T23:59:59.000Z

254

LETTER REPORT INDEPENDENT VERIFICATION OF THE HIGH FLUX BEAM REACTOR DECOMMISSIONING PROJECT FAN HOUSE, BUILDING 704 BNL  

SciTech Connect (OSTI)

5098-LR-01-0 -LETTER REPORT INDEPENDENT VERIFICATION OF THE HIGH FLUX BEAM REACTOR DECOMMISSIONING PROJECT FAN HOUSE, BUILDING 704 BROOKHAVEN NATIONAL LABORATORY

P.C. Weaver

2010-10-22T23:59:59.000Z

255

Integrated Technology Air Cleaners (ITAC): Design and Evaluation  

SciTech Connect (OSTI)

The primary objective of this project was to design, build, and test an air cleaner for residential use with the potential to substantially improve indoor air quality, or maintain indoor air quality unchanged, when outdoor air ventilation rates are reduced to save energy. Two air cleaners were designed and fabricated. The design targets for airflow rate, fan power, and projected cost were met. In short term laboratory studies, both units performed as expected; however, during field studies in homes, the formaldehyde removal performance of the air cleaners was much lower than expected. In subsequent laboratory studies, incomplete decomposition of some indoor air volatile organic compounds, with formaldehyde as a product of partial decomposition of volatile organic compounds, was confirmed as the explanation for the poor formaldehyde removal performance in the field studies. The amount of formaldehyde produced per unit of decomposition of other volatile organic compounds was substantially diminished by increasing the amount of catalyst on the filter and also by decreasing the air velocity. Together, these two measures reduced formaldehyde production, per unit destruction of other volatile organic compounds, by a factor of four, while increasing the removal efficiency of volatile organic compounds by a factor of 1.4. A company with a southern California office is conducting studies in conjunction with Lawrence Berkeley National Laboratory, with the goal of incorporating the ITAC catalytic air cleaning technology in their future commercial products.

Fisk, William J.; Cohn, Sebastian; Destaillats, Hugo; Henzel, Victor; Sidheswaran, Meera; Sullivan, Douglas P.

2013-09-13T23:59:59.000Z

256

Air Resources: Prevention and Control of Air Contamination and Air  

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

Air Resources: Prevention and Control of Air Contamination and Air Air Resources: Prevention and Control of Air Contamination and Air Pollution, Air Quality Classifications and Standards, and Air Quality Area Classifications (New York) Air Resources: Prevention and Control of Air Contamination and Air Pollution, Air Quality Classifications and Standards, and Air Quality Area Classifications (New York) < Back Eligibility Agricultural Fuel Distributor Industrial Institutional Investor-Owned Utility Local Government Multi-Family Residential Municipal/Public Utility Nonprofit Rural Electric Cooperative Schools State/Provincial Govt Transportation Tribal Government Utility Program Info State New York Program Type Environmental Regulations Provider NY Department of Environmental Conservation These regulations establish emissions limits and permitting and operational

257

Stay Cool for Less Money with a Ceiling Fan | Department of Energy  

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

Stay Cool for Less Money with a Ceiling Fan Stay Cool for Less Money with a Ceiling Fan Stay Cool for Less Money with a Ceiling Fan May 12, 2009 - 5:00am Addthis Allison Casey Senior Communicator, NREL After a few late snowstorms here in Colorado, I am more than ready to turn off the heat and enjoy some warm spring weather. We haven't had any heat waves here yet, but many of you have already been trying to stay cool; our friends in Washington, D.C. were sweltering (by comparison) in 90+°F weather just a couple short weeks ago! Whether you're still anticipating snow or have broken out the sandals and tank tops, you may be starting to think about keeping your summer cooling costs down. One easy way to keep cool while saving money is using a ceiling fan. Did you know that a ceiling fan could allow you to raise the thermostat

258

Reduce Air Infiltration in Furnaces (English/Chinese) (Fact Sheet)  

SciTech Connect (OSTI)

Chinese translation of the Reduce Air Infiltration in Furnaces fact sheet. Provides suggestions on how to improve furnace energy efficiency. Fuel-fired furnaces discharge combustion products through a stack or a chimney. Hot furnace gases are less dense and more buoyant than ambient air, so they rise, creating a differential pressure between the top and the bottom of the furnace. This differential, known as thermal head, is the source of a natural draft or negative pressure in furnaces and boilers. A well-designed furnace (or boiler) is built to avoid air leakage into the furnace or leakage of flue gases from the furnace to the ambient. However, with time, most furnaces develop cracks or openings around doors, joints, and hearth seals. These openings (leaks) usually appear small compared with the overall dimensions of the furnace, so they are often ignored. The negative pressure created by the natural draft (or use of an induced-draft fan) in a furnace draws cold air through the openings (leaks) and into the furnace. The cold air becomes heated to the furnace exhaust gas temperature and then exits through the flue system, wasting valuable fuel. It might also cause excessive oxidation of metals or other materials in the furnaces. The heat loss due to cold air leakage resulting from the natural draft can be estimated if you know four major parameters: (1) The furnace or flue gas temperature; (2) The vertical distance H between the opening (leak) and the point where the exhaust gases leave the furnace and its flue system (if the leak is along a vertical surface, H will be an average value); (3) The area of the leak, in square inches; and (4) The amount of operating time the furnace spends at negative pressure. Secondary parameters that affect the amount of air leakage include these: (1) The furnace firing rate; (2) The flue gas velocity through the stack or the stack cross-section area; (3) The burner operating conditions (e.g., excess air, combustion air temperature, and so on). For furnaces or boilers using an induced-draft (ID) fan, the furnace negative pressure depends on the fan performance and frictional losses between the fan inlet and the point of air leakage. In most cases, it would be necessary to measure or estimate negative pressure at the opening. The amount of air leakage, the heat lost in flue gases, and their effects on increased furnace or boiler fuel consumption can be calculated by using the equations and graphs given in Industrial Furnaces (see W. Trinks et al., below). Note that the actual heat input required to compensate for the heat loss in flue gases due to air leakage would be greater than the heat contained in the air leakage because of the effect of available heat in the furnace. For a high-temperature furnace that is not maintained properly, the fuel consumption increase due to air leakage can be as high as 10% of the fuel input.

Not Available

2011-10-01T23:59:59.000Z

259

Development of an air-atomized oil burner  

SciTech Connect (OSTI)

A new concept for the design of a residential oil burner is presented involving a low pressure, air atomizing nozzle. Advantages of this approach, relative to conventional, pressure atomized burners include: ability to operate at very low excess air levels without smoke, ability to operate at low (and possibly variable) rates, reduced boiler fouling, and low NO{sub x}. The nozzle used is a low pressure, airblast atomizer which can achieve fuel spray drop sizes similar to conventional nozzles and very good combustion performance with air pressure as low as 5 inches of water (1.24 kPa). A burner head has been developed for this nozzle and combustion test results are presented in a wide variety of equipment including cast iron and steel boilers, warm air furnaces, and water heaters over the firing rate range 0.25 gph to 1.0 gph (10 to 41 kW). Beyond the nozzle and combustion head the burner system must be developed and two approaches have been taken. The first involves a small, brushless DC motor/fan combination which uses high fan speed to achieve air pressures from 7 to 9 inches of water (1.74 to 2.24 kPa). Fuel is delivered to the atomizer at less than 1 psig (6.9 kPa) using a solenoid pump and flow metering orifice. At 0.35 gph (14 kW) the electric power draw of this burner is less than 100 watts. In a second configuration a conventional motor is used with a single stage fan which develops 5 to 6 inches of water pressure (1.24 to 1.50 kPa) at similar firing rates. This burner uses a conventional type fuel pump and metering orifice to deliver fuel. The fuel pump is driven by the fan motor, very much like a conventional burner. This second configuration is seen as more attractive to the heating industry and is now being commercialized. Field tests with this burner have been conducted at 0.35 gph (14 kW) with a side-wall vented boiler/water storage tank combination.

Butcher, T.A.; Celebi, Y.

1996-06-01T23:59:59.000Z

260

Heat balance for two commercial broiler barns with solar preheated ventilation air  

Science Journals Connector (OSTI)

In temperate climatic zones, solar air heaters can reduce heating loads, and increase winter ventilation rates thereby improving inside air quality and livestock performance without additional fuel input. A heat balance was carried out to measure bird heat production under field conditions on two commercial broiler barns to evaluate the impact of solar heated ventilation air on bird performance, and identify strategies to reduce winter heating load. Located 40km east of Montreal, Canada, the experimental broiler barns were identically built with three floors housing 6500 birds per floor in an all-in all-out fashion. Equipped with solar air pre-heaters over their fresh air inlets, the barns were instrumented to monitor inlet, inside and outside air conditions, ventilation rate and heating system operating time. The effects on bird performance were observed from November 2007 to March 2009 by alternating their operation between the barns. The measured sensible and total heat productions of 4.5W and 8.4W, respectively, for 1kg birds corresponded to laboratory measured values. Bird performance was not affected by the solar air pre-heaters which increased the ventilation rate above normal during only 20% of the daytime period. Room air temperature stratification resulted in 2040kW of heat losses during the winter, representing 25% of the total natural gas heat load. Because inside air moved directly to the fans, large and rapid increases in ventilation inlet air temperature, produced by the solar air pre-heaters, resulted in further heat losses equivalent to 15% of the solar energy recovered. Sustainable energy management in livestock barns requiring heating should incorporate an air mixing system to eliminate air temperature stratification and improve fan flows.

Sbastien Cordeau; Suzelle Barrington

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "fan central air" 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

Strategy Guideline: Compact Air Distribution Systems  

SciTech Connect (OSTI)

This Strategy Guideline discusses the benefits and challenges of using a compact air distribution system to handle the reduced loads and reduced air volume needed to condition the space within an energy efficient home. Traditional systems sized by 'rule of thumb' (i.e., 1 ton of cooling per 400 ft2 of floor space) that 'wash' the exterior walls with conditioned air from floor registers cannot provide appropriate air mixing and moisture removal in low-load homes. A compact air distribution system locates the HVAC equipment centrally with shorter ducts run to interior walls, and ceiling supply outlets throw the air toward the exterior walls along the ceiling plane; alternatively, high sidewall supply outlets throw the air toward the exterior walls. Potential drawbacks include resistance from installing contractors or code officials who are unfamiliar with compact air distribution systems, as well as a lack of availability of low-cost high sidewall or ceiling supply outlets to meet the low air volumes with good throw characteristics. The decision criteria for a compact air distribution system must be determined early in the whole-house design process, considering both supply and return air design. However, careful installation of a compact air distribution system can result in lower material costs from smaller equipment, shorter duct runs, and fewer outlets; increased installation efficiencies, including ease of fitting the system into conditioned space; lower loads on a better balanced HVAC system, and overall improved energy efficiency of the home.

Burdick, A.

2013-06-01T23:59:59.000Z

262

CENTRAL FILES  

Office of Legacy Management (LM)

/ .- / .- ~ _. ,- *-.* . . CENTRAL FILES +, a/ o(-t.z2-5 AlLO 1 Pab-FJr 3. 19% TYtxP REPaT To A&7bA cM.m rlmc)HA~ ON JANtJm 23, 1956 f. A. W~~~+Y, M.D. c. 1. 08huRann 8nd J. A. Hlaeririg ob3e8tilw of Trlpr in @ ttd~, (;rulw 2?), 1956, a ttip na nda to UM Crrrit &abw8tury, cword, Ohio. The purpow o? this trip u&a to aondwt the WMnd ti 8 #etia8 of indUrtF%al mgiene run~yr uhiah hre been Thwr8port ia 8 66mpondzLusofthe Amu4ll;rmtr forth&, rtsnyu@raaaderith~.~~M Alb8ugh, emamrud~~roft&~b8 Cnft UbOP&tOraJ'. Duaar&ptian of Trtpr The m88h&nlng oper8t1oM 8t the Alba ah6p lmm UlrrWarf tho# sf&&8mBthrrbrsrtbiefint~~#rru&. r%vo tUX!'lWt %&t&88, m (1) M8hb8 UthM, iOUr 4 th 5) urbthPW(3)dF%ll pSW888SUW8 ba-8

263

Diagnosis of Effectiveness of HVAC System and Energy Performance of Osaka-Gas Building through Retro-Commissioning Part 1 Outline of HVAC Systems and Diagnosis of Energy Efficiency of Air Systems  

E-Print Network [OSTI]

-22b AC-22a AC-22b INV Output 97% (58.2Hz) 84% (50.4Hz) 70% (40.8Hz) Air volume at the outlet duct 87,848 m3/h 56,968 m3/h 42,635 m3/h Power consumption 70.0kW 46.8kW 20.6kW Outlet static pressure 854Pa 798Pa 802Pa 5F MD... 2013 Note 1: Circles (?) in Figure 6.1 represent operating points of the fans alone. Triangles (?) represent operating air volumes calculated based on the fans static pressure. Note 2: Numbers in boxes ??? represent air volume measurement...

Hatanaka,T.; Aoki,K; Matsuda, N.; Yamaha,M.; Tanaka,H.; Nakahara,N.

2014-01-01T23:59:59.000Z

264

Air leakage test report: EPA region 8 headquarters, Denver, CO  

E-Print Network [OSTI]

of 21 underfloor fan-coil units, which are ducted to aductwork by underfloor fan coil units and have no dampers toiwc and each of the 21 fan coil units has capacity of 1200

Bauman, Fred; Webster, Tom; Dickerhoff, Darryl

2008-01-01T23:59:59.000Z

265

Lessons learned in modeling Underfloor Air Distribution system  

E-Print Network [OSTI]

UFAD variable speed fan coil units are not straightforwarda variable speed fan coil unit model object was developed inand a constant volume fan coil unit, used only for heating.

Lee, Kwang Ho; Schiavon, Stefano; Webster, Tom; Bauman, Fred; Feng, Jingjuan; Hoyt, Tyler

2011-01-01T23:59:59.000Z

266

Simulation of energy performance of underfloor air distribution (UFAD) systems  

E-Print Network [OSTI]

system represents a fan coil unit (FCU) system, consistingEnergy use intensity EUI Fan coil unit F CU HVAC electricityarea Fan powered terminal unit (with heating coil) used for

2009-01-01T23:59:59.000Z

267

Gas-dynamic characteristics of a noise and heat insulating jacket on a gas turbine in a gas pumping plant on emergency disconnection of the cooling fans  

Science Journals Connector (OSTI)

The paper discusses the operation of a gas turbine plant (GTP) when the fans in ... NHJ by a fan. The operation of gas-pumping plant involves working with brief (10 ... describing the motion of an ideal thermally...

P. V. Trusov; D. A. Charntsev; I. R. Kats

2008-09-01T23:59:59.000Z

268

Assessment and Improvements of the CBE Underfloor Air Distribution (UFAD) Cooling Load Design Tool  

E-Print Network [OSTI]

diffusers and underfloor fan coil units. .. 53 Figure 33 Thediffusers and underfloor fan coil units. Table 14 shows the

Chen, Bin

2014-01-01T23:59:59.000Z

269

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

270

List of Duct/Air sealing Incentives | Open Energy Information  

Open Energy Info (EERE)

Duct/Air sealing Incentives Duct/Air sealing Incentives Jump to: navigation, search The following contains the list of 580 Duct/Air sealing Incentives. CSV (rows 1-500) CSV (rows 501-580) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP (Central and North) - Residential Energy Efficiency Programs (Texas) Utility Rebate Program Texas Construction Installer/Contractor Multi-Family Residential Building Insulation Caulking/Weather-stripping Comprehensive Measures/Whole Building Custom/Others pending approval Duct/Air sealing Unspecified technologies Yes AEP (Central and SWEPCO) - Coolsaver A/C Tune Up (Texas) Utility Rebate Program Texas Commercial Installer/Contractor Residential Central Air conditioners Custom/Others pending approval Duct/Air sealing

271

CleanRooms Magazine, November 2006 Development of a Fan-Filter Unit Test Standard, Laboratory  

E-Print Network [OSTI]

LBNL-61750 CleanRooms Magazine, November 2006 Development of a Fan-Filter Unit Test Standard and provide particle filtration control for clean environments. Much of the energy in cleanrooms (and-filter units that are typically located in the ceiling (25-100% coverage) of cleanroom controlled environments

272

Quantitative characteristics of sinuous distributary channels on the Amazon Deep-Sea Fan  

Science Journals Connector (OSTI)

...hydrodynamic parameters somewhat similar to those encountered in sub- aerial rivers (Damuth and others, 1983a, and unpub. data). Clearly...submarine fan channel/levee systems: Geo-Marine Letters. Fukushima, Y., Parker, G and Pantin, H. M., 1985, Prediction...

273

Challenges and Prospects of Nanopillar-Based Solar Cells Zhiyong Fan1,2,3  

E-Print Network [OSTI]

], and solar energy into electricity [20 33]. In this review article, we summarize the continuous progress own advantages and disadvantages. The device structures utilizing radial NPL junctions (i.e., coreChallenges and Prospects of Nanopillar-Based Solar Cells Zhiyong Fan1,2,3 , Daniel J. Ruebusch1

Javey, Ali

274

Performance characteristics of a low pressure cyclone for axial-flow fan exhausts  

E-Print Network [OSTI]

pneumatically convey lint fiber to the first-stage lint cleaner. typically, covered condenser drums with fine mesh screens are the abatement devices used on a)axial-flow fan exhausts. A new ID2D Low Pressure Cyclone (LPC) was developed that could be used...

Simpson, Shay Lynn

2012-06-07T23:59:59.000Z

275

NATURAL HAZARDS ON ALLUVIAL FANS: THE VENEZUELA DEBRIS FLOW AND FLASH FLOOD DISASTER  

E-Print Network [OSTI]

NATURAL HAZARDS ON ALLUVIAL FANS: THE VENEZUELA DEBRIS FLOW AND FLASH FLOOD DISASTER In December Venezuela. Rainfall on December 2-3 totaled 200 millimeters (8 inches) and was followed by a major storm, Denver, Colorado, Naples, Italy, and Vargas, Venezuela. In time scales spanning thousands of years

Eaton, L. Scott

276

Sentiment-Oriented Contextual Advertising Teng-Kai Fan Chia-Hui Chang  

E-Print Network [OSTI]

Sentiment-Oriented Contextual Advertising Teng-Kai Fan Chia-Hui Chang Department of Computer 320, R.O.C. tengkaifan@gmail.com chia@csie.ncu.edu.tw Abstract Web advertising (Online advertising), a form of advertising that uses the World Wide Webtoattractcustomers

Chang, Chia-Hui

277

Sentiment-Oriented Contextual Advertising Teng-Kai Fan, Chia-Hui Chang  

E-Print Network [OSTI]

Sentiment-Oriented Contextual Advertising Teng-Kai Fan, Chia-Hui Chang Department of Computer@gmail.com, chia@csie.ncu.edu.tw Abstract. Web advertising (Online advertising), a form of advertising that uses. This paper addresses the mechanism of Content- Oriented advertising (Contextual advertising), which refers

Chang, Chia-Hui

278

QPIAD: Query Processing over Incomplete Autonomous Databases Hemal Khatri Jianchun Fan Yi Chen Subbarao Kambhampati  

E-Print Network [OSTI]

QPIAD: Query Processing over Incomplete Autonomous Databases Hemal Khatri Jianchun Fan Yi Chen.khatri,jcf,yi,rao}@asu.edu Abstract Incompleteness due to missing attribute values (aka "null values") is very common in autonomous missing attributes, even if they wind up being rel- evant to a user query. Ideally we would like

Chen, Yi

279

Comparison of test particle acceleration in torsional spine and fan reconnection regimes  

SciTech Connect (OSTI)

Magnetic reconnection is a common phenomenon taking place in astrophysical and space plasmas, especially in solar flares which are rich sources of highly energetic particles. Torsional spine and fan reconnections are important mechanisms proposed for steady-state three-dimensional null-point reconnection. By using the magnetic and electric fields for these regimes, we numerically investigate the features of test particle acceleration in both regimes with input parameters for the solar corona. By comparison, torsional spine reconnection is found to be more efficient than torsional fan reconnection in an acceleration of a proton to a high kinetic energy. A proton can gain as high as 100?MeV of relativistic kinetic energy within only a few milliseconds. Moreover, in torsional spine reconnection, an accelerated particle can escape either along the spine axis or on the fan plane depending on its injection position. However, in torsional fan reconnection, the particle is only allowed to accelerate along the spine axis. In addition, in both regimes, the particle's trajectory and final kinetic energy depend on the injection position but adopting either spatially uniform or non-uniform localized plasma resistivity does not much influence the features of trajectory.

Hosseinpour, M., E-mail: hosseinpour@tabrizu.ac.ir; Mehdizade, M.; Mohammadi, M. A. [Plasma Physics Department, University of Tabriz, Tabriz (Iran, Islamic Republic of)

2014-10-15T23:59:59.000Z

280

Power Aware Page Allocation Alvin R. Lebeck, Xiaobo Fan, Heng Zeng, Carla Ellis  

E-Print Network [OSTI]

Power Aware Page Allocation Alvin R. Lebeck, Xiaobo Fan, Heng Zeng, Carla Ellis Department of Computer Science Duke University alvy@cs.duke.edu http://www.cs.duke.edu/~alvy Milly Watt #12;Power Aware Page Allocation 2© Alvin R. Lebeck, 2000 Power Aware System Design ?Traditional system design targets

Ellis, Carla

Note: This page contains sample records for the topic "fan central air" 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

Single Molecule Electrochemistry Fu-Ren F. Fan, Juhyoun Kwak, and Allen J. Bard*,  

E-Print Network [OSTI]

Single Molecule Electrochemistry Fu-Ren F. Fan, Juhyoun Kwak, and Allen J. Bard*, Contribution from here electrochemical studies at the level of single molecules and small numbers of molecules. The detection of single molecules, their characterization, and their chemical and physical manipulation have

Kwak, Juhyoun

282

Energy Conservation Program for Consumer Products: Test Procedures for Residential Furnaces Fans; Correction  

Broader source: Energy.gov [DOE]

On January 3, 2014 the U.S. Department of Energy (DOE) published a final rule in the Federal Register that established the test procedure for residential furnace fans. Due to drafting errors, that document inadvertently removed necessary incorporation by reference material in the Code of Federal Regulations (CFR). This final rule rectifies this error by once again adding the removed material.

283

L1 Adaptive Control of Hysteresis in Smart Materials Xiang Fan and Ralph C. Smith  

E-Print Network [OSTI]

L1 Adaptive Control of Hysteresis in Smart Materials Xiang Fan and Ralph C. Smith Center 27695 ABSTRACT Smart materials display coupling between electrical, magnetic, thermal and elastic inherent to smart materials presents a challenge in control of these actuators/sensors. Inverse

284

Buildings Energy Data Book: 5.5 Thermal Distribution Systems  

Buildings Energy Data Book [EERE]

5 5 Typical Commercial Building Thermal Energy Distribution Design Load Intensities (Watts per SF) Distribution System Fans Other Central System Supply Fans Cooling Tower Fan Central System Return Fans Air-Cooled Chiller Condenser Fan 0.6 Terminal Box Fans 0.5 Exhaust Fans (2) Fan-Coil Unit Fans (1) Condenser Fans 0.6 Packaged or Split System Indoor Blower 0.6 Pumps Chilled Water Pump Condenser Water Pump Heating Water Pump Note(s): Source(s): 0.1 - 0.2 0.1 - 0.2 1) Unducted units are lower than those with some ductwork. 2) Strong dependence on building type. BTS/A.D. Little, Energy Consumption Characteristics of Commercial Building HVAC Systems, Volume II:Thermal Distribution, Auxiliary Equipment, and Ventilation, Oct. 1999, Table 3-1, p. 3-6. 0.3 - 1.0 0.1 - 0.3 0.1 - 0.4

285

Central Ferry Lower Monumental  

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

Projects Wind Projects Central Ferry Lower Monumental Transmission Line Project BPA will build a new 500-kilovolt (kV) transmission line from BPA's Central Ferry...

286

Building Energy Monitoring and Analysis  

E-Print Network [OSTI]

Fan Control Hot Water Temperature Supply Air TemperatureAir Temperature Supply Air Temperature Fan Control AverageTemperature Supply Air Temperature Fan Control Average Zone

Hong, Tianzhen

2014-01-01T23:59:59.000Z

287

Clean Cities: Central Coast Clean Cities coalition  

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

Coast Clean Cities Coalition Coast Clean Cities Coalition The Central Coast Clean Cities coalition works with vehicle fleets, fuel providers, community leaders, and other stakeholders to reduce petroleum use in transportation. Central Coast Clean Cities coalition Contact Information Melissa Guise 805-305-5491 mguise@co.slo.ca.us Coalition Website Clean Cities Coordinator Melissa Guise Photo of Melissa Guise Melissa Guise is the coordinator of the Central Coast Clean Cities Coalition (C5) and works as an air quality specialist for the San Luis Obispo County Air Pollution Control District in San Luis Obispo, California. Guise has been the coalition's coordinator since 2004. Guise has over 25 years of experience in the environmental field working in both the public and private sectors. For the past eight years, she has

288

Hybrid solar central receiver for combined cycle power plant  

DOE Patents [OSTI]

A hybrid combined cycle power plant including a solar central receiver for receiving solar radiation and converting it to thermal energy. The power plant includes a molten salt heat transfer medium for transferring the thermal energy to an air heater. The air heater uses the thermal energy to preheat the air from the compressor of the gas cycle. The exhaust gases from the gas cycle are directed to a steam turbine for additional energy production.

Bharathan, Desikan (Lakewood, CO); Bohn, Mark S. (Golden, CO); Williams, Thomas A. (Arvada, CO)

1995-01-01T23:59:59.000Z

289

L'accident la centrale nuclaire de Quelques explications scientifiques  

E-Print Network [OSTI]

L'accident à la centrale nucléaire de Fukushima Quelques explications scientifiques G. Marleau, J´eal, 18 mars 2011 L'accident `a la centrale nucl´eaire de Fukushima ­ 1/29 Accident de Fukushima 1 Contenu de Fukushima. 3. La puissance résiduelle. 4. Perte de refroidissement et conséquences. 5

Skorobogatiy, Maksim

290

Air Leakage of Furnaces and Air Handlers  

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

Air Leakage of Furnaces and Air Handlers Air Leakage of Furnaces and Air Handlers Title Air Leakage of Furnaces and Air Handlers Publication Type Journal Article LBNL Report Number LBNL-5553E Year of Publication 2010 Authors Walker, Iain S., Mile Lubliner, Darryl J. Dickerhoff, and William W. Delp Journal 2010 ACEEE Summer Study on Energy Efficiency in Buildings The Climate for efficiency is now Date Published 08/2010 Abstract In recent years, great strides have been made in reducing air leakage in residential and to a lesser extent small commercial forced air duct systems. Several authorities have introduced low leakage limits for thermal distribution systems; for example, the State of California Energy Code for Buildings gives credit for systems that leak less than 6% of the total air flow at 25 Pa.

291

Metal-Air Batteries  

SciTech Connect (OSTI)

Metal-air batteries have much higher specific energies than most currently available primary and rechargeable batteries. Recent advances in electrode materials and electrolytes, as well as new designs on metal-air batteries, have attracted intensive effort in recent years, especially in the development of lithium-air batteries. The general principle in metal-air batteries will be reviewed in this chapter. The materials, preparation methods, and performances of metal-air batteries will be discussed. Two main metal-air batteries, Zn-air and Li-air batteries will be discussed in detail. Other type of metal-air batteries will also be described.

Zhang, Jiguang; Bruce, Peter G.; Zhang, Gregory

2011-08-01T23:59:59.000Z

292

Jasper: the Art of Exploration in Greedy Best First Search Fan Xie and Martin Mller and Robert Holte  

E-Print Network [OSTI]

Jasper: the Art of Exploration in Greedy Best First Search Fan Xie and Martin Müller and Robert restarts and randomization for better quality search. Jasper is a satisficing planner that builds on LAMA

Müller, Martin

293

Finding the largest low-rank clusters with Ky Fan 2-k-norm and l1-norm  

E-Print Network [OSTI]

Mar 24, 2014 ... Abstract: We propose a convex optimization formulation with the Ky Fan 2-k-norm and l1-norm to fi nd k largest approximately rank-one...

Xuan Vinh Doan

2014-03-24T23:59:59.000Z

294

Memorandum Memorializing Ex Parte Communication, DOE impending determination of coverage for commercial and industrial fans, blowers, and fume hoods.  

Broader source: Energy.gov [DOE]

The meeting was requested by AMCA International to introduce the associations leadership, standards, and experience in developing fan standards to DOE; to learn more about the DOE process for...

295

2014-09-19 Issuance: Energy Conservation Program for Consumer Products: Test Procedure for Ceiling Fans;NOPR  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register notice of proposed rulemaking regarding Energy Conservation Program for Consumer Products: Test Procedure for Ceiling Fans, as issued by the Deputy Assistant Secretary for Energy Efficiency on September 19, 2014.

296

Field Study of Exhaust Fans for Mitigating Indoor Air Quality Problems: Final Report to Bonneville Power Administration  

E-Print Network [OSTI]

Nitrogen dioxide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .in each house. Nitrogen dioxide concentrations in each housesampler Formaldehyde, nitrogen dioxide and water vapor

Grimsrud, David T.

2009-01-01T23:59:59.000Z

297

Building America Whole-House Solutions for New Homes: Evluating Through-Wall Air Transfer Fans, Pittburgh, Pennsylvania  

Broader source: Energy.gov [DOE]

In this project, Building America team IBACOS performed field testing in a new construction unoccupied test house in Pittsburgh, Pennsylvania to evaluate HVAC distribution systems during heating, cooling, and midseason conditions.

298

Field Study of Exhaust Fans for Mitigating Indoor Air Quality Problems: Final Report to Bonneville Power Administration  

E-Print Network [OSTI]

to mount the passive samplers in a house. designed describedhouses screened for study List of Figures A.l A.2 A.3 A.4 PassivePassive Sampler Sampler Girman/Allen Girman/Allen Wednesday 16 November Test house (

Grimsrud, David T.

2009-01-01T23:59:59.000Z

299

Science on Saturday attracts science fans of all ages | Princeton Plasma  

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

Science on Saturday attracts science fans of all ages Science on Saturday attracts science fans of all ages By Jeanne Jackson DeVoe January 28, 2013 Tweet Widget Facebook Like Google Plus One Joshua E. G. Peek, a Hubble Fellow at Columbia University's Department of Astronomy and son of PPPL physicist and former director Robert Goldston, discusses "Outer Space!" (Photo by Elle Starkman/PPPL Office of Communications) Joshua E. G. Peek, a Hubble Fellow at Columbia University's Department of Astronomy and son of PPPL physicist and former director Robert Goldston, discusses "Outer Space!" Gallery: High school senior Varuni Bewtra comes to the lectures to learn about possible careers in science. (Photo by Photo by Jeanne Jackson DeVoe/PPPL Office of Communications) High school senior Varuni Bewtra comes to the lectures to learn about

300

Economic Recovery of Oil Trapped at Fan Margins Using High Angle Wells and Multiple Hydraulic Fractures  

SciTech Connect (OSTI)

The distal fan margin in the northeast portion of the Yowlumne field contains significant reserves but is not economical to develop using vertical wells. Numerous interbedded shales and deteriorating rock properties limit producibility. In addition, extreme depths (13,000 ft) present a challenging environment for hydraulic fracturing and artificial lift. Lastly, a mature waterflood increases risk because of the uncertainty with size and location of flood fronts. This project attempts to demonstrate the effectiveness of exploiting the distal fan margin of this slope-basin clastic reservoir through the use of a high-angle well completed with multiple hydraulic-fracture treatments. The combination of a high-angle (or horizontal) well and hydraulic fracturing will allow greater pay exposure than can be achieved with conventional vertical wells while maintaining vertical communication between thin interbedded layers and the wellbore. The equivalent production rate and reserves of three vertical wells are anticipated at one-half to two-thirds the cost.

Mike L. Laue

1997-05-30T23:59:59.000Z

Note: This page contains sample records for the topic "fan central air" 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

Effects of air flow directions on composting process temperature profile  

SciTech Connect (OSTI)

In this study, chicken manure mixed with carnation wastes was composted by using three different air flow directions: R1-sucking (downward), R2-blowing (upward) and R3-mixed. The aim was to find out the most appropriate air flow direction type for composting to provide more homogenous temperature distribution in the reactors. The efficiency of each aeration method was evaluated by monitoring the evolution of parameters such as temperature, moisture content, CO{sub 2} and O{sub 2} ratio in the material and dry material losses. Aeration of the reactors was managed by radial fans. The results showed that R3 resulted in a more homogenous temperature distribution and high dry material loss throughout the composting process. The most heterogeneous temperature distribution and the lowest dry material loss were obtained in R2.

Kulcu, Recep [Akdeniz University, Faculty of Agriculture, Department of Farm Machinery, Antalya (Turkey); Yaldiz, Osman [Akdeniz University, Faculty of Agriculture, Department of Farm Machinery, Antalya (Turkey)], E-mail: yaldiz@akdeniz.edu.tr

2008-07-01T23:59:59.000Z

302

Continuous Commissioning of a Single Fan Dual Duct System in an Office Building  

E-Print Network [OSTI]

Continuous Commissioning of a Single Fan Dual Duct System in an Office Building D. Dong M. Liu, Ph.D., P.E Jinrong Wang, P.E Energy Systems Laboratory Energy Systems Laboratory... of AHU control sequences can significantly improve building comfort and reduce HVAC energy cost. REFERENCES 1. Liu, M., Y. Zhu, and D. E. Claridge, Use of EMCS Recorded Data to Identify Potential Savings Due to Improved HVAC Operations...

Dong, D.; Liu, M.

2005-01-01T23:59:59.000Z

303

A study of the design procedure and the performance characteristics of axial exhaust fans  

E-Print Network [OSTI]

of the requirements for the degxee of %%STER OF SCIENCE IN NECHM3EEL ENGINEERIMG August, 19/9 COBTEEITS Intoroduct'o9. on o e e ~ ~ ~ ~ ~ e ~ e ~ ~ ~ ~ ~ 1 Ia Derivation of Fan Lass ~ ~ ~ ~ ~ ~ ~ ~ ~ 2 XI Description of Test Apparatus . . . . . ~. . . 7 XII... by s reversible electric motor operated by a reversing motor control switch, which is conveniently located near the Inclined manometer connected, to the pitot tube which measures the static pressure inside the plenum chamber. The followiug equipment composes...

Barker, Gilbert Hamilton

2012-06-07T23:59:59.000Z

304

Air Movers of the Eighties  

E-Print Network [OSTI]

Expensive fan wrecks and down time occurs when couplings break or gearboxes self-destruct. A viable alternative eliminates shaft, coupling, and gearbox moving motor to ground level, driving a hydraulic pump transmitting fluid under pressure. A...

Miller, G.

305

Air Pollution Control  

Science Journals Connector (OSTI)

Petroleum and chemical processes are responsible for many emissions both into the air. Most relevant emissions into the air are nitrous oxides (NOx), sulfur oxides ... compounds (VOC).The major cause of all air pollution

Alireza Bahadori

2014-01-01T23:59:59.000Z

306

Hickam Air Force Base  

Broader source: Energy.gov [DOE]

Hickam Air Force Base spans 2,850 acres in Honolulu, Hawaii. The military base is home to the 15th Airlift Wing, the Hawaii Air National Guard, and the Pacific Air Forces headquarters.

307

OLYMPIC AIR QUALITY QUESTIONABLE  

Science Journals Connector (OSTI)

OLYMPIC AIR QUALITY QUESTIONABLE ... Athletes GOING FOR GOLD worry about Beijings air ... Atmospheric chemists say the air quality during the Beijing Games literally rests on which direction the winds blow. ...

RACHEL PETKEWICH

2008-07-28T23:59:59.000Z

308

Air Quality and Pollution  

Science Journals Connector (OSTI)

Air quality refers to the physical, chemical, and biological characteristics of air, both in outside space and in enclosed ... other non?industrial working places, and residencies. Air pollution is the abnormal ...

Zoran Marmut

2008-01-01T23:59:59.000Z

309

Primary zone air proportioner  

DOE Patents [OSTI]

An air proportioner is provided for a liquid hydrocarbon fueled gas turbine of the type which is convertible to oil gas fuel and to coal gas fuel. The turbine includes a shell for enclosing the turbine, an air duct for venting air in said shell to a gasifier, and a fuel injector for injecting gasified fuel into the turbine. The air proportioner comprises a second air duct for venting air from the air duct for mixing with fuel from the gasifier. The air can be directly injected into the gas combustion basket along with the fuel from the injector or premixed with fuel from the gasifier prior to injection by the fuel injector.

Cleary, Edward N. G. (San Diego, CA)

1982-10-12T23:59:59.000Z

310

East Central Energy - Residential Energy Efficiency Rebate Program |  

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

East Central Energy - Residential Energy Efficiency Rebate Program East Central Energy - Residential Energy Efficiency Rebate Program East Central Energy - Residential Energy Efficiency Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Appliances & Electronics Heat Pumps Commercial Lighting Lighting Water Heating Program Info State Minnesota Program Type Utility Rebate Program Rebate Amount LEDs: $3/bulb (limit 3 bulbs) CFL Recycling: $0.50 per bulb Central AC: $30 - $330 Air-Source Heat Pump: $300 - $630 Heat Pump/AC Tune Up: $25 Refrigerator/Freezer (with recycling of old unit): $75 Ductless Air-Source Heat Pumps: $300 Geothermal Heat Pump: $400/ton HVAC ECM: $100 Storage Water Heating: $100 - $200 Storage Space Heating: $25/KW Provider East Central Energy

311

Central Versus Distributed Production  

Broader source: Energy.gov [DOE]

Central, semi-central, and distributed production facilities are expected to play a role in the evolution and long-term use of hydrogen as an energy carrier. The different resources and processes...

312

Thermal investigation of lithium-ion battery module with different cell arrangement structures and forced air-cooling strategies  

Science Journals Connector (OSTI)

Abstract Thermal management needs to be carefully considered in the lithium-ion battery module design to guarantee the temperature of batteries in operation within a narrow optimal range. This article firstly explores the thermal performance of battery module under different cell arrangement structures, which includes: 1נ24, 3נ8 and 5נ5 arrays rectangular arrangement, 19 cells hexagonal arrangement and 28 cells circular arrangement. In addition, air-cooling strategies are also investigated by installing the fans in the different locations of the battery module to improve the temperature uniformity. Factors that influence the cooling capability of forced air cooling are discussed based on the simulations. The three-dimensional computational fluid dynamics (CFD) method and lumped model of single cell have been applied in the simulation. The temperature distributions of batteries are quantitatively described based on different module patterns, fan locations as well as inter-cell distance, and the conclusions are arrived as follows: when the fan locates on top of the module, the best cooling performance is achieved; the most desired structure with forced air cooling is cubic arrangement concerning the cooling effect and cost, while hexagonal structure is optimal when focus on the space utilization of battery module. Besides, the optimized inter-cell distance in battery module structure has been recommended.

Tao Wang; K.J. Tseng; Jiyun Zhao; Zhongbao Wei

2014-01-01T23:59:59.000Z

313

Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy homes?  

E-Print Network [OSTI]

Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy-extreme weather conditions. #12;Proceedings of Healthy Buildings 2009 Paper 680 Thus, a central forced air

Siegel, Jeffrey

314

Air Pollution Spring 2010  

E-Print Network [OSTI]

and control. 6. Examine regional and global air pollution issues. Prerequisite: CHEM 113 and (MATH 261 or MATHATS 555 Air Pollution Spring 2010 T Th 11:00 ­ 12:15, NESB 101 Instructor: Prof. Sonia Kreidenweis an understanding of types and sources of air pollution. 2. Examine concentrations of air pollutants

315

SGP Central Facility  

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

Central Facility Central Facility SGP Related Links Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Fact Sheet Images Information for Guest Scientists Contacts SGP Central Facility The ARM Climate Research Facility deploys specialized remote sensing instruments in a fixed location at the site to gather atmospheric data of unprecedented quality, consistency, and completeness. More than 30 instrument clusters have been placed around the site; the central facility; and the boundary, intermediate, and extended facilities. The locations for the instruments were chosen so that the measurements reflect conditions

316

ARM - SGP Central Facility  

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

Central Facility Central Facility SGP Related Links Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Fact Sheet Images Information for Guest Scientists Contacts SGP Central Facility The ARM Climate Research Facility deploys specialized remote sensing instruments in a fixed location at the site to gather atmospheric data of unprecedented quality, consistency, and completeness. More than 30 instrument clusters have been placed around the site; the central facility; and the boundary, intermediate, and extended facilities. The locations for the instruments were chosen so that the measurements reflect conditions

317

Installed performance evaluation of an air turbo-rocket expander engine  

Science Journals Connector (OSTI)

Abstract The propulsion plant of a prospective supersonic cruise aircraft consists of an air turbo-rocket expander and a dual-mode ramjet. A comprehensive numerical model was constructed to examine the performance of the air turbo-rocket during the supersonic acceleration of the vehicle. The numerical model comprised a one-dimensional representation of the fluid paths through the dual-mode ramjet, the air turbo-rocket combustor, the regenerator and the airframe-integrated nozzle, whereas the turbomachinery and the air turbo-rocket bypass were included as zero-dimensional models. The intake operation was based on the results of time-averaged Euler simulations. A preliminary engine analysis revealed that the installation effects restricted significantly the operational envelope, which was subsequently extended bypassing the air turbo-rocket. Hence the engine was throttled varying the mixture ratio and the fan compression ratio. Nevertheless, the performance was optimal when the demand from the air turbo-rocket matched the intake air flow capture. The heat recovery across the regenerator was found critical for the operation of the turbomachinery at low speed. The transition of the air turbo-rocket to ramjet operation was identified at Mach 4.5. During this regime, the propulsion plant was rather insensitive to the mixture ratio and was throttled with the air turbo-rocket throat area.

V. Fernndez-Villac; G. Paniagua; J. Steelant

2014-01-01T23:59:59.000Z

318

East North Central Pa  

Gasoline and Diesel Fuel Update (EIA)

East East North Central Pa cif ic Contiguous Mountain West North Central West South Central Pacific Noncontiguous East South Central Sout h At lant ic Middle Atlantic New England 35. Average Price of Natural Gas Delivered to Consumers by Census Division, 1995-1996 (Dollars per Thousand Cubic Feet) Table Census Division Residential Commercial 1995 1996 1995 1996 New England ........................................................... 9.06 9.03 6.78 6.96 Middle Atlantic ......................................................... 7.75 8.00 6.04 6.57 East North Central ................................................... 5.05 5.44 4.57 4.94 West North Central .................................................. 4.97 5.54 4.08 4.71 South Atlantic........................................................... 6.89 7.50 5.33 6.14 East South Central...................................................

319

Proceedings of the International Symposium on Air Pollution and Climate Change Effects  

E-Print Network [OSTI]

on the effects of air pollution/climate change on forests; information on forest health in several CentralProceedings of the International Symposium on Air Pollution and Climate Change Effects on Forest of the international symposium on air pollution and climate change effects on forest ecosystems; 1996 February 5

Standiford, Richard B.

320

2014-10-27 Issuance: Test Procedure for Ceiling Fan Light Kits; Notice of Proposed Rulemaking  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register notice of proposed rulemaking regarding test procedures for ceiling fan light kits, as issued by the Deputy Assistant Secretary for Energy Efficiency on October 27, 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.

Note: This page contains sample records for the topic "fan central air" 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

2014-06-25 Issuance: Energy Conservation Standards for Residential Furnace Fans; Final Rule  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register final rule regarding energy conservation standards for furnace fans, as issued by the Assistant Secretary for Energy Efficiency and Renewable Energy on June 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.

322

Clean Cities: Central Oklahoma Clean Cities (Oklahoma City) coalition  

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

Central Oklahoma Clean Cities (Oklahoma City) Coalition Central Oklahoma Clean Cities (Oklahoma City) Coalition The Central Oklahoma Clean Cities (Oklahoma City) coalition works with vehicle fleets, fuel providers, community leaders, and other stakeholders to reduce petroleum use in transportation. Central Oklahoma Clean Cities (Oklahoma City) coalition Contact Information Yvonne Anderson 405-234-2264 yanderson@acogok.org Coalition Website Clean Cities Coordinator Yvonne Anderson Photo of Yvonne Anderson Yvonne Anderson has served as the Central Oklahoma Clean Cities Coordinator since October 1998. She is a Special Programs Officer at the Association of Central Oklahoma Governments (ACOG), a regional council of governments, where in addition to her Clean Cities functions she also manages ACOG's Public Fleet Conversion Grants Program and serves on the agency's Air

323

Centrals.PDF  

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

ER-B-00-01 ER-B-00-01 AUDIT REPORT CENTRAL SHOPS AT BROOKHAVEN NATIONAL LABORATORY MAY 2000 U.S. DEPARTMENT OF ENERGY OFFICE OF INSPECTOR GENERAL OFFICE OF AUDIT SERVICES DEPARTMENT OF ENERGY Washington, DC 20585 May 11, 2000 MEMORANDUM FOR THE MANAGER, CHICAGO OPERATIONS OFFICE FROM: Terry L. Brendlinger, Manager (Signed) Eastern Regional Audit Office Office of Inspector General SUBJECT: INFORMATION: Audit Report on "Central Shops at Brookhaven National Laboratory" BACKGROUND Brookhaven National Laboratory's (Brookhaven) Central Shops Division (Central Shops) provides support services for research and development programs and user facilities. The Department requires its management and operating contractors to evaluate, by performing a

324

Using ductwork to improve supply plenum temperature distribution in underfloor air distribution (UFAD) system  

E-Print Network [OSTI]

connected with ducts to fan coil units to minimize the heatthe interior zone, plus two fan coil units. Figure 8-2 showswas used for this work. FAN COIL UNITS PERIMETER Figure 8-3

Pasut, Wilmer

2011-01-01T23:59:59.000Z

325

Duplex-like structures in submarine fan channels, Ouachita Mountains, Arkansas  

SciTech Connect (OSTI)

Submarine fan channel sequences of the Jackfork Formation (Lower Pennsylvanian) at DeGray Dam section in the Ouachita Mountains, Arkansas, contain discrete units (10-75 cm thick) with moderately dipping (25/sup 0/-40/sup 0/), sigmoidal imbricate slices. Adjacent units with opposing imbricate slices are common. The sigmoidal structures are similar in geometry to a tectonic feature known as a duplex. A tectonic origin of sigmoidal structures, however, seems unlikely because opposing directions of imbrication in adjacent units would require an unrealistic tectonic movement history for the area. The authors propose that the Jackfork sigmoidal structures were formed by a process kinematically similar to that responsible for generating duplex structures. Unlike tectonic duplexes, however, the sigmoidal structures were formed by soft-sediment deformation of sand and mud layers as high-energy sediment gravity flows glided over these layers. Sediment gravity flows, responsible for forming the sigmoidal deformation, were probably generated by slumping of adjacent channel walls. Dip direction of sigmoidal slices is perpendicular to channel axes. Thus, recognition of sigmoidal deformation structures may be useful in inferring the trend of channels in ancient submarine fan complexes.

Shanmugam, G.; Moiola, R.J.; Sales, J.K.

1988-03-01T23:59:59.000Z

326

In situ measurement of noise of induced?draft fans in a power plant stack  

Science Journals Connector (OSTI)

Induced?draft fans are commonly the most annoying sources of community noise associated with fossil?fuel power plants. The low frequency tones generated by the fans are usually radiated to the community from the top of a tall stack. Measurements of the tone levels in the community are hampered by environmental effects such as strong wind and thermal gradients. Measurements within the flue gas ducting are therefore desirable. However the flue gas environment is hostile to microphones due to elevated temperatures particulates and the presence of gas flow. The interpretation of in?duct data is complicated by the possible effects of standing waves and cross modes in the duct and turbulence generated noise. The recent installation of a dissipative?reactive muffler in a coal?fired plant offered the opportunity to (1) investigate techniques for measuring noise in stacks (2) evaluate the performance of the muffler under operating conditions and (3) check the in?stack results against limited farfield data. Good agreement was obtained between reductions in tone levels measured in the stack and in the community.

A. R. Thompson; M. A. Theobald; Alex Simich

1979-01-01T23:59:59.000Z

327

Healthy Air Act (Maryland)  

Broader source: Energy.gov [DOE]

The Maryland Healthy Air Act was developed with the purpose of bringing Maryland into attainment with the National Ambient Air Quality Standards (NAAQS) for ozone and fine particulate matter by the...

328

Air and Water Pollution  

Science Journals Connector (OSTI)

Air Pollution.... Many pollutants enter our bodies through the air we breathe at 13,000l/day ... to quantitatively understand the basic environmental physics of pollution. This chapter covers the foll...

David Hafemeister

2014-01-01T23:59:59.000Z

329

Aesculap, Inc. Air Products  

E-Print Network [OSTI]

Aesculap, Inc. Air Products Air Products Foundation Alaric Compliance Services, LLC Alvin H. Butz & Herger, Inc. Sodexo Campus Services Sodexo Inc. and Affiliates Stupp Bros., Inc. Sugarbush Products, Inc

Napier, Terrence

330

Toward Green Systems for Cleanrooms: Energy Efficient Fan-filter Units Ming-Shan Jeng, Industrial Technology Research Institute, msjeng@itri.org.tw  

E-Print Network [OSTI]

Toward Green Systems for Cleanrooms: Energy Efficient Fan-filter Units Ming-Shan Jeng, Industrial results of laboratory-measured performance of fan-filter units (FFUs) used for cleanrooms. A total for many cleanroom applications. ) 2004 Semiconductor Equipment and Materials International Keywords

331

Minimize Compressed Air Leaks  

Broader source: Energy.gov [DOE]

This tip sheet outlines a strategy for compressed air leak detection and provides a formula for cost savings calculations.

332

DOE-HDBK-1169-2003; DOE Handbook Nuclear Air Cleaning Handbook  

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

5-1 5-1 CHAPTER 5 EXTERNAL COMPONENTS 5.1 Introduction External components of an air cleaning system include fans, ductwork, dampers, louvers, stacks, instruments, and other miscellaneous accessories that are associated with the movement, control, conveying, and monitoring of the air or gas flow. This chapter contains information on the design, fabrication, materials, and codes and standards requirements/considerations for air cleaning system external components for nuclear facilities. Additional information can be found in Chapters 2 and 4, as well as ASME Code AG-1. 1 Use of AG-1 requirements is mandatory for Safety Class and Safety Significant Systems and can be used as guidance for lower systems. 5.2 Ductwork This section will address the functional design, mechanical design, materials, coatings, supports, acoustic

333

Air Products effective way  

E-Print Network [OSTI]

PE O A e s a b O T A O ENNST Overview Air Products effective way standard me Departm Shipping has recently y of shipping eans. Air Pro ontainer that es of this pro onduct mark eep accelera eep the cost tilize widely a earch and m m visited Air er needs wer model was cr m approache ms

Demirel, Melik C.

334

Assessment of Indoor Air Quality Benefits and Energy Costs of Mechanical Ventilation  

SciTech Connect (OSTI)

Intake of chemical air pollutants in residences represents an important and substantial health hazard. Sealing homes to reduce air infiltration can save space conditioning energy, but can also increase indoor pollutant concentrations. Mechanical ventilation ensures a minimum amount of outdoor airflow that helps reduce concentrations of indoor emitted pollutants while requiring some energy for fan(s) and thermal conditioning of the added airflow. This work demonstrates a physics based, data driven modeling framework for comparing the costs and benefits of whole-house mechanical ventilation and applied the framework to new California homes. The results indicate that, on a population basis, the health benefits from reduced exposure to indoor pollutants in New California homes are worth the energy costs of adding mechanical ventilation as specified by ASHRAE Standard 62.2.This study determines the health burden for a subset of pollutants in indoor air and the costs and benefits of ASHRAE's mechanical ventilation standard (62.2) for new California homes. Results indicate that, on a population basis, the health benefits of new home mechanical ventilation justify the energy costs.

Logue, J.M.; Price, P.N.; Sherman, M.H.; Singer, B.C.

2011-07-01T23:59:59.000Z

335

Performance of unglazed solar ventilation air pre-heaters for broiler barns  

Science Journals Connector (OSTI)

Solar radiation is an interesting heat source for applications requiring a limited amount of energy, such as pre-heating cold fresh air used in venting livestock barns. The objective of this study was to evaluate the energy recovery efficiency of a solar air pre-heater consisting of an unglazed perforated black corrugated siding where the incoming fresh ventilation air picks up heat from its face and back. Installed on the southeast wall of two broiler barns located 40km east of Montreal, Canada, the performance of solar air pre-heaters was monitored over 2years. Sensors inside the barns monitored the temperature of the ambient air, that pre-heated by the solar collector and that exhausted by one of the three operating fans. An on-site weather station measured ambient air temperature, wind direction and velocity and radiation energy absorbed on a vertical plane parallel to the unglazed solar air pre-heaters. The measured vertical solar radiation value was used to evaluate the heat recovery efficiency of the unglazed solar air pre-heaters. Using data from the Varennes Environment Canada weather station located 30km northwest, the solar sensors were found to measure the absorbed solar radiation with a maximum error of 7%, including differences in exterior air moisture. Unglazed, the efficiency of the solar air pre-heaters reached 65% for wind velocities under 2m/s, but dropped below 25% for wind velocities exceeding 7m/s. Nevertheless, the unglazed solar air pre-heaters were able to reduce the heating load especially in March of both years. Over a period starting in November and ending in March, the solar air heaters recovered an energy value equivalent to an annual return on investment of 4.7%.

Sbastien Cordeau; Suzelle Barrington

2011-01-01T23:59:59.000Z

336

Underfloor air distribution (UFAD) cost study: analysis of first cost tradeoffs in UFAD systems  

E-Print Network [OSTI]

is served by VAV fan coil units (FCU) with variable speedwith regard to terminal fan coil unit costs. Since the model

Webster, Tom; Benedek, Corinne; Bauman, Fred

2006-01-01T23:59:59.000Z

337

Air-Con International: Order (2010-SE-0301) | Department of Energy  

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

Air-Con International: Order (2010-SE-0301) Air-Con International: Order (2010-SE-0301) Air-Con International: Order (2010-SE-0301) November 17, 2010 DOE ordered Air-Con International, Inc. to pay a civil penalty of $10,000 after finding Air-Con had distributed in commerce in the U.S. central air conditioning units that were not in conformity with the applicable energy conservation standards. DOE also found that, while some units were exported, none of the units were properly marked as imports intended for exportation. The Order adopted a Compromise Agreement, which reflected settlement terms between DOE and Air-Con. Air-Con International: Order (2010-SE-0301) More Documents & Publications Air-Con International: Order (2010-SE-0301) Air-Con International: Noncompliance Determination and Proposed Penalty

338

Determining the Right Air Quality for Your Compressed Air System  

Broader source: Energy.gov [DOE]

This tip sheet outlines the main factors for determining the right air quality for compressed air systems.

339

YMGI Through-the-Wall Air Conditioner Determined Noncompliant With Energy  

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

YMGI Through-the-Wall Air Conditioner Determined Noncompliant With YMGI Through-the-Wall Air Conditioner Determined Noncompliant With Energy Efficiency Standard YMGI Through-the-Wall Air Conditioner Determined Noncompliant With Energy Efficiency Standard October 11, 2012 - 4:10pm Addthis The U.S. Department of Energy's Office of Enforcement issued a Notice of Noncompliance Determination (Notice) on October 11, 2012, to YMGI Group, LLC (YMGI) regarding through-the-wall split system central air conditioner basic model TTWC-18K-31B. DOE enforcement testing revealed that this model operates at a Seasonal Energy Efficiency Rating (SEER) of 8.3. The current federal standard requires that through-the-wall split system central air conditioners operate at a SEER of 12 or greater. Addthis Related Articles Four Central Air Conditioners Determined Noncompliant With Energy

340

YMGI Through-the-Wall Air Conditioner Determined Noncompliant With Energy  

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

YMGI Through-the-Wall Air Conditioner Determined Noncompliant With YMGI Through-the-Wall Air Conditioner Determined Noncompliant With Energy Efficiency Standard YMGI Through-the-Wall Air Conditioner Determined Noncompliant With Energy Efficiency Standard October 11, 2012 - 4:10pm Addthis The U.S. Department of Energy's Office of Enforcement issued a Notice of Noncompliance Determination (Notice) on October 11, 2012, to YMGI Group, LLC (YMGI) regarding through-the-wall split system central air conditioner basic model TTWC-18K-31B. DOE enforcement testing revealed that this model operates at a Seasonal Energy Efficiency Rating (SEER) of 8.3. The current federal standard requires that through-the-wall split system central air conditioners operate at a SEER of 12 or greater. Addthis Related Articles Four Central Air Conditioners Determined Noncompliant With Energy

Note: This page contains sample records for the topic "fan central air" 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

Air-Con International: Noncompliance Determination and Proposed Penalty  

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

Con International: Noncompliance Determination and Proposed Con International: Noncompliance Determination and Proposed Penalty (2010-SE-0301) Air-Con International: Noncompliance Determination and Proposed Penalty (2010-SE-0301) September 20, 2010 DOE issued a Notice of Noncompliance Determination to Air-Con International finding that a variety of central air conditioners and air conditioning heat pumps distributed under the Air-Con private label do not comport with the energy conservation standards. DOE also alleged in a Notice of Proposed Civil Penalty that Air-Con imported and distributed the noncompliant products in the U.S. Federal law subjects manufacturers and private labelers to civil penalties if those parties distribute in the U.S. products that do not meet applicable energy conservation standards. This

342

y 1000km of high resolution sleeve-gun array transects on the North Sza Fan, located at tbe mouth orwegian Channel, reveal three domina tyles of sedimentation within a thick  

E-Print Network [OSTI]

y 1000km of high resolution sleeve-gun array transects on the North Sza Fan, located at tbe mouth the lution data across the fan other than conventional he seismic source was an arra nstruments 40 in3 sleeve-guns along the fan axis. These data were shot with the same sleeve-gun array but recorded digitally via a 144

343

Caribbean basin framework, 3: Southern Central America and Colombian basin  

SciTech Connect (OSTI)

The authors recognize three basin-forming periods in southern Central America (Panama, Costa Rica, southern Nicaragua) that they attempt to correlate with events in the Colombian basin (Bowland, 1984): (1) Early-Late Cretaceous island arc formation and growth of the Central American island arc and Late Cretaceous formation of the Colombian basin oceanic plateau. During latest Cretaceous time, pelagic carbonate sediments blanketed the Central American island arc in Panama and Costa Rica and elevated blocks on the Colombian basin oceanic plateau; (2) middle Eocene-middle Miocene island arc uplift and erosion. During this interval, influx of distal terrigenous turbidites in most areas of Panama, Costa Rica, and the Colombian basin marks the uplift and erosion of the Central American island arc. In the Colombian basin, turbidites fill in basement relief and accumulate to thicknesses up to 2 km in the deepest part of the basin. In Costa Rica, sedimentation was concentrated in fore-arc (Terraba) and back-arc (El Limon) basins; (3) late Miocene-Recent accelerated uplift and erosion of segments of the Central American arc. Influx of proximal terrigenous turbidites and alluvial fans in most areas of Panama, Costa Rica, and the Colombian basin marks collision of the Panama arc with the South American continent (late Miocene early Pliocene) and collision of the Cocos Ridge with the Costa Rican arc (late Pleistocene). The Cocos Ridge collision inverted the Terraba and El Limon basins. The Panama arc collision produced northeast-striking left-lateral strike-slip faults and fault-related basins throughout Panama as Panama moved northwest over the Colombian basin.

Kolarsky, R.A.; Mann, P. (Univ. of Texas, Austin (United States))

1991-03-01T23:59:59.000Z

344

Thin Air Breathing  

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

Thin Air Breathing Thin Air Breathing Name: Amy Location: N/A Country: N/A Date: N/A Question: Why is it hard to breathe in thin air? What health dangers do mountain climbers face at high altitudes? Replies: Among the obvious dangers of losing ones footing, the oxygen available in the air is considerable less at higher altitudes. If I recall correctly, 21% of the atmosphere at standard temperature and pressure at sea level is composed of oxygen. This is less at higher altitudes. One can lose consciousness and even die in an oxygen deficient environment with changes from oxygen content to lower than 19.5%. This can unfortunate effect can occur within minutes. Dr. Myron The air is not really thin at high altitudes. The problem is that air pressure is lower. As altitude increases, air pressure decreases. In order for your lungs to fill with air, the air pressure in your lungs has to be less than the pressure of the air outside your lungs. Air moves from areas of higher pressure to lower pressure. As your diaphragm (the muscle that separates your chest cavity from your abdominal cavity) moves downward, the size of your chest cavity increases. This decreases the pressure in your chest and air flows in. When the diaphragm is up, it puts pressure on the chest cavity and the pressure in the lungs is greater than outside the lungs. Air flows out. This is an example of Boyle's Law. The movement of the diaphragm is controlled by the brainstem. Anyway-the reason that it is harder for some people to breathe at higher altitudes is that the air pressure differences aren't as great between the inside of the lungs and outside.

345

Study of the Effects of Ambient Conditions Upon the Performance of Fan Powered, Infrared Natural Gas Burners  

SciTech Connect (OSTI)

The objective of this investigation was to characterize the operation of a fan-powered, infrared burner (IR burner) at various gas compositions and ambient conditions, develop numerical model to simulate the burner performances, and provide design guidelines for appliances containing PIR burners for satisfactory performance.

Clark Atlanta University

2002-12-02T23:59:59.000Z

346

Stimulated Emission from a Single Excited Atom in a Waveguide Eden Rephaeli1,* and Shanhui Fan2,  

E-Print Network [OSTI]

Stimulated Emission from a Single Excited Atom in a Waveguide Eden Rephaeli1,* and Shanhui Fan2, 1; published 3 April 2012) We study stimulated emission from an excited two-level atom coupled to a waveguide by the atom, plays a very important role in stimulated emission. Additionally, the temporal duration

Fan, Shanhui

347

New Energy Efficiency Standards for Furnace Fans to Reduce Carbon Pollution, Help Americans Save on Energy Bills  

Broader source: Energy.gov [DOE]

WASHINGTON As part of President Obamas Climate Action Plan, the Energy Department today announced a new energy efficiency standard for furnace fans, the latest of eight finalized standards and nine proposed standards issued since the Climate Action Plan was announced last year.

348

Towards a syntactic signature for domain models: proposed descriptive metrics for visualizing the entity fan-out frequency distribution  

Science Journals Connector (OSTI)

The main objective of this paper is to find a minimal set of measures that allow the immediate, intuitive characterisation and visualization of the syntactic structure of models covering a particular application domain. The measures are validated ... Keywords: case measures, enterprise models, entity fan-out distribution, metrics, model analysis, model complexity, modelling

Jean-Paul van Belle

2002-09-01T23:59:59.000Z

349

Permanent Magnet Assisted Synchronous Reluctance Machine (PMa-SynRM) Design and Performance Analysis for Fan and Pump Applications  

E-Print Network [OSTI]

...................................................................................................... 47 Fig 3-12: Reluctance torque generated by each rotor at rated current and maximum torque angle. ................................................................................... 48 xi Page Fig 3-13: FEA analysis field output on the PMa... PERMANENT MAGNET ASSISTED SYNCHRONOUS RELUCTANCE MACHINE (PMA-SYNRM) DESIGN AND PERFORMANCE ANALYSIS FOR FAN AND PUMP APPLICATIONS A Dissertation by ROBERT VARTANIAN Submitted to the Office of Graduate and Professional Studies...

Vartanian, Robert

2014-08-13T23:59:59.000Z

350

Gas-surface scattering with multiple collisions in the physisorption potential well Guoqing Fan and J. R. Manson  

E-Print Network [OSTI]

Gas-surface scattering with multiple collisions in the physisorption potential well Guoqing Fan The problem of gas-surface collisions is developed in terms of a theoretical formalism that allows calcula gas distributions are considered, a monoenergetic incident beam and an equilibrium gas appropriate

Manson, Joseph R.

351

Near-infrared double negative metamaterials Shuang Zhang, Wenjun Fan, K. J. Malloy and S. R. J. Brueck  

E-Print Network [OSTI]

Near-infrared double negative metamaterials Shuang Zhang, Wenjun Fan, K. J. Malloy and S. R. J and negative over an overlapping near-infrared wavelength range resulting in a low loss negative. Brueck, "Demonstration of Near-Infrared Negative-Index Materials," Postdeadline Paper at OSA Topical

New Mexico, University of

352

Influence of Tip Clearance and Inlet Flow Distortion on Ducted Fan Performance in VTOL UAVs Graduate Research Assistant  

E-Print Network [OSTI]

(Pa) CpTotal = Total pressure coefficient = Rotational speed (radian/sec) r = Radial distance measured military tasks, they can continuously transmit surveillance data and act as a relay station. Although to study the flow characteristics of ducted fans. Abrego and Bulaga [1] performed wind tunnel tests

Camci, Cengiz

353

Performance Optimization of a Fan System- Overcoming Impacts of Modified Design Criteria Due to Regulatory Requirements and Changed Operating Conditions  

E-Print Network [OSTI]

that was applied to address fan inefficiency. Energy savings from optimizing the system are estimated to be 338 kW, nearly half of the original measured input power of 678 kW. The project is currently being implemented and will have a payback period of less than 8...

Wroblewski, R. G.; Preis, F.; Smith, R.

354

Preliminary Analysis of U.S. Residential Air Leakage Database v.2011  

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

Preliminary Analysis of U.S. Residential Air Leakage Database v.2011 Preliminary Analysis of U.S. Residential Air Leakage Database v.2011 Title Preliminary Analysis of U.S. Residential Air Leakage Database v.2011 Publication Type Conference Proceedings LBNL Report Number LBNL-5552E Year of Publication 2011 Authors Chan, Wanyu R., and Max H. Sherman Conference Name 2011 32nd AIVC Conference and 1st TightVent Conference: Towards Optimal Airtightness Performance Date Published 10/2011 Conference Location Brussels, Belgium. Keywords air leakage, blower door, fan pressurization measurements, infiltration Abstract Air leakage and other diagnostic measurements are being added to LBNL's Residential Diagnostics Database (ResDB). We describe the sources of data that amount to more than 80,000 blower door measurements. We present summary statistics of selected parameters, such as floor area and year built. We compare the house characteristics of new additions to ResDB with prior data. Distributions of normalized leakage are computed for income-qualified homes that were weatherized, homes that were participants of various residential energy efficiency programs, and new constructions built between 2006 and 2011. Further work is underway to relate air leakage to house characteristics utilizing the full database for predictive modeling of air infiltration and to support studies of energy efficiency. Current status of ResDB can be found at http://resdb.lbl.gov/.

355

List of Room Air Conditioners Incentives | Open Energy Information  

Open Energy Info (EERE)

Conditioners Incentives Conditioners Incentives Jump to: navigation, search The following contains the list of 112 Room Air Conditioners Incentives. CSV (rows 1 - 112) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP Ohio - Commercial New Construction Energy Efficiency Rebate Program (Ohio) Utility Rebate Program Ohio Commercial Industrial Local Government Municipal Utility Nonprofit Schools State Government Central Air conditioners Chillers Comprehensive Measures/Whole Building Custom/Others pending approval Energy Mgmt. Systems/Building Controls Heat pumps Lighting Lighting Controls/Sensors Motor VFDs Motors Water Heaters Commercial Cooking Equipment Commercial Refrigeration Equipment Room Air Conditioners Yes Alexandria Light and Power - Residential Energy Efficiency Rebate Program (Minnesota) Utility Rebate Program Minnesota Residential Central Air conditioners

356

Laboratory evaluation of fan/filter units' aerodynamic and energy performance  

SciTech Connect (OSTI)

The paper discusses the benefits of having a consistent testing method to characterize aerodynamic and energy performance of FFUs. It presents evaluation methods of laboratory-measured performance of ten relatively new, 1220 mm x 610 mm (or 4 ft x 2 ft) fan-filter units (FFUs), and includes results of a set of relevant metrics such as energy performance indices (EPI) based upon the sample FFUs tested. This paper concludes that there are variations in FFUs' performance, and that using a consistent testing and evaluation method can generate compatible and comparable FFU performance information. The paper also suggests that benefits and opportunities exist for our method of testing FFU energy performance to be integrated in future recommended practices.

Xu, Tengfang; Jeng, Ming-Shan

2004-07-27T23:59:59.000Z

357

An optical fan for light beams for high-precision optical measurements and optical switching  

E-Print Network [OSTI]

The polarization and orbital angular momentum properties of light are of great importance in optical science and technology in the fields of high precision optical measurements and high capacity and high speed optical communications. Here we show, a totally new method, based on a combination of these two properties and using the thermal dispersion and electro-optical effect of birefringent crystals, the construction of a simple and robust scheme to rotate a light beam like a fan. Using a computer-based digital image processing technique, we determine the temperature and the thermal dispersion difference of the crystal with high resolution. We also use the rotation phenomenon to realize thermo-optic and electro-optic switches. The basic operating principles for measurement and switching processes are presented in detail. The methods developed here will have wide practical applicability in various fields, including remote sensing, materials science and optical communication networks.

Zhou, Zhi-Yuan; Ding, Dong-Sheng; Jiang, Yun-Kun; Zhang, Wei; Shi, Shuai; Shi, Bao-Sen; Guo, Guang-Can

2014-01-01T23:59:59.000Z

358

An optical fan for light beams for high-precision optical measurements and optical switching  

E-Print Network [OSTI]

The polarization and orbital angular momentum properties of light are of great importance in optical science and technology in the fields of high precision optical measurements and high capacity and high speed optical communications. Here we show, a totally new method, based on a combination of these two properties and using the thermal dispersion and electro-optical effect of birefringent crystals, the construction of a simple and robust scheme to rotate a light beam like a fan. Using a computer-based digital image processing technique, we determine the temperature and the thermal dispersion difference of the crystal with high resolution. We also use the rotation phenomenon to realize thermo-optic and electro-optic switches. The basic operating principles for measurement and switching processes are presented in detail. The methods developed here will have wide practical applicability in various fields, including remote sensing, materials science and optical communication networks.

Zhi-Yuan Zhou; Yan Li; Dong-Sheng Ding; Yun-Kun Jiang; Wei Zhang; Shuai Shi; Bao-Sen Shi; Guang-Can Guo

2014-05-08T23:59:59.000Z

359

central | OpenEI  

Open Energy Info (EERE)

central central Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 87, and contains only the reference case. The data is broken down into electric power sector, cumulative planned additions,cumulative unplanned additions,cumulative retirements, end-use sector, electricity sales, net energy for load, generation by fuel type and price by service category. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO central EIA Electric power projections Data application/vnd.ms-excel icon AEO2011: Electric Power Projections for EMM Region - SERC Reliability Corporation / Central- Reference Case (xls, 259.1 KiB)

360

Basin-floor fans in the North Sea: Sequence stratigraphic models vs. sedimentary facies  

SciTech Connect (OSTI)

Examination of nearly 12,000 feet (3658m) of conventional core from Paleogene and Cretaceous deep-water sandstone reservoirs cored in 50 wells in 10 different areas or fields in the North Sea and adjacent regions reveals that these reservoirs are predominantly composed of mass-transport deposits, mainly sandy slumps and sandy debris flows. Sedimentary features indicating slump and debris-flow origin include sand units with sharp upper contacts; slump folds; discordant, steeply dipping layers (up to 60{degrees}); glide planes; shear zones; brecciated clasts; clastic injections; floating mudstone clasts; planar clast fabric; inverse grading of clasts; and moderate-to-high matrix content (5-30%). This model predicts that basin-floor fans are predominantly composed of sand-rich turbidites with laterally extensive, sheetlike geometries. However, calibration of sedimentary facies in our long (400-700 feet) cores with seismic and wire-line-log signatures through several of these basin-floor fans (including the Gryphon-Forth, Frigg, and Faeroe areas) shows that these features are actually composed almost exclusively of mass-transport deposits consisting mainly of slumps and debris flows. Distinguishing deposits of mass-transport processes, such as debris flows, from those of turbidity currents has important implications for predicting reservoir geometry. Debris flows, which have plastic flow rheology, can form discontinuous, disconnected sand bodies that are harder to delineate and less economical to develop than deposits of fluidal turbidity currents, which potentially produce more laterally continuous, interconnected sand bodies. Process sedimentological interpretation of conventional core is commonly critical for determining the true origin and distribution of reservoir sands.

Shanmugam, G.; Bloch, R.B. [Mobil Research and Development Corp., Dallas, TX (United States); Mitchell, S.M. [Mobil Exploration and Producing US, Inc., Dallas, TX (United States); Beamish, G.W.J.; Shields, K.E. [Mobil North Sea Ltd., London (United Kingdom); Hodgkinson, R.J.; Straume, T.; Syvertsen, S.E. [Mobil Exploration Norway, Inc., Stavanger (Norway); Damuth, J.E. [Univ. of Texas, Arlington, TX (United States)

1995-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "fan central air" 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

Analysis of air leakage measurements of US houses  

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

Buildings 66 (2013) 616-625 Buildings 66 (2013) 616-625 Contents lists available at ScienceDirect Energy and Buildings j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / e n b u i l d Analysis of air leakage measurements of US houses Wanyu R. Chan ∗ , Jeffrey Joh, Max H. Sherman Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, One Cyclotron Road, Mailstop 90R3058, Berkeley, CA 94720, USA a r t i c l e i n f o Article history: Received 8 November 2012 Received in revised form 4 March 2013 Accepted 16 July 2013 Keywords: Blower door Fan pressurization test Normalized leakage Air infiltration Building envelope airtightness a b s t r a c t Building envelope airtightness is important for residential energy use, occupant health and comfort. We analyzed the air leakage measurements of 134,000 single-family detached homes in US, using normalized

362

Underwater and in-air sounds from a small hovercraft  

Science Journals Connector (OSTI)

Underwater and in-air recordings were made from a boat anchored near Prudhoe Bay Alaska while a Griffon 2000TD hovercraft drove by at or near full power on four passes. At the closest point of approach (CPA 6.5 m ) underwater broadband ( 10 10 000 Hz ) levels reached 133 and 131 dB re : 1 ? Pa at depths of 1 and 7 m respectively. In-air unweighted and A-weighted broadband ( 10 10 000 Hz ) levels reached 104 and 97 dB re : 20 ? Pa respectively. The hovercraft produced sound at a wide range of frequencies. Both underwater and in air the largest spectral peak was near 87 Hz which corresponded to the blade rate of the thrust propeller. In addition the spectral composition included several harmonics of this frequency. The shaft or blade rate of the lift fan was barely detectable underwater despite its proximity to the water. The hovercraft was considerably quieter underwater than similar-sized conventional vessels and may be an attractive alternative when there is concern over underwater sounds.

Susanna B. Blackwell; Charles R. Greene Jr.

2005-01-01T23:59:59.000Z

363

Air Tightness of New U.S. Houses: A Preliminary Report  

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

Tightness of New U.S. Houses: A Preliminary Report Tightness of New U.S. Houses: A Preliminary Report Title Air Tightness of New U.S. Houses: A Preliminary Report Publication Type Report LBNL Report Number LBNL-48671 Year of Publication 2002 Authors Sherman, Max H., and Nance Matson Abstract Most dwellings in the United States are ventilated primarily through leaks in the building shell (i.e., infiltration) rather than by whole-house mechanical ventilation systems. Consequently, quantification of envelope air-tightness is critical to determining how much energy is being lost through infiltration and how much infiltration is contributing toward ventilation requirements. Envelope air tightness and air leakage can be determined from fan pressurization measurements with a blower door. Tens of thousands of unique fan pressurization measurements have been made of U.S. dwellings over the past decades. LBNL has collected the available data on residential infiltration into its Residential Diagnostics Database, with support from the U.S. Department of Energy. This report documents the envelope air leakage section of the LBNL database, with particular emphasis on new construction. The work reported here is an update of similar efforts carried out a decade ago, which used available data largely focused on the housing stock, rather than on new construction. The current effort emphasizes shell tightness measurements made on houses soon after they are built. These newer data come from over two dozen datasets, including over 73,000 measurements spread throughout a majority of the U.S. Roughly one-third of the measurements are for houses identified as energy-efficient through participation in a government or utility program. As a result, the characteristics reported here provide a quantitative estimate of the impact that energy-efficiency programs have on envelope tightness in the US, as well as on trends in construction.

364

Environmental Quality: Air (Louisiana)  

Broader source: Energy.gov [DOE]

The Department of Environmental Quality regulates air quality in Louisiana. The Department has an established a fee system for funding the monitoring, investigation and other activities required...

365

Air-Quality Regulations  

Science Journals Connector (OSTI)

n...Federal, state and/or local regulations constructed for the purpose of protecting air quality, e.g., low volatile organic compounds...

Jan W. Gooch

2011-01-01T23:59:59.000Z

366

Air-quality regulations  

Science Journals Connector (OSTI)

n....Federal, state and/or local regulations constructed for the purpose of protecting air quality, e.g., low volatile organic compounds...

2007-01-01T23:59:59.000Z

367

Central Ferry-Lower Monumental  

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

Projects Spacer Damper Replacement Program Wind Projects Central Ferry-Lower Monumental BPA will build a new 500-kilovolt (kV) transmission line from BPA's Central Ferry...

368

Air Cooling for High Temperature Power Electronics (Presentation)  

SciTech Connect (OSTI)

Current emphasis on developing high-temperature power electronics, including wide-bandgap materials such as silicon carbide and gallium nitride, increases the opportunity for a completely air-cooled inverter at higher powers. This removes the liquid cooling system for the inverter, saving weight and volume on the liquid-to-air heat exchanger, coolant lines, pumps, and coolant, replacing them with just a fan and air supply ducting. We investigate the potential for an air-cooled heat exchanger from a component and systems-level approach to meet specific power and power density targets. A proposed baseline air-cooled heat exchanger design that does not meet those targets was optimized using a parametric computational fluid dynamics analysis, examining the effects of heat exchanger geometry and device location, fixing the device heat dissipation and maximum junction temperature. The CFD results were extrapolated to a full inverter, including casing, capacitor, bus bar, gate driver, and control board component weights and volumes. Surrogate ducting was tested to understand the pressure drop and subsequent system parasitic load. Geometries that met targets with acceptable loads on the system were down-selected for experimentation. Nine baseline configuration modules dissipated the target heat dissipation, but fell below specific power and power density targets. Six optimized configuration modules dissipated the target heat load, exceeding the specific power and power density targets. By maintaining the same 175 degrees C maximum junction temperature, an optimized heat exchanger design and higher device heat fluxes allowed a reduction in the number of modules required, increasing specific power and power density while still maintaining the inverter power.

Waye, S.; Musselman, M.; King, C.

2014-09-01T23:59:59.000Z

369

UVM Central Heating & Cooling Plant Annual Maintenance Shutdown 2013 Affected Buildings  

E-Print Network [OSTI]

UVM Central Heating & Cooling Plant Annual Maintenance Shutdown 2013 Affected Buildings Sunday 19 heating, hot water and critical air conditioning > NO CAGE WASHING > NO AUTOCLAVES > Given Boiler Plant will be in operation to provide heating, hot water and critical air conditioning > NO CAGE WASHING > NO AUTOCLAVES

Hayden, Nancy J.

370

CENTRAL PLATEAU REMEDIATION  

SciTech Connect (OSTI)

A systematic approach to closure planning is being implemented at the Hanford Site's Central Plateau to help achieve the goal of closure by the year 2035. The overall objective of Central Plateau remediation is to protect human health and the environment from the significant quantity of contaminated material that resulted from decades of plutonium production in support of the nation's defense. This goal will be achieved either by removing contaminants or placing the residual contaminated materials in a secure configuration that minimizes further migration to the groundwater and reduces the potential for inadvertent intrusion into contaminated sites. The approach to Central Plateau cleanup used three key concepts--closure zones, closure elements, and closure process steps--to create an organized picture of actions required to complete remediation. These actions were merged with logic ties, constraints, and required resources to produce an integrated time-phased schedule and cost profile for Central Plateau closure. Programmatic risks associated with implementation of Central Plateau closure were identified and analyzed. Actions to mitigate the most significant risks are underway while high priority remediation projects continue to make progress.

ROMINE, L.D.

2006-02-01T23:59:59.000Z

371

A Centrality Detector Concept  

E-Print Network [OSTI]

The nucleus-nucleus impact parameter and collision geometry of a heavy ion collision are typically characterized by assigning a collision "centrality". In all present heavy ion experiments centrality is measured indirectly, by detecting the number of particles or the energy of the particles produced in the interactions, typically at high rapidity. Centrality parameters are associated to the measured detector response using the Glauber model. This approach suffers from systematic uncertainties related to the assumptions about the particle production mechanism and limitations of the Glauber model. In the collider based experiments there is a unique possibility to measure centrality parameters by registering spectator fragments remaining from the collision. This approach does not require model assumptions and relies on the fact that spectators and participants are related via the total number of nucleons in the colliding species. This article describes the concept of the centrality detector for heavy ion experiment, which measures the total mass number of all fragments by measuring their deflection in the magnetic field of the collider elements.

Sourav Tarafdar; Zvi Citron; Alexander Milov

2014-06-07T23:59:59.000Z

372

Video Lab -NOAA Central Library NOAA Central Library  

E-Print Network [OSTI]

2014 Video Lab - NOAA Central Library NOAA Central Library 1315 East West Highway, SSMC3, 2nd Floor Silver Spring, MD 20910 www.lib.noaa.gov #12;NOAA Central Library Video Lab The NOAA Central Library Video Lab is available to all NOAA scientists for their business related media work, including digital

373

International MODIS and AIRS processing package: AIRS products and applications  

E-Print Network [OSTI]

International MODIS and AIRS processing package: AIRS products and applications Elisabeth Weisz presented and discussed in this paper demonstrate that the IMAPP AIRS retrieval product is rigorously parameters from the operational AIRS L2 product and data from other instruments. Keywords: AIRS, IMAPP

Li, Jun

374

Clean air act and National Ambient Air Quality Standards (NAAQS)  

E-Print Network [OSTI]

Clean air act and National Ambient Air Quality Standards (NAAQS) Ozone: Sources/Environmental Effects Particulates (PM): Sources/Environmental Effects #12;National Ambient Air Quality Standards (NAAQS) The Clean Air Act requires EPA to set National Ambient Air Quality Standards for pollutants considered

Weber, Rodney

375

RoomZoner: Occupancy-based Room-Level Zoning of a Centralized HVAC System  

E-Print Network [OSTI]

RoomZoner: Occupancy-based Room-Level Zoning of a Centralized HVAC System Tamim Sookoor & Kamin. In this paper we present a CPS that enables a centralized Heating, Ventila- tion, and Air Conditioning (HVAC application due to residential HVAC systems ac- counting for over 15% of all U.S. energy usage, making it one

Whitehouse, Kamin

376

Air-Cooled Condensers in Next-Generation Conversion Systems Geothermal Lab  

Open Energy Info (EERE)

Air-Cooled Condensers in Next-Generation Conversion Systems Geothermal Lab Air-Cooled Condensers in Next-Generation Conversion Systems Geothermal Lab Call Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Air-Cooled Condensers in Next-Generation Conversion Systems Project Type / Topic 1 Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies Project Type / Topic 2 Air-Cooling Project Description As the geothermal industry moves to use geothermal resources that are more expensive to develop, there will be increased incentive to use more efficient power plants. Because of increasing demand on finite supplies of water, this next generation of more efficient plants will likely need to reject heat sensibly to the ambient (air-cooling). This will be especially true in western states having higher grade Enhanced Geothermal Systems (EGS) resources, as well as most hydrothermal resources. If one had a choice, an evaporative heat rejection system would be selected because it would provide both cost and performance advantages. The evaporative system, however, consumes a significant amount of water during heat rejection that would require makeup. Though they use no water, air-cooling systems have higher capital costs, reduced power output (heat is rejected at a higher temperature), lower power sales due to higher parasitics (fan power), and greater variability in power output (because of large variation in the dry-bulb temperature).

377

Centralized Procurement Program  

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

Centralized Procurement Program What's New Who to Contact Current Products BOAs MOC Integrated Team Program Elements Future Products Welcome to the Carlsbad Field Office’s (CBFO) Centralized Procurement Program (CPP) Web Page. The purpose of the Centralized Procurement Program is to provide a standardized, economical system of acquisition and distribution of common or critical transuranic (TRU) waste products. The program is available for use by DOE contractors. The program is designed to allow user sites to procure products manufactured to standardized quality, procurement, and engineering requirements. The WIPP Management & Operation Contractor (MOC), Washington TRU Solutions (WTS), administers the program. WTS is the design authority for all products currently offered in the program.

378

Compressed Air System Optimization  

E-Print Network [OSTI]

Several years ago I went to a gas station and noticed that my car's tires were low on air. I saw the gas station had an air compressor, but it cost a quarter to use the compressor. I paid my quarter and used the compressor. I realized...

Aegerter, R.

379

Recirculating electric air filter  

DOE Patents [OSTI]

An electric air filter cartridge has a cylindrical inner high voltage electrode, a layer of filter material, and an outer ground electrode formed of a plurality of segments moveably connected together. The outer electrode can be easily opened to remove or insert filter material. Air flows through the two electrodes and the filter material and is exhausted from the center of the inner electrode.

Bergman, W.

1985-01-09T23:59:59.000Z

380

Central American update  

SciTech Connect (OSTI)

The Central American Energy Resources Project is designed to help the countries of Honduras, Costa Rica, El Salvador, Guatemala, and Panama develop their geothermal resources. Auxiliary project goals are to increase economic development and employment in Central America; to provide a scientific basis for the private sector to develop natural resources; and to provide scientific training to in-country scientists, engineers, and technicians. The energy resources project began in March 1985. The progress being made in El Salvador (production well logging and geophysical operations), Panama (site selection for the first temperature-gradient well), and Honduras (well drilling of temperature-gradient wells) is summarized.

Hodgson, S.F.

1987-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "fan central air" 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

Meeting the Air Leakage  

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

Meeting the Air Leakage Meeting the Air Leakage Requirements of the 2012 IECC The U.S. Department of Energy (DOE) recognizes the enormous potential that exists for improving the energy efficiency, safety and comfort of homes. The newest edition of the International Energy Conservation Code ® (IECC) (2012) sets the bar higher for energy efficiency, and new air sealing requirements are one of the key new provisions. This guide is a resource for understanding the new air leakage requirements in the 2012 IECC and suggestions on how these new measures can be met. It also provides information from Building America's Air Sealing Guide, Best Practices and case studies on homes that are currently meeting the provisions. The 2012 IECC and a few International Residential Code (IRC) requirements are referenced throughout the guide.

382

Neuro-optimal operation of a variable air volume HVAC&R system  

Science Journals Connector (OSTI)

Low operational efficiency especially under partial load conditions and poor control are some reasons for high energy consumption of heating, ventilation, air conditioning and refrigeration (HVAC&R) systems. To improve energy efficiency, HVAC&R systems should be efficiently operated to maintain a desired indoor environment under dynamic ambient and indoor conditions. This study proposes a neural network based optimal supervisory operation strategy to find the optimal set points for chilled water supply temperature, discharge air temperature and VAV system fan static pressure such that the indoor environment is maintained with the least chiller and fan energy consumption. To achieve this objective, a dynamic system model is developed first to simulate the system behavior under different control schemes and operating conditions. A multi-layer feed forward neural network is constructed and trained in unsupervised mode to minimize the cost function which is comprised of overall energy cost and penalty cost when one or more constraints are violated. After training, the network is implemented as a supervisory controller to compute the optimal settings for the system. Simulation results show that compared to the conventional night reset operation scheme, the optimal operation scheme saves around 10% energy under full load condition and 19% energy under partial load conditions.

Min Ning; M. Zaheeruddin

2010-01-01T23:59:59.000Z

383

POWER CENTRALIZED SEMIGROUPS PRIMOZ MORAVEC  

E-Print Network [OSTI]

POWER CENTRALIZED SEMIGROUPS PRIMOZ MORAVEC Abstract. A semigroup is said to be power centralized if for every pair of elements x and y there exists a power of x commuting with y. The structure of power centralized groups and semigroups is investigated. In particular, we characterize 0-simple power centralized

384

Air Handling Unit Supply Air Temperature Optimization During Economizer Cycles  

E-Print Network [OSTI]

Air Handling Unit Supply Air Temperature Optimization during Economizer Cycles Gang Wang, Zhan Wang, Ke Xu and Mingsheng Liu University of Nebraska Lincoln Omaha, Nebraska, USA ABSTRACT Most air handling units (AHUs) in commercial...

Xu, K.; Liu, M.; Wang, G.; Wang, Z.

2007-01-01T23:59:59.000Z

385

2014-09-16 Issuance: Energy Efficiency Program for Consumer Products: Energy Conservation Standards for Ceiling Fans: Public Meeting and Availability of the Preliminary Technical Support Document  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register Energy Efficiency Program for Consumer Products: Energy Conservation Standards for Ceiling Fans: Public Meeting and Availability of the Preliminary Technical Support Document.

386

A prototype fan-beam optical CT scanner for 3D dosimetry  

SciTech Connect (OSTI)

Purpose: The objective of this work is to introduce a prototype fan-beam optical computed tomography scanner for three-dimensional (3D) radiation dosimetry. Methods: Two techniques of fan-beam creation were evaluated: a helium-neon laser (HeNe, {lambda} = 543 nm) with line-generating lens, and a laser diode module (LDM, {lambda} = 635 nm) with line-creating head module. Two physical collimator designs were assessed: a single-slot collimator and a multihole collimator. Optimal collimator depth was determined by observing the signal of a single photodiode with varying collimator depths. A method of extending the dynamic range of the system is presented. Two sample types were used for evaluations: nondosimetric absorbent solutions and irradiated polymer gel dosimeters, each housed in 1 liter cylindrical plastic flasks. Imaging protocol investigations were performed to address ring artefacts and image noise. Two image artefact removal techniques were performed in sinogram space. Collimator efficacy was evaluated by imaging highly opaque samples of scatter-based and absorption-based solutions. A noise-based flask registration technique was developed. Two protocols for gel manufacture were examined. Results: The LDM proved advantageous over the HeNe laser due to its reduced noise. Also, the LDM uses a wavelength more suitable for the PRESAGE{sup TM} dosimeter. Collimator depth of 1.5 cm was found to be an optimal balance between scatter rejection, signal strength, and manufacture ease. The multihole collimator is capable of maintaining accurate scatter-rejection to high levels of opacity with scatter-based solutions (T < 0.015%). Imaging protocol investigations support the need for preirradiation and postirradiation scanning to reduce reflection-based ring artefacts and to accommodate flask imperfections and gel inhomogeneities. Artefact removal techniques in sinogram space eliminate streaking artefacts and reduce ring artefacts of up to {approx}40% in magnitude. The flask registration technique was shown to achieve submillimetre and subdegree placement accuracy. Dosimetry protocol investigations emphasize the need to allow gel dosimeters to cool gradually and to be scanned while at room temperature. Preliminary tests show that considerable noise reduction can be achieved with sinogram filtering and by binning image pixels into more clinically relevant grid sizes. Conclusions: This paper describes a new optical CT scanner for 3D radiation dosimetry. Tests demonstrate that it is capable of imaging both absorption-based and scatter-based samples of high opacities. Imaging protocol and gel dosimeter manufacture techniques have been adapted to produce optimal reconstruction results. These optimal results will require suitable filtering and binning techniques for noise reduction purposes.

Campbell, Warren G.; Rudko, D. A.; Braam, Nicolas A.; Jirasek, Andrew [University of Victoria, Victoria, British Columbia V8P 5C2 (Canada); Wells, Derek M. [British Columbia Cancer Agency, Vancouver Island Centre, Victoria, British Columbia V8R 6V5 (Canada)

2013-06-15T23:59:59.000Z

387

Energy savings and economics of advanced control strategies for packaged air conditioners with gas heat  

SciTech Connect (OSTI)

This paper presents an evaluation of the potential energy savings from adding advanced control to existing packaged air conditioners. Advanced control options include air-side economizer, multi-speed fan control, demand control ventilation and staged cooling. The energy and cost savings from the different control strategies individually and in combination are estimated using the EnergyPlus detailed energy simulation program for four building types, namely, a small office building, a stand-alone retail building, a strip mall building and a supermarket building. For each of the four building types, the simulation was run for 16 locations covering all 15 climate zones in the U.S. The maximum installed cost of a replacement controller that provides acceptable payback periods to owners is estimated.

Wang, Weimin; Katipamula, Srinivas; Huang, Yunzhi; Brambley, Michael R.

2013-10-01T23:59:59.000Z

388

Field testing of component-level model-based fault detection methods for mixing boxes and VAV fan systems  

SciTech Connect (OSTI)

An automated fault detection and diagnosis tool for HVAC systems is being developed, based on an integrated, life-cycle, approach to commissioning and performance monitoring. The tool uses component-level HVAC equipment models implemented in the SPARK equation-based simulation environment. The models are configured using design information and component manufacturers' data and then fine-tuned to match the actual performance of the equipment by using data measured during functional tests of the sort using in commissioning. This paper presents the results of field tests of mixing box and VAV fan system models in an experimental facility and a commercial office building. The models were found to be capable of representing the performance of correctly operating mixing box and VAV fan systems and detecting several types of incorrect operation.

Xu, Peng; Haves, Philip

2002-05-16T23:59:59.000Z

389

A quarterly and Central  

E-Print Network [OSTI]

A quarterly report on employment and office markets in Northern and Central New Jersey May 2008- plications for the state's office markets. This year has every indication of being a very difficult capacity. Along with the ongoing Portfields Initiative project, the Port of New York and New Jersey

390

Appliances and Commercial Equipment Standards  

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

Furnace Fans Furnace Fans Sign up for e-mail updates on regulations for this and other products Currently there are no energy conservation standards for residential furnace fans. A furnace fan is an electrically-powered device used in residential central heating, ventilation, and air conditioning (HVAC) systems for the purposes of circulating air through duct work. A furnace fan consists of a fan motor and its controls, a centrifugal impeller, and sheet metal housing. The Department of Energy (DOE) is currently conducting an energy conservation standard rulemaking for furnace fans. If any standard is established, its benefits will be explained in the final rule. Recent Updates | Standards | Test Procedures | Waiver, Exception, and Exemption Information | Statutory Authority | Historical Information | Contact Information

391

Field demonstration of optimized variable speed compressor and condenser fan control for commercial refrigeration systems. Final report  

SciTech Connect (OSTI)

The demonstration project discussed in this report consisted of two separate programs intended to examine methods of implementing variable-frequency drives (VFDs) to increase the efficiency of supermarket refrigeration racks. The first program examined the optimum control strategy for minimizing the power consumption of medium-temperature parallel compressor racks driven by VFDs. The second program, aimed at developing the optimum control strategy for variable-speed control of supermarket condenser fans.

NONE

1997-11-01T23:59:59.000Z

392

Air ejector augmented compressed air energy storage system  

DOE Patents [OSTI]

Energy is stored in slack demand periods by charging a plurality of underground reservoirs with air to the same peak storage pressure, during peak demand periods throttling the air from one storage reservoir into a gas turbine system at a constant inlet pressure until the air pressure in the reservoir falls to said constant inlet pressure, thereupon permitting air in a second reservoir to flow into said gas turbine system while drawing air from the first reservoir through a variable geometry air ejector and adjusting said variable geometry air ejector, said air flow being essentially at the constant inlet pressure of the gas turbine system.

Ahrens, Frederick W. (Naperville, IL); Kartsounes, George T. (Naperville, IL)

1980-01-01T23:59:59.000Z

393

Abatement of Air Pollution: Prohibition of Air Pollution (Connecticut)  

Broader source: Energy.gov [DOE]

All air pollution not otherwise covered by these regulations is prohibited. Stationary sources which cause air pollution must be operated in accordance with all applicable emissions standards and...

394

Energy and air emission implications of a decentralized wastewater system  

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

and air emission implications of a decentralized wastewater system and air emission implications of a decentralized wastewater system Title Energy and air emission implications of a decentralized wastewater system Publication Type Journal Article Year of Publication 2012 Authors Shehabi, Arman, Jennifer R. Stokes, and Arpad Horvath Journal Environmental Research Letters Volume 7 Issue 2 Abstract Both centralized and decentralized wastewater systems have distinct engineering, financial and societal benefits. This paper presents a framework for analyzing the environmental effects of decentralized wastewater systems and an evaluation of the environmental impacts associated with two currently operating systems in California, one centralized and one decentralized. A comparison of energy use, greenhouse gas emissions and criteria air pollutants from the systems shows that the scale economies of the centralized plant help lower the environmental burden to less than a fifth of that of the decentralized utility for the same volume treated. The energy and emission burdens of the decentralized plant are reduced when accounting for high-yield wastewater reuse if it supplants an energy-intensive water supply like a desalination one. The centralized facility also reduces greenhouse gases by flaring methane generated during the treatment process, while methane is directly emitted from the decentralized system. The results are compelling enough to indicate that the life-cycle environmental impacts of decentralized designs should be carefully evaluated as part of the design process.

395

Sensible and Latent Cooling Load Control Using Centrally-Ducted, Variable-Capacity Space Conditioning Systems in Low Sensible Load Environments  

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

Sensible and Latent Cooling Load Control Using Centrally-Ducted, Variable-Capacity Space Conditioning Systems in Low Sensible Load Environments James Cummings BA-PIRC; Florida Solar Energy Center Presented at BA Summer Meeting, July 26, 2012 The gist of my message * Fixed capacity AC systems generally provide good RH control in typical residences. * In low-load homes, they may be less effective in achieving good RH control. * On the other hand, variable capacity AC systems have several characteristics which can provide improved RH control in homes. - Both Nordyne and Carrier have variable capacity units, varying from about 40% to 100% of nominal full capacity. - What is variable capacity? -- condenser fan, compressor speed, and AHU fan speed. The gist, continued

396

Minka-Aire: Order (2014-CE-32018)  

Broader source: Energy.gov [DOE]

DOE ordered Minka Lighting Inc. to pay a $8,000 civil penalty after finding Minka had failed to certify that certain models of ceiling fans comply with the applicable energy conservation standards.

397

Geological overview of the Angola-Congo Margin, the Congo deep-sea fan and its submarine valleys  

E-Print Network [OSTI]

The Congo deep-sea fan is one of the largest fans in the world still affected by presently active turbidity currents. The present activity of deep-sea sedimentary processes is linked to the existence of a direct connection between the Congo River estuary and the Congo canyon head that allows relatively continuous sediment feeding of the deep-sea environment, in spite of a wide continental shelf (150 km). Because of this important activity in terms of sedimentary processes, the deep-sea environment of the Congo-Angola margin presents major interests concerning physical, chemical and biological studies near the sea floor. The main aim of this paper is to present the initial geological context of the BioZaire Program, showing a synthesis of the major results of the ZaAngo Project including (1) the brief geological setting of the Congo-Angola margin, (2) the structure of the modern Congo deep-sea fan, (3) the sedimentary architecture of the recent Congo turbidite system (from the canyon to the distal lobes), and (4) the recent and present turbidite sedimentation. In order to provide useful information and advice relevant to biological and geochemical studies across the Congo sedimentary system, this article focuses on the present sedimentary processes and the present activity of turbidity current along the Congo canyon and channel.

unknown authors

2009-01-01T23:59:59.000Z

398

Air Pollution and Health Effects  

Science Journals Connector (OSTI)

The quality of the air we breathe is still a major concern to human health. Notwithstanding the air pollution mitigation efforts that have been pursued since ... be attributed to the effects of urban outdoor air

Ana Isabel Miranda; Joana Valente

2014-01-01T23:59:59.000Z

399

Air Quality (Nova Scotia, Canada)  

Broader source: Energy.gov [DOE]

Nova Scotia Environment is responsible for monitoring the air quality in the province, as well as administering fines and permits relating to air quality. The Air Quality Regulations state...

400

Global air quality and climate  

E-Print Network [OSTI]

CRITICAL REVIEW Global air quality and climatewz Arlene M.determine regional air quality and can alter climate.to-continental scale air quality. Reducing the O 3 precursor

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "fan central air" 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

Air heating system  

DOE Patents [OSTI]

A self-starting, fuel-fired, air heating system including a vapor generator, a turbine, and a condenser connected in a closed circuit such that the vapor output from the vapor generator is conducted to the turbine and then to the condenser where it is condensed for return to the vapor generator. The turbine drives an air blower which passes air over the condenser for cooling the condenser. Also, a condensate pump is driven by the turbine. The disclosure is particularly concerned with the provision of heat exchanger and circuitry for cooling the condensed fluid output from the pump prior to its return to the vapor generator.

Primeau, John J. (19800 Seminole Rd., Euclid, OH 44117)

1983-03-01T23:59:59.000Z

402

ECONOMIC RECOVERY OF OIL TRAPPED AT FAN MARGINS USING HIGH ANGLE WELLS AND MULTIPLE HYDRAULIC FRACTURES  

SciTech Connect (OSTI)

This project attempts to demonstrate the effectiveness of exploiting thin-layered, low-energy deposits at the distal margin of a prograding turbidite complex through the use of hydraulically fractured horizontal or high-angle wells. The combination of a horizontal or high-angle well and hydraulic fracturing will allow greater pay exposure than can be achieved with conventional vertical wells while maintaining vertical communication between thin interbedded layers and the wellbore. A high-angle well will be drilled in the fan-margin portion of a slope-basin clastic reservoir and will be completed with multiple hydraulic-fracture treatments. Geologic modeling, reservoir characterization, and fine-grid reservoir simulation will be used to select the well location and orientation. Design parameters for the hydraulic-fracture treatments will be determined, in part, by fracturing an existing test well. Fracture azimuth will be predicted by passive seismic monitoring of a fracture-stimulation treatment in the test well using logging tools in an offset well.

Mike L. Laue

1998-11-06T23:59:59.000Z

403

Characterization of dynamic change of Fan-delta reservoir properties in water-drive development  

SciTech Connect (OSTI)

Fan-delta reservoir in Huzhuangji oil field of east China, is a typical highly heterogeneous reservoir. The oil field has been developed by water-drive for 10 years, but the oil recovery is less than 12%, and water cut is over 90%, resulting from high heterogeneity and serious dynamic change of reservoir properties. This paper aims at the study of dynamic change of reservoir properties in water-drive development. Through quantitative imaging analysis and mercury injection analysis of cores from inspection wells, the dynamic change of reservoir pore structure in water-drive development was studied. The results show that the {open_quotes}large pore channels{close_quotes} develop in distributary channel sandstone and become larger in water-drive development, resulting in more serious pore heterogeneity. Through reservoir sensitivity experiments, the rock-fluid reaction in water-drive development is studied. The results show the permeability of some distal bar sandstone and deserted channel sandstone becomes lower due to swelling of I/S clay minerals in pore throats. OD the other hand, the permeability of distributary channel and mouth bar sandstone become larger because the authigenic Koalinites in pore throats are flushed away with the increase of flow rate of injection water. Well-logging analysis of flooded reservoirs are used to study the dynamic change of reservoir properties in various flow units. The distribution of remaining oil is closely related to the types and distribution of flow units.

Wu Shenghe; Xiong Qihua; Liu Yuhong [Univ. of Petroleum Changping, Beijing (China)

1997-08-01T23:59:59.000Z

404

Toward green systems for cleanrooms: Energy efficient fan-filter units  

SciTech Connect (OSTI)

The paper presents results of laboratory-measured performance of fan-filter units (FFUs) used for cleanrooms. A total of twenty FFUs collected from the market were tested, including thirteen 1220 mm x 610 mm (or 4 ft x 2 ft) units and seven 1220 mm x 1220 mm (or 4 ft x 4 ft) units. The paper concludes that there are wide variations in FFUs energy performance, and that there are opportunities in improving energy efficiency and lowering operating costs of FFUs. Furthermore, the paper suggests the benefits of having a uniform method for testing and reporting FFU performance. Such a testing method and recommended practice guideline is under development, with heavy input from FFU suppliers, users, and independent institutions that include Lawrence Berkeley National Laboratory (LBNL), Industrial Technology Research Institute (ITRI), and Institute of Environmental Sciences and Technology (IEST). An integrated approach with the participation from designers, suppliers, users, and utility companies can help to identify energy-efficient FFUs that are required for many cleanroom applications.

Jeng, Ming-Shan; Xu, Tengfang; Lan, Chao-Ho

2004-07-12T23:59:59.000Z

405

Maintaining System Air Quality | Department of Energy  

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

Maintaining System Air Quality Maintaining System Air Quality This tip sheet discusses how to maintain air quality in compressed air systems through proper use of equipment....

406

Compressed Air Systems | Department of Energy  

Energy Savers [EERE]

Maintenance Strategies for Compressed Air Systems Remove Condensate with Minimal Air Loss Stabilizing System Pressure Compressed Air Training Compressed Air Systems Tools...

407

Compressed Air Storage Strategies | Department of Energy  

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

Storage Strategies Compressed Air Storage Strategies This tip sheet briefly discusses compressed air storage strategies. COMPRESSED AIR TIP SHEET 9 Compressed Air Storage...

408

Rating of Mixed Split Residential Air Conditioners  

E-Print Network [OSTI]

by the indoor fan, the indoor fan is characterized by its power needed to provide this CFM, and the expansion device is characterized by its restrictiveness to the refrigerant flow (explained later). A computer model of a heat pump was used in this study.... The structure of HPSIM is modular. The model consists of 41 subprograms for heat pump component simulation, heat transfer, fluid mechan- ics, and fluid property calculation. The program totals approximately 5000 Fortran statements. UncL -'< Fig. 2...

Domanski, P. A.

1988-01-01T23:59:59.000Z

409

Procuring Energy-Efficient Products (Fact Sheet) (Revised), Federal Energy Management Program (FEMP)  

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

Space Heating Space Heating and Cooling * Boilers p * Central Air Conditioners n * Chillers - Air-Cooled Electric p - Water-Cooled Electric p * Air Source Heat Pumps n Commercial Water Heating * Gas Water Heaters p Residential Space Heating and Cooling * Room Air Conditioners n * Central Air Conditioners n * Boilers n * Fans - Ceiling n - Ventilation n * Gas Furnaces n * Heat Pumps - Air Source n - Ground-Source n Residential Water Heating * Electric Resistance Storage p * Heat Pump n

410

Procuring Energy-Efficient Products (Fact Sheet) (Revised), Federal Energy Management Program (FEMP)  

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

Space Heating Space Heating and Cooling * Boilers p * Central Air Conditioners n * Chillers - Air-Cooled Electric p - Water-Cooled Electric p * Air Source Heat Pumps n Commercial Water Heating * Gas Water Heaters p Residential Space Heating and Cooling * Room Air Conditioners n * Central Air Conditioners n * Boilers n * Fans - Ceiling n - Ventilation n * Gas Furnaces n * Heat Pumps - Air Source n - Ground-Source n Residential Water Heating * Electric Resistance Storage p * Heat Pump n

411

Air Quality Rules (North Carolina)  

Broader source: Energy.gov [DOE]

This is a comprehensive air quality rule for North Carolina that includes ambient air quality standards, emission control standards, monitoring and reporting requirements, and permitting procedures...

412

Ambient Air Quality Standards (Iowa)  

Broader source: Energy.gov [DOE]

These regulations set statewide ambient air quality standards for various contaminants. The state code follows the regulations set forth in the National Primary and Secondary Ambient Air Quality...

413

Greenhouse Gas and Air Pollution Interactions and Synergies (GAINS) | Open  

Open Energy Info (EERE)

Greenhouse Gas and Air Pollution Interactions and Synergies (GAINS) Greenhouse Gas and Air Pollution Interactions and Synergies (GAINS) Jump to: navigation, search Tool Summary Name: Greenhouse Gas and Air Pollution Interactions and Synergies (GAINS) Agency/Company /Organization: International Institute for Applied Systems Analysis (IIASA) Sector: Energy, Land Topics: Co-benefits assessment, GHG inventory Resource Type: Software/modeling tools User Interface: Website Complexity/Ease of Use: Not Available Website: gains.iiasa.ac.at/index.php/home-page/241-on-line-access-to-gains Cost: Free UN Region: Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa, Caribbean, Central America, South America, Northern America, Central Asia, Eastern Asia, Southern Asia, South-Eastern Asia, Western Asia, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Australia and New Zealand, Melanesia, Micronesia, Polynesia

414

Padding with Compressed Air  

E-Print Network [OSTI]

We commonly find plants using padding to transport liquids or light solids short distances from tankers into storage tanks. Padding can wreck havoc in compressed air systems with limited storage, undersized cleanup equipment (dryers and filters...

Beals, C.

2004-01-01T23:59:59.000Z

415

Traffic air quality index  

Science Journals Connector (OSTI)

Abstract Vehicle emissions are responsible for a considerable share of urban air pollution concentrations. The traffic air quality index (TAQI) is proposed as a useful tool for evaluating air quality near roadways. The TAQI associates air quality with the equivalent emission from traffic sources and with street structure (roadway structure) as anthropogenic factors. The paper presents a method of determining the TAQI and defines the degrees of harmfulness of emitted pollution. It proposes a classification specifying a potential threat to human health based on the TAQI value and shows an example of calculating the TAQI value for real urban streets. It also considers the role that car traffic plays in creating a local UHI.

Zbigniew Bagie?ski

2015-01-01T23:59:59.000Z

416

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

417

Page 1 of 4 Refrigerant Charge Verification: 70F Return Air Requirement  

E-Print Network [OSTI]

by operating the central heating system to preheat the dwelling sufficiently to keep the air temperature above 70°F for the duration of the test, or by using supplemental electric resistance heating devices on for the refrigerant charge test. This preheating is best accomplished by the central heating system, but a plug

418

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

419

Anaheim Public Utilities - Residential Home Efficiency Rebate Program |  

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

Residential Home Efficiency Rebate Residential Home Efficiency Rebate Program Anaheim Public Utilities - Residential Home Efficiency Rebate Program < Back Eligibility Low-Income Residential Multi-Family Residential Residential Savings Category Heating & Cooling Cooling Commercial Heating & Cooling Appliances & Electronics Home Weatherization Commercial Weatherization Sealing Your Home Ventilation Manufacturing Commercial Lighting Lighting Windows, Doors, & Skylights Maximum Rebate Air Duct Repair: $300 Ceiling Fan: 3 fans Program Info State California Program Type Utility Rebate Program Rebate Amount Refrigerator: $50 Refrigerator Recycling: $50 Dishwasher: $50 Room A/C: $50 Central A/C: $100/ton High Performance windows: $1/sq ft Air Duct Repair: 50% of repair cost Ceiling Fan: $20 Whole House Fan: $100

420

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

Note: This page contains sample records for the topic "fan central air" 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

Combustion air preheating for refinery heaters using plate-type heat exchangers  

SciTech Connect (OSTI)

Combustion air preheating by recovering heat from combustion gases is a cost effective method of increasing the overall thermal efficiency of the refining and petrochemical processes. This paper presents the advantages of the plate-type air preheaters made of smooth plates without extended surfaces. These exchangers provide a relatively high heat transfer coefficient at a relatively low pressure drop, resulting in a flexible and compact design. The air preheater design can easily be integrated into the heater design. Top mounting with natural draft becomes possible for many applications, eliminating the need for I.D. fan and expensive ductwork. The economical extent of heat recovery function of the fuel fired is presented based on practical experience. The use of porcelain enameled (glass coated) plates and of stainless steel materials allows the operation of the air preheater below the acidic and water dew point. Finally the paper presents the experience of the Canadian refineries and petrochemical plants with plate-type heat exchangers used for combustion air preheating.

Dinulescu, M.

1987-01-01T23:59:59.000Z

422

Synergization of air handling units for high energy efficiency in office buildings: The theory and analysis  

Science Journals Connector (OSTI)

An air handling unit (AHU) along with its downstream terminals is considered as the primary independent thermal processing and air distribution system in buildings. The outside air intake, supply air temperature control, and fan modulation are performed within the individual AHU for an associated region to integrally achieve the energy efficiency and indoor air quality (IAQ). The conventional zoning and AHU operation strategy in office buildings lowers the energy waste probability due to the heating and cooling mode compromising among the zones. However, this AHU oriented practice limits the utilization of heat surplus in building regions and operation difference across the AHUs. To break the frame and bring in synergization among them in office buildings, an integrated AHU (IAHU) control is proposed in this study. The theory is revealed in three steps: (1) the critical ventilation constraints of the new control are quantitatively defined; (2) the supervisory decision making schema for optimum energy efficiency are provided analytically; (3) the parameters are briefly discussed in terms of their influences on the system performance. This innovative operation of IAHU could notably improve the building level energy efficiency through significant heat gain transferring, and sensible and latent load decoupling.

Yuebin Yu; Mingsheng Liu; Haorong Li; Daihong Yu; Vivian Loftness

2012-01-01T23:59:59.000Z

423

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

424

Air Cooling | Open Energy Information  

Open Energy Info (EERE)

Cooling Cooling Jump to: navigation, search Dictionary.png Air Cooling: Air cooling is commonly defined as rejecting heat from an object by flowing air over the surface of the object, through means of convection. Air cooling requires that the air must be cooler than the object or surface from which it is expected to remove heat. This is due to the second law of thermodynamics, which states that heat will only move spontaneously from a hot reservoir (the heat sink) to a cold reservoir (the air). Other definitions:Wikipedia Reegle Air Cooling Air Cooling Diagram of Air Cooled Condenser designed by GEA Heat Exchangers Ltd. (http://www.gea-btt.com.cn/opencms/opencms/bttc/en/Products/Air_Cooled_Condenser.html) Air cooling is limited on ambient temperatures and typically require a

425

AIR SEALING Seal air leaks and save energy!  

E-Print Network [OSTI]

AIR SEALING Seal air leaks and save energy! W H A T I S A I R L E A K A G E ? Ventilation is fresh at stopping air leakage. It is critical to seal all holes and seams between these sheet goods with durable air that enters a house in a controlled manner to exhaust excess moisture and reduce odors

Oak Ridge National Laboratory

426

inAir: Sharing Indoor Air Quality Measurements and Visualizations  

E-Print Network [OSTI]

evidence has indicated that indoor air pollution within homes and other buildings can be worse than the outdoor air pollution in even the largest and most industrialized cities. For example, the California Air Resources Board estimates that indoor air pollutant levels are 25-62% greater than outside levels [4

Mankoff, Jennifer

427

Air Quality: Air Pollutants, SLAC Emissions Sources, and Regulatory Reference  

E-Print Network [OSTI]

permit regulations are designed to track, record, and control air pollutants belonging to severalAir Quality: Air Pollutants, SLAC Emissions Sources, and Regulatory Reference Department: Chemical on chemical classifications. This reference outlines major categories of air pollutants found at SLAC

Wechsler, Risa H.

428

The Central Laser Facility at the Pierre Auger Observatory  

E-Print Network [OSTI]

The Central Laser Facility is located near the middle of the Pierre Auger Observatory in Argentina. It features a UV laser and optics that direct a beam of calibrated pulsed light into the sky. Light scattered from this beam produces tracks in the Auger optical detectors which normally record nitrogen fluorescence tracks from cosmic ray air showers. The Central Laser Facility provides a "test beam" to investigate properties of the atmosphere and the fluorescence detectors. The laser can send light via optical fiber simultaneously to the nearest surface detector tank for hybrid timing analyses. We describe the facility and show some examples of its many uses.

F. Arqueros; J. Bellido; C. Covault; D. D'Urso; C. Di Giulio; P. Facal; B. Fick; F. Guarino; M. Malek; J. A. J. Matthews; J. Matthews; R. Meyhandan; M. Monasor; M. Mostafa; P. Petrinca; M. Roberts; P. Sommers; P. Travnicek; L. Valore; V. Verzi; L. Wiencke

2005-07-13T23:59:59.000Z

429

PERFORMANCE EVALUATION OF AN AIR-TO-AIR HEAT PUMP COUPLED WITH TEMPERATE AIR-SOURCES INTEGRATED INTO A DWELLING  

E-Print Network [OSTI]

PERFORMANCE EVALUATION OF AN AIR-TO-AIR HEAT PUMP COUPLED WITH TEMPERATE AIR-SOURCES INTEGRATED.peuportier@mines-paristech.fr, Tel.: +33 1 40 51 91 51 ABSTRACT An inverter-driven air-to-air heat pump model has been developped capacity air-to-air heat pump coupled with temperate air sources (crawlspace, attic, sunspace, heat

Paris-Sud XI, Université de

430

Central ignition scenarios for TFTR  

SciTech Connect (OSTI)

The possibility of obtaining ignition in TFTR by means of very centrally peaked density profiles is examined. It is shown that local central alpha heating can be made to exceed local central energy losses (''central ignition'') under global conditions for which Q greater than or equal to 1. Time dependent 1-D transport simulations show that the normal global ignition requirements are substantially relaxed for plasmas with peaked density profiles. 18 refs., 18 figs.

Zweben, S.J.; Redi, M.H.; Bateman, G.

1986-03-01T23:59:59.000Z

431

ARM - Central Authentication Service  

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

History History Organization Participants Facility Statistics Forms Contacts Research Themes Research Highlights Journal Articles Collaborations Atmospheric System Research (ASR) Propose a Campaign Submitting Proposals: Guidelines Featured Campaigns Campaign Data List of Campaigns Aerial Facility Mobile Facilities North Slope of Alaska Southern Great Plains Tropical Western Pacific Eastern North Atlantic Location Table Contacts Instrument Datastreams Value-Added Products PI Data Products Field Campaign Data Related Data Data Plots Data Policy Data Documentation Data Gathering and Delivery Data Quality Data Tools Data Archive Data Management Facility External Data Center Features and Releases Facility News Blogs: Air Time & Field Notes Meetings and Events Employment Research Highlights Data Announcements

432

EMISSIONS TO AIR OPERATIONAL PROCEDURE  

E-Print Network [OSTI]

EMISSIONS TO AIR OPERATIONAL PROCEDURE Swansea University Estates Services Singleton Park Swansea to Air Department: Estates and Facilities Site: All Author: Ambreen Jahangir Approved by: Mark Durdin PURPOSE: To minimise emissions and discharges to air from boilers, fume cupboards, air conditioning

Harman, Neal.A.

433

Air Quality | Open Energy Information  

Open Energy Info (EERE)

Retrieved from "http:en.openei.orgwindex.php?titleAirQuality&oldid612070" Category: NEPA Resources...

434

ECONOMIC RECOVERY OF OIL TRAPPED AT FAN MARGINS USING HIGH ANGLE WELLS AND MULTIPLE HYDRAULIC FRACTURES  

SciTech Connect (OSTI)

This project attempts to demonstrate the effectiveness of exploiting thin-layered, low-energy deposits at the distal margin of a prograding turbidite complex through the use of hydraulically fractured horizontal or high-angle wells. The combination of a horizontal or high-angle well and hydraulic fracturing will allow greater pay exposure than can be achieved with conventional vertical wells while maintaining vertical communication between thin interbedded layers and the wellbore. A high-angle well will be drilled in the fan-margin portion of a slope-basin clastic reservoir and will be completed with multiple hydraulic-fracture treatments. Geologic modeling, reservoir characterization, and fine-grid reservoir simulation will be used to select the well location and orientation. Design parameters for the hydraulic-fracture treatments will be determined, in part, by fracturing an existing test well. Fracture azimuth will be predicted by passive seismic monitoring of a fracture-stimulation treatment in the test well using logging tools in an offset well. The long radius, near horizontal well was drilled during the first quarter of 1996. Well conditions resulted in the 7 in. production liner sticking approximately 900 ft off bottom. Therefore, a 5 in. production liner was necessary to case this portion of the target formation. Swept-out sand intervals and a poor cement bond behind the 5 in. liner precluded two of the three originally planned hydraulic fracture treatments. As a result, all pay intervals behind the 5 in. liner were perforated and stimulated with a non-acid reactive fluid. Following a short production period, the remaining pay intervals in the well (behind the 7 in. liner) were perforated. The well was returned to production to observe production trends and pressure behavior and assess the need to stimulate the new perforations.

Mike L. Laue

2001-09-28T23:59:59.000Z

435

Impacts of Mixing on Acceptable Indoor Air Quality in Homes  

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

Impacts of Mixing on Acceptable Indoor Air Quality in Homes Impacts of Mixing on Acceptable Indoor Air Quality in Homes Title Impacts of Mixing on Acceptable Indoor Air Quality in Homes Publication Type Journal Article LBNL Report Number LBNL-3048E Year of Publication 2010 Authors Sherman, Max H., and Iain S. Walker Journal HVAC & Research Journal Keywords air distribution, indoor air quality, mechanical ventilation, mixing, other, resave, residential ventilation, ventilation effectiveness Abstract Ventilation reduces occupant exposure to indoor contaminants by diluting or removing them. In a multi-zone environment such as a house, every zone will have different dilution rates and contaminant source strengths. The total ventilation rate is the most important factor in determining occupant exposure to given contaminant sources, but the zone-specific distribution of exhaust and supply air and the mixing of ventilation air can play significant roles. Different types of ventilation systems will provide different amounts of mixing depending on several factors such as air leakage, air distribution system, and contaminant source and occupant locations. Most U.S. and Canadian homes have central heating, ventilation, and air conditioning systems, which tend to mix the air; thus, the indoor air in different zones tends to be well mixed for significant fractions of the year. This article reports recent results of investigations to determine the impact of air mixing on exposures of residential occupants to prototypical contaminants of concern. We summarize existing literature and extend past analyses to determine the parameters than affect air mixing as well as the impacts of mixing on occupant exposure, and to draw conclusions that are relevant for standards development and for practitioners designing and installing home ventilation systems. The primary conclusion is that mixing will not substantially affect the mean indoor air quality across a broad population of occupants, homes, and ventilation systems, but it can reduce the number of occupants who are exposed to extreme pollutant levels. If the policy objective is to minimize the number of people exposed above a given pollutant threshold, some amount of mixing will be of net benefit even though it does not benefit average exposure. If the policy is to minimize exposure on average, then mixing air in homes is detrimental and should not be encouraged. We also conclude that most homes in the US have adequate mixing already, but that new, high-performance homes may require additional mixing. Also our results suggest that some differentiation should be made in policies and standards for systems that provide continuous exhaust, thereby reducing relative dose for occupants overall

436

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

437

Discover Jacksonville | Ultimate Jaguars | First Coast Fugitives | Internet Directory | Jax2Go Wireless Water's Edge magazine | H for Health magazine | Jax Air News | Mayport Mirror | Kings Bay Periscope | Ultimate Yellow Pages  

E-Print Network [OSTI]

Wireless Water's Edge magazine | H for Health magazine | Jax Air News | Mayport Mirror | Kings Bay Manatee County Port Authority Central Florida: Furniture Refinishers Sub- Contract Leathersmith

Richardson, Martin C.

438

AIRE-induced apoptosis is associated with nuclear translocation of stress sensor protein GAPDH  

SciTech Connect (OSTI)

Highlights: Black-Right-Pointing-Pointer AIRE induces apoptosis in epithelial cells. Black-Right-Pointing-Pointer CARD domain of AIRE is sufficient for apoptosis induction. Black-Right-Pointing-Pointer AIRE induced apoptosis involves GAPDH translocation to the nuclei. Black-Right-Pointing-Pointer Deprenyl inhibits AIRE induced apoptosis. -- Abstract: AIRE (Autoimmune Regulator) has a central role in the transcriptional regulation of self-antigens in medullary thymic epithelial cells, which is necessary for negative selection of autoreactive T cells. Recent data have shown that AIRE can also induce apoptosis, which may be linked to cross-presentation of these self-antigens. Here we studied AIRE-induced apoptosis using AIRE over-expression in a thymic epithelial cell line as well as doxycycline-inducible HEK293 cells. We show that the HSR/CARD domain in AIRE together with a nuclear localization signal is sufficient to induce apoptosis. In the nuclei of AIRE-positive cells, we also found an increased accumulation of a glycolytic enzyme, glyceraldehyde-3-phosphate (GAPDH) reflecting cellular stress and apoptosis. Additionally, AIRE-induced apoptosis was inhibited with an anti-apoptotic agent deprenyl that blocks GAPDH nitrosylation and nuclear translocation. We propose that the AIRE-induced apoptosis pathway is associated with GAPDH nuclear translocation and induction of NO-induced cellular stress in AIRE-expressing cells.

Liiv, Ingrid, E-mail: ingrid.liiv@ut.ee [Molecular Pathology, Institute of General and Molecular Pathology, University of Tartu, Tartu (Estonia)] [Molecular Pathology, Institute of General and Molecular Pathology, University of Tartu, Tartu (Estonia); Haljasorg, Uku; Kisand, Kai; Maslovskaja, Julia; Laan, Martti; Peterson, Paert [Molecular Pathology, Institute of General and Molecular Pathology, University of Tartu, Tartu (Estonia)] [Molecular Pathology, Institute of General and Molecular Pathology, University of Tartu, Tartu (Estonia)

2012-06-22T23:59:59.000Z

439

Central American resource studies  

SciTech Connect (OSTI)

Los Alamos National Laboratory has been working with five Central American countries to assist in the development of their energy and mineral resources. Since 1985, mineral resources in Costa Rica, peat resources in Costa Rica and Panama, geothermal energy resources in Honduras and Guatemala, and geothermal field development in El Salvador and Costa Rica have been topics of study. This paper presents an overview of this work -- within these proceedings are papers that deal with specific aspects of each topic, and these will be duly noted. 15 refs., 4 figs.

Van Eeckhout, E.; Laughlin, A.W.

1989-01-01T23:59:59.000Z

440

Central American electrical interconnection  

SciTech Connect (OSTI)

A technical cooperation grant of $2.25 million, designed to strengthen the capacity of Central American countries to operate their regional interconnected electrical system, was announced by the Inter-American Development Bank (IDB). The grant, extended from the banks Fund for Special Operations, will help improve the capacity of the regions electric power companies to achieve economical, safe operation of the interconnected electric power systems. The funds will also be used to finance regional studies of the accords, procedures, regulations, and supervisory mechanisms for the system, as well as program development and data bases.

Not Available

1988-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "fan central air" 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

Quantifying the Air Pollution Exposure Consequences of Distributed  

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

Quantifying the Air Pollution Exposure Consequences of Distributed Quantifying the Air Pollution Exposure Consequences of Distributed Electricity Generation Speaker(s): Garvin Heath Date: November 8, 2005 - 12:00pm Location: Bldg. 90 This talk will highlight my research investigating differences in potential for human inhalation exposure to air pollutants emitted by distributed electricity generation (DG) technologies and existing central station power plants in California. The most sophisticated research on environmental impacts of DG has focused on evaluating spatially and temporally resolved air pollutant concentrations (e.g., ozone) that result from scenarios of future deployment of DG technologies (Samuelsen at al., 2003 and collaborations amongst Tonse, van Buskirk and Heath, unpublished). I extend this research to consider the relationship between where pollutants are

442

Issuance 2014-11-21:Energy Efficiency Program for Consumer Products: Energy Conservation Standards for Ceiling Fans: Availability of the Preliminary Technical Support Document, Notice of Comment Period Extension  

Broader source: Energy.gov [DOE]

Energy Efficiency Program for Consumer Products: Energy Conservation Standards for Ceiling Fans: Availability of the Preliminary Technical Support Document, Notice of Comment Period Extension

443

Compressed air energy storage system  

DOE Patents [OSTI]

An internal combustion reciprocating engine is operable as a compressor during slack demand periods utilizing excess power from a power grid to charge air into an air storage reservoir and as an expander during peak demand periods to feed power into the power grid utilizing air obtained from the air storage reservoir together with combustible fuel. Preferably the internal combustion reciprocating engine is operated at high pressure and a low pressure turbine and compressor are also employed for air compression and power generation.

Ahrens, Frederick W. (Naperville, IL); Kartsounes, George T. (Naperville, IL)

1981-01-01T23:59:59.000Z

444

Air Charter Services  

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

42.2 (April 2012) 42.2 (April 2012) 1 Documentation and Approval of Federally Funded International Travel (Fly America Act-Open Skies Agreement) Overview This section provides guidance to DOE Contracting Officers, Contracting Officer Representatives, and Program Officials on documentation and approval of federally funded international travel by Federal contractors and subcontractors in accordance with FAR 52.247-63 PREFERENCE FOR U.S.-FLAG AIR CARRIERS (JUNE 2003), 49 U.S.C. §40118 (Fly America Act) and the Open Skies Agreements as amended. Background Contracts that include FAR clause 52.247-63, PREFERENCE FOR U.S.-FLAG AIR CARRIERS (JUNE 2003) as prescribed in FAR 47.405 require that, if available, the Contractor (and subcontractors), in performing work under the contract, shall use U.S.-flag air carriers for

445

air_water.cdr  

Office of Legacy Management (LM)

12/2011 12/2011 Air Monitoring Groundwater Monitoring Surface Water Monitoring A continuously operating air monitoring network was in place from 1986 through 2000 for the Weldon Spring Site Remedial Action Project (WSSRAP) to measure levels of gamma radiation, radioactive dust particles, radon gas, and asbestos. With remediation of contaminated materials essentially complete and measurements indistinguishable from background, the U.S. Department of Energy (DOE) ceased perimeter and offsite air monitoring as of December 31, 2000. Groundwater has been routinely monitored at the site since 1986. Separate groundwater monitoring programs were established for the Chemical Plant and Quarry sites because of geographic separation and differences in the hydrogeologic features that influence

446

Measurement Methods to Determine Air Leakage Between Adjacent Zones  

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

Measurement Methods to Determine Air Leakage Between Adjacent Zones Measurement Methods to Determine Air Leakage Between Adjacent Zones Title Measurement Methods to Determine Air Leakage Between Adjacent Zones Publication Type Report LBNL Report Number LBNL-5887E Year of Publication 2012 Authors Hult, Erin L., Darryl J. Dickerhoff, and Phillip N. Price Date Published 09/2012 Keywords infiltration, leakage, residential ventilation Abstract Air leakage between adjacent zones of a building can lead to indoor air quality and energy efficiency concerns, however there is no existing standard for measuring inter-zonal leakage.In this study, synthesized data and field measurements are analyzed in order to explore the uncertainty associated with different methods for collecting and analyzing fan pressurization measurements to calculate inter- zone leakage. The best of the measurement and analysis methods was a method that uses two blower doors simultaneously based on the methods of Herrlin and Modera (1988) to determine the inter-zone leakage to within 16% of the inter-zone leakage flow at 4Pa, over the range of expected conditions for a house and attached garage. Methods were also identified that use a single blower door to determine the inter-zone leakage to within 30% of its value. The test configuration selected can have a large impact on the uncertainty of the results and there are testing configurations and methods that should definitely be avoided. The most rigorous calculation method identified assumes a fixed value for the pressure exponent for the interface between the two zones (rather than determining the interface pressure exponent from the measured data) and then uses an optimization routine to fit a single set of air leakage coefficients and pressure exponents for each of three wall interfaces using both pressurization and depressurization data. Multiple pressure station tests have much less uncertainty than single pressure station approaches. Analyses of field data sets confirm a similar level of variation between test methods as was expected from the analysis of synthesized data sets and confirm the selection of specific test methods to reduce experimental uncertainty.

447

Air movement as an energy efficient means toward occupant comfort  

E-Print Network [OSTI]

ceiling-integrated fans, in commercial building design. Thebuilding management and designers, and straightforward to design. For this purpose we integrated

Arens, Edward; Zhang, Hui; Pasut, Wilmer; Zhai, Yongchao; Hoyt, Tyler; Huang, Li

2013-01-01T23:59:59.000Z

448

Sticking with air  

SciTech Connect (OSTI)

A decision to replace more than 300 aging damper actuators at Independence Plant in Newark, Arkensas forced Entergy to make a choice between pneumatic and electric actuator designs. The dampers route air flow through separate dedicated compartments to ensure proper firing of pulverised coal. The reasons that pneumatics was chosen are discussed in this article. 4 figs.

Coker, S.N. [Entergy (US). Independence Plant

2005-06-01T23:59:59.000Z

449

The air plasma spraying  

Science Journals Connector (OSTI)

The air plasma spraying is characterized by using of a compressed air as a plasma forming gas. Here is shown the application of benefits of the present technology compared with other spraying process. The creation of the present process was possible due to a reliable plasma torch and certain condition of heating and deposition of powder materials on a work. Plasma torch develops a power up to 50 kW and can work during 14 hours without replacement of a cathode and during 25 hours as for an anode what is acceptable for industrial application. When spraying of coatings a minimum waste of alloying elements is attained with slight increase of oxygen in coating which is comparable with argon plasma spraying in the open. In certain cases the air plasma spraying allows to obtain more perfect coatings and at high performance. The present method finds large application at restoration and strengthening of machine parts, at forming of components etc. The air plasma spraying provides high quality coatings at low cost of components.

Valery S. Klubnikin

1993-01-01T23:59:59.000Z

450

Canned Air in China  

E-Print Network [OSTI]

Broadcast Transcript: Not that long ago, coal smoke made the air here in Beijing so caustic that your nasal passages were seared with each breath. Those were the good old days: Car ownership was limited to government officials and the rest...

Hacker, Randi

2013-10-23T23:59:59.000Z

451

Central Internet Database (CID)  

Office of Environmental Management (EM)

CID Reports > Archived CID Reports > Archived Reports Central Internet Database CID Photo Banner Archived Reports The reports in the Archived Reports section of the CID are based on the FY 2001 EM Corporate Database (except the Buried TRU Report). The EM Corporate database stores information on radioactive waste, contaminated media, and spent nuclear fuel by identifying "streams" of material. A "stream" is defined as a group of materials, media, or waste having similar origins or management requirements. Radioactive waste, contaminated media, or spent nuclear fuel may be part of more than one "stream" from the time it is generated to the time it is permanently disposed, depending on the physical location or the management activity it is undergoing. The CID retains the "stream" concept as part of its data structure.

452

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.

453

Air handler sound power prediction method based on ARI Standard 260  

Science Journals Connector (OSTI)

A method of predicting air handler sound power based on ratings for a product line is described. The method provides octave band sound power levels based on ratings obtained using Air?Conditioning and Refrigeration Institute (ARI) Standard 260 Sound Rating Of Ducted Air Moving And Conditioning Equipment. Detailed sound power information for HVAC equipment is not always available but it is important in accurately predicting noise levels in acoustically sensitive spaces. To address this need a rating program was undertaken using ARI 260. This standard is a reverberant room technique for sound rating ducted air conditioning equipment using a reference sound source substitution method. Since sound travels from the source to receiver along numerous paths this standard differentiates between sound power emanating from several common paths called components. Components for this project included ducted discharge free inlet plus casing ducted inlet and casing. The standard provides guidance on adequate number of fan sizes appurtenances and operating characteristics. The intent of the project was to provide a model to predict sound power by unit size component operating condition and unit configuration. Good agreement was found between predicted levels and measured data.

2000-01-01T23:59:59.000Z

454

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

455

Compressed Air 101: Getting Compressed Air to Work  

E-Print Network [OSTI]

"Air compressors are a significant industrial energy user. Based on a survey (conducted by Oregon State University and the Bonneville Power Administration) of energy audit reports from 125 plants, air compressors account for roughly 10% of total...

Burke, J. J.; Bessey, E. G.

456

Vermont Air Pollution Control Regulations, Ambient Air Quality Standards (Vermont)  

Broader source: Energy.gov [DOE]

The ambient air quality standards are based on the national ambient air quality standards. The Vermont standards are classified as primary and secondary standards and judged adequate to protect...

457

East Central Energy - Commercial Energy Efficiency Rebate Program |  

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

East Central Energy - Commercial Energy Efficiency Rebate Program East Central Energy - Commercial Energy Efficiency Rebate Program East Central Energy - Commercial Energy Efficiency Rebate Program < Back Eligibility Agricultural Commercial Fed. Government Industrial Local Government Nonprofit State Government Savings Category Other Heating & Cooling Commercial Heating & Cooling Cooling Heat Pumps Appliances & Electronics Commercial Lighting Lighting Manufacturing Maximum Rebate The maximum rebate amount shall be the lesser of 50% of the project cost or $50,000 Program Info State Minnesota Program Type Utility Rebate Program Rebate Amount Motors: $5 per HP Variable Frequency Drives: $30 per HP Chillers: $10 - $20 per ton, plus $2/ton bonus for each 0.01 EER/SEER over base Cooling Towers: $3 per nominal tower ton Air Handling Systems: $170 per VAV box

458

A post-occupancy monitored evaluation of the dimmable lighting, automated shading, and underfloor air distribution system in The New York Times Building  

E-Print Network [OSTI]

underfloor variable speed fan-coil units) that serves as afor the perimeter fan-coil units (typically prescribed bycooling setpoints in the fan-coil unit controllers instead

Lee, Eleanor S.

2014-01-01T23:59:59.000Z

459

A Post-Occupancy Monitored Evaluation of the Dimmable Lighting, Automated Shading, and Underfloor Air Distribution System in The New York Times Building  

E-Print Network [OSTI]

underfloor variable speed fan-coil units) that serves as afor the perimeter fan-coil units (typically prescribed bycooling setpoints in the fan-coil unit controllers instead

2013-01-01T23:59:59.000Z

460

Environmental Pollution Air Pollution Dispersion Practical Air Pollution Dispersion  

E-Print Network [OSTI]

Environmental Pollution Air Pollution Dispersion 1 of 5 Practical ­ Air Pollution Dispersion in the lectures how such models can be used to explain observed concentrations of air pollutants in an area and to test `what-if' scenarios for pollution control and reduction. You will use the Gaussian Plume Model

Moncrieff, John B.

Note: This page contains sample records for the topic "fan central air" 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

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

462

Louisiana Air Control Law (Louisiana)  

Broader source: Energy.gov [DOE]

This law states regulations for air quality control and states the powers and duties of the secretary of environmental quality. It provides information about permits and licenses, air quality...

463

Air Pollution Indicator: PM10  

Science Journals Connector (OSTI)

As one of natural elements, clean air is essential to human beings survival. ... , almost all economic and social activities emit air pollutants, especially such sectors as power and ... and international commun...

Hezhong Tian; Yimeng Liu

2014-01-01T23:59:59.000Z

464

Air Liquide- Biogas & Fuel Cells  

Broader source: Energy.gov [DOE]

Presentation about Air Liquide's biogas technologies and integration with fuel cells. Presented by Charlie Anderson, Air Liquide, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado.

465

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

466

Compressed Air Audits using AIRMaster  

E-Print Network [OSTI]

Air compressors are a significant industrial energy user and therefore a prime target for industrial energy audits. The project goal was to develop a software tool, AIRMaster, and supporting methodology for performing compressed air system audits...

Wheeler, G. M.; McGill, R. D.; Bessey, E. G.; Vischer, K.

467

Fundamentals of Compressed Air Systems  

Broader source: Energy.gov [DOE]

Find out how a compressed air system works and the benefits of optimal compressed air system performance. This initial class demonstrates how to compute the current cost of your plant's compressed...

468

Roadway tunnel air quality models  

Science Journals Connector (OSTI)

Roadway tunnel air quality models ... Analysis of 13 tunnel studies quantifies the decline since 1961 in benzo[a]pyrene emitted into the air per km of travel by U.S. road vehicles. ...

Tai Y. Chang; Sara J. Rudy

1990-05-01T23:59:59.000Z

469

Energy Implications of In-Line Filtration in California  

E-Print Network [OSTI]

Residential Heating and Cooling Fan Power Demand. Proc.Residential Heating and Cooling Fan Power Demand. Proc.return. Table 16: Cooling fan power and air flow Climate

Walker, Iain S.

2014-01-01T23:59:59.000Z

470

Compressed Air System Control Strategies  

Broader source: Energy.gov [DOE]

This tip sheet briefly discusses compressed air system control strategies as a means to improving and maintaining system performance.

471

Compressed Air Energy Storage System  

E-Print Network [OSTI]

/expanders are crucial for the economical viability of a Compressed Air Energy Storage (CAES) system such as the

Farzad A. Shirazi; Mohsen Saadat; Bo Yan; Perry Y. Li; Terry W. Simon

472

Analyzing Your Compressed Air System  

Broader source: Energy.gov [DOE]

This tip sheet outlines the process to analyze industrial compressed air systems and ensure proper system configuration.

473

Air Leaks in Unexpected Places  

Broader source: Energy.gov [DOE]

Sealing air leaks will help to decrease heating and cooling costs and make your home more comfortable.

474

AIR QUALITY REPORT SPARKS CONTROVERSY  

Science Journals Connector (OSTI)

AIR QUALITY REPORT SPARKS CONTROVERSY ... The National Commission on Air Quality delivered its eagerly awaited report to Congress today, and reaction from industry and environmental groups is expected to be both swift and sharp. ... Created under the 1977 Clean Air Act, the commission was charged with assessing the effectiveness of the law, and recommending changes where the law falls short of achieving the goal of improving the nation's air quality. ...

1981-03-02T23:59:59.000Z

475

Air-Lift design theory  

Science Journals Connector (OSTI)

1. Employing graphical relationships between height of lift of the emulsion, depth of shaft, and specific air ra...

P. R. Khlopenkov

1970-10-01T23:59:59.000Z

476

The Viscosity of Air  

Science Journals Connector (OSTI)

The viscosity of air has been remeasured with the rotating cylinder apparatus used by Day and Bleakney. All of the constants have been redetermined, and especial attention has been given to the corrections to the simple theory. The value obtained at 22C is ?=1.82430.0045 c.g.s. units. This raises the oil drop value of e to 4.796 e.s.u. It is shown in the appendix that a correction must be applied for the opening between the suspended cylinder and the guard cylinders, and also a correction must be applied for the moment of inertia of the air carried around by the cylinder when determining its moment of inertia. Neglect of these corrections has introduced some additional uncertainty into other work.

W. V. Houston

1937-10-01T23:59:59.000Z

477

FLUIDIC: Metal Air Recharged  

SciTech Connect (OSTI)

Fluidic, with the help of ARPA-E funding, has developed and deployed the world's first proven high cycle life metal air battery. Metal air technology, often used in smaller scale devices like hearing aids, has the lowest cost per electron of any rechargeable battery storage in existence. Deploying these batteries for grid reliability is competitive with pumped hydro installations while having the advantages of a small footprint. Fluidic's battery technology allows utilities and other end users to store intermittent energy generated from solar and wind, as well as maintain reliable electrical delivery during power outages. The batteries are manufactured in the US and currently deployed to customers in emerging markets for cell tower reliability. As they continue to add customers, they've gained experience and real world data that will soon be leveraged for US grid reliability.

Friesen, Cody

2014-03-07T23:59:59.000Z

478

FLUIDIC: Metal Air Recharged  

ScienceCinema (OSTI)

Fluidic, with the help of ARPA-E funding, has developed and deployed the world's first proven high cycle life metal air battery. Metal air technology, often used in smaller scale devices like hearing aids, has the lowest cost per electron of any rechargeable battery storage in existence. Deploying these batteries for grid reliability is competitive with pumped hydro installations while having the advantages of a small footprint. Fluidic's battery technology allows utilities and other end users to store intermittent energy generated from solar and wind, as well as maintain reliable electrical delivery during power outages. The batteries are manufactured in the US and currently deployed to customers in emerging markets for cell tower reliability. As they continue to add customers, they've gained experience and real world data that will soon be leveraged for US grid reliability.

Friesen, Cody

2014-04-02T23:59:59.000Z

479

Air Pollution & Health in Rapidly Developing Countries  

E-Print Network [OSTI]

For example, Air Pollution and Health Studies in theAssessment of Air Pollution and Health is illustrative inReview: Air Pollution & Health in Rapidly Developing

Bucher, Scott

2005-01-01T23:59:59.000Z

480

California Air Resources Board | Open Energy Information  

Open Energy Info (EERE)

Air Resources Board Jump to: navigation, search Logo: California Air Resources Board Name: California Air Resources Board Place: Sacramento, California Website: http:...

Note: This page contains sample records for the topic "fan central air" 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

113 air quality control station [n  

Science Journals Connector (OSTI)

envir. (Facility for measurement of air pollution; ? air quality network/system );sestacin [f] de medicin de la calidad del aire (? red de ev...

2010-01-01T23:59:59.000Z

482

ORIGINAL ARTICLE Ambient Air Pollution  

E-Print Network [OSTI]

supporting an association between am- bient air pollution and cardiovascular health, much re- mains health effects of ambient air pollution in Atlanta being undertaken by this Emory investi- gative teamORIGINAL ARTICLE Ambient Air Pollution and Cardiovascular Emergency Department Visits Kristi Busico

Mulholland, James A.

483

Sustainable Building in China - A Green Leap Forward?  

E-Print Network [OSTI]

air-handling units, and fan coil units. Sincetemperature is high, the fan-coil units just condition the

Diamond, Richard C.

2014-01-01T23:59:59.000Z

484

Air Pollution Control Regulations: No. 22 - Air Toxics (Rhode Island) |  

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

Air Pollution Control Regulations: No. 22 - Air Toxics (Rhode Air Pollution Control Regulations: No. 22 - Air Toxics (Rhode Island) Air Pollution Control Regulations: No. 22 - Air Toxics (Rhode Island) < Back Eligibility Commercial Industrial Investor-Owned Utility Municipal/Public Utility Rural Electric Cooperative Utility Program Info State Rhode Island Program Type Siting and Permitting Provider Department of Environmental Management Permits are required to construct, install, or modify any stationary source which has the potential to increase emissions of a listed toxic air contaminant by an amount greater than the minimum quantity for that contaminant. Minimum quantities are specified in Table III of these regulations. Permits will be granted based in part on the impact of the projected emissions of the stationary source on acceptable ambient levels

485

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

486

Underfloor air distribution (UFAD) cost study: analysis of first cost tradeoffs in UFAD systems  

E-Print Network [OSTI]

is served by VAV fan coil units (FCU) with variable speedwith regard to terminal fan coil unit costs. Since the modelfan powered boxes with hot water reheat coils. Because it is a constant volume unit,

Webster, Tom; Benedek, Corinne; Bauman, Fred

2006-01-01T23:59:59.000Z

487

Heat transfer and pressure drop for air flow through enhanced passages  

SciTech Connect (OSTI)

An extensive experimental investigation was carried out to determine the pressure drop and heat transfer characteristics for laminar, transitional and turbulent flow of air through a smooth passage and twenty-three enhanced passages. The internal surfaces of all enhanced passages had spirally shaped geometries; these included fluted, finned/ribbed and indented surfaces. The Reynolds number (Re) was varied between 400 and 50000. The effect of heat transfer (wall cooling or fluid heating) on pressure drop is most significant within the transition region; the recorded pressure drop with heat transfer is much higher than that without heat transfer. The magnitude of this effect depends markedly on the average surface temperature and, to a lesser extent, on the geometric characteristics of the enhanced surfaces. When the pressure drop data are reduced as values of the Fanning friction factor(f), the results are about the same with and without heat transfer for turbulent flow, with moderate differences in the laminar and transition regions.

Obot, N.T.; Esen, E.B.

1992-06-01T23:59:59.000Z

488

Heat transfer and pressure drop for air flow through enhanced passages. Final report  

SciTech Connect (OSTI)

An extensive experimental investigation was carried out to determine the pressure drop and heat transfer characteristics for laminar, transitional and turbulent flow of air through a smooth passage and twenty-three enhanced passages. The internal surfaces of all enhanced passages had spirally shaped geometries; these included fluted, finned/ribbed and indented surfaces. The Reynolds number (Re) was varied between 400 and 50000. The effect of heat transfer (wall cooling or fluid heating) on pressure drop is most significant within the transition region; the recorded pressure drop with heat transfer is much higher than that without heat transfer. The magnitude of this effect depends markedly on the average surface temperature and, to a lesser extent, on the geometric characteristics of the enhanced surfaces. When the pressure drop data are reduced as values of the Fanning friction factor(f), the results are about the same with and without heat transfer for turbulent flow, with moderate differences in the laminar and transition regions.

Obot, N.T.; Esen, E.B.

1992-06-01T23:59:59.000Z

489

Air Risk Information Support Center  

SciTech Connect (OSTI)

The Air Risk Information Support Center (Air RISC) was initiated in early 1988 by the US Environmental Protection Agency`s (EPA) Office of Health and Environmental Assessment (OHEA) and the Office of Air Quality Planning and Standards (OAQPS) as a technology transfer effort that would focus on providing information to state and local environmental agencies and to EPA Regional Offices in the areas of health, risk, and exposure assessment for toxic air pollutants. Technical information is fostered and disseminated by Air RISCs three primary activities: (1) a {open_quotes}hotline{close_quotes}, (2) quick turn-around technical assistance projects, and (3) general technical guidance projects. 1 ref., 2 figs.

Shoaf, C.R.; Guth, D.J. [Environmental Protection Agency, Washington, DC (United States)

1990-12-31T23:59:59.000Z

490

Central America | OpenEI  

Open Energy Info (EERE)

Central America Central America Dataset Summary Description (Abstract): 50 m wind power density (W/m2) maps of Central America. (Purpose): To provide information on the wind resource potential within the following countries in Central America: Belize, El Salvador, Guatemala, Honduras, and Nicaragua. Source NREL Date Released June 30th, 2004 (10 years ago) Date Updated October 30th, 2007 (7 years ago) Keywords Central America GIS maps NREL SWERA UNEP wind Data application/zip icon Download Maps (zip, 2.2 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period 2004 License License Open Data Commons Public Domain Dedication and Licence (PDDL) Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset

491

Urban and Regional Air Quality  

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

equipment equipment Urban and Regional Air Quality Research in this area is concerned with regional air quality issues such as: Controlling nitrogen oxides (NOx) and volatile organic compounds, to manage tropospheric ozone pollution. Hazardous air pollutants: using science to base standards on rigorously studied risks. Air quality and climate: how does climate influence air quality at a regional or local level? Current modeling practices often do not capture variations in pollutants such as ozone-they represent a limited sample of the diverse meteorology and human behavior that affect air pollution. Improved modeling of regional air quality will help understand variability, reveal patterns of behavior, and pollutant transport issues. Controlled experiments in lab and field can help validate improved models.

492

Clean Air Act | Department of Energy  

Office of Environmental Management (EM)

Clean Air Act Clean Air Act The primary law governing the Department of Energy (DOE) air pollution control activities is the Clean Air Act (CAA). This law defines the role of the...

493

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

494

TEMPORAL MODELING OF SLIDE CHANGE IN PRESENTATION VIDEOS Quanfu Fan (1), Arnon Amir (2), Kobus Barnard (1), Ranjini Swaminathan (1) and Alon Efrat (1)  

E-Print Network [OSTI]

TEMPORAL MODELING OF SLIDE CHANGE IN PRESENTATION VIDEOS Quanfu Fan (1), Arnon Amir (2), Kobus develop a general framework to automatically match elec- tronic slides to the videos of corresponding video libraries. Our approach extends previous work that matches slides based on visual features alone

Barnard, Kobus

495

Reconstructing the timing of flash floods using 10Be surface exposure dating at Leidy Creek alluvial fan and valley, White Mountains, CaliforniaNevada, USA  

Science Journals Connector (OSTI)

Abstract Large alluvial fans characterize the piedmonts of the White Mountains, CaliforniaNevada, USA, with large boulders strewn across their surfaces. The boulders are interpreted as flash floods deposits with an unclear trigger for the transport process. Several triggers are possible, including glacial lake outburst floods (GLOFs), thunderstorms or rainfall on snow cover. From a paleoenvironmental perspective, the origin of the flash floods is of fundamental importance. The alluvial fans that flank the White Mountains at Leidy Creek display particularly impressive examples of these deposits. The boulder deposits and the source catchment at Leidy Creek were examined using 10Be terrestrial cosmogenic nuclide (TCN) surface exposure dating to help elucidate their age and origin. All boulders dated on the alluvial fans date to the Holocene. This is in accordance with the geomorphic analyses of the Leidy Creek catchment and its terraces and sediment ridges, which were also dated to the Holocene using optically stimulated luminescence (OSL) and 10Be surface exposure. The results suggest that the boulders on the alluvial fan were deposited by flash floods during thunderstorm events affecting the catchment of the Leidy Creek valley. Paleomonsoonal-induced mid-Holocene flash floods are the most plausible explanation for the discharges needed for these boulder aggradations, but a regional dataset is needed to confirm this explanation.

Markus Fuchs; Rebecca Reverman; Lewis A. Owen; Kurt L. Frankel

2014-01-01T23:59:59.000Z

496

Electrocatalysts for Nonaqueous LithiumAir Batteries:...  

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

Electrocatalysts for Nonaqueous LithiumAir Batteries: Status, Challenges, and Perspective. Electrocatalysts for Nonaqueous LithiumAir Batteries: Status, Challenges,...

497

Remove Condensate with Minimal Air Loss  

Broader source: Energy.gov [DOE]

This tip sheet outlines several condensate removal methods as part of maintaining compressed air system air quality.

498

Safeguarding indoor air quality  

SciTech Connect (OSTI)

California has created and implemented the first state program devoted exclusively to the investigation of nonindustrial indoor air quality. The program is responsible for promoting and conducting research on the determining factors of healthful indoor environments and is structured to obtain information about emission sources, ventilation effects, indoor concentrations, human activity patterns, exposures, health risks, control measures and public policy options. Data are gathered by a variety of methods, including research conducted by staff members, review of the available scientific literature, participation in technical meetings, contractual agreements with outside agencies, cooperative research projects with other groups and consultation with experts. 23 references, 1 figure, 1 table.

Sexton, K.; Wesolowski, J.J.

1985-01-01T23:59:59.000Z

499

ECOLE CENTRALE PARIS ET MANUFACTURES  

E-Print Network [OSTI]

, the operation of sub-level components like Heat- ing, Ventilation and Air-Conditioning (HVAC) system and on the scores they provide under the evaluation of two filter methods. Experimental results confirm the validity

Paris-Sud XI, Université de

500

"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 "