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1

LBNL-XXXXX | Logue et al., Evaluation of an Incremental Ventilation Energy Model for Estimating Impacts of Air Sealing and Mechanical Ventilation  

E-Print Network [OSTI]

LBNL-XXXXX | Logue et al., Evaluation of an Incremental Ventilation Energy Model for Estimating. Turner, Iain S. Walker, and Brett C. Singer Environmental Energy Technologies Division June 2012 LBNL-5796E #12;LBNL-XXXXX | Logue et al., Evaluation of an Incremental Ventilation Energy Model

2

Ventilation | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy UsageAUDITVehiclesTankless or Demand-Type WaterTravelVentilation Systems for

3

RESIDENTIAL VENTILATION AND ENERGY CHARACTERISTICS*  

E-Print Network [OSTI]

to provide this ventilation service, either directly for moving the air or indirectly for conditioning continue, the fraction of energy consumed by the conditioning of air may increase. Air-tightening programs Berkeley, California The role of ventilation in the housing stock is to provide fresh air and to dilute

4

CALIFORNIA INCREMENTAL IMPACTS OF ENERGY  

E-Print Network [OSTI]

INITIATIVES RELATIVE TO THE 2009 INTEGRATED ENERGY POLICY REPORT ADOPTED DEMAND FORECAST Initiatives Relative to the 2009 Integrated Energy Policy Report Adopted Demand Forecast. CEC2002009001CTF ....................................................................................................................... 7 Energy Commission Demand Forecast

5

Ventilation | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomen Owned SmallOfCoal_Budget_Fact_Sheet.pdf MoreDaily wholesale andThe

6

BUILDING VENTILATION AND INDOOR AIR QUALITY PROGRAM. CHAPTER FROM ENERGY AND ENVIRONMENT DIVISION ANNUAL REPORT 1978  

E-Print Network [OSTI]

and in new "energy-efficient design" hospitals. Developmentenergy-efficient ventilation standards and ventilation designs

Cairns, Elton J.

2011-01-01T23:59:59.000Z

7

Ventilation Systems for Cooling | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy UsageAUDITVehiclesTankless or Demand-Type WaterTravelVentilation Systems for Cooling

8

Energy Impact of Residential Ventilation Norms in the United States  

E-Print Network [OSTI]

LBNL 62341 Energy Impact of Residential Ventilation Norms in the United States Max H. Sherman of Residential Ventilation Norms in the United States Max Sherman and Iain Walker SUMMARY The first and only national norm for residential ventilation in the United States is Standard 62.2-2004 published

9

Whole-House Ventilation | Department of Energy  

Energy Savers [EERE]

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10

Natural Ventilation | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy UsageAUDITVehicles »Exchange VisitorsforDepartment of Energy NNSALabLabsNatural

11

New Air Cleaning Strategies for Reduced Commercial Building Ventilation Energy  

SciTech Connect (OSTI)

Approximately ten percent of the energy consumed in U.S. commercial buildings is used by HVAC systems to condition outdoor ventilation air. Reducing ventilation rates would be a simple and broadly-applicable energy retrofit option, if practical counter measures were available that maintained acceptable concentrations of indoor-generated air pollutants. The two general categories of countermeasures are: 1) indoor pollutant source control, and 2) air cleaning. Although pollutant source control should be used to the degree possible, source control is complicated by the large number and changing nature of indoor pollutant sources. Particle air cleaning is already routinely applied in commercial buildings. Previous calculations indicate that particle filtration consumes only 10percent to 25percent of the energy that would otherwise be required to achieve an equivalent amount of particle removal with ventilation. If cost-effective air cleaning technologies for volatile organic compounds (VOCs) were also available, outdoor air ventilation rates could be reduced substantially and broadly in the commercial building stock to save energy. The research carried out in this project focuses on developing novel VOC air cleaning technologies needed to enable energy-saving reductions in ventilation rates. The minimum required VOC removal efficiency to counteract a 50percent reduction in ventilation rate for air cleaning systems installed in the HVAC supply airstream is modest (generally 20percent or less).

Sidheswaran, Meera; Destaillats, Hugo; Sullivan, Douglas P.; Fisk, William J.

2010-10-27T23:59:59.000Z

12

RECOMMENDED VENTILATION STRATEGIES FOR ENERGY-EFFICIENT PRODUCTION HOMES  

E-Print Network [OSTI]

-port exhaust ventilation fan, and that builders offer balanced heat- recovery ventilation to buyers

13

Classroom HVAC: Improving ventilation and saving energy -- field study plan  

E-Print Network [OSTI]

in this study. Classroom HVAC: Improving Ventilation andV8doc.sas.com/sashtml. Classroom HVAC: Improving VentilationBerkeley, CA 94720. Classroom HVAC: Improving Ventilation

Apte, Michael G.; Faulkner, David; Hodgson, Alfred T.; Sullivan, Douglas P.

2004-01-01T23:59:59.000Z

14

Indoor Air Quality and Ventilation in Residential Deep Energy Retrofits  

SciTech Connect (OSTI)

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

Less, Brennan; Walker, Iain

2014-06-01T23:59:59.000Z

15

Industrial Ventilation Statistics Confirm Energy Savings Opportunity  

E-Print Network [OSTI]

is based on installed on-demand ventilation systems, where sensors and PLC are installed with each system, so data is easily collected. Another critical factor for effective dust collecting is proper air velocities in duct system. Having measured air... of the cutting tool is active or not. Information from the sensor is transmitted to the Omron PLC. The Omron PLC saves data in binary form every 5 minutes (24/7) to the CompactFlash card (a similar card is used in digital cameras) along with the time...

Litomisky, A.

2006-01-01T23:59:59.000Z

16

Multifamily Ventilation - Best Practice? | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't32Department ofMoving Away fromMultifamily Ventilation - Best

17

Classroom HVAC: Improving ventilation and saving energy -- field study plan  

SciTech Connect (OSTI)

The primary goals of this research effort are to develop, evaluate, and demonstrate a very practical HVAC system for classrooms that consistently provides classrooms (CRs) with the quantity of ventilation in current minimum standards, while saving energy, and reducing HVAC-related noise levels. This research is motivated by the public benefits of energy efficiency, evidence that many CRs are under-ventilated, and public concerns about indoor environmental quality in CRs. This document provides a summary of the detailed plans developed for the field study that will take place in 2005 to evaluate the energy and IAQ performance of a new classroom HVAC technology. The field study will include measurements of HVAC energy use, ventilation rates, and IEQ conditions in 10 classrooms with the new HVAC technology and in six control classrooms with a standard HVAC system. Energy use and many IEQ parameters will be monitored continuously, while other IEQ measurements will be will be performed seasonally. Continuously monitored data will be remotely accessed via a LonWorks network. Instrument calibration plans that vary with the type of instrumentation used are established. Statistical tests will be employed to compare energy use and IEQ conditions with the new and standard HVAC systems. Strengths of this study plan include the collection of real time data for a full school year, the use of high quality instrumentation, the incorporation of many quality control measures, and the extensive collaborations with industry that limit costs to the sponsors.

Apte, Michael G.; Faulkner, David; Hodgson, Alfred T.; Sullivan, Douglas P.

2004-10-14T23:59:59.000Z

18

A simplified model for estimating population-scale energy impacts of building envelope air-tightening and mechanical ventilation retrofits  

SciTech Connect (OSTI)

Changing the air exchange rate of a home (the sum of the infiltration and mechanical ventilation airflow rates) affects the annual thermal conditioning energy. Large-scale changes to air exchange rates of the housing stock can significantly alter the residential sector's energy consumption. However, the complexity of existing residential energy models is a barrier to the accurate quantification of the impact of policy changes on a state or national level. The Incremental Ventilation Energy (IVE) model developed in this study combines the output of simple air exchange models with a limited set of housing characteristics to estimate the associated change in energy demand of homes. The IVE model was designed specifically to enable modellers to use existing databases of housing characteristics to determine the impact of ventilation policy change on a population scale. The IVE model estimates of energy change when applied to US homes with limited parameterisation are shown to be comparable to the estimates of a well-validated, complex residential energy model.

Logue, J. M.; Turner, W. J.N.; Walker, I. S.; Singer, B. C.

2015-01-01T23:59:59.000Z

19

Recovering Energy From Ventilation and Process Airstreams  

E-Print Network [OSTI]

. In this paper I will touch on condensa tion and electrostatic precipitation as methods that can be used to collect and reuse in some form, hydrocarbons from process stacks. HEAT EXCHANGERS Plate-~ype, air-to-air heat exchangers move hot, dirty exhaust... in this situation can be less than 6 months. Where payback is based on . solvent recovery alone, it is normally in the 12 to 24 month range. Another method of energy savings occurs when a two-stage electrostatic precipitator is added in process stacks. If thes...

Cheney, W. A.

20

Ventilation System Basics | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500IIVasudha Patri MechanicalofVehicles - ORNLVentilation System

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Summary of Workshop: Barriers to Energy Efficient Residential Ventilation  

SciTech Connect (OSTI)

The objectives for this workshop were to bring together those with different viewpoints on the implementation of energy efficient ventilation in homes to share their perspectives. The primary benefit of the workshop is to allow the participants to get a broader understanding of the issues involved and thereby make themselves more able to achieve their own goals in this area. In order to achieve this objective each participant was asked to address four objectives from their point of view: (1) Drivers for energy efficient residential ventilation: Why is this an important issue? Who cares about it? Where is the demand: occupants, utilities, regulation, programs, etc? What does sustainability mean in this context? (2) Markets & Technologies: What products, services and systems are out there? What kinds of things are in the pipeline? What is being installed now? Are there regional or other trends? What are the technology interactions with other equipment and the envelope? (3) Barriers to Implementation: What is stopping decision makers from implementing energy-efficient residential ventilation systems? What kind of barriers are there: technological, cost, informational, structural, etc. What is the critical path? (4) Solutions: What can be done to overcome the barriers and how can/should we do it? What is the role of public vs. private institutions? Where can investments be made to save energy while improving the indoor environment? Ten participants prepared presentations for the workshop. Those presentations are included in sections at the end of this workshop report. These presentations provided the principal context for the discussions that happened during the workshop. Critical path issues were raised and potential solutions discussed during the workshop. As a secondary objective they have listed key issues and some potential consensus items which resulted from the discussions.

Sherman, Max; Sherman, Max

2008-01-10T23:59:59.000Z

22

Literature Review of Data on the Incremental Costs to Design and Build Low-Energy Buildings  

SciTech Connect (OSTI)

This document summarizes findings from a literature review into the incremental costs associated with low-energy buildings. The goal of this work is to help establish as firm an analytical foundation as possible for the Building Technology Program's cost-effective net-zero energy goal in the year 2025.

Hunt, W. D.

2008-05-14T23:59:59.000Z

23

First BPA customer schedules energy in 15-minute increments  

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

Articles (by tag) Lineman shares life-saving skills with electrical workers in Suriname Thursday, January 08, 2015 NWPPA spotlights synchrophasors, energy-saving competition...

24

Impact of Residential Mechanical Ventilation on Energy Cost and Humidity Control  

SciTech Connect (OSTI)

The DOE Building America program has been conducting research leading to cost effective high performance homes since the early 1990's. Optimizing whole house mechanical ventilation as part of the program's systems engineered approach to constructing housing has been an important subject of the program's research. Ventilation in residential buildings is one component of an effective, comprehensive strategy for creation and maintenance of a comfortable and healthy indoor air environment. The study described in this white paper is based on building energy modeling with an important focus on the indoor humidity impacts of ventilation. The modeling tools used were EnergyPlus version 7.1 (E+) and EnergyGauge USA (EGUSA). Twelve U.S. cities and five climate zones were represented. A total of 864 simulations (2*2*3*3*12= 864) were run using two building archetypes, two building leakage rates, two building orientations, three ventilation systems, three ventilation rates, and twelve climates.

Martin, E.

2014-01-01T23:59:59.000Z

25

Incremental-like Bundle Methods with Application to Energy Planning  

E-Print Network [OSTI]

‡Claudia Sagastizábal: CEPEL, Electric Energy Research Center, Eletrobrás Group. On ... of an alternative method, working with function evaluations of unknown and vanishing ... During each outage, one third of the reactor fuel is renewed. ..... Bundle data in (4) can be represented alternatively, by referring the infor-.

2009-10-01T23:59:59.000Z

26

Project title: Natural ventilation, solar heating and integrated low-energy building design  

E-Print Network [OSTI]

emissions targets. That is why the Cambridge-MIT Institute set up a project to design buildings that consume less energy. The Challenge Their work focuses on the design of energy efficient buildings that use natural ventilation processes, solar... Awards E-stack brings a breath of fresh air to UK schools HOME ABOUT US FUNDING OPPORTUNITIES PROJECTS EDUCATION NEWS EVENTS DOWNLOADS CONTACT US PROJECTS Natural Ventilation Solar Heating and Integrated Low-Energy Building Design SEARCH: Go Page 1...

2009-07-10T23:59:59.000Z

27

Particle transport in low-energy ventilation systems. Part 1: theory of steady states  

E-Print Network [OSTI]

of the global population. According to the Energy Information Administration (http://www.eia.doe.gov/) the US of this energy is spent on ventilation of buildings with summer time cooling account for almost 10% of the US total energy budget. To reduce energy consumption various low-energy systems such as displacement

Bolster, Diogo

28

NUMERICAL ANALYSIS OF VENTILATION TEMPERATURES REGULATION BY ENERGY STORAGE IN PHASE CHANGE  

E-Print Network [OSTI]

NUMERICAL ANALYSIS OF VENTILATION TEMPERATURES REGULATION BY ENERGY STORAGE IN PHASE CHANGE, the use of thermal energy storage (TES) systems receives increasing interest. To allow high or low temperature thermal energy to be stored for later use, a heat or cool storage with PCM could be designed; Zhu

Paris-Sud XI, Université de

29

Optimization of Ventilation Energy Demands and Indoor Air Quality in High-Performance Homes  

SciTech Connect (OSTI)

High-performance homes require that ventilation energy demands and indoor air quality (IAQ) be simultaneously optimized. We attempted to bridge these two areas by conducting tests in a research house located in Oak Ridge, TN, that was 20 months old, energy-efficient (i.e., expected to consume 50% less energy than a house built per the 2006 IRC), tightly-built (i.e., natural ventilation rate ~0.02 h-1), unoccupied, and unfurnished. We identified air pollutants of concern in the test home that could generally serve as indicators of IAQ, and conduced field experiments and computer simulations to determine the effectiveness and energy required by various techniques that lessened the concentration of these contaminants. Formaldehyde was selected as the main pollutant of concern among the contaminants that were sampled in the initial survey because it was the only compound that showed concentrations that were greater than the recommended exposure levels. Field data indicate that concentrations were higher during the summer primarily because emissions from sources rise with increases in temperature. Furthermore, supply ventilation and gas-phase filtration were effective means to reduce formaldehyde concentrations; however, exhaust ventilation had minimal influence on this pollutant. Results from simulations suggest that formaldehyde concentrations obtained while ventilating per ASHRAE 62.2-2010 could be decreased by about 20% from May through September through three strategies: 1) increasing ASHRAE supply ventilation by a factor of two, 2) reducing the thermostat setpoint from 76 to 74 F, or 3) running a gas-phase filtration system while decreasing supply ventilation per ASHRAE by half. In the mixed-humid climate of Oak Ridge, these strategies caused increases in electricity cost of ~$5 to ~$15/month depending on outdoor conditions.

Hun, Diana E [ORNL; Jackson, Mark C [University of Texas at Austin; Shrestha, Som S [ORNL

2014-01-01T23:59:59.000Z

30

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

31

Energy and air quality implications of passive stack ventilation in residential buildings  

E-Print Network [OSTI]

Energy and air quality implications of passive stack ventilation in residential buildings Laboratory is an equal opportunity employer. #12;Energy and air quality implications of passive stack in residential buildings and compliance is normally achieved with fully mechanical whole-house systems; however

32

New Air Cleaning Strategies for Reduced Commercial Building Ventilation Energy ? FY11 Final Report  

SciTech Connect (OSTI)

The research carried out in this project focuses on developing novel volatile organic compounds (VOCs) air cleaning technologies needed to enable energy-saving reductions in ventilation rates. we targeted a VOC air cleaning system that could enable a 50% reduction in ventilation rates. In a typical commercial HVAC system that provides a mixture of recirculated and outdoor air, a VOC air cleaner in the supply airstream must have a 15% to 20% VOC removal efficiency to counteract a 50% reduction in outdoor air supply.

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

2011-10-31T23:59:59.000Z

33

Evaluation of energy savings related to building envelope retrofit techniques and ventilation strategies for low energy cooling in  

E-Print Network [OSTI]

Evaluation of energy savings related to building envelope retrofit techniques and ventilation strategies for low energy cooling in offices and commercial sector Laurent Grignon-Massé, Dominique Marchio-use Efficiency Research Group Abstract The energy savings achievable in the end-use space cooling depend

Paris-Sud XI, Université de

34

Recommended Changes to Specifications for Demand Controlled Ventilation in California's Title 24 Building Energy Efficiency Standards  

SciTech Connect (OSTI)

In demand-controlled ventilation (DCV), rates of outdoor air ventilation are automatically modulated as occupant density varies. The objective is to keep ventilation rates at or above design specifications and code requirements and also to save energy by avoiding excessive ventilation rates. DCV is most often used in spaces with highly variable and sometime dense occupancy. In almost all cases, carbon dioxide (CO{sub 2}) sensors installed in buildings provide the signal to the ventilation rate control system. People produce and exhale CO{sub 2} as a consequence of their normal metabolic processes; thus, the concentrations of CO{sub 2} inside occupied buildings are higher than the concentrations of CO{sub 2} in the outdoor air. The magnitude of the indoor-outdoor CO{sub 2} concentration difference decreases as the building's ventilation rate per person increases. The difference between the indoor and outdoor CO{sub 2} concentration is also a proxy for the indoor concentrations of other occupant-generated bioeffluents, such as body odors. Reviews of the research literature on DCV indicate a significant potential for energy savings, particularly in buildings or spaces with a high and variable occupancy. Based on modeling, cooling energy savings from applications of DCV are as high as 20%. With support from the California Energy Commission and the U.S. Department of Energy, the Lawrence Berkeley National Laboratory has performed research on the performance of CO{sub 2} sensing technologies and optical people counters for DCV. In addition, modeling was performed to evaluate the potential energy savings and cost effectiveness of using DCV in general office spaces within the range of California climates. The above-described research has implications for the specifications pertaining to DCV in section 121 of the California Title 24 Standard. Consequently, this document suggests possible changes in these specifications based on the research findings. The suggested changes in specifications were developed in consultation with staff from the Iowa Energy Center who evaluated the accuracy of new CO{sub 2} sensors in laboratory-based research. In addition, staff of the California Energy Commission, and their consultants in the area of DCV, provided input for the suggested changes in specifications.

Fisk, William J.; Sullivan, Douglas P.; Faulkner, David

2010-04-08T23:59:59.000Z

35

A Double-Deletion Method to Quantifying Incremental Binding Energies in Proteins from Experiment: Example of a Destabilizing Hydrogen  

E-Print Network [OSTI]

A Double-Deletion Method to Quantifying Incremental Binding Energies in Proteins from Experiment: Example of a Destabilizing Hydrogen Bonding Pair Luis A. Campos,*y Santiago Cuesta-Lo´pez,*z Jon Lo of a specific hydrogen bond in apoflavodoxin to protein stability is investigated by combining theory

Sancho, Javier

36

Hospital ventilation standards and energy conservation: chemical contamination of hospital air. Final report  

SciTech Connect (OSTI)

In an era of increasing energy conservation consciousness, a critical reassessment of the validity of hospital ventilation and thermal standards is made. If current standards are found to be excessively conservative, major energy conservation measures could be undertaken by rebalancing and/or modification of current HVAC systems. To establish whether or not reducing ventilation rates would increase airborne chemical contamination to unacceptable levels, a field survey was conducted to develop an inventory and dosage estimates of hospital generated airborne chemical contaminants to which patients, staff, and visitors are exposed. The results of the study are presented. Emphasis is on patient exposure, but an examination of occupational exposure was also made. An in-depth assessment of the laboratory air environment is documented. Housekeeping products used in survey hospitals, hazardous properties of housekeeping chemicals and probable product composition are discussed in the appendices.

Rainer, D.; Michaelsen, G.S.

1980-03-01T23:59:59.000Z

37

Energy and first costs analysis of displacement and mixing ventilation systems for U.S. buildings and climates  

E-Print Network [OSTI]

In the past two decades, displacement ventilation has been increasingly used in Scandinavia and Western Europe to improve indoor air quality and to save energy. By using a detailed computer simulation method, this study ...

Hu, ShiPing, 1970-

1999-01-01T23:59:59.000Z

38

Analysis of Energy Recovery Ventilator Savings for Texas Buildings  

E-Print Network [OSTI]

.S. Environmental Protection Agency and U.S. Department of Energy, Publication No. DOE/GO-102003-1774. Prepared by National Renewable Energy Laboratory, Golden CO, October 2003. Available at http://www.nrel.gov/docs/fy04osti/34349.pdf APPENDIX A: ANALYSIS...

Christman, K. D.; Haberl, J. S.; Claridge, D. E.

39

DOE Zero Energy Ready Home: Ventilation and Filtration Strategies with  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana. DOCUMENTSof EnergyAllianceDepartment of Energy SpiritIndoor airPLUS

40

DOE Zero Energy Ready Home: Ventilation and Filtration Strategies...  

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

We have these homes so well-air-sealed, we need to look at things like good source control products. Obviously, these homes are so efficient, they're zero energy ready, we have...

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Heating, Ventilation, and Air Conditioning Projects | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana.ProgramJulietip sheetK-4In 2013 many autoThisTheDecember 29,13-Energy

42

Ventilation Industrielle de Bretagne VIB | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov PtyInformation UCOpen EnergyVelankani Group Jump to:Venti Energy Jump

43

Case Study - The Challenge: Improving Ventilation System Energy Efficiency  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' ResearchTheMarketing,Energy-ChevronSeveral salesCarolyn L.in a Textile Plant |

44

Heating Ventilation and Air Conditioning Efficiency | Department of Energy  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelinesProvedDecember 2005DepartmentDecemberGlossary ofGroundwaterHCHearingsHeating OilHeating

45

Smart Ventilation (RIVEC) - 2014 BTO Peer Review | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up from the GridwiseSite Management GuideReliability | Department of Energy

46

Improving Ventilation and Saving Energy: Final Report on Indoor Environmental Quality and Energy Monitoring in Sixteen Relocatable Classrooms  

SciTech Connect (OSTI)

An improved HVAC system for portable classrooms was specified to address key problems in existing units. These included low energy efficiency, poor control of and provision for adequate ventilation, and excessive acoustic noise. Working with industry, a prototype improved heat pump air conditioner was developed to meet the specification. A one-year measurement-intensive field-test of ten of these IHPAC systems was conducted in occupied classrooms in two distinct California climates. These measurements are compared to those made in parallel in side by side portable classrooms equipped with standard 10 SEER heat pump air conditioner equipment. The IHPAC units were found to work as designed, providing predicted annual energy efficiency improvements of about 36 percent to 42 percent across California's climate zones, relative to 10 SEER units. Classroom ventilation was vastly improved as evidenced by far lower indoor minus outdoor CO2 concentrations. TheIHPAC units were found to provide ventilation that meets both California State energy and occupational codes and the ASHRAE minimum ventilation requirements; the classrooms equipped with the 10 SEER equipment universally did not meet these targets. The IHPAC system provided a major improvement in indoor acoustic conditions. HVAC system generated background noise was reduced in fan-only and fan and compressor modes, reducing the nose levels to better than the design objective of 45 dB(A), and acceptable for additional design points by the Collaborative on High Performance Schools. The IHPAC provided superior ventilation, with indoor minus outdoor CO2 concentrations that showed that the Title 24 minimum ventilation requirement of 15 CFM per occupant was nearly always being met. The opposite was found in the classrooms utilizing the 10 SEER system, where the indoor minus outdoor CO2 concentrations frequently exceeded levels that reflect inadequate ventilation. Improved ventilation conditions in the IHPAC lead to effective removal of volatile organic compounds and aldehydes, on average lowering the concentrations by 57 percent relative to the levels in the 10 SEER classrooms. The average IHPAC to 10 SEER formaldehyde ratio was about 67 percent, indicating only a 33 percent reduction of this compound in indoor air. The IHPAC thermal control system provided less variability in occupied classroom temperature than the 10 SEER thermostats. The average room temperatures in all seasons tended to be slightly lower in the IHPAC classrooms, often below the lower limit of the ASHRAE 55 thermal comfort band. State-wide and national energy modeling provided conservative estimates of potential energy savings by use of the IHPAC system that would provide payback a the range of time far lower than the lifetime of the equipment. Assuming electricity costs of $0.15/kWh, the perclassroom range of savings is from about $85 to $195 per year in California, and about $89 to $250 per year in the U.S., depending upon the city. These modelsdid not include the non-energy benefits to the classrooms including better air quality and acoustic conditions that could lead to improved health and learning in school. Market connection efforts that were part of the study give all indication that this has been a very successful project. The successes include the specification of the IHPAC equipment in the CHPS portable classroom standards, the release of a commercial product based on the standards that is now being installed in schools around the U.S., and the fact that a public utility company is currently considering the addition of the technology to its customer incentive program. These successes indicate that the IHPAC may reach its potential to improve ventilation and save energy in classrooms.

Apte, Michael G.; Norman, Bourassa; Faulkner, David; Hodgson, Alfred T.; Hotchi, Toshfumi; Spears, Michael; Sullivan, Douglas P.; Wang, Duo

2008-04-04T23:59:59.000Z

47

Multifamily Ventilation Retrofit Strategies  

SciTech Connect (OSTI)

In multifamily buildings, central ventilation systems often have poor performance, overventilating some portions of the building (causing excess energy use), while simultaneously underventilating other portions (causing diminished indoor air quality). BSC and Innova Services Corporation performed a series of field tests at a mid-rise test building undergoing a major energy audit and retrofit, which included ventilation system upgrades.

Ueno, K.; Lstiburek, J.; Bergey, D.

2012-12-01T23:59:59.000Z

48

Improving Ventilation and Saving Energy: Laboratory Study in aModular Classroom Test Bed  

SciTech Connect (OSTI)

The primary goals of this research effort were to develop, evaluate, and demonstrate a practical HVAC system for classrooms that consistently provides classrooms with the quantity of ventilation in current minimum standards, while saving energy, and reducing HVAC-related noise levels. This research was motivated by several factors, including the public benefits of energy efficiency, evidence that many classrooms are under-ventilated, and public concerns about indoor environmental quality in classrooms. This project involved the installation and verification of the performance of an Improved Heat Pump Air Conditioning (IHPAC) system, and its comparison, a standard HVAC system having an efficiency of 10 SEER. The project included the verification of the physical characteristics suitable for direct replacement of existing 10 SEER systems, quantitative demonstration of improved energy efficiency, reduced acoustic noise levels, quantitative demonstration of improved ventilation control, and verification that the system would meet temperature control demands necessary for the thermal comfort of the occupants. Results showed that the IHPAC met these goals. The IHPAC was found to be a direct bolt-on replacement for the 10 SEER system. Calculated energy efficiency improvements based on many days of classroom cooling or heating showed that the IHPAC system is about 44% more efficient during cooling and 38% more efficient during heating than the 10 SEER system. Noise reduction was dramatic, with measured A-weighed sound level for fan only operation conditions of 34.3 dB(A), a reduction of 19 dB(A) compared to the 10 SEER system. Similarly, the IHPAC stage-1 and stage-2 compressor plus fan sound levels were 40.8 dB(A) and 42.7 dB(A), reductions of 14 and 13 dB(A), respectively. Thus, the IHPAC is 20 to 35 times quieter than the 10 SEER systems depending upon the operation mode. The IHPAC system met the ventilation requirements and was able to provide consistent outside air supply throughout the study. Indoor CO2 levels with simulated occupancy were maintained below 1000 ppm. Finally temperature settings were met and controlled accurately. The goals of the laboratory testing phase were met and this system is ready for further study in a field test of occupied classrooms.

Apte, Michael G.; Buchanan, Ian S.; Faulkner, David; Fisk,William J.; Lai, Chi-Ming; Spears, Michael; Sullivan, Douglas P.

2005-08-01T23:59:59.000Z

49

DEMAND CONTROLLED VENTILATION AND CLASSROOM VENTILATION  

SciTech Connect (OSTI)

This document summarizes a research effort on demand controlled ventilation and classroom ventilation. The research on demand controlled ventilation included field studies and building energy modeling. Major findings included: ? The single-location carbon dioxide sensors widely used for demand controlled ventilation frequently have large errors and will fail to effectively control ventilation rates (VRs).? Multi-location carbon dioxide measurement systems with more expensive sensors connected to multi-location sampling systems may measure carbon dioxide more accurately.? Currently-available optical people counting systems work well much of the time but have large counting errors in some situations. ? In meeting rooms, measurements of carbon dioxide at return-air grilles appear to be a better choice than wall-mounted sensors.? In California, demand controlled ventilation in general office spaces is projected to save significant energy and be cost effective only if typical VRs without demand controlled ventilation are very high relative to VRs in codes. Based on the research, several recommendations were developed for demand controlled ventilation specifications in the California Title 24 Building Energy Efficiency Standards.The research on classroom ventilation collected data over two years on California elementary school classrooms to investigate associations between VRs and student illness absence (IA). Major findings included: ? Median classroom VRs in all studied climate zones were below the California guideline, and 40percent lower in portable than permanent buildings.? Overall, one additional L/s per person of VR was associated with 1.6percent less IA. ? Increasing average VRs in California K-12 classrooms from the current average to the required level is estimated to decrease IA by 3.4percent, increasing State attendance-based funding to school districts by $33M, with $6.2 M in increased energy costs. Further VR increases would provide additional benefits.? Confirming these findings in intervention studies is recommended. ? Energy costs of heating/cooling unoccupied classrooms statewide are modest, but a large portion occurs in relatively few classrooms.

Fisk, William J.; Mendell, Mark J.; Davies, Molly; Eliseeva, Ekaterina; Faulkner, David; Hong, Tienzen; Sullivan, Douglas P.

2014-01-06T23:59:59.000Z

50

The Impact of CO2-Based Demand-Controlled Ventilation on Energy Consumptions for Air Source Heat Pumps in Schools  

E-Print Network [OSTI]

There have been increasingly growing concerns for many years over the quality of the air inside buildings and the associated energy use. The CO2-based demand-controlled ventilation DCV offers a great opportunity to reduce energy consumption in HVAC...

AlRaees, N.; Nassif, N.

2013-01-01T23:59:59.000Z

51

Proceedings of the Intern. Conference on Passive and Low Energy Architecture (PLEA), Toulouse (2002) 577 Cost efficiency of ventilation systems  

E-Print Network [OSTI]

Proceedings of the Intern. Conference on Passive and Low Energy Architecture (PLEA), Toulouse (2002 of a corresponding low-energy house have been per- formed for a full heating period. They reproduce measurements from, air quality, control of humidity) [1, 2]. In such houses, the ventilation and infiltration losses

Gieseler, Udo D. J.

52

Development of a High Latent Effectiveness Energy Recovery Ventilator with Integration into Rooftop Package Equipment  

SciTech Connect (OSTI)

This Final Report covers the Cooperative Program carried out to design and optimize an enhanced flat-plate energy recovery ventilator and integrate it into a packaged unitary (rooftop) air conditioning unit. The project objective was to optimize the design of a flat plate energy recovery ventilator (ERV) core that compares favorably to flat plate air-to-air heat exchanger cores on the market and to cost wise to small enthalpy wheel devices. The benefits of an integrated unit incorporating an enhanced ERV core and a downsized heating/cooling unit were characterized and the design of an integrated unit considering performance and cost was optimized. Phase I was to develop and optimize the design of a membrane based heat exchanger core. Phase II was the creation and observation of a system integrated demonstrator unit consisting of the Enhanced Energy Recovery Ventilator (EERV) developed in Phase I coupled to a standard Carrier 50HJ rooftop packaged unitary air conditioning unit. Phase III was the optimization of the system prior to commercialization based on the knowledge gained in Phase II. To assure that the designs chosen have the possibility of meeting cost objectives, a preliminary manufacturability and production cost study was performed by the Center for Automation Technologies at RPI. Phase I also included a preliminary design for the integrated unit to be further developed in Phase II. This was to assure that the physical design of the heat exchanger designed in Phase I would be acceptable for use in Phase II. An extensive modeling program was performed by the Center for Building Performance & Diagnostics of CMU. Using EnergyPlus as the software, a typical office building with multiple system configurations in multiple climatic zones in the US was simulated. The performance of energy recovery technologies in packaged rooftop HVAC equipment was evaluated. The experimental program carried out in Phases II and III consisted of fabricating and testing a demonstrator unit using Carrier Comfort Network (CCN) based controls. Augmenting the control signals, CCN was also used to monitor and record additional performance data that supported modeling and conceptual understanding. The result of the testing showed that the EERV core developed in Phase I recovered energy in the demonstrator unit at the expected levels based on projections. In fact, at near-ARI conditions the core recovered about one ton of cooling enthalpy when operating with a three-ton rooftop packaged unit.

Gregory M. Dobbs; Norberto O. Lemcoff; Frederick J. Cogswell; Jeffrey T. Benolt

2006-03-01T23:59:59.000Z

53

Energy Code Enforcement Training Manual : Covering the Washington State Energy Code and the Ventilation and Indoor Air Quality Code.  

SciTech Connect (OSTI)

This manual is designed to provide building department personnel with specific inspection and plan review skills and information on provisions of the 1991 edition of the Washington State Energy Code (WSEC). It also provides information on provisions of the new stand-alone Ventilation and Indoor Air Quality (VIAQ) Code.The intent of the WSEC is to reduce the amount of energy used by requiring energy-efficient construction. Such conservation reduces energy requirements, and, as a result, reduces the use of finite resources, such as gas or oil. Lowering energy demand helps everyone by keeping electricity costs down. (It is less expensive to use existing electrical capacity efficiently than it is to develop new and additional capacity needed to heat or cool inefficient buildings.) The new VIAQ Code (effective July, 1991) is a natural companion to the energy code. Whether energy-efficient or not, an homes have potential indoor air quality problems. Studies have shown that indoor air is often more polluted than outdoor air. The VIAQ Code provides a means of exchanging stale air for fresh, without compromising energy savings, by setting standards for a controlled ventilation system. It also offers requirements meant to prevent indoor air pollution from building products or radon.

Washington State Energy Code Program

1992-05-01T23:59:59.000Z

54

Meeting Residential Ventilation Standards Through Dynamic Control of Ventilation Systems  

SciTech Connect (OSTI)

Existing ventilation standards, including American Society of Heating, Refrigerating, and Air-conditioning Engineers (ASHRAE) Standard 62.2, specify continuous operation of a defined mechanical ventilation system to provide minimum ventilation, with time-based intermittent operation as an option. This requirement ignores several factors and concerns including: other equipment such as household exhaust fans that might incidentally provide ventilation, negative impacts of ventilation when outdoor pollutant levels are high, the importance of minimizing energy use particularly during times of peak electricity demand, and how the energy used to condition air as part of ventilation system operation changes with outdoor conditions. Dynamic control of ventilation systems can provide ventilation equivalent to or better than what is required by standards while minimizing energy costs and can also add value by shifting load during peak times and reducing intake of outdoor air contaminants. This article describes the logic that enables dynamic control of whole-house ventilation systems to meet the intent of ventilation standards and demonstrates the dynamic ventilation system control concept through simulations and field tests of the Residential Integrated Ventilation-Energy Controller (RIVEC).

Sherman, Max H.; Walker, Iain S.

2011-04-01T23:59:59.000Z

55

Ventilative cooling  

E-Print Network [OSTI]

This thesis evaluates the performance of daytime and nighttime passive ventilation cooling strategies for Beijing, Shanghai and Tokyo. A new simulation method for cross-ventilated wind driven airflow is presented . This ...

Graça, Guilherme Carrilho da, 1972-

1999-01-01T23:59:59.000Z

56

HOW THE LEED VENTILATION CREDIT IMPACTS ENERGY CONSUMPTION OF GSHP SYSTEMS A CASE STUDY FOR PRIMARY SCHOOLS  

SciTech Connect (OSTI)

This paper presents a study on the impacts of increased outdoor air (OA) ventilation on the performance of ground-source heat pump (GSHP) systems that heat and cool typical primary schools. Four locations Phoenix, Miami, Seattle, and Chicago are selected in this study to represent different climate zones in the United States. eQUEST, an integrated building and HVAC system energy analysis program, is used to simulate a typical primary school and the GSHP system at the four locations with minimum and 30% more than minimum OA ventilation. The simulation results show that, without an energy recovery ventilator, the 30% more OA ventilation results in an 8.0 13.3% increase in total GSHP system energy consumption at the four locations. The peak heating and cooling loads increase by 20.2 30% and 14.9 18.4%, respectively, at the four locations. The load imbalance of the ground heat exchanger is increased in hot climates but reduced in mild and cold climates.

Liu, Xiaobing [ORNL] [ORNL

2011-01-01T23:59:59.000Z

57

Changing ventilation rates in U.S. offices: Implications for health, work performance, energy, and associated economics  

SciTech Connect (OSTI)

This paper provides quantitative estimates of benefits and costs of providing different amounts of outdoor air ventilation in U.S. offices. For four scenarios that modify ventilation rates, we estimated changes in sick building syndrome (SBS) symptoms, work performance, short-term absence, and building energy consumption. The estimated annual economic benefits were $13 billion from increasing minimum ventilation rates (VRs) from 8 to 10 L/s per person, $38 billion from increasing minimum VRs from 8 to 15 L/s per person, and $33 billion from increasing VRs by adding outdoor air economizers for the 50% of the office floor area that currently lacks economizers. The estimated $0.04 billion in annual energy-related benefits of decreasing minimum VRs from 8 to 6.5 L/s per person are very small compared to the projected annual costs of $12 billion. Benefits of increasing minimum VRs far exceeded energy costs while adding economizers yielded health, performance, and absence benefits with energy savings.

Fisk, William; Black, Douglas; Brunner, Gregory

2011-07-01T23:59:59.000Z

58

Enthalpy Wheels Come of Age: Applying Energy Recovery Ventilation to Hospitality Venues in Hot, Humid Climate  

E-Print Network [OSTI]

ventilation to hospitality venues in hot, humid climates need not be complex. This paper proposes guidelines that can facilitate application of the technology by specifiers or other construction professionals. These guidelines address evaluation of typical...

Wellford, B. W.

2000-01-01T23:59:59.000Z

59

Energy and air quality implications of passive stack ventilation in residential buildings  

E-Print Network [OSTI]

scaling the passive stack diameter with house size (floora single-story house ventilated by a passive stack with andTable 1: Passive stack diameters scaling with house size

Mortensen, Dorthe Kragsig

2011-01-01T23:59:59.000Z

60

The Incremental Benefits of the Nearest Neighbor Forecast of U.S. Energy Commodity Prices  

E-Print Network [OSTI]

This thesis compares the simple Autoregressive (AR) model against the k- Nearest Neighbor (k-NN) model to make a point forecast of five energy commodity prices. Those commodities are natural gas, heating oil, gasoline, ethanol, and crude oil...

Kudoyan, Olga

2012-02-14T23:59:59.000Z

Note: This page contains sample records for the topic "incremental ventilation energy" 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

A Model for Evaluation of Life-Cycle Energy Savings of Occupancy Sensors for Control of Lighting and Ventilation in Office Buildings  

E-Print Network [OSTI]

Lighting and ventilation represent the majority of the air conditioning loads in office buildings in hot humid climates. Use of motion sensors is one way to minimize the energy used for these loads. This paper describes the methods used...

Degelman, L. O.

2000-01-01T23:59:59.000Z

62

Equivalence in Ventilation and Indoor Air Quality  

SciTech Connect (OSTI)

We ventilate buildings to provide acceptable indoor air quality (IAQ). Ventilation standards (such as American Society of Heating, Refrigerating, and Air-Conditioning Enginners [ASHRAE] Standard 62) specify minimum ventilation rates without taking into account the impact of those rates on IAQ. Innovative ventilation management is often a desirable element of reducing energy consumption or improving IAQ or comfort. Variable ventilation is one innovative strategy. To use variable ventilation in a way that meets standards, it is necessary to have a method for determining equivalence in terms of either ventilation or indoor air quality. This study develops methods to calculate either equivalent ventilation or equivalent IAQ. We demonstrate that equivalent ventilation can be used as the basis for dynamic ventilation control, reducing peak load and infiltration of outdoor contaminants. We also show that equivalent IAQ could allow some contaminants to exceed current standards if other contaminants are more stringently controlled.

Sherman, Max; Walker, Iain; Logue, Jennifer

2011-08-01T23:59:59.000Z

63

Why We Ventilate  

SciTech Connect (OSTI)

It is widely accepted that ventilation is critical for providing good indoor air quality (IAQ) in homes. However, the definition of"good" IAQ, and the most effective, energy efficient methods for delivering it are still matters of research and debate. This paper presents the results of work done at the Lawrence Berkeley National Lab to identify the air pollutants that drive the need for ventilation as part of a larger effort to develop a health-based ventilation standard. First, we present results of a hazard analysis that identified the pollutants that most commonly reach concentrations in homes that exceed health-based standards or guidelines for chronic or acute exposures. Second, we present results of an impact assessment that identified the air pollutants that cause the most harm to the U.S. population from chronic inhalation in residences. Lastly, we describe the implications of our findings for developing effective ventilation standards.

Logue, Jennifer M.; Sherman, Max H.; Price, Phil N.; Singer, Brett C.

2011-09-01T23:59:59.000Z

64

Ventilation technologies scoping study  

SciTech Connect (OSTI)

This document presents the findings of a scoping study commissioned by the Public Interest Energy Research (PIER) program of the California Energy Commission to determine what research is necessary to develop new residential ventilation requirements for California. This study is one of three companion efforts needed to complete the job of determining the needs of California, determining residential ventilation requirements, and determining appropriate ventilation technologies to meet these needs and requirements in an energy efficient manner. Rather than providing research results, this scoping study identifies important research questions along with the level of effort necessary to address these questions and the costs, risks, and benefits of pursuing alternative research questions. In approaching these questions and level of effort, feasibility and timing were important considerations. The Commission has specified Summer 2005 as the latest date for completing this research in time to update the 2008 version of California's Energy Code (Title 24).

Walker, Iain S.; Sherman, Max H.

2003-09-30T23:59:59.000Z

65

Effortless Incremental Design FMEA  

E-Print Network [OSTI]

effects analysis (FMEA) can be augmented to make incremental design FMEA much less of a burden for the

Christopher J. Price

1996-01-01T23:59:59.000Z

66

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

E-Print Network [OSTI]

):319-344. [3] CHEN Q, MORSER A, SUTER P. A numerical study of indoor air quality and thermal comfort under six kinds of air diffusion [J]. ASHRAE Transactions, 1992, 98 (1):203-217. [4] ETHERIDGE D W, SANDBERG M. Building Ventilation: Theory...

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

2006-01-01T23:59:59.000Z

67

Measure Guideline: Ventilation Cooling  

SciTech Connect (OSTI)

The purpose of this measure guideline on ventilation cooling is to provide information on a cost-effective solution for reducing cooling system energy and demand in homes located in hot-dry and cold-dry climates. This guideline provides a prescriptive approach that outlines qualification criteria, selection considerations, and design and installation procedures.

Springer, D.; Dakin, B.; German, A.

2012-04-01T23:59:59.000Z

68

Meeting Residential Ventilation Standards  

E-Print Network [OSTI]

, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by its trade name, trademark quality (IAQ), ventilation is a critical element for improving the energy efficiency of buildings. IAQ

69

Healthy Zero Energy Buildings (HZEB) Program - Cross-Sectional Study of Contaminant Levels, Source, Strengths, and Ventilation Rates in Retail Stores  

SciTech Connect (OSTI)

This field study measured ventilation rates and indoor air quality parameters in 21 visits to retail stores in California. The data was collected to guide the development of new, science-based commercial building ventilation rate standards that balance the dual objectives of increasing energy efficiency and maintaining acceptable indoor air quality. Data collection occurred between September 2011 and March 2013. Three types of stores participated in this study: grocery stores, furniture/hardware stores, and apparel stores. Ventilation rates and indoor air contaminant concentrations were measured on a weekday, typically between 9 am and 6 pm. Ventilation rates measured using a tracer gas decay method exceeded the minimum requirement of California’s Title 24 Standard in all but one store. Even though there was adequate ventilation according to Title 24, concentrations of formaldehyde, acetaldehyde, and acrolein exceeded the most stringent chronic health guidelines. Other indoor air contaminants measured included carbon dioxide (CO{sub 2}), carbon monoxide (CO), ozone (O{sub 3}), and particulate matter (PM). Concentrations of CO{sub 2} were kept low by adequate ventilation, and were assumed low also because the sampling occurred on a weekday when retail stores were less busy. CO concentrations were also low. The indoor-outdoor ratios of O{sub 3} showed that the first-order loss rate may vary by store trade types and also by ventilation mode (mechanical versus natural). Analysis of fine and ultrafine PM measurements showed that a substantial portion of the particle mass in grocery stores with cooking-related emissions was in particles less than 0.3 ?m. Stores without cooking as an indoor source had PM size distributions that were more similar indoors and outdoors. The whole-building emission rates of volatile organic compounds (VOCs) and PM were estimated from the measured ventilation rates and indoor and outdoor contaminant concentrations. Mass balance models were then used to determine the ventilation rates, filtration strategies, or source reductions needed to maintain indoor contaminant concentrations below reference levels. Several scenarios of potential concern were considered: (i) formaldehyde levels in furniture/hardware stores, (ii) contaminants associated with cooking (e.g., PM, acrolein, and acetaldehyde) in grocery stores, and (iii) outdoor contaminants (e.g., PM and O{sub 3}) impacting stores that use natural ventilation. Estimated formaldehyde emission rates suggest that retail stores would need to ventilate at levels far exceeding the current Title 24 requirement to lower indoor concentrations below California’s stringent formaldehyde reference level. Given the high costs of providing ventilation but only modest chronic health benefit is expected, effective source control is an attractive alternative, as demonstrated by some retail stores in this study. Predictions showed that grocery stores need MERV 13 air filters, instead of MERV 8 filters that are more commonly used, to maintain indoor PM at levels that meet the chronic health standards for PM. Exposure to acrolein is a potential health concern in grocery stores, and should be addressed by increasing the use of kitchen range hoods or improving their contaminant removal efficiency. In stores that rely on natural ventilation, indoor PM can be a health concern if the stores are located in areas with high outdoor PM. This concern may be addressed by switching to mechanical ventilation when the outdoor air quality is poor, while continuing natural ventilation when outdoor air quality is good.

Chan, Wanyu R.; Sidheswaran, Meera; Cohn, Sebastian; Sullivan, Douglas P.; Fisk, William

2014-02-01T23:59:59.000Z

70

E-Print Network 3.0 - adaptive support ventilation Sample Search...  

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

Summary: of the material on ventilation system design and maintenance is adapted from A Guide to Energy Efficient... Energy-Efficient Ventilation for Apartment Buildings 12......

71

Literature Review of Displacement Ventilation  

E-Print Network [OSTI]

is dependent on the flow rate from the diffuser, the temperature difference, and the diffuser type. #0;? The thermal plumes and supply air from diffusers play an important role in the displacement ventilation. #0;? It is necessary to carefully control... systems, although there are differences depending on the control strategies and the type of HVAC systems. In the energy calculation by Niu (1994), it is shown that the annual energy consumption of displacement ventilation with a water- cooled ceiling...

Cho, S.; Im, P.; Haberl, J. S.

72

BUILDING VENTILATION AND INDOOR AIR QUALITY PROGRAM. CHAPTER FROM ENERGY AND ENVIRONMENT DIVISION ANNUAL REPORT 1978  

E-Print Network [OSTI]

many hospitals for energy audits and for energy-conserving1980, will include an energy audit, modifications to theannotated bibliography of energy audit source materials will

Cairns, Elton J.

2011-01-01T23:59:59.000Z

73

Development of a Residential Integrated Ventilation Controller  

SciTech Connect (OSTI)

The goal of this study was to develop a Residential Integrated Ventilation Controller (RIVEC) to reduce the energy impact of required mechanical ventilation by 20percent, maintain or improve indoor air quality and provide demand response benefits. This represents potential energy savings of about 140 GWh of electricity and 83 million therms of natural gas as well as proportional peak savings in California. The RIVEC controller is intended to meet the 2008 Title 24 requirements for residential ventilation as well as taking into account the issues of outdoor conditions, other ventilation devices (including economizers), peak demand concerns and occupant preferences. The controller is designed to manage all the residential ventilation systems that are currently available. A key innovation in this controller is the ability to implement the concept of efficacy and intermittent ventilation which allows time shifting of ventilation. Using this approach ventilation can be shifted away from times of high cost or high outdoor pollution towards times when it is cheaper and more effective. Simulations, based on the ones used to develop the new residential ventilation requirements for the California Buildings Energy code, were used to further define the specific criteria and strategies needed for the controller. These simulations provide estimates of the energy, peak power and contaminant improvement possible for different California climates for the various ventilation systems. Results from a field test of the prototype controller corroborate the predicted performance.

Staff Scientist; Walker, Iain; Sherman, Max; Dickerhoff, Darryl

2011-12-01T23:59:59.000Z

74

HOSPITAL VENTILATION STANDARDS AND ENERGY CONSERVATION: CHEMICAL CONTAMINATION OF HOSPITAL AIR. FINAL REPORT.  

E-Print Network [OSTI]

STANDARDS AND ENERGY CONSERVATION: CHH1ICAL CONTAMINATION OFSTANDARDS AND ENERGY CONSERVATION CHEMICAL CONTAMINATION OFSTANDARDS AND ENERGY CONSERVATION: CHEMICAL CONTAMINATION OF

Rainer, David

2012-01-01T23:59:59.000Z

75

Tax Increment Financing (Louisiana)  

Broader source: Energy.gov [DOE]

Louisiana law provides for two types of Tax Increment Financing mechanisms: (1) property tax, also known as ad valorem, and (2) sales tax. Either form may be utilized to enhance an economic...

76

BUILDING VENTILATION AND INDOOR AIR QUALITY PROGRAM. CHAPTER FROM ENERGY AND ENVIRONMENT DIVISION ANNUAL REPORT 1978  

E-Print Network [OSTI]

energy audit provisions of the 1978 U, S, National Energy Act, Finally, also in 1979, the University

Cairns, Elton J.

2011-01-01T23:59:59.000Z

77

Webinar: Ventilation and Filtration Strategies with Indoor airPLUS and Zero Energy Ready Homes  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy Zero Energy Ready Home (ZERH) Program represents a whole new level of home performance, with rigorous requirements that ensure outstanding levels of energy savings,...

78

Residential ventilation standards scoping study  

SciTech Connect (OSTI)

The goals of this scoping study are to identify research needed to develop improved ventilation standards for California's Title 24 Building Energy Efficiency Standards. The 2008 Title 24 Standards are the primary target for the outcome of this research, but this scoping study is not limited to that timeframe. We prepared this scoping study to provide the California Energy Commission with broad and flexible options for developing a research plan to advance the standards. This document presents the findings of a scoping study commissioned by the Public Interest Energy Research (PIER) program of the California Energy Commission to determine what research is necessary to develop new residential ventilation requirements for California. This study is one of three companion efforts needed to complete the job of determining the ventilation needs of California residences, determining the bases for setting residential ventilation requirements, and determining appropriate ventilation technologies to meet these needs and requirements in an energy efficient manner. Rather than providing research results, this scoping study identifies important research questions along with the level of effort necessary to address these questions and the costs, risks, and benefits of pursuing alternative research questions. In approaching these questions and corresponding levels of effort, feasibility and timing were important considerations. The Commission has specified Summer 2005 as the latest date for completing this research in time to update the 2008 version of California's Energy Code (Title 24).

McKone, Thomas E.; Sherman, Max H.

2003-10-01T23:59:59.000Z

79

Ventilation Based on ASHRAE 62.2  

E-Print Network [OSTI]

July 2010 CEC-400-2010-006 Minimum Best Practices Guide #12;CALIFORNIA ENERGY COMMISSION Craig in this report. #12;1 2008 Building Energy Efficiency Standards Residential Indoor Air Quality and Mechanical Ventilation (ASHRAE 62.2) Minimum Best Practices Guide - Exhaust-Only Ventilation Introduction: The California

80

Forecast Technical Document Volume Increment  

E-Print Network [OSTI]

Forecast Technical Document Volume Increment Forecasts A document describing how volume increment is handled in the 2011 Production Forecast. Tom Jenkins Robert Matthews Ewan Mackie Lesley Halsall #12;PF2011 ­ Volume increment forecasts Background A volume increment forecast is a fundamental output of the forecast

Note: This page contains sample records for the topic "incremental ventilation energy" 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

ASHRAE and residential ventilation  

SciTech Connect (OSTI)

In the last quarter of a century, the western world has become increasingly aware of environmental threats to health and safety. During this period, people psychologically retreated away from outdoors hazards such as pesticides, smog, lead, oil spills, and dioxin to the seeming security of their homes. However, the indoor environment may not be healthier than the outdoor environment, as has become more apparent over the past few years with issues such as mold, formaldehyde, and sick-building syndrome. While the built human environment has changed substantially over the past 10,000 years, human biology has not; poor indoor air quality creates health risks and can be uncomfortable. The human race has found, over time, that it is essential to manage the indoor environments of their homes. ASHRAE has long been in the business of ventilation, but most of the focus of that effort has been in the area of commercial and institutional buildings. Residential ventilation was traditionally not a major concern because it was felt that, between operable windows and envelope leakage, people were getting enough outside air in their homes. In the quarter of a century since the first oil shock, houses have gotten much more energy efficient. At the same time, the kinds of materials and functions in houses changed in character in response to people's needs. People became more environmentally conscious and aware not only about the resources they were consuming but about the environment in which they lived. All of these factors contributed to an increasing level of public concern about residential indoor air quality and ventilation. Where once there was an easy feeling about the residential indoor environment, there is now a desire to define levels of acceptability and performance. Many institutions--both public and private--have interests in Indoor Air Quality (IAQ), but ASHRAE, as the professional society that has had ventilation as part of its mission for over 100 years, is the logical place to provide leadership. This leadership has been demonstrated most recently by the publication of the first nationally recognized standard on ventilation in homes, ASHRAE Standard 62.2-2003, which builds on work that has been part of ASHRAE for many years and will presumably continue. Homeowners and occupants, which includes virtually all of us, will benefit from the application of Standard 62.2 and use of the top ten list. This activity is exactly the kind of benefit to society that the founders of ASHRAE envisioned and is consistent with ASHRAE's mission and vision. ASHRAE members should be proud of their Society for taking leadership in residential ventilation.

Sherman, Max H.

2003-10-01T23:59:59.000Z

82

INDOOR AIR QUALITY AND ENERGY EFFICIENT VENTILATION RATES AT A NEW YORK CITY ELEMENTARY SCHOOL  

E-Print Network [OSTI]

standard, ASHRAE 90-75R, Energy Conservation in New Building Design, 3 has stipulated that the minimum

Young, Rodger A.

2013-01-01T23:59:59.000Z

83

A scale model study of displacement ventilation with chilled ceilings  

E-Print Network [OSTI]

Displacement ventilation is a form of air-conditioning which provides good air quality and some energy savings. The air quality is better than for a conventional mixed ventilation system. The maximum amount of cooling that ...

Holden, Katherine J. A. (Katherine Joan Adrienne)

1995-01-01T23:59:59.000Z

84

Design of a Natural Ventilation System in the Dunhuang Museum  

E-Print Network [OSTI]

Fresh air and good air quality can be obtained by a natural ventilation system, to fulfill the requirement of near natural conditions for the psychological health of mankind. A natural ventilation system is an ecological, energy saving system...

Zhang, Y.; Guan, W.

2006-01-01T23:59:59.000Z

85

Modeling buoyancy-driven airflow in ventilation shafts  

E-Print Network [OSTI]

Naturally ventilated buildings can significantly reduce the required energy for cooling and ventilating buildings by drawing in outdoor air using non-mechanical forces. Buoyancy-driven systems are common in naturally ...

Ray, Stephen D. (Stephen Douglas)

2012-01-01T23:59:59.000Z

86

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

E-Print Network [OSTI]

heating, given the higher cost per KWh for electricity, aaverage cost of electrical energy per kilowatt-hour (kWh) is

Logue, J.M.

2012-01-01T23:59:59.000Z

87

INDOOR AIR QUALITY AND ENERGY EFFICIENT VENTILATION RATES AT A NEW YORK CITY ELEMENTARY SCHOOL  

E-Print Network [OSTI]

jn Ne~ Building Desig~, ASHRAE 90-75R (New York, 1975). 4.in 1975. This standard, ASHRAE 90-75R, Energy Conservation

Young, Rodger A.

2013-01-01T23:59:59.000Z

88

VFD Technology's Energy Conservation Application at Metro Ventilation Air-conditioning System  

E-Print Network [OSTI]

Shenzhen metro has been applied the VFD control technique and close loop negative control logic to adjust and control the temperature and humidity of public area and conserve the energy on HVAC system of children palace station and Fumin station...

Li, G.

2006-01-01T23:59:59.000Z

89

Study on Energy Saving of the Interlayer Ventilation Walla Used in Clean Operation Rooms  

E-Print Network [OSTI]

and Air Conditioning, 2003(3):61-62 (in Chinese) [3] H.L.Wang, K.Li, Y.L.Dai, Progress status and existing problems of energy-saving sunlight greenhouse, Journal of Northwest Sci-tech University of Agriculture and Forestry, 2000,28(4), 108-112 (in...

Feng, J.; Lian, Z.; Hou, Z.

2006-01-01T23:59:59.000Z

90

Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment  

Buildings Energy Data Book [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural12 Building478

91

Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment  

Buildings Energy Data Book [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural12 Building4784

92

Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment  

Buildings Energy Data Book [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural12 Building47845

93

Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment  

Buildings Energy Data Book [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural12 Building478456

94

Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment  

Buildings Energy Data Book [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural12 Building4784562

95

Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment  

Buildings Energy Data Book [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural12 Building47845623

96

Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment  

Buildings Energy Data Book [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural12 Building478456234

97

Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment  

Buildings Energy Data Book [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural12 Building4784562345

98

Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment  

Buildings Energy Data Book [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural12 Building47845623456

99

Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment  

Buildings Energy Data Book [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural12 Building478456234567

100

Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment  

Buildings Energy Data Book [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural12 Building4784562345678

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment  

Buildings Energy Data Book [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural12 Building47845623456789

102

Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment  

Buildings Energy Data Book [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural12 Building478 Typical

103

Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment  

Buildings Energy Data Book [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural12 Building478 Typical0

104

Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment  

Buildings Energy Data Book [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural12 Building478 Typical01

105

Buildings Energy Data Book: 5.3 Heating, Cooling, and Ventilation Equipment  

Buildings Energy Data Book [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural12 Building478 Typical012

106

Advanced Manufacturing Office: Case Study - The Challenge: Improving Ventilation System Energy Efficiency in a Textile Plant  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartment of EnergyAdministrative2 DOE2011 DOE Hydrogen and11

107

Flexible Residential Test Facility: Impact of Infiltration and Ventilation on Measured Cooling Season Energy and Moisture Levels  

SciTech Connect (OSTI)

Air infiltration and ventilation in residential buildings is a very large part of the heating loads, but empirical data regarding the impact on space cooling has been lacking. Moreover, there has been little data on how building tightness might relate to building interior moisture levels in homes in a hot and humid climate. To address this need, BA-PIRC has conducted research to assess the moisture and cooling load impacts of airtightness and mechanical ventilation in two identical laboratory homes in the hot-humid climate over the cooling season.

Parker, D.; Kono, J.; Vieira, R.; Fairey, P.; Sherwin, J.; Withers, C.; Hoak, D.; Beal, D.

2014-05-01T23:59:59.000Z

108

Modeling, design and thermal performance of a BIPV/T system thermally coupled with a ventilated concrete slab in a low energy solar house: Part 2, ventilated concrete slab  

SciTech Connect (OSTI)

This paper is the second of two papers that describe the modeling and design of a building-integrated photovoltaic-thermal (BIPV/T) system thermally coupled with a ventilated concrete slab (VCS) adopted in a prefabricated, two-storey detached, low energy solar house and their performance assessment based on monitored data. The VCS concept is based on an integrated thermal-structural design with active storage of solar thermal energy while serving as a structural component - the basement floor slab ({proportional_to}33 m{sup 2}). This paper describes the numerical modeling, design, and thermal performance assessment of the VCS. The thermal performance of the VCS during the commissioning of the unoccupied house is presented. Analysis of the monitored data shows that the VCS can store 9-12 kWh of heat from the total thermal energy collected by the BIPV/T system, on a typical clear sunny day with an outdoor temperature of about 0 C. It can also accumulate thermal energy during a series of clear sunny days without overheating the slab surface or the living space. This research shows that coupling the VCS with the BIPV/T system is a viable method to enhance the utilization of collected solar thermal energy. A method is presented for creating a simplified three-dimensional, control volume finite difference, explicit thermal model of the VCS. The model is created and validated using monitored data. The modeling method is suitable for detailed parametric study of the thermal behavior of the VCS without excessive computational effort. (author)

Chen, Yuxiang; Galal, Khaled; Athienitis, A.K. [Dept. of Building, Civil and Environmental Engineering, Concordia University, 1455 De Maisonneuve West, EV6.139, Montreal, Quebec (Canada)

2010-11-15T23:59:59.000Z

109

May 1999 LBNL -42975 ASHRAE'S RESIDENTIAL VENTILATION  

E-Print Network [OSTI]

May 1999 LBNL - 42975 ASHRAE'S RESIDENTIAL VENTILATION STANDARD: EXEGESIS OF PROPOSED STANDARD 62 standard. 1 Max Sherman is a Senior Scientist at LBNL and the group leader of its Energy Performance

110

Performance Assessment of Photovoltaic Attic Ventilator Fans  

E-Print Network [OSTI]

has long been identified as a method to abate such heat gains. We present test results from using the photovoltaic (PV) attic ventilator fans in a test home to assess impact on attic and cooling energy performance....

Parker, D. S.; Sherwin, J. R.

2000-01-01T23:59:59.000Z

111

Scale model studies of displacement ventilation  

E-Print Network [OSTI]

Displacement ventilation is an air conditioning method that provides conditioned air to indoor environments with the goal to improve air quality while reducing energy consumption. This study investigates the performance ...

Okutan, Galip Mehmet

1995-01-01T23:59:59.000Z

112

Advanced Controls for Residential Whole-House Ventilation Systems  

SciTech Connect (OSTI)

Whole-house ventilation systems are becoming commonplace in new construction, remodeling/renovation, and weatherization projects, driven by combinations of specific requirements for indoor air quality (IAQ), health and compliance with standards, such as ASHRAE 62.2. Ventilation systems incur an energy penalty on the home via fan power used to drive the airflow, and the additional space-conditioning load associated with heating or cooling the ventilation air. Finding a balance between IAQ and energy use is important if homes are to be adequately ventilated while not increasing the energy burden. This study used computer simulations to examine RIVEC the Residential Integrated Ventilation Controller - a prototype ventilation controller that aims to deliver whole-house ventilation rates that comply with ventilation standards, for the minimum use of energy. Four different whole-house ventilation systems were simulated, both with and without RIVEC, so that the energy and IAQ results could be compared. Simulations were conducted for 13 US climate zones, three house designs, and three envelope leakage values. The results showed that the RIVEC controller could typically return ventilation energy savings greater than 40percent without compromising long-term chronic or short-term acute exposures to relevant indoor contaminants. Critical and average peak power loads were also reduced as a consequence of using RIVEC.

Turner, William; Walker, Iain; Sherman, Max

2014-08-01T23:59:59.000Z

113

Building Science- Ventilation  

Broader source: Energy.gov [DOE]

This presentation was given at the Summer 2012 DOE Building America meeting on July 25, 2012, and addressed the question "What are the best ventilation techniques"

114

Meeting Residential Ventilation Standards Through Dynamic Control of Ventilation Systems  

E-Print Network [OSTI]

Rudd. 2007. Review of residential ventilation technologies.2009. EISG Final Report: Residential Integrated VentilationDesign and Operation of Residential Cooling Systems. Proc.

Sherman, Max H.

2011-01-01T23:59:59.000Z

115

Sensor-based demand controlled ventilation  

SciTech Connect (OSTI)

In most buildings, occupancy and indoor pollutant emission rates vary with time. With sensor-based demand-controlled ventilation (SBDCV), the rate of ventilation (i.e., rate of outside air supply) also varies with time to compensate for the changes in pollutant generation. In other words, SBDCV involves the application of sensing, feedback and control to modulate ventilation. Compared to ventilation without feedback, SBDCV offers two potential advantages: (1) better control of indoor pollutant concentrations; and (2) lower energy use and peak energy demand. SBDCV has the potential to improve indoor air quality by increasing the rate of ventilation when indoor pollutant generation rates are high and occupants are present. SBDCV can also save energy by decreasing the rate of ventilation when indoor pollutant generation rates are low or occupants are absent. After providing background information on indoor air quality and ventilation, this report provides a relatively comprehensive discussion of SBDCV. Topics covered in the report include basic principles of SBDCV, sensor technologies, technologies for controlling air flow rates, case studies of SBDCV, application of SBDCV to laboratory buildings, and research needs. SBDCV appears to be an increasingly attractive technology option. Based on the review of literature and theoretical considerations, the application of SBDCV has the potential to be cost-effective in applications with the following characteristics: (a) a single or small number of dominant pollutants, so that ventilation sufficient to control the concentration of the dominant pollutants provides effective control of all other pollutants; (b) large buildings or rooms with unpredictable temporally variable occupancy or pollutant emission; and (c) climates with high heating or cooling loads or locations with expensive energy.

De Almeida, A.T. [Universidade de Coimbra (Portugal). Dep. Eng. Electrotecnica; Fisk, W.J. [Lawrence Berkeley National Lab., CA (United States)

1997-07-01T23:59:59.000Z

116

Carbon-dioxide-controlled ventilation study  

SciTech Connect (OSTI)

The In-House Energy Management (IHEM) Program has been established by the U.S. Department of Energy to provide funds to federal laboratories to conduct research on energy-efficient technology. The Energy Sciences Department of Pacific Northwest Laboratory (PNL) was tasked by IHEM to research the energy savings potential associated with reducing outdoor-air ventilation of buildings. By monitoring carbon dioxide (CO{sub 2}) levels in a building, outdoor air provided by the heating, ventilating, and air-conditioning (HVAC) system can be reduced to the percentage required to maintain satisfactory CO{sub 2} levels rather than ventilating with a higher outdoor-air percentage based on an arbitrary minimum outdoor-air setting. During summer months, warm outdoor air brought into a building for ventilation must be cooled to meet the appropriate cooling supply-air temperature, and during winter months, cold outdoor air must be heated. By minimizing the amount of hot or cold outdoor air brought into the HVAC system, the supply air requires less cooling or heating, saving energy and money. Additionally, the CO{sub 2} levels in a building can be monitored to ensure that adequate outdoor air is supplied to a building to maintain air quality levels. The two main considerations prior to implementing CO{sub 2}-based ventilation control are its impact on energy consumption and the adequacy of indoor air quality (IAQ) and occupant comfort. To address these considerations, six portable CO{sub 2} monitors were placed in several Hanford Site buildings to estimate the adequacy of office/workspace ventilation. The monitors assessed the potential for reducing the flow of outdoor-air to the buildings. A candidate building was also identified to monitor various ventilation control strategies for use in developing a plan for implementing and assessing energy savings.

McMordie, K.L.; Carroll, D.M.

1994-05-01T23:59:59.000Z

117

INDOOR AIR QUALITY MEASUREMENTS IN ENERGY EFFICIENT BUILDINGS  

E-Print Network [OSTI]

incorporating energy efficient designs. Indoor air qualityincorporating energy efficient designs. In the future, theenergy efficient ventilation standards and ventilation designs

Hollowell, C.D.

2011-01-01T23:59:59.000Z

118

HOSPITAL VENTILATION STANDARDS AND ENERGY CONSERVATION: A SUMMARY OF THE LITERATURE WITH CONCLUSIONS AND RECOMMENDATIONS, FY 78 FINAL REPORT  

E-Print Network [OSTI]

humidification versus energy conservation. ASHRAEG. Design criteria for energy conservation. June 1975.Humidity control and energy conservation. Transactions, 81(

DeRoos, R.L.

2011-01-01T23:59:59.000Z

119

Final Report Balancing energy conservation and occupant needs in ventilation rate standards for Big Box stores in California: predicted indoor air quality and energy consumption using a matrix of ventilation scenarios  

E-Print Network [OSTI]

irritant effects. For energy models, we estimated buildingreduced outdoor air VRs. The energy models estimate that, inof commercial building energy models. The study assessed the

Apte, Michael G.

2013-01-01T23:59:59.000Z

120

Final Report Balancing energy conservation and occupant needs in ventilation rate standards for Big Box stores in California: predicted indoor air quality and energy consumption using a matrix of ventilation scenarios  

E-Print Network [OSTI]

MG. (2010). Balancing energy conservation and occupant needsReport   Balancing energy conservation and occupant needs Report Balancing energy conservation and occupant needs in

Apte, Michael G.

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "incremental ventilation energy" 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

CO 2 - Based Demand-Controlled Ventilation Control Strategies for Multi-Zone HVAC Systems  

E-Print Network [OSTI]

CO 2-based demand-controlled ventilation DCV strategy offers a great opportunity to reduce energy consumption in HVAC systems while providing the required ventilation. However, implementing CO 2-based DCV under ASHRAE 62.1.2004 through 2010...

Nassif, N.

2011-01-01T23:59:59.000Z

122

Methodology for the evaluation of natural ventilation in buildings using a reduced-scale air model  

E-Print Network [OSTI]

Commercial office buildings predominantly are designed to be ventilated and cooled using mechanical systems. In temperate climates, passive ventilation and cooling techniques can be utilized to reduce energy consumption ...

Walker, Christine E. (Christine Elaine)

2006-01-01T23:59:59.000Z

123

Evaluating the performance of natural ventilation in buildings through simulation and on-site monitoring  

E-Print Network [OSTI]

Natural ventilation in buildings is capable of reducing energy consumption while maintaining a comfortable indoor at the same time. It is important that natural ventilation is taken into consideration in the early design ...

Cheng, Haofan

2013-01-01T23:59:59.000Z

124

Natural Ventilation in Buildings: Measurement in a Wind Tunnel and Numerical Simulation with Large Eddy Simulation  

E-Print Network [OSTI]

save energy compared to mechanical ventilation systems. In building design the prediction save energy consumed by the heating, ventilating, and air- conditioning systems in a building. In a naturally ventilated building, air is driven in and out due to pressure differences produced by wind

Chen, Qingyan "Yan"

125

Estimated costs of ventilation systems complying with the HUD ventilation standard for manufactured homes  

SciTech Connect (OSTI)

At the request of the US Department of Housing and Urban Development (HUD), the Pacific Northwest Laboratory estimated the material, labor, and operating costs for ventilation equipment needed for compliance with HUD`s proposed revision to the ventilation standard for manufactured housing. This was intended to bound the financial impacts of the ventilation standard revision. Researchers evaluated five possible prototype ventilation systems that met the proposed ventilation requirements. Of those five, two systems were determined to be the most likely used by housing manufacturers: System 1 combines a fresh air duct with the existing central forced-air system to supply and circulate fresh air to conditioned spaces. System 2 uses a separate exhaust fan to remove air from the manufactured home. The estimated material and labor costs for these two systems range from $200 to $300 per home. Annual operating costs for the two ventilation systems were estimated for 20 US cities. The estimated operating costs for System 1 ranged from $55/year in Las Vegas, Nevada, to $83/year in Bismarck, North Dakota. Operating costs for System 2 ranged from a low of $35/year in Las Vegas to $63/year in Bismarck. Thus, HUD`s proposed increase in ventilation requirements will add less than $100/year to the energy cost of a manufactured home.

Miller, J.D.; Conner, C.C.

1993-11-01T23:59:59.000Z

126

Study of airflow and thermal stratification in naturally ventilated rooms  

E-Print Network [OSTI]

Natural ventilation (NV) can considerably contribute to reducing the cooling energy consumption of a building and increase occupant productivity, if correctly implemented. Such energy savings depend on the number of hours ...

Menchaca Brandan, María Alejandra

2012-01-01T23:59:59.000Z

127

Building America Case Study: Evaluation of Ventilation Strategies in New Construction Multifamily Buildings, New York, New York (Fact Sheet), Technology Solutions for New and Existing Homes, Energy Efficiency & Renewable Energy (EERE)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTie Ltd: ScopeDepartment1,Energy ForBryanREvaluation of Ventilation

128

Natural ventilation generates building form  

E-Print Network [OSTI]

Natural ventilation is an efficient design strategy for thermal comfort in hot and humid climates. The building forms can generate different pressures and temperatures to induce natural ventilation. This thesis develops a ...

Chen, Shaw-Bing

1996-01-01T23:59:59.000Z

129

Humidity Implications for Meeting Residential Ventilation Requirements  

E-Print Network [OSTI]

, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by its trade name, trademark for ventilation system design. These standards are increasingly used by reference in building energy and IAQ codes

130

Incremental Hierarchical Clustering of Text Documents  

E-Print Network [OSTI]

distribution is demonstrated. 1 Introduction Document clustering is an effective tool to manage informationIncremental Hierarchical Clustering of Text Documents by Nachiketa Sahoo Adviser: Jamie Callan May 5, 2006 Abstract Incremental hierarchical text document clustering algorithms are important

Gordon, Geoffrey J.

131

THE EFFECTS OF ENERGY-EFFICIENT VENTILATION RATES ON INDOOR AIR QUALITY AT AN OHIO ELEMENTARY SCHOOL  

E-Print Network [OSTI]

New Buil~ Desi£!! 1 ASHRAE 90-75R 5. J.V. Berk 1 C.D.recently 1 a new standard, ASHRAE 90~75R 3 Energy in New

Berk, J.V.

2013-01-01T23:59:59.000Z

132

Ventilation Systems Operating Experience Review for Fusion Applications  

SciTech Connect (OSTI)

This report is a collection and review of system operation and failure experiences for air ventilation systems in nuclear facilities. These experiences are applicable for magnetic and inertial fusion facilities since air ventilation systems are support systems that can be considered generic to nuclear facilities. The report contains descriptions of ventilation system components, operating experiences with these systems, component failure rates, and component repair times. Since ventilation systems have a role in mitigating accident releases in nuclear facilities, these data are useful in safety analysis and risk assessment of public safety. An effort has also been given to identifying any safety issues with personnel operating or maintaining ventilation systems. Finally, the recommended failure data were compared to an independent data set to determine the accuracy of individual values. This comparison is useful for the International Energy Agency task on fusion component failure rate data collection.

Cadwallader, Lee Charles

1999-12-01T23:59:59.000Z

133

Development and application of a procedure to estimate overall building and ventilation parameters from monitored commercial building energy use  

E-Print Network [OSTI]

systems were analyzed for the BUS building. . . . . . . . . . 69 5. 7 Monthly average of energy use for the BUS building pre and post retrofit. . . . 69 5. 8 Monthly EDE for for the BUS building pre and post retrofit. . . . 71 5. 9 Monthly MEIc and MEIh... of energy use for the CSB pre and post continuous commissioning. . 74 5. 12 Monthly EDE for for the CSB building pre and post continuous commissioning. . 77 5. 13 Monthly MEIc and MEIh for the CSB pre and post continuous commissioning. . 77 LIST...

Deng, Song Jiu

1997-01-01T23:59:59.000Z

134

Natural ventilation in buildings : modeling, control and optimization  

E-Print Network [OSTI]

Natural ventilation in buildings has the potential to reduce the energy consumption usually associated with mechanical cooling while maintaining thermal comfort and air quality. It is important to know how building parameters, ...

Ip Kiun Chong, Karine

2014-01-01T23:59:59.000Z

135

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

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

to harness the natural day-night temperature swings in the U.S. Southwest to cut cooling energy peak demand with no compromise in comfort. This automated night-cooling ventilation...

136

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

137

Impact of Infiltration and Ventilation on Measured Space Conditioning Energy and Moisture Levels in the Hot-Humid Climate, Cocoa, Florida (Fact Sheet)  

SciTech Connect (OSTI)

Air infiltration and ventilation in residential buildings is a very large part of the heating loads, but empirical data regarding the impact on space cooling has been lacking. Moreover, there has been little data on how building tightness might relate to building interior moisture levels in homes in a hot and humid climate. To address this need, BA-PIRC has conducted research to assess the moisture and cooling load impacts of airtightness and mechanical ventilation in two identical laboratory homes in the hot-humid climate over the cooling season. ?

Not Available

2014-04-01T23:59:59.000Z

138

A Field Study Comparison of the Energy and Moisture Performance Characteristics of Ventilated Versus Sealed Crawl Spaces in the South  

SciTech Connect (OSTI)

This study compared the performance of closed crawl spaces, which had sealed foundation wall vents, a sealed polyethylene film liner and various insulation and drying strategies, to traditional wall-vented crawl spaces with perimeter wall vents and polyethylene film covering 100% of the ground surface. The study was conducted at 12 owner-occupied, all electric, single-family detached houses with the same floor plan located on one cul-de-sac in the southeastern United States. Using the matched pairs approach, the houses were divided into three study groups of four houses each. Comparative data was recorded for each house to evaluate sub-metered heat pump energy consumption, relative humidity, wood moisture content, duct infiltration, house infiltration, temperature, radon, and bioaerosol levels. Findings indicated that in the humid conditions of the southeastern United States, a properly closed crawl space is a robust construction measure that produces a substantially drier crawl space and significantly reduces occupied space conditioning energy use on an annual basis.

Bruce Davis; Cyrus Dastur; William E. Warren; Shawn Fitzpatrick; Christine Maurer; Rob Stevens; Terry Brennan; William Rose

2005-06-22T23:59:59.000Z

139

Flexible Residential Test Facility: Impact of Infiltration and Ventilation on Measured Heating Season Energy and Moisture Levels  

SciTech Connect (OSTI)

Two identical laboratory homes designed to model existing Florida building stock were sealed and tested to 2.5 ACH50. Then, one was made leaky with 70% leakage through the attic and 30% through windows, to a tested value of 9 ACH50. Reduced energy use was measured in the tighter home (2.5 ACH50) in the range of 15% to 16.5% relative to the leaky (9 ACH50) home. Internal moisture loads resulted in higher dew points inside the tight home than the leaky home. Window condensation and mold growth occurred inside the tight home. Even cutting internal moisture gains in half to 6.05 lbs/day, the dew point of the tight home was more than 15 degrees F higher than the outside dry bulb temperature. The homes have single pane glass representative of older Central Florida homes.

Vieira, R.; Parker, D.; Fairey, P.; Sherwin, J.; Withers, C.; Hoak, D.

2013-09-01T23:59:59.000Z

140

Building America Webinar: Multifamily Ventilation Strategies and Compartmentalization Requirements- Joe Lstiburek  

Broader source: Energy.gov [DOE]

This presentation will be delivered at the U.S. Department of Energy Building America webinar, Multifamily Ventilation Strategies and Compartmentalization Requirements, on September 24, 2014. Joe...

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Ventilation Air Preconditioning Systems  

E-Print Network [OSTI]

capacity. Optional Morning Warm-up If connected to a liquid condenser bundle, the icemaking chiller can serve as a heat recovery heat pump. The chiller can freeze ice in the early morning to provide heat for morning warm-up, and use the ice... the cooling coil or drain pan re-evaporates and is delivered to occupied space during compressor off-cycles. Although heat recovery between the exhaust air and ventilation air can reduce the impact on the HVAC system, many buildings do not have central...

Khattar, M.; Brandemuehl, M. J.

1996-01-01T23:59:59.000Z

142

Solar Ventilation Preheating Resources and Technologies | Department...  

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

Ventilation Preheating Resources and Technologies Solar Ventilation Preheating Resources and Technologies Photo of a dark brown perforated metal wall is pictured on the side of an...

143

Reverse ventilation--perfusion mismatch  

SciTech Connect (OSTI)

Patients having lobar airway obstruction or consolidation usually have decreases of both ventilation and perfusion on lung scans. We report three patients in whom hypoxic vasoconstriction was apparently incomplete, resulting in a ''reversed'' ventilation-perfusion mismatch. Perfusion of the hypoxic lobe on the radionuclide scan was associated with metabolic alkalosis, pulmonary venous and pulmonary arterial hypertension in these patients.

Palmaz, J.C.; Barnett, C.A.; Reich, S.B.; Krumpe, P.E.; Farrer, P.A.

1984-01-01T23:59:59.000Z

144

Modeling, design and thermal performance of a BIPV/T system thermally coupled with a ventilated concrete slab in a low energy solar house: Part 1, BIPV/T system and house energy concept  

SciTech Connect (OSTI)

This paper is the first of two papers that describe the modeling, design, and performance assessment based on monitored data of a building-integrated photovoltaic-thermal (BIPV/T) system thermally coupled with a ventilated concrete slab (VCS) in a prefabricated, two-storey detached, low energy solar house. This house, with a design goal of near net-zero annual energy consumption, was constructed in 2007 in Eastman, Quebec, Canada - a cold climate area. Several novel solar technologies are integrated into the house and with passive solar design to reach this goal. An air-based open-loop BIPV/T system produces electricity and collects heat simultaneously. Building-integrated thermal mass is utilized both in passive and active forms. Distributed thermal mass in the direct gain area and relatively large south facing triple-glazed windows (about 9% of floor area) are employed to collect and store passive solar gains. An active thermal energy storage system (TES) stores part of the collected thermal energy from the BIPV/T system, thus reducing the energy consumption of the house ground source heat pump heating system. This paper focuses on the BIPV/T system and the integrated energy concept of the house. Monitored data indicate that the BIPV/T system has a typical efficiency of about 20% for thermal energy collection, and the annual space heating energy consumption of the house is about 5% of the national average. A thermal model of the BIPV/T system suitable for preliminary design and control of the airflow is developed and verified with monitored data. (author)

Chen, Yuxiang; Athienitis, A.K.; Galal, Khaled [Dept. of Building, Civil and Environmental Engineering, Concordia University, 1455 De Maisonneuve West, EV6.139, Montreal, Quebec (Canada)

2010-11-15T23:59:59.000Z

145

Innovative Energy Efficient Industrial Ventilation  

E-Print Network [OSTI]

?, a law of physics, shows why electricity savings can be high (Figure 5). 0 10 20 30 40 50 60 70 80 90 100 0 102030405060708090100 Air volume [CFM %] Power [H.P. %] P o w e r [ H .P . % ] A i r v o l u m e [ C FM %] C F M = 50 % of b l ast... and dust could settle. An on-demand dust collecting system solves this problem by using a PLC (industrial computer) which calculates necessary air volume based on information from the sensors. The PLC is adjusting the RPM of the fan accordingly...

Litomisky, A.

2005-01-01T23:59:59.000Z

146

Cardiac gated ventilation  

SciTech Connect (OSTI)

There are several theoretic advantages to synchronizing positive pressure breaths with the cardiac cycle, including the potential for improving distribution of pulmonary and myocardial blood flow and enhancing cardiac output. The authors evaluated the effects of synchronizing respiration to the cardiac cycle using a programmable ventilator and electron beam CT (EBCT) scanning. The hearts of anesthetized dogs were imaged during cardiac gated respiration with a 50 msec scan aperture. Multi slice, short axis, dynamic image data sets spanning the apex to base of the left ventricle were evaluated to determine the volume of the left ventricular chamber at end-diastole and end-systole during apnea, systolic and diastolic cardiac gating. The authors observed an increase in cardiac output of up to 30% with inspiration gated to the systolic phase of the cardiac cycle in a non-failing model of the heart.

Hanson, C.W. III [Hospital of the Univ. of Pennsylvania, Philadelphia, PA (United States). Dept. Anesthesia; Hoffman, E.A. [Univ. of Iowa College of Medicine, Iowa City, IA (United States). Div. of Physiologic Imaging

1995-12-31T23:59:59.000Z

147

Capture and Use of Coal Mine Ventilation Air Methane  

SciTech Connect (OSTI)

CONSOL Energy Inc., in conjunction with MEGTEC Systems, Inc., and the U.S. Department of Energy with the U.S. Environmental Protection Agency, designed, built, and operated a commercial-size thermal flow reversal reactor (TFRR) to evaluate its suitability to oxidize coal mine ventilation air methane (VAM). Coal mining, and particularly coal mine ventilation air, is a major source of anthropogenic methane emissions, a greenhouse gas. Ventilation air volumes are large and the concentration of methane in the ventilation air is low; thus making it difficult to use or abate these emissions. This test program was conducted with simulated coal mine VAM in advance of deploying the technology on active coal mine ventilation fans. The demonstration project team installed and operated a 30,000 cfm MEGTEC VOCSIDIZER oxidation system on an inactive coal mine in West Liberty, WV. The performance of the unit was monitored and evaluated during months of unmanned operation at mostly constant conditions. The operating and maintenance history and how it impacts the implementation of the technology on mine fans were investigated. Emission tests showed very low levels of all criteria pollutants at the stack. Parametric studies showed that the equipment can successfully operate at the design specification limits. The results verified the ability of the TFRR to oxidize {ge}95% of the low and variable concentration of methane in the ventilation air. This technology provides new opportunities to reduce greenhouse gas emissions by the reduction of methane emissions from coal mine ventilation air. A large commercial-size installation (180,000 cfm) on a single typical mine ventilation bleeder fan would reduce methane emissions by 11,000 to 22,100 short tons per year (the equivalent of 183,000 to 366,000 metric tonnes carbon dioxide).

Deborah Kosmack

2008-10-31T23:59:59.000Z

148

SURVEY OF THE EXISTING APPROACHES TO ASSESS AND DESIGN NATURAL VENTILATION AND NEED FOR FURTHER DEVELOPMENTS  

E-Print Network [OSTI]

SURVEY OF THE EXISTING APPROACHES TO ASSESS AND DESIGN NATURAL VENTILATION AND NEED FOR FURTHER DEVELOPMENTS Marcello Caciolo, Dominique Marchio, Pascal Stabat Ecole des Mines de Paris- Center for Energy their attention to natural ventilation, due to the potential benefits in terms of energy consumption related

Boyer, Edmond

149

Ventilation Model and Analysis Report  

SciTech Connect (OSTI)

This model and analysis report develops, validates, and implements a conceptual model for heat transfer in and around a ventilated emplacement drift. This conceptual model includes thermal radiation between the waste package and the drift wall, convection from the waste package and drift wall surfaces into the flowing air, and conduction in the surrounding host rock. These heat transfer processes are coupled and vary both temporally and spatially, so numerical and analytical methods are used to implement the mathematical equations which describe the conceptual model. These numerical and analytical methods predict the transient response of the system, at the drift scale, in terms of spatially varying temperatures and ventilation efficiencies. The ventilation efficiency describes the effectiveness of the ventilation process in removing radionuclide decay heat from the drift environment. An alternative conceptual model is also developed which evaluates the influence of water and water vapor mass transport on the ventilation efficiency. These effects are described using analytical methods which bound the contribution of latent heat to the system, quantify the effects of varying degrees of host rock saturation (and hence host rock thermal conductivity) on the ventilation efficiency, and evaluate the effects of vapor and enhanced vapor diffusion on the host rock thermal conductivity.

V. Chipman

2003-07-18T23:59:59.000Z

150

LBNL REPORT NUMBER 53776; OCTOBER 2003 ASHRAE &Residential Ventilation  

E-Print Network [OSTI]

LBNL REPORT NUMBER 53776; OCTOBER 2003 ASHRAE &Residential Ventilation Max Sherman Energy and Community Programs under U.S. Department of Energy Contract No. DE-AC03- 76SF00098. #12;LBNL 53776 Table......................................................................................................12 2 #12;LBNL 53776 Introduction As HVAC&R professionals, our major concern is the engineering

151

Tax Increment Financing (TIF) Guarantee Program (Pennsylvania)  

Broader source: Energy.gov [DOE]

The Tax Increment Financing (TIF) Guarantee Program provides credit enhancement to improve market access and lower capital costs through loan guarantees to bond issuers to assist in the development...

152

Contaminants in Naturally Ventilated  

E-Print Network [OSTI]

? 1973 OPEC Oil Crisis 1970s/80s - Sick Building Syndrome Bad planning = Many good ideas died 2007 - Can main motivation)- particularly for low energy ones! #12;Low Energy Buildings - Who Cares? + + = Buildings account for 48% of all energy used #12;Who cares some more? + = Buildings account for more than 50

Politècnica de Catalunya, Universitat

153

STATE OF CALIFORNIA INDOOR AIR QUALITY AND MECHANICAL VENTILATION  

E-Print Network [OSTI]

for selection of the whole-building ventilation fan and for the duct design for the whole-building ventilation

154

Advanced Controls and Sustainable Systems for Residential Ventilation  

E-Print Network [OSTI]

..........................................................................................9 Passive and Hybrid Ventilation ....................................................................................................................................19 4. WHOLE-HOUSE VENTILATION STRATEGIES..........................................................................................................21 Strategy 1: Whole-House Exhaust

155

Building America Webinar: Ventilation in Multifamily Buildings...  

Energy Savers [EERE]

Residential Buildings (CARB), and discussed ventilation strategies for multifamily buildings, including how to successfully implement those strategies through smart design,...

156

Ventilation Behavior and Household Characteristics in NewCalifornia Houses  

SciTech Connect (OSTI)

A survey was conducted to determine occupant use of windows and mechanical ventilation devices; barriers that inhibit their use; satisfaction with indoor air quality (IAQ); and the relationship between these factors. A questionnaire was mailed to a stratified random sample of 4,972 single-family detached homes built in 2003, and 1,448 responses were received. A convenience sample of 230 houses known to have mechanical ventilation systems resulted in another 67 completed interviews. Some results are: (1) Many houses are under-ventilated: depending on season, only 10-50% of houses meet the standard recommendation of 0.35 air changes per hour. (2) Local exhaust fans are under-utilized. For instance, about 30% of households rarely or never use their bathroom fan. (3) More than 95% of households report that indoor air quality is ''very'' or ''somewhat'' acceptable, although about 1/3 of households also report dustiness, dry air, or stagnant or humid air. (4) Except households where people cook several hours per week, there is no evidence that households with significant indoor pollutant sources get more ventilation. (5) Except households containing asthmatics, there is no evidence that health issues motivate ventilation behavior. (6) Security and energy saving are the two main reasons people close windows or keep them closed.

Price, Phillip N.; Sherman, Max H.

2006-02-01T23:59:59.000Z

157

Utilizing Passive Ventilation to Complement HVAC Systems in Enclosed Buildings  

E-Print Network [OSTI]

Utilizing Passive Ventilation to Complement HVAC Systems in Enclosed Buildings Tom Rogg REU Student to assist HVAC has the potential to significantly reduce life cycle cost and energy consumption and electrical system that will tie thermostats to controlled valves in the actual HVAC system. Based on results

Mountziaris, T. J.

158

AIR FLOW MODELING IN DEEP WELLS: APPLICATION TO MINING VENTILATION  

E-Print Network [OSTI]

consumption and increase of electricity prices in a context of worldwide competition also mo- tivate system control and energy consumption op- timization. Two different levels of complexity are pro- posed]. This short historical overview also illustrates the parallel evolution of magnetic ventilation modeling

Paris-Sud XI, Université de

159

Smart Ventilation - RIVEC  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage » SearchEnergyDepartmentScoping Study | Department of

160

For natural ventilation to work, solar gains through the facade needed to be reduced by approximately 80% from  

E-Print Network [OSTI]

Engineers, Inc. Laboratory Consultant: Research Facilities Design Energy Modeling: SOLARC ArchitectureFor natural ventilation to work, solar gains through the facade needed to be reduced--largely due to the enormous ventilation demands and the energy associated with moving and conditioning

Hochberg, Michael

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Incremental Learning for Visual Tracking Jongwoo Lim  

E-Print Network [OSTI]

existing incremental subspace update methods ignore the fact the sam- ple mean varies over time] in several aspects. First, the pro- posed algorithm does not require any training images of the target object, that the target region has been initialized in the first frame). Second, we extend our sam- pling method

Yang, Ming-Hsuan

162

Experimental Study of the Floor Radiant Cooling System Combined with Displacement Ventilation  

E-Print Network [OSTI]

ICEBO2006, Shenzhen, China HVAC Technologies for Energy Efficiency, Vol. IV-11-4 Experimental Study of the Floor Radiant Cooling System Combined with Displacement Ventilation Yanli Ren1, Deying Li2, Yufeng Zhang1 1...

Ren, Y.; Li, D.; Zhang, Y.

2006-01-01T23:59:59.000Z

163

Study of natural ventilation design by integrating the multi-zone model with CFD simulation  

E-Print Network [OSTI]

Natural ventilation is widely applied in sustainable building design because of its energy saving, indoor air qualify and indoor thermal environment improvement. It is important for architects and engineers to accurately ...

Tan, Gang, 1974-

2005-01-01T23:59:59.000Z

164

A New Empirical Model for Predicting Single-Sided, Wind-Driven Natural Ventilation in Buildings  

E-Print Network [OSTI]

in the United States, with a significant part of this energy being used to cool buildings [1]. As green buildings are becoming a trend in building design, natural ventilation has been drawing much attention

Chen, Qingyan "Yan"

165

Underground and Ventilation System  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof2014National Nuclear

166

Underground and Ventilation System  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof2014National Nuclear23, 2014 Meeting

167

Underground and Ventilation System  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof2014National Nuclear23, 2014 Meeting Agenda * Opening

168

Underground and Ventilation System  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof2014National Nuclear23, 2014 Meeting Agenda *

169

Underground and Ventilation System  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof2014National Nuclear23, 2014 Meeting Agenda *October 2,

170

Underground and Ventilation System  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof2014National Nuclear23, 2014 Meeting Agenda *October

171

Underground and Ventilation System  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof2014National Nuclear23, 2014 Meeting Agenda

172

Underground and Ventilation System  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof2014National Nuclear23, 2014 Meeting AgendaJanuary 8, 2015

173

Underground and Ventilation System  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof2014National Nuclear23, 2014 Meeting AgendaJanuary 8,

174

Underground and Ventilation System  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof2014National Nuclear23, 2014 Meeting AgendaJanuary 8,1,

175

Underground and Ventilation System  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof2014National Nuclear23, 2014 Meeting AgendaJanuary

176

A study of time-dependent responses of a mechanical displacement ventilation (DV) system and an underfloor air distribution (UFAD) system : building energy performance of the UFAD system  

E-Print Network [OSTI]

to HVAC operating cost based on recent energy markets forenergy market, UFAD still has the advantage on overall HVAC

Yu, Jong Keun

2010-01-01T23:59:59.000Z

177

A Semi-Empirical Model for Studying the Impact of Thermal Mass and Cost-Return Analysis on Mixed-mode Ventilation in Office Buildings  

E-Print Network [OSTI]

Vertical location EME Energy consumption by mechanical ventilation z0 Vertical location of the neutral and cost-return analysis on mixed-mode ventilation in office buildings," Energy and Buildings, 67, 267 consume about 40% of total primary energy [1], and the energy consumption of office buildings comprises

Chen, Qingyan "Yan"

178

Particle deposition in ventilation ducts  

SciTech Connect (OSTI)

Exposure to airborne particles is detrimental to human health and indoor exposures dominate total exposures for most people. The accidental or intentional release of aerosolized chemical and biological agents within or near a building can lead to exposures of building occupants to hazardous agents and costly building remediation. Particle deposition in heating, ventilation and air-conditioning (HVAC) systems may significantly influence exposures to particles indoors, diminish HVAC performance and lead to secondary pollutant release within buildings. This dissertation advances the understanding of particle behavior in HVAC systems and the fates of indoor particles by means of experiments and modeling. Laboratory experiments were conducted to quantify particle deposition rates in horizontal ventilation ducts using real HVAC materials. Particle deposition experiments were conducted in steel and internally insulated ducts at air speeds typically found in ventilation ducts, 2-9 m/s. Behaviors of monodisperse particles with diameters in the size range 1-16 {micro}m were investigated. Deposition rates were measured in straight ducts with a fully developed turbulent flow profile, straight ducts with a developing turbulent flow profile, in duct bends and at S-connector pieces located at duct junctions. In straight ducts with fully developed turbulence, experiments showed deposition rates to be highest at duct floors, intermediate at duct walls, and lowest at duct ceilings. Deposition rates to a given surface increased with an increase in particle size or air speed. Deposition was much higher in internally insulated ducts than in uninsulated steel ducts. In most cases, deposition in straight ducts with developing turbulence, in duct bends and at S-connectors at duct junctions was higher than in straight ducts with fully developed turbulence. Measured deposition rates were generally higher than predicted by published models. A model incorporating empirical equations based on the experimental measurements was applied to evaluate particle losses in supply and return duct runs. Model results suggest that duct losses are negligible for particle sizes less than 1 {micro}m and complete for particle sizes greater than 50 {micro}m. Deposition to insulated ducts, horizontal duct floors and bends are predicted to control losses in duct systems. When combined with models for HVAC filtration and deposition to indoor surfaces to predict the ultimate fates of particles within buildings, these results suggest that ventilation ducts play only a small role in determining indoor particle concentrations, especially when HVAC filtration is present. However, the measured and modeled particle deposition rates are expected to be important for ventilation system contamination.

Sippola, Mark R.

2002-09-01T23:59:59.000Z

179

Are Ventilation Filters Degrading Indoor Air Quality in California Classrooms?  

SciTech Connect (OSTI)

Heating, ventilating, and cooling classrooms in California consume substantial electrical energy. Indoor air quality (IAQ) in classrooms affects studenthealth and performance. In addition to airborne pollutants that are emitted directly by indoor sources and those generated outdoors, secondary pollutants can be formed indoors by chemical reaction of ozone with other chemicals and materials. Filters are used in nearly all classroom heating, ventilation and air?conditioning (HVAC) systems to maintain energy-efficient HVAC performance and improve indoor air quality; however, recent evidence indicates that ozone reactions with filters may, in fact, be a source of secondary pollutants. This project quantitatively evaluated ozone deposition in HVAC filters and byproduct formation, and provided a preliminary assessment of the extent towhich filter systems are degrading indoor air quality. The preliminary information obtained will contribute to the design of subsequent research efforts and the identification of energy efficient solutions that improve indoor air quality in classrooms and the health and performance of students.

Fisk, William J.; Destaillats, H.; Apte, M.G.; Destaillats,, Hugo; Fisk, Michael G. Apte and William J.

2008-10-01T23:59:59.000Z

180

Original article Root biomass and biomass increment in a beech  

E-Print Network [OSTI]

Original article Root biomass and biomass increment in a beech (Fagus sylvatica L.) stand in North ­ This study is part of a larger project aimed at quantifying the biomass and biomass increment been developed to estimate the biomass and biomass increment of coarse, small and fine roots of trees

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Multifamily Individual Heating and Ventilation Systems, Lawrence, Massachusetts (Fact Sheet)  

SciTech Connect (OSTI)

The conversion of an older Massachusetts building into condominiums illustrates a safe, durable, and cost-effective solution for heating and ventilation systems that can potentially benefit millions of multifamily buildings. Merrimack Valley Habitat for Humanity (MVHfH) partnered with U.S. Department of Energy Building America team Building Science Corporation (BSC) to provide high performance affordable housing for 10 families in the retrofit of an existing mass masonry building (a former convent). The original ventilation design for the project was provided by a local engineer and consisted of a single large heat recovery ventilator (HRV) located in a mechanical room in the basement with a centralized duct system providing supply air to the main living space and exhausting stale air from the single bathroom in each apartment. This design was deemed to be far too costly to install and operate for several reasons: the large central HRV was oversized and the specified flows to each apartment were much higher than the ASHRAE 62.2 rate; an extensive system of ductwork, smoke and fire dampers, and duct chases were specified; ductwork required a significant area of dropped ceilings; and the system lacked individual ventilation control in the apartments

Not Available

2013-11-01T23:59:59.000Z

182

Solar Ventilation Preheating Resources and Technologies  

Broader source: Energy.gov [DOE]

This page provides a brief overview of solar ventilation preheating (SVP) technologies supplemented by specific information to apply SVP within the Federal sector.

183

Air Flow Distribution in a Mechanically-Ventilated High-Rise Residential Building* Richard C. Diamond and Helmut E. Feustel  

E-Print Network [OSTI]

energy efficiency in public housing as part of a utility's Demand Side Management (DSM) Program of the supply ventilation register for each corridor. The building is exposed on all sides to the windAir Flow Distribution in a Mechanically-Ventilated High-Rise Residential Building* Richard C

Diamond, Richard

184

SM Energy-Efficient  

E-Print Network [OSTI]

SM 111 Energy Energy-Efficient Ventilation for Apartment Buildings #12. These Guides provide clear and practical information on issues related to energy-efficient building retrofits

Diamond, Richard

185

Assessment of Pollutant Spread from a Building Basement with three Ventilation Systems  

E-Print Network [OSTI]

Ventilation aims at providing a sufficient air renewal for ensuring a good indoor air quality (IAQ), yet building energy policies are leading to adapting various ventilation strategies minimising energy losses through air renewal. A recent IAQ evaluation campaign in French dwellings shows important pollution of living spaces by VOCs such as formaldehyde, acetaldehyde or hexanal, particularly in buildings equipped with a garage. Besides, radon emission from soil is a subject of concern in many countries. Several studies are done to understand its release mode and deal with the spread of this carcinogen gas. This paper aims to experimentally assess a contaminant spread from a house basement using mechanical exhaust and balanced ventilation systems, and natural ventilation.

Koffi, Juslin

2010-01-01T23:59:59.000Z

186

Simulation of wind driven ventilative cooling systems for an apartment building in Beijing and Shanghai  

E-Print Network [OSTI]

produce energy for buildings and industry. In order to reduce pollution and greenhouse gas emissions ventilation, CFD, Energy analysis 1. Introduction Throughout the entire world, buildings are major consumers of energy and major sources of greenhouse gas emissions. In China, buildings consume 17% of the total energy

Chen, Qingyan "Yan"

187

Summer Infiltration/Ventilation Test Results from the FRTF Laboratory...  

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

Summer InfiltrationVentilation Test Results from the FRTF Laboratory Summer InfiltrationVentilation Test Results from the FRTF Laboratory This presentation was delivered at the...

188

Noninvasive Positive Pressure Ventilation in the Emergency  

E-Print Network [OSTI]

of ventilatory assis- tance to the respiratory system without an invasive artificial airway. Nonin- vasive of the tank ventilator or the ``iron lung'' was the most common form of mechanical ventilation outside showed that he could improve the survival of patients who had respiratory paralysis by using invasive

189

Incremental learning for automated knowledge capture.  

SciTech Connect (OSTI)

People responding to high-consequence national-security situations need tools to help them make the right decision quickly. The dynamic, time-critical, and ever-changing nature of these situations, especially those involving an adversary, require models of decision support that can dynamically react as a situation unfolds and changes. Automated knowledge capture is a key part of creating individualized models of decision making in many situations because it has been demonstrated as a very robust way to populate computational models of cognition. However, existing automated knowledge capture techniques only populate a knowledge model with data prior to its use, after which the knowledge model is static and unchanging. In contrast, humans, including our national-security adversaries, continually learn, adapt, and create new knowledge as they make decisions and witness their effect. This artificial dichotomy between creation and use exists because the majority of automated knowledge capture techniques are based on traditional batch machine-learning and statistical algorithms. These algorithms are primarily designed to optimize the accuracy of their predictions and only secondarily, if at all, concerned with issues such as speed, memory use, or ability to be incrementally updated. Thus, when new data arrives, batch algorithms used for automated knowledge capture currently require significant recomputation, frequently from scratch, which makes them ill suited for use in dynamic, timecritical, high-consequence decision making environments. In this work we seek to explore and expand upon the capabilities of dynamic, incremental models that can adapt to an ever-changing feature space.

Benz, Zachary O.; Basilico, Justin Derrick; Davis, Warren Leon,; Dixon, Kevin R.; Jones, Brian S.; Martin, Nathaniel; Wendt, Jeremy Daniel

2013-12-01T23:59:59.000Z

190

US Department of Energys Regulatory Negotiations Convening on Commercial Certification for Heating, Ventilating, Air-Conditioning, and Refrigeration Equipment  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartment of EnergyofProject is on Track| Department ofof Energy USofDepartment ofUS

191

UC Berkeley Heat/Ventilation Curtailment Period DECEMBER 24, 2011 through JANUARY 1, 2012  

E-Print Network [OSTI]

and January 1, 2012 in order to conserve energy, most campus buildings will be closed and heat and ventilation that a building be exempt from energy curtailment. If you would like to request that your building be exempt from. Technical questions or concerns about energy curtailment can be directed to Gilbert Escobar at 3

California at Irvine, University of

192

owi'3:%l OORNL/CON-75 Effect of Forced Ventilation on  

E-Print Network [OSTI]

energy consumption. SUMMARY An experiment was conducted at the Tennessee Energy Conservation in Housing.S. Department of Commerce 5285 Port Royal Road, Springfield, Virginia 22161 NTIS price codes-Printed Copy: A03-eng-26 Energy Division EFFECT OF FORCED VENTILATION ON HOUSE INFILTRATION W. P. Levins DEPARTMENT

Oak Ridge National Laboratory

193

Balancing energy conservation and occupant needs in ventilation rate standards for Big Box stores and other commercial buildings in California: Issues related to the ASHRAE 62.1 Indoor Air Quality Procedure  

E-Print Network [OSTI]

control should be the first priority instead of dilution of pollutants by ventilation or by cleaning the air.air quality, could better provide healthful indoor environments, and also reward designers and owners who control indoor pollutantsair quality, could better document healthful indoor environments, and also reward designers and owners who control indoor pollutants

Mendell, Mark

2014-01-01T23:59:59.000Z

194

ANALYSIS OF THE CALIFORNIA ENERGY INDUSTRY  

E-Print Network [OSTI]

California Energy Supply Model Operation Resource Requirements Dimensions of Housing Types , Annual Incremental Energy and Capacity Savings from Passive Solar

Authors, Various

2010-01-01T23:59:59.000Z

195

Method of increments for the halogen molecular crystals: Cl, Br, and I  

SciTech Connect (OSTI)

Method of increments (MI) calculations reveal the n-body correlation contributions to binding in solid chlorine, bromine, and iodine. Secondary binding contributions as well as d-correlation energies are estimated and compared between each solid halogen. We illustrate that binding is entirely determined by two-body correlation effects, which account for >80% of the total correlation energy. One-body, three-body, and exchange contributions are repulsive. Using density-fitting (DF) local coupled-cluster singles, doubles, and perturbative triples for incremental calculations, we obtain excellent agreement with the experimental cohesive energies. MI results from DF local second-order Møller-Plesset perturbation (LMP2) yield considerably over-bound cohesive energies. Comparative calculations with density functional theory and periodic LMP2 method are also shown to be less accurate for the solid halogens.

Steenbergen, Krista G. [Physikalische und Theoretische Chemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin (Germany); MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, P.O. Box 600, Wellington 6012 (New Zealand); Gaston, Nicola [MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, P.O. Box 600, Wellington 6012 (New Zealand); Müller, Carsten; Paulus, Beate [Physikalische und Theoretische Chemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin (Germany)

2014-09-28T23:59:59.000Z

196

Development of a Residential Integrated Ventilation Controller  

E-Print Network [OSTI]

and Ventilation Center. Emmerich, S.J, Dols, W.S. , “LoopDA:8 Int. IPBSA Conf. (2003) Emmerich S.J. Nabinger, S. J. “53484. Wallace, L. A. , Emmerich, S. J. , and Howard-Reed,

Walker, Iain

2013-01-01T23:59:59.000Z

197

Midlevel Ventilation's Constraint on Tropical Cyclone Intensity  

E-Print Network [OSTI]

Midlevel ventilation, or the flux of low-entropy air into the inner core of a tropical cyclone (TC), is a hypothesized mechanism by which environmental vertical wind shear can constrain a tropical cyclone’s intensity. An ...

Tang, Brian Hong-An

198

Floor-supply displacement ventilation system  

E-Print Network [OSTI]

Research on indoor environments has received more attention recently because reports of symptoms and other health complaints related to indoor environments have been increasing. Heating, ventilating, and air-conditioning ...

Kobayashi, Nobukazu, 1967-

2001-01-01T23:59:59.000Z

199

Midlevel ventilation's constraint on tropical cyclone intensity  

E-Print Network [OSTI]

Midlevel ventilation, or the flux of low-entropy air into the inner core of a tropical cyclone (TC), is a hypothesized mechanism by which environmental vertical wind shear can constrain a TC's intensity. An idealized ...

Tang, Brian Hong-An

2010-01-01T23:59:59.000Z

200

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT DEMANDCONTROLLED VENTILATION AND CLASSROOM VENTILATION SEPTEMBER 2009 CEC5002013057 Prepared for: California Energy. Sullivan Indoor Environment Group Energy Analysis and Environmental Impacts Department Lawrence Berkeley

Note: This page contains sample records for the topic "incremental ventilation energy" 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

TR-IIS-11-006 Learning Boolean Functions Incrementally  

E-Print Network [OSTI]

TR-IIS-11-006 Learning Boolean Functions Incrementally Yu-Fang Chen and Bow-Yaw Wang Dec. 31, 2011;Learning Boolean Functions Incrementally Yu-Fang Chen and Bow-Yaw Wang Academia Sinica, Taiwan Abstract of verifying a system composed of two components. This work is partially supported by the National Science

Chen, Sheng-Wei

202

Utility maximization in models with conditionally independent increments  

E-Print Network [OSTI]

Utility maximization in models with conditionally independent increments Jan Kallsen Johannes Muhle-Karbe Abstract We consider the problem of maximizing expected utility from terminal wealth in models for power utility under the assumption that the increments of the asset price are independent conditionally

Kallsen, Jan

203

Test Plan to Evaluate the Relationship Among IAQ, Comfort, Moisture, and Ventilation in Humid Climates  

SciTech Connect (OSTI)

This experimental plan describes research being conducted by Pacific Northwest National Laboratory (PNNL), in coordinatation with Florida Solar Energy Center (FSEC), Florida HERO, and Lawrence Berkeley National Laboratory (LBNL) to evaluate the impact of ventilation rate on interior moisture levels, temperature distributions, and indoor air contaminant concentrations. Specifically, the research team will measure concentrations of indoor air contaminants, ventilation system flow rates, energy consumption, and temperature and relative humidity in ten homes in Gainesville, FL to characterize indoor pollutant levels and energy consumption associated with the observed ventilation rates. PNNL and FSEC have collaboratively prepared this experimental test plan, which describes background and context for the proposed study; the experimental design; specific monitoring points, including monitoring equipment, and sampling frequency; key research questions and the associated data analysis approach; experimental logistics, including schedule, milestones, and team member contact information; and clearly identifies the roles and responsibilities of each team in support of project objectives.

Widder, Sarah H.; Martin, Eric

2013-03-15T23:59:59.000Z

204

Energy Recovery Ventilator Membrane Efficiency Testing  

E-Print Network [OSTI]

) vc Kinematic Viscosity (m2/s) W Width of Duct (m) w Absolute Humidity (kg water/ kg air) ? Efficiency (%) ? Density of Fluid (kg/m3) ? Viscosity of Fluid (Pa*s) Subscripts a Air c Cold Side c Convective c Cross Sectional Area h Hot Side... .................................................. 55 Figure 25 Cold Side Temperatures vs. Ambient ................................................ 55 Figure 26 Relative Humidities vs. Ambient ........................................................ 56 xi Page Figure 27 Hot Side...

Rees, Jennifer Anne

2013-05-07T23:59:59.000Z

205

Laboratory Evaluation of Energy Recovery Ventilators  

SciTech Connect (OSTI)

This document is no longer available. Please contact Stacey.Rothgeb@nrel.gov for further information.

Kosar, D.

2013-05-01T23:59:59.000Z

206

Ventilation in Multifamily Buildings | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartment of EnergyofProject is onModeling andReport ||StudentFuelVehicle and|

207

Lightweight ventilated facade prototype: acoustic performance evaluation when the ventilation surface of  

E-Print Network [OSTI]

Lightweight ventilated facade prototype: acoustic performance evaluation when the ventilation del Vall`es, 08173 Barcelona, Spain arquiniampira@yahoo.com Proceedings of the Acoustics 2012 Nantes potentially improve buildings protection against noise pollution from outside. However, in this system the air

Boyer, Edmond

208

Should Title 24 Ventilation Requirements Be Amended to include an Indoor Air Quality Procedure?  

SciTech Connect (OSTI)

Minimum outdoor air ventilation rates (VRs) for buildings are specified in standards, including California?s Title 24 standards. The ASHRAE ventilation standard includes two options for mechanically-ventilated buildings ? a prescriptive ventilation rate procedure (VRP) that specifies minimum VRs that vary among occupancy classes, and a performance-based indoor air quality procedure (IAQP) that may result in lower VRs than the VRP, with associated energy savings, if IAQ meeting specified criteria can be demonstrated. The California Energy Commission has been considering the addition of an IAQP to the Title 24 standards. This paper, based on a review of prior data and new analyses of the IAQP, evaluates four future options for Title 24: no IAQP; adding an alternate VRP, adding an equivalent indoor air quality procedure (EIAQP), and adding an improved ASHRAE-like IAQP. Criteria were established for selecting among options, and feedback was obtained in a workshop of stakeholders. Based on this review, the addition of an alternate VRP is recommended. This procedure would allow lower minimum VRs if a specified set of actions were taken to maintain acceptable IAQ. An alternate VRP could also be a valuable supplement to ASHRAE?s ventilation standard.

Dutton, Spencer M.; Mendell, Mark J.; Chan, Wanyu R.

2013-05-13T23:59:59.000Z

209

MODELING VENTILATION SYSTEM RESPONSE TO FIRE  

SciTech Connect (OSTI)

Fires in facilities containing nuclear material have the potential to transport radioactive contamination throughout buildings and may lead to widespread downwind dispersal threatening both worker and public safety. Development and implementation of control strategies capable of providing adequate protection from fire requires realistic characterization of ventilation system response which, in turn, depends on an understanding of fire development timing and suppression system response. This paper discusses work in which published HEPA filter data was combined with CFAST fire modeling predictions to evaluate protective control strategies for a hypothetical DOE non-reactor nuclear facility. The purpose of this effort was to evaluate when safety significant active ventilation coupled with safety class passive ventilation might be a viable control strategy.

Coutts, D

2007-04-17T23:59:59.000Z

210

Using Incremental Fuzzy Clustering to Web Usage Saeed R. Aghabozorgi  

E-Print Network [OSTI]

Using Incremental Fuzzy Clustering to Web Usage Mining Saeed R. Aghabozorgi Department of Information Science, Faculty of Computer Science and Information Technology University of Malaya Kuala Lumpur Science and Information Technology University of Malaya Kuala Lumpur, Malaysia tehyw

Hammerton, James

211

Implementing Incremental Code Migration with XML Wolfgang Emmerich, Cecilia Mascolo  

E-Print Network [OSTI]

Implementing Incremental Code Migration with XML Wolfgang Emmerich, Cecilia Mascolo and Anthony Finkelstein Dept. of Computer Science University College London Gower Street, London WC1E 6BT, UK fW.Emmerich

Finkelstein, Anthony

212

CoEvolutionary Incremental Modelling of Robotic Cognitive Mechanisms  

E-Print Network [OSTI]

, trahania}@ics.forth.gr Abstract. Recently, brain models attempt to support cognitive abili- ties work introduces a novel com- putational framework for incremental brain modelling, which aims properly formulated neural agents to represent brain areas. A collaborative coevolutionary method

Trahanias, Panos

213

INCREMENTAL LEARNING OF NDE SIGNALS WITH CONFIDENCE ESTIMATION  

E-Print Network [OSTI]

INCREMENTAL LEARNING OF NDE SIGNALS WITH CONFIDENCE ESTIMATION Robi Polikar Department evaluation (NDE) applications resort to pattern recognition and machine learning algorithms for automated classification and characterization of NDE signals. Applications of such systems include defect identification

Polikar, Robi

214

Natural ventilation : design for suburban houses in Thailand  

E-Print Network [OSTI]

Natural Ventilation is the most effective passive cooling design strategy for architecture in hot and humid climates. In Thailand, natural ventilation has been the most essential element in the vernacular architecture such ...

Tantasavasdi, Chalermwat, 1971-

1998-01-01T23:59:59.000Z

215

Study of natural ventilation in buildings with large eddy simulation  

E-Print Network [OSTI]

With the discovery of many economic, environmental, and health problems in sealed and mechanically ventilated buildings, the concept of natural ventilation has been revived. "Buildings that breathe" have become more and ...

Jiang, Yi, 1972-

2002-01-01T23:59:59.000Z

216

Application Study on Combined Ventilation System of Improving IAQ  

E-Print Network [OSTI]

A type of combined ventilating system is put forward in this paper. Through CFD simulation and testing of contaminant concentrations in a prototype residential room, the results demonstrate that the new ventilating system is advantageous...

Hu, S.; Li, G.; Zhang, C.; Ye, B.

2006-01-01T23:59:59.000Z

217

Policy Flash 2015-02 INCREMENTALLY FUNDING FIXED-PRICE ACTIONS...  

Office of Environmental Management (EM)

02 INCREMENTALLY FUNDING FIXED-PRICE ACTIONS Policy Flash 2015-02 INCREMENTALLY FUNDING FIXED-PRICE ACTIONS Questions concerning this policy flash should be directed to Michael...

218

Determination of age in forensic dentistry from cemental incremental lines  

E-Print Network [OSTI]

discrimination of incremental lines with accuracy and repeatability. Therefore, the purposes of this study are (1) to develop a technique for enhancing the incremen al lines n the dental cementum; (2) to evaluate the accuracy of age estimates based... economically applied to evaluate and count the incremental lines in the dental cementum. In this study nondemineralized cross-sections of human teeth were evaluated. This method was cnosen because the decalcification process is not only a time...

Sousa, Eliane Marques Duarte de

1987-01-01T23:59:59.000Z

219

Effect of repository underground ventilation on emplacement drift temperature control  

SciTech Connect (OSTI)

The repository advanced conceptual design (ACD) is being conducted by the Civilian Radioactive Waste Management System, Management & Operating Contractor. Underground ventilation analyses during ACD have resulted in preliminary ventilation concepts and design methodologies. This paper discusses one of the recent evaluations -- effects of ventilation on emplacement drift temperature management.

Yang, H.; Sun, Y.; McKenzie, D.G.; Bhattacharyya, K.K. [Morrison Knudson Corporation, Las Vegas, NV (United States)

1996-02-01T23:59:59.000Z

220

Japan's Long-term Energy Demand and Supply Scenario to 2050 - Estimation for the Potential of Massive CO2 Mitigation  

E-Print Network [OSTI]

ventilation) Introducing net zero energy buildings IncreasedPotential for Achieving Net Zero-Energy Buildings in the

Komiyama, Ryoichi

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Wireless Ventilation Control for Large-Scale Systems: the Mining Industrial Case  

E-Print Network [OSTI]

- University of L'Aquila, L'Aquila, Italy. 3 Automatic Control Department, SUPELEC, Gif sur Yvette, France. 4 strategies for fluid systems (pumps, fans and compressors) represent approximately 20 % of the total % or more of the energy consumed by the mining process may go into the ventilation (including heating

Boyer, Edmond

222

Simulating Natural Ventilation in and Around Buildings by Fast Fluid Mingang Jin1  

E-Print Network [OSTI]

]. It is preferred over mechanical ventilation for sustainable building design. However, the design of natural is a sustainable building technology that can provide a good indoor environment and save energy [1]. These factors should be thoroughly considered at the early stage of building design in order to achieve good

Chen, Qingyan "Yan"

223

Experimental simulation of wind driven cross-ventilation in a naturally ventilated building  

E-Print Network [OSTI]

A device was designed and constructed to simulate cross-ventilation through a building due to natural wind. The wind driver device was designed for use with a one tenth scale model of an open floor plan office building in ...

Hult, Erin L. (Erin Luelle), 1982-

2004-01-01T23:59:59.000Z

224

Air Distribution Effectiveness for Different Mechanical Ventilation  

E-Print Network [OSTI]

LBNL-62700 Air Distribution Effectiveness for Different Mechanical Ventilation Systems Max H Orlando Lawrence Berkeley National Laboratory is an equal opportunity employer. #12;1 Air Distribution depending on the effectiveness of their air distribution systems and the location of sources and occupants

225

Hysteresis effects in hybrid building ventilation  

E-Print Network [OSTI]

of substandard quality · Poor IAQ is often due to external pollution e.g. industrial/automotive exhaust · However chloride, etc. Developing world: By-products of cooking or heating fires Ghiaus & Allard (2005) · Exposure of poor IAQ · In contrast to traditional HVAC systems, natural ventilation relies on freely

Flynn, Morris R.

226

Does Mixing Make Residential Ventilation More Effective?  

SciTech Connect (OSTI)

Ventilation dilutes or removes indoor contaminants to reduce occupant exposure. In a multi-zone environment such as a house, there will be different dilution rates and different source strengths in every zone. The total ventilation rate is the most important factor in determining the exposure of occupants to given sources, but the zone- specific distribution of exhaust and supply air, and the mixing of ventilation air can have significant roles. Different types of ventilation systems will provide different amounts of mixing depending on several factors such as air leakage through the building envelope, air distribution systems and the location of sources and occupants. This paper reports recent results of investigations to determine the impact that air mixing has on exposures of residential occupants to prototypical contaminants of concern. Evaluations of existing field measurements and simulations reported in the literature are combined with new analyses to provide an integrated overview of the topic. The results show that for extreme cases additional mixing can be a significant factor but for typical homes looking at average exposures mixing is not helpful and can even make exposures worse.

Sherman, Max; Walker, Iain

2010-08-16T23:59:59.000Z

227

A Bench Study of Intensive Care Unit Ventilators: New versus Old and Turbine-Based versus Compressed Gas-Based Ventilators  

E-Print Network [OSTI]

. Material: Four turbine- based ventilators and nine conventional servo-valve compressed-gas ventilators were1 A Bench Study of Intensive Care Unit Ventilators: New versus Old and Turbine-Based versus patient's effort. On average, turbine-based ventilators performed better than conventional ventilators

Paris-Sud XI, Université de

228

A New Ventilation System Integrates Total Energy Recovery, Conventional Cooling and a Novel 'Passive' Dehumidification Wheel to Mitigate the Energy, Humidity Control and First Cost Concerns Often Raised when Designing for ASHRAE Standard 62-1999 Compliance  

E-Print Network [OSTI]

This paper introduces a novel, ''passive" desiccant based outdoor air preconditioning system (PDH) that is shown to be significantly more energy-efficient than all known alternatives, and has the unique ability to dehumidify outdoor air streams...

Fischer, J. C.

2000-01-01T23:59:59.000Z

229

The International Journal of Ventilation  

E-Print Network [OSTI]

to Support Sustainable Building Design: Emmerich SJ and Persily AK 331 Recent Applications of Aerosol Sealing Energy Consumption: Ng LC, Persily AK and Emmerich SJ 369 Airtightness Assessment of Single Family Houses

California at Davis, University of

230

CO2 MONITORING FOR DEMAND CONTROLLED VENTILATION IN COMMERCIAL BUILDINGS  

SciTech Connect (OSTI)

Carbon dioxide (CO{sub 2}) sensors are often deployed in commercial buildings to obtain CO{sub 2} data that are used, in a process called demand-controlled ventilation, to automatically modulate rates of outdoor air ventilation. The objective is to keep ventilation rates at or above design specifications and code requirements and also to save energy by avoiding excessive ventilation rates. Demand controlled ventilation is most often used in spaces with highly variable and sometime dense occupancy. Reasonably accurate CO{sub 2} measurements are needed for successful demand controlled ventilation; however, prior research has suggested substantial measurement errors. Accordingly, this study evaluated: (a) the accuracy of 208 CO{sub 2} single-location sensors located in 34 commercial buildings, (b) the accuracy of four multi-location CO{sub 2} measurement systems that utilize tubing, valves, and pumps to measure at multiple locations with single CO{sub 2} sensors, and (c) the spatial variability of CO{sub 2} concentrations within meeting rooms. The field studies of the accuracy of single-location CO{sub 2} sensors included multi-concentration calibration checks of 90 sensors in which sensor accuracy was checked at multiple CO{sub 2} concentrations using primary standard calibration gases. From these evaluations, average errors were small, -26 ppm and -9 ppm at 760 and 1010 ppm, respectively; however, the averages of the absolute values of error were 118 ppm (16%) and 138 ppm (14%), at concentrations of 760 and 1010 ppm, respectively. The calibration data are generally well fit by a straight line as indicated by high values of R{sup 2}. The Title 24 standard specifies that sensor error must be certified as no greater than 75 ppm for a period of five years after sensor installation. At 1010 ppm, 40% of sensors had errors greater than {+-}75 ppm and 31% of sensors has errors greater than {+-}100 ppm. At 760 ppm, 47% of sensors had errors greater than {+-}75 ppm and 37% of sensors had errors greater than {+-}100 ppm. A significant fraction of sensors had errors substantially larger than 100 ppm. For example, at 1010 ppm, 19% of sensors had an error greater than 200 ppm and 13% of sensors had errors greater than 300 ppm. The field studies also included single-concentration calibration checks of 118 sensors at the concentrations encountered in the buildings, which were normally less than 500 ppm during the testing. For analyses, these data were combined with data from the calibration challenges at 510 ppm obtained during the multi-concentration calibration checks. For the resulting data set, the average error was 60 ppm and the average of the absolute value of error was 154 ppm. Statistical analyses indicated that there were statistically significant differences between the average accuracies of sensors from different manufacturers. Sensors with a 'single lamp single wavelength' design tended to have a statistically significantly smaller average error than sensors with other designs except for 'single lamp dual wavelength' sensors, which did not have a statistically significantly lower accuracy. Sensor age was not consistently a statistically significant predictor of error.

Fisk, William J.; Sullivan, Douglas P.; Faulkner, David; Eliseeva, Ekaterina

2010-03-17T23:59:59.000Z

231

Field-Evaluation of Alternative HVAC Strategies to Meet Ventilation, Comfort and Humidity Control Criteria at Three Full-Serve Restaurants  

E-Print Network [OSTI]

Lighting and ventilation represent the majority of the air conditioning loads in office buildings in hot humid climates. Use of motion sensors is one way to minimize the energy used for these loads. This paper describes the methods used...

Yborra, S. C.; Spears, J. W.

2000-01-01T23:59:59.000Z

232

Incremental Implementation of Energy Management at Industrial Facilities  

E-Print Network [OSTI]

management practice by implementing the management system standard, most are intimidated by the perceived complexity and sweeping authority of the standard and elect not to pursue formal implementation. While the standard does require coordinated...

Brown, M.; Key, G.

2005-01-01T23:59:59.000Z

233

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.

234

Hospital Energy Benchmarking Guidance - Version 1.0  

E-Print Network [OSTI]

ventilation site energy intensity of California hospitalsSep-2009 Lighting site energy intensity for all Californiafor lighting site energy intensity of California nursing

Singer, Brett C.

2010-01-01T23:59:59.000Z

235

The WIPP Underground Ventilation System  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2 andThe MolecularPlaceThe publication of the Office,

236

Balancing energy conservation and occupant needs in ventilation rate standards for Big Box stores and other commercial buildings in California: Issues related to the ASHRAE 62.1 Indoor Air Quality Procedure  

E-Print Network [OSTI]

Achieving IAQ and Energy Conservation Goals with ASHRAEBalancing energy conservation and occupant needs in  500-99-013 Balancing energy conservation and occupant needs

Mendell, Mark

2014-01-01T23:59:59.000Z

237

Incremental Machine Descriptions for GCC Sameera Deshpande Uday P. Khedker  

E-Print Network [OSTI]

Incremental Machine Descriptions for GCC Sameera Deshpande Uday P. Khedker Indian Institute of Technology, Bombay {sameera,uday}@cse.iitb.ac.in Abstract The mechanism of providing machine descriptions a GCC port exists. However, this mechanism is quite ad hoc and the machine descriptions are dif- ficult

Khedker, Uday

238

A Polynomial Time Incremental Algorithm for Learning DFA  

E-Print Network [OSTI]

and membership queries. This algorithm is an extension of Angluin's ID pro­ cedure to an incremental framework that the modified hypoth­ esis is consistent with all examples observed thus far. The algorithm is guaranteed a knowledgeable teacher who responds to queries generated by the learner. Angluin's ID algorithm learns the target

Honavar, Vasant

239

Replication-Based Incremental Copying Collection Scott Nettles  

E-Print Network [OSTI]

Replication-Based Incremental Copying Collection Scott Nettles 1, James O'Tool e 2, David Pi erce 3 for mai ntai ni ng consi stency may be appl i ed. In our i mpl ementati on for Standard ML of New

Williams, Brian C.

240

The Use of Associative Concepts in the Incremental Building  

E-Print Network [OSTI]

The Use of Associative Concepts in the Incremental Building of a Logical Context S'ebastien Ferr. Because of the changing nature of users' intentions, the assistance given in the incremen­ tal building are incoming emails. In this application, the building of the context is clearly on­line; and possible

Ferré, Sébastien

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Incremental Web Search: Tracking Changes in the Web  

E-Print Network [OSTI]

Incremental Web Search: Tracking Changes in the Web by Ziyang Wang A dissertation submitted #12; Abstract A large amount of new information is posted on the Web every day. Large­scale web search. In this thesis, we present our solutions of searching new information from the web by tracking the changes of web

Mohri, Mehryar

242

Incremental Web Search: Tracking Changes in the Web  

E-Print Network [OSTI]

Incremental Web Search: Tracking Changes in the Web by Ziyang Wang A dissertation submitted amount of new information is posted on the Web every day. Large-scale web search engines often update our solutions of searching new information from the web by tracking the changes of web documents

Mohri, Mehryar

243

An Incremental and Nonbinary CSP Solver: The Hyperpolyhedron Search Algorithm  

E-Print Network [OSTI]

An Incremental and Non­binary CSP Solver: The Hyperpolyhedron Search Algorithm Miguel A. Salido and scheduling can be expressed in a natural way as a Constraint Satisfaction Problem (CSP). It is well known that a non­binary CSP can be transformed into an equivalent binary CSP using some of the actual techniques

Rossi, Francesca

244

Incremental Semi-Supervised Subspace Learning for Image  

E-Print Network [OSTI]

Preserving): where and Solution: A is the d eigen vectors corresponding the d smallest eigen values of XLXTIncremental Semi-Supervised Subspace Learning for Image Retrieval Author: Xiaofei He Presented Projection (LPP) Incremental Semi-Supervised LPP Experiment Results and Analysis #12;Subspace Learning

Tian, Qi

245

Computer Simulation of Cooling Effect of Wind Tower on Passively Ventilated Building  

E-Print Network [OSTI]

Computer Simulation of Cooling Effect of Wind Tower on Passively Ventilated Building John Seryak Kelly Kissock Project Engineer Associate Professor Department of Mechanical and Aerospace Engineering... University of Dayton Dayton, Ohio ABSTRACT Traditional buildings are cooled and ventilated by mechanically induced drafts. Natural ventilation aspires to cool and ventilate a building by natural means, such as cross ventilation or wind towers...

Seryak, J.; Kissock, J. K.

2002-01-01T23:59:59.000Z

246

Balancing energy conservation and occupant needs in ventilation rate standards for Big Box stores and other commercial buildings in California: Issues related to the ASHRAE 62.1 Indoor Air Quality Procedure  

E-Print Network [OSTI]

EUI) predicted with building energy models created using theusing EPA model ? Health benefits of reduced energy usage (

Mendell, Mark

2014-01-01T23:59:59.000Z

247

Interstate Power and Light (Alliant Energy)- Farm Equipment Energy Efficiency Incentives  

Broader source: Energy.gov [DOE]

Alliant Energy offers prescriptive rebates for a variety of energy efficient products for agricultural customers. These include irrigation equipment, dairy equipment, ventilation systems,...

248

Radionuclide Releases During Normal Operations for Ventilated Tanks  

SciTech Connect (OSTI)

This calculation estimates the design emissions of radionuclides from Ventilated Tanks used by various facilities. The calculation includes emissions due to processing and storage of radionuclide material.

Blunt, B.

2001-09-24T23:59:59.000Z

249

Measured Air Distribution Effectiveness for Residential Mechanical Ventilation Systems  

E-Print Network [OSTI]

In Review J. Indoor Air) 2007 LBNL-63193 Tarantola, Albert,Gas Measurement to Determine Air Movements in a House,Measurement Techniques”, Air Infiltration and Ventilation

Sherman, Max H.

2008-01-01T23:59:59.000Z

250

2014-02-07 Issuance: Certification of Commercial Heating, Ventilation...  

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

Certification of Commercial Heating, Ventilation, and Air-conditioning, Water Heating, and Refrigeration Equipment; Notice of Proposed Rulemaking 2014-02-07 Issuance: Certification...

251

Impact of Infiltration and Ventilation on Measured Space Conditioning...  

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

Hot-humid PERFORMANCE DATA Costs for reducing infiltration and incorporating mechanical ventilation in buildings will vary greatly depending on the condition and...

252

Ventilation System to Improve Savannah River Site's Liquid Waste...  

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

A process vessel ventilation system is being installed in a facility that houses two tanks that will process decontaminated salt solution at the Saltstone Production Facility. A...

253

Kitchen Ventilation Should be High Performance (Not Optional...  

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

Simplified PROBLEM: * Cooking burners & cooking produce odors, moisture and pollutants SOLUTION: * Install and use extra exhaust ventilation in kitchen OPTIMAL SOLUTION: *...

254

Position paper -- Tank ventilation system design air flow rates  

SciTech Connect (OSTI)

The purpose of this paper is to document a project position on required ventilation system design air flow rates for the waste storage tanks currently being designed by project W-236A, the Multi-Function Waste Tank Facility (MWTF). The Title 1 design primary tank heat removal system consists of two systems: a primary tank vapor space ventilation system; and an annulus ventilation system. At the conclusion of Title 1 design, air flow rates for the primary and annulus ventilation systems were 960 scfm and 4,400 scfm, respectively, per tank. These design flow rates were capable of removing 1,250,000 Btu/hr from each tank. However, recently completed and ongoing studies have resulted in a design change to reduce the extreme case heat load to 700,000 Btu/hr. This revision of the extreme case heat load, coupled with results of scale model evaporative testing performed by WHC Thermal Hydraulics, allow for a reduction of the design air flow rates for both primary and annulus ventilation systems. Based on the preceding discussion, ICF Kaiser Hanford Co. concludes that the design should incorporate the following design air flow rates: Primary ventilation system--500 scfm maximum and Annulus ventilation system--1,100 scfm maximum. In addition, the minimum air flow rates in the primary and annulus ventilation systems will be investigated during Title 2 design. The results of the Title 2 investigation will determine the range of available temperature control using variable air flows to both ventilation systems.

Goolsby, G.K.

1995-01-04T23:59:59.000Z

255

M.H. Sherman, J.M. Logue, B.C. Singer, Infiltration Effects on Residential Pollutant Concentrations for Continuous and Intermittent Mechanical Ventilation Approaches -LBNL Report Number 3978-E  

E-Print Network [OSTI]

for Continuous and Intermittent Mechanical Ventilation Approaches - LBNL Report Number 3978-E M.H. Sherman, J and Intermittent Mechanical Ventilation Approaches - LBNL Report Number 3978-E 1 Infiltration Effects Energy Commission through Contract 500-08-06. LBNL Report Number 3978-E #12;M.H. Sherman, J.M. Logue, B

256

Sensitivity of Tropical Cyclone Intensity to Ventilation in an Axisymmetric Model  

E-Print Network [OSTI]

The sensitivity of tropical cyclone intensity to ventilation of cooler, drier air into the inner core is examined using an axisymmetric tropical cyclone model with parameterized ventilation. Sufficiently strong ventilation ...

Tang, Brian

257

Results of the Evaluation Study DeAL Decentralized Facade Integrated Ventilation Systems  

E-Print Network [OSTI]

Most office buildings in Germany have either no mechanical ventilation system or a centralized ventilation system with fresh and exhaust air supply. Within the last 10 years some projects using decentralized ventilation systems (DVS) came up. Common...

Mahler, B.; Himmler, R.

258

Guide to Closing and Conditioning Ventilated Crawlspaces  

SciTech Connect (OSTI)

This how-to guide explains the issues and concerns with conventional ventilated crawlspaces and provides prescriptive measures for improvements that will create healthier and more durable spaces. The methods described in this guide are not the only acceptable ways to treat a crawlspace but represent a proven strategy that works in many areas of the United States. The designs discussed in this guide may or may not meet the local building codes and as such will need to be researched before beginning the project.

Dickson, B.

2013-01-01T23:59:59.000Z

259

C-106 tank process ventilation test  

SciTech Connect (OSTI)

Project W-320 Acceptance Test Report for tank 241-C-106, 296-C-006 Ventilation System Acceptance Test Procedure (ATP) HNF-SD-W320-012, C-106 Tank Process Ventilation Test, was an in depth test of the 296-C-006 ventilation system and ventilation support systems required to perform the sluicing of tank C-106. Systems involved included electrical, instrumentation, chiller and HVAC. Tests began at component level, moved to loop level, up to system level and finally to an integrated systems level test. One criteria was to perform the test with the least amount of risk from a radioactive contamination potential stand point. To accomplish this a temporary configuration was designed that would simulate operation of the systems, without being connected directly to the waste tank air space. This was done by blanking off ducting to the tank and connecting temporary ducting and an inlet air filter and housing to the recirculation system. This configuration would eventually become the possible cause of exceptions. During the performance of the test, there were points where the equipment did not function per the directions listed in the ATP. These events fell into several different categories. The first and easiest problems were field configurations that did not match the design documentation. This was corrected by modifying the field configuration to meet design documentation and reperforming the applicable sections of the ATP. A second type of problem encountered was associated with equipment which did not operate correctly, at which point an exception was written against the ATP, to be resolved later. A third type of problem was with equipment that actually operated correctly but the directions in the ATP were in error. These were corrected by generating an Engineering Change Notice (ECN) against the ATP. The ATP with corrected directions was then re-performed. A fourth type of problem was where the directions in the ATP were as the equipment should operate, but the design of the equipment was not correct for that type of operation. To correct this problem an ECN was generated against the design documents, the equipment modified accordingly, and the ATP re-performed. The last type of problem was where the equipment operated per the direct ions in the ATP, agreed with the design documents, yet violated requirements of the Basis of Interim Operation (BIO). In this instance a Non Conformance Report (NCR) was generated. To correct problems documented on an NCR, an ECN was generated to modify the design and field work performed, followed by retesting to verify modifications corrected noted deficiencies. To expedite the completion of testing and maintain project schedules, testing was performed concurrent with construct on, calibrations and the performance of other ATP`s.

Bailey, J.W.

1998-07-20T23:59:59.000Z

260

E-Print Network 3.0 - air ventilation rate Sample Search Results  

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

of ventilation rates and CO2-concentrations... : ventilation rates, carbon dioxide, health effects, SBS-symptoms, air exchange rate, relative risks. 12;LBNL... not indicate...

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Buoyancy-Driven Ventilation of Hydrogen from Buildings: Laboratory Test and Model Validation  

SciTech Connect (OSTI)

Passive, buoyancy-driven ventilation is one approach to limiting hydrogen concentration. We explored the relationship between leak rate, ventilation design, and hydrogen concentrations.

Barley, C. D.; Gawlik, K.

2009-05-01T23:59:59.000Z

262

E-Print Network 3.0 - ards mechanical ventilation Sample Search...  

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

mechanical ventilation Search Powered by Explorit Topic List Advanced Search Sample search results for: ards mechanical ventilation Page: << < 1 2 3 4 5 > >> 1 Round table March...

263

ASHRAE Standard 62.2. Ventilation and Acceptable Indoor Air Quality...  

Energy Savers [EERE]

Standard 62.2. Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings More Documents & Publications Low-Cost Ventilation in Production Housing -...

264

Developing evidence-based prescriptive ventilation rate standards for commercial buildings in California: a proposed framework  

E-Print Network [OSTI]

control with ventilation, given current ventilation and filtration system practices, are the indoor-sourced gaseous pollutants with low octanal-air

Mendell, Mark J.

2014-01-01T23:59:59.000Z

265

E-Print Network 3.0 - airway pressure ventilation Sample Search...  

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

of Intensive Care Unit Ventilators: New versus Old and Turbine-Based versus Compressed Gas-Based Ventilators Summary: and airway occlusion pressure during assist-mode mechanical...

266

Maintenance Guide for Greenhouse Ventilation, Evaporative Cooling Heating Systems1  

E-Print Network [OSTI]

when the need is discovered, but a good preventive maintenance program will reduce the number. This fact sheet will emphasize corrective and preventive maintenance procedures for ventilation, evaporativeAE26 Maintenance Guide for Greenhouse Ventilation, Evaporative Cooling Heating Systems1 D. E

Watson, Craig A.

267

CONFIDENTIAL: DO NOT QUOTE 1 Equivalence in Ventilation and  

E-Print Network [OSTI]

responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process specific commercial product, process, or service by its trade name, trademark, manufacturer, or otherwise ventilate buildings to provide acceptable indoor air quality (IAQ). Ventilation standards (such as American

268

TOP DOWN VENTILATION AND COOLING Stephen A. Gage  

E-Print Network [OSTI]

the problems inherent in passively ventilating and cooling low and medium rise urban buildings. We focus Gage entered a competition to design a passively ventilated and cooled building in Athens on overcoming numerous key issues, such as those of pollutant ingress associated with locating low-level intake

Linden, Paul F.

269

Natural Ventilation Design for Houses in Thailand Chalermwat Tantasavasdia  

E-Print Network [OSTI]

This paper explores the potential of using natural ventilation as a passive cooling system for new house windows in suburban houses can be opened. Passive cooling design elements are mostly ignored in modern1 Natural Ventilation Design for Houses in Thailand Chalermwat Tantasavasdia , Jelena Srebricb

Chen, Qingyan "Yan"

270

Measure Guideline: Selecting Ventilation Systems for Existing Homes  

SciTech Connect (OSTI)

This document addresses adding -or improving - mechanical ventilation systems to existing homes. The purpose of ventilation is to remove contaminants from homes, and this report discusses where, when, and how much ventilation is appropriate in a home, including some discussion of relevant codes and standards. Advantages, disadvantages, and approximate costs of various system types are presented along with general guidelines for implementing the systems in homes. CARB intends for this document to be useful to decision makers and contractors implementing ventilation systems in homes. Choosing the "best" system is not always straightforward; selecting a system involves balancing performance, efficiency, cost, required maintenance, and several other factors. It is the intent of this document to assist contractors in making more informed decisions when selecting systems. Ventilation is an integral part of a high-performance home. With more air-sealed envelopes, a mechanical means of removing contaminants is critical for indoor environmental quality and building durability.

Aldrich, R.

2014-02-01T23:59:59.000Z

271

U.S. Department of Energy NEPA Categorical Exclusion Determination...  

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

an energy audit of City Hall, 3) energy efficient retrofits (heating, ventilating, and air conditioning; lighting; building management system; and building envelope) City Hall...

272

Optimization of Occupancy Based Demand Controlled Ventilation in Residences  

SciTech Connect (OSTI)

Although it has been used for many years in commercial buildings, the application of demand controlled ventilation in residences is limited. In this study we used occupant exposure to pollutants integrated over time (referred to as 'dose') as the metric to evaluate the effectiveness and air quality implications of demand controlled ventilation in residences. We looked at air quality for two situations. The first is that typically used in ventilation standards: the exposure over a long term. The second is to look at peak exposures that are associated with time variations in ventilation rates and pollutant generation. The pollutant generation had two components: a background rate associated with the building materials and furnishings and a second component related to occupants. The demand controlled ventilation system operated at a low airflow rate when the residence was unoccupied and at a high airflow rate when occupied. We used analytical solutions to the continuity equation to determine the ventilation effectiveness and the long-term chronic dose and peak acute exposure for a representative range of occupancy periods, pollutant generation rates and airflow rates. The results of the study showed that we can optimize the demand controlled airflow rates to reduce the quantity of air used for ventilation without introducing problematic acute conditions.

Mortensen, Dorthe K.; Walker, Iain S.; Sherman, Max H.

2011-05-01T23:59:59.000Z

273

Energy Efficiency and Conservation Block Grant Program  

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

Project Description Complete energy audit and replace several heating, ventilating, and air conditioning units on city facilities (Fire Station 181, Fire Station 183, City Hall,...

274

Mixed-Mode Ventilation and Building Retrofits  

E-Print Network [OSTI]

CBEEDAC). University College Dublin. 1997. Solar Energy inintervention. University College Dublin. 1997. Solar Energy

Brager, Gail; Ackerly, Katie

2010-01-01T23:59:59.000Z

275

Text-Alternative Version of Building America Webinar: Multifamily Ventilation Strategies and Compartmentalization Requirements  

Broader source: Energy.gov [DOE]

Transcript of Building America webinar, "Multifamily Ventilation Strategies and Compartmentalization Requirements," held on Sept. 24, 2014.

276

Experimental and numerical VOC concentration field analysis from flooring material in a ventilated room  

E-Print Network [OSTI]

in "7th International Conference, Healthy Buildings 2003, Singapore : Singapore (2003)" #12;Ventilation

Paris-Sud XI, Université de

277

Ventilating Existing Homes in the US Air Infiltration Review. 2010;31(2)  

E-Print Network [OSTI]

mechanical ventilation fan leads to reductions in other measures, such as adding insulation. This has led

278

Experiments to Evaluate and Implement Passive Tracer Gas Methods to Measure Ventilation Rates in Homes  

E-Print Network [OSTI]

Pollutant Control Index: A New Method of Characterizing Ventilation in Commercial Buildings." Proceedings of Indoor Air'

Lunden, Melissa

2014-01-01T23:59:59.000Z

279

Comparison of Two Ventilation Systems in a Chinese Commercial Kitchen  

E-Print Network [OSTI]

A numerical simulation of an indoor thermal environment in a Chinese commercial kitchen has been carried out using indoor zero-equation turbulence model. Two different ventilation systems in a Chinese commercial kitchen have been simulated...

Wan, X.; Yu, L.; Hou, H.

2006-01-01T23:59:59.000Z

280

Key Factors in Displacement Ventilation Systems for Better IAQ  

E-Print Network [OSTI]

This paper sets up a mathematical model of three-dimensional steady turbulence heat transfer in an air-conditioned room of multi-polluting heat sources. Numerical simulation helps identify key factors in displacement ventilation systems that affect...

Wang, X.; Chen, J.; Li, Y.; Wang, Z.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "incremental ventilation energy" 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

SURFACE CIRCULATION AND VENTILATION Lynne D. Talley(1)  

E-Print Network [OSTI]

of autonomous subsurface profiling to include oxygen and turbulence profiling, and implementation of local of subsurface circulation in the wind-driven gyres (section 2), and (2) ventilation/upwelling processes

Talley, Lynne D.

282

Commissioning Trial for Mechanical Ventilation System Installed in Houses  

E-Print Network [OSTI]

, commissioning process should be introduced more often. REFERENCES (1) Roger Anneling, The P-mark system for prefabricated houses in Sweden, 1998, CADDET (2) Hirai et al, Comparison between results from ventilation network model calculation...

Ohta, I.; Fukushima, A.

2004-01-01T23:59:59.000Z

283

Natural ventilation possibilities for buildings in the United States  

E-Print Network [OSTI]

In the United States, many of the commercial buildings built in the last few decades are completely mechanically air conditioned, without the capability to use natural ventilation. This habit has occurred in building designs ...

Dean, Brian N. (Brian Nathan), 1974-

2001-01-01T23:59:59.000Z

284

CAN SORBENT-BASED GAS PHASE AIR CLEANING FOR VOCS SUBSTITUTE FOR VENTILATION IN COMMERCIAL BUILDINGS?  

SciTech Connect (OSTI)

This paper reviews current knowledge about the suitability of sorbent-based air cleaning for removing volatile organic compounds (VOCs) from the air in commercial buildings, as needed to enable reductions in ventilation rates and associated energy savings. The principles of sorbent air cleaning are introduced, criteria are suggested for sorbent systems that can counteract indoor VOC concentration increases from reduced ventilation, major findings from research on sorbent performance for this application are summarized, and related priority research needs are identified. Major conclusions include: sorbent systems can remove a broad range of VOCs with moderate to high efficiency, sorbent technologies perform effectively when challenged with VOCs at the low concentrations present indoors, and there is a large uncertainty about the lifetime and associated costs of sorbent air cleaning systems when used in commercial buildings for indoor VOC control. Suggested priority research includes: experiments to determine sorbent system VOC removal efficiencies and lifetimes considering the broad range and low concentration of VOCs indoors; evaluations of in-situ regeneration of sorbents; and an updated analysis of the cost of sorbent air cleaning relative to the cost of ventilation.

Fisk, William; Fisk, William J.

2007-08-01T23:59:59.000Z

285

Design Alternative Evaluation No. 3: Post-Closure Ventilation  

SciTech Connect (OSTI)

The objective of this study is to provide input to the Enhanced Design Alternatives (EDA) for License Application Design Selection (LADS). Its purpose is to develop and evaluate conceptual designs for post-closure ventilation alternatives that enhance repository performance. Post-closure ventilation is expected to enhance repository performance by limiting the amount of water contacting the waste packages. Limiting the amount of water contacting the waste packages will reduce corrosion.

Logan, R.C.

1999-06-22T23:59:59.000Z

286

Air exchange effectiveness of conventional and task ventilation for offices  

SciTech Connect (OSTI)

Air quality and comfort complaints within large buildings are often attributed to air distribution problems. We define three air exchange effectiveness parameters related to air distribution. The first two indicate the indoor air flow pattern (i.e., the extent of short circuiting, mixing, or displacement flow) for an entire building or region. The third parameter is most useful for assessments of the spatial variability of ventilation. We also define the air diffusion effectiveness which indicates the air flow pattern within specific rooms or sections of buildings. The results of measurements of these parameters in US office buildings by the authors and other researchers are reviewed. Almost all measurements indicate very limited short circuiting or displacement flow between locations of air supply and removal. However, a moderate degree of short circuiting is evident from a few measurements in rooms with heated supply air. The results of laboratory-based measurements by the authors are consistent with the field data. Our measurements in office buildings do indicate that ventilation rates can vary substantially between indoor locations, probably due to variation in air supply rates between locations rather than variation in the indoor air flow patterns. One possible method of improving air distribution is to employ task ventilation with air supplied closer to the occupant`s breathing zone. We have evaluated two task ventilation systems in a laboratory setting. During most operating conditions, these systems did not provide a region of substantially increased ventilation where occupants breath. However, both systems are capable of providing substantially enhanced ventilation at the breathing zone under some operating conditions. Therefore, task ventilation is a potential option for using ventilation air more effectively.

Fisk, W.J.; Faulkner, D.; Prill, R.J.

1991-12-01T23:59:59.000Z

287

Air exchange effectiveness of conventional and task ventilation for offices  

SciTech Connect (OSTI)

Air quality and comfort complaints within large buildings are often attributed to air distribution problems. We define three air exchange effectiveness parameters related to air distribution. The first two indicate the indoor air flow pattern (i.e., the extent of short circuiting, mixing, or displacement flow) for an entire building or region. The third parameter is most useful for assessments of the spatial variability of ventilation. We also define the air diffusion effectiveness which indicates the air flow pattern within specific rooms or sections of buildings. The results of measurements of these parameters in US office buildings by the authors and other researchers are reviewed. Almost all measurements indicate very limited short circuiting or displacement flow between locations of air supply and removal. However, a moderate degree of short circuiting is evident from a few measurements in rooms with heated supply air. The results of laboratory-based measurements by the authors are consistent with the field data. Our measurements in office buildings do indicate that ventilation rates can vary substantially between indoor locations, probably due to variation in air supply rates between locations rather than variation in the indoor air flow patterns. One possible method of improving air distribution is to employ task ventilation with air supplied closer to the occupant's breathing zone. We have evaluated two task ventilation systems in a laboratory setting. During most operating conditions, these systems did not provide a region of substantially increased ventilation where occupants breath. However, both systems are capable of providing substantially enhanced ventilation at the breathing zone under some operating conditions. Therefore, task ventilation is a potential option for using ventilation air more effectively.

Fisk, W.J.; Faulkner, D.; Prill, R.J.

1991-12-01T23:59:59.000Z

288

Evaluation of pulmonary ventilation in horses during methoxyflurane anesthesia  

E-Print Network [OSTI]

EVALUATION OF PULMONARY VENTILATION IN HORSES DURING METHOXYFLURANE ANESTHESIA A Thesis by DON REED McDONALD Submitted to the Graduate College of Texas A8M University in Partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE August 1976 Major Subject: Veterinary Medicine and Surgery EVALUATION OF PULMONARY VENTILATION IN HORSES DURING METHOXYFLURANE ANESTHESIA A Thesis by DON REED McDONALD Approved as to style and content by; Chairman o Committee Head...

McDonald, Don Reed

1976-01-01T23:59:59.000Z

289

Incremental concept formation algorithms based on Galois (concept) Appeared in Computational Intelligence (1995), 11(2), 246-267  

E-Print Network [OSTI]

the batch algorithms in most cases. When only the incremental update time is used, the incremental algorithm as a conceptual clustering method since it results in a concept hierarchy. This article presents incremental algorithms for updating the Galois lattice and corresponding graph, resulting in an incremental concept

Godin, Robert

290

Infrared Properties of Cataclysmic Variables from 2MASS Results from the 2nd Incremental Data Release  

E-Print Network [OSTI]

Because accretion-generated luminosity dominates the radiated energy of most cataclysmic variables, they have been ``traditionally'' observed primarily at short wavelengths. Infrared observations of cataclysmic variables contribute to the understanding of key system components that are expected to radiate at these wavelengths, such as the cool outer disk, accretion stream, and secondary star. We have compiled the J, H, and Ks photometry of all cataclysmic variables located in the sky coverage of the 2 Micron All Sky Survey (2MASS) 2nd Incremental Data Release. This data comprises 251 systems with reliably identified near-IR counterparts and S/N > 10 photometry in one or more of the three near-IR bands.

Hoard, D W; Clark, L L; Bowers, T P; Bowers, Timothy P.

2001-01-01T23:59:59.000Z

291

Incremental ECAP of Tubular Components--FE Simulation  

SciTech Connect (OSTI)

Severe plastic deformation is a method of refining grain structure and improving properties of metallic materials. It is usually carried out on simple billets such as bars, plates and sheets, which are then converted into more complex shapes. One of those shapes, finding applications in many products, is tube. This paper presents an alternative approach to manufacturing tubes with ultrafine grained structure, which is based on direct severe plastic deformation of standard, coarse grained tubes. A new process of incremental equal channel angular pressing is proposed to be used for this purpose. Finite element simulation is used to analyse different process configurations and tool geometry, giving a valuable insight into feasibility of this new approach.

Rosochowski, Andrzej [Design, Manufacture and Engineering Management, University of Strathclyde, 75 Montrose Street, Glasgow G1 1XJ (United Kingdom); Olejnik, Lech [Institute of Materials Processing, Warsaw University of Technology, Narbutta 85, 02-524 Warsaw (Poland)

2011-05-04T23:59:59.000Z

292

Evaluation of an ensemble-based incremental variational data assimilation  

E-Print Network [OSTI]

In this work, we aim at studying ensemble based optimal control strategies for data assimilation. Such formulation nicely combines the ingredients of ensemble Kalman filters and variational data assimilation (4DVar). In the same way as variational assimilation schemes, it is formulated as the minimization of an objective function, but similarly to ensemble filter, it introduces in its objective function an empirical ensemble-based background-error covariance and works in an off-line smoothing mode rather than sequentially like sequential filters. These techniques have the great advantage to avoid the introduction of tangent linear and adjoint models, which are necessary for standard incremental variational techniques. They also allow handling a time varying background covariance matrix representing the error evolution between the estimated solution and a background solution. As this background error covariance matrix -- of reduced rank in practice -- plays a key role in the variational process, our study particularly focuses on the generation of the analysis ensemble state with localization techniques. Besides, to clarify well the differences between the different methods and to highlight the potential pitfall and advantages of the different methods, we present key theoretical properties associated to different choices involved in their setup. We compared experimentally the performances of several variations of an ensemble technique of interest with an incremental 4DVar method. The comparisons have been leaded on the basis of a Shallow Water model and have been carried out both with synthetic data and through a close experimental setup. The cases where the system's components are either fully observed or only partially have been in particular addressed.

Yin Yang; Cordelia Robinson; Dominique Heitz; Etienne Mémin

2014-01-16T23:59:59.000Z

293

Introduction of longitudinal and transverse Lagrangian velocity increments in homogeneous and isotropic turbulence  

E-Print Network [OSTI]

Based on geometric considerations, longitudinal and transverse Lagrangian velocity increments are introduced as components along, and perpendicular to, the displacement of fluid particles during a time scale {\\tau}. It is argued that these two increments probe preferentially the stretching and spinning of material fluid elements, respectively. This property is confirmed (in the limit of vanishing {\\tau}) by examining the variances of these increments conditioned on the local topology of the flow. Interestingly, these longitudinal and transverse Lagrangian increments are found to share some qualitative features with their Eulerian counterparts. In particular, direct numerical simulations at turbulent Reynolds number up to 300 show that the distributions of the longitudinal increment are negatively skewed at all {\\tau}, which is a signature of time irreversibility of turbulence in the Lagrangian framework. Transverse increments are found more intermittent than longitudinal increments, as quantified by the comparison of their respective flatnesses and scaling laws. Although different in nature, standard Lagrangian increments (projected on fixed axis) exhibit scaling properties that are very close to transverse Lagrangian increments.

Emmanuel Leveque; Aurore Naso

2014-12-01T23:59:59.000Z

294

U.S. Department of Energy NEPA Categorical Exclusion Determination...  

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

Plan, and 3) installation of energy efficiency retrofits for the City Hall (1948 - boiler; heating, ventilating, and air conditioning; and lighting systems) and Police...

295

DOE Zero Energy Ready Home Second Production Builder Round Table  

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

HVAC - HVAC with desiccant dehumidification powered by micro Combined Heat and Power (CHP) - Conditioning Energy Recovery Ventilator (CERV) - Conventional HVAC (some with...

296

U.S. Department of Energy Categorical Exclusion Determination...  

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

- Energy Proiect Title: (0289-1545) Architectural Applications - Innovative Building-Integrated Ventilation Enthalpy Recovery Location: California Membrane Technology and Research,...

297

Building America Best Practices Series Vol. 14: Energy Renovations...  

Energy Savers [EERE]

comfort, health, and safety of their homes by upgrading their heating, ventilation, and air conditioning (HVAC) equipment. Energy Renovations: HVAC More Documents & Publications...

298

U.S. Department of Energy NEPA Categorical Exclusion Determination...  

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

county facilities; 3) retrofit the energy management system and heating, ventilating, and air conditioning controls at the county jail; replace boilers at Sarpy County Courthouse;...

299

Efficient Incremental Search for Moving Target Search Xiaoxun Sun William Yeoh Sven Koenig  

E-Print Network [OSTI]

- puter game company Bioware, for example, recently imposed a limit of 1-3 ms on the search time [BulitkoEfficient Incremental Search for Moving Target Search Xiaoxun Sun William Yeoh Sven Koenig Computer, skoenig}@usc.edu Abstract Incremental search algorithms reuse information from previous searches to speed

Yeoh, William

300

RADON DAUGHTER EXPOSURES IN ENERGY EFFICIENT BUILDINGS  

E-Print Network [OSTI]

DAUGHTER EXPOSURES IN ENERGY-EFFICIENT BUILDINGS A.V. Nero,DAUGHTER EXPOSURES IN ENERGY-EFFICIENT BUILDINGS A.V. Nero,vs. VENTILATION IN ENERGY EFFICIENT HOUSES Air change rate(

Nero, A.V.

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Phase-change wallboard and mechanical night ventilation in commercial buildings: Potential for HVAC system downsizing  

SciTech Connect (OSTI)

As thermal storage media, phase-change materials (PCMs) such as paraffin, eutectic salts, etc. offer an order-of-magnitude increase in thermal storage capacity, and their discharge is almost isothermal. By embedding PCMs in dypsum board, plaster, or other wall-covering materials, the building structure acquires latent storage properties. Structural elements containing PCMs can store large amounts of energy while maintaining the indoor temperature within a relatively narrow range. As heat storage takes place inside the building where the loads occur, rather than at a central exterior location, the internal loads are removed without the need for additional transport energy. Distributed latent storage can thus be used to reduce the peak power demand of a building, downsize the cooling system, and/or switch to low-energy cooling sources. The authors used RADCOOL, a thermal building simulation program based on the finite difference approach, to numerically evaluate the thermal performance of PCM wallboard coupled with mechanical night ventilation in office buildings offers the opportunity for system downsizing in climates where the outside air temperature drops below 18 C at night. In climates where the outside air temperature remains above 19 C at night, the use of PCM wallboard should be coupled with discharge mechanisms other than mechanical night ventilation with outside air.

Stetiu, C.; Feustel, H.E.

1998-07-01T23:59:59.000Z

302

Numerical Simulation of a Displacement Ventilation System with Multi-heat Sources and Analysis of Influential Factors  

E-Print Network [OSTI]

Doctor Instructor Professor The key laboratory of clean coal power generation and combustion technology of the ministry of education, southeast university College of energy sources & environment, Inner Mongolia University of Science & Technology...ICEBO2006, Shenzhen, China Maximize Comfort: Temperature, Humidity and IAQ Vol.I-7-1 Numerical Simulation of a Displacement Ventilation System with Multi-heat Sources and Analysis of Influential Factors Xuan Wu Jingfang Gao Wenfei Wu...

Wu, X.; Gao, J.; Wu, W.

2006-01-01T23:59:59.000Z

303

ASHRAE's Residential Ventilation Standard: Exegesis of Proposed Standard 62.2  

E-Print Network [OSTI]

In February 2000, ASHRAE's Standard Project Committee on "Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings", SPC 62.2P7 recommended ASHRAE's first complete standard on residential ventilation for public review...

Sherman, M.

2000-01-01T23:59:59.000Z

304

Beyond blue and red arrows : optimizing natural ventilation in large buildings  

E-Print Network [OSTI]

Our growing understanding of technology and environment has expanded the complexities of producing large naturally ventilated buildings. While it may be argued that designing for natural ventilation is a straightforward, ...

Meguro, Wendy (Wendy Kei)

2005-01-01T23:59:59.000Z

305

Design and prototyping of a low-cost portable mechanical ventilator  

E-Print Network [OSTI]

This paper describes the design and prototyping of a low-cost portable mechanical ventilator for use in mass casualty cases and resource-poor environments. The ventilator delivers breaths by compressing a conventional ...

Powelson, Stephen K. (Stephen Kirby)

2010-01-01T23:59:59.000Z

306

A sweating model for the internal ventilation of a motorcycle Claudio Canutoa  

E-Print Network [OSTI]

A sweating model for the internal ventilation of a motorcycle helmet Claudio Canutoa , Flavio and optimization of the internal ventilation of a motorcycle hel- met, with the purpose of enhancing the comfort

Ceragioli, Francesca

307

Water spray ventilator system for continuous mining machines  

DOE Patents [OSTI]

The invention relates to a water spray ventilator system mounted on a continuous mining machine to streamline airflow and provide effective face ventilation of both respirable dust and methane in underground coal mines. This system has two side spray nozzles mounted one on each side of the mining machine and six spray nozzles disposed on a manifold mounted to the underside of the machine boom. The six spray nozzles are angularly and laterally oriented on the manifold so as to provide non-overlapping spray patterns along the length of the cutter drum.

Page, Steven J. (Pittsburgh, PA); Mal, Thomas (Pittsburgh, PA)

1995-01-01T23:59:59.000Z

308

Building America Webinar: Multifamily Ventilation Strategies and Compartmentalization Requirements- Sean Maxwell  

Broader source: Energy.gov [DOE]

This presentation is included in the Building America webinar, Multifamily Ventilation Strategies and Compartmentalization Requirements, on September 24, 2014.

309

Air flow and particle control with different ventilation systems in a classroom  

E-Print Network [OSTI]

Air flow and particle control with different ventilation systems in a classroom Sture Holmberg, Ph. For displacement ventilation systems, designers normally assume that all pollutants follow the buoyant air flow of the ventilation air flow are shown to play an important role in the control of air quality. Computer simulation

Chen, Qingyan "Yan"

310

2014-02-07 Issuance: Certification of Commercial Heating, Ventilation, and Air-conditioning, Water Heating, and Refrigeration Equipment; Notice of Proposed Rulemaking  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register notice of proposed rulemaking regarding certification of commercial heating, ventilation, and air-conditioning, water-heating, and refrigeration equipment, as issued by the Deputy Assistant Secretary for Energy Efficiency on February 7, 2014.

311

Study on Influencing Factors of Night Ventilation in Office Rooms  

E-Print Network [OSTI]

& Environmental Engineering, Harbin Institute of Technology Harbin P.R.China, 150090 wzjw02@yahoo.com.cn Abstract: A mathematical and physical model on night ventilation is set up. The fields of indoor air temperature, air velocity and thermal comfort...

Wang, Z.; Sun, X.

2006-01-01T23:59:59.000Z

312

Measuring Residential Ventilation System Airflows: Part 1 Laboratory  

E-Print Network [OSTI]

responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process specific commercial product, process, or service by its trade name, trademark, manufacturer, or otherwise airflows? Homes need ventilation to maintain acceptable indoor air quality (IAQ). In older homes

313

Measured Air Distribution Effectiveness for Residential Mechanical Ventilation Systems  

SciTech Connect (OSTI)

The purpose of ventilation is dilute or remove indoor contaminants that an occupant is exposed to. In a multi-zone environment such as a house, there will be different dilution rates and different source strengths in every zone. Most US homes have central HVAC systems, which tend to mix the air thus the indoor conditions between zones. Different types of ventilation systems will provide different amounts of exposure depending on the effectiveness of their air distribution systems and the location of sources and occupants. This paper will report on field measurements using a unique multi-tracer measurement system that has the capacity to measure not only the flow of outdoor air to each zone, but zone-to-zone transport. The paper will derive seven different metrics for the evaluation of air distribution. Measured data from two homes with different levels of natural infiltration will be used to evaluate these metrics for three different ASHRAE Standard 62.2 compliant ventilation systems. Such information can be used to determine the effectiveness of different systems so that appropriate adjustments can be made in residential ventilation standards such as ASHRAE Standard 62.2.

Sherman, Max; Sherman, Max H.; Walker, Iain S.

2008-05-01T23:59:59.000Z

314

Optimal decision making in ventilation control Andrew Kusiak*, Mingyang Li  

E-Print Network [OSTI]

based on the maximum occupancy of a facility. To provide air quality guidelines, ASHRAE Standard 90.1 [2] specifies the minimum ventilation rate of 2.5 l/s per person, while ASHRAE Standard 62-2004 [3] has been

Kusiak, Andrew

315

Hottest spot temperatures in ventilated dry type transformers  

SciTech Connect (OSTI)

The hottest spot temperature allowance to be used for the different insulation system temperature classes is a major unknown facing IEEE Working Groups developing standards and loading guides for ventilated dry type transformers. In 1944, the hottest spot temperature allowance for ventilated dry type transformers was established as 30 C for 80 C average winding temperature rise. Since 1944, insulation temperature classes have increased to 220 C but IEEE standards continue to use a constant 30 C hottest spot temperature allowance. IEC standards use a variable hottest spot temperature allowance from 5 to 30 C. Six full size test windings were manufactured with imbedded thermocouples and 133 test runs performed to obtain temperature rise data. The test data indicated that the hottest spot temperature allowance used in IEEE standards for ventilated dry type transformers above 500 kVA is too low. This is due to the large thermal gradient from the bottom to the top of the windings caused by natural convection air flow through the cooling ducts. A constant ratio of hottest spot winding temperature rise to average winding temperature rise should be used in product standards for all insulation temperature classes. A ratio of 1.5 is suggested for ventilated dry type transformers above 500 kVA. This would increase the hottest spot temperature allowance from 30 C to 60 C and decrease the permissible average winding temperature rise from 150 C to 120 C for the 220 C insulation temperature class.

Pierce, L.W. (General Electric Co., Rome, GA (United States))

1994-01-01T23:59:59.000Z

316

Energy saving strategies with personalized ventilation in tropics  

E-Print Network [OSTI]

office”. The equipment loads follow the schedules of theand the equipment heat load follow the profile shown inload was 10 W/m 2 and it follows the load shown in Table 1.

Schiavon, Stefano; Melikov, Arsen; Chandra Sekhar, Chandra Sekhar

2010-01-01T23:59:59.000Z

317

Energy-saving strategies with personalized ventilation in cold climates  

E-Print Network [OSTI]

a “light load office”. The loads follow the schedules of theheat load generated by occupants and equipment follows the

Schiavon, Stefano; Melikov, Arsen

2009-01-01T23:59:59.000Z

318

Summary of Workshop: Barriers to Energy Efficient Residential Ventilation  

E-Print Network [OSTI]

Presentation b y Steve Emmerich Presentation by Bob H e n dworkshop John Talbott Steve Emmerich Bob Hendron SrikanthREVIEW Presentation by Steve Emmerich A S H R A E S T A N D

Sherman, Max

2008-01-01T23:59:59.000Z

319

Energy saving strategies with personalized ventilation in tropics  

E-Print Network [OSTI]

is extracted by the fan coil units from the room in 1 year (a two-pipe overhead fan coil unit, is used to keep the roomto the room through the fan coil unit. There is no heating

Schiavon, Stefano; Melikov, Arsen; Chandra Sekhar, Chandra Sekhar

2010-01-01T23:59:59.000Z

320

Energy-saving strategies with personalized ventilation in cold climates  

E-Print Network [OSTI]

were modelled. Four-pipe fan coil units were used to controlthat is extracted by the fan coil units from the room in oneis supplied by the fan coil units to the room in one year (

Schiavon, Stefano; Melikov, Arsen

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Energy Saving Guidelines for Portland State University Heating and Ventilation  

E-Print Network [OSTI]

. FPM will then work to identify a long range solution to heating the space to an appropriate level. New construction and renovation will incorporate daylight sensing technology, allowing overhead

Caughman, John

322

Energy-saving strategies with personalized ventilation in cold climates  

E-Print Network [OSTI]

tropics, Proceedings of Healthy Buildings 2003, Singapore,Proceedings of Healthy Buildings 2000 Vol. 2, 2000, pp. 523-building. Proceeding of Healthy Building 2006. Vol. V, 2006,

Schiavon, Stefano; Melikov, Arsen

2009-01-01T23:59:59.000Z

323

Energy saving strategies with personalized ventilation in tropics  

E-Print Network [OSTI]

in: Proceedings of Healthy Buildings 2003, Singapore, 2, (in: Proceedings of Healthy Buildings 2000, vol. 2, 2000, pp.

Schiavon, Stefano; Melikov, Arsen; Chandra Sekhar, Chandra Sekhar

2010-01-01T23:59:59.000Z

324

ENERGY IMPACTS OF VARIOUS RESIDENTIAL MECHANICAL VENTILATION STRATEGIES  

E-Print Network [OSTI]

The Building America program has been working with home builders for more than a decade using a variety of strategies for bringing fresh air into the homes. Many of these strategies utilize the central air handler fan from the HVAC system...

Vieira, R.; Parker, D.; Lixing, G.; Wichers, M.

325

New Air Cleaning Strategies for Reduced Commercial Building Ventilation Energy  

E-Print Network [OSTI]

1) indoor pollutant source control, and 2) air cleaning.control is complicated by the large number and changing nature of indoor pollutant sources. Particle air

Sidheswaran, Meera

2010-01-01T23:59:59.000Z

326

ENERGY EFFICIENCY TECHNOLOGY ROADMAP VOLUME 5: HEATING, VENTILATION...  

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

demand for reduced low cost of utilities operation Control to respond to demand response events Connectivity with smart meter Leverage smart meter system Thermostat design...

327

Natural ventilation - A new method based on the Walton model applied to cross-ventilated buildings having two large external openings  

E-Print Network [OSTI]

In order to provide comfort in a low energy consumption building, it is preferable to use natural ventilation rather than HVAC systems. To achieve this, engineers need tools that predict the heat and mass transfers between the building's interior and exterior. This article presents a method implemented in some building software, and the results are compared to CFD. The results show that the knowledge model is not sufficiently well-described to identify all the physical phenomena and the relationships between them. A model is developed which introduces a new building-dependent coefficient allowing the use of Walton's model, as extended by Roldan to large external openings, and which better represents the turbulent phenomena near large external openings. The formulation of the mass flow rates is inversed to identify modeling problems. It appears that the discharge coefficient is not the only or best parameter to obtain an indoor static pressure compatible with CFD results, or to calculate more realistic mass fl...

Bastide, Alain; Boyer, Harry

2012-01-01T23:59:59.000Z

328

The Prevalence and Incremental Costs of Healthcare Associated Infections for Individuals Admitted for Potentially Preventable Hospitalization  

E-Print Network [OSTI]

costs for ACSC related preventive care, PPH, and the incremental cost of HAI. The Agency for Healthcare Research and Quality (AHRQ) Quality Indicator modules identified PPH using administrative inpatient discharge data and private insurer claims data...

Lorden, Andrea L

2014-07-28T23:59:59.000Z

329

Implementing Incremental Code Migration with XML Wolfgang Emmerich, Cecilia Mascolo \\Lambda and Anthony Finkelstein  

E-Print Network [OSTI]

Implementing Incremental Code Migration with XML Wolfgang Emmerich, Cecilia Mascolo \\Lambda fW.Emmerich|C.Mascolo|A.Finkelsteing@cs.ucl.ac.uk ABSTRACT We demonstrate how XML and related

Mascolo, Cecilia

330

Street as structure : an approach to the incremental development of Fort Point Channel  

E-Print Network [OSTI]

This work seeks to create an approach to the incremental development of a warehouse district in the City of Boston. The focus of the thesis is on the generation of rules and an implementation process that will organize the ...

Powers, Darleen D

1980-01-01T23:59:59.000Z

331

Intensive Care Med . Author manuscript A bench study of intensive-care-unit ventilators: new versus old and  

E-Print Network [OSTI]

: new versus old and turbine-based versus compressed gas-based ventilators Arnaud W. Thille 1 2 turbine-based ventilators and nine conventional servo-valve compressed-gas ventilators were tested using a two-compartment lung model. Results Three levels of effort were simulated. Each ventilator

Paris-Sud XI, Université de

332

Decommissioning of Active Ventilation Systems in a Nuclear R and D Facility to Prepare for Building Demolition (Whiteshell Laboratories Decommissioning Project, Canada) - 13073  

SciTech Connect (OSTI)

Whiteshell Laboratories (WL) is a nuclear research establishment owned by the Canadian government and operated by Atomic Energy of Canada Limited (AECL) since the early 1960's. WL is currently under a decommissioning license and the mandate is to remediate the nuclear legacy liabilities in a safe and cost effective manner. The WL Project is the first major nuclear decommissioning project in Canada. A major initiative underway is to decommission and demolish the main R and D Laboratory complex. The Building 300 R and D complex was constructed to accommodate laboratories and offices which were mainly used for research and development associated with organic-cooled reactors, nuclear fuel waste management, reactor safety, advanced fuel cycles and other applications of nuclear energy. Building 300 is a three storey structure of approximately 16,000 m{sup 2}. In order to proceed with building demolition, the contaminated systems inside the building have to be characterized, removed, and the waste managed. There is a significant focus on volume reduction of radioactive waste for the WL project. The active ventilation system is one of the significant contaminated systems in Building 300 that requires decommissioning and removal. The active ventilation system was designed to manage hazardous fumes and radioactivity from ventilation devices (e.g., fume hoods, snorkels and glove boxes) and to prevent the escape of airborne hazardous material outside of the laboratory boundary in the event of an upset condition. The system includes over 200 ventilation devices and 32 active exhaust fan units and high efficiency particulate air (HEPA) filters. The strategy to remove the ventilation system was to work from the laboratory end back to the fan/filter system. Each ventilation duct was radiologically characterized. Fogging was used to minimize loose contamination. Sections of the duct were removed by various cutting methods and bagged for temporary storage prior to disposition. Maintenance of building heating, ventilation and air conditioning (HVAC) balancing was critical to ensure proper airflow and worker safety. Approximately 103 m{sup 3} of equipment and materials were recovered or generated by the project. Low level waste accounted for approximately 37.4 m{sup 3}. Where possible, ducting was free released for metal recycling. Contaminated ducts were compacted into B-1000 containers and stored in a Shielded Modular Above-Ground Storage Facility (SMAGS) on the WL site awaiting final disposition. The project is divided into three significant phases, with Phases 1 and 2 completed. Lessons learned during the execution of Phases 1 and 2 have been incorporated into the current ventilation removal. (authors)

Wilcox, Brian; May, Doug; Howlett, Don; Bilinsky, Dennis [Atomic Energy of Canada Limited, Ara Mooradian Way, Pinawa, Manitoba (Canada)] [Atomic Energy of Canada Limited, Ara Mooradian Way, Pinawa, Manitoba (Canada)

2013-07-01T23:59:59.000Z

333

Dynamic Rotor Deformation and Vibration Monitoring Using a Non-Incremental Laser Doppler Distance Sensor  

SciTech Connect (OSTI)

Monitoring rotor deformations and vibrations dynamically is an important task for improving the safety and the lifetime as well as the energy efficiency of motors and turbo machines. However, due to the high rotor speed encountered in particular at turbo machines, this requires concurrently a high measurement rate and high accuracy, which can not be fulfilled by most commercially available sensors. To solve this problem, we developed a non-incremental laser Doppler distance sensor (LDDS), which is able to measure simultaneously the in-plane velocity and the out-of-plane position of moving rough solid objects with micrometer precision. In addition, this sensor concurrently offers a high temporal resolution in the microsecond range, because its position uncertainty is in principle independent of the object velocity in contrast to conventional distance sensors, which is a unique feature of the LDDS. Consequently, this novel sensor enables precise and dynamic in-process deformation and vibration measurements on rotating objects, such as turbo machine rotors, even at very high speed. In order to evidence the capability of the LDDS, measurements of rotor deformations (radial expansion), vibrations and wobbling motions are presented at up to 50,000 rpm rotor speed.

Pfister, Thorsten; Guenther, Philipp; Dreier, Florian; Czarske, Juergen [Technische Universitaet Dresden, Faculty of Electrical Engineering and Information Technology, Laboratory for Measurement and Testing Techniques, Helmholtzstrasse 18, D-01062 Dresden (Germany)

2010-05-28T23:59:59.000Z

334

Procedures and Standards for Residential Ventilation System  

E-Print Network [OSTI]

, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product deficiencies and optimizing the tradeoff between energy use and acceptable IAQ. Work funded by the California

335

Energy Consumption Analyses of Frequently-used HVAC System Types in High Performance Office Buildings.  

E-Print Network [OSTI]

??The high energy consumption of heating, ventilation and air-conditioning (HVAC) systems in commercial buildings is a hot topic. Office buildings, a typical building set of… (more)

Yan, Liusheng

2014-01-01T23:59:59.000Z

336

Impacts of increased outdoor air flow rates on annual HVAC energy costs in office environment.  

E-Print Network [OSTI]

??The use of different ventilation systems has an important impact on the energy cost of office buildings. This paper examines the relationship between heating and… (more)

Destrez, Adrien

2011-01-01T23:59:59.000Z

337

Energy Efficient Industrial Building Design  

E-Print Network [OSTI]

" or precooled air concept of ventilation, with a high temperature hot-water/chilled-water changeover piping system. Extensive energy recovery systems would be provided for production equipment and oil mist control would be by local captive systems, rather...

Holness, G. V. R.

1983-01-01T23:59:59.000Z

338

Retrofit Ventilation Strategies in Multifamily Buildings Webinar |  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartment of Energy fromComments onReplyofRetiring Procurement OfficialRetrofit

339

ASME AG-1 REQUIREMENT EXEMPTION JUSTIFICATIONS FOR VENTILATION SYSTEMS AT NUCLEAR WASTE STORAGE TANKS AT THE HANFORD SITE  

SciTech Connect (OSTI)

Washington State Department of Health regulations require compliance with the American Society of Mechanical Engineers (ASME) AG-1, ''Code on Nuclear Air and Gas Treatment,'' for all new radioactive air emission units. As a result, these requirements have been applied to systems that ventilate the radioactive waste storage tanks in the tank farm facilities on the U.S. Department of Energy's Hanford Site. ASME AG-1 is applied as a regulatory constraint to waste tank ventilation systems at the Hanford Site, even though the code was not intended for these systems. An assessment was performed to identify which requirements should be exempted for waste tank ventilation systems. The technical justifications for requirement exemptions were prepared and presented to the regulator. The technical justifications were documented so that select requirement exemptions for specific projects and systems can be sought through the regulator's permitting process. This paper presents the rationale for attempting to receive requirement exemption and presents examples of the technical justifications that form the basis for these exemptions.

GUSTAVSON, R.D.

2004-09-03T23:59:59.000Z

340

Dry Transfer Facility #1 - Ventilation Confinement Zoning Analysis  

SciTech Connect (OSTI)

The purpose of this analysis is to establish the preliminary Ventilation Confinement Zone (VCZ) for the Dry Transfer Facility (DTF). The results of this document is used to determine the air quantities for each VCZ that will eventually be reflected in the development of the Ventilation Flow Diagrams. The calculations contained in this document were developed by D and E/Mechanical-HVAC and are intended solely for the use of the D and E/Mechanical-HVAC department in its work regarding the HVAC system for the Dry Transfer Facility. Yucca Mountain Project personnel from the D and E/Mechanical-HVAC department should be consulted before use of the calculation for purposes other than those stated herein or used by individuals other than authorized personnel in D and E/Mechanical-HVAC department.

K.D. Draper

2005-03-23T23:59:59.000Z

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Availability Analysis of the Ventilation Stack CAM Interlock System  

E-Print Network [OSTI]

Ventilation Stack Continuous Air Monitor (CAM) Interlock System failure modes, failure frequencies, and system availability have been evaluated for the RPP. The evaluation concludes that CAM availability is as high as assumed in the safety analysis and that the current routine system surveillance is adequate to maintain this availability credited in the safety analysis, nor is such an arrangement predicted to significantly improve system availability.

Young, J

2000-01-01T23:59:59.000Z

342

Evaluation of Ventilation Strategies in New Construction Multifamily Buildings  

SciTech Connect (OSTI)

In multifamily buildings, particularly in the Northeast, exhaust ventilation strategies are the norm as a means of meeting both local exhaust and whole-unit mechanical ventilation rates. The issue of where the 'fresh' air is coming from is gaining significance as air-tightness standards for enclosures become more stringent, and the 'normal leakage paths through the building envelope' disappear. CARB researchers have found that the majority of high performance, new construction, multifamily housing in the Northeast use one of four general strategies for ventilation: continuous exhaust only with no designated supply or make-up air source, continuous exhaust with ducted make-up air to apartments, continuous exhaust with supply through a make-up air device integral to the unit HVAC, and continuous exhaust with supply through a passive inlet device, such as a trickle vent. Insufficient information is available to designers on how these various systems are best applied. Product performance data are based on laboratory tests, and the assumption is that products will perform similarly in the field. Proper application involves matching expected performance at expected building pressures, but there is no guarantee that those conditions will exist consistently in the finished building. This research effort, which included several weeks of building pressure monitoring, sought to provide field validation of system performance. The performance of four substantially different strategies for providing make-up air to apartments was evaluated.

Maxwell, S.; Berger, D.; Zuluaga, M.

2014-07-01T23:59:59.000Z

343

Predicting hottest spot temperatures in ventilated dry type transformer windings  

SciTech Connect (OSTI)

Test data indicates that hottest spot allowances used in IEEE standards for ventilated dry type transformers above 500 kVA are too low. A mathematical model to predict hottest spot temperature rises in ventilated dry type transformers was developed. Data from six layer type test windings and a 2500 kva prototype was used to refine the model. A correlation for the local heat transfer coefficient in the cooling ducts was developed. The model was used to study the effect of various parameters on the ratio of hottest spot to average winding temperature rise. The number of conductor layers, insulation thickness, and conductor strand size were found to have only a minor effect on the ratio. Winding height was found to be the main parameter influencing the ratio of hottest spot to average winding temperature rise. The study based on the mathematical model confirmed previous conclusions based on test data that the hottest spot allowances used in IEEE standards for ventilated dry type transformers above 500 kVA should be revised.

Pierce, L.W. (General Electric Co., Rome, GA (United States))

1994-04-01T23:59:59.000Z

344

Heating, Ventilation and Air Conditioning Efficiency  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana.ProgramJulietip sheetK-4In 2013 many autoThisTheDecember 29,

345

Microsoft Word - Ventilation System Sampling Results 1  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment SurfacesResource Program Preliminary Needs535:UFC 2300.004/2013April

346

Workers Adjust Ventilation in WIPP Underground  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste and MaterialsWenjun1 Table 1.14 SalesWorker Health &29, 2014

347

Development of an Integrated Residential Heating, Ventilation, Cooling, and Dehumidification System for Residences  

SciTech Connect (OSTI)

The Need and the Opportunity Codes such as ASHRAE 90.2 and IECC, and programs such as Energy Star and Builders Challenge, are causing new homes to be built to higher performance standards. As a result sensible cooling loads in new homes are going down, but indoor air quality prerogatives are causing ventilation rates and moisture loads to increase in humid climates. Conventional air conditioners are unable to provide the low sensible heat ratios that are needed to efficiently cool and dehumidify homes since dehumidification potential is strongly correlated with cooling system operating hours. The project team saw an opportunity to develop a system that is at least as effective as a conventional air conditioner plus dehumidifier, removes moisture without increasing the sensible load, reduces equipment cost by integrating components, and simplifies installation. Project Overview Prime contractor Davis Energy Group led a team in developing an Integrated Heating, Ventilation, Cooling, and Dehumidification (I-HVCD) system under the DOE SBIR program. Phase I and II SBIR project activities ran from July 2003 through December 2007. Tasks included: (1) Mechanical Design and Prototyping; (2) Controls Development; (3) Laboratory and Field Testing; and (4) Commercialization Activities Technology Description. Key components of the prototype I-HVCD system include an evaporator coil assembly, return and outdoor air damper, and controls. These are used in conjunction with conventional components that include a variable speed air handler or furnace, and a two-stage condensing unit. I-HVCD controls enable the system to operate in three distinct cooling modes to respond to indoor temperature and relative humidity (RH) levels. When sensible cooling loads are high, the system operates similar to a conventional system but varies supply airflow in response to indoor RH. In the second mode airflow is further reduced, and the reheat coil adds heat to the supply air. In the third mode, the reheat coil adds additional heat to maintain the supply air temperature close to the return air temperature (100% latent cooling). Project Outcomes Key Phase II objectives were to develop a pre-production version of the system and to demonstrate its performance in an actual house. The system was first tested in the laboratory and subsequently underwent field-testing at a new house in Gainesville, Florida. Field testing began in 2006 with monitoring of a 'conventional best practices' system that included a two stage air conditioner and Energy Star dehumidifier. In September 2007, the I-HVCD components were installed for testing. Both systems maintained uniform indoor temperatures, but indoor RH control was considerably better with the I-HVCD system. The daily variation from average indoor humidity conditions was less than 2% for the I-HVCD vs. 5-7% for the base case system. Data showed that the energy use of the two systems was comparable. Preliminary installed cost estimates suggest that production costs for the current I-HVCD integrated design would likely be lower than for competing systems that include a high efficiency air conditioner, dehumidifier, and fresh air ventilation system. Project Benefits This project verified that the I-HVCD refrigeration compacts are compact (for easy installation and retrofit) and can be installed with air conditioning equipment from a variety of manufacturers. Project results confirmed that the system can provide precise indoor temperature and RH control under a variety of climate conditions. The I-HVCD integrated approach offers numerous benefits including integrated control, easier installation, and reduced equipment maintenance needs. Work completed under this project represents a significant step towards product commercialization. Improved indoor RH control and fresh air ventilation are system attributes that will become increasingly important in the years ahead as building envelopes improve and sensible cooling loads continue to fall. Technologies like I-HVCD will be instrumental in meeting goals set by Building America

Hoeschele, M.A.; D.A. Springer

2008-06-18T23:59:59.000Z

348

Internal combuston engine having separated cylinder head oil drains and crankcase ventilation passages  

DOE Patents [OSTI]

An internal combustion engine includes separated oil drain-back and crankcase ventilation passages. The oil drain-back passages extend from the cylinder head to a position below the top level of oil in the engine's crankcase. The crankcase ventilation passages extend from passages formed in the main bearing bulkheads from positions above the oil level in the crankcase and ultimately through the cylinder head. Oil dams surrounding the uppermost portions of the crankcase ventilation passages prevent oil from running downwardly through the crankcase ventilation passages.

Boggs, David Lee (Bloomfield Hills, MI); Baraszu, Daniel James (Plymouth, MI); Foulkes, David Mark (Erfstadt, DE); Gomes, Enio Goyannes (Ann Arbor, MI)

1998-01-01T23:59:59.000Z

349

Internal combuston engine having separated cylinder head oil drains and crankcase ventilation passages  

DOE Patents [OSTI]

An internal combustion engine includes separated oil drain-back and crankcase ventilation passages. The oil drain-back passages extend from the cylinder head to a position below the top level of oil in the engine`s crankcase. The crankcase ventilation passages extend from passages formed in the main bearing bulkheads from positions above the oil level in the crankcase and ultimately through the cylinder head. Oil dams surrounding the uppermost portions of the crankcase ventilation passages prevent oil from running downwardly through the crankcase ventilation passages. 4 figs.

Boggs, D.L.; Baraszu, D.J.; Foulkes, D.M.; Gomes, E.G.

1998-12-29T23:59:59.000Z

350

THE IMPACT OF REDUCED VENTILATION ON INDOOR AIR QUALITY IN RESIDENTIAL BUILDINGS  

E-Print Network [OSTI]

carbon monoxide and nitrogen dioxide fron gas appliances;quality, infiltration, nitrogen dioxide, radon, ventilation.carbon monoxide (CO), nitrogen dioxide (N02)• formaldehyde (

Berk, James V.

2013-01-01T23:59:59.000Z

351

Room air stratification in combined chilled ceiling and displacement ventilation systems.  

E-Print Network [OSTI]

Environments. Proceedings of Indoor Air 2005: 10 thInternational Conference on Indoor Air Quality and Climate,displacement ventilation hybrid air conditioning system-

Schiavon, Stefano; Bauman, Fred; Tully, Brad; Rimmer, Julian

2012-01-01T23:59:59.000Z

352

Field Test of Room-to-Room Distribution of Outside Air with Two Residential Ventilation Systems  

SciTech Connect (OSTI)

Uniform distribution of outside air is one way to ensure that residential dilution ventilation systems will provide a known amount of fresh air to all rooms.

Hendron, R.; Anderson, R.; Barley, D.; Rudd, A.; Townsend, A.; Hancock, E.

2008-08-01T23:59:59.000Z

353

Developing evidence-based prescriptive ventilation rate standards for commercial buildings in California: a proposed framework  

E-Print Network [OSTI]

quality survey. In: Healthy Buildings 2006. Lisbon,In: Proceedings of Healthy Buildings 2006. Lisbon, Portugal:as ventilation varies. In: Healthy Buildings 2012. Brisbane,

Mendell, Mark J.

2014-01-01T23:59:59.000Z

354

Kenneth J. Turner. Incremental Requirements Specification with LOTOS. Requirements Engineering Journal, 2:132-151, Springer-Verlag, London, UK,  

E-Print Network [OSTI]

Kenneth J. Turner. Incremental Requirements Specification with LOTOS. Requirements Engineering with LOTOS Kenneth J. Turner Department of Computing Science and Mathematics University of Stirling, Stirling

Turner, Ken

355

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

SciTech Connect (OSTI)

This paper presents a freely available Modelica library for building heating, ventilation and air conditioning systems. The library is based on the Modelica.Fluid library. It has been developed to support research and development of integrated building energy and control systems. The primary applications are controls design, energy analysis and model-based operation. The library contains dynamic and steady-state component models that are applicable for analyzing fast transients when designing control algorithms and for conducting annual simulations when assessing energy performance. For most models, dimensional analysis is used to compute the performance for operating points that differ from nominal conditions. This allows parameterizing models in the absence of detailed geometrical information which is often impractical to obtain during the conceptual design phase of building systems. In the first part of this paper, the library architecture and the main classes are described. In the second part, an example is presented in which we implemented a model of a hydronic heating system with thermostatic radiator valves and thermal energy storage.

Wetter, Michael

2009-06-17T23:59:59.000Z

356

Incremental Cluster-Based Retrieval using Compressed Cluster-Skipping Inverted Files  

E-Print Network [OSTI]

Incremental Cluster-Based Retrieval using Compressed Cluster-Skipping Inverted Files ISMAIL SENGOR ________________________________________________________________________ We propose a unique cluster-based retrieval (CBR) strategy using a new cluster-skipping inverted file for improving query processing efficiency. The new inverted file incorporates cluster membership and centroid

Can, Fazli

357

Incremental Cluster-Based Retrieval Using Compressed Cluster-Skipping Inverted Files  

E-Print Network [OSTI]

15 Incremental Cluster-Based Retrieval Using Compressed Cluster-Skipping Inverted Files ISMAIL cluster-based retrieval (CBR) strategy using a new cluster-skipping inverted file for improving query processing efficiency. The new inverted file incorporates cluster member- ship and centroid information along

Ulusoy, �zgür

358

Incremental Development for Automotive Software in AutoMoDe Andreas Bauer1  

E-Print Network [OSTI]

Incremental Development for Automotive Software in AutoMoDe Andreas Bauer1 Jan Romberg1 Bernhard Validas AG 3 ETAS GmbH 4 PMSF IT Consulting 5 Robert Bosch GmbH Abstract Automotive software development. To facilitate the design and evolution of heterogeneous automotive software, suitable views for each level

Braun, Peter

359

Evolving Fuzzy Classifiers: Application to Incremental Learning of Handwritten Gesture Recognition Systems  

E-Print Network [OSTI]

Evolving Fuzzy Classifiers: Application to Incremental Learning of Handwritten Gesture Recognition pattern recognition task. The main problem in classification is to induce a classifier from a set of data.cheriet@etsmtl.ca Abstract--In this paper, we present a new method to design customizable self-evolving fuzzy rule

Boyer, Edmond

360

Ordering points for incremental TIN construction from James J. Little and Ping Shi  

E-Print Network [OSTI]

Ordering points for incremental TIN construction from DEMs James J. Little and Ping Shi Department approximations to terrain surfaces (TINs) from dense digital elevation models(DEMs) adds points to an initial in the current TIN, the worst fitting point, in terms of vertical distance, is selected. The order of insertion

Little, Jim

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Optimizing Ackermann's Function by Incrementalization # Yanhong A. Liu Scott D. Stoller  

E-Print Network [OSTI]

Optimizing Ackermann's Function by Incrementalization # Yanhong A. Liu Scott D. Stoller Computer of Programs]: Logics and Mean­ ings of Programs---partial evaluation; I.2.2 [Artificial In­ telligence. INTRODUCTION General and systematic methods for transforming high­ level programs into e#cient implementations

Liu, Yanhong Annie

362

Incremental Integration Tools for Chemical Engineering: An Industrial Application of Triple Graph  

E-Print Network [OSTI]

and the components of the chemical plant, simulation models for steady-state and dynamic simulations, etc. Design representations of a chemical plant have to be kept consistent with each other. Incremental integration tools). In chemical engineering design, a chemical plant is described from different per- spectives by a set

Westfechtel, Bernhard

363

AN OPEN-CIRCUIT-VOLTAGE MODEL OF LITHIUM-ION BATTERIES FOR EFFECTIVE INCREMENTAL CAPACITY ANALYSIS  

E-Print Network [OSTI]

AN OPEN-CIRCUIT-VOLTAGE MODEL OF LITHIUM-ION BATTERIES FOR EFFECTIVE INCREMENTAL CAPACITY ANALYSIS electrochemical properties and aging status. INTRODUCTION With the widespread use of lithium-ion batteries the com- plex battery physical behavior during the lithium-ion intercalac- tion/deintercalation process

Peng, Huei

364

Incremental Policy Generation for Finite-Horizon DEC-POMDPs Chistopher Amato  

E-Print Network [OSTI]

of these algorithms use dy- namic programming to build up a set of possible policies from the last step until the first. This is accomplished by "backing up" the possible policies at each step and prun- ing thoseIncremental Policy Generation for Finite-Horizon DEC-POMDPs Chistopher Amato Department of Computer

Zilberstein, Shlomo

365

A Lock-Free, Concurrent, and Incremental Stack Scanning for Garbage Collectors  

E-Print Network [OSTI]

A Lock-Free, Concurrent, and Incremental Stack Scanning for Garbage Collectors Gabriel Kliot Bjarne.Steensgaard@microsoft.com Abstract Two major efficiency parameters for garbage collectors collectors with as short as possible pause times. Pause lengths have decreased significantly during the years

Petrank, Erez

366

Ajax-based Report Pages as Incrementally Rendered UC San Diego  

E-Print Network [OSTI]

Ajax-based Report Pages as Incrementally Rendered Views Yupeng Fu UC San Diego yupeng/SQL for the database. The FORWARD framework simplifies the devel- opment of Ajax pages by treating them as rendered to the view and render the data in the browser. Such a declarative approach leads to significantly less code

Kowalczykowski, Stephen C.

367

MYOWNLIFE: INCREMENTAL SUMMARIZATION OF A PERSONAL IMAGE COLLECTION ON MOBILE DEVICES  

E-Print Network [OSTI]

MYOWNLIFE: INCREMENTAL SUMMARIZATION OF A PERSONAL IMAGE COLLECTION ON MOBILE DEVICES Antoine the browsing task on a mobile device, a pertinent device to share/browse personal images due to its continuous image collection, to provide a structure adapted to inter- face constraints on mobile devices

Paris-Sud XI, Université de

368

Economic Analysis and Optimization of Exterior Insulation Requirements for Ventilated Buildings at Power Generation Facilities with High Internal Heat Gain  

E-Print Network [OSTI]

Industrial buildings require a large amount of heating and ventilation equipment to maintain the indoor environment within acceptable levels for personnel protection and equipment protection. The required heating and ventilation equipment...

Hughes, Douglas E.

2010-12-17T23:59:59.000Z

369

Infiltration Effects on Residential Pollutant Concentrations for Continuous and Intermittent Mechanical Ventilation Approaches  

SciTech Connect (OSTI)

The prevailing residential ventilation standard in North America, American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) Standard 62.2, specifies volumetric airflow requirements as a function of the overall size of the home and the number of bedrooms, assumes a fixed, minimal amount of infiltration, and requires mechanical ventilation to achieve the remainder. The standard allows for infiltration credits and intermittent ventilation patterns that can be shown to provide comparable performance. Whole-house ventilation methods have a substantial effect on time-varying indoor pollutant concentrations. If alternatives specified by Standard 62.2, such as intermittent ventilation, are used, short-term pollutant concentrations could exceed acute health standards even if chronic health standards are met.The authors present a methodology for comparing ASHRAE- and non-ASHRAE-specified ventilation scenarios on relative indoor pollutant concentrations. We use numerical modeling to compare the maximum time-averaged concentrations for acute exposure relevant (1-hour, 8-hour, 24-hour ) and chronic exposure relevant (1-year) time periods for four different ventilation scenarios in six climates with a range of normalized leakage values. The results suggest that long-term concentrations are the most important metric for assessing the effectiveness of whole-house ventilation systems in meeting exposure standards and that, if chronic health exposure standards are met, acute standards will also be met.

Sherman, Max; Logue, Jennifer; Singer, Brett

2010-06-01T23:59:59.000Z

370

10/15/03 LBNL-53800 Residential Ventilation Standards Scoping Study  

E-Print Network [OSTI]

10/15/03 LBNL-53800 Residential Ventilation Standards Scoping Study T-01 Lawrence Berkeley National Laboratory Report Number: LBNL-53800 OVERVIEW This document presents contract no. DE-AC03-76SF00098. #12;VENTILATIONS STANDARDS SCOPING STUDY PAGE LBNL-53800 2 TABLE

371

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

E-Print Network [OSTI]

Modelica Library for Building Heating, Ventilation and Air-Conditioning Systems Michael Wetter available Modelica library for building heating, ventilation and air conditioning systems. The library is based on the Modelica.Fluid library. It has been developed to support research and development

372

A case study of boundary layer ventilation by convection and coastal processes  

E-Print Network [OSTI]

of the pollution in the atmosphere originates from emissions in the atmospheric boundary layer, the region; published 12 September 2007. [1] It is often assumed that ventilation of the atmospheric boundary layer responsible for ventilation of the atmospheric boundary layer during a nonfrontal day that occurred on 9 May

Dacre, Helen

373

Usability Heuristics and Qualitative Indicators for the Usability Evaluation of Touch Screen Ventilator Systems  

E-Print Network [OSTI]

system provides respiratory support to critically ill patients in the Intensive Care Unit. Increasing, multi-parameter monitoring system, defibrillator, ECG analyzer, etc. Mechanical age medical equipments evaluation. A ventilator system gives respiratory support to critically ill patients [5]. Ventilators can

Boyer, Edmond

374

A web based CBR system for heating ventilation and air conditioning systems sales support  

E-Print Network [OSTI]

A web based CBR system for heating ventilation and air conditioning systems sales support D describes the implementation of a case-based reasoning (CBR) system to support heating ventilation and air conditioning systems (HVAC) sales staff operating in remote locations. The system operates on the world wide

Watson, Ian

375

Created: July, 2014 Laboratory Safety Design Guide Section 3 Laboratory Ventilation  

E-Print Network [OSTI]

Created: July, 2014 Laboratory Safety Design Guide Section 3 ­ Laboratory Ventilation 3-1 Section 3 ...................................................................................3-5 #12;Created: July, 2014 Laboratory Safety Design Guide Section 3 ­ Laboratory Ventilation 3-2 A without compromising safety or system integrity. The following should be included unless alternate design

Queitsch, Christine

376

Building America Case Study: Selecting Ventilation Systems for Existing Homes (Fact Sheet)  

SciTech Connect (OSTI)

This document addresses adding -or improving - mechanical ventilation systems to existing homes. The purpose of ventilation is to remove contaminants from homes, and this report discusses where, when, and how much ventilation is appropriate in a home, including some discussion of relevant codes and standards. Advantages, disadvantages, and approximate costs of various system types are presented along with general guidelines for implementing the systems in homes. CARB intends for this document to be useful to decision makers and contractors implementing ventilation systems in homes. Choosing the "best" system is not always straightforward; selecting a system involves balancing performance, efficiency, cost, required maintenance, and several other factors. It is the intent of this document to assist contractors in making more informed decisions when selecting systems. Ventilation is an integral part of a high-performance home. With more air-sealed envelopes, a mechanical means of removing contaminants is critical for indoor environmental quality and building durability.

Not Available

2014-12-01T23:59:59.000Z

377

Reducing Mortality from Terrorist Releases of Chemical and Biological Agents: I. Filtration for Ventilation Systems in Commercial Building  

E-Print Network [OSTI]

R.J. : Effect of ventilation rate in a healthy building.IAQ '91: Healthy Buildings, American Society of Heating,

Thatcher, Tracy L.

2011-01-01T23:59:59.000Z

378

Off-line compensation of the tool path deviations on robotic machining: Application to Incremental Sheet Forming  

E-Print Network [OSTI]

Off-line compensation of the tool path deviations on robotic machining: Application to Incremental of industrial robots during an incremental sheet forming task. For that purpose, a robust and systematic method in a context of prototyping applications. Keywords: robot machining, elastic modeling, robot calibration

Paris-Sud XI, Université de

379

Full-scale study of a building equipped with phase change material wallboards and a multi-layer rack latent heat thermal energy store system  

E-Print Network [OSTI]

-layer rack latent heat thermal energy store system Julien Borderon1 , Joseph Virgone2 , Richard Cantin1 installed as wallboard and as latent heat thermal energy storage system coupled with the ventilation system for the ventilation air is efficient. INTRODUCTION Nowadays, thermal energy storage systems are one way for reducing

Paris-Sud XI, Université de

380

Optimization of Occupancy Based Demand Controlled Ventilation in Residences  

E-Print Network [OSTI]

Efficiency and Renewable Energy, Building TechnologiesEfficiency and Renewable Energy, Building Technologies

Mortensen, Dorthe K.

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Pre-Stressed Viscoelastic Composites: Effective Incremental Moduli and Band-Gap Tuning  

SciTech Connect (OSTI)

We study viscoelastic wave propagation along pre-stressed nonlinear elastic composite bars. In the pre-stressed state we derive explicit forms for the effective incremental storage and loss moduli with dependence on the pre-stress. We also derive a dispersion relation for the effective wavenumber in the case of arbitrary frequency, hence permitting a study of viscoelastic band-gap tuning via pre-stress.

Parnell, William J. [School of Mathematics, Alan Turing Building, University of Manchester, Manchester, M13 9PL (United Kingdom)

2010-09-30T23:59:59.000Z

382

TECHNICAL BASIS FOR VENTILATION REQUIREMENTS IN TANK FARMS OPERATING SPECIFICATIONS DOCUMENTS  

SciTech Connect (OSTI)

This report provides the technical basis for high efficiency particulate air filter (HEPA) for Hanford tank farm ventilation systems (sometimes known as heating, ventilation and air conditioning [HVAC]) to support limits defined in Process Engineering Operating Specification Documents (OSDs). This technical basis included a review of older technical basis and provides clarifications, as necessary, to technical basis limit revisions or justification. This document provides an updated technical basis for tank farm ventilation systems related to Operation Specification Documents (OSDs) for double-shell tanks (DSTs), single-shell tanks (SSTs), double-contained receiver tanks (DCRTs), catch tanks, and various other miscellaneous facilities.

BERGLIN, E J

2003-06-23T23:59:59.000Z

383

Recommendations for the analysis and design of naturally ventilated buildings in urban areas  

E-Print Network [OSTI]

The motivation behind this work was to obtain a better understanding of how a building's natural ventilation potential is affected by the complexities introduced by the urban environment. To this end, we have derived in ...

Truong, Phan Hue

2012-01-01T23:59:59.000Z

384

Control of the microclimate around the head with opposing jet local ventilation  

E-Print Network [OSTI]

ventilation application. Healthy Buildings 2003, Singapore.21 (1996) 427-436. Healthy Buildings 2009, September 13-17,distance is 1.20m. Healthy Buildings 2009, September 13-17,

Liu, Chonghui; Higuchi, Hiroshi; Arens, Edward; Zhang, Hui Ph.D

2009-01-01T23:59:59.000Z

385

The Potential for Wind Induced Ventilation to Meet Occupant Comfort Conditions  

E-Print Network [OSTI]

This paper describes a simple graphic tool that enables a building designer to evaluate the potential for wind induced ventilation cooling in several climate zones. Long term weather data were analyzed to determine the conditions for which available...

Byrne, S. J.; Huang, Y. J.; Ritschard, R. L.; Foley, D. M.

1985-01-01T23:59:59.000Z

386

Alternatives generation and analysis for double-shell tank primary ventilation systems emissions control and monitoring  

SciTech Connect (OSTI)

This AGA addresses the question: ''What equipment upgrades, operational changes, and/or other actions are required relative to the DST tanks farms' ventilation systems to support retrieval, staging (including feed sampling), and delivery of tank waste to the Phase I private contractor?'' Issues and options for the various components within the ventilation subsystem affect each other. Recommended design requirements are presented and the preferred alternatives are detailed.

SEDERBURG, J.P.

1999-09-30T23:59:59.000Z

387

OBSERVE: Occupancy-Based System for Efficient Reduction of HVAC Energy  

E-Print Network [OSTI]

OBSERVE: Occupancy-Based System for Efficient Reduction of HVAC Energy Varick L. Erickson, Miguel Á & control General Terms Algorithms, Machine Learning, Measurement Keywords Occupancy, HVAC, Ventilation for heating, ventilation, and air-conditioning (HVAC) systems[2]. Studies suggest that 15% to 25% of HVAC

Carreira-Perpiñán, Miguel Á.

388

Solar energy dehumidification experiment on the Citicorp Center building : final report  

E-Print Network [OSTI]

The technical and economic feasibility of using solar energy to reduce conventional energy consumption of a large urban commercial building were studied in depth. Specifically, solar assisted dehumidification of ventillation ...

Unknown author

389

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

Broader source: Energy.gov [DOE]

The Home Energy SavingsCentral Program offers customers rebates of up to $1,000 on energy efficient equipment and measures for residential gas customers who upgrade heating, cooling or ventilation...

390

Methodology for the Determination of Potential Energy Savings in Commercial Buildings  

E-Print Network [OSTI]

This paper describes a methodology to determine potential energy savings of buildings with limited information. This methodology is based upon the simplified energy analysis procedure of heating, ventilation and air condition (HVAC) systems...

Baltazar-Cervantes, J. C.; Claridge, D. E.

2007-01-01T23:59:59.000Z

391

Love Your Home and It'll Love You Back | Department of Energy  

Office of Environmental Management (EM)

to that standard. Since I have to replace, it I might as well pick an ENERGY STAR ventilation fan that will use less energy and provide better performance with less noise It...

392

BUI.LDING ENERGY 1987 Edition  

E-Print Network [OSTI]

for Offices, Retail and Wholesale Stores Section Title PaaeDesign Requirements ...·.·.......·... 55Energy Building Energy Efficiency Standards Energy Conservation Standards for New Offices, Retail and Wholesale ...·...··...... - Retail and Wholesale Stores . Ventilation Requirements .... 81 85 106 122 138 154 Energy Conservation

393

Energy efficiency buildings program, FY 1980  

SciTech Connect (OSTI)

A separate abstract was prepared on research progress in each group at LBL in the energy efficient buildings program. Two separate abstracts were prepared for the Windows and Lighting Program. Abstracts prepared on other programs are: Energy Performance of Buildings; Building Ventilation and Indoor Air Quality Program; DOE-21 Building Energy Analysis; and Building Energy Data Compilation, Analysis, and Demonstration. (MCW)

Not Available

1981-05-01T23:59:59.000Z

394

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

395

Developing evidence-based prescriptive ventilation rate standards for commercial buildings in California: a proposed framework  

SciTech Connect (OSTI)

Background - The goal of this project, with a focus on commercial buildings in California, was to develop a new framework for evidence-based minimum ventilation rate (MVR) standards that protect occupants in buildings while also considering energy use and cost. This was motivated by research findings suggesting that current prescriptive MVRs in commercial buildings do not provide occupants with fully safe and satisfactory indoor environments. Methods - The project began with a broad review in several areas ? the diverse strategies now used for standards or guidelines for MVRs or for environmental contaminant exposures, current knowledge about adverse human effects associated with VRs, and current knowledge about contaminants in commercial buildings, including their their presence, their adverse human effects, and their relationships with VRs. Based on a synthesis of the reviewed information, new principles and approaches are proposed for setting evidence-based VRs standards for commercial buildings, considering a range of human effects including health, performance, and acceptability of air. Results ? A review and evaluation is first presented of current approaches to setting prescriptive building ventilation standards and setting acceptable limits for human contaminant exposures in outdoor air and occupational settings. Recent research on approaches to setting acceptable levels of environmental exposures in evidence-based MVR standards is also described. From a synthesis and critique of these materials, a set of principles for setting MVRs is presented, along with an example approach based on these principles. The approach combines two sequential strategies. In a first step, an acceptable threshold is set for each adverse outcome that has a demonstrated relationship to VRs, as an increase from a (low) outcome level at a high reference ventilation rate (RVR, the VR needed to attain the best achievable levels of the adverse outcome); MVRs required to meet each specific outcome threshold are estimated; and the highest of these MVRs, which would then meet all outcome thresholds, is selected as the target MVR. In a second step, implemented only if the target MVR from step 1 is judged impractically high, costs and benefits are estimated and this information is used in a risk management process. Four human outcomes with substantial quantitative evidence of relationships to VRs are identified for initial consideration in setting MVR standards. These are: building-related symptoms (sometimes called sick building syndrome symptoms), poor perceived indoor air quality, and diminished work performance, all with data relating them directly to VRs; and cancer and non-cancer chronic outcomes, related indirectly to VRs through specific VR-influenced indoor contaminants. In an application of step 1 for offices using a set of example outcome thresholds, a target MVR of 9 L/s (19 cfm) per person was needed. Because this target MVR was close to MVRs in current standards, use of a cost/benefit process seemed unnecessary. Selection of more stringent thresholds for one or more human outcomes, however, could raise the target MVR to 14 L/s (30 cfm) per person or higher, triggering the step 2 risk management process. Consideration of outdoor air pollutant effects would add further complexity to the framework. For balancing the objective and subjective factors involved in setting MVRs in a cost-benefit process, it is suggested that a diverse group of stakeholders make the determination after assembling as much quantitative data as possible.

Mendell, Mark J.; Fisk, William J.

2014-02-01T23:59:59.000Z

396

Theoretical Minimum Energy Use of a Building HVAC System  

E-Print Network [OSTI]

This paper investigates the theoretical minimum energy use required by the HVAC system in a particular code compliant office building. This limit might be viewed as the "Carnot Efficiency" for HVAC system. It assumes that all ventilation and air...

Tanskyi, O.

2011-01-01T23:59:59.000Z

397

Improving energy efficiency in a pharmaceutical manufacturing environment -- production facility  

E-Print Network [OSTI]

The manufacturing plant of a pharmaceutical company in Singapore had low energy efficiency in both its office buildings and production facilities. Heating, Ventilation and Air-Conditioning (HVAC) system was identified to ...

Zhang, Endong, M. Eng. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

398

California Energy Commission September 14, 2012  

E-Print Network [OSTI]

Forecast: Estimates of Incremental Uncommitted Energy Savings Relative to the California Energy Demand Forecast (CED 2011), the demand forecast adopted by the California Energy Commission (Energy Commission, and Kate Sullivan. 2012. California Energy Demand Forecast 20122022 (Volume 1 and Volume 2) California

399

How to Fit simply Soil Mechanics Behaviour with Incremental Modelling and to Describe Drained Cyclic Behaviours  

E-Print Network [OSTI]

It has been proposed recently a new incremental modelling to describe the mechanics of soil. It is based on two parameters called the pseudo Young modulus E=1/Co and the pseudo Poisson coefficient n, which both evolve during compression. Evolution of n is known since it shall fit the Rowe's law of dilatancy, but Co has to be evaluated from experiment. In this paper we proposed a way to evaluate the Co variation from other mechanical modelling. The way cyclic behaviour of drained sample can be modelled is also described.

P. Evesque

2005-07-04T23:59:59.000Z

400

IMPROVING ENERGY EFFICIENCY AND REDUCING COSTS IN THE DRINKING WATER SUPPLY INDUSTRY: An ENERGY STAR Resource Guide for Energy and Plant Managers  

E-Print Network [OSTI]

Best Practices. Case Study–The Challenge: Improving Ventilation System Energy EfficiencyEnergy Efficiency & Renewable Energy (EERE), Office of Industrial Technologies. 2000. Best PracticesEnergy Efficiency Actions for Plant Personnel96   iii Appendix D: Assessing Energy Management Systems for Best Practices .

Brown, Moya Melody, Camilla Dunham Whitehead, Rich

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Summer Infiltration/Ventilation Test Results from the FRTF Laboratory  

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

high-quality empirical data suitable for energy simulation verification. FLORIDA SOLAR ENERGY CENTER - A Research Institute of the University of Central Florida * Two identical...

402

Measurement of the Sunyaev-Zel'dovich Increment in Massive Galaxy Clusters  

E-Print Network [OSTI]

We have detected the Sunyaev-Zel'dovich (SZ) increment at 850 microns in two galaxy clusters (Cl 0016+16 and MS 1054.4-0321) using SCUBA (Sub-millimetre Common User Bolometer Array) on the James Clerk Maxwell Telescope. Fits to the isothermal \\beta model yield a central Compton y parameter of (2.2 \\pm 0.7) x 10^{-4} and a central 850 micron flux of \\Delta I_{0} = 2.2 \\pm 0.7 mJy/beam in Cl 0016. This can be combined with decrement measurements to infer y = (2.38 \\pm_{0.34}^{0.36}) x 10^{-4} and v_{pec} = 400 \\pm_{1400}^{1900} km/s. In MS 1054 we find a peak 850 micron flux of \\Delta I_{0} = 2.0 \\pm 1.0 mJy/beam and y = (2.0 \\pm 1.0) x 10^{-4}. To be successful such measurements require large chop throws and non-standard data analysis techniques. In particular, the 450 micron data are used to remove atmospheric variations in the 850 micron data. An explicit annular model is fit to the SCUBA difference data in order to extract the radial profile, and separately fit to the model differences to minimize the effect of correlations induced by our scanning strategy. We have demonstrated that with sufficient care, SCUBA can be used to measure the SZ increment in massive, compact galaxy clusters.

Michael Zemcov; Mark Halpern; Colin Borys; Scott Chapman; Wayne Holland; Elena Pierpaoli; Douglas Scott

2003-10-03T23:59:59.000Z

403

Maximizing Thermal Efficiency and Optimizing Energy Management (Fact Sheet)  

SciTech Connect (OSTI)

Researchers at the Thermal Test Facility (TTF) on the campus of the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) in Golden, Colorado, are addressing maximizing thermal efficiency and optimizing energy management through analysis of efficient heating, ventilating, and air conditioning (HVAC) strategies, automated home energy management (AHEM), and energy storage systems.

Not Available

2012-03-01T23:59:59.000Z

404

Worker performance and ventilation in a call center: Analyses of work performance data for registered nurses  

SciTech Connect (OSTI)

We investigated the relationship between ventilation rates and individual work performance in a call center, and controlled for other factors of the indoor environment. We randomized the position of the outdoor air control dampers, and measured ventilation rate, differential (indoor minus outdoor) carbon dioxide ({Delta}CO{sub 2}) concentration, supply air velocity, temperature, humidity, occupant density, degree of under-staffing, shift length, time of day, and time required to complete two different work performance tasks (talking with clients and post-talk wrap-up to process information). {Delta}CO{sub 2} concentrations ranged from 13 to 611 ppm. We used multi-variable regression to model the association between the predictors and the responses. We found that agents performed talk tasks fastest when the ventilation rate was highest, but that the relationship between talk performance and ventilation was not strong or monotonic. We did not find a statistically significant association between wrap-up performance and ventilation rate. Agents were slower at the wrap-up task when the temperature was high (>25.4 C). Agents were slower at wrap-up during long shifts and when the call center was under-staffed.

Federspiel, C.C.; Fisk, W.J.; Price, P.N.; Liu, G.; Faulkner, D.; Dibartolomeo, D.L.; Sullivan, D.P.; Lahiff, M.

2004-05-01T23:59:59.000Z

405

Energy Impacts of Envelope Tightening and Mechanical  

E-Print Network [OSTI]

1 Energy Impacts of Envelope Tightening and Mechanical Ventilation for the U.S. Residential Sector Energy Commission through Contract 500-08-061. #12;3 ABSTRACT Effective residential envelope air sealing reduces infiltration and associated energy costs for thermal conditioning, yet often creates a need

406

Experimental Evaluation of Ventilation Systems in a Single-Family Dwelling  

E-Print Network [OSTI]

The French regulation on residential building ventilation relies on an overall and continuous air renewal. The fresh air should enter the building through the "habitable rooms" while the polluted air is extracted in the service rooms. In this way, internal air is drained from the lowest polluted rooms to the highest polluted ones. However, internal pressure equilibrium and air movements in buildings result from the combined effects ventilation system and parameters such as wind, temperature difference or doors opening. This paper aims to analyse the influence of these parameters on pollutant transfer within buildings. In so doing, experiments are carried out using tracer gas release for representing pollution sources in an experimental house. Mechanical exhaust, balanced and natural ventilation systems are thus tested. Results show the followings: - For all cases, internal doors' opening causes the most important pollutant spread. - When doors are closed, the best performances are obtained with balanced venti...

Koffi, Juslin; Akoua, Jean-Jacques

2010-01-01T23:59:59.000Z

407

Particle deposition in ventilation ducts: Connectors, bends anddeveloping flow  

SciTech Connect (OSTI)

In ventilation duct flow the turbulent flow profile is commonly disturbed or not fully developed and these conditions are likely to influence particle deposition to duct surfaces. Particle deposition rates at eight S-connectors, in two 90{sup o} duct bends and in two ducts where the turbulent flow profile was not fully developed were measured in a laboratory duct system with both galvanized steel and internally insulated ducts with hydraulic diameters of 15.2 cm. In the steel duct system, experiments with nominal particle diameters of 1, 3, 5, 9 and 16 {micro}m were conducted at each of three nominal air speeds: 2.2, 5.3 and 9.0 m/s. In the insulated duct system, deposition of particles with nominal diameters of 1, 3, 5, 8 and 13 {micro}m was measured at nominal air speeds of 2.2, 5.3 and 8.8 m/s. Fluorescent techniques were used to directly measure the deposition velocities of monodisperse fluorescent particles to duct surfaces. Deposition at S-connectors, in bends and in straight ducts with developing turbulence was often greater than deposition in straight ducts with fully developed turbulence for equal particle sizes, air speeds and duct surface orientations. Deposition rates at all locations were found to increase with an increase in particle size or air speed. High deposition rates at S-connectors resulted from impaction and these rates were nearly independent of the orientation of the S-connector. Deposition rates in the two 90{sup o} bends differed by more than an order of magnitude in some cases, probably because of the difference in turbulence conditions at the bend inlets. In straight steel ducts where the turbulent flow profile was developing, the deposition enhancement relative to fully developed turbulence generally increased with air speed and decreased with downstream distance from the duct inlet. This enhancement was greater at the duct ceiling and wall than at the duct floor. In insulated ducts, deposition enhancement was less pronounced overall than in steel ducts. Trends that were observed in steel ducts were present, but weaker, in insulated ducts.

Sippola, Mark R.; Nazaroff, William W.

2004-03-01T23:59:59.000Z

408

ADMINISTRATIVE AND ENGINEERING CONTROLS FOR THE OPERATION OF VENTILATION SYSTEMS FOR UNDERGROUND RADIOACTIVE WASTE STORAGE TANKS  

SciTech Connect (OSTI)

Liquid radioactive wastes from the Savannah River Site are stored in large underground carbon steel tanks. The majority of the waste is confined in double shell tanks, which have a primary shell, where the waste is stored, and a secondary shell, which creates an annular region between the two shells, that provides secondary containment and leak detection capabilities should leakage from the primary shell occur. Each of the DST is equipped with a purge ventilation system for the interior of the primary shell and annulus ventilation system for the secondary containment. Administrative flammability controls require continuous ventilation to remove hydrogen gas and other vapors from the waste tanks while preventing the release of radionuclides to the atmosphere. Should a leak from the primary to the annulus occur, the annulus ventilation would also serve this purpose. The functionality of the annulus ventilation is necessary to preserve the structural integrity of the primary shell and the secondary. An administrative corrosion control program is in place to ensure integrity of the tank. Given the critical functions of the purge and annulus ventilation systems, engineering controls are also necessary to ensure that the systems remain robust. The system consists of components that are constructed of metal (e.g., steel, stainless steel, aluminum, copper, etc.) and/or polymeric (polypropylene, polyethylene, silicone, polyurethane, etc.) materials. The performance of these materials in anticipated service environments (e.g., normal waste storage, waste removal, etc.) was evaluated. The most aggressive vapor space environment occurs during chemical cleaning of the residual heels by utilizing oxalic acid. The presence of NO{sub x} and mercury in the vapors generated from the process could potentially accelerate the degradation of aluminum, carbon steel, and copper. Once identified, the most susceptible materials were either replaced and/or plans for discontinuing operations are executed.

Wiersma, B.; Hansen, A.

2013-11-13T23:59:59.000Z

409

Software Verification & Validation Report for the 244-AR Vault Interim Stabilization Ventilation System  

SciTech Connect (OSTI)

This document reports on the analysis, testing and conclusions of the software verification and validation for the 244-AR Vault Interim Stabilization ventilation system. Automation control system will use the Allen-Bradley software tools for programming and programmable logic controller (PLC) configuration. The 244-AR Interim Stabilization Ventilation System will be used to control the release of radioactive particles to the environment in the containment tent, located inside the canyon of the 244-AR facility, and to assist the waste stabilization efforts. The HVAC equipment, ducts, instruments, PLC hardware, the ladder logic executable software (documented code), and message display terminal are considered part of the temporary ventilation system. The system consists of a supply air skid, temporary ductwork (to distribute airflow), and two skid-mounted, 500-cfm exhausters connected to the east filter building and the vessel vent system. The Interim Stabilization Ventilation System is a temporary, portable ventilation system consisting of supply side and exhaust side. Air is supplied to the containment tent from an air supply skid. This skid contains a constant speed fan, a pre-filter, an electric heating coil, a cooling coil, and a constant flow device (CFD). The CFD uses a passive component that allows a constant flow of air to pass through the device. Air is drawn out of the containment tent, cells, and tanks by two 500-cfm exhauster skids running in parallel. These skids are equipped with fans, filters, stack, stack monitoring instrumentation, and a PLC for control. The 500CFM exhaust skids were fabricated and tested previously for saltwell pumping activities. The objective of the temporary ventilation system is to maintain a higher pressure to the containment tent, relative to the canyon and cell areas, to prevent contaminants from reaching the containment tent.

YEH, T.

2002-11-20T23:59:59.000Z

410

An investigation of simplified loss formula evaluation of total and incremental power system losses  

E-Print Network [OSTI]

Program ~ a o o ~ o a o o o o e a o o 11 Incremental Transmission Loss Calculation . . . . . . o 13 The Transmission System ~ a ~ o o ~ ~ o o o o o o 14 IVa RESULTS e ~ o a ~ ~ a a ~ e a o a ~ e ~ o a o o o IQ V SUMMARY a o o o a ~ o ~ a o 0 o o o ~ 0..., 1 X II tf g tf ff tf lt 4 0o9 50/ System Load ? Per Cent of Peak 1o06 f 1. 05 0 Xo1. 04 0 e 5 1, 03 1. 02 Ir 5 F. 1o01 4 tI 1o0 III II 0. 99 5 FIGURE IVa Simplified Loss Formula Evaluation of Pen- alty Faotor ? Bus 1 All...

Malinowski, James Henry

1962-01-01T23:59:59.000Z

411

Worker productivity and ventilation rate in a call center: Analyses of time-series data for a group of workers  

SciTech Connect (OSTI)

In previous studies, increased ventilation rates and reduced indoor carbon dioxide concentrations have been associated with improvements in health at work and increased performance in work-related tasks. Very few studies have assessed whether ventilation rates influence performance of real work. This paper describes part one of a two-part analysis from a productivity study performed in a call center operated by a health maintenance organization. Outside air ventilation rates were manipulated, indoor air temperatures, humidities, and carbon dioxide concentrations were monitored, and worker performance data for advice nurses, with 30-minute resolution, were analyzed via multivariate linear regression to look for an association of performance with building ventilation rate, or with indoor carbon dioxide concentration (which is related to ventilation rate per worker). Results suggest that the effect of ventilation rate on worker performance in this call center was very small (probably less than 1%) or nil, over most of the range of ventilation rate experienced during the study (roughly 12 L s{sup -1} to 48 L s{sup -1} per person). However, there is some evidence suggesting performance improvements of 2% or more when the ventilation rate per person is very high, as indicated by indoor CO{sub 2} concentrations exceeding outdoor concentrations by less than 75 ppm.

Fisk, William J.; Price, Phillip; Faulkner, David; Sullivan, Douglas; Dibartolomeo, Dennis; Federspiel, Cliff; Liu, Gang; Lahiff, Maureen

2002-01-01T23:59:59.000Z

412

Commissioning of a Coupled Earth Tube and Natural Ventilation System at the Design Phase  

E-Print Network [OSTI]

design simulation software DeST(8): combined simulation of natural and mechanical Ventilation??Journal of HVAC. 35(2) (In Chinese) Kato, S. 1997,1998. ?Application to indoor atmosphere of CFD (1?7)?, SHASE. 71(6?11),72(1) (In Japanese) Li, Y. 2002... coupled simulation method using this tool in conjunction with CFD (Computational Fluid Dynamics) to simultaneously calculate indoor air flow/temperature distribution and natural ventilation airflow rate. In this paper, at the design phase of an actual...

Yoshida, H.; Pan, S.; Zheng, M.

2007-01-01T23:59:59.000Z

413

Consideration of air jet angle in open surface tank push-pull ventilation system design  

E-Print Network [OSTI]

CONSIDERATION OF AIR JET ANGLE IN OPEN SURFACE TANK PUSH-PULL VENTILATION SYSTEM DESIGN A Thesis by WAI-HUNG DAVID CHAN Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree o... MASTER OF SCIENCE May 1983 Major Subjeot: Industrial Hygiene CONSIDERATION OF AIR JET ANGLE IN OPEN SURFACE TANK PUSH-PULL VENTILATION STSTEM DESIGN A Thesis by WAI-HUNG DAVID CHAN Approved as to style and content by: (C an of mmittee) J. Suggs...

Chan, Wai-Hung David

1983-01-01T23:59:59.000Z

414

Continuous Energy Management of the HVAC&R System in an Office Building System Operation and Energy Consumption for the Eight Years after Building Completion  

E-Print Network [OSTI]

The authors continuously studied the energy consumption of a heating, ventilating, air- conditioning and refrigerating (HVAC&R) system in an office for the operation of the system in terms of its expected performance. A fault in the system control...

Akashi, Y.; Shinozaki, M.; Kusuda, R.; Ito, S.

2006-01-01T23:59:59.000Z

415

The Histoty of Ventilation and Air Conditioning is CERN Up to Date with the latest Technological Developments?  

E-Print Network [OSTI]

The invention of ventilation cannot be ascribed to a certain date. It started with simple aeration when man brought fire into his abode and continued through different stages including air cooling using ice to finally arrive at the time when ventilation and air conditioning has become an essential part of our life and plays an important role in human evolution. This paper presents the history of ventilation and air conditioning, explains the key constraints over the centuries, and shows its influence on everyday life. Some examples of previous air-conditioning plants are described and different approaches to the way of calculation of ventilation systems discussed. It gives an overview of the Heating, Ventilation and Air Conditioning (HVAC) installations at CERN and points out their particularities. It also compares them with the latest technological developments in the field as well as showing the new trends that are being applied at CERN.

Kühnl-Kinel, J

2000-01-01T23:59:59.000Z

416

CAN J ANESTH 55: 9 www.cja-jca.org September, 2008 Purpose: Variable ventilation is superior to control mode venti-  

E-Print Network [OSTI]

no differences between groups, at any time peri- od, for PaO2 , PaCO2 , and static or dynamic respiratory system, and mechanically ventilated. Oleic acid was infused to introduce lung injury. The animals were ventilated, chosen to drive the variable ventilator, had no effect on indices of gas exchange or respiratory

Scafetta, Nicola

417

Kitchen Ventilation Should be High Performance (Not Optional)  

Broader source: Energy.gov [DOE]

This presentation was delivered at the U.S. Department of Energy Building America Technical Update meeting on April 29-30, 2013, in Denver, Colorado.

418

Low-Cost Ventilation in Production Housing - Building America...  

Energy Savers [EERE]

for New Homes: Imagine Homes, San Antonio, Texas Building America Best Practices Series Vol. 14: Energy Renovations - HVAC: A Guide for Contractors to Share with Homeowners...

419

Workers Remove Glove Boxes from Ventilation at Hanford's Plutonium  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment of Energyof Energy This webinarJanuary 1,

420

EnergyPlus Model Appendix G -EnergyPlus Model  

E-Print Network [OSTI]

Home B) C_ela 55.66 51.51 ELA (in.2) 38.83 35.93 The heating, ventilation, and air conditioning (HVAC) system is modeled as a single-speed heat pump with a Seasonal Energy Efficiency Ratio (SEER) of 13 where internal gains, heat pump operation mode and zone thermostat set-points are varied. Two sets

Note: This page contains sample records for the topic "incremental ventilation energy" 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

DOE Zero Energy Ready Home Case Study: Shore Road Project - Old...  

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

deck, and a continuously running energy recovery ventilator. The house has a dual-fuel heat pump, an instantaneous condensing water heater, and 4.5-kW solar shingles. DOE Zero...

422

Direct Digital Control- A Tool for Energy Management of HVAC Systems  

E-Print Network [OSTI]

Direct digital control (DDC) applied to heating, ventilating, and air-conditioning (HVAC) systems corrects many of the deficiencies of conventional automatic temperature control systems. By applying new control sequences, DDC optimizes HVAC energy...

Swanson, K.

423

reduced demand for power by nearly 1,500 megawatts through investments in energy  

E-Print Network [OSTI]

are in energy-efficient water heaters, lighting, windows and equipment for heating, ventilation and air and state water laws, as well as with recommendations in the biological opinions. The amendments describe

424

AIR FLOW MODELING IN DEEP WELLS: APPLICATION TO MINING VENTILATION  

E-Print Network [OSTI]

. The novel socio-political con- cern for energy consumption and increase of electricity prices in a context based on global system control and energy consumption op- timization. Two different levels of complexity the projects HYCON and SOCRADES. [5]. This short historical overview also illustrates the parallel evolution

Johansson, Karl Henrik

425

On-board state of health monitoring of lithium-ion batteries using incremental capacity analysis with support vector regressionq  

E-Print Network [OSTI]

On-board state of health monitoring of lithium-ion batteries using incremental capacity analysis-board battery state-of-health (SOH) monitoring framework is proposed. 2013 Accepted 5 February 2013 Available online 11 February 2013 Keywords: Electric vehicles Lithium

Peng, Huei

426

JRipples: A Tool for Program Comprehension during Incremental Change Jonathan Buckner, Joseph Buchta, Maksym Petrenko, Vclav Rajlich  

E-Print Network [OSTI]

development, agile development, and other software processes. Highly interactive tool JRipples provides software. They include iterative development, agile development, and software evolution. An essential task, Michigan USA 48202 Jbuckner@3dcs.com, {JBuchta,max,Rajlich}@wayne.edu Abstract Incremental software change

427

Integrated Demand Controlled Ventilation for Single Duct VAV System with Conference Rooms  

E-Print Network [OSTI]

acceptable indoor air quality (IAQ), the overall outside air (OA) intake ratio has to consider the demands from all the zones with the method provided by ASHRAE 62. Some high-ventilation required rooms make it difficult to use a low OA intake ratio...

Yu, Y.; Liu, M.; Cho, Y.; Xu, K.

2007-01-01T23:59:59.000Z

428

Ventilation and Air Quality in Indoor Ice Skating Arenas Chunxin Yang, Ph.D.1  

E-Print Network [OSTI]

There are thousands of indoor ice rink arenas in the United States, Canada, and Europe. The combustion byproducts from. A field survey of ten ice rink arenas in Greater Boston and Halifax, Nova Scotia indicates that the fuel environment, ventilation INTRODUCTION There are several thousands ice rink arenas in the United States

Chen, Qingyan "Yan"

429

Ventilation system consequence calculations to support salt well pumping single-shell tank 241-A-101  

SciTech Connect (OSTI)

This document presents the radiological dose and toxicological exposure calculations for an accident scenario involved with the ventilation system used to support salt well pumping single-shell tank 241-A-101. This tank has been listed on the Hydrogen Watch List.

Ryan, G.W.

1997-05-07T23:59:59.000Z

430

HEAT TRANSFERS IN A DOUBLE SKIN ROOF VENTILATED BY NATURAL CONVECTION IN SUMMER TIME  

E-Print Network [OSTI]

1 HEAT TRANSFERS IN A DOUBLE SKIN ROOF VENTILATED BY NATURAL CONVECTION IN SUMMER TIME P. H or in tropical and arid countries. In this work, radiation, convection and conduction heat transfers-dimensional numerical simulation of the heat transfers through the double skin reveals the most important parameters

Boyer, Edmond

431

1 Copyright 1999 by ASME MULTI-PHASE CFD ANALYSIS OF NATURAL AND VENTILATED CAVITATION  

E-Print Network [OSTI]

volume fraction transport/generation for liquid, condensable vapor and non-con- densable gas fields between condensable vapor and non-condensable gas, a requirement of our current applica- tion. By solving1 Copyright © 1999 by ASME MULTI-PHASE CFD ANALYSIS OF NATURAL AND VENTILATED CAVITATION ABOUT

Kunz, Robert Francis

432

Identifying Mathematical Models of the Mechanically Ventilated Lung Using Equation Discovery  

E-Print Network [OSTI]

of the respiratory system. Equation Discovery systems extract mathematical models from observed time series data knowledge. We introduce a modification of this system and apply it to data obtained during mechanical behavior of the respiratory sys- tem under the condition of mechanical ventilation. During the last decades

Kersting, Kristian

433

Building ventilation : a pressure airflow model computer generation and elements of  

E-Print Network [OSTI]

Building ventilation : a pressure airflow model computer generation and elements of validation H Abstract : The calculation of airflows is of great importance for detailed building thermal simulation the building and the outside on one hand, and the different thermal zones on the other. The driving effects

Paris-Sud XI, Université de

434

Modeling Ventilation in Multifamily Buildings John Markley, University of California, Davis -Western Cooling Efficiency Center  

E-Print Network [OSTI]

buildings have fallen between commercial and residential jurisdictions and, as a result, they have beenModeling Ventilation in Multifamily Buildings John Markley, University of California, Davis component of multifamily building design due to its effects on occupant health and comfort. Though

California at Davis, University of

435

Inventory and Ventilation Efficiency of Nonnative and Native Phragmites australis (Common Reed) in Tidal  

E-Print Network [OSTI]

NOTE Inventory and Ventilation Efficiency of Nonnative and Native Phragmites australis (Common Reed: 3 July 2012 # Coastal and Estuarine Research Federation 2012 Abstract Nonnative Phragmites is among the most in- vasive plants in the U.S. Atlantic coast tidal wetlands, whereas the native Phragmites has

436

TNKVNT: A model of the Tank 48 purge/ventilation exhaust system. Revision 1  

SciTech Connect (OSTI)

The waste tank purge ventilation system for Tank 48 is designed to prevent dangerous concentrations of hydrogen or benzene from accumulating in the gas space of the tank. Fans pull the gas/water vapor mixture from the tank gas space and pass it sequentially through a demister, a condenser, a reheater, and HEPA filters before discharging to the environment. Proper operation of the HEPA filters requires that the gas mixture passing through them has a low relative humidity. The ventilation system has been modified by increasing the capacity of the fans and changing the condenser from a two-pass heat exchanger to a single-pass heat exchanger. It is important to understand the impact of these modifications on the operation of the system. A hydraulic model of the ventilation exhaust system has been developed. This model predicts the properties of the air throughout the system and the flowrate through the system, as functions of the tank gas space and environmental conditions. This document serves as a Software Design Report, a Software Coding report, and a User`s Manual. All of the information required for understanding and using this code is herein contained: the governing equations are fully developed, the numerical algorithms are described in detail, and an extensively commented code listing is included. This updated version of the code models the entire purge ventilation system, and is therefore more general in its potential applications.

Shadday, M.A. Jr.

1996-04-01T23:59:59.000Z

437

Solar Ventilation Preheating Resources and Technologies | Department of  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage » SearchEnergyDepartmentScoping Study |4 SolarPV

438

ENERGY EFFICIENT BUILDINGS PROGRAM Chapter from the Energy and Environment Division Annual Report 1980  

SciTech Connect (OSTI)

The aim of the Energy Efficient Buildings Program is to conduct theoretical and experimental research on various aspects of building technology that will permit such gains in energy efficiency without decreasing occupants' comfort or adversely affecting indoor air quality. To accomplish this goal, we have developed five major research groups. The foci of these groups are: Energy Performance of Buildings; Building Ventilation and Indoor Air Quality; Building Energy Analysis; Energy Efficient Windows and Lighting; and Building Energy Data, Analysis and Demonstration.

Authors, Various

1981-05-01T23:59:59.000Z

439

Incremental online object learning in a vehicular radar-vision fusion framework  

SciTech Connect (OSTI)

In this paper, we propose an object learning system that incorporates sensory information from an automotive radar system and a video camera. The radar system provides a coarse attention for the focus of visual analysis on relatively small areas within the image plane. The attended visual areas are coded and learned by a 3-layer neural network utilizing what is called in-place learning, where every neuron is responsible for the learning of its own signal processing characteristics within its connected network environment, through inhibitory and excitatory connections with other neurons. The modeled bottom-up, lateral, and top-down connections in the network enable sensory sparse coding, unsupervised learning and supervised learning to occur concurrently. The presented work is applied to learn two types of encountered objects in multiple outdoor driving settings. Cross validation results show the overall recognition accuracy above 95% for the radar-attended window images. In comparison with the uncoded representation and purely unsupervised learning (without top-down connection), the proposed network improves the recognition rate by 15.93% and 6.35% respectively. The proposed system is also compared with other learning algorithms favorably. The result indicates that our learning system is the only one to fit all the challenging criteria for the development of an incremental and online object learning system.

Ji, Zhengping [Los Alamos National Laboratory; Weng, Juyang [Los Alamos National Laboratory; Luciw, Matthew [IEEE; Zeng, Shuqing [IEEE

2010-10-19T23:59:59.000Z

440

Incremental natural gas resources through infield reserve growth/secondary natural gas recovery  

SciTech Connect (OSTI)

The primary objective of the Infield Reserve Growth/Secondary Natural Gas Recovery (SGR) project is to develop, test, and verify technologies and methodologies with near- to midterm potential for maximizing the recovery of natural gasfrom conventional reservoirs in known fields. Additional technical and technology transfer objectives of the SGR project include: To establish how depositional and diagenetic heterogeneities in reservoirs of conventional permeability cause reservoir compartmentalization and, hence, incomplete recovery of natural gas. To document examples of reserve growth occurrence and potential from fluvial and deltaic sandstones of the Texas gulf coast basin as a natural laboratory for developing concepts and testing applications to find secondary gas. To demonstrate how the integration of geology, reservoir engineering, geophysics, and well log analysis/petrophysics leads to strategic recompletion and well placement opportunities for reserve growth in mature fields. To transfer project results to a wide array of natural gas producers, not just as field case studies, but as conceptual models of how heterogeneities determine natural gas flow units and how to recognize the geologic and engineering clues that operators can use in a cost-effective manner to identify incremental, or secondary, gas.

Finley, R.J.; Levey, R.A.; Hardage, B.A.

1993-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Use of 4-Dimensional Computed Tomography-Based Ventilation Imaging to Correlate Lung Dose and Function With Clinical Outcomes  

SciTech Connect (OSTI)

Purpose: Four-dimensional computed tomography (4DCT)-based ventilation is an emerging imaging modality that can be used in the thoracic treatment planning process. The clinical benefit of using ventilation images in radiation treatment plans remains to be tested. The purpose of the current work was to test the potential benefit of using ventilation in treatment planning by evaluating whether dose to highly ventilated regions of the lung resulted in increased incidence of clinical toxicity. Methods and Materials: Pretreatment 4DCT data were used to compute pretreatment ventilation images for 96 lung cancer patients. Ventilation images were calculated using 4DCT data, deformable image registration, and a density-change based algorithm. Dose–volume and ventilation-based dose function metrics were computed for each patient. The ability of the dose–volume and ventilation-based dose–function metrics to predict for severe (grade 3+) radiation pneumonitis was assessed using logistic regression analysis, area under the curve (AUC) metrics, and bootstrap methods. Results: A specific patient example is presented that demonstrates how incorporating ventilation-based functional information can help separate patients with and without toxicity. The logistic regression significance values were all lower for the dose–function metrics (range P=.093-.250) than for their dose–volume equivalents (range, P=.331-.580). The AUC values were all greater for the dose–function metrics (range, 0.569-0.620) than for their dose–volume equivalents (range, 0.500-0.544). Bootstrap results revealed an improvement in model fit using dose–function metrics compared to dose–volume metrics that approached significance (range, P=.118-.155). Conclusions: To our knowledge, this is the first study that attempts to correlate lung dose and 4DCT ventilation-based function to thoracic toxicity after radiation therapy. Although the results were not significant at the .05 level, our data suggests that incorporating ventilation-based functional imaging can improve prediction for radiation pneumonitis. We present an important first step toward validating the use of 4DCT-based ventilation imaging in thoracic treatment planning.

Vinogradskiy, Yevgeniy, E-mail: yevgeniy.vinogradskiy@ucdenver.edu [Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado (United States)] [Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado (United States); Castillo, Richard [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Castillo, Edward [Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas (United States) [Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Department of Computational and Applied Mathematics, Rice University, Houston, Texas (United States); Tucker, Susan L. [Departments of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Departments of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Liao, Zhongxing [Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Guerrero, Thomas [Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas (United States) [Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Department of Computational and Applied Mathematics, Rice University, Houston, Texas (United States); Martel, Mary K. [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas (United States)

2013-06-01T23:59:59.000Z

442

Hybrid Ventilation Optimization and Control Research and Development |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana.ProgramJulietip sheetK-4In 2013Department ofThis brieftheEnergy What

443

Summer Infiltration/Ventilation Test Results from the FRTF Laboratory |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of Energy Strain Rate4 RecoveryJuly 1, 2013On-BoardSummer Camp

444

Should Title 24 Ventilation Requirements Be Amended to  

E-Print Network [OSTI]

, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by its trade name, trademark procedure (IAQP) that may result in lower VRs than the VRP, with associated energy savings, if IAQ meeting

445

Ventilated Facade Design for Hot and Humid Climates  

E-Print Network [OSTI]

of Low Energy." Conferencia Internacional de Energía Renovable y Educación Energética, Havanna, Kuba. Haase, M., and Amato, A. (2006). "Double-skin facades in Hong Kong." SABE, HKIS to be published in June 2006. Haase, M. and Amato, A., (2005c...

Haase, M.; Amato, A.

2006-01-01T23:59:59.000Z

446

Systems and methods for controlling energy use in a building management system using energy budgets  

DOE Patents [OSTI]

Systems and methods for limiting power consumption by a heating, ventilation, and air conditioning (HVAC) subsystem of a building are shown and described. A feedback controller is used to generate a manipulated variable based on an energy use setpoint and a measured energy use. The manipulated variable may be used for adjusting the operation of an HVAC device.

Wenzel, Michael J; Drees, Kirk H

2014-09-23T23:59:59.000Z

447

Discussion on the Energy-Saving Potential of a Hybrid System in a Large Space Building in Different Areas  

E-Print Network [OSTI]

The use of a hybrid ventilation system is promoted to decrease the annual energy consumption of air conditioning. The switch-point of temperature, which is related with weather conditions, is presented to control the hybrid system properly...

Liu, S.; Huang, C.

2006-01-01T23:59:59.000Z

448

Assessment and Prediction of the Thermal Performance of a Centralized Latent Heat Thermal Energy Storage Utilizing Artificial Neural Network  

E-Print Network [OSTI]

A simulation tool is developed to analyze the thermal performance of a centralized latent heat thermal energy storage system (LHTES) using computational fluid dynamics (CFD). The LHTES system is integrated with a mechanical ventilation system...

El-Sawi, A.; Haghighat, F.; Akbari, H.

2013-01-01T23:59:59.000Z

449

Detection and diagnosis of faults and energy monitoring of HVAC systems with least-intrusive power analysis  

E-Print Network [OSTI]

Faults indicate degradation or sudden failure of equipment in a system. Widely existing in heating, ventilating, and air conditioning (HVAC) systems, faults always lead to inefficient energy consumption, undesirable indoor ...

Luo, Dong, 1966-

2001-01-01T23:59:59.000Z

450

4.42J / 1.044J / 2.66J Fundamentals of Energy in Buildings, Fall 2008  

E-Print Network [OSTI]

This subject provides a first course in thermo-sciences for students primarily interested in architecture and building technology. It introduces the fundamentals important to energy, ventilation, air conditioning and comfort ...

Glicksman, Leon

451

Natural Ventilation Applications in Hot-humid Climate: A Preliminary Design for the College of Design at NTUST  

E-Print Network [OSTI]

In Taiwan’s humid environment, the application of natural ventilation is an essential passive strategy for high performance buildings. However, conventional architectural design tools are rarely capable of analyzing the unpredictable air currents...

Lin, M. T.; Wei, H. Y.; Lin, Y. J.; Wu, H. F.; Liu, P. H.

452

Ventilation and Suppression Systems in Road Tunnels: Some Issues regarding their Appropriate Use in a Fire Emergency   

E-Print Network [OSTI]

Two important tunnel safety technologies are addressed. The majority of long road tunnels have ventilation systems. In the event of a fire in a tunnel, such systems will influence fire development in a number of different ...

Carvel, Ricky O; Rein, Guillermo; Torero, Jose L

453

H.N. Knudsen, P. Wargocki and J. Vondruskova (2006) "Effect of ventilation on perceived quality of air polluted  

E-Print Network [OSTI]

quality of air polluted by building materials ­ a summary of reported data", Proceedings of Healthy Buildings 2006, Vol. 1, 57-62. #12;#12;Effect of ventilation on perceived quality of air polluted

454

Conf Proc IEEE Eng Med Biol Soc. Author manuscript A model of ventilation used to interpret newborn lamb respiratory signals  

E-Print Network [OSTI]

Mechanics ; physiology ; Sheep Introduction Respiratory problems are particularly frequent in the neonatal of the neonatal respiratory system is yet available.. Mathematical modeling, which integrates interacting respiratory dynamics. Functionally, the mammalian respiratory system is made of three components: ventilation

Paris-Sud XI, Université de

455

Transition dynamics between the multiple steady states in natural ventilation systems : from theories to applications in optimal controls  

E-Print Network [OSTI]

In this study, we investigated the multiple steady state behavior, an important observation in numerical and experimental studies in natural ventilation systems. The-oretical models are developed and their applications in ...

Yuan, Jinchao

2007-01-01T23:59:59.000Z

456

Weatherstripping | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy UsageAUDITVehiclesTankless or Demand-Type WaterTravelVentilationWaterWeatherstripping

457

EVALUATION OF BEST AVAILABLE CONTROL TECHNOLOGY FOR TOXICS -TBACT- DOUBLE SHELL TANK FARMS PRIMARY VENTILATION SYSTEMS SUPPORTING WASTE TRANSFER OPERATIONS  

SciTech Connect (OSTI)

This report is an evaluation of Best Available Control Technology for Toxics (tBACT) for installation and operation of the Hanford double shell (DST) tank primary ventilation systems. The DST primary ventilation systems are being modified to support Hanford's waste retrieval, mixing, and delivery of single shell tank (SST) and DST waste through the DST storage system to the Waste Treatment and Immobilizaiton Plant (WTP).

HAAS CC; KOVACH JL; KELLY SE; TURNER DA

2010-06-24T23:59:59.000Z

458

EVALUATION OF BEST AVAILABLE CONTROL TECHNOLOGY FOR TOXICS (TBACT) DOUBLE SHELL TANK FARMS PRIMARY VENTILATION SYSTEM SUPPORTING WASTE TRANSFER OPERATIONS  

SciTech Connect (OSTI)

This report is an evaluation of Best Available Control Technology for Toxics (tBACT) for installation and operation of the Hanford double shell (DST) tank primary ventilation systems. The DST primary ventilation systems are being modified to support Hanford's waste retrieval, mixing, and delivery of single shell tank (SST) and DST waste throught the DST storage system to the Waste Treatment and Immobilization Plant (WTP).

KELLY SE; HAASS CC; KOVACH JL; TURNER DA

2010-06-03T23:59:59.000Z

459

SU-E-J-86: Lobar Lung Function Quantification by PET Galligas and CT Ventilation Imaging in Lung Cancer Patients  

SciTech Connect (OSTI)

Purpose: The purpose of this study was to quantify the lobar lung function using the novel PET Galligas ([68Ga]-carbon nanoparticle) ventilation imaging and the investigational CT ventilation imaging in lung cancer patients pre-treatment. Methods: We present results on our first three lung cancer patients (2 male, mean age 78 years) as part of an ongoing ethics approved study. For each patient a PET Galligas ventilation (PET-V) image and a pair of breath hold CT images (end-exhale and end-inhale tidal volumes) were acquired using a Siemens Biograph PET CT. CT-ventilation (CT-V) images were created from the pair of CT images using deformable image registration (DIR) algorithms and the Hounsfield Unit (HU) ventilation metric. A comparison of ventilation quantification from each modality was done on the lobar level and the voxel level. A Bland-Altman plot was used to assess the difference in mean percentage contribution of each lobe to the total lung function between the two modalities. For each patient, a voxel-wise Spearmans correlation was calculated for the whole lungs between the two modalities. Results: The Bland-Altman plot demonstrated strong agreement between PET-V and CT-V for assessment of lobar function (r=0.99, p<0.001; range mean difference: ?5.5 to 3.0). The correlation between PET-V and CT-V at the voxel level was moderate(r=0.60, p<0.001). Conclusion: This preliminary study on the three patients data sets demonstrated strong agreement between PET and CT ventilation imaging for the assessment of pre-treatment lung function at the lobar level. Agreement was only moderate at the level of voxel correlations. These results indicate that CT ventilation imaging has potential for assessing pre-treatment lobar lung function in lung cancer patients.

Eslick, E; Kipritidis, J; Keall, P [University of Sydney, Camperdown, NSW (Australia); Bailey, D; Bailey, E [Royal North Shore Hospital, St. Leonards, NSW (Australia)

2014-06-01T23:59:59.000Z

460

Evaluation of cracking in the 241-AZ tank farm ventilation line at the Hanford Site  

SciTech Connect (OSTI)

In the period from April to October of 1988, a series of welding operations on the outside of the AZ Tank Farm ventilation line piping at the Hanford Site produced unexpected and repeated cracking of the austenitic stainless steel base metal and of a seam weld in the pipe. The ventilation line is fabricated from type 304L stainless steel pipe of 24 inch diameter and 0.25 inch wall thickness. The pipe was wrapped in polyethylene bubble wrap and buried approximately 12 feet below grade. Except for the time period between 1980 and 1987, impressed current cathodic protection has been applied to the pipe since its installation in 1974. The paper describes the history of the cracking of the pipe, the probable cracking mechanisms, and the recommended future action for repair/replacement of the pipe.

ANANTATMULA, R.P.

1999-10-20T23:59:59.000Z

Note: This page contains sample records for the topic "incremental ventilation energy" 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

Trends in Heating and Cooling Degree Days: Implications for Energy Demand Issues (released in AEO2008)  

Reports and Publications (EIA)

Weather-related energy use, in the form of heating, cooling, and ventilation, accounted for more than 40% of all delivered energy use in residential and commercial buildings in 2006. Given the relatively large amount of energy affected by ambient temperature in the buildings sector, the Energy Information Administration has reevaluated what it considers normal weather for purposes of projecting future energy use for heating, cooling, and ventilation. The Annual Energy Outlook 2008, estimates of normal heating and cooling degree-days are based on the population-weighted average for the 10-year period from 1997 through 2006.

2008-01-01T23:59:59.000Z

462

Multiphase flow and multicomponent reactive transport model of the ventilation experiment in Opalinus clay  

SciTech Connect (OSTI)

During the construction and operational phases of a high-level radioactive waste (HLW) repository constructed in a clay formation, ventilation of underground drifts will cause desaturation and oxidation of the rock. The Ventilation Experiment (VE) was performed in a 1.3 m diameter unlined horizontal microtunnel on Opalinus clay at Mont Terri underground research laboratory in Switzerland to evaluate the impact of desaturation on rock properties. A multiphase flow and reactive transport model of VE is presented here. The model accounts for liquid, vapor and air flow, evaporation/condensation and multicomponent reactive solute transport with kinetic dissolution of pyrite and siderite and local-equilibrium dissolution/precipitation of calcite, ferrihydrite, dolomite, gypsum and quartz. Model results reproduce measured vapor flow, liquid pressure and hydrochemical data and capture the trends of measured relative humidities, although such data are slightly overestimated near the rock interface due to uncertainties in the turbulence factor. Rock desaturation allows oxygen to diffuse into the rock and triggers pyrite oxidation, dissolution of calcite and siderite, precipitation of ferrihydrite, dolomite and gypsum and cation exchange. pH in the unsaturated rock varies from 7.8 to 8 and is buffered by calcite. Computed changes in the porosity and the permeability of Opalinus clay in the unsaturated zone caused by oxidation and mineral dissolution/precipitation are smaller than 5%. Therefore, rock properties are not expected to be affected significantly by ventilation of underground drifts during construction and operational phases of a HLW repository in clay.

Zheng, L.; Samper, J.; Montenegro, L.; Major, J.C.

2008-10-15T23:59:59.000Z

463

The Benefits of Better Ventilation and Filtration Practices in Schools  

E-Print Network [OSTI]

Environment Department of the Lawrence Berkeley National Laboratory www.iaqscience.lbl.gov/sfrb.html Research Shows the Test Score Effects of Irritant Gases ESL-KT-13-12-17 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16... Findings Resource Bank (IAQ-SFRB), Indoor Environment Department of the Lawrence Berkeley National Laboratory www.iaqscience.lbl.gov/sfrb.html Research Shows the Absenteeism Effects of Irritant Gases Desired level 1000 ppm > 7.10 l/s/p (15 cfm/p) 1 l...

Lamping, G.

2013-01-01T23:59:59.000Z

464

Moisture and Ventilation Solutions in Hot, Humid Climates: Florida  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't32Department of Energy Modular CHP System forManufactured

465

Virtual Toolkit | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of| Department of Energy Ventilation SystemNovember

466

Addressing Kitchen Contaminants for Healthy, Low-Energy Homes  

SciTech Connect (OSTI)

Cooking and cooking burners emit pollutants that can adversely affect indoor air quality in residences and significantly impact occupant health. Effective kitchen exhaust ventilation can reduce exposure to cooking-related air pollutants as an enabling step to healthier, low-energy homes. This report identifies barriers to the widespread adoption of kitchen exhaust ventilation technologies and practice and proposes a suite of strategies to overcome these barriers. The recommendations have been vetted by a group of industry, regulatory, health, and research experts and stakeholders who convened for two web-based meetings and provided input and feedback to early drafts of this document. The most fundamental barriers are (1) the common misconception, based on a sensory perception of risk, that kitchen exhaust when cooking is unnecessary and (2) the lack of a code requirement for kitchen ventilation in most US locations. Highest priority objectives include the following: (1) Raise awareness among the public and the building industry of the need to install and routinely use kitchen ventilation; (2) Incorporate kitchen exhaust ventilation as a requirement of building codes and improve the mechanisms for code enforcement; (3) Provide best practice product and use-behavior guidance to ventilation equipment purchasers and installers, and; (4) Develop test methods and performance targets to advance development of high performance products. A specific, urgent need is the development of an over-the-range microwave that meets the airflow and sound requirements of ASHRAE Standard 62.2.

Stratton, J. Chris; Singer, Brett C.

2014-01-01T23:59:59.000Z

467

Worker productivity and ventilation rate in a call center: Analyses of time-series data for a group of registered nurses  

SciTech Connect (OSTI)

We investigated the relationship of ventilation rates with the performance of advice nurses working in a call center. Ventilation rates were manipulated; temperatures, humidities, and CO{sub 2} concentrations were monitored; and worker performance data, with 30-minute resolution, were collected. Multivariate linear regression was used to investigate the association of worker performance with indoor minus outdoor CO{sub 2} concentration (which increases with decreasing ventilation rate per worker) and with building ventilation rate. Results suggest that the effect of ventilation rate on worker performance in this call center was very small (probably less than 1%) or nil, over most of the range of ventilation rate (roughly 12 L s{sup -1} to 48 L s{sup -1} per person). However, there is some evidence of worker performance improvements of 2% or more when the indoor CO{sub 2} concentration exceeded the outdoor concentration by less than 75 ppm.

Fisk, William J.; Price, Phillip; Faulkner, David; Sullivan, Douglas; Dibartolomeo, Dennis

2003-08-01T23:59:59.000Z

468

A Meta-Analysis of Single-Family Deep Energy Retrofit Performance in the U.S.  

SciTech Connect (OSTI)

The current state of Deep Energy Retrofit (DER) performance in the U.S. has been assessed in 116 homes in the United States (US), using actual and simulated data gathered from the available domestic literature. Substantial airtightness reductions averaging 63% (n=48) were reported (two- to three-times more than in conventional retrofits), with average post-retrofit airtightness of 4.7 Air Changes per House at 50 Pascal (ACH50) (n=94). Yet, mechanical ventilation was not installed consistently. In order to avoid indoor air quality (IAQ) issues, all future DERs should comply with ASHRAE 62.2-2013 requirements or equivalent. Projects generally achieved good energy results, with average annual net-site and net-source energy savings of 47%±20% and 45%±24% (n=57 and n=35), respectively, and carbon emission reductions of 47%±22% (n=23). Net-energy reductions did not vary reliably with house age, airtightness, or reported project costs, but pre-retrofit energy usage was correlated with total reductions (MMBtu). Annual energy costs were reduced $1,283±$804 (n=31), from a pre-retrofit average of $2,738±$1,065 to $1,588±$561 post-retrofit (n=25 and n=39). The average reported incremental project cost was $40,420±$30,358 (n=59). When financed on a 30-year term, the median change in net-homeownership cost was only $1.00 per month, ranging from $149 in savings to an increase of $212 (mean=$15.67±$87.74; n=28), and almost half of the projects resulted in reductions in net-cost. The economic value of a DER may be much greater than is suggested by these net-costs, because DERs entail substantial non-energy benefits (NEBs), and retrofit measures may add value to a home at resale similarly to general remodeling, PV panel installation, and green/energy efficient home labels. These results provide estimates of the potential of DERs to address energy use in existing homes across climate zones that can be used in future estimates of the technical potential to reduce household energy use and greenhouse gas emissions through DERs.

Less, Brennan; Walker, Iain

2014-03-01T23:59:59.000Z

469

Faced with rising fuel costs, building and home owners are looking for energy-efficient solutions. Improving the building envelope (roof or attic system, walls,  

E-Print Network [OSTI]

, ventilating, and air-conditioning (HVAC) accounts for 17% of the nation's primary energy consumption. However and North America. Scaling envelope improve- ments in the market is now feasible without fear of unintended

Oak Ridge National Laboratory

470

BUILDING VENTILATION AND INDOOR AIR QUALITY PROGRAM. CHAPTER FROM ENERGY AND ENVIRONMENT DIVISION ANNUAL REPORT 1978  

E-Print Network [OSTI]

Critical Analysis of Nitrogen Dioxide Air Quality Standards.22 Gaseous Emissions: Nitrogen Dioxide, Carbon Monoxide,3- 4 GASEOUS EMISSIONS: NITROGEN DIOXIDE, CARBON MONOXIDE,

Cairns, Elton J.

2011-01-01T23:59:59.000Z

471

INDOOR AIR QUALITY AND ENERGY EFFICIENT VENTILATION RATES AT A NEW YORK CITY ELEMENTARY SCHOOL  

E-Print Network [OSTI]

carbon monoxide, nitrogen dioxide, nitric oxide, ozone andppm) 10 mg/m 3 (9 ppm) Nitrogen dioxide EPA 100 M91m 3 (50and except for nitrogen dioxide in one of the classrooms.

Young, Rodger A.

2013-01-01T23:59:59.000Z

472

Energy Conservation Through Improved Industrial Ventilation in Small and Medium-Sized Industrial Plants  

E-Print Network [OSTI]

sawdust In the original operation, two fans supplied the necessary air for the production area. The velocities in both ducts were measured. The 18" line had air velocity of 6000 fpm, whereas the 30" duct had a velocity of 2000 fpm. The standard design... velocity for moving sawdust and wood chips is between 3500 and 4000 fpm [3]. This indicated that there was probably some settling of dust in the large duct. Such situation causes reduction in efficiency and the settling may continue to build up resulting...

Saman, N. F.; Nutter, D. W.

473

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

E-Print Network [OSTI]

the analysis, most importantly acrolein, NO 2 , and PM 2.5 .concentrations found that acrolein concentrations were onof PM 2.5 , NO 2 , and acrolein requires a substantially

Logue, J.M.

2012-01-01T23:59:59.000Z

474

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

E-Print Network [OSTI]

Lurmann.2010. "Air pollution, health and economic benefits-health impact factors from the literature are used to quantify total harm attributable to indoor air pollution.

Logue, J.M.

2012-01-01T23:59:59.000Z

475

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

E-Print Network [OSTI]

connected to the home’s central heating and cooling system.homes. For homes with electric heating, given the higher

Logue, J.M.

2012-01-01T23:59:59.000Z

476

New Air Cleaning Strategies for Reduced Commercial Building Ventilation Energy ? FY11 Final Report  

E-Print Network [OSTI]

1) indoor pollutant source control, and 2) air cleaning.control is complicated by the large number and changing nature of indoor pollutant sources. Particle air

Sidheswaran, Meera

2013-01-01T23:59:59.000Z

477

Issue #9: What are the Best Ventilation Techniques? | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe10 DOE VehicleStationaryLaboratory,Iowa9: What are the Best

478

Incremental checkpointing of program state to NVRAM for transiently-powered systems  

E-Print Network [OSTI]

in Flash memory before power loss and restores it when energy is available. Contrary to Mementos, we to NVRAM before power loss,

479

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

E-Print Network [OSTI]

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

2014-01-01T23:59:59.000Z

480

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

E-Print Network [OSTI]

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

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "incremental ventilation energy" 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

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

E-Print Network [OSTI]

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

2012-01-01T23:59:59.000Z

482

System for controlling a hybrid energy system  

DOE Patents [OSTI]

A method includes identifying a first operating sequence of a repeated operation of at least one non-traction load. The method also includes determining first and second parameters respectively indicative of a requested energy and output energy of the at least one non-traction load and comparing the determined first and second parameters at a plurality of time increments of the first operating sequence. The method also includes determining a third parameter of the hybrid energy system indicative of energy regenerated from the at least one non-traction load and monitoring the third parameter at the plurality of time increments of the first operating sequence. The method also includes determining at least one of an energy deficiency or an energy surplus associated with the non-traction load of the hybrid energy system and selectively adjusting energy stored within the storage device during at least a portion of a second operating sequence.

Hoff, Brian D.; Akasam, Sivaprasad

2013-01-29T23:59:59.000Z

483

Energy Savings by Wideband Temperature Control in Telephone Offices  

E-Print Network [OSTI]

In 1982, 6.9 million BOE of energy costing nearly $600 million was used in approximately 16,000 Bell System Telephone equipment buildings. About 27% of that energy was used for heating, ventilating and air conditioning. The most cost...

Lingousky, J. E.; McKay, J. R.

1983-01-01T23:59:59.000Z

484

The Measured Energy Impact of Infiltration Under Dynamic Conditions  

E-Print Network [OSTI]

Energy Engineering, Vol. 112, 1990, pp. 132-139. Guo Jun, Liu Mingsheng, 1985, "The Energy Saving Effect of Double Frame Windows," Proceedings oj the CLlMA 2()(x) World Congress in Heating, Ventilating and Air-Conditioning, Copenhagen, Denmark...

Liu, M.; Claridge, D. E.

485

Finite element analysis and design of large diameter flexible vertical pipes subjected to incremental compacted backfill loads and creep effects  

E-Print Network [OSTI]

FINITE ELEMENT ANALYSIS AND DESiGN OF LARGE DIANETER FLEXIBLE VERTICAL PIPES SUBJECTED TO INCREMENTAL COMPACTED BACKFILL LOADS AND CREEP EFFECTS A Thesis by MOHAMMAD KABIR HOSSAIN Submitted to the Office of Graduate Studies of Texas A... BACKFILL LOADS AND CREEP EFFECTS A Thesis by MOHAMMAD KABIR HOSSAIN Approved as to sty1e and content by: R be+r L. Lytton (Chair of Committee) Ozden 0. Ochoa (Member) Derek V. Morris (Member) ames T P Yao (Head of rtment) ABSTRACT Finite...

Hossain, Mohammad Kabir

1990-01-01T23:59:59.000Z

486

Evaluation and design of ventilation systems for autopsy and surgical examination tables  

E-Print Network [OSTI]

)-TLV of 1 ppm and the 2 ppm Short Term Exposure Limit. '" NIOSH has also lowered its 8-hr TWA and Ceiling Level to 0. 016 ppm and 0. 1 ppm, respectively. "' Formaldehyde is a gas at room temperature. Its threshold of odor is approximately 1 ppm. It is a... double cone down-draft local exhaust ventilation (LEV) design produced by Shandon Lipshaw was evaluated in order to determine if personnel working at dissection tables are overexposed to formaldehyde. Mannequin exposure monitoring and static pressure...

Murgash, Mark John

1993-01-01T23:59:59.000Z

487

Incremental costs and optimization of in-core fuel management of nuclear power plants  

E-Print Network [OSTI]

This thesis is concerned with development of methods for optimizing the energy production and refuelling decision for nuclear power plants in an electric utility system containing both nuclear and fossil-fuelled stations. ...

Watt, Hing Yan

1973-01-01T23:59:59.000Z

488

Incremental learning of context-dependent dynamic internal models for robot control  

E-Print Network [OSTI]

, energy efficiency) with respect to model-free approaches. However, as robots become more and more complex Tecnologia de Set´ubal, Portugal Fig. 1. The iCub robot holding a 33cl plastic bottle filled with water

Instituto de Sistemas e Robotica

489

Lawrence Berkeley Laboratory Report This work was supported by the U.S. Environmental Protection Agency and by the Assistant Secretary for Energy  

E-Print Network [OSTI]

of the U.S. Department of Energy under Contract No. DE-AC03-76SF00098. How Low Can You Go? Low Pressure and easiest target for energy use reduction is usually the ventilation energy. At about 50% of the buildings.S. Environmental Protection Agency and by the Assistant Secretary for Energy Efficiency and Renewable Energy

490

Energy efficient indoor VOC air cleaning with activated carbon fiber (ACF) filters Meera A. Sidheswaran a  

E-Print Network [OSTI]

Energy efficient indoor VOC air cleaning with activated carbon fiber (ACF) filters Meera A Keywords: Activated carbon fiberVolatile organic compoundIndoor pollutantEnergy efficient ventilation a b s t r a c t This study explores the potential environmental and energy benefits of using activated

491

Occupancy Modeling and Prediction for Building Energy Varick L. Erickson, University of California, Merced  

E-Print Network [OSTI]

A Occupancy Modeling and Prediction for Building Energy Management Varick L. Erickson, University.Cerpa, University of California, Merced Heating, cooling and ventilation accounts for 35% energy usage in the United and Prediction for Building Energy Management and Auditing. ACM Trans. Sensor Netw. V, N, Article A (August 2012

Cerpa, Alberto E.

492

Dojat et al. International Journal of Clinical Monitoring and Computing. 1992;9:239-250. A KNOWLEDGE-BASED SYSTEM FOR ASSISTED VENTILATION OF  

E-Print Network [OSTI]

with respiratory insufficiency from mechanical ventilation may be complex and requires expertise obtained by long respiratory support and implemented a weaning procedure. The system is intended for patients whose spontaneous-based system, Medical decision-making, Process control, Real-time, Weaning from mechanical ventilation. inserm

Paris-Sud XI, Université de

493

Indoor environmental quality and ventilation in U.S. office buildings: A view of current issues  

SciTech Connect (OSTI)

Much of the current focus on indoor environmental quality and ventilation in US office buildings is a response to sick building syndrome and occupant complaints about building-related health symptoms, poor indoor air quality, and thermal discomfort. The authors know that serious ``sick-building`` problems occur in a significant number of US office buildings and that a significant proportion of the occupants in many normal (non-sick) buildings report building-related health symptoms. Concerns about the health effects of environmental tobacco smoke have also focused attention on the indoor environment. The major responses of industry and governments, underway at the present time, are to restrict smoking in offices, to attempt to reduce the emissions of indoor pollutants, and to improve the operation of heating, ventilating and air conditioning (HVAC) systems. Better air filtration, improved HVAC commissioning and maintenance, and increased provisions for individual control of HVAC are some of the improvements in HVAC that are currently being, evaluated. In the future, the potential for improved productivity and reduced airborne transmission of infectious disease may become the major driving force for improved indoor environments.

Fisk, W.J.

1994-11-01T23:59:59.000Z

494

Optical People Counting for Demand Controlled Ventilation: A Pilot Study of Counter Performance  

SciTech Connect (OSTI)

This pilot scale study evaluated the counting accuracy of two people counting systems that could be used in demand controlled ventilation systems to provide control signals for modulating outdoor air ventilation rates. The evaluations included controlled challenges of the people counting systems using pre-planned movements of occupants through doorways and evaluations of counting accuracies when naive occupants (i.e., occupants unaware of the counting systems) passed through the entrance doors of the building or room. The two people counting systems had high counting accuracy accuracies, with errors typically less than 10percent, for typical non-demanding counting events. However, counting errors were high in some highly challenging situations, such as multiple people passing simultaneously through a door. Counting errors, for at least one system, can be very high if people stand in the field of view of the sensor. Both counting system have limitations and would need to be used only at appropriate sites and where the demanding situations that led to counting errors were rare.

Fisk, William J.; Sullivan, Douglas

2009-12-26T23:59:59.000Z

495

Veteran's Contacts | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy UsageAUDITVehiclesTankless or Demand-Type WaterTravelVentilation Systems

496

Energy  

Office of Legacy Management (LM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment ofof EnergyYou$ EGcG ENERGY MEASUREMENTS;/:4,4 (; . 1.;Suire

497

A Semiparametric Mixed Model for Increment-Averaged Data with Application  

E-Print Network [OSTI]

software ­ automatic smoothing parameter selection ­ results and extensions #12;Greenhouse Effect · Solar energy transmitted to earth as visible and ultraviolet radiation Atmosphere Surface Reflected 25% 5 #12;Advantages of No-Till Management · NT results in lower production costs ­ fewer management steps

498

PROGRESS IN ENERGY EFFICIENT BUILDINGS  

SciTech Connect (OSTI)

Recent accomplishments in buildings energy research by the diverse groups in the Energy Efficient Buildings Program at Lawrence Berkeley Laboratory (LBL) are summarized. We review technological progress in the areas of ventilation and indoor air quality, buildings energy performance, computer modeling, windows, and artificial lighting. The need for actual consumption data to track accurately the improving energy efficiency of buildings is being addressed by the Buildings Energy Data (BED) Group at LBL. We summarize results to date from our Building Energy Use Compilation and Analysis (BECA) studies, which include time trends in the energy consumption of new commercial and new residential buildings, the measured savings being attained by both commercial and residential retrofits, and the cost-effectiveness of buildings energy conservation measures. We also examine recent comparisons of predicted vs. actual energy usage/savings, and present the case for building energy use labels.

Wall, L.W.; Rosenfeld, A.H.

1982-12-01T23:59:59.000Z

499

Optimization of a Solar Chimney Design to Enhance Natural Ventilation in a Multi-Storey Office Building  

E-Print Network [OSTI]

Natural ventilation of buildings can be achieved with solar-driven , buoyancy-induced airflow through a solar chimney channel. Research on solar chimneys has covered a wide range of topics, yet study of the integration in multi-storey buildings has...

Gontikaki, M.; Trcka, M.; Hensen, J.; Hoes, P. J.

2010-01-01T23:59:59.000Z

500

Organic-rich sediments in ventilated deep-sea environments: Relationship to climate, sea level, and trophic changes  

E-Print Network [OSTI]

Organic-rich sediments in ventilated deep-sea environments: Relationship to climate, sea level. [1] Sediments on the Namibian Margin in the SE Atlantic between water depths of $1000 and $3600 m are highly enriched in hydrocarbon-prone organic matter. Such sedimentation has occurred for more than 2

Boyer, Edmond