National Library of Energy BETA

Sample records for achieving indoor air

  1. Indoor Air Quality

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

    In Focus For decades, teams of Berkeley Lab scientists have investigated the ways that indoor air quality affects human health-from cognitive ability to personal comfort...

  2. Health Hazards in Indoor Air

    E-Print Network [OSTI]

    Logue, Jennifer M.

    2012-01-01

    Health Hazards in Indoor Air. In Proceedings of the 2010for VOCs from post-1990 indoor air concentration studies inUnion project on indoor air pollutants. Allergy, 2008. 63(

  3. COMBUSTION-GENERATED INDOOR AIR POLLUTION

    E-Print Network [OSTI]

    Hollowell, C.D.

    2011-01-01

    Ext. 6782 Combustion -Generated Indoor Air Pollution Craigcontrol of air pollution from indoor combustion sources. Ifocused on combustion-generated indoor air pollution, namely

  4. Fresh air indoors

    SciTech Connect (OSTI)

    Kull, K.

    1988-09-01

    This article describes and compares ventilation systems for the control of indoor air pollution in residential housing. These include: local exhaust fans, whole-house fans, central exhaust with wall ports, and heat-recovery central ventilation (HRV). HRV's have a higher initial cost than the other systems but they are the only ones that save energy. Homeowners are given guidelines for choosing the system best suited for their homes in terms of efficiency and payback period.

  5. Indoor air quality: Selected references

    SciTech Connect (OSTI)

    Not Available

    1989-05-01

    This document was compiled in response to an increasing number of requests for information about indoor air quality, including sick-building syndrome. Included in the publication are the NIOSH Congressional testimony presented before the Subcommittee on Energy Development and Applications; two articles describing the results of NIOSH research and findings on indoor air-quality problems; NIOSH guidance on conducting indoor-air-quality investigations; and a description of the NIOSH health-hazard evaluation program, which can provide NIOSH assistance in evaluating indoor-air-quality problems.

  6. Air temperature thresholds for indoor comfort and perceived air quality

    E-Print Network [OSTI]

    Zhang, Hui; Edward, Arens; Pasut, Wilmer

    2012-01-01

    in the Netherlands, Indoor Air 2, 127 – 136. BuildingPaliaga, G. (2009) Moving air for comfort. ASHRAE Journal,ventilation system on perceived air quality, Indoor Air

  7. COMBUSTION-GENERATED INDOOR AIR POLLUTION

    E-Print Network [OSTI]

    Hollowell, C.D.

    2010-01-01

    of indoor combustion-generated air pollution in residen-LBL-S9lS COMBUSTION-GENERATED INDOOR AIR POLLUTION Dr. C. D.L,BL-5918 COMBUSTION-GENERATED INDOOR AIR POLLUTION C. D.

  8. COMBUSTION-GENERATED INDOOR AIR POLLUTION

    E-Print Network [OSTI]

    Hollowell, C.D.

    2010-01-01

    The Status of Indoor Air Pollution Research 1976. GeometNovakov, T. : Formation of Pollution Particulate NitrogenGENERATED INDOOR AIR POLLUTION Dr. C. D. Hollowell, Dr. R.

  9. Workshop on indoor air quality research needs

    SciTech Connect (OSTI)

    Not Available

    1980-01-01

    Workshop participants report on indoor air quality research needs including the monitoring of indoor air quality, report of the instrumentation subgroup of indoor air quality, health effects, and the report of the control technology session. Risk analysis studies addressing indoor environments were also summarized. (DLS)

  10. COMBUSTION-GENERATED INDOOR AIR POLLUTION

    E-Print Network [OSTI]

    Hollowell, C.D.

    2010-01-01

    The Status of Indoor Air Pollution Research 1976. GeometGENERATED INDOOR AIR POLLUTION Dr. C. D. Hollowell, Dr. R.W. Traynor Introduction Air pollution research has focused

  11. Indoor Air Quality Poor indoor air quality comes from many sources. It can lead to having

    E-Print Network [OSTI]

    Indoor Air Quality Fact Sheet Poor indoor air quality comes from many sources. It can lead Indoor Air Pollutants · Molds · Pollen · Dander from pet fur · Secondhand smoke · Formaldehyde · Carbon such as cleaners and pesticides How to Improve Indoor Air Quality · Open windows when you can to let in fresh air

  12. COMBUSTION-GENERATED INDOOR AIR POLLUTION

    E-Print Network [OSTI]

    Hollowell, C.D.

    2011-01-01

    The Japanese Union of Air Pollution Prevention Associations,The Status of Indoor Air Pollution Research 1976, GeometAnnual Meeting of the Air Pollution Control Association,

  13. Investigative Tools and Techniques for Indoor Air Quality Studies 

    E-Print Network [OSTI]

    Kennedy, S. R.; Quinn, C. B.; Henderson, J. E.; Vickery, R. G.

    1994-01-01

    Indoor air quality problems are diverse and often complex. Adverse indoor air quality problems can exist which create symptomatic conditions for building occupants. Often, the exact cause, or causes, of the substandard indoor air quality are unknown...

  14. INDOOR AIR QUALITY IN ENERGY-EFFICIENT BUILDINGS

    E-Print Network [OSTI]

    Hollowell, Craig D.

    2011-01-01

    for studies of indoor air quality and energy utilization inExt. 6782 Indoor Air Quality in Energy- Buildings Craig D.1, 1979) Indoor Air Quality in Energy~Efficient LBL-8892 EEB

  15. Indoor airPLUS Construction Specifications | Department of Energy

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

    Specifications Indoor airPLUS Construction Specifications Indoor airPLUS Construction Specifications Version 1 (Rev. 01) EPA 402K-13001, February 2013 iaprev1.pdf More Documents...

  16. Indoor airPLUS Construction Specifications Version 1 (Rev. 02...

    Energy Savers [EERE]

    Specifications Version 1 (Rev. 02) Indoor airPLUS Construction Specifications Version 1 (Rev. 02) Indoor airPLUS Construction Specifications Version 1 (Rev. 02), November 2013,...

  17. INDOOR AIR QUALITY MEASUREMENTS IN ENERGY EFFICIENT BUILDINGS

    E-Print Network [OSTI]

    Hollowell, C.D.

    2011-01-01

    focused on combustion-generated indoor air pollution, namelyimpact of combustion-generated indoor air pollution on humanpollution sources exist inside buildings, notably sources associated with combustion (

  18. ENERGY STAR Webinar: Energy Savings Plus Health: Indoor Air Quality...

    Office of Environmental Management (EM)

    Energy Savings Plus Health: Indoor Air Quality Guidelines for School Building Upgrades ENERGY STAR Webinar: Energy Savings Plus Health: Indoor Air Quality Guidelines for School...

  19. TEAMS: Indoor Air Quality (IAR) Program 

    E-Print Network [OSTI]

    Melton, V.

    2008-01-01

    The Carrollton-Farmers Branch Independent School District (“CFBISD”) found the need to reduce air quality concerns and complaints, and find an effective and efficient method to reduce the rising cost of utilities. An Indoor Air Quality (IAQ) program...

  20. inAir: Sharing Indoor Air Quality Measurements and Visualizations

    E-Print Network [OSTI]

    Mankoff, Jennifer

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

  1. inAir: Sharing Indoor Air Quality Measurements and Visualizations

    E-Print Network [OSTI]

    Paulos, Eric

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

  2. An Innovative Reactor Technology to Improve Indoor Air Quality

    SciTech Connect (OSTI)

    Rempel, Jane [TIAX LLC., Lexington, MA (United States)

    2013-03-30

    As residential buildings achieve tighter envelopes in order to minimize energy used for space heating and cooling, accumulation of indoor air pollutants such as volatile organic compounds (VOCs), becomes a major concern causing poor air quality and increased health risks. Current VOC removal methods include sorbents, ultraviolet photocatalytic oxidation (UVPCO), and increased ventilation, but these methods do not capture or destroy all VOCs or are prohibitively expensive to implement. TIAX's objective in this program was to develop a new VOC removal technology for residential buildings. This novel air purification technology is based on an innovative reactor and light source design along with UVPCO properties of the chosen catalyst to purify indoor air and enhance indoor air quality (IAQ). During the program we designed, fabricated and tested a prototype air purifier to demonstrate its feasibility and effectiveness. We also measured kinetics of VOC destruction on photocatalysts, providing deep insight into reactor design.

  3. Indoor Air Quality Poor indoor air quality can cause a stuffy nose, sore throat,

    E-Print Network [OSTI]

    products such as cleaners and bug sprays » Outdoor air pollution from factories, vehicles, wildfires allergies may have severe reactions. Common Indoor Air Pollutants Poor indoor air quality comes from many have asthma triggered by outdoor air pollution or pollen, opening windows might not be a good idea

  4. Improve Indoor Air Quality, Energy Consumption and Building Performance: Leveraging Technology to Improve All Three 

    E-Print Network [OSTI]

    Wiser, D.

    2011-01-01

    suburban-- locations, outdoor air is actually far more polluted than indoor air. Appropriate application of air cleaning technologies and monitoring can allow many buildings to achieve both improved IAQ and lower operating costs....

  5. Indoor Air Quality Forms 195 Building: _________________________________________________________ File Number: ________________________________

    E-Print Network [OSTI]

    Indoor Air Quality Forms 195 Building in relation to indoor air quality. Page 1 of 14 Needs Attention Not ApplicableOKComponent Comments Outside Air Screen Unobstructed? General condition? Size of mesh? (1 /2" minimum) Outside Air Dampers Operation

  6. COMBUSTION-GENERATED INDOOR AIR POLLUTION

    E-Print Network [OSTI]

    Hollowell, C.D.

    2010-01-01

    x A Emission Characteristics in Two Stage Combustion. PaperInternational) on Combustion, Tokyo (August, 1974). Chang,fll , J I ___F J "J LBL-S9lS COMBUSTION-GENERATED INDOOR AIR

  7. Operation & Maintenance for Quality Indoor Air 

    E-Print Network [OSTI]

    Downing, C.; Bayer, C. W.

    1990-01-01

    The results of numerous Indoor Air Quality (IAQ) building investigations conducted by the Georgia Tech Research Institute have shown that building Operation and Maintenance (O&M) is a very common source of IAQ problems. This paper presents...

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

    E-Print Network [OSTI]

    Cairns, Elton J.

    2011-01-01

    Traynor, "Combustion-Generated Indoor Air Pollution," LBL-of combustion-generated indoor air pollution concluded thatTraynor, Combustion- Generated Indoor Air Pollution; April,

  9. IMPACT OF REDUCED INFILTRATION AND VENTILATION ON INDOOR AIR QUALITY IN RESIDENTIAL BUILDINGS

    E-Print Network [OSTI]

    Hollowell, Craig D.

    2011-01-01

    G.W. , "Combustion-Generated Indoor Air Pollution," LBLfocused on combustion-generated indoor air pollution, namelyimpact of combustion-generated indoor air pollution on human

  10. Classification of dwellings into profiles regarding indoor air quality, and identification of indoor air pollution determinant factors

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of indoor air pollution determinant factors Jean-Baptiste Masson1,2 * , Gérard Govaert2 , Corinne Mandin1 representing different types of indoor air pollution. We restrain to the 20 variables corresponding to indoorClassification of dwellings into profiles regarding indoor air quality, and identification

  11. High Performance Indoor Air Quality Specification for Net Zero Energy Homes

    E-Print Network [OSTI]

    High Performance Indoor Air Quality Specification for Net Zero Energy Homes White + GreenSpec SHEET PHOTOVOLTAIC PANELS #12;High Performance Indoor Air Quality Specification for Net Zero Energy Homes NIST GCR 14 Division provides scientific leadership to help the U.S. achieve its vision of net zero energy (NZE

  12. Indoor air quality in French dwellings Sverine Kirchner1,*

    E-Print Network [OSTI]

    Boyer, Edmond

    on Indoor Air Quality (OQAI) aims at collecting data on population exposure to indoor pollutants in various INTRODUCTION Our lack of understanding of the health risks related to air pollutants exposure in buildingsIndoor air quality in French dwellings Séverine Kirchner1,* , Mickael Derbez1 , Cédric Duboudin2

  13. Indoor air and human health: major indoor air pollutants and their health implications

    SciTech Connect (OSTI)

    Not Available

    1984-01-01

    This publication is a collection of abstracts of papers presented at the Indoor Air and Human Health symposium. Session titles include: Radon, Microorganisms, Passive Cigarette Smoke, Combustion Products, Organics, and Panel and Audience Discussion.

  14. Equivalence in Ventilation and Indoor Air Quality

    SciTech Connect (OSTI)

    Sherman, Max; Walker, Iain; Logue, Jennifer

    2011-08-01

    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.

  15. Factors Analysis on Safety of Indoor Air Quality 

    E-Print Network [OSTI]

    Luo, Q.; Liu, Z.; Xiong, J.

    2006-01-01

    Influence factors on safety of indoor air quality (IAQ) were analyzed in this paper. Some regeneration compositions resulting from potential indoor chemical reactions may be more harmful to habitants. A few building flaws may be key factors...

  16. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    Swainson, M. (2009). Indoor air quality in highly energyClayton, R. (2001). Indoor air quality: Residential cookingSacramento, CA: California Air Resources Board. Fugler, D. ,

  17. Effectiveness of Houseplants in Reducing the Indoor Air Pollutant Ozone

    E-Print Network [OSTI]

    Decoteau, Dennis R.

    Effectiveness of Houseplants in Reducing the Indoor Air Pollutant Ozone Heather L. Papinchak1 , E for their species effectiveness in reducing ozone concentrations in a simulated indoor environment. Continuously supply system were used to simulate an indoor environment in which ozone concentrations could be measured

  18. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    1989). Residential indoor air quality and energy efficiency.book Residential Indoor Air Quality and Energy Efficiency by2009). Indoor air quality in highly energy efficient homes—A

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

    E-Print Network [OSTI]

    Young, Rodger A.

    2013-01-01

    UC-95d INDOOR AIR QUALITY AND ENERGY EFFICIENT VENTILATIONVentilation on Indoor Air Quality and Energy Use in Schoo s,EEB~Vent INDOOR AIR QUALITY AND ENERGY EFFICIENT VENTILATION

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

    E-Print Network [OSTI]

    Logue, J.M.

    2012-01-01

    Indoor Air Quality Benefits and Energy Costs of MechanicalIndoor Air Quality Benefits and Energy Costs of MechanicalIndoor Air Quality Benefits and Energy Costs of Mechanical

  1. Indoor air quality control for improving passenger health in subway platforms using an outdoor air quality dependent ventilation system

    E-Print Network [OSTI]

    Indoor air quality control for improving passenger health in subway platforms using an outdoor air online 19 May 2015 Keywords: Ventilation control system Indoor air quality Indoor air pollution control Outdoor air quality Passenger health promotion Ventilation energy a b s t r a c t Indoor air quality (IAQ

  2. ORIGINAL ARTICLE Dispersal in microbes: fungi in indoor air are

    E-Print Network [OSTI]

    ORIGINAL ARTICLE Dispersal in microbes: fungi in indoor air are dominated by outdoor air and show Department of Plant and Microbial Biology, University of California, Berkeley, CA, USA The indoor microbiome is a complex system that is thought to depend on dispersal from the outdoor biome and the occupants' microbiome

  3. Assessment of Indoor Air Quality Benefits and Energy Costs of

    E-Print Network [OSTI]

    Assessment of Indoor Air Quality Benefits and Energy Costs of Mechanical Ventilation J.M.Logue1,P Quality Benefits and Energy Costs of Mechanical Ventilation LBNL-4945E Disclaimer This document.H. Sherman, B.C. Singer, Assessment of Indoor Air Quality Benefits and Energy Costs of Mechanical Ventilation

  4. Office of radiation and indoor air: Program description

    SciTech Connect (OSTI)

    Not Available

    1993-06-01

    The goal of the Environmental Protection Agency`s (EPA) Office of Radiation and Indoor Air is to protect the public and the environment from exposures to radiation and indoor air pollutants. The Office develops protection criteria, standards, and policies and works with other programs within EPA and other agencies to control radiation and indoor air pollution exposures; provides technical assistance to states through EPA`s regional offices and other agencies having radiation and indoor air protection programs; directs an environmental radiation monitoring program; responds to radiological emergencies; and evaluates and assesses the overall risk and impact of radiation and indoor air pollution. The Office is EPA`s lead office for intra- and interagency activities coordinated through the Committee for Indoor Air Quality. It coordinates with and assists the Office of Enforcement in enforcement activities where EPA has jurisdiction. The Office disseminates information and works with state and local governments, industry and professional groups, and citizens to promote actions to reduce exposures to harmful levels of radiation and indoor air pollutants.

  5. Health Hazards in Indoor Air J.M. Logue, M. H. Sherman, B.C. Singer

    E-Print Network [OSTI]

    Health Hazards in Indoor Air J.M. Logue, M. H. Sherman, B.C. Singer5250E #12;Logue et al, Health Hazards in Indoor air LBNL5250E Health Hazards in Indoor Air J, Singer BC, 2010 Health Hazards in Indoor Air. In Proceedings of the 2010 31st AIVC Conference, Low Energy

  6. Indoor airPLUS Version 1 (Rev. 01) Verification Checklist

    Broader source: Energy.gov [DOE]

    The Rev. 01 checklist has been modified to reflect only the additional Indoor airPLUS requirements and their corresponding section numbers that must be met after completing the ENERGY STAR checklists.

  7. Clean-up of Contaminated Indoor Air Using Photocatalytic Technology 

    E-Print Network [OSTI]

    Hingorani, S.; Greist, H.; Goswami, T.; Goswami, Y.

    2000-01-01

    to be completely effective. Dark control experiments were performed for each condition to confirm the validity of each experiment. The photocatalytic technology tested in these experiments was demonstrated to completely oxidize acetone at normal indoor air...

  8. COMBUSTION-GENERATED INDOOR AIR POLLUTION

    E-Print Network [OSTI]

    Hollowell, C.D.

    2011-01-01

    Pollutants from Indoor Combustion Sources: I. Field Measure-Characteristics in Two Stage Combustion, paper presented atInternational) on Combustion, August, 1974, Tokyo, Japan. 8

  9. Optimal Indoor Air Temperature Considering Energy Savings and Thermal Comfort in the Shanghai Area 

    E-Print Network [OSTI]

    Yao, Y.; Lian, Z.; Hou, Z.; Liu, W.

    2006-01-01

    Indoor air temperature is the most important control parameter in air conditioning systems. It not only impacts the thermal comfort of occupants, but also also greatly affects the energy consumption in air conditioning systems. The lower the indoor...

  10. DOE ZERH Webinar: Ventilation and Filtration Strategies with Indoor airPLUS

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Indoor airPLUS qualification, a prerequisite for Zero Energy Ready Homes, offers an important platform to improve the indoor air quality (IAQ) in high-performance homes. A critical aspect of...

  11. Model Reduction for Indoor-Air Behavior in Control Design for Energy-Efficient Buildings

    E-Print Network [OSTI]

    Gugercin, Serkan

    Model Reduction for Indoor-Air Behavior in Control Design for Energy-Efficient Buildings Jeff models for the indoor-air environment in control design for energy efficient buildings. In one method by a desire to incorporate models of the indoor-air environment in the design of energy efficient buildings

  12. Modeling VOC sorption of building materials and its impact on indoor air quality

    E-Print Network [OSTI]

    Zhang, Jinsong, 1975-

    2001-01-01

    Sorption of volatile organic compounds (VOCs) by building materials can have significant effect on the indoor VOC concentration levels and indoor air quality in buildings. The objective of this study was to investigate ...

  13. Exposure to formaldehyde in indoor air

    SciTech Connect (OSTI)

    Gammage, R.B. )

    1990-01-01

    Trends in formaldehyde concentrations to which residents are exposed are reviewed, as are the means for assessing these exposures. Concentrations as high as a few ppm encountered in manufactured housing during the 1970s were eliminated after the Housing and Urban Development (HUD) 1984 ruling came into effect. The pressed-wood product industry, and its trade organizations, have made concerted efforts to comply with the ruling. Moreover, they have imposed additional voluntary product standards upon themselves intended to be applicable to a range of pressed-wood products wider than that defined in the HUD standard. Quarterly product testing on arbitrarily selected products shows a general lowering of emission rates with only a few percent of products now being above the HUD level. Measurement of ambient indoor levels of formaldehyde has been largely replaced by testing to assure conformance to product standards. The lower-emitting products on the market, if used in mobile home construction and furnishing, will expectantly produce formaldehyde levels not exceeding 0.1 ppm, except under conditions of unusually high temperature and humidity. Recent studies implicate household dust as a significant carrier of bound formaldehyde. In a few instances, old urea-formaldehyde cavity wall insulation has become friable and particles have blown into living areas. Future health assessments might need to consider this additional pathway of potential exposure.

  14. Indoor Air Quality Observations in Public Schools 

    E-Print Network [OSTI]

    McClure, J. D.; Estes, J. M.

    1990-01-01

    pressurize the crawl space. Sane of the llnderfloor fans were not opera* (failed) an3 this results in mist ~OQI: air flawing into the building through the apenFngs in the pip* chases anl aperative underfloor fan ducts. Turn off the underfloar fans, sedl...

  15. Quantification of Ozone Levels in Indoor Environments Generated by Ionization and Ozonolysis Air Purifiers

    E-Print Network [OSTI]

    Nizkorodov, Sergey

    Quantification of Ozone Levels in Indoor Environments Generated by Ionization and Ozonolysis Air ozone (O3) during operation, either in- tentionally or as a byproduct of air ionization standards. Sev- eral types of air purifiers were tested for their ability to produce ozone in various indoor

  16. MAQS: A Personalized Mobile Sensing System for Indoor Air Quality Monitoring

    E-Print Network [OSTI]

    Dick, Robert

    -Fi fingerprints; (2) an air exchange rate based IAQ sensing method, which measures general IAQ using only CO2MAQS: A Personalized Mobile Sensing System for Indoor Air Quality Monitoring Yifei Jiang , Kun Li,omkar}@umich.edu, § dickrp@eecs.umich.edu ABSTRACT Most people spend more than 90% of their time in- doors; indoor air

  17. Combustion Safety for Appliances Using Indoor Air (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-05-01

    This measure guideline covers how to assess and carry out the combustion safety procedures for appliances and heating equipment that uses indoor air for combustion in low-rise residential buildings. Only appliances installed in the living space, or in an area freely communicating with the living space, vented alone or in tandem with another appliance are considered here. A separate measure guideline addresses combustion appliances located either within the living space in enclosed closets or side rooms or outside the living space in an adjacent area like an attic or garage that use outdoor air for combustion. This document is for inspectors, auditors, and technicians working in homes where energy upgrades are being conducted whether or not air infiltration control is included in the package of measures being applied. In the indoor combustion air case, guidelines summarized here are based on language provided in several of the codes to establish minimum requirements for the space using simplified prescriptive measures. In addition, building performance testing procedures are provided by testing agencies. The codes in combination with the test procedures offer comprehensive combustion safety coverage to address safety concerns, allowing inexperienced residential energy retrofit inspectors to effectively address combustion safety issues and allow energy retrofits to proceed.

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

    Energy Savers [EERE]

    ASHRAE Standard 62.2. Ventilation and Acceptable Indoor Air Quality in Low- Rise Residential Buildings - Building America Top Innovation ASHRAE Standard 62.2. Ventilation and...

  19. Factors Affecting Indoor Air Concentrations of Volatile Organic Compounds at a Site of Subsurface Gasoline Contamination

    E-Print Network [OSTI]

    Fischer, M.L.

    2011-01-01

    OF SUBSURFACE GASOLINE CONTAMINATION Marc L. Fischer, AbraOF SUBSURFACE GASOLINE CONTAMINATION Marc L. Fischer, Abrareporting indoor air contamination (6,7). Estimation of

  20. EIS-0127: New Energy-Efficient Homes Programs, Assessing Indoor Air Quality Options

    Broader source: Energy.gov [DOE]

    The Bonneville Power Administration developed this EIS to explore whether different building techniques will control indoor air quality and still maintain cost-effective energy savings.

  1. Pre-clinical Measures of Eye Damage (Lens Opacity), Case-control Study of Tuberculosis, and Indicators of Indoor Air Pollution from Biomass Smoke

    E-Print Network [OSTI]

    Pokhrel, Amod Kumar

    2010-01-01

    Indoor air pollution from biomass combustion and acutekerosene fuel combustion Indoor air pollution from biomasscombustion emits naphthalene [44, 46, 83, 84] and formaldehyde [42, 45, 85]. In the indoor air pollution

  2. Air temperature thresholds for indoor comfort and perceived air quality

    E-Print Network [OSTI]

    Zhang, Hui; Edward, Arens; Pasut, Wilmer

    2012-01-01

    caused by office's thermal Environment, J. Archit. Plann.Standard 55- 2010. Thermal environment conditions for humanindoor air quality, thermal environment, lighting and

  3. Ventilation System Effectiveness and Tested Indoor Air Quality Impacts

    SciTech Connect (OSTI)

    Rudd, A.; Bergey, D.

    2014-02-01

    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.

  4. Ventilation System Effectiveness and Tested Indoor Air Quality Impacts

    SciTech Connect (OSTI)

    Rudd, Armin; Bergey, Daniel

    2014-02-01

    In this project, Building America research team Building Science Corporation tested the effectiveness of ventilation systems 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. This was 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.

  5. Method, system and apparatus for monitoring and adjusting the quality of indoor air

    DOE Patents [OSTI]

    Hartenstein, Steven D.; Tremblay, Paul L.; Fryer, Michael O.; Hohorst, Frederick A.

    2004-03-23

    A system, method and apparatus is provided for monitoring and adjusting the quality of indoor air. A sensor array senses an air sample from the indoor air and analyzes the air sample to obtain signatures representative of contaminants in the air sample. When the level or type of contaminant poses a threat or hazard to the occupants, the present invention takes corrective actions which may include introducing additional fresh air. The corrective actions taken are intended to promote overall health of personnel, prevent personnel from being overexposed to hazardous contaminants and minimize the cost of operating the HVAC system. The identification of the contaminants is performed by comparing the signatures provided by the sensor array with a database of known signatures. Upon identification, the system takes corrective actions based on the level of contaminant present. The present invention is capable of learning the identity of previously unknown contaminants, which increases its ability to identify contaminants in the future. Indoor air quality is assured by monitoring the contaminants not only in the indoor air, but also in the outdoor air and the air which is to be recirculated. The present invention is easily adaptable to new and existing HVAC systems. In sum, the present invention is able to monitor and adjust the quality of indoor air in real time by sensing the level and type of contaminants present in indoor air, outdoor and recirculated air, providing an intelligent decision about the quality of the air, and minimizing the cost of operating an HVAC system.

  6. Investigation and Analysis of the Indoor Air Environment of a Large-scale Art Exhibition Hall in Beijing 

    E-Print Network [OSTI]

    Hao, X.; Cao, G.; Wang, Y.; Wang, J.

    2006-01-01

    Adopting the method of locale measurement and subjective appraisal, this paper presents a synthesized investigation and analysis of both the indoor thermal and humid indices and the air quality of a specific exhibition hall in Beijing. Indoor air...

  7. Ris-M-2476 RELATIONSHIPS IN INDOOR/OUTDOOR AIR POLLUTION

    E-Print Network [OSTI]

    Risø-M-2476 RELATIONSHIPS IN INDOOR/OUTDOOR AIR POLLUTION Jørn Roed Abstract. Beryllium-7 the pollution episode and airing shortly after is also investigated. Earlier relevant literature is reviewed descriptors; AEROSOLS; AIR FILTERS; AIR POLLUTION; AIR QUALITY; BUILDINGS; CONTAMINATION; DEPOSITION

  8. Efficient Probabilistic Localization for Autonomous Indoor Airships using Sonar, Air Flow, and IMU Sensors

    E-Print Network [OSTI]

    Teschner, Matthias

    Efficient Probabilistic Localization for Autonomous Indoor Airships using Sonar, Air Flow, and IMU, {muellerj, burgard}@informatik.uni-freiburg.de Abstract In recent years, autonomous miniature airships have navigation, sonar, IMU 1 Introduction Miniature airships as autonomous mobile systems for indoor navigation

  9. Indoor-Outdoor Air Leakage of Apartments and Commercial Buildings

    SciTech Connect (OSTI)

    Price, P.N.; Shehabi, A.; Chan, R.W.; Gadgil, A.J.

    2006-06-01

    We compiled and analyzed available data concerning indoor-outdoor air leakage rates and building leakiness parameters for commercial buildings and apartments. We analyzed the data, and reviewed the related literature, to determine the current state of knowledge of the statistical distribution of air exchange rates and related parameters for California buildings, and to identify significant gaps in the current knowledge and data. Very few data were found from California buildings, so we compiled data from other states and some other countries. Even when data from other developed countries were included, data were sparse and few conclusive statements were possible. Little systematic variation in building leakage with construction type, building activity type, height, size, or location within the u.s. was observed. Commercial buildings and apartments seem to be about twice as leaky as single-family houses, per unit of building envelope area. Although further work collecting and analyzing leakage data might be useful, we suggest that a more important issue may be the transport of pollutants between units in apartments and mixed-use buildings, an under-studied phenomenon that may expose occupants to high levels of pollutants such as tobacco smoke or dry cleaning fumes.

  10. Impact of domestic woodburning appliances on indoor air quality Corinne Mandin1

    E-Print Network [OSTI]

    Boyer, Edmond

    air pollution study (CITEPA), France * Corresponding email: Eva.Leoz@ineris.fr SUMMARY Data pollutants in ambient air. Consequently our study aims at describing both emission factors and inerisImpact of domestic woodburning appliances on indoor air quality Corinne Mandin1 , Jacques Ribéron2

  11. Development of a modeling framework to predict indoor air concentrations of semivolatile organic compounds

    SciTech Connect (OSTI)

    Van Loy, M.D.; Nazaroff, W.W. [Univ. of California, Berkeley, CA (United States). Dept. of Civil and Environmental Engineering; Daisey, J.M. [Lawrence Berkeley National Lab., CA (United States). Environmental and Energy Technologies Div.

    1998-12-31

    Semivolatile organic compounds (SVOCs) are an important but largely unstudied class of indoor air pollutants. SVOCs have been well-studied as outdoor air pollutants, but much less effort has been focused on understanding the factors affecting their concentrations in indoor air. Because of these compounds` low (10-6 to 10 Pa at room temperature) vapor pressures, they readily partition into condensed phases from the gas phase. In outdoor air, this phenomenon is important as a source of secondary organic aerosol and as a mechanism for long range transport and persistence of SVOCs in the atmosphere as particle-phase species. Indoor environments include another potential condensed phase besides the airborne particle phase: surface materials such as carpet, wallboard, upholstery, ceiling tiles, linoleum, and many others. Adsorption to these materials has a markedly different effect on indoor contaminant concentrations because the condensed phase is stationary. Unlike the airborne particle phase, for which ventilation is a significant removal mechanism, the only significant pathway for removal of reversibly sorbed pollutants from the indoor environment is desorption into the gas phase followed by ventilation. Because buildings generally have a large surface area to gas-phase volume ratio, the net removal of SVOCs from the indoor environment via this mechanism is likely to be very slow. Compounds re-emitted from one surface are likely to quickly re-absorb to another. This paper presents an analysis of the factors affecting indoor concentrations of SVOCs including ventilation, gas-particle partitioning, gas phase sorption on indoor surfaces, particle deposition, and oxidative radical chemistry and estimates their relative importance to facilitate simplification of numerical simulations of indoor pollutant concentrations.

  12. Impact of ozone on indoor air quality: a preliminary field study M. Nicolas, O. Ramalho, F. Maupetit

    E-Print Network [OSTI]

    Boyer, Edmond

    indoor air quality (IAQ) since they produce secondary pollutants, mainly aldehydes which are known to document the impact on IAQ of outdoor ozone during summer air pollution episodes. For this purpose, a oneImpact of ozone on indoor air quality: a preliminary field study M. Nicolas, O. Ramalho, F

  13. Study of building material emissions and indoor air quality

    E-Print Network [OSTI]

    Yang, Xudong, 1966-

    1999-01-01

    Building materials and furnishings emit a wide variety of indoor pollutants, such as volatile organic compounds (VOCs). At present, no accurate models are available to characterize material emissions and sorption under ...

  14. Advanced Technology for Economical Dehumidification to Improve Indoor Air Quality 

    E-Print Network [OSTI]

    Beckwith, W. R.

    1996-01-01

    High humidity can have a detrimental effect on many aspects of indoor environments. Building materials, books, and records deteriorate more rapidly in humidity levels above 60% due to biodegradation. High humidity increases electrical costs...

  15. Impacts of contaminant storage on indoor air quality: Model developmen...

    Office of Scientific and Technical Information (OSTI)

    A first-order, lumped capacitance model is used to describe the buffering of airborne chemical species by building materials and furnishings in the indoor environment. The model is...

  16. Polycyclic Aromatic Hydrocarbons in Indoor Air and Environmental Tobacco Smoke Measured with a New Integrated Organic Vapor-Particle Sampler

    E-Print Network [OSTI]

    Gundel, L.A.; Daisey, J.M.; Mahanama, K.R.R.; Lee, C.C.; Stevens, R.K.

    1993-01-01

    of polycyclic aromatic hydrocarbons in environmental tobaccoof polycyclic aromatic hydrocarbons. Indoor Air 1991;1:497-NK. Polycyclic aromatic hydrocarbons and their derivatives

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

    E-Print Network [OSTI]

    Mohamed, E.; Abdalla, K. N.

    2010-01-01

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

  18. Improving Indoor Air Quality Improves the Performance of Office Work and School Work 

    E-Print Network [OSTI]

    Wargocki, P.

    2008-01-01

    strong incentive for providing indoor air of a quality that is better than the minimum levels required by present standards. IAQ can be improved by reducing the pollution load on the air by selecting low-polluting building and furnishing materials...

  19. Building Air Quality Alliance Program fro Building Management 

    E-Print Network [OSTI]

    Kettler, G. J.

    1998-01-01

    IAQ increases. EPA studies rank indoor air pollution among the top five risks of environmental threats to public health. Guidance on achieving acceptable air quality and on preventing indoor air pollution is available. The 199 1 EPAMIOSH guide...

  20. JV Task 86 - Identifying the Source of Benzene in Indoor Air Using Different Compound Classes from TO-15 Data

    SciTech Connect (OSTI)

    Steven B. Hawthorne

    2007-04-15

    Volatile organic compound (VOC) data that had already been collected using EPA method TO-15 at four different sites under regulatory scrutiny (a school, strip mall, apartment complex, and business/residential neighborhood) were evaluated to determine whether the source of indoor air benzene was outdoor air or vapor intrusion from contaminated soil. Both the use of tracer organics characteristic of different sources and principal component statistical analysis demonstrated that the source of indoor air at virtually all indoor sampling locations was a result of outdoor air, and not contaminated soil in and near the indoor air-sampling locations. These results show that proposed remediation activities to remove benzene-contaminated soil are highly unlikely to reduce indoor air benzene concentrations. A manuscript describing these results is presently being prepared for submission to a peer-reviewed journal.

  1. Impacts of Mixing on Acceptable Indoor Air Quality in Homes

    E-Print Network [OSTI]

    Indoor Environment Department Energy Performance of Buildings Group Berkeley, CA 94720 January 2010 This work was supported by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of the BuildingTechnologies Program, U.S. Department of Energy under ontract

  2. Environmental Health Perspectives VOLUME 109 | NUMBER 5 | May 2001 481 Quantifying the Effects of Exposure to Indoor Air Pollution from Biomass

    E-Print Network [OSTI]

    Kammen, Daniel M.

    of Exposure to Indoor Air Pollution from Biomass Combustion on Acute Respiratory Infections in Developing to indoor air pollution, especially to particulate matter, from the combustion of biofuels (wood, charcoal to indoor air pollution high on the agenda of international development and public health organizations (10

  3. Weatherization and Indoor Air Quality: Measured Impacts in Single Family Homes Under the Weatherization Assistance Program

    SciTech Connect (OSTI)

    Pigg, Scott; Cautley, Dan; Francisco, Paul; Hawkins, Beth A; Brennan, Terry M

    2014-09-01

    This report summarizes findings from a national field study of indoor air quality parameters in homes treated under the Weatherization Assistance Program (WAP). The study involved testing and monitoring in 514 single-family homes (including mobile homes) located in 35 states and served by 88 local weatherization agencies.

  4. Comfort, Indoor Air Quality, and Energy Consumption in Low Energy Homes

    SciTech Connect (OSTI)

    Englemann, P.; Roth, K.; Tiefenbeck, V.

    2013-01-01

    This report documents the results of an in-depth evaluation of energy consumption and thermal comfort for two potential net zero-energy homes (NZEHs) in Massachusetts, as well as an indoor air quality (IAQ) evaluation performed in conjunction with Lawrence Berkeley National Laboratory (LBNL).

  5. The Effects of Indoor Air Velocity on Occupant Thermal Comfort in Winter 

    E-Print Network [OSTI]

    Wang, J.; Chen, L.

    2006-01-01

    In China the thermal comfort standard that regulates the indoor air velocity cannot exceed 0.15m/s in winter. But many scholars doubt this regulation. This paper presents the results of an experimental research project on thermal comfort...

  6. Assessing and Modeling Exposure to Indoor Air Pollution among Rural Women in Guatemala

    E-Print Network [OSTI]

    Assessing and Modeling Exposure to Indoor Air Pollution among Rural Women in Guatemala Lisa pollution in rural areas of developing countries. It is estimated that about half (53%) of all households in the poor countries of Latin American use biofuels (wood, dung and/or crop residues) to cook. Combustion by

  7. Investigating the photo-oxidation of model indoor air pollutants using field asymmetric ion mobility spectrometry

    E-Print Network [OSTI]

    Ireland, Christopher P.; Ducati, Caterina

    2015-01-01

    and Photobiology A.pdf.txt Content-Type text/plain; charset=UTF-8 1 Investigating the photo-oxidation of model indoor air pollutants using field asymmetric ion mobility spectrometry Christopher P. Ireland* and Caterina Ducati Department of Materials... such as deodorizers or floor cleaners, removal of these is a key priority, particularly as many VOCs are known to be mutagenic or carcinogenic [11]. Whilst air purification techniques such as filtration via activated carbon [12] or thermal advanced oxidation processes...

  8. Air cleaners for indoor-air-pollution control (Chapter 10). Book chapter, Feb 89-Jul 90

    SciTech Connect (OSTI)

    Viner, A.S.; Ramanathan, K.; Hanley, J.T.; Smith, D.D.; Ensor, D.S.

    1991-01-01

    The chapter describes an experimental study to evaluate performance characteristics of currently available controls for indoor air pollutants, including both particles and gases. The study evaluated the particle-size-dependent collection efficiency of seven commercially available devices for particulate control: a common furnace filter, four industrial filters, and two electronic air cleaners (EACs). The furnance filter had negligible effect on particles with diameters between 0.1 and 1 micrometer. The industrial filters, with ASHRAE ratings of 95, 85, 65, and 40% showed minimum efficiency at about 0.1 micrometer, which was substantially less than the ASHRAE efficiency. One EAC, essentially a furnance filter with a high-voltage electrode, reached a maximum efficiency of 30% at low flowrates (7 cu m/min); however, it had a negligible effect at higher flowrates. The other EAC, similar to an industrial ESP, showed efficiencies of 80-90% over the entire size range at low to moderate flowrates. At the highest flowrate, a minimum efficiency was detected at 0.35 micrometer. The study also evaluated the suitability of commerically available carbon-based sorbents (wood, coal, and coconut) for removing low concentrations of volatile organic compounds (benzene, acetaldehyde, and 1,1,1-trichloroethane).

  9. Building Efficiency and Indoor Air Quality - You Can Have Both 

    E-Print Network [OSTI]

    Kettler, G. J.

    1998-01-01

    , and run around loops. These methods can be used on some packaged equipment but is normally provided on makeup air units and central air supply systems. These built up units offer opportunities to combine heat recovery, special filtration, humidity control...

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

    SciTech Connect (OSTI)

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

    2011-07-01

    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.

  11. Monitoring indoor air quality in French schools and day-care centres. Results from the first phase of a pilot survey.

    E-Print Network [OSTI]

    Boyer, Edmond

    . KEYWORDS Air pollution, air stuffiness, formaldehyde, benzene. 1 INTRODUCTION Indoor air quality to determine an air stuffiness index as an indirect mean to assess pollutants accumulation in a closed spaceMonitoring indoor air quality in French schools and day-care centres. Results from the first phase

  12. INDOOR AIR QUALITY MEASUREMENTS IN ENERGY EFFICIENT BUILDINGS

    E-Print Network [OSTI]

    Hollowell, C.D.

    2011-01-01

    ROOF PORT HOLES AIR REGISTERS E8 XBL 7712-11473B Figure 3 - Schematic of Exterior and Interior of Energy Efficient

  13. Indoor Air Quality and Health in FEMA Temporary Housing

    E-Print Network [OSTI]

    within the trailers make air quality concerns worse. Who Is Most At Risk Poor air quality causes problems with asthma · People who have allergies · People who have chronic lung disease such as bronchitis or of asthma may benefit from symptomatic treatment. Health Study CDC will work with parents to study children

  14. Pre-clinical Measures of Eye Damage (Lens Opacity), Case-control Study of Tuberculosis, and Indicators of Indoor Air Pollution from Biomass Smoke

    E-Print Network [OSTI]

    Pokhrel, Amod Kumar

    2010-01-01

    Indoor air pollution from biomass fuels and respiratoryTuberculosis and Indoor Biomass and Kerosene Use in Nepal: AR.D. Retherford, and K.R. Smith, Biomass cooking fuels and

  15. IAQ in Hospitals - Better Health through Indoor Air Quality Awareness 

    E-Print Network [OSTI]

    Al-Rajhi, S.; Ramaswamy, M.; Al-Jahwari, F.

    2010-01-01

    the operator and the work by recirculating some of the air through a HEPA filter to provide a down-flow over the working area. Class 3 safety cabinets are totally enclosed units designed to provide a high degree of user protection. As mentioned above... of filters is 6mm WG.Fine filters can filter down to 5-micron size with efficiency of 99.9%. Pressure drop is 15 mm of W.G. High Efficiency Particulate Air (HEPA) filters down to 0.3-micron size. Pressure drop is in these type of filters is 50 mm...

  16. Application of receptor modeling to indoor air emissions from electroplating

    SciTech Connect (OSTI)

    Wadden, R.A.; Liao, S.L.; Scheff, P.A.; Franke, J.E.; Conroy, L.M. [Univ. of Illinois, Chicago, IL (United States). School of Public Health

    1998-12-01

    In work areas containing multiple sources of the same air pollutant, it is useful for control purposes to be able to separate out the contribution from each individual source. In this study, the chemical mass balance (CMB) receptor model was used to allocate the contributions from multiple sources to area concentration measurements in three electroplating shops. Shop 1 was a room with a single copper electroplating line; shop 2 was a large bay containing a chromium conversion coating line, a continuous chromium electroplating line, and several manual electroplating operations; shop 3 contained a piston chrome plating line, a decorative chrome plating line, and manual and barrel zinc coating lines. The receptor modeling approach uses the elemental composition of one or more source categories to determine what fraction of an area sample is contributed by each source. In most cases the CMB model predicted over 90% of the measured concentrations. The allocation procedure explained 100% of the copper measured at three locations in shop 1, with contributions of 95 to 98% from the plating line and the rest from air outside the room. For shop 2, a two-source model explained 100% of the chromium measured at five sampling locations. For shop 3, the percent contributions of chromium from the piston plating line and the decorative plating line were consistent with distance from each of the sources.

  17. A Hybrid Sensor System for Indoor Air Quality Monitoring Yun Xiang, Ricardo Piedrahita, Robert P. Dick, Michael Hannigan, Qin Lv, Li Shang

    E-Print Network [OSTI]

    Dick, Robert

    .shang}@colorado.edu Abstract--Indoor air quality is important. It influences human productivity and health. Personal pollution pollutant exposure is important. Currently, stationary and accurate air quality monitoring sen- sors [30A Hybrid Sensor System for Indoor Air Quality Monitoring Yun Xiang, Ricardo Piedrahita, Robert P

  18. Measure Guideline: Combustion Safety for Natural Draft Appliances Using Indoor Air

    SciTech Connect (OSTI)

    Brand, L.

    2014-04-01

    This measure guideline covers how to assess and carry out the combustion safety procedures for appliances and heating equipment that uses indoor air for combustion in low-rise residential buildings. Only appliances installed in the living space, or in an area freely communicating with the living space, vented alone or in tandem with another appliance are considered here. A separate measure guideline addresses combustion appliances located either within the living space in enclosed closets or side rooms or outside the living space in an adjacent area like an attic or garage that use outdoor air for combustion. This document is for inspectors, auditors, and technicians working in homes where energy upgrades are being conducted whether or not air infiltration control is included in the package of measures being applied. In the indoor combustion air case, guidelines summarized here are based on language provided in several of the codes to establish minimum requirements for the space using simplified prescriptive measures. In addition, building performance testing procedures are provided by testing agencies. The codes in combination with the test procedures offer comprehensive combustion safety coverage to address safety concerns, allowing inexperienced residential energy retrofit inspectors to effectively address combustion safety issues and allow energy retrofits to proceed.

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

    SciTech Connect (OSTI)

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

    2013-05-13

    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.

  20. Technology Solutions Case Study: Combustion Safety for Appliances Using Indoor Air

    SciTech Connect (OSTI)

    2014-05-01

    This case study describes how to assess and carry out the combustion safety procedures for appliances and heating equipment that uses indoor air for combustion in low-rise residential buildings. Only appliances installed in the living space, or in an area freely communicating with the living space, vented alone or in tandem with another appliance are considered here. This document is for inspectors, auditors, and technicians working in homes where energy upgrades are being conducted whether or not air infiltration control is included in the package of measures being applied. In the indoor combustion air case, guidelines summarized here are based on language provided in several of the codes to establish minimum requirements for the space using simplified prescriptive measures. In addition, building performance testing procedures are provided by testing agencies. The codes in combination with the test procedures offer comprehensive combustion safety coverage to address safety concerns, allowing inexperienced residential energy retrofit inspectors to effectively address combustion safety issues and allow energy retrofits to proceed.

  1. NIOSH (National Institute for Occupational Safety and Health) indoor air quality in office buildings

    SciTech Connect (OSTI)

    Wallingford, K.M.

    1987-01-01

    A total of 356 indoor-air-quality health-hazard evaluations were completed by NIOSH from 1971 through December of 1985. Most of these studies concerned government and private office buildings where there were worker complaints. Worker complaints resulted from contamination from inside the building (19% of the cases), contamination from outside (11 percent), contamination from the building fabric (4%), biological contamination (5%), inadequate ventilation (50%), and unknown causes (11%). Health complaints addressed by investigative efforts included eye irritation, dry throat, headache, fatigue, sinus congestion, skin irritation, shortness of breath, cough, dizziness, and nausea.

  2. Gosselin, J.R. and Chen, Q. 2008. "A dual airflow window for indoor air quality improvement and energy conservation in buildings," HVAC&R Research, 14(3), 359-372.

    E-Print Network [OSTI]

    Chen, Qingyan "Yan"

    and energy conservation in buildings," HVAC&R Research, 14(3), 359-372. A Dual Airflow Window for Indoor Air with exhausted indoor air. The energy needed to condition outdoor air is reduced because of the counterflow heat, the dual airflow window has a great potential for conserving energy and improving indoor air quality

  3. Indoor Air Nuclear, Biological, and Chemical Health Modeling and Assessment System

    SciTech Connect (OSTI)

    Stenner, Robert D.; Hadley, Donald L.; Armstrong, Peter R.; Buck, John W.; Hoopes, Bonnie L.; Janus, Michael C.

    2001-03-01

    Indoor air quality effects on human health are of increasing concern to public health agencies and building owners. The prevention and treatment of 'sick building' syndrome and the spread of air-borne diseases in hospitals, for example, are well known priorities. However, increasing attention is being directed to the vulnerability of our public buildings/places, public security and national defense facilities to terrorist attack or the accidental release of air-borne biological pathogens, harmful chemicals, or radioactive contaminants. The Indoor Air Nuclear, Biological, and Chemical Health Modeling and Assessment System (IA-NBC-HMAS) was developed to serve as a health impact analysis tool for use in addressing these concerns. The overall goal was to develop a user-friendly fully functional prototype Health Modeling and Assessment system, which will operate under the PNNL FRAMES system for ease of use and to maximize its integration with other modeling and assessment capabilities accessible within the FRAMES system (e.g., ambient air fate and transport models, water borne fate and transport models, Physiologically Based Pharmacokinetic models, etc.). The prototype IA-NBC-HMAS is designed to serve as a functional Health Modeling and Assessment system that can be easily tailored to meet specific building analysis needs of a customer. The prototype system was developed and tested using an actual building (i.e., the Churchville Building located at the Aberdeen Proving Ground) and release scenario (i.e., the release and measurement of tracer materials within the building) to ensure realism and practicality in the design and development of the prototype system. A user-friendly "demo" accompanies this report to allow the reader the opportunity for a "hands on" review of the prototype system's capability.

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

    SciTech Connect (OSTI)

    Washington State Energy Code Program

    1992-05-01

    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.

  5. Environmental Health Perspectives VOLUME 110 | NUMBER 11 | November 2002 1057 The Health Impacts of Exposure to Indoor Air Pollution from Solid Fuels in

    E-Print Network [OSTI]

    Kammen, Daniel M.

    of Exposure to Indoor Air Pollution from Solid Fuels in Developing Countries: Knowledge, Gaps, and Data Needs and coal smoke contain a large number of pollutants and known health haz- ards, including particulate- cyclic organic matter, including carcinogens such as benzo[a]pyrene (5­9). Exposure to indoor air

  6. inAir: A Longitudinal study of Indoor Air Quality Measurements and Visualizations

    E-Print Network [OSTI]

    Chen, Yiling

    pollutants are colorless and odorless, while many activities are inconspicuous and routine. We implemented inAir. Among those, air pollution and its effects on health have been researched extensively over past several decades [13]. In particular, the health effects of air pollution cover a wide variety of respiratory

  7. Effect of residential air-to-air heat and moisture exchangers on indoor humidity

    SciTech Connect (OSTI)

    Barringer, C.G.; McGugan, C.A. )

    1989-01-01

    A project was undertaken to develop guidelines for the selection of residential heat and moisture recovery ventilation systems (HRVs) in order to maintain an acceptable indoor humidity for various climatic conditions. These guidelines were developed from reviews on ventilation requirements, HRV performance specifications, and from computer modeling. Space conditions within three house/occupancy models for several types of HRV were simulated for three climatic conditions (Lake Charles, LA; Seattle, WA; and Winnipeg, MB) in order to determine the impact of the HRVs on indoor relative humidity and space-conditioning loads. Results show that when reduction of cooling cost is the main consideration, exchangers with moisture recovery are preferable to sensible HRVs. For reduction of heating costs, moisture recovery should be done for ventilation rates greater than about 15 L/s and average winter temperatures less than about (minus) 10{degrees}C if internal moisture generation rates are low. For houses with higher ventilation rates and colder average winter temperatures, exchangers with moisture recovery should be used.

  8. Office of Radiation & Indoor Air EPA 402-R-05-009 Radiation Protection Division (6608J) August 2006

    E-Print Network [OSTI]

    Office of Radiation & Indoor Air EPA 402-R-05-009 Radiation Protection Division (6608J) August 2006) Radiation Protection Division works to address hazards posed by technologically enhanced naturally occurring #12;1 URANIUM LOCATION DATABASE COMPILATION Abstract The Environmental Protection Agency's (EPA

  9. Mechanistic modeling of the interrelationships between indoor/outdoor air quality and human exposure in a GIS framework

    SciTech Connect (OSTI)

    Isukapalli, S.S.; Purushothaman, V.; Georgopoulos, P.G.

    1999-07-01

    Evaluation of human exposure to atmospheric contaminants such as ozone and particulate matter (PM) is often based on measured data from fixed ambient (outdoors) Air Monitoring Stations. This results in an artificial characterization of indoor exposures, as concentrations and physicochemical attributes of indoor pollutants vary significantly and are different from corresponding outdoor values. A mechanistically-based modeling approach is presented here that aims to improve estimates for the outdoor/indoor relationships of photochemical pollutants and of associated fine particles and, subsequently, of human exposure assessments. New approaches for refining the spatial, temporal, and indoor/outdoor patterns of gas phase photochemical contaminants and PM are currently being developed and tested. These approaches are combined with information from either ambient monitoring networks or from ambient air quality models that consider aerosol physics and chemistry coupled with gas phase photochemistry (e.g. UAM-AERO). This process utilizes Geographic Information Systems (GIS) and Relational Database (RD) methods, to facilitate detailed exposure scenario construction (involving e.g. the geographic location of an individual considered in time) and to aid in the estimation of population exposure over selected geographic areas. The combination of monitor data or air quality modeling with microenvironmental modeling in a GIS framework can potentially provide a useful platform for more accurate assessments of human exposure to co-occurring gas and particulate phase air pollutants.

  10. Non-cancer effects of formaldehyde and relevance for setting an indoor air guideline Peder Wolkoff , Gunnar D. Nielsen

    E-Print Network [OSTI]

    Short, Daniel

    Review Non-cancer effects of formaldehyde and relevance for setting an indoor air guideline Peder 2010 Accepted 25 May 2010 Available online 16 June 2010 Keywords: Airways Asthma Children Formaldehyde Sensory irritation Susceptible subgroups There is considerable recent focus and concern about formaldehyde

  11. Indoor Air Quality of Weatherized Homes in the Northeast A Cornell University study, funded by the Alfred P. Sloan Foundation

    E-Print Network [OSTI]

    Angenent, Lars T.

    will be placed in the basement. Carbon dioxide CO2 tank and monitors: A CO2 tank will be placed in a first floor closet, and programmed to release CO2 gas four times a day for 15 minutes each time. Two CO2 monitorsIndoor Air Quality of Weatherized Homes in the Northeast A Cornell University study, funded

  12. The ORNL Indoor Air Quality Study: Re-cap, Context, and Assessment on Radon

    SciTech Connect (OSTI)

    Tonn, Bruce Edward; Rose, Erin M.; Ternes, Mark P.

    2015-10-01

    As part of the retrospective evaluation of the U.S. Department of Energy s low-income Weatherization Assistance Program that was led by Oak Ridge National Laboratory (ORNL), an assessment of the impacts of weatherization on indoor air quality (IAQ) was conducted. This assessment included nearly 500 treatment and control homes across the country. Homes were monitored for carbon monoxide, radon, formaldehyde, temperature and humidity pre- and post-weatherization. This report focuses on the topic of radon and addresses issues not thoroughly discussed in the original IAQ report. The size, scope and rigor of the radon component of the IAQ study are compared to previous studies that assessed the impacts of weatherization on indoor radon levels. It is found that the ORNL study is by far the most extensive study conducted to date, though the ORNL results are consistent with the findings of the other studies. However, the study does have limitations related to its reliance on short-term measurements of radon and inability to attribute changes in radon levels in homes post-weatherization to specific weatherization measures individually or in combination.

  13. Evaluation of a Combined Ultraviolet Photocatalytic Oxidation (UVPCO)/Chemisorbent Air Cleaner for Indoor Air Applications

    E-Print Network [OSTI]

    Hodgson, Alfred T.; Destaillats, Hugo; Hotchi, Toshifumi; Fisk, William J.

    2007-01-01

    of semiconductor photocatalysis. Chem. Rev. 1995, 95, 69-96.M.A. Evaluation of photocatalysis for gas-phase air

  14. Attic Air Sealing Guide - Building America Top Innovation | Department...

    Energy Savers [EERE]

    to achieving effective energy savings while avoiding pitfalls that can lead to combustion safety and indoor air quality issues. The widely disseminated, DOE-sponsored Guide...

  15. inAir: Measuring and Visualizing Indoor Air Quality Sunyoung Kim & Eric Paulos

    E-Print Network [OSTI]

    Paulos, Eric

    , long-term exposure to such chemicals can cause significant chronic health problems like asthma to the development of chronic respiratory diseases such as asthma, heart disease, and lung cancer. Complicating quality and are often causes of Figure 1. inAir located in a living room. dizziness, nausea, allergic

  16. Opening Remarks, Achieving Air Quality and Climate Change Goals...

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

    Air Quality and Climate Change Goals through Energy and Transportation Transformation Analisa Bevan CARB May 14, 2014 Sacramento California Healthy Air Quality for All...

  17. Optimization of Ventilation Energy Demands and Indoor Air Quality in the ZEBRAlliance Homes

    SciTech Connect (OSTI)

    Hun, D.; Jackson, M.; Shrestha, S.

    2013-09-01

    High-performance homes require that ventilation energy demands and indoor air quality (IAQ) be simultaneously optimized. In this project, Oak Ridge National Laboratory researchers attempted to bridge these two areas by conducting tests in research houses located in Oak Ridge, TN, that were less than 2 years old, energy-efficient (i.e., expected to consume 50% less energy than a house built per the 2006 IRC), tightly-built, unoccupied, and unfurnished. The team identified air pollutants of concern in the test homes 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 from initial air sampling surveys. 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 minimal to modest increases in electricity cost of ~$5 to ~$15/month depending on outdoor conditions.

  18. Using a Ventilation Controller to Optimize Residential Passive Ventilation For Energy and Indoor Air Quality

    SciTech Connect (OSTI)

    Turner, William; Walker, Iain

    2014-08-01

    One way to reduce the energy impact of providing residential ventilation is to use passive and hybrid systems. However, these passive and hybrid (sometimes called mixed-mode) systems must still meet chronic and acute health standards for ventilation. This study uses a computer simulation approach to examine the energy and indoor air quality (IAQ) implications of passive and hybrid ventilation systems, in 16 California climate zones. Both uncontrolled and flow controlled passive stacks are assessed. A new hybrid ventilation system is outlined that uses an intelligent ventilation controller to minimise energy use, while ensuring chronic and acute IAQ standards are met. ASHRAE Standard 62.2-2010 – the United States standard for residential ventilation - is used as the chronic standard, and exposure limits for PM2.5, formaldehyde and NO2 are used as the acute standards.The results show that controlled passive ventilation and hybrid ventilation can be used in homes to provide equivalent IAQ to continuous mechanical ventilation, for less use of energy.

  19. Indoor Chemical Exposures: Humans' Non-respiratory Interactions with Room Air

    ScienceCinema (OSTI)

    Charles Weschler

    2010-09-01

    March 18, 2010 Berkeley Lab Environmental Energy Technology Division distinguished lecture: The marked difference in pollutant concentrations between an occupied and un-occupied room are only partially explained by human bio-effluents. Humans alter levels of ozone and related oxidants such as nitrate and hydroxyl radicals in the rooms they inhabit; in effect, they change the oxidative capacity of room air. Ozone-initiated reactions on exposed skin, hair and clothing generate products, including potentially irritating chemicals whose concentrations are much higher in the occupant's breathing zone than in the core of the room. Charles J. Weschler is a Professor at the School of Public Health, the Department of Environmental and Occupational Medicine and the Environmental and Occupational Health Sciences Institute (EOHSI) at the University of Medicine and Dentistry of New Jersey (UMDNJ)/Robert Wood Johnson Medical School & Rutgers University (New Jersey). He is also a Visiting Professor at the International Centre for Indoor Environment and Energy, Technical University of Denmark (DTU, Lyngby, Denmark).

  20. The Center for Indoor Environments

    E-Print Network [OSTI]

    Oliver, Douglas L.

    review of indoor air pollution in schools requested by the Environment Committee of the Connecticut and evaluating the students' and staff health symptoms, · assessing the building for causes of poor indoor air agencies. Programs have included guidance on the Environmental Protection Agency Indoor Air Quality Tools

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

    SciTech Connect (OSTI)

    Hun, Diana E; Jackson, Mark C; Shrestha, Som S

    2014-01-01

    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.

  2. 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

    SciTech Connect (OSTI)

    Mendell, Mark J.; Apte, Mike G.

    2010-10-31

    This report considers the question of whether the California Energy Commission should incorporate the ASHRAE 62.1 ventilation standard into the Title 24 ventilation rate (VR) standards, thus allowing buildings to follow the Indoor Air Quality Procedure. This, in contrast to the current prescriptive standard, allows the option of using ventilation rate as one of several strategies, which might include source reduction and air cleaning, to meet specified targets of indoor air concentrations and occupant acceptability. The research findings reviewed in this report suggest that a revised approach to a ventilation standard for commercial buildings is necessary, because the current prescriptive ASHRAE 62.1 Ventilation Rate Procedure (VRP) apparently does not provide occupants with either sufficiently acceptable or sufficiently healthprotective air quality. One possible solution would be a dramatic increase in the minimum ventilation rates (VRs) prescribed by a VRP. This solution, however, is not feasible for at least three reasons: the current need to reduce energy use rather than increase it further, the problem of polluted outdoor air in many cities, and the apparent limited ability of increasing VRs to reduce all indoor airborne contaminants of concern (per Hodgson (2003)). Any feasible solution is thus likely to include methods of pollutant reduction other than increased outdoor air ventilation; e.g., source reduction or air cleaning. The alternative 62.1 Indoor Air Quality Procedure (IAQP) offers multiple possible benefits in this direction over the VRP, but seems too limited by insufficient specifications and inadequate available data to provide adequate protection for occupants. Ventilation system designers rarely choose to use it, finding it too arbitrary and requiring use of much non-engineering judgment and information that is not readily available. This report suggests strategies to revise the current ASHRAE IAQP to reduce its current limitations. These strategies, however, would make it more complex and more prescriptive, and would require substantial research. One practical intermediate strategy to save energy would be an alternate VRP, allowing VRs lower than currently prescribed, as long as indoor VOC concentrations were no higher than with VRs prescribed under the current VRP. This kind of hybrid, with source reduction and use of air cleaning optional but permitted, could eventually evolve, as data, materials, and air-cleaning technology allowed gradual lowering of allowable concentrations, into a fully developed IAQP. Ultimately, it seems that VR standards must evolve to resemble the IAQP, especially in California, where buildings must achieve zero net energy use within 20 years.

  3. Air Force Achieves Fuel Efficiency through Industry Best Practices

    SciTech Connect (OSTI)

    2012-12-01

    The U.S. Air Force’s Air Mobility Command (AMC) is changing the way it does business. It is saving energy and money through an aircraft fleet fuel-efficiency program inspired by private industry best practices and ideas resulting from the empowered fuel savings culture.

  4. Indoor air pollution from portable kerosene-fired space heaters. [Effects of wick height and fuel consumption rate

    SciTech Connect (OSTI)

    Traynor, G.W.; Apte, M.G.; Dillworth, J.F.; Grimsrud, D.T.

    1983-02-01

    Indoor use of unvented combustion appliances is known to cause an increase in indoor air pollutant levels. Laboratory tests were conducted on radiant and convective portable kerosene-fired space heaters to identify the pollutants they emit and to determine their emission rates. Laboratory-derived CO and NO/sub 2/ emission rates from unvented portable kerosense-fired space heaters are summarized and the effect of wick height and fuel consumption rate on CO and NO/sub 2/ emissions is given. Pollutant concentration profiles resulting from the use of kerosene heaters in a 27m/sup 3/ environmental chamber and a 240m/sup 3/ house are presented. When such heaters are operated for one hour in a 27m/sup 3/ chamber with 0.4 air changes per hour, the resultant CO/sub 2/ concentrations are well above the U.S. occupational standard, and NO/sub 2/ concentrations are well above California's short-term outdoor standard. Further data on parameters such as heater usage patterns and air exchange rates are needed to determine the actual pollutant exposure that kerosene heater users experience.

  5. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    Bittencourt, L. S. (2010) Air movement acceptability limitsthermal acceptability and air movement assessments in a hot-e úmidos. (Applicability of air velocity limits for thermal

  6. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    Windsor Conference - Air Conditioning and the Low CarbonA. , Thomas, PC (2010). Air conditioning, comfort and energyAmerica's Romance with Air- Conditioning. Washington, D.C.

  7. Air Force Achieves Fuel Efficiency through Industry Best Practices |

    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: Alternative FuelsofProgram:Y-12 Beta-3AUDITLeslie PezzulloAgenda AgendaEnergy Air

  8. Indoor airborne bacterial communities are influenced by ventilation, occupancy, and outdoor air source

    E-Print Network [OSTI]

    Bohannan, Brendan

    , is an energy-efficient way to simultaneously cool building mass and avoid overnight and weekend microbial an intensive temporal study of indoor airborne bacterial communities in a high-traffic university building associated with differing ventilation strategies relevant to modern building design. Our results indicate

  9. Computed tomography and optical remote sensing: Development for the study of indoor air pollutant transport and dispersion

    SciTech Connect (OSTI)

    Drescher, A.C.

    1995-06-01

    This thesis investigates the mixing and dispersion of indoor air pollutants under a variety of conditions using standard experimental methods. It also extensively tests and improves a novel technique for measuring contaminant concentrations that has the potential for more rapid, non-intrusive measurements with higher spatial resolution than previously possible. Experiments conducted in a sealed room support the hypothesis that the mixing time of an instantaneously released tracer gas is inversely proportional to the cube root of the mechanical power transferred to the room air. One table-top and several room-scale experiments are performed to test the concept of employing optical remote sensing (ORS) and computed tomography (CT) to measure steady-state gas concentrations in a horizontal plane. Various remote sensing instruments, scanning geometries and reconstruction algorithms are employed. Reconstructed concentration distributions based on existing iterative CT techniques contain a high degree of unrealistic spatial variability and do not agree well with simultaneously gathered point-sample data.

  10. United States Environmental Protection Agency Office of Radiation and Indoor Air (6608J) EPA 402-F-12-001 | September 2013 www.epa.gov/radiation/laws/190

    E-Print Network [OSTI]

    United States Environmental Protection Agency Office of Radiation and Indoor Air (6608J) EPA 402-F-12-001 | September 2013 www.epa.gov/radiation/laws/190 "Environmental Radiation Protection Standards discussion about whether to revise the Environmental Radiation Protection Standards for Nuclear Power

  11. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    Air conditioning, comfort and energy in India’s CommertialAir conditioning, comfort and energy in India’s Commertialand energy consumption across commercial, office and public buildings in India [

  12. Evaluation of control strategies for volatile organic compounds in indoor air (journal article)

    SciTech Connect (OSTI)

    Ramanathan, K.; Debler, V.L.

    1988-01-01

    The paper discusses research which evaluates the application of adsorption techniques to the control of indoor organic vapors. The adsorption on activated carbon of three compounds representing three classes of organic species was studied at 30 C in the concentration range zero to 200 ppb using a microbalance. The three were benzene (aromatic), acetaldehyde (oxygenated aliphatic), and 1,1,1-trichloroethane (halogenated aliphatic). Three sorbents (a wood base carbon, a coal base carbon, and a coconut shell base carbon) were examined. Uptakes for all the compounds on all the carbons were low (on the order of 10 to the minus 7th power gmol/g carbon). Simulation of a packed bed of carbon indicated that carbon adsorption may not be practical for continuous removal, but may be applicable to sudden releases (e.g., spills). Potential alternatives to activated carbon adsorption are discussed. Potentially toxic organic vapors are emitted from a wide variety of building materials, consumer products, and human activities. Control of indoor organic vapors generally involves removing the source and/or increasing the ventilation rate. The ubiquitous nature of sources of organic vapors generally makes source removal impractical. Increased ventilation causes increased energy usage with its resultant economic penalties. Therefore, practical removal methods are needed.

  13. Integrating Energy and Indoor Environmental Quality Retrofits in Apartments

    E-Print Network [OSTI]

    Fisk, William J.

    2014-01-01

    Environmental Quality and Energy Education In addition toAPPENDIX A1: Tenant Indoor Environmental Quality and Energyimproving indoor air quality (IAQ), energy efficiency and

  14. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    Air Plus Living Building Challenge Passive House EarthCraftof a passive perfluorocarbon tracer system for buildingof a green building, Energy Star or Passive House program.

  15. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    energy efficiency with the majority of electricity consumption attributed to lighting and air-conditioningair-conditioning and lighting systems without any consideration for energy efficiency

  16. Human comfort and self-estimated performance in relation to indoor environmental parameters and building features

    E-Print Network [OSTI]

    Frontczak, Monika

    2012-01-01

    caused by indoor air pollution, thermal load and noise.thermal load, low-frequency venti- lation noise and indoor air pollution.

  17. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    Another three homes used point-source heating, relyingsource Heating Fuel Type Electric Location Natural Gas Homehomes in CA are moving away from forced air heating and cooling systems, towards hydronic and point-source

  18. Handover Performance of HVAC Duct Based Indoor Wireless Networks

    E-Print Network [OSTI]

    Stancil, Daniel D.

    in indoor wireless net- works (IWN) that use heating, ventilation, and air conditioning (HVAC) ducts point to serve one floor and its staircase region achieves the best handover performance for IWN]. An alternative approach to transmitt/receive the RF signal is to use heating, ventilation, and airconditioning

  19. Challenges of Achieving 2012 IECC Air Sealing Requirements in Multifamily Dwellings

    SciTech Connect (OSTI)

    Klocke, S.; Faakye, O.; Puttagunta, S.

    2014-10-01

    ?While previous versions of the International Energy Conservation Code (IECC) have included provisions to improve the air tightness of dwellings, for the first time, the 2012 IECC mandates compliance verification through blower door testing. Simply completing the Air Barrier and Insulation Installation checklist through visual inspection is no longer sufficient by itself. In addition, the 2012 IECC mandates a significantly stricter air sealing requirement. In Climate Zones 3 through 8, air leakage may not exceed 3 ACH50, which is a significant reduction from the 2009 IECC requirement of 7 ACH50. This requirement is for all residential buildings, which includes low-rise multifamily dwellings. While this air leakage rate requirement is an important component to achieving an efficient building thermal envelope, currently, the code language doesn't explicitly address differences between single family and multifamily applications. In addition, the 2012 IECC does not provide an option to sample dwellings for larger multifamily buildings, so compliance would have to be verified on every unit. With compliance with the 2012 IECC air leakage requirements on the horizon, several of CARB's multifamily builder partners are evaluating how best to comply with this requirement. Builders are not sure whether it is more practical or beneficial to simply pay for guarded testing or to revise their air sealing strategies to improve compartmentalization to comply with code requirements based on unguarded blower door testing. This report summarizes CARB's research that was conducted to assess the feasibility of meeting the 2012 IECC air leakage requirements in 3 multifamily buildings.

  20. A Pilot Study of the Effectiveness of Indoor Plants for Removal of Volatile Organic Compounds in Indoor Air in a Seven-Story Office Building

    E-Print Network [OSTI]

    Apte, Michael G.

    2010-01-01

    Air Using Adsorbent Cartridge Followed by High Performancewheel and chemisorbent cartridge, transferring some heat todrawing air through silica gel cartridges coated with 2,4-

  1. Evaluating Indoor Air Quality (IAQ) as Modifying Factor in Designing Public School Buildings in Jordan 

    E-Print Network [OSTI]

    Ali, H. H.; Al-Momani, H.

    2004-01-01

    Air Quality (IAQ) as Modifying Factor in Designing Public School Buildings in Jordan Hikmat H. Ali, Ph.D. Hind Al...-Momani Department of Architecture Jordan University of Science and Technology Irbid-Jordan Hikmat_ali@yahoo.com Hikmat@just.edu.jo Phone (962) 2-7201000 Fax (962...

  2. Mass transfer of volatile organic compounds from drinking water to indoor air: The role of residential dishwashers

    SciTech Connect (OSTI)

    Howard-Reed, C.; Corsi, R.L.; Moya, J.

    1999-07-01

    Contaminated tap water may be a source of volatile organic compounds (VOCs) in residential indoor air. To better understand the extent and impact of chemical emissions from this source, a two-phase mass balance model was developed based on mass transfer kinetics between each phase. Twenty-nine experiments were completed using a residential dishwasher to determine model parameters. During each experiment, inflow water was spiked with a cocktail of chemical tracers with a wide range of physicochemical properties. In each case, the effects of water temperature, detergent, and dish-loading pattern on chemical stripping efficiencies and mass transfer coefficients were determined. Dishwasher headspace ventilation rates were also measured using an isobutylene tracer gas. Chemical stripping efficiencies for a single cycle ranged from 18% to 55% for acetone, from 96% to 98% for toluene, and from 97% to 98% for ethylbenzene and were consistently 100% for cyclohexane. Experimental results indicate that dishwashers have a relatively low but continuous ventilation rate that results in significant chemical storage within the headspace of the dishwasher. In conjunction with relatively high mass transfer coefficients, low ventilation rates generally lead to emissions that are limited by equilibrium conditions after approximately 1--2 min of dishwasher operation.

  3. Airborne Particulate Matter in HVAC Systems and its Influence on Indoor Air Quality 

    E-Print Network [OSTI]

    Fu, Z.; Li, N.; Wang, H.

    2006-01-01

    , Brownian diffusion, is always present as a result of the random interactions between particles and air molecules. A net flux of particles generated by Brownian diffusion only exists in the presence of a nonzero particle concentration gradient. Brownian.... In the same way that fluctuating turbulent velocity components contribute to momentum transport in turbulent flows, turbulent fluctuations contribute to the diffusive flux of particles. The instantaneous particle concentration in a turbulent flow can...

  4. Challenges of Achieving 2012 IECC Air Sealing Requirements in Multifamily Dwellings

    SciTech Connect (OSTI)

    Klocke, S.; Faakye, O.; Puttagunta, S.

    2014-10-01

    While previous versions of the International Energy Conservation Code (IECC) have included provisions to improve the air tightness of dwellings, for the first time, the 2012 IECC mandates compliance verification through blower door testing. Simply completing the Air Barrier and Insulation Installation checklist through visual inspection is no longer sufficient by itself. In addition, the 2012 IECC mandates a significantly stricter air sealing requirement. In Climate Zones 3 through 8, air leakage may not exceed 3 ACH50, which is a significant reduction from the 2009 IECC requirement of 7 ACH50. This requirement is for all residential buildings, which includes low-rise multifamily dwellings. While this air leakage rate requirement is an important component to achieving an efficient building thermal envelope, currently, the code language doesn't explicitly address differences between single family and multifamily applications. In addition, the 2012 IECC does not provide an option to sample dwellings for larger multifamily buildings, so compliance would have to be verified on every unit. With compliance with the 2012 IECC air leakage requirements on the horizon, several of Consortium for Advanced Residential Building's (CARB’s) multifamily builder partners are evaluating how best to comply with this requirement. Builders are not sure whether it is more practical or beneficial to simply pay for guarded testing or to revise their air sealing strategies to improve compartmentalization to comply with code requirements based on unguarded blower door testing. This report summarizes CARB's research that was conducted to assess the feasibility of meeting the 2012 IECC air leakage requirements in 3 multifamily buildings.

  5. Air movement preferences observed in office buildings

    E-Print Network [OSTI]

    2007-01-01

    Movement – Good or Bad? Indoor Air 14: 40-45. Toftum, J (Quality Survey. Indoor Air 14 (8): 65–74. Internationalon the Perception of Indoor Air Quality during Immediate and

  6. A scoping study on the costs of indoor air quality illnesses:an insurance loss reduction perspective

    SciTech Connect (OSTI)

    Chen, Allan; Vine, Edward L.

    1998-08-31

    The incidence of commercial buildings with poor indoor air quality (IAQ), and the frequency of litigation over the effects of poor IAQ is increasing. If so, these increases have ramifications for insurance carriers, which pay for many of the costs of health care and general commercial liability. However, little is known about the actual costs to insurance companies from poor IAQ in buildings. This paper reports on the results of a literature search of buildings-related, business and legal databases, and interviews with insurance and risk management representatives aimed at finding information on the direct costs to the insurance industry of poor building IAQ, as well as the costs of litigation. The literature search and discussions with insurance and risk management professionals reported in this paper turned up little specific information about the costs of IAQ-related problems to insurance companies. However, those discussions and certain articles in the insurance industry press indicate that there is a strong awareness and growing concern over the "silent crisis" of IAQ and its potential to cause large industry losses, and that a few companies are taking steps to address this issue. The source of these losses include both direct costs to insurers from paying health insurance and professional liability claims, as weIl as the cost of litigation. In spite of the lack of data on how IAQ-related health problems affect their business, the insurance industry has taken the anecdotal evidence about their reality seriously enough to alter their policies in ways that have lessened their exposure. We conclude by briefly discussing four activities that need to be addressed in the near future: (1) quantifying IAQ-related insurance costs by sector, (2) educating the insurance industry about the importance of IAQ issues, (3) examining IAQ impacts on the insurance industry in the residential sector, and (4) evaluating the relationship between IAQ improvements and their impact on energy use.

  7. NIOSH testimony on indoor air quality: Selected references before the Subcommittee on Superfund, Ocean and Water Protection, Committee on Environment and Public Works, United States Senate by J. Donald Millar, May 26, 1989

    SciTech Connect (OSTI)

    Not Available

    1989-09-01

    The National Institute for Occupational Safety and Health (NIOSH) has compiled the document in response to an increasing number of requests for information about indoor air quality (IAQ), including sick building syndrome. Included in the publication are: NIOSH Congressional testimony that describes the NIOSH IAQ investigations program and summarizes the results of NIOSH research and findings on IAQ problems, NIOSH guidance for conducting indoor air quality investigations, NIOSH journal article on evaluating building ventilation systems, and list of non-NIOSH publications on indoor air quality. As the Federal agency responsible for conducting research and making recommendations for occupational safety and health standards, NIOSH limits its IAQ activities to the occupational environment. The U.S. Environmental Protection Agency (EPA) also conducts an IAQ program and can be contacted for information regarding both occupational and non-occupational settings.

  8. Risk Assessment Scheme of Infection Transmission Indoors Incorporating the Impact of Resuspension

    E-Print Network [OSTI]

    You, Siming; Wan, Man Pun

    2015-01-01

    2002; 7. Goldmann DA. Transmission of viral respiratoryScheme of Infection Transmission Indoors 34. Krauter P,nosocomial tuberculosis transmission. Indoor Air, 1998; 8(

  9. Pilot Implementation of a Field Study Design to Evaluate the Impact of Source Control Measures on Indoor Air Quality in High Performance Homes

    SciTech Connect (OSTI)

    Widder, Sarah H.; Chamness, Michele A.; Petersen, Joseph M.; Singer, Brett C.; Maddalena, Randy L.; Destaillats, Hugo

    2014-10-20

    To improve the indoor air quality in new, high performance homes, a variety of standards and rating programs have been introduced to identify building materials that are designed to have lower emission rates of key contaminants of concern and a number of building materials are being introduced that are certified to these standards. For example, the U.S. Department of Energy (DOE) Zero Energy Ready Home program requires certification under the U.S. Environmental Protection Agency (EPA) Indoor airPLUS (IaP) label, which requires the use of PS1 or PS2 certified plywood and OSB; low-formaldehyde emitting wood products; low- or no-VOC paints and coatings as certified by Green Seal Standard GS-11, GreenGuard, SCS Indoor Advantage Gold Standard, MPI Green Performance Standard, or another third party rating program; and Green Label-certified carpet and carpet cushions. However, little is known regarding the efficacy of the IAP requirements in measurably reducing contaminant exposures in homes. The goal of this project is to develop a robust experimental approach and collect preliminary data to support the evaluation of indoor air quality (IAQ) measures linked to IAP-approved low-emitting materials and finishes in new residential homes. To this end, the research team of Pacific Northwest National Laboratory (PNNL) and Lawrence Berkeley National Laboratory (LBNL) developed a detailed experimental plan to measure IAQ constituents and other parameters, over time, in new homes constructed with materials compliant with IAP’s low-emitting material and ventilation requirements (i.e., section 6.1, 6.2, 6.3, and 7.2) and similar homes constructed to the state building code with conventional materials. The IAQ in IAP and conventional homes of similar age, location, and construction style is quantified as the differences in the speciated VOC and aldehyde concentrations, normalized to dilution rates. The experimental plan consists of methods to evaluate the difference between low-emitting and “conventional” materials as installed in newly constructed residential homes using both (1) highly controlled, short-term active samples to precisely characterize the building-related chemical emissions and building contents and (2) a week-long passive sample designed to capture the impact of occupant behavior and related activities on measured IAQ contaminant levels indoors. The combination of detailed short-term measurements with the home under controlled/consistent conditions during pre- and post-occupancy and the week-long passive sampling data provide the opportunity to begin to separate the different emission sources and help isolate and quantify variability in the monitored homes. Between April and August 2014, the research team performed pre-occupancy and post-occupancy sampling in one conventional home and two homes built with low-emitting materials that were generally consistent with EPA’s Indoor airPLUS guidelines. However, for a number of reasons, the full experimental plan was not implemented. The project was intended to continue for up to three years to asses long-term changes in IAQ but the project was limited to one calendar year. As a result, several of the primary research questions related to seasonal impacts and the long-term trends in IAQ could not be addressed. In addition, there were several unexpected issues related to recruiting, availability of home types, and difficulty coordinating with builders/realtors/homeowners. Several field monitoring issues also came up that provide “lessons learned” that led to improvements to the original monitoring plan. The project produced a good experimental plan that is expected to be be useful for future efforts collecting data to support answering these same or similar research questions.

  10. Indoor-air-quality research. Hearings before the Subcommittee on Energy Development and Applications and the Subcommittee on Natural Resources, Agriculture Research and Environment, US House of Representatives, Ninety-Eighth Congress, first session, August 2, 3, 1983

    SciTech Connect (OSTI)

    Not Available

    1984-01-01

    Spokesmen for the environmental health sciences, consumer product safety, medical profession, and conservation discussed current research on whether indoor air quality suffers as a result of weatherization to reduce air leakage at a two-day hearing. Critical areas for research were the identification, measurement, characterization, control and health effects of indoor pollutants. Of particular concern to the committee was the administration's phasing out of some research programs despite DOE authorization and Congressional appropriations to continue. The witnesses discussed contaminants from building materials, household products, and other sources as well as the effects of reduced ventilation. Additional material submitted for the record follows their testimony.

  11. The Airborne Metagenome in an Indoor Urban Environment

    E-Print Network [OSTI]

    Tringe, Susannah

    2009-01-01

    independent approaches to microbes harvested from the air ofthat the indoor air microbes are not random transients fromhealth policies. Airborne microbes are often attached to

  12. Parametric Evaluation of an Innovative Ultra-Violet Photocatalytic Oxidation (UVPCO) Air Cleaning Technology for Indoor Applications

    E-Print Network [OSTI]

    Hodgson, Alfred T.; Sullivan, Douglas P.; Fisk, William J.

    2005-01-01

    obtained by TD-GC/MS analysis of air samples collectedobtained by TD-GC/MS analysis of air samples collected

  13. An Experimental Investigation of Occupancy-Based Energy-Efficient Control of Commercial Building Indoor Climate

    E-Print Network [OSTI]

    Carloni, Luca

    An Experimental Investigation of Occupancy-Based Energy-Efficient Control of Commercial Building of the effect on indoor climate, we verify that the controller achieves the energy efficiency improvements to heating, ventilation, and air-conditioning (HVAC) systems [1]. Energy-efficient control of HVAC systems

  14. Simplified methodology for indoor environment designs

    E-Print Network [OSTI]

    Srebric, Jelena, 1970-

    2000-01-01

    Current design of the building indoor environment uses averaged single parameters such as air velocity, air temperature or contaminant concentration. This approach gives only general information about thermal comfort and ...

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

    E-Print Network [OSTI]

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

    2012-01-01

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

  16. Human Occupancy as a Source of Indoor Airborne Bacteria

    E-Print Network [OSTI]

    Hospodsky, Denina

    Exposure to specific airborne bacteria indoors is linked to infectious and noninfectious adverse health outcomes. However, the sources and origins of bacteria suspended in indoor air are not well understood. This study ...

  17. Indoor environment quality in LEED buildings: Understanding conditions affecting performance

    E-Print Network [OSTI]

    Walker, Kristine

    2015-01-01

    of Medicine (2011) Climate change, the indoor environment,on the Effect of Climate Change on Indoor Air Quality andto work and learn and climate change may make existing IEQ

  18. "Leveraging University Expertise to Inform Better Policy" Session One: The Role of Freight Transportation in Achieving Clean Air,

    E-Print Network [OSTI]

    California at Davis, University of

    Transportation in Achieving Clean Air, Climate Goals, Economic Growth, and Healthy Communities in California 11 in the field of transport/energy/environment analysis and policy development for over 20 years. He is Co:30am-1:00pm Friday April 19th , 2013 Partners: UC Davis Institute of Transportation Studies (ITS

  19. Building America Case Study: Challenges of Achieving 2012 IECC Air Sealing Requirements in Multifamily Dwellings, Upstate New York (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-11-01

    While previous versions of the International Energy Conservation Code (IECC) have included provisions to improve the air tightness of dwellings, for the first time, the 2012 IECC mandates compliance verification through blower door testing. Simply completing the Air Barrier and Insulation Installation checklist through visual inspection is no longer sufficient by itself. In addition, the 2012 IECC mandates a significantly stricter air sealing requirement. In Climate Zones 3 through 8, air leakage may not exceed 3 ACH50, which is a significant reduction from the 2009 IECC requirement of 7 ACH50. This requirement is for all residential buildings, which includes low-rise multifamily dwellings. While this air leakage rate requirement is an important component to achieving an efficient building thermal envelope, currently, the code language doesn't explicitly address differences between single family and multifamily applications. In addition, the 2012 IECC does not provide an option to sample dwellings for larger multifamily buildings, so compliance would have to be verified on every unit. With compliance with the 2012 IECC air leakage requirements on the horizon, several of CARB's multifamily builder partners are evaluating how best to comply with this requirement. Builders are not sure whether it is more practical or beneficial to simply pay for guarded testing or to revise their air sealing strategies to improve compartmentalization to comply with code requirements based on unguarded blower door testing. This report summarizes CARB's research that was conducted to assess the feasibility of meeting the 2012 IECC air leakage requirements in 3 multifamily buildings.

  20. Mitigating the Impacts of Uncontrolled Air Flow on Indoor Environmental Quality and Energy Demand in Non-Residential Buildings

    SciTech Connect (OSTI)

    Hugh I. Henderson; Jensen Zhang; James B. Cummings; Terry Brennan

    2006-07-31

    This multi-faceted study evaluated several aspects of uncontrolled air flows in commercial buildings in both Northern and Southern climates. Field data were collected from 25 small commercial buildings in New York State to understand baseline conditions for Northern buildings. Laboratory wall assembly testing was completed at Syracuse University to understand the impact of typical air leakage pathways on heat and moisture transport within wall assemblies for both Northern and Southern building applications. The experimental data from the laboratory tests were used to verify detailed heat and moisture (HAM) simulation models that could be used to evaluate a wider array of building applications and situations. Whole building testing at FSEC's Building Science Laboratory (BSL) systematically evaluated the energy and IAQ impacts of duct leakage with various attic and ceiling configurations. This systematic test carefully controlled all aspects of building performance to quantify the impact of duct leakage and unbalanced flow. The newest features of the EnergyPlus building simulation tool were used to model the combined impacts of duct leakage, ceiling leakage, unbalanced flows, and air conditioner performance. The experimental data provided the basis to validate the simulation model so it could be used to study the impact of duct leakage over a wide range of climates and applications. The overall objective of this project was to transfer work and knowledge that has been done on uncontrolled air flow in non-residential buildings in Florida to a national basis. This objective was implemented by means of four tasks: (1) Field testing and monitoring of uncontrolled air flow in a sample of New York buildings; (2) Detailed wall assembly laboratory measurements and modeling; (3) Whole building experiments and simulation of uncontrolled air flows; and (4) Develop and implement training on uncontrolled air flows for Practitioners in New York State.

  1. The Center for Indoor Environments and Health's specific mission is

    E-Print Network [OSTI]

    Oliver, Douglas L.

    pollutants and materials Outdoor air contaminants (including diesel particulates) and materials brought for Indoor Environments and Health #12;Why are building communities struggling with managing indoor air air problems? Design Structures built slab on grade, and/or with flat roofs with poor drainage

  2. A Marked Point Process Model for the Source Proximity E ect in the Indoor Environment 1

    E-Print Network [OSTI]

    West, Mike

    indoor air quality monitors arise because of the source proximity e#11;ect, in which pollutant sources. McBride Abstract In indoor air quality studies, discrepancies between personal and station- ary Science Foundation Graduate Fellowship as well as the Center for Indoor Air Research. The author thanks

  3. Optimal Airflow Control for Laboratory Air Handling Unit (LAHU) Systems 

    E-Print Network [OSTI]

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

    2002-01-01

    the indoor air quality, This paper presents modeling, optimization procedures and optimal airflow control sequences....

  4. Indoor unit for electric heat pump

    DOE Patents [OSTI]

    Draper, R.; Lackey, R.S.; Fagan, T.J. Jr.; Veyo, S.E.; Humphrey, J.R.

    1984-05-22

    An indoor unit for an electric heat pump is provided in modular form including a refrigeration module, an air mover module, and a resistance heat package module, the refrigeration module including all of the indoor refrigerant circuit components including the compressor in a space adjacent the heat exchanger, the modules being adapted to be connected to air flow communication in several different ways as shown to accommodate placement of the unit in various orientations. 9 figs.

  5. Participant Assisted Data Collection Methods in the California Healthy Homes Indoor Air Quality Study of 2011-13

    SciTech Connect (OSTI)

    Mullen, Nasim A.; Li, Jina; Singer, Brett C.

    2013-08-01

    From November 2011 to March 2013, air quality was measured over 6-day periods in 324 residences across California using a mail-out strategy. All interactions with study participants, from recruitment, to data collection, to communication of results, were conducted with remote communication methods including conventional mail, electronic mail, telephone and text messaging. Potential participants were reached primarily by sharing study information with community groups and organizations that directed interested individuals to complete an online screening survey. Pollutant concentrations were measured with sampling equipment that was mailed to participants' homes with deployment instructions. Residence and household characteristics and activity data were collected via two phone surveys and an activity log. A comparison of responses to survey questions completed online versus over the phone indicated that a substantial fraction of participants (roughly 20%) required a researcher's assistance to respond to basic questions about appliance characteristics. Using the printed instructions and telephone assistance from researchers, roughly 90% of participants successfully deployed and returned sampling materials accurately and on schedule. The mail-out strategy employed in this study was found to be a cost-effective means for collecting residential air quality data.

  6. Opening Remarks, Achieving Air Quality and Climate Change Goals through Energy and Transportation Transformation

    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 RankADVANCED MANUFACTURINGEnergy Bills and ReduceNovemberDOE'sManagementOpenEI and Linked OpenAir Quality and

  7. Building Pressure Control in VAV System with Relief Air Fan 

    E-Print Network [OSTI]

    Pang, X.; Liu, M.; Zheng, B.

    2005-01-01

    Building Pressure Control in VAV Systems with Relief Air Fan Xiufeng Pang, Mingsheng Liu, PhD, P.E., Bin Zheng University of Nebraska, Lincoln—ESL 1110 So. 67 th St, Omaha, NE, 68182 Abstract Building pressure control is critical... to energy conservation and indoor air quality by preventing excessive infiltration or exfiltration. In the supply and the return/relief fan Air Handling Unit (AHU) system, better space pressurization can be achieved when return/relief fan operates...

  8. Analysis of Cold Air Distribution System in an Office Building by the Numerical Simulation Method 

    E-Print Network [OSTI]

    Jian, Y.; Li, D.; Xu, H.; Ma, X.

    2006-01-01

    Numerical simulation is carried out in this paper to calculate indoor air patterns, which include angles of inlet direction and induced ratios in a typical official room. According to the simulation results, the indoor air distribution and indoor...

  9. Attributes of Indoor Environmental Quality to Earth-sheltered Building Design 

    E-Print Network [OSTI]

    Sheta, S.

    2010-01-01

    , while the second ranking was indoor radon (Huelman, 2004, pp. 10-21). Indoor environmental quality problems in earth sheltered buildings can take many forms but the main way to look at problems is to remember the three ?P?s? of indoor....), carbon monoxide and other combustion products, radon, pesticides, and household chemicals (Barcik, 2005, pp. 30-1). There are three basic aspects of indoor environmental quality that will be covered in this article?the sources of indoor air...

  10. Health and productivity gains from better indoor environments and their implications for the U.S. Department of Energy

    E-Print Network [OSTI]

    Fisk, William J.

    2000-01-01

    Indoor Air 1993, Helsinki. IPMVP IEQ Committee. 1999. Indooruse can also improve IEQ (IPMVP 1998, Fisk and Rosenfeld

  11. Moving air for comfort

    E-Print Network [OSTI]

    Arens, Edward; Turner, Stephen; Zhang, Hui; Paliaga, Gwelen

    2009-01-01

    Brager, L. Zagreus. 2007, “Air movement preferences observed709-731. 9. Toftum, J. 2004. “Air movement – good or bad? ”Indoor Air 14, pp 40-45. 10. Gong, N. , K. Tham, A. Melikov,

  12. Monitoring Viable Fungal and Bacterial Bioaerosol Concentrations to Identify Acceptable Levels for Common Indoor Environments 

    E-Print Network [OSTI]

    Robertson, L. D.

    1998-01-01

    Bioaerosol concentrations between 200 - 450 CFU/m3 have remained largely uncharacterized with respect to potential indoor air quality concerns. This research provides for further description of indoor bioaerosol concentrations and concludes that 3 0...

  13. Numerical Analysis of a Cold Air Distribution System 

    E-Print Network [OSTI]

    Zhu, L.; Li, R.; Yuan, D.

    2006-01-01

    non-uniform so that residents usually feel uncomfortable. The distribution of indoor airflow by cold air distribution is researched in this paper. We study indoor air distribution under different low temperature air supply conditions by numerical...

  14. Mold: An Indoor Air Pollutant 

    E-Print Network [OSTI]

    Harris, Janie

    2002-07-08

    the right conditions they begin to grow. The food source can be any organic material such as dust, books, papers, animal dander, soap scum, wood, particle board, paint, wallpaper, carpet and upholstery. When such materials stay damp (especially in dark... mold that grows on wet materials containing cellulose. Stachybotrys is one of several molds that produce potent mycotoxins (toxic sub- stances). How does mold affect health? Most people have few difficulties when exposed to mold spores...

  15. Health Hazards in Indoor Air

    E-Print Network [OSTI]

    Logue, Jennifer M.

    2012-01-01

    acrolein, benzene, 1,3-butadiene, 1,4- dichlorobenzene,1,4-dichlorobenzene, benzene, and 1,3-butadiene are specificacetaldehyde *butadiene, 1,3- *dichlorobenzene, 1,4- benzyl

  16. Health Hazards in Indoor Air

    E-Print Network [OSTI]

    Logue, Jennifer M.

    2012-01-01

    acrolein, benzene, 1,3-butadiene, 1,4- dichlorobenzene,benzene, and 1,3-butadiene are specific products.acetaldehyde *butadiene, 1,3- *dichlorobenzene, 1,4- benzyl

  17. Measured Air Distribution Effectiveness for Residential Mechanical Ventilation Systems

    E-Print Network [OSTI]

    Sherman, Max H.

    2008-01-01

    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

  18. Central Air Conditioning | Department of Energy

    Office of Environmental Management (EM)

    Air supply and return ducts come from indoors through the home's exterior wall or roof to connect with the packaged air conditioner, which is usually located outdoors....

  19. Evaluation of Ultra-Violet Photocatalytic Oxidation (UVPCO) for Indoor Air Applications: Conversion of Volatile Organic Compounds at Low Part-per-Billion Concentrations

    E-Print Network [OSTI]

    Hodgson, Alfred T.; Sullivan, Douglas P.; Fisk, William J.

    2005-01-01

    obtained by TD-GC/MS analysis of air samples collectedobtained by TD-GC/MS analysis of air samples collected

  20. Condition Controlling and Monitoring of Indoor Swimming Pools 

    E-Print Network [OSTI]

    Nissinen, K.; Kauppinen, T.; Hekkanen, M.

    2004-01-01

    installations and the indoor air quality. Also the yearly running costs can be remarkable high. VTT has created the technical risk map for indoor swimming pool repairs. This risk map presents the most significant factors that must be taken into account in order...

  1. Indoor unit for electric heat pump

    DOE Patents [OSTI]

    Draper, Robert (Churchill, PA); Lackey, Robert S. (Pittsburgh, PA); Fagan, Jr., Thomas J. (Penn HIlls, PA); Veyo, Stephen E. (Murrysville, PA); Humphrey, Joseph R. (Grand Rapids, MI)

    1984-01-01

    An indoor unit for an electric heat pump is provided in modular form including a refrigeration module 10, an air mover module 12, and a resistance heat package module 14, the refrigeration module including all of the indoor refrigerant circuit components including the compressor 36 in a space adjacent the heat exchanger 28, the modules being adapted to be connected to air flow communication in several different ways as shown in FIGS. 4-7 to accommodate placement of the unit in various orientations.

  2. Flying over the Reality Gap: From Simulated to Real Indoor Airships

    E-Print Network [OSTI]

    Floreano, Dario

    Flying over the Reality Gap: From Simulated to Real Indoor Airships Jean-Christophe Zufferey-Christophe.Zufferey@epfl.ch Abstract Because of their ability to naturally float in the air, indoor airships (often called blimps) con physics-based dynamic modelling of indoor airships including a pragmatic methodology for parameter

  3. IMPACT OF THE URBAN POLLUTION ON THE INDOOR ENVIRONMENT -EXPERIMENTAL STUDY ON A MECHANICAL

    E-Print Network [OSTI]

    Boyer, Edmond

    Bâtiment (CSTB), Nantes, France ABSTRACT This study aims to assess the transfer of outdoor air pollution and the relationships between outdoor and indoor urban air pollutant concentrations are more and more a subject indoor pollutant sources. At the initial state, the dwelling was naturally ventilated. Air renewal

  4. Rating of Mixed Split Residential Air Conditioners 

    E-Print Network [OSTI]

    Domanski, P. A.

    1988-01-01

    require that manufac- turers derive cooling ratings for unitary systems by testing a sample of sufficient size to meet certain specified statistical confidence levels. For split unitary systems comprising an outdoor unit and an indoor coil assembly...(95), SEER, and recommended indoor volumetric flow rate of air, are publicly available. The procedure also assumee that the matched indoor section is available for inspection and evaluation of the indoor coil capacity and the indoor fan power...

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

    E-Print Network [OSTI]

    Mortensen, Dorthe Kragsig

    2011-01-01

    to optimize indoor air quality and energy use. The resultsthe indoor air quality and energy use of passive stacks.of the improved air quality is energy consumption increases

  6. Autonomous flight in unstructured and unknown indoor environments

    E-Print Network [OSTI]

    Bachrach, Abraham Galton

    2009-01-01

    This thesis presents the design, implementation, and validation of a system that enables a micro air vehicle to autonomously explore and map unstructured and unknown indoor environments. Such a vehicle would be of considerable ...

  7. Hazard Assessment of Chemical Air Contaminants Measured in Residences

    E-Print Network [OSTI]

    Logue, J.M.

    2010-01-01

    in residential indoor air in Prince Edward Island, Canada."Boston, Massachusetts UK Prince Edward Island, Canada SW and

  8. Hazard Assessment of Chemical Air Contaminants Measured in Residences

    E-Print Network [OSTI]

    Logue, J.M.

    2010-01-01

    indoor air in Prince Edward Island, Canada." EnvironmentalMassachusetts UK Prince Edward Island, Canada SW and central

  9. Association between Local Traffic-Generated Air Pollution and Preeclampsia and Preterm Delivery in the South Coast Air Basin of California

    E-Print Network [OSTI]

    Wu, Jun; Ren, Cizao; Delfino, Ralph J; Chung, Judith; Wilhelm, Michelle; Ritz, Beate

    2009-01-01

    been associated with air pollution in only two recent U.S.indoor, and community air pollution research. Environ Healthvariation of outdoor air pollution. Atmos Environ 42( 33):

  10. New Air Cleaning Strategies for Reduced Commercial Building Ventilation Energy

    SciTech Connect (OSTI)

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

    2010-10-27

    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).

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

    E-Print Network [OSTI]

    Guang, L.; Li, R.

    2006-01-01

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

  12. Personal and Ambient Air Pollution is Associated with Increased Exhaled Nitric Oxide in Children with Asthma

    E-Print Network [OSTI]

    2006-01-01

    indoor, and community air pollution research. Environ Healthin pediatric asthmatics and air pollution: differences inwith peak particulate air pollution and effect modification

  13. New Whole-House Solutions Case Study: Challenges of Achieving 2012 IECC Air Sealing Requirements in Multifamily Dwellings, Upstate New York

    SciTech Connect (OSTI)

    2014-11-01

    While previous versions of the International Energy Conservation Code (IECC) have included provisions to improve the air tightness of dwellings, for the first time, the 2012 IECC mandates compliance verification through blower door testing. Simply completing the Air Barrier and Insulation Installation checklist through visual inspection is no longer sufficient; the 2012 IECC mandates a significantly stricter air sealing requirement. In Climate Zones 3 through 8, air leakage may not exceed 3 ACH50, which is a significant reduction from the 2009 IECC requirement of 7 ACH50. This requirement is for all residential buildings, which includes low-rise multifamily dwellings. While this air leakage rate requirement is an important component to achieving an efficient building thermal envelope, currently, the code language doesn't explicitly address differences between single family and multifamily applications. In addition, the 2012 IECC does not provide an option to sample dwellings for larger multifamily buildings, so compliance would have to be verified on every unit. With compliance with the 2012 IECC air leakage requirements on the horizon, several of Building America team Consortium for Advanced Residential Building's (CARB) multifamily builder partners are evaluating how best to comply with this requirement. Builders are not sure whether it is more practical or beneficial to simply pay for guarded testing or to revise their air sealing strategies to improve compartmentalization to comply with code requirements based on unguarded blower door testing. This report summarizes CARB's research that was conducted to assess the feasibility of meeting the 2012 IECC air leakage requirements in three multifamily buildings.

  14. Automobile proximity and indoor residential concentrations of BTEX and MTBE

    SciTech Connect (OSTI)

    Corsi, Dr. Richard; Morandi, Dr. Maria; Siegel, Dr. Jeffrey; Hun, Diana E

    2011-01-01

    Attached garages have been identified as important sources of indoor residential air pollution. However, the literature lacks information on how the proximity of cars to the living area affects indoor concentrations of gasoline-related compounds, and the origin of these pollutants. We analyzed data from the Relationships of Indoor, Outdoor, and Personal Air (RIOPA) study and evaluated 114 residences with cars in an attached garage, detached garage or carport, or without cars. Results indicate that homes with cars in attached garages were affected the most. Concentrations in homes with cars in detached garages and residences without cars were similar. The contribution from gasoline-related sources to indoor benzene and MTBE concentrations appeared to be dominated by car exhaust, or a combination of tailpipe and gasoline vapor emissions. Residing in a home with an attached garage could lead to benzene exposures ten times higher than exposures from commuting in heavy traffic.

  15. Low frequency indoor radiolocation

    E-Print Network [OSTI]

    Reynolds, Matthew S. (Matthew Stephen), 1975-

    2003-01-01

    This thesis concerns the application of electromagnetic wave propagation to the problem of indoor radiolocation. Determining the location of people and objects relative to their environment is crucial for asset tracking, ...

  16. Chlorine activation indoors and outdoors via surface-mediated reactions of nitrogen

    E-Print Network [OSTI]

    Dabdub, Donald

    Chlorine activation indoors and outdoors via surface-mediated reactions of nitrogen oxides and indoor air. Oxides of nitrogen (NOy) are also globally distributed, because NO formed in combustion processes is oxidized to NO2, HNO3, N2O5 and a variety of other nitrogen oxides during transport. Deposition

  17. Changes in indoor pollutants since the 1950s Charles J. Weschler a,b

    E-Print Network [OSTI]

    Short, Daniel

    University, Piscataway, NJ 08854, USA b International Centre for Indoor Environment and Energy, Technical University of Denmark, DK-2800 Lyngby, Denmark Keywords: Air conditioning Body burden Building materials products used indoors. Composite-wood, synthetic carpets, polymeric flooring, foam cushioning, plastic

  18. Movement of outdoor particles to the indoor environment: An analysis of the Arnhem Lead Study

    SciTech Connect (OSTI)

    Layton, D.W. [Lawrence Livermore National Lab., CA (United States); Thatcher, T.L. [Univ. of California, Berkeley, CA (United States). Dept. of Civil Engineering

    1995-03-01

    This paper analyzes the role of soil tracking as a source of indoor particles and quantifies key parameters influencing the transport of soil-derived particles (resuspension rates for particulate matter on floors, deposition velocities of suspended particles in indoor and outdoor air). The paper begins with a brief review of studies of particle transport processes and presents a simple model for studying the transport of particles in the indoor environment. The model is used to examine data on Pb distributions in the indoor and outdoor environments of community adjacent to a secondary lead smelter.

  19. Swimming Pool (Indoors

    E-Print Network [OSTI]

    Unknown

    2011-08-17

    This paper presents preliminary results of an analysis of measured comfort conditions for a Habitat for humanity house in central Texas. In the case study house indoor-outdoor temperature, humidity and C02 levels have been monitored in an attempt...

  20. Indoor Conditions Study and Impact on the Energy Consumption for a Large Commercial Building 

    E-Print Network [OSTI]

    Catalina, T.

    2011-01-01

    that were studied using dynamic simulations. The article provides interesting insights of the building indoor conditions (summer/winter comfort), humidity, air temperature, mean operative temperature and energy consumption using hourly climate data. A...

  1. Achieving Better Building Performance and Savings Using Optimal Control Strategies 

    E-Print Network [OSTI]

    Chen, H.; Deng, S.; Bruner, H.

    2003-01-01

    The Continuous Commissioning (CCSM) process has become a very important energy conservation topic for new and existing commercial buildings. This process can yield substantial operating savings, improved indoor air quality, and enhanced occupant...

  2. Indoor Radon and Its Decay Products: Concentrations, Causes, and Control Strategies

    SciTech Connect (OSTI)

    Nero, A.V.; Gadgil, A.J.; Nazaroff, W.W.; Revzan, K.L.

    1990-01-01

    This report is an introduction to the behavior of radon 222 and its decay products in indoor air. This includes review of basic characteristics of radon and its decay products and of features of the indoor environment itself, all of which factors affect behavior in indoor air. The experimental and theoretical evidence on behavior of radon and its decay products is examined, providing a basis for understanding the influence of geological, structural, and meteorological factors on indoor concentrations, as well as the effectiveness of control techniques. We go on to examine three important issues concerning indoor radon. We thus include (1) an appraisal of the concentration distribution in homes, (2) an examination of the utility and limitations of popular monitoring techniques and protocols, and (3) an assessment of the key elements of strategies for controlling radon levels in homes.

  3. Reducing Building Energy Costs Using Optimized Operation Strategies for Constant Volume Air Handling Systems 

    E-Print Network [OSTI]

    Liu, M.; Athar, A.; Reddy, A.; Claridge, D. E.; Haberl, J. S.; White, E.

    1994-01-01

    , they involve resetting the cooling deck or heating deck temperature according to the ambient temperature such that maximum energy efficiency can be achieved without compromising indoor air quality and comfort. Extended O&M Measures optimize system..., building energy consumption can be further reduced even after these traditional O&M measures are applied. This involves optimal adjusting of cold deck and hot deck settings according to the ambient temperature and organizing cold deck settings properly...

  4. Factors affecting the concentration of outdoor particles indoors (COPI): Identification of data needs and existing data

    SciTech Connect (OSTI)

    Thatcher, Tracy L.; McKone, Thomas E.; Fisk, William J.; Sohn, Michael D.; Delp, Woody W.; Riley, William J.; Sextro, Richard G.

    2001-12-01

    The process of characterizing human exposure to particulate matter requires information on both particle concentrations in microenvironments and the time-specific activity budgets of individuals among these microenvironments. Because the average amount of time spent indoors by individuals in the US is estimated to be greater than 75%, accurate characterization of particle concentrations indoors is critical to exposure assessments for the US population. In addition, it is estimated that indoor particle concentrations depend strongly on outdoor concentrations. The spatial and temporal variations of indoor particle concentrations as well as the factors that affect these variations are important to health scientists. For them, knowledge of the factors that control the relationship of indoor particle concentrations to outdoor levels is particularly important. In this report, we identify and evaluate sources of data for those factors that affect the transport to and concentration of outdoor particles in the indoor environment. Concentrations of particles indoors depend upon the fraction of outdoor particles that penetrate through the building shell or are transported via the air handling (HVAC) system, the generation of particles by indoor sources, and the loss mechanisms that occur indoors, such as deposition. To address these issues, we (i) identify and assemble relevant information including the behavior of particles during air leakage, HVAC operations, and particle filtration; (ii) review and evaluate the assembled information to distinguish data that are directly relevant to specific estimates of particle transport from those that are only indirectly useful and (iii) provide a synthesis of the currently available information on building air-leakage parameters and their effect on indoor particle matter concentrations.

  5. Preconditioning Outside Air: Cooling Loads from Building Ventilation 

    E-Print Network [OSTI]

    Kosar, D.

    1998-01-01

    for Acceptable Indoor Air Quality", that has cascaded into building codes over the early to mid 1990's. There has been a twofold to fourfold increase in outside air requirements for many commercial building applications, compared to the 1981 version...

  6. The Cricket indoor location system

    E-Print Network [OSTI]

    Priyantha, Nissanka Bodhi, 1968-

    2005-01-01

    Indoor environments present opportunities for a rich set of location-aware applications such as navigation tools for humans and robots, interactive virtual games, resource discovery, asset tracking, location-aware sensor ...

  7. Air temperature thresholds for indoor comfort and perceived air quality

    E-Print Network [OSTI]

    Zhang, Hui; Edward, Arens; Pasut, Wilmer

    2012-01-01

    on ambient temperature, Ergonomics, 2007, Vol. 50, No. 4,on Environmental Ergonomics 2009, August. Humphreys, M.A. (

  8. Seasonal Variation in Monthly Average Air Change Rates Using Passive Tracer Gas Measurements

    E-Print Network [OSTI]

    Hansen, René Rydhof

    of indoor air pollution sources. Concurrently, great efforts are made to make buildings energy efficient 1970s, while less attention has been paid to IAQ. Insufficient venting of indoor air pollutantsSeasonal Variation in Monthly Average Air Change Rates Using Passive Tracer Gas Measurements Marie

  9. Exergy Analysis of Industrial Air Compression 

    E-Print Network [OSTI]

    Bader, W. T.; Kissock, J. K.

    2000-01-01

    outdoor air temperature 50?F Average indoor air temperature 80?F Ambient air pressure 14.7 psia Compressed air pressure 115 psig = 129.7 psia Energy-Saving Recommendations Five recommendations to reduce operating costs of the compressed air system... were made. The first was to lower the activation setpoint pressure to 100 psig and standby setpoint pressure to 110 psig. This would reduce average plant air pressure from 115 to 105 psig, cutting energy costs and reducing wear and...

  10. Building America Whole-House Solutions for New Homes: Challenges of Achieving 2012 IECC Air Sealing Requirements in Multifamily Dwellings, Upstate New York

    Broader source: Energy.gov [DOE]

    In this project, the Consortium for Advanced Residential Buildings team sought to create a well-documented design and implementation strategy for air sealing in low-rise multifamily buildings that would assist in compliance with new building infiltration requirements of the 2012 IECC.

  11. Indoor Environmental Quality Benefits of Apartment Energy Retrofits

    SciTech Connect (OSTI)

    Noris, Federico; Adamkiewicz, Gary; Delp, William W.; Hotchi, Toshifumi; Russell, Marion; Singer, Brett C.; Spears, Michael; Vermeer, Kimberly; Fisk, William J.

    2013-06-01

    Sixteen apartments serving low-income populations in three buildings were retrofit with the goal of simultaneously reducing energy consumption and improving indoor environmental quality (IEQ). Retrofit measures varied among apartments and included, among others, envelope sealing, installation of continuous mechanical ventilation systems, upgrading bathroom fans and range hoods, attic insulation, replacement of heating and cooling systems, and adding wall-mounted particle air cleaners. IEQ parameters were measured, generally for two one-week periods before and after the retrofits. The measurements indicate an overall improvement in IEQ conditions after the retrofits. Comfort conditions, bathroom humidity, and concentrations of carbon dioxide, acetaldehyde, volatile organic compounds, and particles generally improved. Formaldehyde and nitrogen dioxide levels decreased in the building with the highest concentrations, were unchanged in a second building, and increased in a third building. IEQ parameters other than particles improved more in apartments with continuous mechanical ventilation systems installed. In general, but not consistently, larger percent increases in air exchange rates were associated with larger percent decreases in indoor levels of the pollutants that primarily come from indoor sources.

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

    SciTech Connect (OSTI)

    Mortensen, Dorthe Kragsig; Walker, Iain S.; Sherman, Max

    2011-01-01

    Ventilation requires energy to transport and condition the incoming air. The energy consumption for ventilation in residential buildings depends on the ventilation rate required to maintain an acceptable indoor air quality. Historically, U.S. residential buildings relied on natural infiltration to provide sufficient ventilation, but as homes get tighter, designed ventilation systems are more frequently required particularly for new energy efficient homes and retrofitted homes. ASHRAE Standard 62.2 is used to specify the minimum ventilation rate required in residential buildings and compliance is normally achieved with fully mechanical whole-house systems; however, alternative methods may be used to provide the required ventilation when their air quality equivalency has been proven. One appealing method is the use of passive stack ventilation systems. They have been used for centuries to ventilate buildings and are often used in ventilation regulations in other countries. Passive stacks are appealing because they require no fans or electrical supply (which could lead to lower cost) and do not require maintenance (thus being more robust and reliable). The downside to passive stacks is that there is little control of ventilation air flow rates because they rely on stack and wind effects that depend on local time-varying weather. In this study we looked at how passive stacks might be used in different California climates and investigated control methods that can be used to optimize indoor air quality and energy use. The results showed that passive stacks can be used to provide acceptable indoor air quality per ASHRAE 62.2 with the potential to save energy provided that they are sized appropriately and flow controllers are used to limit over-ventilation.

  13. Predicting air quality in smart environments Seun Deleawea

    E-Print Network [OSTI]

    Cook, Diane J.

    attributable to air pollution, 1.5 million of these from indoor air pollution. Worldwide there are more deathsPredicting air quality in smart environments Seun Deleawea , Jim Kusznirb , Brian Lambb and Diane J that is often overlooked in maintaining a healthy lifestyle is the air quality of the environment. In this paper

  14. AIR FLOW DISTRIBUTION IN A HIGH-RISE RESIDENTIAL Helmut E. Feustel and Richard C. Diamond

    E-Print Network [OSTI]

    Diamond, Richard

    To provide good indoor air quality or to calculate space conditioning loads for energy consumption for providing sufficient indoor air quality has an impact on the energy consumption of the building. The effect consumption per floor for a 12 story apartment building in Pittsburgh, Pennsylvania. Consumption data have

  15. A Coupled Airflow-and-Energy Simulation Program for Indoor Thermal Environment Studies (RP-927)

    E-Print Network [OSTI]

    Chen, Qingyan "Yan"

    for the design of radiative, convective, and hybrid heating and cooling systems. Keywords: Airflow, Air with convective, radiative, and hybrid heating and cooling systems. In the past few years, many investigations for thermal comfort (ASHRAE 1992). In an indoor space with radiative, convective, and hybrid heating

  16. Formaldehyde in residences: long-term indoor concentrations and influencing factors

    E-Print Network [OSTI]

    Short, Daniel

    Formaldehyde in residences: long-term indoor concentrations and influencing factors Introduction Formaldehyde is a hazardous air pollutant that is widespread in residential buildings. It is a potent irritant. (2009) and Sax et al. (2006) concluded that formaldehyde was the highest contrib- utor to the cumulative

  17. 2014 International Conference on Indoor Positioning and Indoor Navigation, 27th October 2014

    E-Print Network [OSTI]

    Ribeiro, Vinay

    , India Email: vinay@cse.iitd.ernet.in Saurabh Tewari CSR Technologies India Pvt. Ltd. Noida, India Email: Saurabh.Tewari@csr.com Abstract--Indoor maps are highly essential for indoor posi- tioning and location

  18. Air Sealing: A Guide for Contractors to Share with Homeowners – Volume 10

    SciTech Connect (OSTI)

    Pacific Northwest National Laboratory

    2010-04-12

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

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

    E-Print Network [OSTI]

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

    2006-01-01

    In view of the influence of humidity of room air on room heat load, indoor environment and building energy consumption in underground intermittent air-conditioning systems, numerical simulation was used to dynamically analyze the coupling condition...

  20. Saving energy and improving IAQ through application of advanced air cleaning technologies

    SciTech Connect (OSTI)

    Fisk, W.J; Destaillats, H.; Sidheswaran, M.A.

    2011-03-01

    In the future, we may be able use air cleaning systems and reduce rates of ventilation (i.e., reduce rates of outdoor air supply) to save energy, with indoor air quality (IAQ) remaining constant or even improved. The opportunity is greatest for commercial buildings because they usually have a narrower range of indoor pollutant sources than homes. This article describes the types of air cleaning systems that will be needed in commercial buildings.

  1. Combination of Indoor and Outdoor PositioningOutdoor Positioning

    E-Print Network [OSTI]

    (indoor, outdoor, urban, rural, remote) Active / passive sensors Accuracy (m ­ km) Application (industry of various building materials (L1 = 1500 MHz) Indoors: Positioning Requirements Overview of Systems GNSS

  2. Air quality evaluation of London Paddington train station

    E-Print Network [OSTI]

    Chong, Uven; Swanson, Jacob J.; Boies, Adam M.

    2015-01-01

    concentrations in residential houses. Atmospheric Environment 2004, 38 (21), 3405-3415. 9. Long, C. M.; Suh, H. H.; Koutrakis, P., Characterization of indoor particle sources using continuous mass and size monitors. Journal of the Air & Waste Management...

  3. Bayesian Approach for Indoor Pedestrian Localisation

    E-Print Network [OSTI]

    Bierlaire, Michel

    Bayesian Approach for Indoor Pedestrian Localisation Ivan Spassov, EPFL ENAC TOPO Michel Bierlaire for Indoor Pedestrian Localisation Ivan Spassov EPFL ENAC TOPO Lausanne - Switzerland Michel Bierlaire EPFL via GPS or defined by the user. Consider a pedestrian navigation system which contains a GPS receiver

  4. A wireless LAN-based indoor

    E-Print Network [OSTI]

    Gao, Grace Xingxin

    A wireless LAN- based indoor positioning technology Z. Xiang S. Song J. Chen H. Wang J. Huang X services by exploiting user context information. In this paper, we present a wireless-local- area-network-based (WLAN-based) indoor positioning technology. The wireless device deploys a position- determination model

  5. About the Air Pollution and Respiratory Health Program The Air Pollution and Respiratory Health Program of the National Center for Environmental Health, Centers for

    E-Print Network [OSTI]

    About the Air Pollution and Respiratory Health Program The Air Pollution and Respiratory Health indoor and outdoor air pollution. CDC's asthma program focuses on three main activities: (1) tracking public health agencies. For example, CDC staff are currently studying the effect of outdoor air pollution

  6. Spatial and temporal variations in indoor environmental conditions, human occupancy, and operational characteristics in a new hospital building

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Ramos, Tiffanie; Dedesko, Sandra; Siegel, Jeffrey A.; Gilbert, Jack A.; Stephens, Brent

    2015-03-02

    The dynamics of indoor environmental conditions, human occupancy, and operational characteristics of buildings influence human comfort and indoor environmental quality, including the survival and progression of microbial communities. A suite of continuous, long-term environmental and operational parameters were measured in ten patient rooms and two nurse stations in a new hospital building in Chicago, IL to characterize the indoor environment in which microbial samples were taken for the Hospital Microbiome Project. Measurements included environmental conditions (indoor dry-bulb temperature, relative humidity, humidity ratio, and illuminance) in the patient rooms and nurse stations; differential pressure between the patient rooms and hallways; surrogatemore »measures for human occupancy and activity in the patient rooms using both indoor air CO? concentrations and infrared doorway beam-break counters; and outdoor air fractions in the heating, ventilating, and air-conditioning systems serving the sampled spaces. Measurements were made at 5-minute intervals over consecutive days for nearly one year, providing a total of ~8×10? data points. Indoor temperature, illuminance, and human occupancy/activity were all weakly correlated between rooms, while relative humidity, humidity ratio, and outdoor air fractions showed strong temporal (seasonal) patterns and strong spatial correlations between rooms. Differential pressure measurements confirmed that all patient rooms were operated at neutral pressure. The patient rooms averaged about 100 combined entrances and exits per day, which suggests they were relatively lightly occupied compared to higher traffic environments (e.g., retail buildings) and more similar to lower traffic office environments. There were also clear differences in several environmental parameters before and after the hospital was occupied with patients and staff. Characterizing and understanding factors that influence these building dynamics is vital for hospital environments, where they can impact patient health and the survival and spread of healthcare associated infections.« less

  7. Spatial and temporal variations in indoor environmental conditions, human occupancy, and operational characteristics in a new hospital building

    SciTech Connect (OSTI)

    Ramos, Tiffanie; Dedesko, Sandra; Siegel, Jeffrey A.; Gilbert, Jack A.; Stephens, Brent

    2015-03-02

    The dynamics of indoor environmental conditions, human occupancy, and operational characteristics of buildings influence human comfort and indoor environmental quality, including the survival and progression of microbial communities. A suite of continuous, long-term environmental and operational parameters were measured in ten patient rooms and two nurse stations in a new hospital building in Chicago, IL to characterize the indoor environment in which microbial samples were taken for the Hospital Microbiome Project. Measurements included environmental conditions (indoor dry-bulb temperature, relative humidity, humidity ratio, and illuminance) in the patient rooms and nurse stations; differential pressure between the patient rooms and hallways; surrogate measures for human occupancy and activity in the patient rooms using both indoor air CO? concentrations and infrared doorway beam-break counters; and outdoor air fractions in the heating, ventilating, and air-conditioning systems serving the sampled spaces. Measurements were made at 5-minute intervals over consecutive days for nearly one year, providing a total of ~8×10? data points. Indoor temperature, illuminance, and human occupancy/activity were all weakly correlated between rooms, while relative humidity, humidity ratio, and outdoor air fractions showed strong temporal (seasonal) patterns and strong spatial correlations between rooms. Differential pressure measurements confirmed that all patient rooms were operated at neutral pressure. The patient rooms averaged about 100 combined entrances and exits per day, which suggests they were relatively lightly occupied compared to higher traffic environments (e.g., retail buildings) and more similar to lower traffic office environments. There were also clear differences in several environmental parameters before and after the hospital was occupied with patients and staff. Characterizing and understanding factors that influence these building dynamics is vital for hospital environments, where they can impact patient health and the survival and spread of healthcare associated infections.

  8. FEMP's O & M Best Practices Guide: A Guide to Achieving Operational Efficiency

    SciTech Connect (OSTI)

    Sullivan, Gregory P. ); Melendez, Aldo P. ); Pugh, Ray )

    2002-10-01

    FEMP's O & M Best Practices Guide (O & M BPG) highlights O & M programs targeting energy efficiency that are estimated to save between 5% and 20% on energy bills without a significant capital investment. Depending on the Federal site, these savings can represent thousands to hundreds-of-thousands of dollars each year, and many can be achieved with minimal cash outlays. In addition to energy/resource savings, a well-run O & M program will (1)increase the safety of all staff because properly maintained equipment is safer equipment; (2)ensure the comfort, health and safety of building occupants through properly functioning equipment providing a healthy indoor environment; (3)confirm the design life expectancy of equipment is achieved; and (4)facilitate the compliance with Federal legislation such as the Clean Air Act and the Clean Water Act. The focus of this guide is to provide the Federal O & M/Energy manager and practitioner with information and actions aimed at achieving these savings and benefits. The O & M BPG was developed under the direction of the Department of Energy's Federal Energy Management Program (FEMP).

  9. Improving Indoor Environmental Quality And Energy Performance Of Modular Classroom HVAC Systems

    E-Print Network [OSTI]

    Apte, Michael G.; Spears, Michael; Lai, Chi-Ming; Shendell, Derek G.

    2005-01-01

    INDOOR ENVIRONMENTAL QUALITY AND ENERGY PERFORMANCE OFINDOOR ENVIRONMENTAL QUALITY AND ENERGY PERFORMANCE OFEnergy efficiency and indoor environmental quality (IEQ) are

  10. From Earth to Saturn: Los Alamos Achievements

    ScienceCinema (OSTI)

    McMillan, Charlie; Wilson, Cathy; Nekimkem, Howard; Martinez, Johnnie; Martz, Joe; Albright, Brian

    2014-08-13

    A compilation of some of the remarkable achievements of Los Alamos National Laboratory staff over the past 12 months. Originally aired in the June 26, 2008 Director's all-employee meeting.

  11. Indoor Air Quality in 24 California Residences Designed as High...

    Office of Scientific and Technical Information (OSTI)

    provided as a public service. Visit OSTI to utilize additional information resources in energy science and technology. A paper copy of this document is also available for sale to...

  12. Maintaining Indoor Air Quality During Construction and Renovation Projects

    E-Print Network [OSTI]

    Huang, Jianyu

    / Hazards Volatile Organic Compounds (VOCs) Volatile organic compounds (VOCs) are compounds that are readily Flooring Caulks Fuels, Cleaners Wall Coverings Sealants Adhesives Composite Wood Products Paints Carpeting be implemented. Hazardous Particulates which are subject to special regulation include lead paint dust which

  13. INDOOR AIR QUALITY MEASUREMENTS IN ENERGY-EFFICIENT RESIDENTIAL BUILDINGS

    E-Print Network [OSTI]

    Berk, J.V.

    2011-01-01

    Laboratory Energy Efficient Buildings Mobile Laboratory.of 1,150 f t . LBL's Energy Efficient Buildings (EEB) MobileLaboratory. Energy Efficient Buildings Program Energy and

  14. INDOOR AIR QUALITY IN ENERGY-EFFICIENT BUILDINGS

    E-Print Network [OSTI]

    Hollowell, Craig D.

    2011-01-01

    microbial burden The Energy Efficient Buildings (EEB) Mobilein a number of energy efficient buildings, wherein pollutantenergy~efficient ventilation , institutional and commercial buildings.

  15. Indoor airPLUS Construction Specifications Version 1 (Rev. 01...

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

    Radon-Resistant Homes. 2001. U.S. Environmental Protection Agency. EPA Radon Maps: EPA's Map of Radon Zones. 2008. U.S. Environmental Protection Agency. EPA Standard for New...

  16. Indoor Air Quality and Ventilation in Residential Deep Energy...

    Office of Scientific and Technical Information (OSTI)

    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....

  17. Are Ventilation Filters Degrading Indoor Air Quality in California Classrooms?

    E-Print Network [OSTI]

    Fisk, Michael G. Apte and William J.

    2009-01-01

    Energy Research Program Prepared By: Lawrence Berkeley National LaboratoryNational Laboratory Berkeley, CA 94720 October 2008 The research reported here was supported by the California Energy Commission Public Interest Energy ResearchNational Laboratory.  The information from this project contributes to PIER’s  Energy?Related Environmental Research 

  18. Indoor Air Quality in 24 California Residences Designed as High...

    Office of Scientific and Technical Information (OSTI)

    (United States) Sponsoring Org: USDOE Office of Science (SC); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Building Technologies Office (EE-5B) Country of...

  19. INDOOR AIR QUALITY MEASUREMENTS IN ENERGY-EFFICIENT RESIDENTIAL BUILDINGS

    E-Print Network [OSTI]

    Berk, J.V.

    2011-01-01

    Modem RESIDENTIAL ENERGY CONSUMPTION DATA (1976) TOTAL 18.95HEATING COMMERCIAL ENERGY CONSUMPTION DATA (1976) TOTAL 10.3data on various active and pas- sive methods of reducing energy consumption

  20. Indoor-Outdoor Air Leakage of Apartments and Commercial Buildings

    E-Print Network [OSTI]

    Price, P.N.

    2011-01-01

    Canada Method Leakage Measurement Units ACH ACH ACH ACH ACHReference Study Leakage Measurement Units ACH ACH ACH ACHKing Reference Leakage Measurement Units ACH ACH ACH ACH ACH

  1. INDOOR AIR QUALITY MEASUREMENTS IN ENERGY EFFICIENT BUILDINGS

    E-Print Network [OSTI]

    Hollowell, C.D.

    2011-01-01

    Quality Measurements in Energy Efficient Buildings Craig D.Quality ~leasurements in Energy Efficient Buildings Craig D.Gregory W. Traynor Energy Efficient Buildings Program Energy

  2. Indoor airPLUS Construction Specifications Version 1 (Rev. 02...

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

    and they shall meet the emission requirements of the EPA Standards for New Residential Wood Heaters and WAC 173-433-100 (3). " Pellet stoves shall meet the requirements of ASTM...

  3. INDOOR AIR QUALITY (IAQ) PROGGRAM GUIDELINE HUMAN RESOURCES SERVICE GROUP

    E-Print Network [OSTI]

    Su, Xiao

    congestion, itching, coughing, and runny nose. Throat symptoms include feelings of dryness and irritation

  4. Indoor Air Quality Assessment of the San Francisco Federal Building

    E-Print Network [OSTI]

    Apte, Michael

    2010-01-01

    References ASHRAE. 1999. ANSI/ASHRAE Standard 129-199,Atlanta GA. ASHRAE. 2004. ANSI/ASHRAE Standard 55, ThermalAtlanta GA. ASHRAE. 2007. ANSI/ASHRAE Standard 62.1,

  5. Indoor Air Quality Survey of Boston Nail Salons

    E-Print Network [OSTI]

    Snider, Barry B.

    of salon activities, and a short questionnaire #12;Study Methods Carbon Dioxide (CO2) can be used's (ppb) 9,519 45 1,409 5,475 16,225 35,711 37,767 CO2 (ppm) 1,085 641 809 1,055 1,257 1,544 2,057 PM2.5 (g/m3) 21 6 14 16 20 49 62 #12;Average Measured CO2 (ppm) Concentrations · CO2 levels in 15 of 21

  6. Impacts of contaminant storage on indoor air quality: Model development

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnical Report:Speeding accessby aLED Street LightingFrom theHighI _ _1 - 67006++,

  7. Impacts of contaminant storage on indoor air quality: Model development

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnical Report:Speeding accessby aLED Street LightingFrom theHighI _ _1 - 67006++,(Journal

  8. Indoor Air Quality and Ventilation in Residential Deep Energy Retrofits

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journal Article)lasers(JournalatBaBar (Thesis/Dissertation) |

  9. Indoor Air Quality and Ventilation in Residential Deep Energy Retrofits

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journal Article)lasers(JournalatBaBar (Thesis/Dissertation) |(Technical Report) |

  10. Energy Efficient Removal of Ozone from Indoor Air

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunities Energy EfficiencyModularEfficiency:Industrial

  11. ENERGY STAR Webinar: Energy Savings Plus Health: Indoor Air Quality

    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: Alternative Fuels Data Center HomeVehicleDepartment ofGraphics »DepartmentEERE

  12. Indoor Chemistry: Materials, Ventilation Systems, and Occupant Activities

    E-Print Network [OSTI]

    Morrison, G.C.

    2011-01-01

    and J. D. Wooley. Indoor chemistry: ozone volatile organicTibbetts. Ozone Reactive Chemistry on Interior Latex Paint.and the role of reactive chemistry. Indoor A ir. 16 (2006)7-

  13. Investigation of Methods of Disinfection in an All-air System 

    E-Print Network [OSTI]

    Wang, J.; Yan, Z.

    2006-01-01

    The experiment of removing bacteria and indoor air particulates by a bag ventilation filter with synthetic media and an electrostatic filter was carried out, and the effect of killing bacteria by ozone application was also tested. The results show...

  14. Aalborg Universitet Optimal Control of Offshore Indoor Climate

    E-Print Network [OSTI]

    Yang, Zhenyu

    Aalborg Universitet Optimal Control of Offshore Indoor Climate Yang, Zhenyu; Valente, Andrea., & Valente, A. (2010). Optimal Control of Offshore Indoor Climate. I E E E Conference on Control Applications from vbn.aau.dk on: juli 07, 2015 #12;Optimal Control of Offshore Indoor Climate Zhenyu Yang and Andrea

  15. Indoor positioning algorithm using light-emitting diode visible light

    E-Print Network [OSTI]

    Kavehrad, Mohsen

    Indoor positioning algorithm using light- emitting diode visible light communications Zhou Zhou of Use: http://spiedl.org/terms #12;Indoor positioning algorithm using light-emitting diode visible light. This paper proposes a novel indoor positioning algorithm using visible light communications (VLC

  16. Indoor nitrogen dioxide in five Chattangooga, Tennessee public housing developments

    SciTech Connect (OSTI)

    Parkhurst, W.J.; Harper, J.P. ); Spengler, J.D.; Fraumeni, L.P.; Majahad, A.M. ); Cropp, J.W. )

    1988-01-01

    This report summarizes an indoor nitrogen dioxide (NO{sub 2}) sampling study conducted during January through March of 1987 in five Chattanooga public housing developments. The origins of this study date to the summer of 1983 when the Piney Woods Community Organization (a citizens action group) expressed concern about toxic industrial air pollution and the effects it might have on their community. In response to these concerns, the Chattanooga-Hamilton County Air Pollution Control Bureau (Bureau) requested assistance from the Tennessee Department of Health and Environment (TDHE) in conducting a community health survey and assistance from the Tennessee Valley Authority (TVA) in conducting a community air quality measurement program. The TDHE community health study did not find any significant differences between the mortality statistics for the Piney Woods community and a demographically similar control group. However, a health survey revealed that Piney Woods residents did not have a statistically significant higher self-reported prevalence of cough, wheezing, phlegm, breathlessness, colds, and respiratory illness.

  17. Proposal for a consulting commission Climate and Air Quality of the Austrian Academy of Sciences

    E-Print Network [OSTI]

    Drmota, Michael

    and climate strategies and their relation to air pollution issues · Co-benefit consideration of different issues relating to the atmosphere (air pollution, climate change) and aerosol ­ climate interaction · Exposures to ambient and indoor air pollutants (fine and ultrafine particles) · Epidemiology of disease

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

    E-Print Network [OSTI]

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

    2006-01-01

    The main purpose of this study is to put forward a novel nonlinear feedback control strategy on controlling indoor air temperature by variable air volume. A dynamic model of a typical room for a VAV air-conditioning system is established...

  19. Algorithms for GPS operation indoors and downtown

    E-Print Network [OSTI]

    Sahai, Anant

    Algorithms for GPS operation indoors and downtown Nainesh Agarwal Æ Julien Basch Æ Paul Beckmann Æ Piyush Bharti Æ Scott Bloebaum Stefano Casadei Æ Andrew Chou Æ Per Enge Æ Wungkum Fong Æ Neesha Hathi. Casadei Æ A. Chou Æ P. Enge Æ W. Fong N. Hathi Æ W. Mann Æ J. Stone Æ J. Tsitsiklis Æ B. Van Roy

  20. A crossover design study to evaluate the effectiveness of appliance inspection and servicing for lowering indoor nitrogen dioxide concentrations

    SciTech Connect (OSTI)

    Colome, S.D. ); Billick, I.H. ); Baker, P.E.; Beals, S.A.; Rubio, S.A.; Cunningham, S.J. ); Wilson, A.L. )

    1988-01-01

    Some researchers have suggested that natural gas appliances are significant contributors to indoor air pollution. Indoor unvented combustion appliances, such as gas-fired ranges, unvented space heaters, and portable kerosene space heaters, have been associated with a wide variety of pollutants, including carbon monoxide (CO), nitric oxide (NO), nitrogen dioxide (NO{sub 2}), sulfur dioxide (SO{sub 2}), formaldehyde (HCHO), and respirable particles. Previous indoor air quality studies have demonstrated that indoor NO{sub 2} concentrations often exceed outdoor ambient levels when gas- burning appliances are used. Cooking with gas has been the focus of many of these studies, although other unvented appliances, such as space-heaters, have also been associated with elevated NO{sub 2} concentrations. Some epidemiologic studies of exposure to NO{sub 2} in homes with gas ranges have indicated a higher prevalence of respiratory symptoms and illness. However, other studies contradicted these findings and failed to show any significant effects associated with gas cooking.

  1. Very low temperature radiant heating/cooling indoor end system for efficient use of renewable energies

    SciTech Connect (OSTI)

    Ren, Jianbo; Wang, Yiping; Wang, Congrong; Xiong, Weicheng; Zhu, Li

    2010-06-15

    Solar or solar-assisted space heating systems are becoming more and more popular. The solar energy utilization efficiency is high when the collector is coupled with indoor radiant heating suppliers, since in principle, lower supply temperature means lower demand temperature and then the system heat loss is less. A new type radiant end system is put forward for even lower supply temperature compared to the conventional radiant floor heating systems. A three dimensional model was established to investigate its energy supply capacities. Simulation results show that 50 W per meter length tube can be achieved with the medium temperature of 30 C for heating and 15 C for cooling. The predicted results agree well with the actual data from a demonstration building. Furthermore, it is demonstrated that a supply temperature of 22 C in winter and of 17 C in summer already met the indoor requirements. The new end system has good prospects for effective use of local renewable resources. (author)

  2. Integrated Technology Air Cleaners (ITAC): Design and Evaluation

    SciTech Connect (OSTI)

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

    2013-09-13

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

  3. Received 1 Sep 2014 | Accepted 6 Jan 2015 | Published 16 Feb 2015 Transparent air filter for high-efficiency PM2.5

    E-Print Network [OSTI]

    Cui, Yi

    air filter for indoor air protection through windows that uses natural passive ventilation or central air conditioning; residential housing seldom has filtration protection from PM. Moreover, all is also of great concern17. It would be ideal if passive air exchange--that is, natural ventilation

  4. Performance Evaluation of Radiant Cooling System Integrated with Air System under Different Operational Strategies

    SciTech Connect (OSTI)

    Khare, Vaibhav [Malaviya National Institute of Technology (MNIT), Jaipur, India; Khan, Yasin [Malaviya National Institute of Technology (MNIT), Jaipur, India; Mathur, Jyotirmay [Malaviya National Institute of Technology (MNIT), Jaipur, India; Bhandari, Mahabir S [ORNL

    2015-01-01

    The paper describes a parametric study developed to estimate the energy savings potential of a radiant cooling system installed in a commercial building in India. The study is based on numerical modeling of a radiant cooling system installed in an Information Technology (IT) office building sited in the composite climate of Hyderabad. To evaluate thermal performance and energy consumption, simulations were carried out using the ANSYS FLUENT and EnergyPlus softwares, respectively. The building model was calibrated using the measured data for the installed radiant system. Then this calibrated model was used to simulate the energy consumption of a building using a conventional all-air system to determine the proportional energy savings. For proper handling of the latent load, a dedicated outside air system (DOAS) was used as an alternative to Fan Coil Unit (FCU). A comparison of energy consumption calculated that the radiant system was 17.5 % more efficient than a conventional all-air system and that a 30% savings was achieved by using a DOAS system compared with a conventional system. Computational Fluid Dynamics (CFD) simulation was performed to evaluate indoor air quality and thermal comfort. It was found that a radiant system offers more uniform temperatures, as well as a better mean air temperature range, than a conventional system. To further enhance the energy savings in the radiant system, different operational strategies were analyzed based on thermal analysis using EnergyPlus. The energy savings achieved in this parametric run were more than 10% compared with a conventional all-air system.

  5. Spatial and temporal variations in indoor environmental conditions...

    Office of Scientific and Technical Information (OSTI)

    conditions, human occupancy, and operational characteristics in a new hospital building Prev Next Title: Spatial and temporal variations in indoor environmental...

  6. United States Office of Air and Radiation EPA 402-R-96-017 Environmental Protection Office of Solid Waste and

    E-Print Network [OSTI]

    United States Office of Air and Radiation EPA 402-R-96-017 Environmental Protection Office of Solid FOR RADIOACTIVELY CONTAMINATED SITES Prepared for U.S. Environmental Protection Agency Office of Air and Radiation Office of Radiation and Indoor Air Radiation Protection Division Center for Remediation Technology

  7. ETH ZurichEngineering Geodesy -Prof. Dr. H. Ingensand Overview of Current Indoor PositioningOverview of Current Indoor Positioning

    E-Print Network [OSTI]

    environments: indoors: household, office & factory outdoors: urban & rural dynamic Positioning Requirements, outdoor, urban, rural, remote) Active / passive sensors Accuracy (m ­ km) Application (industry, surveying

  8. Guide for interpreting reports from inspections/ investigations of indoor mold

    E-Print Network [OSTI]

    Levetin, Estelle

    Guide for interpreting reports from inspections/ investigations of indoor mold Editor: W. Elliott of indoor environments for mold growth increased dramatically in the past decade. Allergists can now for mold growth and robust enough to reliably detect mold growth. There is no standard method

  9. Modeling and Adaptive Control of Indoor Unmanned Aerial Vehicles

    E-Print Network [OSTI]

    Modeling and Adaptive Control of Indoor Unmanned Aerial Vehicles by Bernard Michini B;Modeling and Adaptive Control of Indoor Unmanned Aerial Vehicles by Bernard Michini Submitted for the degree of Master of Science in Aeronautics and Astronautics Abstract The operation of unmanned aerial

  10. A System for Building Semantic Maps of Indoor Environments

    E-Print Network [OSTI]

    Amigoni, Francesco

    A System for Building Semantic Maps of Indoor Environments Exploiting the Concept of Building of indoor environments refers to the task of build- ing representations of these environments that associate knowledge. Usually, the classifiers that build semantic maps process data coming from laser range scanners

  11. Model-Based Commissioning for Filters in Room Air Conditioners 

    E-Print Network [OSTI]

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

    2004-01-01

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

  12. Characterization of Polymer-Coated Glass as a Passive Air Sampler for

    E-Print Network [OSTI]

    Gobas, Frank

    Characterization of Polymer-Coated Glass as a Passive Air Sampler for Persistent Organic Pollutants or POGs as passive air samplers was investigated during an uptake experiment in an indoor environment construction materials and/ or are contained in common household products. Examples include brominated flame

  13. Study of the Influence of Air Supply Temperature on Air Distribution in the Run-through Large Space Architecture 

    E-Print Network [OSTI]

    Tian, Z.; Zhang, J.; Zhu, M.; He, J.

    2006-01-01

    museum) under winter operating conditions. At the same time, the indoor air flow regulations are summarized according to the simulation results. On the above basis, a new solution for airflow control of the connection in a run-through large space is put...

  14. Evaluation of a Combined Ultraviolet Photocatalytic Oxidation (UVPCO)/Chemisorbent Air Cleaner for Indoor Air Applications

    E-Print Network [OSTI]

    Hodgson, Alfred T.; Destaillats, Hugo; Hotchi, Toshifumi; Fisk, William J.

    2007-01-01

    recorded for both upstream and downstream sampling locationswere installed in the upstream and downstream transitions. Abuilding; temperature upstream and downstream of the UVPCO

  15. Energy Savings with Acceptable Indoor Air Quality Through Improved Air Flow Control in Residential Retrofit

    Broader source: Energy.gov [DOE]

    Lead Performer: Gas Technology Institute—Des Plaines, IL Partners: -- University of Illinois, Urbana IL -- Midwest Energy Efficiency Alliance, Chicago IL

  16. Study on the influence of CR-39 detector size on radon progeny detection in indoor environments

    SciTech Connect (OSTI)

    Pereira, L. A.; Hadler, J. C.; Lixandrão F, A. L.; Guedes, S.; Takizawa, R. H.

    2014-11-11

    It is well known that radon daughters up to {sup 214}Po are the real contaminants to be considered in case of indoor radon contamination. Assemblies consisting of 6 circular bare sheets of CR-39, a nuclear track detector, with radius varying from 0.15 to 1.2 cm were exposed far from any material surface for periods of approximately 6 months in 13 different indoor rooms (7 workplaces and 6 dwellings), where ventilation was moderate or poor. It was observed that track density was as greater as smaller was the detector radius. Track density data were fitted using an equation deduced based on the assumption that the behavior of radon and its progeny in the air was described by Fick's Law, i.e., when the main mechanism of transport of radon progeny in the air is diffusion. As many people spend great part of their time in closed or poorly ventilated environments, the confirmation they present equilibrium between radon and its progeny is an interesting start for dosimetric calculations concerning this contamination.

  17. Indoor Radon and Its Decay Products: Concentrations, Causes, and Control Strategies

    E-Print Network [OSTI]

    Nero, A.V.

    2008-01-01

    strategies for identifying high-radon homes· . . . . . . . .C. Behavior of radon indoors: generalgeographic radon modeling •••••••••••. •••••. •..•••. ••• D.

  18. Air Tightness of US Homes: Model Development

    SciTech Connect (OSTI)

    Sherman, Max H.

    2006-05-01

    Air tightness is an important property of building envelopes. It is a key factor in determining infiltration and related wall-performance properties such as indoor air quality, maintainability and moisture balance. Air leakage in U.S. houses consumes roughly 1/3 of the HVAC energy but provides most of the ventilation used to control IAQ. The Lawrence Berkeley National Laboratory has been gathering residential air leakage data from many sources and now has a database of more than 100,000 raw measurements. This paper uses that database to develop a model for estimating air leakage as a function of climate, building age, floor area, building height, floor type, energy-efficiency and low-income designations. The model developed can be used to estimate the leakage distribution of populations of houses.

  19. Measure Guideline: Guide to Attic Air Sealing

    SciTech Connect (OSTI)

    Lstiburek, Joseph

    2014-09-01

    The purpose of this measure guideline is to provide information and recommendations for the preparation work necessary prior to adding attic insulation. Even though the purpose of this guide is to save energy, health, safety, and durability should not be compromised by energy efficiency. Accordingly, combustion safety and ventilation for indoor air quality are addressed first. Durability and attic ventilation then follow. Finally, to maximize energy savings, air sealing is completed prior to insulating. The guide is intended for home remodelers, builders, insulation contractors, mechanical contractors, general contractors who have previously done remodeling and homeowners as a guide to the work that needs to be done.

  20. Indoor radon and decay products: Concentrations, causes, and control strategies

    SciTech Connect (OSTI)

    Nero, A.V.; Gadgil, A.J.; Nazaroff, W.W.; Revzan, K.L.

    1990-11-01

    This report is another in the on going technical report series that addresses various aspects of the DOE Radon Research Program. It provides an overview of what is known about the behavior of radon and its decay products in the indoor environment and examines the manner in which several important classes of factors -- structural, geological, and meteorological -- affect indoor radon concentrations. Information on US indoor radon concentrations, currently available monitoring methods and novel radon control strategies are also explored. 238 refs., 22 figs., 9 tabs.

  1. Clean Air Act of Montana (Montana)

    Broader source: Energy.gov [DOE]

    The purpose of the Clean Air Act of Montana is to achieve and maintain levels of air quality to "protect human health and safety and, to the greatest degree practicable, prevent injury to plant and...

  2. Air Leakage and Air Transfer Between Garage and Living Space

    SciTech Connect (OSTI)

    Rudd, A.

    2014-09-01

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

  3. Achieving Sustainability Cindy Carlsson

    E-Print Network [OSTI]

    Minnesota, University of

    Achieving Sustainability Cindy Carlsson Mn/DOT Office of Policy Analysis, Research and Innovation April 21, 2011 #12;Sustainability Is Not New Mn/DOT has long been a leader in CSS and environmental excellence. . . . . . so we're well along on the path to sustainability! #12;Today Sustainability is More

  4. Achieving Sustainability Cindy Carlsson

    E-Print Network [OSTI]

    Minnesota, University of

    Achieving Sustainability at MnDOT Cindy Carlsson MnDOT Office of Policy Analysis, Research and Innovation 22nd Annual Transportation Research Conference May 24, 2011 #12;Sustainable practices respect Sustainability #12;Environmental Sustainability Sustainable practices · Are compatible with and may enhance

  5. Key Research Results Achievement

    E-Print Network [OSTI]

    ) evaluated several common figures of merit used to compare the electrical and optical performance of TCsKey Research Results Achievement NREL research significantly contributed to inadequate existing not yet at performance levels of TCOs, demonstrate a much better combination of transmission

  6. Air Distribution and Microenvironment Evaluation of a Desktop Task Conditioning System 

    E-Print Network [OSTI]

    Zheng, G.

    2006-01-01

    equation model and two equation model. At present, k-? model is mostly adopted in indoor airflow[4]. Researches[5-6] obtained reliable results from applying k-? model in numerical simulation of three dimensional airflow field of air conditioning... of the task conditioning system. Key words: task air conditioning; numerical simulation; airflow; HDG; VDG; microenvironment 1. INTRODUCTION Total-volume ventilation and air conditioning of rooms are most used at present. Rooms are used...

  7. A model for an under floor air distribution system Y.J.P. Lina,*, P.F. Lindenb

    E-Print Network [OSTI]

    Linden, Paul F.

    ; improved thermal comfort; improved ventilation efficiency and indoor air quality; reduced energy useA model for an under floor air distribution system Y.J.P. Lina,*, P.F. Lindenb a Energy gains that occur above the occupied zone are isolated from the calculation of the required space supply

  8. Experimental Research of Air Source Heat Pump Frosting and Defrosting in a Double Stage-Coupling Heat Pump 

    E-Print Network [OSTI]

    Wang, Z.; Gu, J.; Lu, Z.

    2006-01-01

    In a double stage-coupling heat pump, comprising an air source and water loop heat pump, the 13~20 ? low temperature water is supplied to the water loop heat pump unit. The water loop heat pump can extract heat from the water and heat the indoor air...

  9. Los Alamos achieves 20-year low on radioactive air emissions

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

    of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy...

  10. Air Force Achieves Fuel Efficiency through Industry Best Practices...

    Office of Environmental Management (EM)

    Presentation Airlines & Aviation Alternative Fuels: Our Drive to Be Early Market Adopters Report of the DOE-DOE Workshop on Fuel Cells in Aviation: Workshop Summary and Action Plan...

  11. High-Efficiency Rooftop Air Conditioners: Innovative Procurement to Achieve

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journal Article)lasers (Journal Article)SciTech Connect HighHighin a Bent

  12. Los Alamos achieves 20-year low on radioactive air emissions

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCentermillion to local Unitedto STEM educationNews OverviewLosLANL

  13. A fine-grained geospatial representation and framework for large-scale indoor environments

    E-Print Network [OSTI]

    Battat, Jonathan

    2010-01-01

    This thesis describes a system and method for extending the current paradigm of geographic information systems (GIS) to support indoor environments. It introduces features and properties of indoor multi-building environments ...

  14. Neighborhood Healthy Homes Project The University of Connecticut Center for Indoor Environments and

    E-Print Network [OSTI]

    Oliver, Douglas L.

    Neighborhood Healthy Homes Project The University of Connecticut Center for Indoor Environments and Health is a partner on the Connecticut Children's Medical Center's Neighborhood Healthy Healthy Housing Inspection Manual Center for Indoor Environments and Health, University of Connecticut

  15. Indoor and Outdoor Spectroradiometer Intercomparison for Spectral Irradiance Measurement

    SciTech Connect (OSTI)

    Habte, A.; Andreas, A.; Ottoson, L.; Gueymard, C.; Fedor, G.; Fowler, S.; Peterson, J.; Naranen, R.; Kobashi, T.; Akiyama, A.; Takagi, S.

    2014-05-01

    This report details the global spectral irradiance intercomparison using spectroradiometers that was organized by the National Renewable Energy Laboratory's Solar Radiation Research Laboratory. The intercomparison was performed both indoors and outdoors on September 17, 2013. Five laboratories participated in the intercomparison using 10 spectroradiometers, and a coordinated measurement setup and a common platform were employed to compare spectral irradiances under both indoor and outdoor conditions. The intercomparison aimed to understand the performance of the different spectroradiometers and to share knowledge in making spectral irradiance measurements. This intercomparison was the first of its kind in the United States.

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

    E-Print Network [OSTI]

    Khattar, M. K.; Keebaugh, D.

    1987-01-01

    . Historic energy-use data and field-measured performance data are analyzed. The importance of certain design and operating parameters such as indoor airflow quantity, cooling coil apparatus dew-point temperature and the air-handling unit's fan operating...

  17. Transpired Solar Collector at NREL's Waste Handling Facility Uses Solar Energy to Heat Ventilation Air

    SciTech Connect (OSTI)

    2010-09-08

    The transpired solar collector was installed on NREL's Waste handling Facility (WHF) in 1990 to preheat ventilation air. The electrically heated WHF was an ideal candidate for the this technology - requiring a ventilation rate of 3,000 cubic feet per meter to maintain safe indoor conditions.

  18. Air-to-air turbocharged air cooling versus air-to-water turbocharged air cooling

    SciTech Connect (OSTI)

    Moranne, J.-P.; Lukas, J.J.

    1984-01-01

    In Europe, turbocharged air in diesel engines used in on-road vehicles is cooled only by air. It is expected that by 1990, ten to twelve percent of European heavy trucks with diesel engines will cool turbocharged air by water. Air-to-air turbocharges air cooling is reviewed and the evolution of air-to-water turbocharged air cooling presented before the two systems are compared.

  19. Experimental Evaluation of an Angle Based Indoor Localization System

    E-Print Network [OSTI]

    Nasipuri, Asis

    Experimental Evaluation of an Angle Based Indoor Localization System Asis Nasipuri and Ribal El available off-the-shelf components. Wireless sensor nodes equipped with photo sensors determine is required at the sensor nodes. The system also does not involve any centralized server or off

  20. A Sensor Placement Approach for the Monitoring of Indoor Scenes

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    needed by research projects on energy management (ERGDOM [1]) and on the medical monitoringA Sensor Placement Approach for the Monitoring of Indoor Scenes Pierre David, Vincent Idasiak of a French project, which aims at developing a new human presence sensor, we intend to design a sensor system

  1. Indoor exposure to radiation in the case of an outdoorrelease

    SciTech Connect (OSTI)

    Price, Phillip N.; Jayaraman, Buvana

    2006-06-01

    This report quantifies the effectiveness of ''sheltering in place'' in a commercial building in the event of an outdoor radiological release. The indoor exposure to airborne particles is calculated by solving the mass balance equation that accounts for the loss of particles due to deposition, filtration and exhaust. Quantitative estimates of shelter-inplace effectiveness are provided for typical commercial buildings.

  2. Energy and Indoor Environmental Quality Retrofits in Low-Income

    E-Print Network [OSTI]

    environmental measurements and collect energy consumption data. Based on analyses of the data collected fromEnergy and Indoor Environmental Quality Retrofits in Low-Income Apartments ENVIRONMENTAL ENERGY RESEARCH PIER Environmental Research www.energy.ca.gov/research/environmental August 2011 The Issue

  3. LuxTrace -Indoor Positioning Using Building Illumination

    E-Print Network [OSTI]

    investigations evaluate the potential for using solar modules alone as a low-cost alternative for estimating constraints of practical systems including, but not limited to, global cost, device volume and weight and used indoors. We investigate the use of wearable solar cells to track changing light conditions (a

  4. Using CO2 Lidar for Standoff Detection of a Perfluorocarbon Tracer in Air

    SciTech Connect (OSTI)

    Heiser,J.H.; Smith, S.; Sedlacek, A.

    2008-02-06

    The Tag, Track and Location System Program (TTL) is investigating the use of PFTs as tracers for tagging and tracking items of interest or fallen soldiers. In order for the tagging and tracking to be valuable there must be a location system that can detect the PFTs. This report details the development of an infrared lidar platform for standoff detection of PFTs released into the air from a tagged object or person. Furthering work performed using a table top lidar system in an indoor environment; a mobile mini lidar platform was assembled using an existing Raman lidar platform, a grating tunable CO{sub 2} IR laser, Judson HgCdTe detector and miscellaneous folding optics and electronics. The lidar achieved {approx}200 ppb-m sensitivity in laboratory and indoor testing and was then successfully demonstrated at an outdoor test. The lidar system was able to detect PFTs released into a vehicle from a distance of 100 meters. In its final, fully optimized configuration the lidar was capable of repeatedly detecting PFTs in the air released from tagged vehicles. Responses were immediate and clear. This report details the results of a proof-of-concept demonstration for standoff detection of a perfluorocarbon tracer (PFT) using infrared lidar. The project is part of the Tag, Track and Location System Program and was performed under a contract with Tracer Detection Technology Corp. with funding from the Office of Naval Research. A lidar capable of detecting PFT releases at distance was assembled by modifying an existing Raman lidar platform by incorporating a grating tunable CO{sub 2} IR laser, Judson HgCdTe detector and miscellaneous folding optics and electronics. The lidar achieved {approx}200 ppb-m sensitivity in laboratory and indoor testing and was successfully demonstrated at an outdoor test. The demonstration test (scripted by the sponsor) consisted of three parked cars, two of which were tagged with the PFT. The cars were located 70 (closest) to 100 meters (farthest) from the lidar (the lidar beam path was limited by site constraints and was {approx}100 meters). When one door of each of the cars was opened (sequentially), the lidar was clearly able to determine which vehicles had been tagged and which one was not. The lidar is probably capable of greater than 0.5 kilometer standoff distances based on the extreme amount of signal return achieved (so much that the system had to be de-tuned). The BNL lidar system, while optimized to the extent possible with available parts and budget, was not as sensitive as it could be. Steps to improve the lidar are detailed in this report and include using a better laser system (for more stable power output), dual wavelengths (to improve the sensitivity and allow common mode noise reduction and to allow the use of the lidar in a scanning configuration), heterodyning (for range resolved PFT detection) and an off-axis optical configuration (for improved near field sensitivity).

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

    SciTech Connect (OSTI)

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

    2008-04-04

    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.

  6. Experimental Study in Energy Performance of Temperature and Humidity Independent Control System with Multiple Split Air-Conditioning System 

    E-Print Network [OSTI]

    Kawano,M.

    2014-01-01

    ? [k W h] E le ct ri c p o w e r co n su m p ti o n ? kW h /y e a r? 12,000 10,0 8,0 6,0 4,0 2,0 0 Outdoor air-conditioning unit Indoor unit Outdoor unit A Humidity Control unit Indoor unit Outdoor unit Outdoor air-conditioning unit A Humidity... Control unit Indoor unit Outdoor unit Developed system onventional system E le ct ri c p o w e r co n su m p ti o n ? kW h /m o n th ? 1,400 1,200 1,000 800 600 400 200 0 E le ct ri c p o w e r co n su m p ti o n ? kW h /m o n th ? 1,400 1,200 1,000 800...

  7. Innovative Systems for Solar Air Conditioning of Buildings 

    E-Print Network [OSTI]

    Kessling, W.; Peltzer, M.

    2004-01-01

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

  8. CSP Tower Air Brayton Combustor

    Broader source: Energy.gov [DOE]

    This fact sheet describes a concentrating solar power tower air Brayton combustor project awarded under the DOE's 2012 SunShot CSP R&D award program. The team, led by the Southwest Research Institute, is working to develop an external combustor that allows for the mixing of CSP-heated air with natural gas in hybridized power plants. This project aims to increase the temperature capabilities of the CSP tower air receiver and gas turbine to 1,000ºC and achieve energy conversion efficiencies greater than 50%.

  9. Spatial and temporal variations in indoor environmental conditions...

    Office of Scientific and Technical Information (OSTI)

    beam-break counters; and outdoor air fractions in the heating, ventilating, and air-conditioning systems serving the sampled spaces. Measurements were made at 5-minute intervals...

  10. Guidelines for Selecting a Compressed Air System Service Provider

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

    facilities in achieving greater reliability, improved quality control, and lower operating costs for their compressed air systems. The CAC encourages facilities to take a...

  11. Transpired Solar Collector at NREL's Waste Handling Facility Uses Solar Energy to Heat Ventilation Air (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-09-01

    The transpired solar collector was installed on NREL's Waste handling Facility (WHF) in 1990 to preheat ventilation air. The electrically heated WHF was an ideal candidate for the this technology - requiring a ventilation rate of 3,000 cubic feet per meter to maintain safe indoor conditions.

  12. Measure Guideline: Guide to Attic Air Sealing

    SciTech Connect (OSTI)

    Lstiburek, J.

    2014-09-01

    The Guide to Attic Air Sealing was completed in 2010 and although not in the standard Measure Guideline format, is intended to be a Measure Guideline on Attic Air Sealing. The guide was reviewed during two industry stakeholders meetings held on December 18th, 2009 and January 15th, 2010, and modified based on the comments received. Please do not make comments on the Building America format of this document. The purpose of the Guide to Attic Air Sealing is to provide information and recommendations for the preparation work necessary prior to adding attic insulation. Even though the purpose of this guide is to save energy - health, safety and durability should not be compromised by energy efficiency. Accordingly, combustion safety and ventilation for indoor air quality are addressed first. Durability and attic ventilation then follow. Finally, to maximize energy savings, air sealing is completed prior to insulating. The guide is intended for home remodelers, builders, insulation contractors, mechanical contractors, general contractors who have previously done remodeling and homeowners as a guide to the work that needs to be done.

  13. Impact of Indoor Environment Improvement on Comfort and Productivity in a Chipboard Workplace 

    E-Print Network [OSTI]

    Li, Z.; Li, D.; Du, H.; Zhang, G.; Li, L.

    2006-01-01

    -147. [7]. Derek C. C, Li Baizhan. productivity and indoor environment [C]. Proceedings of Healthy Buildings. Espoo Finland: Vol.1, 1(2000): 629-634. ...

  14. Predicting New Hampshire Indoor Radon Concentrations from geologic information and other covariates

    E-Print Network [OSTI]

    Apte, M.G.

    2011-01-01

    38961 Predicting New Hampshire Indoor Radon ConcentrationsRadon Potential Assessment of New Hampshire, Geologic Radoncollected in the New Hampshire Radon Survey. Fig. 2. The

  15. Indoor exposure to radiation in the case of an outdoor release

    E-Print Network [OSTI]

    Price, Phillip N.; Jayaraman, Buvana

    2006-01-01

    Indoor C in Deposition Resuspension Exhaust Figure 1deposition loss rate to areas where resuspension may occur (h -1 ) r: resuspension rate from “temporary” areas (h -1 ) D

  16. Factors affecting the concentration of outdoor particles indoors (COPI): Identification of data needs and existing data

    E-Print Network [OSTI]

    2001-01-01

    surfaces, and resuspension activities lead to significantnear a secondary lead smelter, indicates that resuspensionresuspension. However, even moderate indoor activity, such as walking, can lead

  17. Estimating Environmental Exposures to Indoor Contaminants using Residential-Dust Samples

    E-Print Network [OSTI]

    Whitehead, Todd Patrick

    2011-01-01

    K. Polybrominated dioxins (PBDDs/DFs) and polybrominatedflame retardants and dioxin-like activities associated withU.S. indoor environments. Dioxin 2010: 30 th International

  18. Measured Impacts of Air Conditioner Condenser Shading 

    E-Print Network [OSTI]

    Parker, D. S.; Barkaszi, S. F.; Sonne, J. K.

    1996-01-01

    A study has been conducted by the Florida Solar Energy Center (FSEC) to examine if space cooling energy savings can be achieved from shading of residential air conditioning (AC) condenser units. The investigation consisted of before...

  19. Underfloor air distribution systems: Benefits and when to use the system in building design

    SciTech Connect (OSTI)

    McCarry, B.T. [Keen Engineering Co., Ltd., Vancouver, British Columbia (Canada)

    1995-12-31

    Underfloor air distribution systems are a viable option for mechanical system building design. They are comprised of raised floor panels with a supply air plenum in the void between the raised floor and the concrete structure. Supply air grilles are flush mounted to the floor to create a flat floor and walking surface. The engineering challenge is to determine when to use underfloor air distribution systems and how to effectively apply them. The best places to use this system are in owner-occupied buildings with a high churn rate and/or frequent technology changes. The benefits of this system include fresh air at the level where building occupants are located, forgiveness for variations in internal cooling loads, easy relocation of the supply air grilles to suit revised layouts, a reduction in energy costs for the mechanical system, and an improvement in indoor air quality.

  20. Air Quality

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications Traditional KnowledgeAgenda Agenda NERSC UserAgustin Mihi andAir Leaks inAir

  1. Indoor climate and moisture durability performances of houses with unvented attic roof constructions in a mixed-humid climate.

    SciTech Connect (OSTI)

    Pallin, Simon B. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Boudreaux, Philip R. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Jackson, Roderick K. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2014-10-01

    A sealed or unvented attic is an energy-efficient envelope component that can reduce the amount of energy a house consumes for space conditioning if the air handler and/or ducts are located in the attic. The attic is typically sealed by using spray foam on the underside of the roof deck and covering the soffit, ridge and gable vents to minimize air leakage from the attic to the outside. This approach can save up to 10% in space-conditioning energy when ducts are located in the attic (DOE 2013). Past research done by ORNL and Florida Solar Energy Center suggests that in more hot, humid climates, an unvented attic could potentially create a more humid, uncomfortable living environment than a vented attic (Colon 2011, Boudreaux, Pallin et al. 2013). Research showed that controlling the higher indoor humidity could reduce the energy savings from the sealed, unvented attic, which in turn would decrease the energy savings payback. Research also showed that the roof assembly (5.5 inches of open-cell foam, 1inch of closed-cell foam, OSB, felt paper, and asphalt shingles) stored moisture, thus acting as a moisture buffer. During the fall and winter, the roof assembly stored moisture and during the spring and summer it released moisture. This phenomenon is not seen in a vented attic, in which the air exchange rate to the outside is greater and, in the winter, helps to dehumidify the attic air. It was also seen that in a vented attic, the direction of water vapor diffusion is on average from the attic to the interior of the house. Air leakage from the attic to the interior also occurs during more of the year in a house with an unvented attic than in one with a vented attic. These discoveries show that the moisture dynamics in a house with an unvented attic are much different from those in a house with a vented attic. This study reports on a series of computer model investigations completed to determine the key variables impacting indoor comfort and the durability of roof assemblies against moisture. The key variables investigated were the leakage area from the attic to the outside, leakage area from the attic to the interior, leakage area from the interior to the outside, supply duct leakage in the attic, and interior moisture generation. These investigations are described in this report.

  2. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    is heavily weighted towards hydroelectricity, accounting forof rain to drive hydroelectricity generation) and inadequatelack of rain for the hydroelectricity based system) and poor

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

    E-Print Network [OSTI]

    Cairns, Elton J.

    2011-01-01

    and radon from the outgassing of building materials. Theproblems with the outgassing of formaldehyde from One methodbecause of formaldehyde outgassing from building materials

  4. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    Energy Group Consol Net Zero Energy Certified The ThousandEnergy Institute, 2012) Net-Zero Energy Certified (Zero Netare: Passive House Net-zero energy home Green certified home

  5. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    in building energy research projects, and have beenof “energy efficient”. Later research projects in Rochester,Research and the Literature .. 117 Table 40 Project Summary Information . 140 Table 41 Energy and

  6. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    variáveis ambientais, derivadas e calculadas, foramse calcular as variáveis derivadas (temperatura operativa,se calcular as variáveis derivadas (temperatura operativa,

  7. Integrating Human Indoor Air Pollutant Exposure within Life Cycle Impact Assessment

    E-Print Network [OSTI]

    Hellweg, Stefanie

    2010-01-01

    for Life Cycle Inventories. Ecoinvent v 2.0 . 2007 http://inventory databases, e.g. Ecoinvent (55) . Further work is

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

    E-Print Network [OSTI]

    Cairns, Elton J.

    2011-01-01

    1de hyde Adhesives Organics Paint Mercury, Organics Buildingorganics emitted from common building materials such as adhesives, sealants, paints,of paint, var- nish. pesticides, and various organic

  9. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    Baseboard heaters Portable space heater HRV supply duct # ofX HRV supply duct Portable space heater X X X Baseboard X Xwall heater – § I Portable space heater – § J Heat Pump

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

    E-Print Network [OSTI]

    Logue, J.M.

    2012-01-01

    Quality Benefits and Energy Costs of Mechanical VentilationQuality Benefits and Energy Costs of Mechanical VentilationQuality Benefits and Energy Costs of Mechanical Ventilation

  11. Factors Affecting Indoor Air Concentrations of Volatile Organic Compounds at a Site of Subsurface Gasoline Contamination

    E-Print Network [OSTI]

    Fischer, M.L.

    2011-01-01

    AT A SITE OF SUBSURFACE GASOLINE CONTAMINATION Marc L.A T A SITE OF SUBSURFACE GASOLINE CONTAMINATION Marc L.a site contaminated with gasoline. Although the high V O C

  12. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    of Improved Residential Furnace Filtration on Airbornefor next 15 minutes. Inspect furnace Inspect water heaterfor appliance monitoring: Furnace, water heater, range hood.

  13. 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,...

  14. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    de Conformidade para E?cieˆncia Energe´tica de Edif?´ciosEnergia (2007) Balanc¸o Energe´tico Nacional (available at:Niveaux de Rendement Energe´tique des Immeubles Commerciaux,

  15. United States Office of Radiation and October 1998 Environmental Protection Indoor Air

    E-Print Network [OSTI]

    -Agency Radiation Survey and Site Investigation Manual. This manual is a federal guidance document for investigating for effective restoration. CERMER provides assistance to EPA's Superfund and RCRA programs, Department of Energy

  16. Integrating Human Indoor Air Pollutant Exposure within Life Cycle Impact Assessment

    E-Print Network [OSTI]

    Hellweg, Stefanie

    2010-01-01

    Radioactivity in Life Cycle Assessment of Dwellings - PartInternational Journal of Life Cycle Assessment 2005, 10 ,Radioactivity in Life Cycle Assessment of Dwellings - Part

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

    E-Print Network [OSTI]

    Cairns, Elton J.

    2011-01-01

    as 0.5 ppm when one top burner was operated for less than 300.25 ach) when using two bUrners for 16 minutes. Similargas stove overs and top burners are shown in Tables 4 and 5,

  18. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    iii. Serial number: iv. Burner rating: Visual Inspection: c.doors present on the burner compartments? _____Yes _____Nocompartment, with no burners on. iv. Light the 4 burners on

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

    E-Print Network [OSTI]

    Young, Rodger A.

    2013-01-01

    same. Carbon monoxide ~s produced from incomplete combustionmonoxide, carbon dioxide, and many organic compounds are products of combustion.

  20. IMPACT OF REDUCED INFILTRATION AND VENTILATION ON INDOOR AIR QUALITY IN RESIDENTIAL BUILDINGS

    E-Print Network [OSTI]

    Hollowell, Craig D.

    2011-01-01

    and Carbon Monoxide Several recent field and laboratory studies at various laboratories have focused on combustion-

  1. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    incomplete combustion of carbon-based fuels. Carbon monoxideCombustion Appliance Zone California Energy Commission Central Fan Integrated Supply Cubic Feet per Minute Carbon Monoxide

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

    E-Print Network [OSTI]

    Logue, J.M.

    2012-01-01

    was assumed that a heat recovery ventilator (HRV) was usedand that the HRV was connected to the home’s central heating

  3. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    significantly less than expected. HRV+CFIS Airflows measuredthroughout the home were less than expected. HRVERV HRV Ductwork was connected to the unit backwards.

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

    E-Print Network [OSTI]

    Cairns, Elton J.

    2011-01-01

    and DiMattio, American Industrial Hygiene Association, "76:471. American Industrial Hygiene Association, "Community

  5. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    actions, including: bioclimatic architecture, benchmarkingin the design of bioclimatic architecture. It is indeed a

  6. Integrating Human Indoor Air Pollutant Exposure within Life Cycle Impact Assessment

    E-Print Network [OSTI]

    Hellweg, Stefanie

    2010-01-01

    to Chemicals with LCA: The Examples of Trichloroethylene andin Life Cycle Assessment (LCA), may result in product orand outdoor exposure in LCA, within the UNEP/SETAC Life

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

    E-Print Network [OSTI]

    Cairns, Elton J.

    2011-01-01

    operating system and the INGRES data base management system,management system to support a single controlled vocabulary able to index any bibliographic citation maintained in the data base.

  8. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    used either natural gas or propane for cooktop fuel. Of the1302 Cooktop Fuel Type Gas Propane Electric - ResistanceFuel Type Gas Electric Propane Cooktop and Oven Together

  9. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    or another appliance? No propane All combustion appliancesuse propane Some combustion appliances use propane Don’t

  10. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    and optional sustainability and energy performance standardsSustainability Classification Deep Energy Retrofit Green Certified Passive House Net-Zero Energy “Very High Performance”sustainability improvements in existing housing is central to current models for green building and high performance

  11. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    Occupant Behavior ..commissioning and occupant behavior caused other potentialas an option for tracking occupant behavior, but they were

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

    E-Print Network [OSTI]

    Cairns, Elton J.

    2011-01-01

    RESIDENTiAL ENERGY CONSUMPTION DATA (1976) TOTAL 18,95 Quadsregulations; COMMERCIAL ENERGY CONSUMPTION DATA (1976) TOTAL

  13. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    direct consequence of the energy crisis in 2001. As a resultan emergent topic after the energy crisis in 2001. Thermaland the recent energy crises [15] Brazilian Government has

  14. DESIGN OF A MOBILE LABORATORY FOR VENTILATION STUDIES AND INDOOR AIR POLLUTION MONITORING

    E-Print Network [OSTI]

    Berk, James V.

    2011-01-01

    210 GA 2/0 GA I I I I C I 20A Instrument regulated pwr I 15AInstrument non-regulated pwr 20A I • I I 30 A twistA twist lock tool box Pump pwr Zero gas generated pwr

  15. DESIGN OF A MOBILE LABORATORY FOR VENTILATION STUDIES AND INDOOR AIR POLLUTION MONITORING

    E-Print Network [OSTI]

    Berk, James V.

    2011-01-01

    i co i 2KVA sou reg. X Instrument regulated pwr 20A 20AInstrument non-regulated pwr 30A twist lock tool box 30 Alock ( __J~ v x-k \\^_J~ Pump pwr 30A Zero gas generated pwr

  16. Heat Pipe Impact on Dehumidification, Indoor Air Quality and Energy Savings 

    E-Print Network [OSTI]

    Cooper, J. T.

    1996-01-01

    for dehumidification, precooling, reheating and heat recovery. FIGURE 1. A SIMPLE HEAT BACKGROUND AND OVERVIEW The use of heat pipes dates back to the turn of the century. Heat pipes, also termed Perkins pipes, are heat transfer devices which work by means... stream_source_info ESL-HH-96-05-44.pdf.txt stream_content_type text/plain stream_size 15385 Content-Encoding UTF-8 stream_name ESL-HH-96-05-44.pdf.txt Content-Type text/plain; charset=UTF-8 HEAT PIPE IMPACT...

  17. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    satisfaction. • In Brazil, energy efficiency became ancontribute to energy savings in Brazil, focusing onand renewable energy use in Brazil. Energy Policy 32: [25

  18. Dynamic predictive clothing insulation models based on outdoor air and indoor operative temperatures

    E-Print Network [OSTI]

    Schiavon, Stefano; Lee, Kwang Ho

    2012-01-01

    dx.doi.org/10.1016/j.buildenv.2012.08.024 [14] ANSI/ASHRAE.ANSI/ASHRAE 55-1992: Thermal environmental conditions forAtlanta 1992. [15] ASHRAE. ANSI/ASHRAE Standard 55-1981:

  19. Predictive clothing insulation model based on outdoor air and indoor operative temperatures

    E-Print Network [OSTI]

    Schiavon, Stefano; Lee, Kwang Ho

    2012-01-01

    Atlanta. ANSI/ASHRAE. (2010) ANSI/ASHRAE 55-2010: ThermalAtlanta. ASHRAE. (1981) ANSI/ASHRAE Standard 55-1981:impact on thermal comfort (ANSI/ASHRAE, 2010). Clothing

  20. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    Departamento de Arquitetura e Urbanismo Universidade Federaldo Curso de Arquitetura e Urbanismo da Universidade FederalDepartamento de Arquitetura e Urbanismo, lsb@ctec.ufal.br (

  1. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    sources. Brazil’s total hydroelectric power potential is 260large proportion of hydroelectric power potential is in thetotal. Brazil’s total hydroelectric power potential is 260

  2. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    a 3,785 L (1,000 gal) solar storage tank to supply spacestorage tanks serve as solar storage, pre-heat, buffer andthe incorporation of solar energy demands storage MS Thesis,

  3. Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes

    E-Print Network [OSTI]

    Less, Brennan

    2012-01-01

    Cook top ventilation in passive House/LEED home. (2010).Berkeley National Lab. Passive House Institute U.S. (2011).What is a passive house? Retrieved 11/23, 2012, from http://

  4. DRAFT 11/09/2010 PLEASE DO NOT CITE OR QUOTE Indoor Air Quality (IAQ)

    E-Print Network [OSTI]

    , industry standard organizations, state and local programs, and the home energy retrofit industry to better new EPA regulatory standards. · Provide guidance for diagnosing occupant health problems or building; help improve the quality of the work performed in this expanding industry; promote occupant health

  5. United States Office of Radiation and EP A Environmental Protection Indoor Air August 1997

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouthReport for the WeldonB10081278 United States Government.EP A

  6. ASHRAE Standard 62.2. Ventilation and Acceptable Indoor Air Quality in Low-

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p u t y A s sconveyance of9, 2013 ASER Web Addresses

  7. DOE ZERH Webinar: Ventilation and Filtration Strategies with Indoor airPLUS

    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:FinancingPetroleum Based| Department8, 2015 GATEWAY Takes 9. TechnologyDOEPart II(Text Version) |

  8. Indoor airPLUS Construction Specifications Version 1 (Rev. 02) | Department

    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 DeliciousMathematicsEnergy HeadquartersFuelBConservation StandardsEnergy In2008Department ofIndividualof

  9. RADON: A BIBLIOGRAPHY

    E-Print Network [OSTI]

    Lepman, S.R.

    2010-01-01

    G. W. Combustion-generated indoor air pollution: ] . Fieldcontrol of air pollution from indoor combustion sources.

  10. Indoor Residential Chemical Exposures as Risk Factors for Asthma and Allergy in Infants and Children: a Review

    E-Print Network [OSTI]

    Mendell, M.J.

    2006-01-01

    organic compounds such as formaldehyde, benzene, and phthalates, indoor materials or finishes such as carpet, flexible flooring, paint,

  11. Community-wide benefits of targeted indoor residual spray for malaria control in the Western Kenya Highland

    E-Print Network [OSTI]

    Zhou, Guofa; Githeko, Andrew K; Minakawa, Noboru; Yan, Guiyun

    2010-01-01

    ecological settings [4]. Among those control measures, insecticide- treated bed nets (ITNs) and indoor residual-house

  12. The genotoxic contribution of wood smoke to indoor respirable suspended particles

    SciTech Connect (OSTI)

    Boone, P.M. (John B. Pierce Foundation Laboratory, New Haven, CT (USA)); Rossman, T.G. (New York Univ. Medical Center, New York (USA)); Daisey, J.M. (Lawrence Berkeley Laboratory, CA (USA))

    1989-01-01

    The effect of wood burning stoves on the genotoxicity of indoor respirable organic matter was investigated for four homes during the winter and spring of 1986. Paired samples, one collected when the stove was not used and one when wood was burned, were extracted with dichloromethane and acetone. Aliquots of the dichloromethane extracts were analyzed with and without metabolic activation using the Microscreen bioassay. The Microscreen is a rapid, sensitive bioassay which measures a broad genotoxic endpoint, {lambda}-prophage induction. Per nanogram of organic material, wood smoke proved to be a major source of indirect (observed with metabolic activation) but not direct genotoxins in homes. The increase in indirect genotoxicity for extracts from aerosol containing wood smoke is probably due to higher concentrations of polycyclic aromatic hydrocarbons in the wood smoke aerosol as well as other unidentified classes. The direct genotoxicity observed for extracts of aerosol not containing wood smoke decreased with metabolic activation. This direct genotoxicity may be related to cooking activities in the homes. The trends in genotoxicity observed per nanogram of organic material are more pronounced when expressed per m{sup 3} of air due to the higher percentage of extractable material in aerosol containing wood smoke.

  13. Vol. 39, No. 11 ACTA AUTOMATICA SINICA November, 2013 A Comprehensive UAV Indoor Navigation System

    E-Print Network [OSTI]

    Benmei, Chen

    Vol. 39, No. 11 ACTA AUTOMATICA SINICA November, 2013 A Comprehensive UAV Indoor Navigation System for an indoor quadrotor unmanned aerial vehicle (UAV) system. Three main sensors are used onboard the quadrotor. With this setup, the UAV is able to estimate its own velocity and position robustly, while flying along

  14. Passive Ozone Control Through Use of Reactive Indoor Wall and Ceiling Materials

    E-Print Network [OSTI]

    Siegel, Jeffrey

    Passive Ozone Control Through Use of Reactive Indoor Wall and Ceiling Materials Paper # 715 Donna A) Austin, TX 78758, USA ABSTRACT Most ozone exposure occurs indoors even though some surfaces consume ozone and reduce its concentration relative to outdoors. Ozone consumption often results in emissions of secondary

  15. Particle resuspension from indoor flooring materials James H. Lohaus, Atila Novoselac and Jeffrey A. Siegel*

    E-Print Network [OSTI]

    Siegel, Jeffrey

    Particle resuspension from indoor flooring materials James H. Lohaus, Atila Novoselac and Jeffrey A@mail.utexas.edu Keywords: Fluid dynamics, Indoor surfaces, Particle experiments Introduction Particle resuspension from for supermicron particles. Resuspension is usually reported either as a critical velocity, the velocity at which

  16. UNIVERSITY OF CALGARY Integration of WiFi and MEMS Sensors for Indoor Navigation

    E-Print Network [OSTI]

    Calgary, University of

    UNIVERSITY OF CALGARY Integration of WiFi and MEMS Sensors for Indoor Navigation by Yuan Zhuang of MEMS sensors and WiFi offer an efficient integration for indoor navigation applications. Two automatic-coupled) integration and TC (Tightly-coupled) integration are implemented for WiFi and MEMS sensors to further limit

  17. Characterization of the Impact of Indoor Doppler Errors on Pedestrian Dead Reckoning

    E-Print Network [OSTI]

    Calgary, University of

    Characterization of the Impact of Indoor Doppler Errors on Pedestrian Dead Reckoning Valérie, University of Calgary 2500 University Drive NW Calgary, Alberta, Canada, T2N 1N4 Abstract--Indoor pedestrian on a Pedestrian Dead Reckoning (PDR) navigation filter is investigated. Doppler errors are simulated using

  18. Targeted Autonomous Indoor Flight of a Rotary-Wing MAV Svetlana Potyagaylo

    E-Print Network [OSTI]

    Kanza, Yaron

    Targeted Autonomous Indoor Flight of a Rotary-Wing MAV Svetlana Potyagaylo PhD Student Faculty of Aerospace Engineering svetap@tx.technion.ac.il Omri Rand Professor Faculty of Aerospace Engineering omri for Autonomous Rotary-Wing Micro Aerial Vehicles (RW MAVs) in indoor GPS-denied environments. In such missions

  19. Mission Specification and Control for Unmanned Aerial and Ground Vehicles for Indoor Target Discovery and Tracking

    E-Print Network [OSTI]

    Mission Specification and Control for Unmanned Aerial and Ground Vehicles for Indoor Target of unmanned vehicles in mixed indoor/outdoor reconnaissance scenarios. We outline the tools and techniques microautonomous vehicles become available. In the scenarios that serve as the focus of this paper, an unmanned

  20. Air blast type coal slurry fuel injector

    DOE Patents [OSTI]

    Phatak, R.G.

    1984-08-31

    A device to atomize and inject a coal slurry in the combustion chamber of an internal combustion engine is disclosed which eliminates the use of a conventional fuel injection pump/nozzle. The injector involves the use of compressed air to atomize and inject the coal slurry and like fuels. In one embodiment, the breaking and atomization of the fuel is achieved with the help of perforated discs and compressed air. In another embodiment, a cone shaped aspirator is used to achieve the breaking and atomization of the fuel. The compressed air protects critical bearing areas of the injector.

  1. Air blast type coal slurry fuel injector

    DOE Patents [OSTI]

    Phatak, Ramkrishna G. (San Antonio, TX)

    1986-01-01

    A device to atomize and inject a coal slurry in the combustion chamber of an internal combustion engine, and which eliminates the use of a conventional fuel injection pump/nozzle. The injector involves the use of compressed air to atomize and inject the coal slurry and like fuels. In one embodiment, the breaking and atomization of the fuel is achieved with the help of perforated discs and compressed air. In another embodiment, a cone shaped aspirator is used to achieve the breaking and atomization of the fuel. The compressed air protects critical bearing areas of the injector.

  2. NERSC Achievement Award Recipient Presentations

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesof Energy Moving ForwardAchievement Awards NERSC Achievement

  3. A source of PCB contamination in modified high-volume air samplers

    SciTech Connect (OSTI)

    Basu, I.; O'Dell, J.M.; Arnold, K.; Hites, R.A.

    2000-02-01

    Modified Anderson High Volume (Hi-Vol) air samplers are widely used for the collection of semi-volatile organic compounds (such as PCBs) from air. The foam gasket near the main air flow path in these samplers can become contaminated with PCBs if the sampler or the gasket is stored at a location with high indoor air PCB levels. Once the gasket is contaminated, it releases PCBs back into the air stream during sampling, and as a result, incorrectly high air PCB concentrations are measured. This paper presents data demonstrating this contamination problem using measurements from two Integrated Atmospheric Deposition Network sites: one at Sleeping Bear Dunes on Lake Michigan and the other at Point Petre on Lake Ontario. The authors recommend that these gaskets be replaced by Teflon tape and that the storage history of each sampler be carefully tracked.

  4. Industrial Scale Demonstration of Smart Manufacturing Achieving...

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

    of Smart Manufacturing Achieving Transformational Energy Productivity Gains Industrial Scale Demonstration of Smart Manufacturing Achieving Transformational Energy...

  5. RADON AND ALDEHYDE CONCENTRATIONS IN THE INDOOR ENVIRONMENT

    E-Print Network [OSTI]

    Moschandreas, D.J.

    2010-01-01

    present study controlled only the air infiltration rate, i tinfiltration rates and contaminant levels. The objectives of the study

  6. Determining the Right Air Quality for Your Compressed Air System...

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

    Applications Plant Air Air tools, general plant air Instrument Air Laboratories, paint spraying, powder coating, climate control Process Air Food and pharmaceutical process...

  7. Ventilation Air Preconditioning Systems 

    E-Print Network [OSTI]

    Khattar, M.; Brandemuehl, M. J.

    1996-01-01

    Increased outside ventilation air requirements demand special attention to how that air will be conditioned. In winter, the incoming air may need preheating; in summer. the mixed air may be too humid for effective dehumidification. Part...

  8. Air Quality

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O O D S TA I N P A T T E R N AManaged bynuevo sistemaAir

  9. 2013 R&D 100 Award: DNATrax could revolutionize air quality detection and tracking

    SciTech Connect (OSTI)

    Farquar, George

    2014-04-03

    A team of LLNL scientists and engineers has developed a safe and versatile material, known as DNA Tagged Reagents for Aerosol Experiments (DNATrax), that can be used to reliably and rapidly diagnose airflow patterns and problems in both indoor and outdoor venues. Until DNATrax particles were developed, no rapid or safe way existed to validate air transport models with realistic particles in the range of 1-10 microns. Successful DNATrax testing was conducted at the Pentagon in November 2012 in conjunction with the Pentagon Force Protection Agency. This study enhanced the team's understanding of indoor ventilation environments created by heating, ventilation and air conditioning (HVAC) systems. DNATrax are particles comprised of sugar and synthetic DNA that serve as a bar code for the particle. The potential for creating unique bar-coded particles is virtually unlimited, thus allowing for simultaneous and repeated releases, which dramatically reduces the costs associated with conducting tests for contaminants. Among the applications for the new material are indoor air quality detection, for homes, offices, ships and airplanes; urban particulate tracking, for subway stations, train stations, and convention centers; environmental release tracking; and oil and gas uses, including fracking, to better track fluid flow.

  10. 2013 R&D 100 Award: DNATrax could revolutionize air quality detection and tracking

    ScienceCinema (OSTI)

    Farquar, George

    2014-07-22

    A team of LLNL scientists and engineers has developed a safe and versatile material, known as DNA Tagged Reagents for Aerosol Experiments (DNATrax), that can be used to reliably and rapidly diagnose airflow patterns and problems in both indoor and outdoor venues. Until DNATrax particles were developed, no rapid or safe way existed to validate air transport models with realistic particles in the range of 1-10 microns. Successful DNATrax testing was conducted at the Pentagon in November 2012 in conjunction with the Pentagon Force Protection Agency. This study enhanced the team's understanding of indoor ventilation environments created by heating, ventilation and air conditioning (HVAC) systems. DNATrax are particles comprised of sugar and synthetic DNA that serve as a bar code for the particle. The potential for creating unique bar-coded particles is virtually unlimited, thus allowing for simultaneous and repeated releases, which dramatically reduces the costs associated with conducting tests for contaminants. Among the applications for the new material are indoor air quality detection, for homes, offices, ships and airplanes; urban particulate tracking, for subway stations, train stations, and convention centers; environmental release tracking; and oil and gas uses, including fracking, to better track fluid flow.

  11. Study of the atmospheric chemistry of radon progeny in laboratory and real indoor atmospheres. Final project report

    SciTech Connect (OSTI)

    Hopke, P.K.

    1996-09-01

    This report completes Clarkson University`s study of the chemical and physical behavior of the {sup 218}Po atom immediately following its formation by the alpha decay of radon. Because small changes in size for activity in the sub-10 nm size range result in large changes in the delivered dose per unit exposure, this behavior must be understood if the exposure to radon progeny and it dose to the cells in the respiratory tract are to be fully assessed. In order to pursue this general goal, two areas of radon progeny behavior are being pursued; laboratory studies under controlled conditions to better understand the fundamental physical and chemical processes that affect the progeny`s atmospheric behavior and studies in actual indoor environments to develop a better assessment of the exposure of the occupants of that space to the size and concentration of the indoor radioactive aerosol. Thus, two sets of specific goals have been established for this project. The specific tasks of the controlled laboratory studies are (1) Determine the formation rates of {circ}OH radicals formed by the radiolysis of air following radon decay; (2) Examine the formation of particles by the radiolytic oxidation of substances like SO{sub 2}, ethylene, and H{sub 2}S to lower vapor pressure compounds and determine the role of gas phase additives such as H{sub 2}O and NH{sub 3} in determining the particle size; (3) Measure the rate of ion-induced nucleation using a thermal diffusion cloud chamber, and (4) Measure the neutralization rate of {sup 218}PoO{sub x}{sup +} in O{sub 2} at low radon concentrations.

  12. Indoor environment quality in LEED buildings: Understanding conditions affecting performance

    E-Print Network [OSTI]

    Walker, Kristine

    2015-01-01

    group felt that the building automation or management systemhad issues with the building automation systems, a lack ofbe provided from the building automation systems and no air

  13. Indoor environment quality in LEED buildings: Understanding conditions affecting performance

    E-Print Network [OSTI]

    Walker, Kristine

    2015-01-01

    review for each building based on their design approach to LEED,reviews of project and site documentation. The air-quality LEED

  14. Search of medical literature for indoor carbon monoxide exposure

    SciTech Connect (OSTI)

    Brennan, T.; Ivanovich, M.

    1995-12-01

    This report documents a literature search on carbon monoxide. The search was limited to the medical and toxicological databases at the National Library of Medicine (MEDLARS). The databases searched were Medline, Toxline and TOXNET. Searches were performed using a variety of strategies. Combinations of the following keywords were used: carbon, monoxide, accidental, residential, occult, diagnosis, misdiagnosis, heating, furnace, and indoor. The literature was searched from 1966 to the present. Over 1000 references were identified and summarized using the following abbreviations: The major findings of the search are: (1) Acute and subacute carbon monoxide exposures result in a large number of symptoms affecting the brain, kidneys, respiratory system, retina, and motor functions. (2) Acute and subacute carbon monoxide (CO) poisonings have been misdiagnosed on many occasions. (3) Very few systematic investigations have been made into the frequency and consequences of carbon monoxide poisonings.

  15. The effects of indoor pollution on Arizona children

    SciTech Connect (OSTI)

    Dodge, R.

    1982-05-01

    The respiratory health of a large group of Arizona school children who have been exposed to indoor pollutants-tobacco smoke and home cooking fumes-is reported. A significant relationship was found between parental smoking and symptoms of cough, wheeze, and sputum production. Also, children in homes where gas cooking fuel was used had higher rates of cough than children in homes where electricity was used. No differences in pulmonary function or yearly lung growth rates occurred among subjects grouped by exposure to tobacco smoke or cooking fuel. Thus, parental smoking and home cooking fuel affected cross-sectional respiratory symptom rates in a large group of Arizona school children. Study of pulmonary function, however, revealed no lung function or lung growth effects during 4 yr of study.

  16. Using Data to Achieve Anticipated Savings

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

    Capabilities Build 9 Using Data to Achieve Anticipated Savings Way Ahead - Navy "SmartGrid" Enabling Capabilities 10 October 13, 2009 Using Data to Achieve Anticipated Savings...

  17. Cleanup Contractor Achieves 'Elite' Nuclear Material Accountability...

    Office of Environmental Management (EM)

    Cleanup Contractor Achieves 'Elite' Nuclear Material Accountability Status Cleanup Contractor Achieves 'Elite' Nuclear Material Accountability Status September 30, 2014 - 12:00pm...

  18. Boiler Maximum Achievable Control Technology (MACT) Technical...

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

    Boiler Maximum Achievable Control Technology (MACT) Technical Assistance - Fact Sheet, April 2015 Boiler Maximum Achievable Control Technology (MACT) Technical Assistance - Fact...

  19. Risk Assessment Scheme of Infection Transmission Indoors Incorporating the Impact of Resuspension

    E-Print Network [OSTI]

    You, Siming; Wan, Man Pun

    2015-01-01

    models for fine particle resuspension from indoor surfaces.Reed J, Hall D. On the resuspension of small parti- cles byFichman M, Gutfinger C. Resuspension of par- ticulates from

  20. Analysis of realistic ultrawideband indoor communication channels by using an efficient ray-tracing based method

    E-Print Network [OSTI]

    Malik, Wasim Q.

    A fundamental step in ultrawideband (UWB) communication system design involves the characterization of the indoor propagation channel. In this paper, we show that the UWB propagation channel parameters can be accurately ...

  1. Ensuring Healthy American Indian Generations for Tomorrow through Safe and Healthy Indoor Environments

    E-Print Network [OSTI]

    Pacheco, Joseph A.; Pacheco, Christina M.; Lewis, Charley Sabe; Williams, Chandler; Barnes, Charles; Rosenwasser, Lanny J.; Choi, Won S.; Daley, Christine M.

    2015-03-04

    when recruiting AI for a home-and employment-based environmental health assessments, highlight major successes, and propose recommendations for future indoor environmental health studies. The Center for American Indian Community Health (CAICH...

  2. A Pilot Study of the Effectiveness of Indoor Plants for Removal of Volatile Organic Compounds in Indoor Air in a Seven-Story Office Building

    E-Print Network [OSTI]

    Apte, Michael G.

    2010-01-01

    chloride o-xylene Phenol Styrene Tetrachloroethylene LOQ cnonanal o-xylene phenol styrene Toluene a TXIB a 2,2,4-points, although styrene concentrations  increased by 

  3. Metal-Air Batteries

    SciTech Connect (OSTI)

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

    2011-08-01

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

  4. Feasibility of air capture

    E-Print Network [OSTI]

    Ranjan, Manya

    2010-01-01

    Capturing CO2 from air, referred to as Air Capture, is being proposed as a viable climate change mitigation technology. The two major benefits of air capture, reported in literature, are that it allows us to reduce the ...

  5. Primary zone air proportioner

    DOE Patents [OSTI]

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

    1982-10-12

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

  6. Biological Air Emissions Control

    Office of Energy Efficiency and Renewable Energy (EERE)

    Air quality standards are becoming more stringent for the U.S. wood products industry. Emissions of volatile organic compounds (VOCs) and hazardous air pollutants (HAPs) (including methanol,...

  7. Chapter 21 Air Quality

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

    are in the PortlandVancouver metro area where there are more industrial sources of air pollution and higher levels of traffic congestion that create more air emissions....

  8. Bubbles Help Break Energy Storage Record for Lithium Air-Batteries

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

    in PNNL's lithium-air battery research. "This will greatly reduce production costs and increase the adoptability." Although the battery is achieving the highest level of energy...

  9. High Efficiency Room Air Conditioner

    SciTech Connect (OSTI)

    Bansal, Pradeep

    2015-01-01

    This project was undertaken as a CRADA project between UT-Battelle and Geberal Electric Company and was funded by Department of Energy to design and develop of a high efficiency room air conditioner. A number of novel elements were investigated to improve the energy efficiency of a state-of-the-art WAC with base capacity of 10,000 BTU/h. One of the major modifications was made by downgrading its capacity from 10,000 BTU/hr to 8,000 BTU/hr by replacing the original compressor with a lower capacity (8,000 BTU/hr) but high efficiency compressor having an EER of 9.7 as compared with 9.3 of the original compressor. However, all heat exchangers from the original unit were retained to provide higher EER. The other subsequent major modifications included- (i) the AC fan motor was replaced by a brushless high efficiency ECM motor along with its fan housing, (ii) the capillary tube was replaced with a needle valve to better control the refrigerant flow and refrigerant set points, and (iii) the unit was tested with a drop-in environmentally friendly binary mixture of R32 (90% molar concentration)/R125 (10% molar concentration). The WAC was tested in the environmental chambers at ORNL as per the design rating conditions of AHAM/ASHRAE (Outdoor- 95F and 40%RH, Indoor- 80F, 51.5%RH). All these modifications resulted in enhancing the EER of the WAC by up to 25%.

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

    SciTech Connect (OSTI)

    Not Available

    2014-11-01

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

  11. Indoor Measurements of Environmental Tobacco Smoke Final Report to the Tobacco Related Disease Research Program

    SciTech Connect (OSTI)

    Apte, Michael G.; Gundel, Lara A.; Dod, Raymond L.; Russell, Marion L.; Singer, Brett C.; Sohn, Michael D.; Sullivan, Douglas P.; Chang, Gee-Minn; Sextro, Richard G.

    2004-03-02

    The objective of this research project was to improve the basis for estimating environmental tobacco smoke (ETS) exposures in a variety of indoor environments. The research utilized experiments conducted in both laboratory and ''real-world'' buildings to (1) study the transport of ETS species from room to room, (2) examine the viability of using various chemical markers as tracers for ETS, and (3) to evaluate to what extent re-emission of ETS components from indoor surfaces might add to the ETS exposure estimates. A three-room environmental chamber was used to examine multi-zone transport and behavior of ETS and its tracers. One room (simulating a smoker's living room) was extensively conditioned with ETS, while a corridor and a second room (simulating a child's bedroom) remained smoking-free. A series of 5 sets of replicate experiments were conducted under different door opening and flow configurations: sealed, leaky, slightly ajar, wide open, and under forced air-flow conditions. When the doors between the rooms were slightly ajar the particles dispersed into the other rooms, eventually reaching the same concentration. The particle size distribution took the same form in each room, although the total numbers of particles in each room depended on the door configurations. The particle number size distribution moved towards somewhat larger particles as the ETS aged. We also successfully modeled the inter-room transport of ETS particles from first principles--using size fractionated particle emission factors, predicted deposition rates, and thermal temperature gradient driven inter-room flows, This validation improved our understanding of bulk inter-room ETS particle transport. Four chemical tracers were examined: ultraviolet-absorbing particulate matter (UVPM), fluorescent particulate matter (FPM), nicotine and solanesol. Both (UVPM) and (FPM) traced the transport of ETS particles into the non-smoking areas. Nicotine, on the other hand, quickly adsorbed on unconditioned surfaces so that nicotine concentrations in these rooms remained very low, even during smoking episodes. These findings suggest that using nicotine as a tracer of ETS particle concentrations may yield misleading concentration and/or exposure estimates. The results of the solanesol analyses were compromised, apparently by exposure to light during collection (lights in the chambers were always on during the experiments). This may mean that the use of solanesol as a tracer is impractical in ''real-world'' conditions. In the final phase of the project we conducted measurements of ETS particles and tracers in three residences occupied by smokers who had joined a smoking cessation program. As a pilot study, its objective was to improve our understanding of how ETS aerosols are transported in a small number of homes (and thus, whether limiting smoking to certain areas has an effect on ETS exposures in other parts of the building). As with the chamber studies, we examined whether measurements of various chemical tracers, such as nicotine, solanesol, FPM and UVPM, could be used to accurately predict ETS concentrations and potential exposures in ''real-world'' settings, as has been suggested by several authors. The ultimate goal of these efforts, and a future larger multiple house study, is to improve the basis for estimating ETS exposures to the general public. Because we only studied three houses no firm conclusions can be developed from our data. However, the results for the ETS tracers are essentially the same as those for the chamber experiments. The use of nicotine was problematic as a marker for ETS exposure. In the smoking areas of the homes, nicotine appeared to be a suitable indicator; however in the non-smoking regions, nicotine behavior was very inconsistent. The other tracers, UVPM and FPM, provided a better basis for estimating ETS exposures in the ''real world''. The use of solanesol was compromised--as it had been in the chamber experiments.

  12. Laboratory Performance Testing of Residential Window Air Conditioners

    SciTech Connect (OSTI)

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

    2013-03-01

    Window air conditioners are the dominant cooling product for residences, in terms of annual unit sales. They are inexpensive, portable and can be installed by the owner. For this reason, they are an attractive solution for supplemental cooling, for retrofitting air conditioning into a home which lacks ductwork, and for renters. Window air conditioners for sale in the United States are required to meet very modest minimum efficiency standards. Four window air conditioners' performance were tested in the Advanced HVAC Systems Laboratory on NREL's campus in Golden, CO. In order to separate and study the refrigerant system's performance, the unit's internal leakage pathways, the unit's fanforced ventilation, and the leakage around the unit resulting from installation in a window, a series of tests were devised that focused on each aspect of the unit's performance. These tests were designed to develop a detailed performance map to determine whole-house performance in different climates. Even though the test regimen deviated thoroughly from the industry-standard ratings test, the results permit simple calculation of an estimated rating for both capacity and efficiency that would result from a standard ratings test. Using this calculation method, it was found that the three new air conditioners' measured performance was consistent with their ratings. This method also permits calculation of equivalent SEER for the test articles. Performance datasets were developed across a broad range of indoor and outdoor operating conditions, and used them to generate performance maps.

  13. Coordinated dynamic planning for air and space operations

    E-Print Network [OSTI]

    Wroten, Matthew Christian

    2005-01-01

    Planners of military air and space operations in a battlefield environment seek to allocate resources against targets in a way that best achieves the objectives of the commander. In future conflicts, the presence of new ...

  14. Industrial Scale Demonstration of Smart Manufacturing Achieving...

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

    OFFICE Industrial Scale Demonstration of Smart Manufacturing Achieving Transformational Energy Productivity Gains Development of an Open Architecture, Widely Applicable Smart...

  15. Air Pollution Spring 2010

    E-Print Network [OSTI]

    Pierce, Jeffrey

    ATS 555 Air Pollution Spring 2010 T Th 11:00 ­ 12:15, NESB 101 Instructor: Prof. Sonia Kreidenweis an understanding of types and sources of air pollution. 2. Examine concentrations of air pollutants and their effects on health and welfare. Review regulations governing air pollution. 3. Examine the meteorological

  16. Cromer Cycle Air Conditioner

    Office of Energy Efficiency and Renewable Energy (EERE)

    New Air Conditioning System Uses Desiccant to Transfer Moisture and Increase Efficiency and Capacity

  17. The Australian National University Library 2014 Achievements

    E-Print Network [OSTI]

    The Australian National University Library 2014 Achievements anulib.anu.edu.au #12;Supporting of CSIRO Publishing, Andrew Stammer. The Australian National University Library -- 2014 Achievements 1 814% increase in e-resource downloads #12;The Australian National University Library -- 2014 Achievements 2

  18. Design methods for displacement ventilation: Critical review.

    E-Print Network [OSTI]

    Schiavon, Stefano

    2006-01-01

    1988, Indoor Airflow, Air quality and Energy Consumption in1988, Indoor Airflow, Air quality and Energy Consumption inhigh indoor air quality in energy efficient way may be a

  19. ENERGY & ENVIRONMENT DIVISION ANNUAL REPORT, 1977

    E-Print Network [OSTI]

    Budnitz, R.J.

    2011-01-01

    of indoor combustion-generated air pollution in residentialG. W. Traynor, Combustion-Generated Indoor Air Pollution,at LBL concerning combustion generated indoor air pollution

  20. ENERGY EFFICIENT BUILDINGS PROGRAM. CHAPTER FROM ENERGY AND ENVIRONMENT DIVISION ANNUAL REPORT 1978

    E-Print Network [OSTI]

    Sonderegger, R. C.

    2011-01-01

    Traynor, Combustion- Generated Indoor Air Pollution; April,W. Traynor, "Combustion-Generated Indoor Air Pollution," inof combustion-generated indoor air pollution concluded that

  1. Air Pollution XVI 247 Emissions of Nitrogen Dioxide from Modern

    E-Print Network [OSTI]

    Denver, University of

    Air Pollution XVI 247 Emissions of Nitrogen Dioxide from Modern Diesel Vehicles G.A. Bishop and D in NO2 and ozone in a number of cities in Europe. For instance, he shows a very strong correlation;Air Pollution XVI 248 The DPF is an extremely effective means to achieve particle reduction goals

  2. Electrostatic Fluid Accelerator and Air Purifier The Second Wind

    E-Print Network [OSTI]

    Mamishev, Alexander

    as air propulsion [1-3], solid-fluid boundary layer modification [4,5], cooling [6-13], electro interface [18,19]. In addition, ionic propulsion is achieved without moving mechanical parts, thus enabling1 Electrostatic Fluid Accelerator and Air Purifier ­ The Second Wind I.A. Krichtafovitch1 , V

  3. Single-Duct Constant Air Volume System Supply Air Temperature Reset: Using Return Air Temperature or Outside Air Temperature? 

    E-Print Network [OSTI]

    Wei, G.; Turner, W. D.; Claridge, D.; Liu, M.

    2002-01-01

    The supply air temperature set point for a singleduct constant air volume air handling unit (AHU) system is often reset based on either return air temperature or outside air temperature in order to reduce simultaneous cooling and heating energy...

  4. Study of the relationship between indoor daylight environments and patient average length of stay (ALOS) in healthcare facilities 

    E-Print Network [OSTI]

    Choi, Joon Ho

    2007-04-25

    of indoor daylight variables in type A from 8:00 AM to 6:00 PM. ...........................................................97 xiii TABLE Page 36 Summary of the average values of indoor... daylight variables in type B from 8:00 AM to 6:00 PM.............................................................98 37 Significant ALOS comparisons and average illuminance between SE and NW...

  5. BID NO: SKA SSLE 009/2011 SUPPLY, DELIVERY AND INSTALLATION OF ROTARY UPS, MV INDOOR SWITCHGEAR AND

    E-Print Network [OSTI]

    Jarrett, Thomas H.

    SWITCHGEAR AND POWER TRANSFORMERS AT THE MeerKAT SITE NEAR CARNARVON, NORTHERN CAPE TENDER NOTICE and Installation of Rotary UPS, MV Indoor Switchgear and Power Transformers at the MeerKAT Site near Carnarvon, alternator and kinetic module on shared base frame) diesel rotary UPSs, 22 kV and 33 kV indoor switchgear

  6. Sensing by Proxy: Occupancy Detection Based on Indoor CO2 Concentration Ming Jin, Nikolaos Bekiaris-Liberis, Kevin Weekly, Costas Spanos, Alexandre Bayen

    E-Print Network [OSTI]

    Sensing by Proxy: Occupancy Detection Based on Indoor CO2 Concentration Ming Jin, Nikolaos Bekiaris on indoor CO2 concentration. We propose a link model that relates the proxy measurements with unknown human, small particulates (PM2.5), CO2, illumi- nation, temperature, and humidity [6], [8], [9]. Indoor CO2

  7. Performance of Multiple Pulse Multiple Delay Modulated UWB Signals in a Multiple Access Indoor Wireless Channel

    SciTech Connect (OSTI)

    Nekoogar, F

    2003-06-12

    In this paper, the performance of a two user UWB multiple access (UWB-MA) system based on multiple-pulse multiple-delay (MPMD) modulation scheme in an indoor wireless channel is evaluated by computer simulations. The indoor multipath propagation channel model used in this study is based on the modified statistical Saleh-Valenzuela model proposed by Foerester and Li from Intel. The simulation results indicate that the multipath performance of MPMD modulated signals in a multiple access system outperforms the nonmultipath case as the number of autocorrelation function (ACF) sampling points increases for each user. This is an unusual but important result, since MPMD receiver exploits multipath phenomenon in indoor wireless channels to increase the BER performance, hence the transmission rate in a UWB-MA system.

  8. Modeling, Real-Time Estimation, and Identification of UWB Indoor Wireless Channels

    SciTech Connect (OSTI)

    Olama, Mohammed M [ORNL] [ORNL; Djouadi, Seddik M [ORNL] [ORNL; Li, Yanyan [ORNL] [ORNL; Fathy, Aly [University of Tennessee (UT)] [University of Tennessee (UT)

    2013-01-01

    In this paper, stochastic differential equations (SDEs) are used to model ultrawideband (UWB) indoor wireless channels. We show that the impulse responses for time-varying indoor wireless channels can be approximated in a mean square sense as close as desired by impulse responses that can be realized by SDEs. The state variables represent the inphase and quadrature components of the UWB channel. The expected maximization and extended Kalman filter are employed to recursively identify and estimate the channel parameters and states, respectively, from online received signal strength measured data. Both resolvable and non-resolvable multipath received signals are considered and represented as small-scaled Nakagami fading. The proposed models together with the estimation algorithm are tested using UWB indoor measurement data demonstrating the method s viability and the results are presented.

  9. Mechanism of Thermal Comfort and Its Application in Indoor Environment 

    E-Print Network [OSTI]

    Lian, Z.; Liu, W.; Ye, X.; Ye, Y.

    2006-01-01

    -70% and air velocity was maintained at 0.2m/s during the experiment. The range of ambient temperature is from 16 to 34 . We measured the peak value of electric current of metabolite of dopamine (3,4-dihydroxyphenylacetic acid, DOPAC) in PO.... Differences were considered statistically significant as Pambient temperature resulted in the fluctuation of DOPAC. Since...

  10. Indoor bicycle storage and shower station Covered bicycle storage outside

    E-Print Network [OSTI]

    Almor, Amit

    materials in interior finishes Lots of natural day lighting Energy recovery units that reduce humidity, bring in outside air and reduce energy use Water conserving dual-flush toilets Low-flow faucets pavers in driveways to reduce storm-water runoff Digital television and website displays campus energy

  11. Who are Climbing the Walls? An Exploration of the Social World of Indoor Rock Climbing 

    E-Print Network [OSTI]

    Kurten, Jason Henry

    2011-02-22

    .B.A., Texas A&M University Co-Chairs of Advisory Committee: Dr. C. Scott Shafer Dr. David Scot This study is an exploratory look at the social world of indoor rock climbers, specifically, those at Texas A&M University. A... ARE CLIMBING THE WALLS? AN EXPLORATION OF THE SOCIAL WORLD OF INDOOR ROCK CLIMBING A Thesis by JASON HENRY KURTEN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree...

  12. Environmental continuous air monitor for ambient transuranic particulates

    SciTech Connect (OSTI)

    Rodgers, J.C.; Moore, M.E. [Los Alamos National Lab., NM (United States)

    1995-12-31

    We have constructed a working prototype of an environmental continuous air monitor (ECAM) for outdoor applications. The ECAM device is designed to continuously monitor the presence of transuranic contaminant aerosol below a size of 10 mm aerodynamic diameter. In remote operation, the ECAM can transmit radiological and meteorological data to a central processing location, where we have implemented geographical mapping and GPS capabilities into an integrated software package. The Canberra Alpha Sentry Monitor, a commercially available continuous air monitor (CAM) for indoor room applications, was used as the basic building block for the prototype. We increased the sample air flow to 4 cubic feet per minute (CFM) compared to the design air flow rate of 2 CFM. We also added a spread-spectrum radio data link between the CAM RS-232 serial port and a distant radio receiver that enables remote monitoring. In order to avoid collecting the large diameter particle fraction containing most of the inert mass that causes sample burial and alpha spectrum degradation, a Model 254 PM10 size-fractionating Wet from Graseby-Andersen was fitted to the Alpha Sentry Monitor. We removed the top cover of the CAM unit, and routed openings in the top surface of the CAM inlet. This allows air to flow into the inlet, down a collection tube, and then vertically into the CAM without the elbow and horizontal transition piece of the present in-line adapter. The air flows through a 47 mm filter, and the transuranic contamination is counted by a solid state alpha radiation detector, which is placed at a distance of 5 mm above the filter. The increased air flow significantly improves CAM alarm sensitivity and response time to an estimated level of 3.8x10-12 mCi/ml for an integration period 30 minutes. At the same time, the fractionating inlet removes a substantial amount of inert dust and thus enables extended monitoring without frequent maintenance.

  13. High Energy Efficiency Air Conditioning

    SciTech Connect (OSTI)

    Edward McCullough; Patrick Dhooge; Jonathan Nimitz

    2003-12-31

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

  14. Alternative Air Conditioning Technologies: Underfloor Air Distribution (UFAD)

    E-Print Network [OSTI]

    Webster, Tom

    2004-01-01

    Refrigerating, and Air-Conditioning Engineers, Inc, 1992.Refrigerating, and Air-Conditioning Engineers, Inc. , 1992.Refrigerating, and Air-Conditioning Engineers, Inc. , 1990.

  15. Roadmap to Achieve Energy Delivery Systems Cybersecurity

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

    to Achieve Energy Delivery Systems Cybersecurity ii Acknowledgements The Energy Sector Control Systems Working Group (ESCSWG) developed this roadmap in support of the Electricity...

  16. Achieving Water-Sustainable Bioenergy Production | Department...

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

    Production Breakout Session 3-A: Growing a Water-Smart Bioeconomy Achieving Water-Sustainable Bioenergy Production May Wu, Principal Environmental System Analyst in the...

  17. NERSC HPC Achievements Award Recipients for 2013

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

    Scientific Computing Center (NERSC) announced the winners of their inaugural High Performance Computing (HPC) Achievement Awards on Wednesday at the annual NERSC User Group meeting...

  18. ORISE: Beryllium laboratory achieves accreditation from College...

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

    Beryllium laboratory achieves accreditation from College of American Pathologists ORISE beryllium laboratory in Oak Ridge accredited for the third time since 2009 FOR IMMEDIATE...

  19. Analysis of a wet scrubber network in the air remediation of industrial workplaces: benefit for the city air quality

    E-Print Network [OSTI]

    Avveduto, Alessandro; Pace, Lorenzo; Curci, Gabriele; Monaco, Alessio; De Giovanni, Marina; Giammaria, Franco; Spanto, Giuseppe; Tripodi, Paolo

    2015-01-01

    Industrial activities carried out in confined spaces are characterized by a very specific type of air pollution. The extended exposure to this kind of pollution is often highly harmful, resulting in dramatic effects both on health and safety aspects. The indoor industrial abatement systems, adopted to purify the air, are typically applied to the emission points. The processed air is subsequently emitted outside. In this study we present the experimental results of three-stage wet scrubber systems installed in the industrial workplace of a (i) fiberglass processing plant, where the highest exposure levels to volatile compounds are nowadays today monitored,and of a (ii) waste-to-energy plant, characterized by a very high particulate matter level. The adopted technology, to be used as complementing strategy,does not require special disposal procedures and the processed air is re-emitted in the same work environment for the benefit of the work operators. The operation of the scrubbers network during the working a...

  20. General Air Permits (Louisiana)

    Broader source: Energy.gov [DOE]

    Any source, including a temporary source, which emits or has the potential to emit any air contaminant requires an air permit. Facilities with potential emissions less than 5 tons per year of any...

  1. Clean Air Bill 

    E-Print Network [OSTI]

    Her Majesty's Stationary Office

    1955-01-01

    The object of this Bill is to implement the principal recommendations in the Report of the Committee on Air Pollution

  2. on man, nature & air pollution

    E-Print Network [OSTI]

    Finlayson-Pitts, Barbara J

    2008-01-01

    on man, nature & air pollution About three decades ago, itand episodes of air pollution the following summer. Wetthe increase in air pollution. This hypothesis generated

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

    E-Print Network [OSTI]

    Brady, N.

    2013-01-01

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

  4. Air pollution sources apportionment in a French urban site Marie Chavent*

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Air pollution sources apportionment in a French urban site Marie Chavent* , Hervé Guégan preoccupation for human health. In order to achieve this purpose, air pollution sources have to be accurately sources of fine particulate emission. Key-words: air pollution data, Principal Component Analysis (PCA

  5. On Achieving Optimal Throughput with Network Coding

    E-Print Network [OSTI]

    Li, Baochun

    to the problem of optimizing end-to- end throughput in undirected data networks. We first illustrate the powerOn Achieving Optimal Throughput with Network Coding Zongpeng Li, Baochun Li, Dan Jiang, Lap Chi Lau Abstract-- With the constraints of network topologies and link capacities, achieving the optimal end

  6. NATIONAL PLAN TO ACHIEVE MARITIME DOMAIN AWARENESS

    E-Print Network [OSTI]

    Huang, Wei

    NATIONAL PLAN TO ACHIEVE MARITIME DOMAIN AWARENESS FOR THE NATIONAL STRATEGY FOR MARITIME SECURITY OCTOBER 2005 #12;National Strategy for Maritime Security: National Plan to Achieve Maritime Domain Awareness i FOREWORD By signing National Security Presidential Directive-41/Homeland Security Presidential

  7. A Measurement Study of Zigbee-based Indoor Localization Systems Under RF Interference

    E-Print Network [OSTI]

    Huang, Polly

    A Measurement Study of Zigbee-based Indoor Localization Systems Under RF Interference Seng 802.11) and Zigbee (IEEE 802.15.4) all operate in the 2.4x GHz fre- quency bands. The stability and availability of RSSI infor- mation for WiFi- or Zigbee-based localization systems may vary depending

  8. Gas Distribution in Unventilated Indoor Environments Inspected by a Mobile Robot

    E-Print Network [OSTI]

    Zell, Andreas

    Gas Distribution in Unventilated Indoor Environments Inspected by a Mobile Robot Michael Wandel1@tech.oru.se Abstract Gas source localisation with robots is usually per- formed in environments with a strong in different environments, and the similarities as well as differences in the analyte gas distributions

  9. Technical note Barriers and opportunities for passive removal of indoor ozone

    E-Print Network [OSTI]

    Siegel, Jeffrey

    Technical note Barriers and opportunities for passive removal of indoor ozone Elliott T. Gall presents a Monte Carlo simulation to assess passive removal materials (PRMs) that remove ozone of homes in Houston, Texas, were taken from the literature and combined with back- ground ozone removal

  10. LocSens -An Indoor Location Tracking System using Wireless Sensors

    E-Print Network [OSTI]

    Ungerer, Theo

    proved itself for outdoor usage. But it is not suitable for indoor applications due to poor coverage: fbagci@uci.edu F. Kluge is with the Department of Computer Science, University of Augsburg, Germany, University of Augsburg, Germany, email: Theo.Ungerer@informatik.uni-augsburg.de N. Bagherzadeh

  11. Estimation of Indoor Physical Activity Level Based on Footstep Vibration Signal Measured

    E-Print Network [OSTI]

    Helal, Abdelsalam

    . Dif- ferent from image sensor and sound sensor, MEMS accelerometer sensor can measure some biomedical, Localization of footstep source, MEMS accelerometer, Personal health care, Sensor net- work, Smart home. 1Estimation of Indoor Physical Activity Level Based on Footstep Vibration Signal Measured by MEMS

  12. Modeling HSGPS Doppler Errors in Indoor Environments for Pedestrian Dead-Reckoning

    E-Print Network [OSTI]

    Calgary, University of

    Modeling HSGPS Doppler Errors in Indoor Environments for Pedestrian Dead-Reckoning Zhe He, Mark The use of high sensitivity GPS (HSGPS) receivers integrated with dead-reckoning sensors for pedestrian navigation has been broadly investigated and applied in the past decade. Pedestrian dead-reckoning (PDR

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

    E-Print Network [OSTI]

    Wechsler, Risa H.

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

  14. Air to Air Communication Protocol Arjan Durresi1

    E-Print Network [OSTI]

    Jain, Raj

    1 Air to Air Communication Protocol Arjan Durresi1 , Vamsi Paruchuri1 , Leonard Barolli2 and Raj. Louis, MO 63130, USA 314-935-4963, jain@cse.wustl.edu Abstract--We present Air to Air Communication (AAC........................................................2 3. AIR TO AIR COMMUNICATION..............................3 4. SIMULATIONS

  15. Oil and Gas Air Heaters 

    E-Print Network [OSTI]

    Kou, G.; Wang, H.; Zhou, J.

    2006-01-01

    Most conventional air heaters adopt indirect heat transfer, which uses combustion gases to indirectly heat fresh air by heating surfaces to generate hot air used for material drying and dehumidification. We call them indirect air heaters. However...

  16. ORIGINAL ARTICLE Ambient Air Pollution

    E-Print Network [OSTI]

    Mulholland, James A.

    ORIGINAL ARTICLE Ambient Air Pollution and Cardiovascular Emergency Department Visits Kristi Busico ambient air pollutants and cardiovascular disease (CVD), the roles of the physicochemical components the relation between ambient air pollution and cardiovascular conditions using ambient air quality data

  17. Assessment of organic compound exposures, thermal comfort parameters, and HVAC system-driven air exchange rates in public school portable classrooms in California

    E-Print Network [OSTI]

    Shendell, Derek Garth

    2010-01-01

    portables, known to be from indoor, indoor and outdoor, or primarily outdoor sources because smoking is prohibited and space heaters

  18. Assessment of organic compound exposures, thermal comfort parameters, and HVAC system-driven air exchange rates in public school portable classrooms in California

    E-Print Network [OSTI]

    Shendell, Derek Garth

    2003-01-01

    portables, known to be from indoor, indoor and outdoor, or primarily outdoor sources because smoking is prohibited and space heaters

  19. Achieving Net Zero: Climate Change & Sustainability

    E-Print Network [OSTI]

    Rose, Michael R.

    Achieving Net Zero: Climate Change & Sustainability University of California, Irvine #12 & Energy Services Coordinator, Facilities Management Tanya Harris - A/P Administrative Specialist in environmental stewardship for decades. Operational staff began implementing progressive programs for energy

  20. Low Voltage White Phosphorescent OLED Achievements

    Broader source: Energy.gov [DOE]

    Universal Display Corporation (UDC) and its research partners at Princeton University and the University of Southern California have succeeded in developing a white phosphorescent OLED (PHOLED™) that achieved a record efficiency of 20 lumens per watt. This achievement is the result of the team's collaborative efforts to increase the efficiency of PHOLED lighting by focusing on two critical factors: lowering the drive voltages and increasing the amount of light extracted.

  1. Determining the Right Air Quality for Your Compressed Air System - Compressed Air Tip Sheet #5

    SciTech Connect (OSTI)

    2004-08-01

    BestPractices Program tip sheet discussing how to determine the right air quality for compressed air systems.

  2. United States Office of Radiation & EPA 402-R-99-002 Environmental Protection Indoor Air (6602J) October 1999

    E-Print Network [OSTI]

    or application. Rather, these terms reflect common industry usage. This report should be viewed only into the document. EPA would like to thank the following external reviewers: Dr. Erling Brostuer, Colorado School of Mines, Energy, Minerals, and Environment Program; Dr. Glen Miller, University of Nevada, Reno; and Diann

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

    E-Print Network [OSTI]

    Grimsrud, David T.

    2009-01-01

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

  4. A Survey and Critical Review of the Literature on Indoor Air Quality, Ventilation and Health Symptoms in Schools

    E-Print Network [OSTI]

    Daisey, Joan M.

    2010-01-01

    Carbon monoxide originates from incomplete combustion ofcarbon monoxide poisoning caused by faulty combustion

  5. A Survey and Critical Review of the Literature on Indoor Air Quality, Ventilation and Health Symptoms in Schools

    E-Print Network [OSTI]

    Daisey, Joan M.

    2010-01-01

    Range: NR* Average: Range: Week 1. No HRV operating Week 2.With HRV operating in Test Room Black and Worthan, 1995.classroom in School A before the HRV was operated. The C 0

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

    E-Print Network [OSTI]

    Grimsrud, David T.

    2009-01-01

    sponsored by Bonneville Power Administration under ContractReport prepared for Bonneville Power Administration, #85544.Report to Bonneville Power Administration D.T. Grimsrud,

  7. A Survey and Critical Review of the Literature on Indoor Air Quality, Ventilation and Health Symptoms in Schools

    E-Print Network [OSTI]

    Daisey, Joan M.

    2010-01-01

    in Maine. C 0 levels measured using passive dosimeter tubes.1250 dosimeters mailed;473 dosimeters returned. 2300 ppm Percentage greater than:

  8. United States Office of Radiation and EPA 402-R-00-007 Environmental Protection Indoor Air August 2000

    E-Print Network [OSTI]

    -level radioactive waste (LLW). Since the mainframe versions of the PRESTO-EPA-CPG and PRESTO-EPA-POP models were to radioactivity through atmospheric, groundwater, and surface water transport pathways; through drinking water

  9. A Survey and Critical Review of the Literature on Indoor Air Quality, Ventilation and Health Symptoms in Schools

    E-Print Network [OSTI]

    Daisey, Joan M.

    2010-01-01

    ALA believes that asthma causes children to experience 16potential causes of SBS symptoms as well as asthma. Amongthe causes of SBS and other health effects, such as asthma,

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

    E-Print Network [OSTI]

    Grimsrud, David T.

    2009-01-01

    by Bonneville Power Administration under Contract No. DE-for Bonneville Power Administration, #85544. Jardinier, P. (to Bonneville Power Administration D.T. Grimsrud, September

  11. Department of Energy EPA\\OAR\\Office of Radiation and Indoor Air U. S. Environmental Protection Agency

    E-Print Network [OSTI]

    Environmental Protection Agency (EPA) staff asked some additional questions concerning the Hanford Tank and K Cotsworth -2- 2) Does the K-Basin sludge contain chunks of spent nuclear fuel, or has all of the residue TRU waste inventory contains no "chunks" of spent nuclear fuel. Wastes generated from spent fuel

  12. Measured Cooling Season Results Relating the Impact of Mechanical Ventilation on Energy, Comfort, and Indoor Air Quality in Humid Climates

    SciTech Connect (OSTI)

    Martin, Eric; Amos, Bryan; McIlvaine, Janet; Chasar, David; Widder, Sarah H.; Fonorow, Ken

    2014-08-22

    Conference Paper for ACEEE Summer Study in Buildings discussing results to date of a project evaluating the impact of ventialtion on energy use, comfort, durability, and cost in the hot humid climate.

  13. United States Office of Radiation and EPA 402-B-00-001 Environmental Protection Indoor Air August 2000

    E-Print Network [OSTI]

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Underground Mining of Uranium Ore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 The Uranium Fuel Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Uranium and Thorium Mill Tailings

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

    E-Print Network [OSTI]

    Grimsrud, David T.

    2009-01-01

    Version of Infiltration Calculation Training Course Study A-Quality Study, the effects of house tightening infiltrationfield studies begin to demonstrate the low infiltration

  15. The Impact of Refrigerant Charge, Air Flow and Expansion Devices on the Measured Performance of an Air-Source Heat Pump Part I

    SciTech Connect (OSTI)

    Shen, Bo [ORNL

    2011-01-01

    This paper describes extensive tests performed on a 3-ton R-22 split heat pump in heating mode. The tests contain 150 steady-state performance tests, 18 cyclic tests and 18 defrost tests. During the testing work, the refrigerant charge level was varied from 70 % to 130% relative to the nominal value; the outdoor temperature was altered by three levels at 17 F (-8.3 C), 35 F (1.7 C) and 47 F (8.3 C); indoor air flow rates ranged from 60% to 150% of the rated air flow rate; and the expansion device was switched from a fixed-orifice to a thermal expansion value. Detailed performance data from the extensive steady state cyclic and defrost testing performed were presented and compared.

  16. National Weatherization Assistance Program Impact Evaluation: Impact of Exhaust-Only Ventilation on Radon and Indoor Humidity - A Field Investigation

    SciTech Connect (OSTI)

    Pigg, Scott

    2014-09-01

    The study described here sought to assess the impact of exhaust-only ventilation on indoor radon and humidity in single-family homes that had been treated by the Weatherization Assistance Program (WAP).

  17. Indoor climate control accounts for over 40% of the energy used in US residential buildings1, much of which

    E-Print Network [OSTI]

    Kamat, Vineet R.

    ) Annual Energy Outlook 2011. 2. Li, V.C. "ECC­ Material, Structural, and Durability Performance," ConcreteIndoor climate control accounts for over 40% of the energy used in US residential buildings1, much

  18. Personal continuous air monitor

    DOE Patents [OSTI]

    Morgan, Ronald G. (Los Alamos, NM); Salazar, Samuel A. (Albuquerque, NM)

    2000-01-01

    A personal continuous air monitor capable of giving immediate warning of the presence of radioactivity has a filter/detector head to be worn in the breathing zone of a user, containing a filter mounted adjacent to radiation detectors, and a preamplifier. The filter/detector head is connected to a belt pack to be worn at the waist or on the back of a user. The belt pack contains a signal processor, batteries, a multichannel analyzer, a logic circuit, and an alarm. An air pump also is provided in the belt pack for pulling air through the filter/detector head by way of an air tube.

  19. FUJIFILM Hunt Chemicals U.S.A. Achieves Compressed Air System...

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

    in-house maintenance team worked with a team of faculty and students from the Tennessee Technology University Industrial Assessment Center (IAC) to conduct an assessment at its...

  20. Air Force Achieves Fuel Efficiency through Industry Best Practices (Brochure), Federal Energy Management Program (FEMP)

    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:FinancingPetroleum Based Fuels Research at NRELDepartment ofEnergy 1 DOE Hydrogen andhighest

  1. FUJIFILM Hunt Chemicals U.S.A. Achieves Compressed Air System

    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:FinancingPetroleum12, 2015Executive Order14, 20111, 2015EnergyEnergy 3,

  2. ENERGY EFFICIENT BUILDINGS PROGRAM. CHAPTER FROM ENERGY & ENVIRONMENT ANNUAL REPORT 1977

    E-Print Network [OSTI]

    Authors, Various

    2010-01-01

    NOVAKOV INDOOR AIR POLLUTION STUDIES U COMBUSTION RESEARCHat LBL concerning combustion generated indoor air pollutionG. W. Traynor, Combustion-Generated Indoor Ajr Pollution,

  3. Impacts of Static Pressure Set Level on the HVAC Energy Consumption and Indoor Conditions 

    E-Print Network [OSTI]

    Liu, M.; Zhu, Y.; Claridge, D. E.; White, E.

    1996-01-01

    Operation UTMB 6p static pressure drop (inH20Ift) Subscripts a ambient c cold deck, cold air f fan h hot deck, hot air m mixed air o designed, exit of fan INTRODUCTION The air static pressure will be defined here as the air static pressure at 213... OF to 100 OF as the ambient temperature changed from 70 OF to 30 OF. When the ambient temperature was higher than 70 OF, the design discharge air temperature was the same as the mixed air temperature. The hot air temperature could be reduced without...

  4. Leads Tactical Air Control Party (TACP) and Air Support

    E-Print Network [OSTI]

    Stuart, Steven J.

    Air LiAison officer Leads Tactical Air Control Party (TACP) and Air Support Operations Center (ASOC) operations. Provides Command and Control, and Execution of Air, Space, and Cyber power. Primary advisor and advocate to the Ground Force Commander ensuring effective Air, Space, and Cyber power integration with US

  5. Appendix F. Air Permits Appendix F. Air Permits F-3

    E-Print Network [OSTI]

    Pennycook, Steve

    Appendix F. Air Permits #12;#12;Appendix F. Air Permits F-3 Table F.1. Air Permits at the Y-12 Chemical Process Operation 01-0020-21 554701 Air Bearing Operation 01-0020-05 554701 Special Processing Purification Facility #12;Oak Ridge Reservation F-4 Appendix F. Air Permits Table F.2. Oak Ridge National

  6. Appendix E. Air Permits Appendix E. Air Permits E-3

    E-Print Network [OSTI]

    Pennycook, Steve

    Appendix E. Air Permits #12;#12;Appendix E. Air Permits E-3 Table E.1. Air permits at the Y-12 Chemical Process Operation 01-0020-21 554701 Air Bearing Operation 01-0020-05 554701 Special Processing Operation 01-0020-68 554701 Disassembly and Storage Operation #12;Oak Ridge Reservation E-4 Appendix E. Air

  7. Acute changes in pulse pressure in relation to constituents of particulate air pollution in elderly persons

    SciTech Connect (OSTI)

    Jacobs, Lotte; Buczynska, Anna; Walgraeve, Christophe; Delcloo, Andy; Potgieter-Vermaak, Sanja; Molecular Science Institute, School of Chemistry, University of Witwatersrand, Johannesburg; Division of Chemistry and Environmental Science, Manchester Metropolitan University, Manchester ; Van Grieken, Rene; Demeestere, Kristof; Dewulf, Jo; Van Langenhove, Herman; De Backer, Hugo; Nemery, Benoit; Nawrot, Tim S.; Centre for Environmental Sciences, Hasselt University, Diepenbeek

    2012-08-15

    An increased pulse pressure (difference between systolic and diastolic blood pressure) suggests aortic stiffening. The objective of this study was to examine the acute effects of both particulate matter (PM) mass and composition on blood pressure, among elderly persons. We carried out a panel study in persons living in elderly homes in Antwerp, Belgium. We recruited 88 non-smoking persons, 70% women with a mean age of 83 years (standard deviation: 5.2). Blood pressure was measured and a blood sample was collected on two time points, which were chosen so that there was an exposure contrast in ambient PM exposure. The elemental content of the collected indoor and outdoor PM{sub 2.5} (particulate matter with an aerodynamic diameter <2.5 {mu}m) mass concentration was measured. Oxygenated polycyclic aromatic hydrocarbons (oxy-PAHs) on outdoor PM{sub 10} (particulate matter with an aerodynamic diameter <10 {mu}m) were measured. Each interquartile range increase of 20.8 {mu}g/m Superscript-Three in 24-h mean outdoor PM{sub 2.5} was associated with an increase in pulse pressure of 4.0 mmHg (95% confidence interval: 1.8-6.2), in persons taking antihypertensive medication (n=57), but not in persons not using antihypertensive medication (n=31) (p for interaction: 0.02). Vanadium, iron and nickel contents of PM{sub 2.5} were significantly associated with systolic blood pressure and pulse pressure, among persons on antihypertensive medication. Similar results were found for indoor concentrations. Of the oxy-PAHs, chrysene-5,6-dione and benzo[a]pyrene-3,6-dione were significantly associated with increases in systolic blood pressure and pulse pressure. In elderly, pulse pressure was positively associated with acute increases in outdoor and indoor air pollution, among persons taking antihypertensive medication. These results might form a mechanistic pathway linking air pollution as a trigger of cardiovascular events.

  8. Design to Achieve Fault Tolerance and Resilience

    SciTech Connect (OSTI)

    Ted Quinn; Richard Bockhorst; Craig Peterson; Gregg Swindlehurst

    2012-09-01

    The purpose of this report is to provide initial scoping for follow on work designed to improve nuclear plant operation. The focus of this report is twofold. Selected trips over the last five years are examined to determine if there are potential opportunities to automate tasks that are currently performed manually. The second area is to evaluate the potential for avoiding reactor trips by reducing power in a controlled manner upon the loss of turbine generator load. Some candidate opportunities to reduce the frequency on reactor trips identified in this report are redundant feedwater controls, automated response to a feedwater or condensate pump trip reducing power vice a reactor trip, and elimination of air operators for the feedwater control valves or providing redundant air supplies.

  9. History of Air Conditioning

    Office of Energy Efficiency and Renewable Energy (EERE)

    We take it for granted but what would life be like without the air conditioner? Once considered a luxury, this invention is now an essential, allowing us to cool everything from homes, businesses, businesses, data centers, laboratories and other buildings vital to our daily lives. Explore this timeline to learn some of the key dates in the history of air conditioning.

  10. Recirculating electric air filter

    DOE Patents [OSTI]

    Bergman, W.

    1985-01-09

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

  11. Compressed Air System Optimization 

    E-Print Network [OSTI]

    Aegerter, R.

    1999-01-01

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

  12. Recirculating electric air filter

    DOE Patents [OSTI]

    Bergman, Werner (Pleasanton, CA)

    1986-01-01

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

  13. PipeProbe: Mapping Spatial Layout of Indoor Water Yu-Chen Chang1

    E-Print Network [OSTI]

    Huang, Polly

    PipeProbe: Mapping Spatial Layout of Indoor Water Pipelines Yu-Chen Chang1 , Tsung-Te Lai1 , Hao}@csie.ntu.edu.tw, phuang@cc.ee.ntu.edu.tw Abstract--We propose PipeProbe, a mobile sensor system for mapping water- sule into the source of the water pipelines. As the PipeProbe cap- sule traverses the pipelines

  14. AC System Equipment Specification, Installation and Operational Options for Improved Indoor Humidity Control 

    E-Print Network [OSTI]

    Shirey, D. B.

    2008-01-01

    Specification, Installation and Operational Options for Improved Indoor Humidity Control Don B. Shirey, III Program Manager Florida Solar Energy Center Cocoa, Florida ABSTRACT High-efficiency home designs have significantly reduced sensible...: Florida Solar Energy Center. James, P., J.E. Cummings, J. Sonne, R. Vieira, J. Klongerbo. 1997. The Effect of Residential Equipment Capacity on Energy Use, Demand, and Run-Time, FSEC-PF-328-97. Cocoa, FL: Florida Solar Energy Center. Lennox...

  15. The Effects of Air Permeability, Background Ventilation and Lifestyle on Energy Performance, Indoor Air Quality and Risk of Condensation in Domestic Buildings

    E-Print Network [OSTI]

    Hashemi, Arman; Khatami, Narguess

    2015-04-08

    on the energy performance as well as the risk of condensation and CO2 concentration in domestic buildings. Dynamic computer simulations were conducted in EnergyPlus. Results indicated direct relations between the ventilation rates, energy performance and IAQ...

  16. Association of indoor nitrogen dioxide with respiratory symptoms and pulmonary function in children

    SciTech Connect (OSTI)

    Neas, L.M.; Dockery, D.W.; Ware, J.H.; Spengler, J.D.; Speizer, F.E.; Ferris, B.G. Jr. )

    1991-07-15

    The effect of indoor nitrogen dioxide on the cumulative incidence of respiratory symptoms and pulmonary function level was studied in a cohort of 1,567 white children aged 7-11 years examined in six US cities from 1983 through 1988. Week-long measurements of nitrogen dioxide were obtained at three indoor locations over 2 consecutive weeks in both the winter and the summer months. The household annual average nitrogen dioxide concentration was modeled as a continuous variable and as four ordered categories. Multiple logistic regression analysis of symptom reports from a questionnaire administered after indoor monitoring showed that a 15-ppb increase in the household annual nitrogen dioxide mean was associated with an increased cumulative incidence of lower respiratory symptoms (odds ratio (OR) = 1.4, 95% confidence interval (95% Cl) 1.1-1.7). The response variable indicated the report of one or more of the following symptoms: attacks of shortness of breath with wheeze, chronic wheeze, chronic cough, chronic phlegm, or bronchitis. Girls showed a stronger association (OR = 1.7, 95% Cl 1.3-2.2) than did boys (OR = 1.2, 95% Cl 0.9-1.5). An analysis of pulmonary function measurements showed no consistent effect of nitrogen dioxide. These results are consistent with earlier reports based on categorical indicators of household nitrogen dioxide sources and provide a more specific association with nitrogen dioxide as measured in children's homes.

  17. Respiratory health effects of the indoor environment in a population of Dutch children

    SciTech Connect (OSTI)

    Dijkstra, L.; Houthuijs, D.; Brunekreef, B.; Akkerman, I.; Boleij, J.S. )

    1990-11-01

    The effect of indoor exposure to nitrogen dioxide on respiratory health was studied over a period of 2 yr in a population of nonsmoking Dutch children 6 to 12 yr of age. Lung function was measured at the schools, and information on respiratory symptoms was collected from a self-administered questionnaire completed by the parents of the children. Nitrogen dioxide was measured in the homes of all children with Palmes' diffusion tubes. In addition, information on smoking and dampness in the home was collected by questionnaire. There was no relationship between exposure to nitrogen dioxide in the home and respiratory symptoms. Respiratory symptoms were found to be associated with exposure to tobacco smoke and home dampness. There was a weak, negative association between maximal midexpiratory flow (MMEF) and exposure to nitrogen dioxide. FEV1, peak expiratory flow, and MMEF were all negatively associated with exposure to tobacco smoke. Home dampness was not associated with pulmonary function. Lung function growth, measured over a period of 2 yr, was not consistently associated with any of the indoor exposure variables. The development of respiratory symptoms over time was not associated with indoor exposure to nitrogen dioxide. There was a significant association between exposure to environmental tobacco smoke in the home and the development of wheeze. There was also a significant association between home dampness and the development of cough.

  18. Indoor risk factors for cough and their relation to wheeze and sensitization in Chilean young adults

    SciTech Connect (OSTI)

    Potts, J.F.; Rona, R.J.; Oyarzun, M.J.; Amigo, H.; Bustos, P.

    2008-04-15

    We assessed the effects of indoor risk factors, including smoking, on different types of cough and on cough and wheeze in combination. Our sample was composed of 1232 men and women residing in a semi-rural area of Chile. We used a standardized questionnaire, sensitization to 8 allergens, and bronchial hyperresponsiveness to methacholine to assess cough and wheeze characteristics. Information was gathered on dampness, mold, ventilation, heating, housing quality, smoking, and environmental tobacco smoke exposure. Most exposures were associated with cough alone or cough in combination with wheeze. Smoking, past smoking, and environmental tobacco smoke exposure were strongly associated with dry cough and wheeze. The use of coal for heating was associated with dry cough. Leaks, mold, and lack of kitchen ventilation were associated with cough and wheeze. Nocturnal cough and productive cough were associated with specific types of sensitization, but dry cough was not. Productive cough was associated with hyperresponsiveness to methacholine. Several different types of indoor exposures, including environmental tobacco smoke exposure, are important contributors to morbidity associated with cough and wheeze. A vigorous preventive strategy designed to lower exposures to indoor risk factors would lower rates of respiratory morbidity.

  19. EMISSIONS TO AIR OPERATIONAL PROCEDURE

    E-Print Network [OSTI]

    Harman, Neal.A.

    PURPOSE: To minimise emissions and discharges to air from boilers, fume cupboards, air conditioning Act 1993. SCOPE: All air-conditioning and refrigeration equipment METHOD: Air-conditioning or fluorinated greenhouse gases (air conditioning units, refrigeration units etc.) 2. Several approved

  20. Idaho Site Contractor Achieves Treatment Project Milestone

    Broader source: Energy.gov [DOE]

    IDAHO FALLS, Idaho – The Idaho site’s main cleanup contractor recently achieved a major performance milestone by successfully passing an operational readiness review for a first-of-a-kind facility that will treat the remaining 900,000 gallons of liquid radioactive waste generated by the site’s legacy cleanup mission.