National Library of Energy BETA

Sample records for homes indoor air

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

    SciTech Connect

    Sherman, Max H.; Walker, Iain I.

    2010-01-01

    Ventilation reduces occupant exposure to indoor contaminants by diluting or removing them. In a multi-zone environment such as a house, every zone will have different dilution rates and contaminant source strengths. The total ventilation rate is the most important factor in determining occupant exposure to given contaminant sources, but the zone-specific distribution of exhaust and supply air and the mixing of ventilation air can play significant roles. Different types of ventilation systems will provide different amounts of mixing depending on several factors such as air leakage, air distribution system, and contaminant source and occupant locations. Most U.S. and Canadian homes have central heating, ventilation, and air conditioning systems, which tend to mix the air; thus, the indoor air in different zones tends to be well mixed for significant fractions of the year. This article reports recent results of investigations to determine the impact of air mixing on exposures of residential occupants to prototypical contaminants of concern. We summarize existing literature and extend past analyses to determine the parameters than affect air mixing as well as the impacts of mixing on occupant exposure, and to draw conclusions that are relevant for standards development and for practitioners designing and installing home ventilation systems. The primary conclusion is that mixing will not substantially affect the mean indoor air quality across a broad population of occupants, homes, and ventilation systems, but it can reduce the number of occupants who are exposed to extreme pollutant levels. If the policy objective is to minimize the number of people exposed above a given pollutant threshold, some amount of mixing will be of net benefit even though it does not benefit average exposure. If the policy is to minimize exposure on average, then mixing air in homes is detrimental and should not be encouraged. We also conclude that most homes in the US have adequate mixing

  2. Indoor air quality study of forty east Tennessee homes

    SciTech Connect

    Hawthorne, A.R.; Gammage, R.B.; Dudney, C.S.; Hingerty, B.E.; Schuresko, D.D.; Parzyck, D.C.; Womack, D.R.; Morris, S.A.; Westley, R.R.; White, D.A.

    1984-12-01

    Over a one-year period, measurements of indoor air pollutants (CO/sub x/, NO/sub x/, formaldehyde, volatile organics, particulates, and radon) were made in 40 homes in East Tennessee. The houses were of various ages with different types of insulation and heating. Over one-half of the houses exceeded the ASHRAE indoor ceiling guideline of 0.1 ppM for formaldehyde on at least one occasion. Over the duration of the study, older houses averaged 0.04 ppM of formaldehyde while houses less than 5 years old averaged 0.08 ppM (P < 0.01). The highest concentration of formaldehyde measured was 0.4 ppM in a new home. Diurnal and seasonal fluctuations in levels of formaldehyde in some homes were as much as twofold and tenfold, respectively. The highest levels of formaldehyde were usually recorded during summer months. The concentration in indoor air of various organics was at least tenfold higher than in outdoor air. Carbon monoxide and nitrgen oxides were usually <2 and <0.02 ppM, respectively, except when gas stoves or kerosene space heaters were operating, or when a car was running in the garage. In 30% of the houses, the annual indoor guideline for radon, 4 pCi/L, was exceeded. The mean radon level in houses built on the ridgelines was 4.4 pCi/L, while houses located in the valleys had a mean level of 1.7 pCi/L (P < 0.01). The factor having the most impact on infiltration was operation of the central duct fan of the heating, ventilation, and air conditioning system. The mean rate of air exchange increased from 0.39 to 0.74 h/sup -1/ when the duct fan was operated (measurements prior to December 1982). This report presents the study design and implementation, describes the monitoring protocols, and provides a complete set of the data collected during the project. 25 references, 29 figures, 42 tables.

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

    SciTech Connect

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

    SciTech Connect

    Less, Brennan; Mullen, Nasim; Singer, Brett; Walker, Iain

    2015-07-01

    Today’s high performance green homes are reaching previously unheard of levels of airtightness and are using new materials, technologies and strategies, whose impacts on Indoor Air Quality (IAQ) cannot be fully anticipated from prior studies. This research study used pollutant measurements, home inspections, diagnostic testing and occupant surveys to assess IAQ in 24 new or deeply retrofitted homes designed to be high performance green buildings in California.

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

    SciTech Connect

    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).

  6. Results of a forty-home indoor-air-pollutant monitoring study

    SciTech Connect

    Hawthorne, A.R.; Gammage, R.B.; Dudney, C.S.; Womack, D.R.; Morris, S.A.; Westley, R.R.; White, D.A.; Gupta, K.C.

    1983-01-01

    A study was conducted in 40 homes in the areas of Oak Ridge and west Knoxville, Tennessee. Concentrations of CO/sub x/, NO/sub x/, particulates, formaldehyde, and radon, as well as selected volatile organic compounds, were quantified. In addition, information was collected on air exchange rates, meteorological conditions, and structural and consumer products. This paper summarizes some of the results and provides specific examples of increased indoor concentrations of pollutants due to the operation of a kerosene space heater, a gas range, and a wood/coal stove. Results showed formaldehyde levels frequently exceeded 0.1 ppM; were highest in newer homes; and fluctuate diurnally and seasonally. Radon levels frequently exceeded 3 pCi/L and correlated strongly with house location. Organic pollutant levels were at least an order of magnitude higher indoors than outdoors. Combustion sources (especially unvented) significantly increased levels of CO/sub x/, NO/sub x/, and particulates. Air exchange rates were increased nearly two-fold by operation of the HVAC central air circulation fan.

  7. Indoor air quality in 24 California residences designed as high-performance homes

    SciTech Connect

    Less, Brennan; Mullen, Nasim; Singer, Brett; Walker, Iain

    2015-01-01

    Today’s high performance green homes are reaching previously unheard of levels of airtightness and are using new materials, technologies and strategies, whose impacts on Indoor Air Quality (IAQ) cannot be fully anticipated from prior studies. This research study used pollutant measurements, home inspections, diagnostic testing and occupant surveys to assess IAQ in 24 new or deeply retrofitted homes designed to be high performance green buildings in California. Although the mechanically vented homes were six times as airtight as non-mechanically ventilated homes (medians of 1.1 and 6.1 ACH50, n=11 and n=8, respectively), their use of mechanical ventilation systems and possibly window operation meant their median air exchange rates were almost the same (0.30 versus 0.32 hr-1, n=8 and n=8, respectively). Pollutant levels were also similar in vented and unvented homes. In addition, these similarities were achieved despite numerous observed faults in complex mechanical ventilation systems. More rigorous commissioning is still recommended. Cooking exhaust systems were used inconsistently and several suffered from design flaws. Failure to follow best practices led to IAQ problems in some cases. Ambient nitrogen dioxide standards were exceeded or nearly so in four homes that either used gas ranges with standing pilots, or in Passive House-style homes that used gas cooking burners without venting range hoods. Homes without active particle filtration had particle count concentrations approximately double those in homes with enhanced filtration. The majority of homes reported using low-emitting materials; consistent with this, formaldehyde levels were approximately half those in conventional, new CA homes built before 2008. Emissions of ultrafine particles (with diameters <100 nm) were dramatically lower on induction electric cooktops, compared with either gas or resistance electric models. These results indicate that high performance homes can achieve

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

    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.

  9. Fresh air indoors

    SciTech Connect

    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.

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

    SciTech Connect

    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.

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

    SciTech Connect

    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.

  12. Results of the California Healthy Homes Indoor Air Quality Study of 2011-2013: Impact of natural gas appliances on air pollutant concentrations

    DOE PAGES [OSTI]

    Mullen, Nasim A.; Li, Jina; Russell, Marion L.; Spears, Michael; Less, Brennan D.; Singer, Brett C.

    2015-03-17

    This study was conducted to assess the current impact of natural gas appliances on air quality in California homes. Data were collected via telephone interviews and measurements inside and outside of 352 homes. Passive samplers measured time-resolved CO and time-integrated NOX, NO2, formaldehyde, and acetaldehyde over ~6d periods in November 2011 - April 2012 and October 2012 - March 2013. The fraction of indoor NOX and NO2 attributable to indoor sources was estimated. NOX, NO2 and highest 1-h CO were higher in homes that cooked with gas and increased with amount of gas cooking. NOX and NO2 were higher inmore » homes with cooktop pilot burners, relative to gas cooking without pilots. Homes with a pilot burner on a floor or wall furnace had higher kitchen and bedroom NOX and NO2 compared to homes without a furnace pilot. When scaled to account for varying home size and mixing volume, indoor-attributed bedroom and kitchen NOX and kitchen NO2 were not higher in homes with wall or floor furnace pilot burners, though bedroom NO2 was higher. In homes that cooked 4 h or more with gas, self-reported use of kitchen exhaust was associated with lower NOX, NO2 and highest 1-h CO. Gas appliances were not associated with higher concentrations of formaldehyde or acetaldehyde.« less

  13. Manual on indoor air quality

    SciTech Connect

    Diamond, R.C.; Grimsrud, D.T.

    1983-12-01

    This reference manual was prepared to assist electric utilities in helping homeowners, builders, and new home buyers to understand a broad range of issues related to indoor air quality. The manual is directed to technically knowledgeable persons employed by utility companies - the customer service or marketing representative, applications engineer, or technician - who may not have specific expertise in indoor air quality issues. In addition to providing monitoring and control techniques, the manual summarizes the link between pollutant concentrations, air exchange, and energy conservation and describes the characteristics and health effects of selected pollutants. Where technical information is too lengthy or complex for inclusion in this volume, reference sources are given. Information for this manual was gathered from technical studies, manufacturers' information, and other materials from professional societies, institutes, and associations. The aim has been to provide objective technical and descriptive information that can be used by utility personnel to make informed decisions about indoor air quality issues.

  14. Results of the California Healthy Homes Indoor Air Quality Study of 2011-2013: Impact of natural gas appliances on air pollutant concentrations

    SciTech Connect

    Mullen, Nasim A.; Li, Jina; Russell, Marion L.; Spears, Michael; Less, Brennan D.; Singer, Brett C.

    2015-03-17

    This study was conducted to assess the current impact of natural gas appliances on air quality in California homes. Data were collected via telephone interviews and measurements inside and outside of 352 homes. Passive samplers measured time-resolved CO and time-integrated NOX, NO2, formaldehyde, and acetaldehyde over ~6d periods in November 2011 - April 2012 and October 2012 - March 2013. The fraction of indoor NOX and NO2 attributable to indoor sources was estimated. NOX, NO2 and highest 1-h CO were higher in homes that cooked with gas and increased with amount of gas cooking. NOX and NO2 were higher in homes with cooktop pilot burners, relative to gas cooking without pilots. Homes with a pilot burner on a floor or wall furnace had higher kitchen and bedroom NOX and NO2 compared to homes without a furnace pilot. When scaled to account for varying home size and mixing volume, indoor-attributed bedroom and kitchen NOX and kitchen NO2 were not higher in homes with wall or floor furnace pilot burners, though bedroom NO2 was higher. In homes that cooked 4 h or more with gas, self-reported use of kitchen exhaust was associated with lower NOX, NO2 and highest 1-h CO. Gas appliances were not associated with higher concentrations of formaldehyde or acetaldehyde.

  15. Preliminary results of a forty-home indoor air pollutant monitoring study

    SciTech Connect

    Hawthorne, A.R.; Gammage, R.B.; Dudney, C.S.; Womack, D.R.; Morris, S.A.; Westley, R.R.; Gupta, K.C.

    1983-01-01

    A detailed study of the pollutants found in forty homes in the Oak Ridge/Knoxville, Tennessee, area is being conducted. Formaldehyde measurements were made on a twice-per-month schedule using passive permeation monitors with a sampling period of 24 hours. In addition to the formaldehyde measurements, other pollutants, including volatile organics, particulates, nitrogen oxides, and carbon monoxide, were measured during a one-day visit to each house. Radon levels were measured during a one-day visit to each house. Randon levels were measured by an active monitor located in the house for a period of one week. Air infiltration rates and meteorological data were also recorded. Pollutant levels were generally below any applicable guidelines with the exception of radon and formaldehyde which were elevated in some of the houses. Results of the first phase of the monitoring study are presented.

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

    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,...

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

    Energy.gov [DOE]

    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...

  18. 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

    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

  19. Workshop on indoor air quality research needs

    SciTech Connect

    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)

  20. Air Sealing Your Home | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Your Home Air Sealing Your Home Save on heating and cooling costs by checking for air leaks in common trouble spots in your home. Save on heating and cooling costs by checking for air leaks in common trouble spots in your home. Reducing the amount of air that leaks in and out of your home is a cost-effective way to cut heating and cooling costs, improve durability, increase comfort, and create a healthier indoor environment. Caulking and weatherstripping are two simple and effective air-sealing

  1. Combustion Safety for Appliances Using Indoor Air (Fact Sheet), Building America Case Study: Technology Solutions for New and Existing Homes, Building Technologies Office (BTO)

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Combustion Safety for Appliances Using Indoor Air PROJECT INFORMATION Project Name: Combustion Safety for Appliances Using Indoor Air Partners: American Gas Association www.aga.org Center of Energy and Environment www.mncee.org Building Performance Institute www.bpi.org NorthernSTAR Building America Partnership Partnership for Advanced Residential Retrofit www.gastechnology.org/PARR Building Components: Gas Appliances Application: Retrofit Single Family Year Tested: 2013 Applicable Climate

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

    SciTech Connect

    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.

  3. Energy Savings with Acceptable Indoor Air Quality Through Improved...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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

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

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Impacts of contaminant storage on indoor air quality: Model development Citation Details In-Document Search Title: Impacts of contaminant storage on indoor air...

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    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...

  7. Indoor air pollution and pulmonary function in children

    SciTech Connect

    Shen, S.; Qin, Y.; Cao, Z.; Shang, J.; Liu, Y.; Yang, X.; Deng, Y.; Huang, J.; Fu, Z.; Song, X. )

    1992-06-01

    Pulmonary function in winter time in 1,343 school children aged 10-13 years was measured in four cities located in northern and southern part of China. The results showed that FVC, FEV1, PEF, V75, V50 and V25 in children living in homes with coal stoves were decreased by 1.5-10.7% compared with children living in homes with gas or LPG stoves in Chengde and Shanghai. In contrast to this, no significant difference in pulmonary function was found in Shenyang and Wuhan. It suggested that this phenomenon was related to indoor air pollution, and partly related to passive smoking or outdoor air pollution.

  8. DOE ZERH Webinar: Ventilation and Filtration Strategies with Indoor airPLUS (Text Version)

    Office of Energy Efficiency and Renewable Energy (EERE)

    Below is the text version of the webinar, DOE Zero Energy Ready Home: Ventilation and Filtration Strategies with Indoor airPLUS, presented in August 2014. Watch the presentation.

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

    SciTech Connect

    Less, Brennan; Walker, Iain

    2014-06-01

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

  10. 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 (970.38 KB) ...

  11. Building America: Score with Indoor Air Quality Webinar (Text Version)

    Office of Energy Efficiency and Renewable Energy (EERE)

    Here you find the text version of the webinar, Building America: Score with Indoor Air Quality, presented in October 2016.

  12. Indoor airPLUS Construction Specifications Version 1 (Rev. 02)

    Office of Energy Efficiency and Renewable Energy (EERE)

    Indoor airPLUS Construction Specifications Version 1 (Rev. 02), November 2013, from the U.S. Environmental Protection Agency.

  13. Equivalence in Ventilation and Indoor Air Quality

    SciTech Connect

    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.

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

    SciTech Connect

    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.

  15. Indoor air quality & airborne disease control in healthcare facilities...

    Office of Scientific and Technical Information (OSTI)

    Subject: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; MEDICAL ESTABLISHMENTS; INDOOR AIR POLLUTION; CONTROL SYSTEMS; DISEASES; THERMAL COMFORT; SPACE HVAC SYSTEMS Word ...

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

    SciTech Connect

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

    2008-10-01

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

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

    SciTech Connect

    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.

  18. Building America Case Study: Ventilation System Effectiveness and Tested Indoor Air Quality Impacts, Tyler, Texas (Fact Sheet), Technology Solutions for New and Existing Homes, Energy Efficiency & Renewable Energy (EERE)

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Ventilation System Effectiveness and Tested Indoor Air Quality Impacts Tyler, Texas PROJECT INFORMATION Project Name: Ventilation Effectiveness Location: Tyler, TX Partners: University of Texas, TxAIRE, uttyler.edu/txaire/houses/ Building Science Corporation, buildingscience.com Building Component: Heating, ventilating, and air conditioning (HVAC), whole-building dilution ventilation Application: New and retrofit; single-family and multifamily Year Tested: 2012 Climate Zones: All PERFORMANCE

  19. Ventilation System Effectiveness and Tested Indoor Air Quality Impacts

    SciTech Connect

    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.

  20. Ventilation System Effectiveness and Tested Indoor Air Quality Impacts

    SciTech Connect

    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.

  1. Office of radiation and indoor air: Program description

    SciTech Connect

    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.

  2. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Combustion Safety Using Appliances for Indoor Air (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Combustion Safety Using Appliances for Indoor Air ...

  3. Exposure to formaldehyde in indoor air

    SciTech Connect

    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.

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

    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.

  5. Building America: Smarter Indoor Air Quality Solutions | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Building America: Smarter Indoor Air Quality Solutions Building America: Smarter Indoor Air Quality Solutions The Building America projects exemplify how added tightness with improved source control, dilution, and high efficiency filtration can have little or no energy penalty. This page provides a brief description of the teams, areas of focus, and key team members. Learn more about Building America's world-class research. Team Lead: Gas Technology Institute-Des Plaines, IL Team

  6. Energy Auditor - Single Family 2.0: Indoor Air Quality | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Indoor Air Quality Energy Auditor - Single Family 2.0: Indoor Air Quality Indoor Air Quality - Complete (4.73 MB) Lesson Plan: Indoor Air Quality (250.28 KB) PowerPoint: Indoor Air Quality (4.59 MB) More Documents & Publications Energy Auditor - Single Family 2.0: Mechanical Ventilation Energy Auditor - Single Family 2.0: Building Assessment

  7. An Innovative Reactor Technology to Improve Indoor Air Quality

    SciTech Connect

    Rempel, Jane

    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.

  8. Technology Solutions Case Study: Ventilation System Effectiveness and Tested Indoor Air Quality Impacts

    SciTech Connect

    A. Rudd and D. Bergey

    2015-08-01

    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 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.

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

    SciTech Connect

    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.

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

    SciTech Connect

    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.

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

    SciTech Connect

    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.

  12. Building America Case Study: Ventilation System Effectiveness and Tested Indoor Air Quality Impacts, Tyler, Texas

    SciTech Connect

    2015-08-01

    ?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 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. 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.

  13. Air Sealing for New Home Construction | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    » Air Sealing for New Home Construction Air Sealing for New Home Construction Air Sealing for New Home Construction Minimizing air movement in and out of a house is key to building an energy-efficient home. Controlling air leakage is also critical to moisture control. It's always best to use techniques and materials identified as best practices for your site and climate. Climate-specific construction details are available through Building America. Here are some general air sealing techniques

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

    SciTech Connect

    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.

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

    DOEpatents

    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.

  16. Building America Technology Solutions for New and Existing Homes: Air

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Leakage and Air Transfer Between Garage and Living Space | Department of Energy Building America Technology Solutions for New and Existing Homes: Air Leakage and Air Transfer Between Garage and Living Space Building America Technology Solutions for New and Existing Homes: Air Leakage and Air Transfer Between Garage and Living Space In this project, Building Science Corporation worked with production home builder K. Hovnanian to conduct testing at a single-family home in Waldorf, Maryland,

  17. HIA 2015 DOE Zero Energy Ready Home Case Study: Habitat for Humanity...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Agency's Indoor airPLUS. Each home meets the hot water distribution ... In addition, homes are required to have solar electric panels installed or have the conduit and ...

  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. DOE Challenge Home Label Methodology | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Label Methodology DOE Challenge Home Label Methodology A document of the U.S. Department of Energy's Zero Energy Ready Home (formerly Challenge Home) program. ch_label_methodology_1012.pdf (222.71 KB) More Documents & Publications DOE Zero Energy Ready Home Partner Resources Indoor airPLUS Construction Specifications Indoor airPLUS Construction Specifications Version 1 (Rev. 02)

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

    SciTech Connect

    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.

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

    Office of Scientific and Technical Information (OSTI)

    of airborne chemical species by building materials and furnishings in the indoor environment. The model is applied to describe the interaction between formaldehyde in building...

  2. Air Conditioning | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    An air conditioner cools your home with a cold indoor coil called the evaporator. The condenser, a hot outdoor coil, releases the collected heat outside. The evaporator and ...

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

    SciTech Connect

    Hellweg, Stefanie; Demou, Evangelia; Bruzzi, Raffaella; Meijer, Arjen; Rosenbaum, Ralph K.; Huijbregts, Mark A.J.; McKone, Thomas E.

    2008-12-21

    Neglecting health effects from indoor pollutant emissions and exposure, as currently done in Life Cycle Assessment (LCA), may result in product or process optimizations at the expense of workers? or consumers? health. To close this gap, methods for considering indoor exposure to chemicals are needed to complement the methods for outdoor human exposure assessment already in use. This paper summarizes the work of an international expert group on the integration of human indoor and outdoor exposure in LCA, within the UNEP/SETAC Life Cycle Initiative. A new methodological framework is proposed for a general procedure to include human-health effects from indoor exposure in LCA. Exposure models from occupational hygiene and household indoor air quality studies and practices are critically reviewed and recommendations are provided on the appropriateness of various model alternatives in the context of LCA. A single-compartment box model is recommended for use as a default in LCA, enabling one to screen occupational and household exposures consistent with the existing models to assess outdoor emission in a multimedia environment. An initial set of model parameter values was collected. The comparison between indoor and outdoor human exposure per unit of emission shows that for many pollutants, intake per unit of indoor emission may be several orders of magnitude higher than for outdoor emissions. It is concluded that indoor exposure should be routinely addressed within LCA.

  4. NREL Solar Technology Will Warm Air at 'Home' - News Feature...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    NREL Solar Technology Will Warm Air at 'Home' July 30, 2010 Photo of a building coved in ... to a wall at the RSF that uses their award-winning transpired air collector technology. ...

  5. Air Sealing for New Home Construction | Department of Energy

    Energy.gov [DOE] (indexed site)

    and climate zone. < Minimizing air movement in and out of a house is key to building an energy-efficient home. Controlling air leakage is also critical to moisture control. It's...

  6. Do-It-Yourself Home Energy Audits | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Consider Ventilation When sealing any home, you must always be aware of the danger of indoor air pollution and combustion appliance "backdrafts." Backdrafting is when the various ...

  7. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Building America Technology Solutions for New and Existing Homes: Combustion Safety Using Appliances for Indoor Air (Fact Sheet) Building America Technology Solutions for New and...

  8. Do-It-Yourself Home Energy Audits | Department of Energy

    Energy.gov [DOE] (indexed site)

    Ventilation When sealing any home, you must always be aware of the danger of indoor air pollution and combustion appliance "backdrafts." Backdrafting is when the various...

  9. Building America Technology Solutions for New and Existing Homes:

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Combustion Safety Using Appliances for Indoor Air (Fact Sheet) | Department of Energy Combustion Safety Using Appliances for Indoor Air (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Combustion Safety Using Appliances for Indoor Air (Fact Sheet) In this case study, the Partnership for Advanced Residential Retrofit team provides guidance on how to assess and carry out the combustion safety procedures for appliances and heating equipment that uses indoor air for

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

    SciTech Connect

    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.

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

    SciTech Connect

    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.

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

    SciTech Connect

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

    2007-02-01

    We previously reported that gas-phase byproducts of incomplete oxidation were generated when a prototype ultraviolet photocatalytic oxidation (UVPCO) air cleaner was operated in the laboratory with indoor-relevant mixtures of VOCs at realistic concentrations. Under these conditions, there was net production of formaldehyde and acetaldehyde, two important indoor air toxicants. Here, we further explore the issue of byproduct generation. Using the same UVPCO air cleaner, we conducted experiments to identify common VOCs that lead to the production of formaldehyde and acetaldehyde and to quantify their production rates. We sought to reduce the production of formaldehyde and acetaldehyde to acceptable levels by employing different chemisorbent scrubbers downstream of the UVPCO device. Additionally, we made preliminary measurements to estimate the capacity and expected lifetime of the chemisorbent media. For most experiments, the system was operated at 680-780 m{sup 3}/h (400-460 cfm). A set of experiments was conducted with common VOCs introduced into the UVPCO device individually and in mixture. Compound conversion efficiencies and the production of formaldehyde and acetaldehyde were determined by comparison of compound concentrations upstream and downstream of the reactor. There was general agreement between compound conversions efficiencies determined individually and in the mixture. This suggests that competition among compounds for active sites on the photocatalyst surface will not limit the performance of the UVPCO device when the total VOC concentration is low. A possible exception was the very volatile alcohols, for which there were some indications of competitive adsorption. The results also showed that formaldehyde was produced from many commonly encountered VOCs, while acetaldehyde was generated by specific VOCs, particularly ethanol. The implication is that formaldehyde concentrations are likely to increase when an effective UVPCO air cleaner is used in

  13. Pending indoor air quality and radon abatement legislation. Hearing before the Subcommittee on Clean Air and Nuclear Regulation of the Committee on Environment and Public Works, United States Senate, One Hundred Third Congress, First Session on S. 656 and S. 657, May 25, 1993

    SciTech Connect

    Not Available

    1993-01-01

    This hearing on pending indoor air quality and radon abatement legislation includes testimony from individuals and representatives of the following groups: Business Council on Indoor Air; American Lung Association; Consumer Federation of America; Radiation Protection Programs, NJ; School of Hygiene and Public Health, Johns Hopkins University; AFL-CIO; EPA; National Parent Teacher Association. Additional material includes statements from: American Lung Assoc.; Alliance for Radon Reduction; Alliance to Save Energy; American Industrial Hygiene Assoc.; Bowser Morner, Inc.; Building Owners and Managers Assoc. International; Chemical Specialties Manufacturers Assoc.; Council for American Private Education; National Assoc. of Home Builders; National Assoc. of Realtors; National School Boards Assoc.; Sheet Metal and Air Conditioning Contractors National Assoc.

  14. Health and Safety Guide for Home Performance Contractors (Technical...

    Office of Scientific and Technical Information (OSTI)

    we are not compromising the indoor air quality of the home. This means identifying and mitigating or eliminating pollution sources before and after you make changes to the home. ...

  15. Sealing Your Home | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Sealing Your Home Sealing Your Home Caulking can reduce heating and cooling costs and improve comfort in your home. Caulking can reduce heating and cooling costs and improve comfort in your home. Air leakage, or infiltration, occurs when outside air enters a house uncontrollably through cracks and openings. Properly air sealing can significantly reduce heating and cooling costs, improve building durability, and create a healthier indoor environment. In addition to air sealing, you'll also want

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

    Office of Legacy Management (LM)

    EP A Environmental Protection Indoor Air August 1997 Agency Washington, DC 20460 EPA-402-R-97-015 GEPA Offsite Environmental RECEIVED Monitoring Report , , , , , , 0 . S T I Radiation Monitoring Around United States Nuclear Test Areas, Calendar Year 1996 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Governrnent. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied,

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

    SciTech Connect

    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.

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

    SciTech Connect

    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.

  19. Causes of Indoor Air Quality Problems in Schools: Summary of Scientific Research

    SciTech Connect

    Bayer, C.W.

    2001-02-22

    In the modern urban setting, most individuals spend about 80% of their time indoors and are therefore exposed to the indoor environment to a much greater extent than to the outdoors (Lebowitz 1992). Concomitant with this increased habitation in urban buildings, there have been numerous reports of adverse health effects related to indoor air quality (IAQ) (sick buildings). Most of these buildings were built in the last two decades and were constructed to be energy-efficient. The quality of air in the indoor environment can be altered by a number of factors: release of volatile compounds from furnishings, floor and wall coverings, and other finishing materials or machinery; inadequate ventilation; poor temperature and humidity control; re-entrainment of outdoor volatile organic compounds (VOCs); and the contamination of the indoor environment by microbes (particularly fungi). Armstrong Laboratory (1992) found that the three most frequent causes of IAQ are (1) inadequate design and/or maintenance of the heating, ventilation, and air-conditioning (HVAC) system, (2) a shortage of fresh air, and (3) lack of humidity control. A similar study by the National Institute for Occupational Safety and Health (NIOSH 1989) recognized inadequate ventilation as the most frequent source of IAQ problems in the work environment (52% of the time). Poor IAQ due to microbial contamination can be the result of the complex interactions of physical, chemical, and biological factors. Harmful fungal populations, once established in the HVAC system or occupied space of a modern building, may episodically produce or intensify what is known as sick building syndrome (SBS) (Cummings and Withers 1998). Indeed, SBS caused by fungi may be more enduring and recalcitrant to treatment than SBS from multiple chemical exposures (Andrae 1988). An understanding of the microbial ecology of the indoor environment is crucial to ultimately resolving many IAQ problems. The incidence of SBS related to multiple

  20. DOE Tour of Zero: Vision Hill Lot 1 by Mandalay Homes | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    This one-level high-efficiency home meets the criteria of the DOE ZERH, ENERGY STAR, Indoor airPLUS, EPA WaterSense, and LEED for Homes Silver programs. 3 of 8 Tiles combine with ...

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

    SciTech Connect

    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.

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

    SciTech Connect

    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.

  3. DOE Zero Ready Home Case Study: Caldwell and Johnson, Church...

    Energy Saver

    ... KEY FEATURES * DOE Zero Energy Ready Home Path: Performance * Walls: Framed 16 in. o.c. ... air-source heat pump (8.5 HSPF, 18 SEER), 1 outside unit, 4 indoor units * Hot ...

  4. DOE Zero Energy Ready Home Savings and Cost Estimate Summary | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Savings and Cost Estimate Summary DOE Zero Energy Ready Home Savings and Cost Estimate Summary The U.S. Department of Energy Zero Energy Ready Home Savings and Cost Estimate Summary, October 2015 DOE Zero Energy Ready Home - Cost & Savings Summary OCT 2015.pdf (652.24 KB) More Documents & Publications Indoor airPLUS Construction Specifications Indoor airPLUS Construction Specifications Version 1 (Rev. 02) Washington DOE ZERH

  5. A "Plug-n-Play" Air Delivery System for Low-Load Homes and Evaluation...

    Energy Saver

    A "Plug-n-Play" Air Delivery System for Low-Load Homes and Evaluation of a Residential Thermal Comfort Rating Method Traditional air distribution system. Graphic courtesy of ...

  6. Air-To-Water Heat Pumps with Radiant Delivery in Low Load Homes...

    Energy Saver

    Air-to-Water Heat Pumps With Radiant Delivery in Low Load Homes Tucson, Arizona and Chico, California PROJECT INFORMATION Project Name: Field testing of air-to-water heat pump ...

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

    ScienceCinema

    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).

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

    SciTech Connect

    Charles Weschler

    2010-03-29

    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).

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

    SciTech Connect

    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.

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

    Energy.gov [DOE]

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

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

    SciTech Connect

    Apte, Michael G.; Apte, Joshua S.

    2010-04-27

    The Paharpur Business Centre and Software Technology Incubator Park (PBC) is a 7 story, 50,400 ft{sup 2} office building located near Nehru Place in New Delhi India. The occupancy of the building at full normal operations is about 500 people. The building management philosophy embodies innovation in energy efficiency while providing full service and a comfortable, safe, healthy environment to the occupants. Provision of excellent Indoor Air Quality (IAQ) is an expressed goal of the facility, and the management has gone to great lengths to achieve it. This is particularly challenging in New Delhi, where ambient urban pollution levels rank among the worst on the planet. The approach to provide good IAQ in the building includes a range of technical elements: air washing and filtration of ventilation intake air from rooftop air handler, the use of an enclosed rooftop greenhouse with a high density of potted plants as a bio-filtration system, dedicated secondary HVAC/air handling units on each floor with re-circulating high efficiency filtration and UVC treatment of the heat exchanger coils, additional potted plants for bio-filtration on each floor, and a final exhaust via the restrooms located at each floor. The conditioned building exhaust air is passed through an energy recovery wheel and chemisorbent cartridge, transferring some heat to the incoming air to increase the HVAC energy efficiency. The management uses 'green' cleaning products exclusively in the building. Flooring is a combination of stone, tile and 'zero VOC' carpeting. Wood trim and finish appears to be primarily of solid sawn materials, with very little evidence of composite wood products. Furniture is likewise in large proportion constructed from solid wood materials. The overall impression is that of a very clean and well-kept facility. Surfaces are polished to a high sheen, probably with wax products. There was an odor of urinal cake in the restrooms. Smoking is not allowed in the building. The

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

    SciTech Connect

    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.

  13. Guidelines for Participating in the DOE Zero Energy Ready Home | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Zero Energy Ready Home » Guidelines for Participating in the DOE Zero Energy Ready Home Guidelines for Participating in the DOE Zero Energy Ready Home The DOE Zero Energy Ready Home is a new and compelling way to recognize builders for their leadership in increasing energy efficiency, improving indoor air quality, and making homes zero energy ready. The program builds upon the comprehensive building science requirements of ENERGY STAR® for Homes Version 3, along with proven

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

    Office of Energy Efficiency and Renewable Energy (EERE)

    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.

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

    SciTech Connect

    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.

  16. Cheap Fixes for Beating the Heat Indoors | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cheap Fixes for Beating the Heat Indoors Cheap Fixes for Beating the Heat Indoors July 25, 2013 - 11:20am Addthis Blinds are a great option for cooling your home in the summer. | Photo courtesy of ©iStockphoto/nycshooter Blinds are a great option for cooling your home in the summer. | Photo courtesy of ©iStockphoto/nycshooter Erik Hyrkas Erik Hyrkas Media Relations Specialist, Office of Energy Efficiency & Renewable Energy How can I participate? Instead of turning on the air

  17. Managing the Drivers of Air Flow and Water Vapor Transport in Existing Single Family Homes (Revised)

    SciTech Connect

    Cummings, J.; Withers, C.; Martin, E.; Moyer, N.

    2012-10-01

    This document focuses on managing the driving forces which move air and moisture across the building envelope. While other previously published Measure Guidelines focus on elimination of air pathways, the ultimate goal of this Measure Guideline is to manage drivers which cause air flow and water vapor transport across the building envelope (and also within the home), control air infiltration, keep relative humidity (RH) within acceptable limits, avoid combustion safety problems, improve occupant comfort, and reduce house energy use.

  18. DOE Zero Energy Ready Home Recommended Quality Management Provisions |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Zero Energy Ready Home Recommended Quality Management Provisions DOE Zero Energy Ready Home Recommended Quality Management Provisions DOE Zero Energy Ready Home Recommended Quality Management Provisions. QM Cheklist.pdf (34.28 KB) More Documents & Publications Version Tracking Document for DOE Challenge Homes, National Program Requirements (Rev. 03) Washington DOE ZERH Program Requirements Indoor airPLUS Version 1 (Rev. 01) Verification Checklist

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

    SciTech Connect

    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.

  20. NREL Solar Technology Will Warm Air at 'Home' - News Feature | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    NREL Solar Technology Will Warm Air at 'Home' July 30, 2010 Photo of a building coved in perforated metal, with two men standing next to it. Enlarge image NREL's Craig Christensen and Chuck Kutscher stand next to a wall at the RSF that uses their award-winning transpired air collector technology. Credit: Dennis Schroeder Sometimes the way back home isn't straightforward. But once you find your way, you know you'll be welcomed with open arms. Transpired solar air collector technology PDF ,

  1. DOE Zero Energy Ready Home Case Study: Weiss Building & Development, Downers Grove, Illinois

    SciTech Connect

    none,

    2013-09-01

    This single-family home built in a peat bog has underground storage tanks and drainage tanks, blown fiberglass insulation, coated rigid polyisocyanurate, and flashing. The 3,600-square-foot custom home built by Weiss Building & Development LLC is the first home in Illinois certified to the DOE Challenge Home criteria, which requires that homes meet the EPA Indoor airPlus guidelines.The builder won a 2013 Housing Innovation Award in the custom builder category.

  2. Building America Technologies Solutions Case Study: Ventilation System Effectiveness and Tested Indoor Air Quality Impacts

    Energy.gov [DOE]

    In this study, the Building America team Building Science Corporation tested the effectiveness of various ventilation systems at two unoccupied, single-family lab homes at the University of Texas at Tyler.

  3. A survey and critical review of the literature on indoor air quality, ventilation and health symptoms in schools

    SciTech Connect

    Daisey, J.M.; Angell, W.J.

    1998-03-01

    A survey and critical review were undertaken of existing published literature and reports on indoor air quality (IAQ), ventilation, and IAQ- and building-related health problems in schools, including California schools. Over 450 relevant publications were obtained and reviewed, including papers published in the archival peer-reviewed scientific literature, proceedings of scientific meetings, government reports, 77 NIOSH Health Hazard Evaluation Reports (HHER) and 70 reports on investigations of problem schools in California. Most of the reviewed literature was for complaint or problem schools. The types of health symptoms reported in schools were very similar to those defined as sick building syndrome (SBS) symptoms, although this may be due, at least in part, to the type of health symptom questionnaires used. Some of the symptoms, e.g., wheezing, are indicative of asthma. In the studies in which complaint and noncomplaint buildings or areas were compared, complaint buildings generally had higher rates of health symptoms.

  4. Distribution and Room Air Mixing Risks to Retrofitted Homes

    SciTech Connect

    Burdick, A.

    2014-12-01

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

  5. Distribution and Room Air Mixing Risks to Retrofitted Homes

    SciTech Connect

    Burdick, A.

    2014-12-01

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

  6. Homes

    Energy.gov [DOE]

    Learn about how the Energy Department is working to improve energy use in homes and ways you can take action to reduce your home's energy bills.

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

    SciTech Connect

    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.

  8. Building America Technology Solutions Case Study: Ventilation System Effectiveness and Tested Indoor Air Quality Impacts

    Energy.gov [DOE]

    Building Science Corporation tested the effectiveness of various ventilation systems at two unoccupied, single-family lab homes at the University of Texas at Tyler. The only difference was that House 1 had a vented attic and House 2 had an unvented attic assembly.

  9. Airtightness Results of Roof-Only Air Sealing Strategies on 1 ½-Story Homes in Cold Climates

    SciTech Connect

    Ojczyk, C.; Murry, T.; Mosiman, G.

    2014-07-01

    In this second study on solutions to ice dams in 1-1/2 story homes, the NorthernSTAR Building America Partnership team analyzed five test homes located in both cold and very cold climates for air leakage reduction rates following modifications by independent contractors on owner-occupied homes. These homes were chosen for testing as they are common in Minnesota and very difficult to air seal and insulate effectively. Two projects followed a roof-only Exterior Thermal Moisture Management System (ETMMS) process. One project used an interior-only approach to roof air sealing and insulation. The remaining two projects used a deep energy retrofit approach for whole house (foundation wall, above grade wall, roof) air leakage and heat loss reduction. All were asked to provide information regarding project goals, process, and pre and post-blower door test results. Additional air leakage reduction data was provided by several NorthernSTAR industry partners for interior-applied, roof-only modifications on 1-1/2 story homes. The data represents homes in the general market as well as homes that were part of the state of Minnesota weatherization program. A goal was to compare exterior air sealing methods with interior approaches. This pool of data enabled the team to compare air tightness data from over 220 homes using similar air seal methods.

  10. Effects on carbon monoxide levels in mobile homes using unvented kerosene heaters for residential heating

    SciTech Connect

    Williams, R.; Walsh, D.; White, J.; Jackson, M.; Mumford, J.

    1992-01-01

    Carbon monoxide (CO) emission levels were continuously monitored in 8 mobile trailer homes less than 10 years old. These homes were monitored in an US EPA study on indoor air quality as affected by unvented portable kerosene heaters. Respondents were asked to operate their heaters in a normal fashion. CO, air exchange and temperature values were measured during the study in each home. Results indicate that consumers using unvented kerosene heaters may be unknowingly exposed to high CO levels without taking proper precautions.

  11. Airtightness Results of Roof-Only Air Sealing Strategies on 1-1/2 Story Homes in Cold Climates

    SciTech Connect

    Ojczyk, C.; Murry, T.; Mosiman, G.

    2014-07-01

    In this second study on solutions to ice dams in 1-1/2 story homes, five test homes located in both cold and very cold climates were analyzed for air leakage reduction rates following modifications by independent contractors on owner-occupied homes. The reason for choosing this house type was they are very common in our area and very difficult to air seal and insulate effectively. Two projects followed a roof-only Exterior Thermal Moisture Management System (ETMMS) process. One project used an interior-only approach to roof air sealing and insulation. The remaining two projects used a deep energy retrofit approach for whole house (foundation wall, above grade wall, roof) air leakage and heat loss reduction. All were asked to provide information regarding project goals, process, and pre and post-blower door test results. Additional air leakage reduction data was provided by several NorthernSTAR Building America industry partners for interior-applied, roof-only modifications on 1-1/2 story homes. The data represents homes in the general market as well as homes that were part of the state of Minnesota weatherization program. A goal was to compare exterior air sealing methods with interior approaches. This pool of data enabled us to compare air tightness data from over 220 homes using similar air seal methods.

  12. DOE Tour of Zero: Vision Hill Lot 1 by Mandalay Homes | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Vision Hill Lot 1 by Mandalay Homes DOE Tour of Zero: Vision Hill Lot 1 by Mandalay Homes 1 of 8 Mandalay Homes built this 3,181-square-foot home in Glendale, Arizona, to the performance criteria of the U.S. Department of Energy Zero Energy Ready Home (ZERH) program. 2 of 8 This one-level high-efficiency home meets the criteria of the DOE ZERH, ENERGY STAR, Indoor airPLUS, EPA WaterSense, and LEED for Homes Silver programs. 3 of 8 Tiles combine with stone to form pervious surfaces

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

    SciTech Connect

    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.

  14. A "Plug-n-Play" Air Delivery System for Low-Load Homes and Evaluation of a

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Residential Thermal Comfort Rating Method | Department of Energy A "Plug-n-Play" Air Delivery System for Low-Load Homes and Evaluation of a Residential Thermal Comfort Rating Method A "Plug-n-Play" Air Delivery System for Low-Load Homes and Evaluation of a Residential Thermal Comfort Rating Method Traditional air distribution system. Graphic courtesy of IBACOS, Inc. Traditional air distribution system. Graphic courtesy of IBACOS, Inc. "Plug-n-Play" air delivery

  15. Managing the Drivers of Air Flow and Water Vapor Transport in Existing Single-Family Homes

    SciTech Connect

    Cummings, James; Withers, Charles; Martin, Eric; Moyer, Neil

    2012-10-01

    This report is a revision of an earlier report titled: Measure Guideline: Managing the Drivers of Air Flow and Water Vapor Transport in Existing Single-Family Homes. Revisions include: Information in the text box on page 1 was revised to reflect the most accurate information regarding classifications as referenced in the 2012 International Residential Code. “Measure Guideline” was dropped from the title of the report. An addition was made to the reference list.

  16. Air-to-Water Heat Pumps With Radiant Delivery in Low-Load Homes

    SciTech Connect

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

    2013-12-01

    Space conditioning represents nearly 50% of average residential household energy consumption, highlighting the need to identify alternative cost-effective, energy-efficient cooling and heating strategies. As homes are better built, there is an increasing need for strategies that are particularly well suited for high performance, low load homes. ARBI researchers worked with two test homes in hot-dry climates to evaluate the in-situ performance of air-to-water heat pump systems, an energy efficient space conditioning solution designed to cost-effectively provide comfort in homes with efficient, safe, and durable operation. Two monitoring projects of test houses in hot-dry climates were initiated in 2010 to test this system. Both systems were fully instrumented and have been monitored over one year to capture complete performance data over the cooling and heating seasons. Results are used to quantify energy savings, cost-effectiveness, and system performance using different operating modes and strategies. A calibrated TRNSYS model was developed and used to evaluate performance in various climate regions. This strategy is most effective in tight, insulated homes with high levels of thermal mass (i.e. exposed slab floors).

  17. Air-to-Water Heat Pumps With Radiant Delivery in Low-Load Homes

    SciTech Connect

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

    2013-12-01

    Space conditioning represents nearly 50% of average residential household energy consumption, highlighting the need to identify alternative cost-effective, energy-efficient cooling and heating strategies. As homes are better built, there is an increasing need for strategies that are particularly well suited for high performance, low load homes. ARBI researchers worked with two test homes in hot-dry climates to evaluate the in-situ performance of air-to-water heat pump (AWHP) systems, an energy efficient space conditioning solution designed to cost-effectively provide comfort in homes with efficient, safe, and durable operation. Two monitoring projects of test houses in hot-dry climates were initiated in 2010 to test this system. Both systems were fully instrumented and have been monitored over one year to capture complete performance data over the cooling and heating seasons. Results are used to quantify energy savings, cost-effectiveness, and system performance using different operating modes and strategies. A calibrated TRNSYS model was developed and used to evaluate performance in various climate regions. This strategy is most effective in tight, insulated homes with high levels of thermal mass (i.e. exposed slab floors).

  18. Mountain Home Air Force Base, Idaho Geothermal Resource Assessment and Future Recommendations

    SciTech Connect

    Joseph C. Armstrong; Robert P. Breckenridge; Dennis L. Nielson; John W. Shervais; Thomas R. Wood

    2013-03-01

    The U.S. Air Force is facing a number of challenges as it moves into the future, one of the biggest being how to provide safe and secure energy to support base operations. A team of scientists and engineers met at Mountain Home Air Force Base in early 2011 near Boise, Idaho, to discuss the possibility of exploring for geothermal resources under the base. The team identified that there was a reasonable potential for geothermal resources based on data from an existing well. In addition, a regional gravity map helped identify several possible locations for drilling a new well. The team identified several possible sources of funding for this well—the most logical being to use U.S. Department of Energy funds to drill the upper half of the well and U.S. Air Force funds to drill the bottom half of the well. The well was designed as a slimhole well in accordance with State of Idaho Department of Water Resources rules and regulations. Drilling operations commenced at the Mountain Home site in July of 2011 and were completed in January of 2012. Temperatures increased gradually, especially below a depth of 2000 ft. Temperatures increased more rapidly below a depth of 5500 ft. The bottom of the well is at 5976 ft, where a temperature of about 140°C was recorded. The well flowed artesian from a depth below 5600 ft, until it was plugged off with drilling mud. Core samples were collected from the well and are being analyzed to help understand permeability at depth. Additional tests using a televiewer system will be run to evaluate orientation and directions at fractures, especially in the production zone. A final report on the well exploitation will be forthcoming later this year. The Air Force will use it to evaluate the geothermal resource potential for future private development options at Mountain Home Air Force Base. In conclusion, Recommendation for follow-up efforts include the following:

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

    SciTech Connect

    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

  20. Exploration and Resource Assessment at Mountain Home Air Force Base, Idaho Using an Integrated Team Approach

    SciTech Connect

    Joseph C. Armstrong; Robert P. Breckenridge; Dennis L. Nielson; John W. Shervais; Thomas R. Wood

    2012-10-01

    The U.S. Air Force is facing a number of challenges as it moves into the future, one of the biggest being how to provide safe and secure energy to support base operations. A team of scientists and engineers met at Mountain Home Air Force Base near Boise, Idaho, to discuss the possibility of exploring for geothermal resources under the base. The team identified that there was a reasonable potential for geothermal resources based on data from an existing well. In addition, a regional gravity map helped identify several possible locations for drilling a new well. The team identified several possible sources of funding for this well—the most logical being to use U.S. Department of Energy funds to drill the upper half of the well and U.S. Air Force funds to drill the bottom half of the well. The well was designed as a slimhole well in accordance with State of Idaho Department of Water Resources rules and regulations. Drilling operations commenced at the Mountain Home site in July of 2011 and were completed in January of 2012. Temperatures increased gradually, especially below a depth of 2000 ft. Temperatures increased more rapidly below a depth of 5500 ft. The bottom of the well is at 5976 ft, where a temperature of about 140°C was recorded. The well flowed artesian from a depth below 5600 ft, until it was plugged off with drilling mud. Core samples were collected from the well and are being analyzed to help understand permeability at depth. Additional tests using a televiewer system will be run to evaluate orientation and directions at fractures, especially in the production zone. A final report on the well exploitation will be forthcoming later this year. The Air Force will use it to evaluate the geothermal resource potential for future private development options at Mountain Home AFB.

  1. Best Practices Case Study: Tommy Williams Homes -Gainesville, FL

    SciTech Connect

    none,

    2011-04-01

    Case study of Tommy Williams Homes who has continued to outsell the competition with sales increasing despite the recession thanks to a systems-engineering approach developed with DOE’s Building America that yields high energy efficiency, comfort, and indoor air quality. The company offers to pay buyers’ energy bills for the first year.

  2. I/O values for determination of the origin of some indoor organic pollutants

    SciTech Connect

    Otson, R.; Zhu, J.

    1997-12-31

    To reduce human health risks resulting from exposure to toxic chemicals, it is important to determine the origin of such substances. The ratio (I/O) of indoor to outdoor concentrations of selected airborne vapor phase organic compounds (VPOC) was used to estimate the contribution of indoor sources to levels of the compounds in the air of 44 homes selected randomly in the Greater Toronto Area (GTA). Average I/O values for all of the homes were greater 1.5 for 10 of the 20 detected target compounds, and it could be concluded that indoor VPOC sources had a greater impact on indoor air quality than outdoor air in these instances. A significant finding, which aptly demonstrates the importance of indoor sources and pollution, was the overall I/O value of 5.2 for the 44 representative GTA homes. Possible indoor sources for most of the 10 compounds could be identified, based on information collected by means of a questionnaire, as well as from the scientific literature. However, possible sources for some compounds could not be determined as readily, probably because of the presence of multiple sources, and sources which had not been previously noted, such as foods and beverages. The sensitivity of I/O values to various factors (e.g., source strength, air exchange rates, precision of measurements, unanticipated sources), and the reliability of determining the origin of pollutants by use of I/O values alone were examined, with some examples. If used judiciously, the I/O value can be a useful tool for IAQ investigations.

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

    SciTech Connect

    Roberts, S.; Stephenson, R.

    2012-09-01

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

  4. Climate change and health: Indoor heat exposure in vulnerable populations

    SciTech Connect

    White-Newsome, Jalonne L.; Sanchez, Brisa N.; Jolliet, Olivier; Zhang, Zhenzhen; Parker, Edith A.; Timothy Dvonch, J.; O'Neill, Marie S.

    2012-01-15

    Introduction: Climate change is increasing the frequency of heat waves and hot weather in many urban environments. Older people are more vulnerable to heat exposure but spend most of their time indoors. Few published studies have addressed indoor heat exposure in residences occupied by an elderly population. The purpose of this study is to explore the relationship between outdoor and indoor temperatures in homes occupied by the elderly and determine other predictors of indoor temperature. Materials and methods: We collected hourly indoor temperature measurements of 30 different homes; outdoor temperature, dewpoint temperature, and solar radiation data during summer 2009 in Detroit, MI. We used mixed linear regression to model indoor temperatures' responsiveness to weather, housing and environmental characteristics, and evaluated our ability to predict indoor heat exposures based on outdoor conditions. Results: Average maximum indoor temperature for all locations was 34.85 Degree-Sign C, 13.8 Degree-Sign C higher than average maximum outdoor temperature. Indoor temperatures of single family homes constructed of vinyl paneling or wood siding were more sensitive than brick homes to outdoor temperature changes and internal heat gains. Outdoor temperature, solar radiation, and dewpoint temperature predicted 38% of the variability of indoor temperatures. Conclusions: Indoor exposures to heat in Detroit exceed the comfort range among elderly occupants, and can be predicted using outdoor temperatures, characteristics of the housing stock and surroundings to improve heat exposure assessment for epidemiological investigations. Weatherizing homes and modifying home surroundings could mitigate indoor heat exposure among the elderly.

  5. ZERH Webinar: Lazy Air Conditioning - HVAC & Humidity Control | Department

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    of Energy ZERH Webinar: Lazy Air Conditioning - HVAC & Humidity Control ZERH Webinar: Lazy Air Conditioning - HVAC & Humidity Control November 30, 2016 11:30AM to 12:30PM CST DOE Zero Energy Ready Homes are not only very efficient, but are also designed and built for optimal comfort, indoor air quality, and durability. As homes are built to more rigorous efficiency measures, a proper HVAC system design becomes even more critical in these high-performance homes. In this webinar, Ken

  6. Formaldehyde measurements in five new unoccupied energy efficient manufactured homes

    SciTech Connect

    Parker, G.B.; Onisko, S.A.

    1986-11-01

    Week-long integrated formaldehyde levels were measured over eight weeks in five new unoccupied energy efficient manufactured homes. These homes were constructed to the specifications set forth in the Model Conservation Standards (MCS) established by the Northwest Power Planning Council for site-built homes. The MCS standards exceed the Housing and Urban Development's (HUD) standards that currently apply to manufactured homes nationwide. Two of the homes were located at Richland, Washington, and three homes were located at Vancouver, Washington. Among other features of the MCS, the homes are equipped with air-to-air heat exchangers (AAHX) to supply additional fresh air ventilation. The first four weeks of testing were conducted with the AAHX off and the second four-week measurement period was conducted with the AAHX continuously on the HI setting. Formaldehyde levels ranged from 0.047 ppM the fifth week of the testing in a double wide home (with the AAHX turned on) to 0.164 ppM in the single wide home in the first week of measurements with the AAHX off. At no time did the formaldehyde levels exceed 0.4 ppM, the HUD targeted indoor level based on HUD codes for formaldehyde emissions from plywood and particle board building materials used in the homes. There was no strong correlation between formaldehyde levels and the measured air exchange rate. 9 refs., 2 figs., 3 tabs.

  7. Indoor Environment Program 1990 annual report

    SciTech Connect

    Not Available

    1992-01-01

    Approximately 38% of the energy consumed in the United States is used in buildings. Because humans spend an average of 85% to 90% of their time indoors, energy usage by the buildings sector can have a significant impact on human comfort, health and productivity. To advance energy conservation technologies while maintaining indoor air quality, research in the Indoor Environment Program (IEP) is directed toward understanding relations between building energy (usage and technologies), indoor air quality, and human health, comfort and productivity. The IEP addresses the issue of optimizing the health, comfort and productivity of a building's occupants while maintaining the building's energy efficiency. However, because ventilation is the dominant mechanism for removing pollutants with indoor sources, reduced ventilation may produce undesirable effects on indoor air quality and on the health, comfort, and productivity of a building's occupants. This issue is an important theme for the research of other research groups and projects within IEP.

  8. Indoor Environment Program 1990 annual report

    SciTech Connect

    Not Available

    1992-01-01

    Approximately 38% of the energy consumed in the United States is used in buildings. Because humans spend an average of 85% to 90% of their time indoors, energy usage by the buildings sector can have a significant impact on human comfort, health and productivity. To advance energy conservation technologies while maintaining indoor air quality, research in the Indoor Environment Program (IEP) is directed toward understanding relations between building energy (usage and technologies), indoor air quality, and human health, comfort and productivity. The IEP addresses the issue of optimizing the health, comfort and productivity of a building`s occupants while maintaining the building`s energy efficiency. However, because ventilation is the dominant mechanism for removing pollutants with indoor sources, reduced ventilation may produce undesirable effects on indoor air quality and on the health, comfort, and productivity of a building`s occupants. This issue is an important theme for the research of other research groups and projects within IEP.

  9. 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

    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

  10. Measure Guideline: Selecting Ventilation Systems for Existing Homes

    SciTech Connect

    Aldrich, R.

    2014-02-01

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

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

    SciTech Connect

    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.

  12. Air-To-Water Heat Pumps with Radiant Delivery in Low Load Homes: Tucson, Arizona and Chico, California (Fact Sheet)

    SciTech Connect

    Not Available

    2013-11-01

    Space conditioning represents nearly 50% of average residential household energy consumption, highlighting the need to identify alternative cost-effective, energy-efficient cooling and heating strategies. As homes are better built, there is an increasing need for strategies that are particularly well suited for high performance, low load homes. ARBI researchers worked with two test homes in hot-dry climates to evaluate the in-situ performance of air-to-water heat pump (AWHP) systems, an energy efficient space conditioning solution designed to cost-effectively provide comfort in homes with efficient, safe, and durable operation. Two monitoring projects of test houses in hot-dry climates were initiated in 2010 to test this system. Both systems were fully instrumented and have been monitored over one year to capture complete performance data over the cooling and heating seasons. Results are used to quantify energy savings, cost-effectiveness, and system performance using different operating modes and strategies. A calibrated TRNSYS model was developed and used to evaluate performance in various climate regions. This strategy is most effective in tight, insulated homes with high levels of thermal mass (i.e. exposed slab floors).

  13. Home Page

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Home Cooling Systems Home Cooling Systems When it comes to cooling your house, there are a number of options beyond air conditioning. | Photo courtesy of ©iStockphoto/chrisgramly. When it comes to cooling your house, there are a number of options beyond air conditioning. | Photo courtesy of ©iStockphoto/chrisgramly. Although your first thought for cooling may be air conditioning, there are many alternatives that provide cooling with less energy use. A combination of proper insulation,

  14. Geographical distribution of benzene in air in northwestern Italy and personal exposure

    SciTech Connect

    Gilli, G.; Scursatone, E.; Bono, R.

    1996-12-01

    Benzene is a solvent strictly related to some industrial activities and to automotive emissions. After the reduction in lead content of fuel gasoline, and the consequent decrease in octane number, an increase in benzene and other aromatic hydrocarbons in gasoline occurred. Therefore, an increase in the concentration of these chemicals in the air as primary pollutants and as precursors of photochemical smog could occur in the future. The objectives of this study were to describe the benzene air pollution at three sites in northwestern Italy throughout 1991 and 1994; to examine the relationship between benzene air pollution in indoor, outdoor, and personal air as measured by a group of nonsmoking university students; and to determine the influence of environmental tobacco smoke on the level of benzene exposure in indoor air environments. The results indicate a direct relationship between population density and levels of contamination; an indoor/outdoor ratio of benzene air pollution higher than 1 during day and night; a similar level of personal and indoor air contamination; and a direct relationship between levels of personal exposure to benzene and intensity of exposure to tobacco smoke. Human exposure to airborne benzene has been found to depend principally on indoor air contamination not only in the home but also in many other confined environments. 29 refs., 2 figs., 6 tabs.

  15. Indoor unit for electric heat pump

    DOEpatents

    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.

  16. Measure Guideline. Air Sealing Mechanical Closets in Slab-on-Grade Homes

    SciTech Connect

    Dickson, Bruce

    2012-02-01

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

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

    SciTech Connect

    Dickson, B.

    2012-02-01

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

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

    SciTech Connect

    Apte, Michael G.; Mendell, Mark J.; Sohn, Michael D.; Dutton, Spencer M.; Berkeley, Pam M.; Spears, Michael

    2011-02-01

    Through mass-balance modeling of various ventilation scenarios that might satisfy the ASHRAE 62.1 Indoor Air Quality (IAQ) Procedure, we estimate indoor concentrations of contaminants of concern (COCs) in California “big box” stores, compare estimates to available thresholds, and for selected scenarios estimate differences in energy consumption. Findings are intended to inform decisions on adding performance-based approaches to ventilation rate (VR) standards for commercial buildings. Using multi-zone mass-balance models and available contaminant source rates, we estimated concentrations of 34 COCs for multiple ventilation scenarios: VRmin (0.04 cfm/ft2 ), VRmax (0.24 cfm/ft2 ), and VRmid (0.14 cfm/ft2 ). We compared COC concentrations with available health, olfactory, and irritant thresholds. We estimated building energy consumption at different VRs using a previously developed EnergyPlus model. VRmax did control all contaminants adequately, but VRmin did not, and VRmid did so only marginally. Air cleaning and local ventilation near strong sources both showed promise. Higher VRs increased indoor concentrations of outdoor air pollutants. Lowering VRs in big box stores in California from VRmax to VRmid would reduce total energy use by an estimated 6.6% and energy costs by 2.5%. Reducing the required VRs in California’s big box stores could reduce energy use and costs, but poses challenges for health and comfort of occupants. Source removal, air cleaning, and local ventilation may be needed at reduced VRs, and even at current recommended VRs. Also, alternative ventilation strategies taking climate and season into account in ventilation schedules may provide greater energy cost savings than constant ventilation rates, while improving IAQ.

  19. Indoor environment program. 1994 annual report

    SciTech Connect

    Daisey, J.M.

    1995-04-01

    Buildings use approximately one-third of the energy consumed in the United States. The potential energy savings derived from reduced infiltration and ventilation in buildings are substantial, since energy use associated with conditioning and distributing ventilation air is about 5.5 EJ per year. However, since ventilation is the dominant mechanism for removing pollutants from indoor sources, reduction of ventilation can have adverse effects on indoor air quality, and on the health, comfort, and productivity of building occupants. The Indoor Environment Program in LBL`s Energy and Environment Division was established in 1977 to conduct integrated research on ventilation, indoor air quality, and energy use and efficiency in buildings for the purpose of reducing energy liabilities associated with airflows into, within, and out of buildings while maintaining or improving occupant health and comfort. The Program is part of LBL`s Center for Building Science. Research is conducted on building energy use and efficiency, ventilation and infiltration, and thermal distribution systems; on the nature, sources, transport, transformation, and deposition of indoor air pollutants; and on exposure and health risks associated with indoor air pollutants. Pollutants of particular interest include radon; volatile, semivolatile, and particulate organic compounds; and combustion emissions, including environmental tobacco smoke, CO, and NO{sub x}.

  20. Indoor environment program - 1995 annual report

    SciTech Connect

    Daisey, J.M.

    1996-06-01

    Buildings use approximately one-third of the energy consumed in the United States. The potential energy savings derived from reduced infiltration and ventilation in buildings are substantial, since energy use associated with conditioning and distributing ventilation air is about 5.5 EJ per year. However, since ventilation is the dominant mechanism for removing pollutants from indoor sources, reduction of ventilation can have adverse effects on indoor air quality, and on the health, comfort, and productivity of building occupants. The Indoor Environment Program in LBL`s Energy and Environment Division was established in 1977 to conduct integrated research on ventilation, indoor air quality, and energy use and efficiency in buildings for the purpose of reducing energy liabilities associated with airflows into, within, and out of buildings while maintaining or improving occupant health and comfort. The Program is part of LBL`s Center for Building Science. Research is conducted on building energy use and efficiency, ventilation and infiltration, and thermal distribution systems; on the nature, sources, transport, transformation, and deposition of indoor air pollutants; and on exposure and health risks associated with indoor air pollutants. Pollutants of particular interest include radon; volatile, semivolatile, and particulate organic compounds; and combustion emissions, including environmental tobacco smoke, CO, and NO{sub x}.

  1. CNS welcomes home 20th HonorAir Knoxville flight | Y-12 National...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    April 13, 2016, was another memorable day for HonorAir Knoxville as 125 war veterans ... McGhee Tyson Airport to greet the veterans who served in World War II, Korea and Vietnam. ...

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

    SciTech Connect

    Not Available

    2014-12-01

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

  3. Taking the Challenge at Singer Village. A Cold Climate Zero Energy Ready Home

    SciTech Connect

    Puttagunta, S.; Faakye, O.

    2014-10-01

    After progressively incorporating ENERGY STAR® for Homes Versions 1, 2, and 3 into its standard practices over the years, this builder, Brookside Development, was seeking to build an even more sustainable product that would further increase energy efficiency, while also addressing indoor air quality, water conservation, renewable-ready, and resiliency. These objectives align with the framework of the DOE Challenge Home program, which "builds upon the comprehensive building science requirements of ENERGY STAR for Homes Version 3, along with proven Building America innovations and best practices. Other special attribute programs are incorporated to help builders reach unparalleled levels of performance with homes designed to last hundreds of years." Consortium for Advanced Residential Buildings (CARB) partnered with Brookside Development on the design optimization and construction of the first home in a small development of seven planned new homes being built on the old Singer Estate in Derby, CT.

  4. Taking the Challenge at Singer Village--A Cold Climate Zero Energy Ready Home

    SciTech Connect

    Puttagunta, S.; Gaakye, O.

    2014-10-01

    After progressively incorporating ENERGY STAR(R) for Homes Versions 1, 2, and 3 into its standard practices over the years, this builder, Brookside Development, was seeking to build an even more sustainable product that would further increase energy efficiency, while also addressing indoor air quality, water conservation, renewable-ready, and resiliency. These objectives align with the framework of the DOE Challenge Home program, which 'builds upon the comprehensive building science requirements of ENERGY STAR for Homes Version 3, along with proven Building America innovations and best practices. Other special attribute programs are incorporated to help builders reach unparalleled levels of performance with homes designed to last hundreds of years.' CARB partnered with Brookside Development on the design optimization and construction of the first home in a small development of seven planned new homes being built on the old Singer Estate in Derby, CT.

  5. Comfort in High-Performance Homes in a Hot-Humid Climate

    SciTech Connect

    Poerschke, A.; Beach, R.

    2016-01-01

    IBACOS monitored 37 homes during the late summer and early fall of 2014 in a hot and humid climate to better understand indoor comfort conditions. These homes were constructed in the last several years by four home builders that offered a comfort and performance guarantee for the homes. The homes were located in one of four cities: Tampa, Florida; Orlando, Florida; Houston, Texas; and San Antonio, Texas. Temperature and humidity data were collected from the thermostat and each room of the house using small, battery-powered data loggers. To understand system runtime and its impact on comfort, supply air temperature also was measured on a 1-minute interval. Overall, the group of homes only exceeded a room-to-room temperature difference of 6 degrees Fahrenheit for 5% of the time.

  6. Technology Solutions Case Study: Air-To-Water Heat Pumps with Radiant Delivery in Low Load Homes, Tucson, Arizona and Chico, California

    SciTech Connect

    2013-11-01

    Space conditioning represents nearly 50% of average residential household energy consumption, highlighting the need to identify alternative cost-effective, energy-efficient cooling and heating strategies. As homes are better built, there is an increasing need for strategies that are particularly well suited for high performance, low load homes. ARBI researchers worked with two test homes in hot-dry climates to evaluate the in-situ performance of air-to-water heat pump (AWHP) systems, an energy efficient space conditioning solution designed to cost-effectively provide comfort in homes with efficient, safe, and durable operation. Both systems were fully instrumented and have been monitored over one year to capture complete performance data over the cooling and heating seasons. Results are used to quantify energy savings, cost-effectiveness, and system performance using different operating modes and strategies. This strategy is most effective in tight, insulated homes with high levels of thermal mass (i.e. exposed slab floors).

  7. Measure Guideline: Selecting Ventilation Systems for Existing Homes

    SciTech Connect

    Aldrich, R.

    2014-02-01

    This report, developed by Building America research team CARB, addresses adding or improving mechanical ventilation systems to existing homes. The goal of this report is to assist decision makers and contractors in making informed decisions when selecting ventilation systems for homes. With more air-sealed envelopes, a mechanical means of removing contaminants is critical for indoor environmental quality and building durability. The purpose of ventilation is to remove contaminants from homes, and this report discusses where, when, and how much ventilation is appropriate in a home, including examination of relevant codes and standards. Choosing the "best" system is not always straightforward; selecting a system involves balancing performance, efficiency, cost, required maintenance, and several other factors.

  8. Providing better indoor environmental quality brings economicbenefits

    SciTech Connect

    Fisk, William; Seppanen, Olli

    2007-06-01

    This paper summarizes the current scientific evidence that improved indoor environmental quality can improve work performance and health. The review indicates that work and school work performance is affected by indoor temperature and ventilation rate. Pollutant source removal can sometimes improve work performance. Based on formal statistical analyses of existing research results, quantitative relationships are provided for the linkages of work performance with indoor temperature and outdoor air ventilation rate. The review also indicates that improved health and related financial savings are obtainable from reduced indoor tobacco smoking, prevention and remediation of building dampness, and increased ventilation. Example cost-benefit analyses indicate that many measures to improve indoor temperature control and increase ventilation rates will be highly cost effective, with benefit-cost ratios as high as 80 and annual economic benefits as high as $700 per person.

  9. Investigation of key parameters influencing the efficient photocatalytic oxidation of indoor volatile organic compounds (VOCs)

    SciTech Connect

    Quici, Natalia; Kibanova, Daria; Vera, Maria Laura; Choi, Hyeok; Dionysiou, Dionysios D.; Litter, Marta I.; Cervini-Silva, Javiera; Hodgson, Alfred T.; Destaillats, Hugo; Destaillats, Hugo

    2008-06-01

    Photocatalytic oxidation of indoor VOCs has the potential to eliminate pollutants from indoor environments, thus effectively improving and/or maintaining indoor air quality while reducing ventilation energy costs. Design and operation of UV photocatalytic oxidation (UVPCO) air cleaners requires optimization of various parameters to achieve highest pollutant removal efficiencies while avoiding the formation of harmful secondary byproducts and maximizing catalyst lifetime.

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

    SciTech Connect

    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.

  11. Heat Pump Water Heaters and American Homes: A Good Fit?

    SciTech Connect

    Franco, Victor; Lekov, Alex; Meyers, Steve; Letschert, Virginie

    2010-05-14

    Heat pump water heaters (HPWHs) are over twice as energy-efficient as conventional electric resistance water heaters, with the potential to save substantial amounts of electricity. Drawing on analysis conducted for the U.S. Department of Energy's recently-concluded rulemaking on amended standards for water heaters, this paper evaluates key issues that will determine how well, and to what extent, this technology will fit in American homes. The key issues include: 1) equipment cost of HPWHs; 2) cooling of the indoor environment by HPWHs; 3) size and air flow requirements of HPWHs; 4) performance of HPWH under different climate conditions and varying hot water use patterns; and 5) operating cost savings under different electricity prices and hot water use. The paper presents the results of a life-cycle cost analysis of the adoption of HPWHs in a representative sample of American homes, as well as national impact analysis for different market share scenarios. Assuming equipment costs that would result from high production volume, the results show that HPWHs can be cost effective in all regions for most single family homes, especially when the water heater is not installed in a conditioned space. HPWHs are not cost effective for most manufactured home and multi-family installations, due to lower average hot water use and the water heater in the majority of cases being installed in conditioned space, where cooling of the indoor environment and size and air flow requirements of HPWHs increase installation costs.

  12. Recommended Ventilation Strategies for Energy-Efficient Production Homes

    SciTech Connect

    Roberson, J.; Brown, R.; Koomey, J.; Warner, J.; Greenberg, S.

    1998-12-01

    This report evaluates residential ventilation systems for the U.S. Environmental Protection Agency's (EPA's) ENERGY STAR{reg_sign} Homes program and recommends mechanical ventilation strategies for new, low-infiltration, energy-efficient, single-family, ENERGY STAR production (site-built tract) homes in four climates: cold, mixed (cold and hot), hot humid, and hot arid. Our group in the Energy Analysis Department at Lawrence Berkeley National Lab compared residential ventilation strategies in four climates according to three criteria: total annualized costs (the sum of annualized capital cost and annual operating cost), predominant indoor pressure induced by the ventilation system, and distribution of ventilation air within the home. The mechanical ventilation systems modeled deliver 0.35 air changes per hour continuously, regardless of actual infiltration or occupant window-opening behavior. Based on the assumptions and analysis described in this report, we recommend independently ducted multi-port supply ventilation in all climates except cold because this strategy provides the safety and health benefits of positive indoor pressure as well as the ability to dehumidify and filter ventilation air. In cold climates, we recommend that multi-port supply ventilation be balanced by a single-port exhaust ventilation fan, and that builders offer balanced heat-recovery ventilation to buyers as an optional upgrade. For builders who continue to install forced-air integrated supply ventilation, we recommend ensuring ducts are airtight or in conditioned space, installing a control that automatically operates the forced-air fan 15-20 minutes during each hour that the fan does not operate for heating or cooling, and offering ICM forced-air fans to home buyers as an upgrade.

  13. Measure Guideline: Guide to Attic Air Sealing

    SciTech Connect

    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.

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

    SciTech Connect

    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.

  15. Home Energy Score Sample Report

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ADDRESS HOME SIZE YEAR BUILT AIR CONDITIONING Home Energy Score Score Home Facts Recommendations The Home Energy Score is a national rating system developed by the U.S. Department of Energy. The Score reflects the energy efficiency of a home based on the home's structure and heating, cooling, and hot water systems. The Home Facts provide details about the current structure and systems. Recommendations show how to improve the energy efficiency of the home to achieve a higher score and save money.

  16. Building America Whole-House Solutions for New Homes: Nexus EnergyHomes -

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Frederick, Maryland | Department of Energy Building America Whole-House Solutions for New Homes: Nexus EnergyHomes - Frederick, Maryland Building America Whole-House Solutions for New Homes: Nexus EnergyHomes - Frederick, Maryland This new duplex home successfully combines affordability with state-of-the-art efficiency and indoor environmental quality, achieving the highest rating possible under the National Green Building Standard Nexus EnergyHomes - Frederick, Maryland (641.48 KB) More

  17. Indoor unit for electric heat pump

    DOEpatents

    Draper, Robert; Lackey, Robert S.; Fagan, Jr., Thomas J.; Veyo, Stephen E.; Humphrey, Joseph R.

    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.

  18. Home Energy Score Program

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... seeks to evaluate a home's fixed characteristics, while holding occupant-determined ... algorithms & data: Sherman Air-leakage database, FSEC, RECS, Building America, NREL, ...

  19. New Whole-House Solutions Case Study: Winchester Homes and Camberly Homes

    SciTech Connect

    2014-02-01

    The Partnership for Home Innovation team worked with the builder to develop a new set of high performance home designs—including advanced wall and HVAC systems—that could be applicable on a production scale. The new home designs are to be constructed in the mixed humid climate zone and could eventually apply to all of the builder's home designs to meet or exceed future energy codes or performance-based programs. However, the builder recognized that the combination of new wall framing designs and materials, higher levels of insulation in the wall cavity, and more detailed air sealing to achieve lower infiltration rates changes the moisture characteristics of the wall system. In order to ensure long term durability and repeatable successful implementation with few call-backs, this report demonstrates through measured data that the wall system functions as a dynamic system, responding to changing interior and outdoor environmental conditions within recognized limits of the materials that make up the wall system. A similar investigation was made with respect to the complete redesign of the heating, cooling, air distribution, and ventilation systems intended to optimize the equipment size and configuration to significantly improve efficiency while maintaining indoor comfort. Recognizing the need to demonstrate the benefits of these efficiency features, the builder offered a new house model to serve as a test case to develop framing designs, evaluate material selections and installation requirements, changes to work scopes and contractor learning curves, as well as to compare theoretical performance characteristics with measured results.

  20. The PNNL Lab Homes Experimental Plan, FY12-FY15

    SciTech Connect

    Widder, Sarah H; Parker, Graham B; Baechler, Michael C

    2012-05-01

    The PNNL lab homes (http://labhomes.pnnl.gov/ ) are two manufactured homes recently installed immediately south of the 6th Street Warehouse on the PNNL Richland, WA campus that will serve as a project test bed for DOE, PNNL and its research partners who aim to achieve highly energy efficient and grid-responsive homes. The PNNL Lab Homes project is the first of its kind in the Pacific Northwest region. The Energy & Environment Directorate at PNNL, working with multiple sponsors, will use the identical 1,500 square-foot homes for experiments focused on reducing energy use and peak demand. Research and demonstration primarily will focus on retrofit technologies, and the homes will offer a unique, side-by-side ability to test and compare new ideas and approaches that are applicable to site-built as well as manufactured homes. The test plan has the following objectives: • To define a retrofit solution packages for moderate to cold climates that can be cost effectively deployed in the Pacific NW to save 50% of the energy needs of a typical home while enhancing the comfort and indoor air quality. The retrofit strategies would also lower the peak demands on the grid. • To leverage the unique opportunity in the lab homes to reach out to researchers, industry, and other interested parties in the building science community to collaborate on new smart and efficient solutions for residential retrofits. • To increase PNNL’s visibility in the area of buildings energy efficiency based on the communication strategy and presentation of the unique and impactful data generated in the lab homes. This document describes the proposed test plan for the lab homes to achieve these goals, through FY15. The subsequent sections will provide a brief description of each proposed experiment, summarize the timing of the experiment (including any experiments that may be run in parallel, and propose potential contributors and collaborators. For those experiments with funding information

  1. Business Solutions Case Study: Marketing Zero Energy Homes: LifeStyle Homes, Melbourne, Florida

    SciTech Connect

    2015-06-01

    Building America research has shown that high-performance homes can potentially give builders an edge in the marketplace and can boost sales. But it doesn't happen automatically. It requires a tailored, easy to understand marketing campaign and sometimes a little flair. This case study highlights LifeStyle Homes’ successful marketing approach for their SunSmart home package, which has helped to boost sales for the company. SunSmart marketing includes a modified logo, weekly blog, social media, traditional advertising, website, and sales staff training. Marketing focuses on quality, durability, healthy indoor air, and energy efficiency with an emphasis on the surety of third-party verification and the scientific approach to developing the SunSmart package. With the introduction of SunSmart, LifeStyle began an early recovery, nearly doubling sales in 2010; SunSmart sales now exceed 300 homes, including more than 20 zero energy homes. Completed homes in 2014 far outpaced the national (19%) and southern census region (27%) recovery rates for the same period. As technology improves and evolves, this builder will continue to collaborate with Building America.

  2. New Whole-House Solutions Case Study: Singer Village - A Cold Climate Zero Energy Ready Home, Derby, Connecticut

    SciTech Connect

    2015-03-01

    After progressively incorporating ENERGY STAR for Homes Versions 1, 2, and 3 into its standard practices over the years, builder Brookside Development was seeking to build an even more sustainable product that would further increase energy efficiency, while also addressing indoor air quality, water conservation, renewable-ready, and resiliency. These objectives align with the framework of the U.S. Department of Energy Zero Energy Ready Home program, which builds upon the comprehensive building science requirements of ENERGY STAR for Homes Version 3 and proven Building America innovations and best practices. To meet this goal, Consortium for Advanced Residential Buildings partnered with Brookside Development to design and construct the first zero energy ready home in a development of seven new homes on the old Singer Estate in Derby, Connecticut.

  3. Indoor Temperature and Humidity Data Collection and Analysis

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Indoor Temperature and Humidity Data Collection and Analysis Chuck Booten, NREL Paul Norton, NERD Cheryn Metzger, NREL Why do we care about indoor Temp/RH? "Anecdotal evidence from the field and controlled studies have raised concerns about the accuracy of software-based energy analysis for existing homes. ....

  4. NEXT GENERATION LUMINAIRES INDOOR JUDGING 2014 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    NEXT GENERATION LUMINAIRES INDOOR JUDGING 2014 NEXT GENERATION LUMINAIRES INDOOR JUDGING 2014 View this behind-the-scenes look at the 2014 NGL judging event where entries were evaluated by a panel of judges drawn from the architectural lighting community in an intensive three-step process that combined the judges' personal evaluations with objective measures of luminaire performance. View the text-alternative version Solid-State Lighting Home About the Solid-State Lighting Program Research &

  5. Building America Top Innovations 2014 Profile: ASHRAE Standard 62.2. Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings

    SciTech Connect

    none,

    2014-11-01

    This 2014 Top Innovations profile describes Building America research and support in developing and gaining adoption of ASHRAE 62.2, a residential ventilation standard that is critical to transforming the U.S. housing industry to high-performance homes.

  6. Nexus EnergyHomes, Frederick, Maryland (Fact Sheet)

    SciTech Connect

    Not Available

    2014-02-01

    With this new home - which achieved the highest rating possible under the National Green Building Standard - Nexus EnergyHomes demonstrated that green and affordable can go hand in hand. The mixed-humid climate builder, along with the U.S. Department of Energy Building America team Partnership for Home Innovation, embraced the challenge to create a new duplex home in downtown Frederick, Maryland, that successfully combines affordability with state-of-the-art efficiency and indoor environmental quality. To limit costs, the builder designed a simple rectangular shape and kept interesting architectural features such as porches outside the building's structure. This strategy avoided the common pitfall of creating potential air leakage where architectural features are connected to the structure before the building is sealed against air infiltration. To speed construction and limit costs, the company chose factory-assembled components such as structural insulated panel walls and floor and roof trusses. Factory-built elements were key in achieving continuous insulation around the entire structure. Open-cell spray foam at the rim joist and attic roofline completed the insulation package, and kept the heating, ventilating, and air-conditioning system in conditioned space.

  7. Building America Whole-House Solutions for New Homes: Nexus EnergyHomes- Frederick, Maryland

    Energy.gov [DOE]

    This new duplex home successfully combines affordability with state-of-the-art efficiency and indoor environmental quality, achieving the highest rating possible under the National Green Building Standard

  8. Guide to Home Ventilation

    SciTech Connect

    2010-10-01

    A fact sheet from the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy: Ventilation refers to the exchange of indoor and outdoor air. Without proper ventilation, an otherwise insulated and airtight house will seal in harmful pollutants, such as carbon monoxide, and moisture that can damage a house.

  9. DOE Zero Energy Ready Home Webinar: Comprehensive Building Science...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    three key systems that improve comfort, indoor air quality, and durability - a complete thermal enclosure system, a complete HVAC system, and a complete water management system. ...

  10. Ventilation Control of Volatile Organic Compounds in New U.S. Homes: Results of a Controlled Field Study in Nine Residential Units

    SciTech Connect

    Willem, Henry; Hult, Erin L.; Hotchi, Toshifumi; Russell, Marion L.; Maddalena, Randy L.; Singer, Brett C.

    2013-01-01

    In order to optimize strategies to remove airborne contaminants in residences, it is necessary to determine how contaminant concentrations respond to changes in the air exchange rate. The impact of air exchange rate on the indoor concentrations of 39 target volatile organic compounds (VOCs) was assessed by measuring air exchange rates and VOC concentrations at three ventilation settings in nine residences. Active sampling methods were used for VOC concentration measurements, and passive perfluorocarbon tracer gas emitters with active sampling were used to determine the overall air exchange rate corresponding to the VOC measurements at each ventilation setting. The concentration levels and emission rates of the target VOCs varied by as much as two orders of magnitude across sites. Aldehyde and terpene compounds were typically the chemical classes with highest concentrations, followed by alkanes, aromatics, and siloxanes. For each home, VOC concentrations tended to decrease as the air exchange rate was increased, however, measurement uncertainty was significant. The indoor concentration was inversely proportional to air exchange rate for most compounds. For a subset of compounds including formaldehyde, however, the indoor concentration exhibited a non-linear dependence on the timescale for air exchange

  11. Measured Air Distribution Effectiveness for Residential Mechanical Ventilation Systems

    SciTech Connect

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

    2008-05-01

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

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

    SciTech Connect

    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. DOE Challenge Home Program

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    solar ready details where there is a strong solar resource. ... Zero energy ready homes sounded like such a huge leap for ... of air, will share the pros and cons of these ...

  14. Performance of a small underfed wood chip-fired stoker in a hot air-heated home

    SciTech Connect

    Schneider, M.H.

    1983-01-01

    The goal of the study was to provide space heat for a home using forest biomass presently not in demand by industry, and by using a convenient, automatic, low-emission heating system. A stoker firing wood chips was installed in a home, and chips were prepared for it from the residues of a softwood clearcut. Residues from 1 and a quarter acre provided enough fuel to heat the house for the heating season. The chip-fired heating system was convenient, maintained the house at whatever temperature was set on the room thermostat, and generated little creosote or wood smoke. It was better at converting fuel to heat than the previous combustion heating systems in the house, with steady-state combustion efficiency of approximately 75% and longer-term appliance efficiency of 69%. Electric energy required for heating hot water was reduced approximately 27% as a result of a preheating coil located in the chip-fired furnace. The major cause of heat interruptions was jamming of the stoker which occurred on the average of every 18 and a half days. Clearing such jams was simple. The system operated safely throughout the test period.

  15. DOE Tour of Zero: The Charlottesville Infill by Promethean Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    5 of 13 Low-no-VOC certified paints and finishes are used for a healthier indoor environment. 6 of 13 This home uses an ultra-efficient heat pump system (21 SEER, 12.2...

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

    SciTech Connect

    Roberts, S.; Stephenson, R.

    2012-09-01

    This guide provides renovators and retrofit contractors an overview of considerations when including wall air sealing and insulation in an energy retrofit project. It also outlines the potential project risks, various materials for insulating, possible field inspections needed, installation procedures, as well as the benefits and drawbacks.

  17. HomeCooling101

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Saver 101: Everything You Need to Know About 6% $29B The percentage of the average household's energy use that goes to space cooling. 2/3 of all U.S. homes have air conditioners. #DidYouKnow: The amount it costs homeowners every year to power their air conditioners. You can reduce air conditioning energy use by 20-50 percent by switching to high-efficiency air conditioners and taking other actions to lower your home cooling costs. 20-50% Ventilation Ventilation is the least expensive and most

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

    SciTech Connect

    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.

  19. Building America Whole-House Solutions for Existing Homes: Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet)

    Energy.gov [DOE]

    In this project, IBACOS, a U.S. Department of Energy Building America team, assessed a strategy for providing conditioned air to bedrooms when the bedroom doors are closed and measured potential thermal discomfort that occupants may experience when this strategy is used. Builders can use this information to discuss space conditioning options for low-load houses with their clients to determine acceptable comfort levels for occupants in these cost-optimized, energy-efficient houses.

  20. National Weatherization Assistance Program Impact Evaluation: Impact of Exhaust-Only Ventilation on Radon and Indoor Humidity - A Field Investigation

    SciTech Connect

    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).

  1. Using Field-Metered Data to Quantify Annual Energy Use of Portable Air Conditioners

    SciTech Connect

    Burke, Thomas; Willem, Henry; Ni, Chun Chun; Stratton, Hannah; Chen, Yuting; Ganeshalingam, Mohan; Iyer, Maithili; Price, Sarah; Dunham, Camilla

    2014-12-01

    As many regions of the United States experience rising temperatures, consumers have come to rely increasingly on cooling appliances (including portable air conditioners) to provide a comfortable indoor temperature. Home occupants sometimes use a portable air conditioner (PAC) to maintain a desired indoor temperature in a single room or enclosed space. Although PACs in residential use are few compared to centrally installed and room air conditioning (AC) units, the past few years have witnessed an increase of PACs use throughout the United States. There is, however, little information and few research projects focused on the energy consumption and performance of PACs, particularly studies that collect information from field applications of PACs. The operation and energy consumption of PACs may differ among geographic locations and households, because of variations in cooling load, frequency, duration of use, and other user-selected settings. In addition, the performance of building envelope (thermal mass and air leakage) as well as inter-zonal mixing within the building would substantially influence the ability to control and maintain desirable indoor thermal conditions. Lawrence Berkeley National Laboratory (LBNL) conducted an initial field-metering study aimed at increasing the knowledge and data related to PAC operation and energy consumption in the United States.

  2. DOE Zero Energy Ready Home Case Study: KB Home, San Marcos, CA, Production Home

    Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in San Marcos, CA that scored HERS 52 without PV, -4 with PV. This 52,778-square-foot production home has R-20 advanced framed walls with batts plus rigid foam sheathing, an air-source heat pump for central air in sealed attic, solar water heating and 100% LED lighting.

  3. DOE Zero Energy Ready Home

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Zero Energy Ready Home Savings & Cost Estimate Summary October 2015 www.buildings.energy.gov/zero DOE Zero Energy Ready Home Savings & Cost Estimate Summary October 2015 October 2015 Page 2 of 14 INTRODUCTION In considering the business strategy for constructing and selling Zero Energy Ready Homes through the DOE Zero Energy Ready Home program, builders and other program partners understandably want to know about the added costs. Upgrades in insulation, air sealing, mechanical equipment

  4. DOE Zero Energy Ready Home Case Study: Southern Energy Homes — First DOE Zero Energy Ready Manufactured Home, Russellville, AL

    SciTech Connect

    none,

    2014-09-01

    This home is the first manufactured home built to the DOE Zero Energy Ready Home standard and won an Affordable Builder award in the 2014 Housing Innovations Awards. This manufactured home achieved a HERS score of 57 without photovoltaics and includes superior insulation and air sealing.

  5. CAES Home

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    CAES Home Home About Us Contact Information Our CAES Building FAQs Affiliated Centers Research Core Capabilities Laboratories and Equipment Technology Transfer Visualization CAVE...

  6. CAES Home

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    View all events >> x CAES Home Home About Us Contact Information Our CAES Building FAQs Affiliated Centers Research Core Capabilities Laboratories and Equipment Technology Transfer...

  7. CAES Home

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    User ID: Password: Log In Forgot your password? CAES Home Home About Us Contact Information Our CAES Building FAQs Affiliated Centers Research Core Capabilities Laboratories and...

  8. The effects of indoor pollution on Arizona children

    SciTech Connect

    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.

  9. The Airborne Metagenome in an Indoor Urban Environment

    SciTech Connect

    Tringe, Susannah; Zhang, Tao; Liu, Xuguo; Yu, Yiting; Lee, Wah Heng; Yap, Jennifer; Yao, Fei; Suan, Sim Tiow; Ing, Seah Keng; Haynes, Matthew; Rohwer, Forest; Wei, Chia Lin; Tan, Patrick; Bristow, James; Rubin, Edward M.; Ruan, Yijun

    2008-02-12

    The indoor atmosphere is an ecological unit that impacts on public health. To investigate the composition of organisms in this space, we applied culture-independent approaches to microbes harvested from the air of two densely populated urban buildings, from which we analyzed 80 megabases genomic DNA sequence and 6000 16S rDNA clones. The air microbiota is primarily bacteria, including potential opportunistic pathogens commonly isolated from human-inhabited environments such as hospitals, but none of the data contain matches to virulent pathogens or bioterror agents. Comparison of air samples with each other and nearby environments suggested that the indoor air microbes are not random transients from surrounding outdoor environments, but rather originate from indoor niches. Sequence annotation by gene function revealed specific adaptive capabilities enriched in the air environment, including genes potentially involved in resistance to desiccation and oxidative damage. This baseline index of air microbiota will be valuable for improving designs of surveillance for natural or man-made release of virulent pathogens.

  10. Factors affecting the indoor concentrations of carbonaceous aerosols of outdoor origin

    SciTech Connect

    Lunden, Melissa M.; Kirchstetter, Thomas W.; Thatcher, Tracy L.; Hering, Susanne V.; Brown, Nancy J.

    2007-06-25

    A field study was conducted in an unoccupied single story residence in Clovis, California to provide data to address issues important to assess the indoor exposure to particles of outdoor origin. Measurements of black and organic carbonaceous aerosols were performed using a variety of methods, resulting in both near real-time measurements as well as integrated filter based measurements. Comparisons of the different measurement methods show that it is crucial to account for gas phase adsorption artifacts when measuring organic carbon (OC). Measured concentrations affected by the emissions of organic compounds sorbed to indoor surfaces imply a higher degree of infiltration of outdoor organic carbon aerosols into the indoor environment for our unoccupied house. Analysis of the indoor and outdoor data for black carbon (BC) aerosols show that, on average, the indoor concentration of black carbon aerosols behaves in a similar manner to sulfate aerosols. In contrast, organic carbon aerosols are subject to chemical transformations indoors that, for our unoccupied home, resulted in lower indoor OC concentrations than would be expected by physical loss mechanisms alone. These results show that gas to particle partitioning of organic compounds, as well as gas to surface interactions within the residence, are an important process governing the indoor concentration to OC aerosols of outdoor origin.

  11. New Whole-House Solutions Case Study: Nexus EnergyHomes, Frederick, Maryland

    SciTech Connect

    2014-02-01

    With this new home—which achieved the highest rating possible under the National Green Building Standard—Nexus EnergyHomes demonstrated that green and affordable can go hand in hand. The mixed-humid climate builder, along with the U.S. Department of Energy Building America team Partnership for Home Innovation, embraced the challenge to create a new duplex home in downtown Frederick, Maryland, that successfully combines affordability with state-of-the-art efficiency and indoor environmental quality. To limit costs, the builder designed a simple rectangular shape and kept interesting architectural features such as porches outside the building’s structure. This strategy avoided the common pitfall of creating potential air leakage where architectural features are connected to the structure before the building is sealed against air infiltration. To speed construction and limit costs, the company chose factory-assembled components such as structural insulated panel walls and floor and roof trusses. Factory-built elements were key in achieving continuous insulation around the entire structure. Open-cell spray foam at the rim joist and attic roofline completed the insulation package, and kept the heating, ventilating, and air-conditioning system in conditioned space.

  12. 2013 R&D 100 Award: DNATrax could revolutionize air quality detection and tracking

    ScienceCinema

    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.

  13. 2013 R&D 100 Award: DNATrax could revolutionize air quality detection and tracking

    SciTech Connect

    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.

  14. Enhance Your Home Inspection Business with Home Energy Score Webinar (Text

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Version) | Department of Energy Enhance Your Home Inspection Business with Home Energy Score Webinar (Text Version) Enhance Your Home Inspection Business with Home Energy Score Webinar (Text Version) Here is the text version of the webinar Enhance Your Home Inspection Business with Home Energy Score, presented in March 2016. Watch the presentation. Joan Glickman: First slide: ... the air conditioner, it's hard for someone to know that just by looking at a unit, whether it's efficient or not

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

    SciTech Connect

    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.

  16. Measure Guideline: Guide to Attic Air Sealing

    SciTech Connect

    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.

  17. Health and Safety Guide for Home Performance Contractors

    SciTech Connect

    Stratton, Chris; Walker, Iain S.

    2012-02-15

    This report is intended to provide home performance contractor trainers with a resource to keep both their workers and home residents safe and healthy. This document is an attempt to describe what we currently believe is safe, what we believe is unsafe, and what we’re unsure about. It is intended to identify health and safety issues and provide historical context and current understanding of both risks and mitigation strategies. In addition, it provides links to more in-depth resources for each issue. When we tighten the thermal envelope of a house to improve comfort and reduce energy use, we have to be sure that we are not compromising the indoor air quality of the home. This means identifying and mitigating or eliminating pollution sources before and after you make changes to the home. These sources can include materials and finishes in the home, exhaust gasses from combustion appliances, soil gasses such as radon, and moisture from a bathroom, kitchen, or unvented clothes dryer. Our first responsibility is to do no harm — this applies both to our clients and to our employees. Currently, there are many new products that are widely used but whose health effects are not well understood. Our in ability to have perfect information means the directive to do no harm can be difficult to obey. Each home is a little bit different, and in the face of a situation you’ve never encountered, it’s important to have a solid grasp of the fundamental concepts of building science when the hard and fast rules don’t apply . The home performance industry is gaining momentum, and has the potential to expand greatly as energy costs continue to rise. It is imperative that we remain vigilant about protecting the health and safety of our workers and our customers. It only takes a few news stories about a family that got sick after their home was tightened by a home performance contractor to scare off potential customers and taint the reputation of the entire industry. Good

  18. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cost Analysis of Roof-Only Air Sealing and Insulation Strategies on 1-12 Story Homes in ... of Roof-Only Air Sealing and Insulation Strategies on 1-12 Story Homes in Cold Climates, ...

  19. Building America Whole-House Solutions for New Homes: Evluating...

    Energy Saver

    Building America Whole-House Solutions for Existing Homes: Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet) Traditional air distribution system. Graphic courtesy ...

  20. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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

  1. Building America Whole-House Solutions for Existing Homes: Passive...

    Energy Saver

    Air Transfer, Fresno, California (Fact Sheet) Building America Whole-House Solutions for Existing Homes: Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet) In this ...

  2. Respiratory health effects of the indoor environment in a population of Dutch children

    SciTech Connect

    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.

  3. Cost Analysis of Roof-Only Air Sealing and Insulation Strategies on 1 1/2-Story Homes in Cold Climates

    SciTech Connect

    Ojczyk, C.

    2014-12-01

    The External Thermal and Moisture Management System (ETMMS), typically seen in deep energy retrofits, is a valuable approach for the roof-only portions of existing homes, particularly the 1 1/2-story home. It is effective in reducing energy loss through the building envelope, improving building durability, reducing ice dams, and providing opportunities to improve occupant comfort and health.

  4. Cost Analysis of Roof-Only Air Sealing and Insulation Strategies on 1 1/2-Story Homes in Cold Climates

    SciTech Connect

    Ojczyk, C.

    2014-12-01

    The External Thermal and Moisture Management System (ETMMS), typically seen in deep energy retrofits, is a valuable approach for the roof-only portions of existing homes, particularly the 1 ½-story home. It is effective in reducing energy loss through the building envelope, improving building durability, reducing ice dams, and providing opportunities to improve occupant comfort and health.

  5. Home refinishing, lead paint, and infant blood lead levels

    SciTech Connect

    Rabinowitz, M.; Leviton, A.; Bellinger, D.

    1985-04-01

    The blood lead levels of 249 infants were measured semi-annually from birth to two years of age; the home paint was sampled and any recent home refinishing activity recorded. Mean blood lead from birth to age 2 years did not vary systematically with age but did correlate significantly with the amount of lead in the indoor paint. Refinishing activity in homes with high lead paint was associated with elevations of blood lead averaging 69 per cent.

  6. Transitioning to High Performance Homes: Successes and Lessons Learned From Seven Builders

    SciTech Connect

    Widder, Sarah H.; Kora, Angela R.; Baechler, Michael C.; Fonorow, Ken; Jenkins, David W.; Stroer, Dennis

    2013-03-01

    As homebuyers are becoming increasingly concerned about rising energy costs and the impact of fossil fuels as a major source of greenhouse gases, the returning new home market is beginning to demand energy-efficient and comfortable high-performance homes. In response to this, some innovative builders are gaining market share because they are able to market their homes’ comfort, better indoor air quality, and aesthetics, in addition to energy efficiency. The success and marketability of these high-performance homes is creating a builder demand for house plans and information about how to design, build, and sell their own low-energy homes. To help make these and other builders more successful in the transition to high-performance construction techniques, Pacific Northwest National Laboratory (PNNL) partnered with seven interested builders in the hot humid and mixed humid climates to provide technical and design assistance through two building science firms, Florida Home Energy and Resources Organization (FL HERO) and Calcs-Plus, and a designer that offers a line of stock plans designed specifically for energy efficiency, called Energy Smart Home Plans (ESHP). This report summarizes the findings of research on cost-effective high-performance whole-house solutions, focusing on real-world implementation and challenges and identifying effective solutions. The ensuing sections provide project background, profile each of the builders who participated in the program, and describe their houses’ construction characteristics, key challenges the builders encountered during the construction and transaction process); and present primary lessons learned to be applied to future projects. As a result of this technical assistance, 17 homes have been built featuring climate-appropriate efficient envelopes, ducts in conditioned space, and correctly sized and controlled heating, ventilation, and air-conditioning systems. In addition, most builders intend to integrate high

  7. Combi Systems for Low Load homes

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Context Technical Approach * A condensing water heater and hydronic air handler will used to provide space and water heating loads in almost 300 weatherized homes. * System ...

  8. Home Heating Systems | Department of Energy

    Office of Environmental Management (EM)

    separately, many homes use the following approaches: Active Solar Heating Uses the sun to heat either air or liquid and can serve as a supplemental heat source. Electric...

  9. DOE Zero Energy Ready Home

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... the home's thermal and air barrier boundary 16 4. Water Efficiency Hot water delivery ... Zones 4 Marine 5,6,7,8) AFUE 80% 90% 94% SEER 18 15 13 HSPF 8.2 9 10 23 Geothermal Heat ...

  10. ZERO ENERGY READY HOME UPDATE NEWSLETTER AUGUST 2014 | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    August 2014 Newsletter.pdf (38.13 KB) More Documents & Publications DOE ZERH Webinar: Ventilation and Filtration Strategies with Indoor airPLUS DOE ZERH Orientation Webinar: Better ...

  11. DOE Zero Energy Ready Home Case Study: Caldwell and Johnson,...

    Energy Saver

    on the underside of the roof; a minisplit heat pump with 4 indoor air handlers; a heat pump water heater; and triple-pane windows. PDF icon DOEZEHCaldwellJohnsonAfford09-20...

  12. DOE Zero Energy Ready Home Case Study: Caldwell and Johnson,...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    under the slab, and R-15 open-cell spray foam on the underside of the roof; a minisplit heat pump with 4 indoor air handlers; a heat pump water heater; and triple-pane windows. ...

  13. DOE Zero Energy Ready Home: Better Business for Builders Webinar...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... appropriateness and the pros and cons of each of these. ... But ENERGY STAR -- excuse me, what Indoor airPLUS does is ... required in these high-solar regions, and they're ...

  14. Pilot Residential Deep Energy Retrofits and the PNNL Lab Homes

    SciTech Connect

    Widder, Sarah H.; Chandra, Subrato; Parker, Graham B.; Sande, Susan; Blanchard, Jeremy; Stroer, Dennis; McIlvaine, Janet; Chasar, David; Beal, David; Sutherland, Karen

    2012-01-01

    This report summarizes research investigating the technical and economic feasibility of several pilot deep energy retrofits, or retrofits that save 30% to 50% or more on a whole-house basis while increasing comfort, durability, combustion safety, and indoor air quality. The work is being conducted for the U.S. Department of Energy Building Technologies Program as part of the Building America Program. As part of the overall program, Pacific Northwest National Laboratory (PNNL) researchers are collecting and analyzing a comprehensive dataset that describes pre- and post-retrofit energy consumption, retrofit measure cost, health and comfort impacts, and other pertinent information for each home participating in the study. The research and data collection protocol includes recruitment of candidate residences, a thorough test-in audit, home energy modeling, and generation of retrofit measure recommendations, implementation of the measures, test-out, and continued evaluation. On some homes, more detailed data will be collected to disaggregate energy-consumption information. This multi-year effort began in October 2010. To date, the PNNL team has performed test-in audits on 51 homes in the marine, cold, and hot-humid climate zones, and completed 3 retrofits in Texas, 10 in Florida, and 2 in the Pacific Northwest. Two of the retrofits are anticipated to save 50% or more in energy bills and the others - savings are in the 30% to 40% range. Fourteen other retrofits are under way in the three climate zones. Metering equipment has been installed in seven of these retrofits - three in Texas, three in Florida, and one in the Pacific Northwest. This report is an interim update, providing information on the research protocol and status of the PNNL deep energy retrofit project as of December, 2011. The report also presents key findings and lessons learned, based on the body of work to date. In addition, the report summarizes the status of the PNNL Lab Homes that are new

  15. indoor | OpenEI Community

    OpenEI (Open Energy Information) [EERE & EIA]

    Contributor 17 September, 2013 - 12:39 Are you willing to reply to a text message once a day with information about your comfort level at your indoor location? building...

  16. DOE Zero Ready Home Case Study: M Street Homes, Smartlux on Greenpark...

    Energy Saver

    ... The home also features 1.2 kW of photovoltaic panels on the south side of the home. The ... walls filled with 1.5 inches of closed-cell spray foam to air seal and insulate the ...

  17. DOE Zero Energy Ready Home Case Study: Clifton View Homes, Coupeville, WA, Systems Home

    Office of Energy Efficiency and Renewable Energy (EERE)

    Case-study of a DOE Zero Energy Ready Home on Whidbey Island, WA, that scored HERS 45 without PV. This 2,908-square-foot custom/system home has a SIP roof and walls, R-20 rigid foam under slab, triple-pane windows, ground source heat pump for radiant floor heat, and a unique balanced ventilation system using separate exhaust fans to bring air into and out of home.

  18. Building America Whole-House Solutions for New Homes: Schneider Homes, Burien, Washington

    Energy.gov [DOE]

    Case study of Schneider Homes who worked with Building America research partner WSU Extension Energy Office to design HERS 65 homes with high-efficiency furnaces in an air- sealed garage closet with ducts in conditioned space, 80% CFL lighting, ENERGY STAR appliances, air-tight drywall, and air sealing of attic hatches.

  19. Performance Verification of Production-Scalable Energy-Efficient Solutions: Winchester/Camberley Homes Mixed-Humid Climate

    SciTech Connect

    Mallay, D.; Wiehagen, J.

    2014-07-01

    Winchester/Camberley Homes with the Building America program and its NAHB Research Center Industry Partnership collaborated to develop a new set of high performance home designs that could be applicable on a production scale. The new home designs are to be constructed in the mixed humid climate zone four and could eventually apply to all of the builder's home designs to meet or exceed future energy codes or performance-based programs. However, the builder recognized that the combination of new wall framing designs and materials, higher levels of insulation in the wall cavity, and more detailed air sealing to achieve lower infiltration rates changes the moisture characteristics of the wall system. In order to ensure long term durability and repeatable successful implementation with few call-backs, this report demonstrates through measured data that the wall system functions as a dynamic system, responding to changing interior and outdoor environmental conditions within recognized limits of the materials that make up the wall system. A similar investigation was made with respect to the complete redesign of the heating, cooling, air distribution, and ventilation systems intended to optimize the equipment size and configuration to significantly improve efficiency while maintaining indoor comfort. Recognizing the need to demonstrate the benefits of these efficiency features, the builder offered a new house model to serve as a test case to develop framing designs, evaluate material selections and installation requirements, changes to work scopes and contractor learning curves, as well as to compare theoretical performance characteristics with measured results.

  20. Technology Solutions Case Study: Cost Analysis of Roof-Only Air Sealing and Insulation Strategies on 1-1/2 Story Homes in Cold Climates, Minneapolis, MN

    SciTech Connect

    2014-12-01

    This case study describes the External Thermal and Moisture Management System developed by the NorthernSTAR Building America Partnership. This system is typically used in deep energy retrofits and is a valuable approach for the roof-only portions of existing homes, particularly the 1 1/2-story home. It is effective in reducing energy loss through the building envelope, improving building durability, reducing ice dams, and providing opportunities to improve occupant comfort and health.

  1. Impact of Natural Gas Appliances on Pollutant Levels in California Homes

    SciTech Connect

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

    2012-12-01

    This report presents results from the first year of a 2-year study, investigating associations of five air pollutants (CO, NO2, NOX, formaldehyde and acetaldehyde) with the presence of natural gas appliances in California homes. From November 2011 to March 2012, pollutant concentration and occupant activity data were collected in 155 homes for 6-day periods. The sample population included both single-family (68%) and multi-family (32%) dwellings, with 87% having at least one gas appliance and 77% having an unvented gas cooking appliance. The geometric mean (GM) NO2 levels measured in the kitchen, bedroom and outside of homes were similar at values of 15, 12 and 11 ppb, respectively. In contrast, the GM NOx levels measured in the kitchen and bedroom of homes were much higher than levels measured outdoors, at levels of 42 and 41 ppb, compared to 19 ppb, respectively. Roughly 10% of sampled homes had 6-day average NO2 levels that exceeded the outdoor annual average limit set by the California Ambient Air Quality Standards (CAAQS) (30 ppb). The GMs of the highest 1-h and 8-h CO level measured in homes were 2.5 and 1.1 ppm, respectively. Four homes had a 1-h or 8-h concentration that exceeded the outdoor limits set by the CAAQS. The GM formaldehyde and acetaldehyde concentrations measured in homes were 15 and 7 ppb, respectively. Roughly 95% of homes had average formaldehyde levels indoors that exceeded the Chronic Reference Exposure Level set by the California EPA (7 ppb). Concentrations of NO2 and NOx, and to a lesser extent CO were associated with use of gas appliances, particularly unvented gas cooking appliances. Based on first principles, it is expected that effective venting of cooking pollutant emissions at the source will lead to a reduction of pollutant concentrations. However, no statistical association was detected between kitchen exhaust fan use and pollutant concentrations in homes in this study where gas cooking occurred frequently. The lack of

  2. Evaluation of the U.S. Department of Energy Challenge Home Program Certification of Production Builders

    SciTech Connect

    Kerrigan, P.; Loomis, H.

    2014-09-01

    The purpose of this project was to evaluate integrated packages of advanced measures in individual test homes to assess their performance with respect to Building America Program goals, specifically compliance with the DOE Challenge Home Program. BSC consulted on the construction of five test houses by three Cold Climate production builders in three separate US cities. BSC worked with the builders to develop a design package tailored to the cost-related impacts for each builder. Therefore, the resulting design packages do vary from builder to builder. BSC provided support through this research project on the design, construction and performance testing of the five test homes. Overall, the builders have concluded that the energy related upgrades (either through the prescriptive or performance path) represent reasonable upgrades. The builders commented that while not every improvement in specification was cost effective (as in a reasonable payback period), many were improvements that could improve the marketability of the homes and serve to attract more energy efficiency discerning prospective homeowners. However, the builders did express reservations on the associated checklists and added certifications. An increase in administrative time was observed with all builders. The checklists and certifications also inherently increase cost due to: 1. Adding services to the scope of work for various trades, such as HERS Rater, HVAC contractor; 2. Increased material costs related to the checklists, especially the EPA Indoor airPLUS and EPA WaterSense(R) Efficient Hot Water Distribution requirement.

  3. Evaluation of the U.S. Department of Energy Challenge Home Program Certification of Production Builders

    SciTech Connect

    Kerrigan, P.; Loomis, H.

    2014-09-01

    The purpose of this project was to evaluate integrated packages of advanced measures in individual test homes to assess their performance with respect to Building America program goals, specifically compliance with the DOE Challenge Home Program. BSC consulted on the construction of five test houses by three cold climate production builders in three U.S. cities and worked with the builders to develop a design package tailored to the cost-related impacts for each builder. Also, BSC provided support through performance testing of the five test homes. Overall, the builders have concluded that the energy related upgrades (either through the prescriptive or performance path) represent reasonable upgrades. The builders commented that while not every improvement in specification was cost effective (as in a reasonable payback period), many were improvements that could improve the marketability of the homes and serve to attract more energy efficiency discerning prospective homeowners. However, the builders did express reservations on the associated checklists and added certifications. An increase in administrative time was observed with all builders. The checklists and certifications also inherently increase cost due to: adding services to the scope of work for various trades, such as HERS Rater, HVAC contractor; and increased material costs related to the checklists, especially the EPA Indoor airPLUS and EPA WaterSense® Efficient Hot Water Distribution requirement.

  4. Technology Solutions Case Study: Air Leakage and Air Transfer Between Garage and Living Space, Waldorf, Maryland

    SciTech Connect

    2014-11-01

    In this project, Building Science Corporation worked with production homebuilder K. Hovnanian to evaluate 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 multipoint fan pressurization tests and additional zone pressure diagnostic testing measured 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.

  5. Cooling Your Home with Fans and Ventilation

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    can save energy and money when you ventilate your home instead of using your air conditioner, except on the hottest days. Moving air can remove heat from your home. Moving air also creates a wind chill effect that cools your body. Ventilation cooling is usually combined with energy conservation measures like shading provided by trees and window treatments, roof reflectivity (light-colored roof), and attic insulation. Mechanical air circulation can be used with natural venti- lation to increase

  6. Building America Whole-House Solutions for New Homes: Tommy Williams Homes,

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Gainesville, Florida | Department of Energy Tommy Williams Homes, Gainesville, Florida Building America Whole-House Solutions for New Homes: Tommy Williams Homes, Gainesville, Florida Case study of Tommy Williams Homes who partnered with Building America to build HERS-58 homes with foam gaskets at sill and top plates, fresh air intakes, SEER 16/HSPF 9.5 heat pumps, and tight air sealing of 2.7 ACH50. Tommy Williams Homes: Longleaf Village & Belmont - Gainesville, FL (671.55 KB) More

  7. Performance Verification of Production-Scalable Energy-Efficient Solutions: Winchester/Camberley Homes Mixed-Humid Climate

    SciTech Connect

    Mallay, D.; Wiehagen, J.

    2014-07-01

    Winchester/Camberley Homes collaborated with the Building America team Partnership for Home Innovation to develop a new set of high performance home designs that could be applicable on a production scale. The new home designs are to be constructed in the mixed humid climate zone and could eventually apply to all of the builder's home designs to meet or exceed future energy codes or performance-based programs. However, the builder recognized that the combination of new wall framing designs and materials, higher levels of insulation in the wall cavity, and more detailed air sealing to achieve lower infiltration rates changes the moisture characteristics of the wall system. In order to ensure long term durability and repeatable successful implementation with few call-backs, the project team demonstrated through measured data that the wall system functions as a dynamic system, responding to changing interior and outdoor environmental conditions within recognized limits of the materials that make up the wall system. A similar investigation was made with respect to the complete redesign of the HVAC systems to significantly improve efficiency while maintaining indoor comfort. Recognizing the need to demonstrate the benefits of these efficiency features, the builder offered a new house model to serve as a test case to develop framing designs, evaluate material selections and installation requirements, changes to work scopes and contractor learning curves, as well as to compare theoretical performance characteristics with measured results.

  8. Building America Whole-House Solutions for New Homes: Artistic Homes,

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Albuquerque, New Mexico | Department of Energy Artistic Homes, Albuquerque, New Mexico Building America Whole-House Solutions for New Homes: Artistic Homes, Albuquerque, New Mexico Case study of Artistic Homes who worked with Building America research partners Building Science Corporation and BIRA to design homes that achieve HERS <60 without PV or zero net energy with PV with ducts in dropped ceilings, R-50 attic insulation; HRVs with HEPA filters; and extensive air sealing. Artistic

  9. DOE Zero Energy Ready Home Case Study: Palo Duro Homes Inc., Albuquerque,

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    NM, Production | Department of Energy Homes Inc., Albuquerque, NM, Production DOE Zero Energy Ready Home Case Study: Palo Duro Homes Inc., Albuquerque, NM, Production Case study of a DOE Zero Energy Ready Home in Aztec, NM, that scored HERS 49 without PV. This 2,064-square-foot production home has advance framed walls, a spray foamed attic, an air source heat pump, and an HRV. Palo Duro Homes, Inc.- Albuquerque, NM (2.03 MB) More Documents & Publications DOE Zero Energy Ready Home Case

  10. Homeowner's Guide to Window Air Conditioner Installation for Efficiency and Comfort (Fact Sheet), Building America Case Study: Technology Solutions for Existing Homes, Building Technologies Office (BTO)

    SciTech Connect

    Not Available

    2013-06-01

    This fact sheet offers a step-by-step guide to proper installation of window air conditioning units, in order to improve efficiency and comfort for homeowners.

  11. DOE Tour of Zero: Cobbler Lane by Addison Homes | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The home's fresh air system utilizes an outdoor air intake that is ducted to the return side of the heat pump air handler through a high-capture filter. Even when the heat pump is ...

  12. Technology Solutions Case Study: Sealed Air-Return Plenum Retrofit

    SciTech Connect

    none,

    2012-08-01

    In this project, Pacific Northwest National Laboratory researchers greatly improved indoor air quality and HVAC performance by replacing an old, leaky air handler with a new air handler with an air-sealed return plenum with filter; they also sealed the ducts, and added a fresh air intake.

  13. CAES Home

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    User ID: Password: Log In Forgot your password? Working in CAES WIC Home Request Facility Use Conduct Research Flowchart Process Rad Info and Tools Chemical Requisition Guide...

  14. CAES Home

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Working in CAES WIC Home Request Facility Use Conduct Research Flowchart Process Rad Info and Tools Chemical Requisition Guide Chemical and Supply Order Form Training Access...

  15. Challenge Home

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Dir. & NZEH Coalition Develop and disseminate CH sales training to builder partners Generate media content with builder awards, case studies, and articles Challenge Home Locator ...

  16. DOE Zero Energy Ready Home Case Study: KB Home, San Marcos, CA...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    home has R-20 advanced framed walls with batts plus rigid foam sheathing, an air-source heat pump for central air in sealed attic, solar water heating and 100% LED lighting. ...

  17. DOE Zero Energy Ready Home Case Study: Clifton View Homes, Marine...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    slab, R-20 rigid foam under slab; radiant floor heat and passive design; air-to-water heatpump, fresh air intake with fan, triple-pane windows, 100% LED. DOE Zero Energy Ready Home ...

  18. Building America Technology Solutions for New and Existing Homes:

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Air-to-Water Heat Pumps with Radiant Delivery in Low Load Homes (Fact Sheet) | Department of Energy Air-to-Water Heat Pumps with Radiant Delivery in Low Load Homes (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Air-to-Water Heat Pumps with Radiant Delivery in Low Load Homes (Fact Sheet) Researchers from Alliance for Residential Building Initiative worked with two test homes in hot-dry climates to evaluate the in-situ performance of air-to-water heat pump

  19. Addressing Kitchen Contaminants for Healthy, Low-Energy Homes

    SciTech Connect

    Stratton, J. Chris; Singer, Brett C.

    2014-01-01

    Cooking and cooking burners emit pollutants that can adversely affect indoor air quality in residences and significantly impact occupant health. Effective kitchen exhaust ventilation can reduce exposure to cooking-related air pollutants as an enabling step to healthier, low-energy homes. This report by Lawrence Berkeley National Laboratory identifies barriers to the widespread adoption of kitchen exhaust ventilation technologies and practice and proposes a suite of strategies to overcome these barriers. The recommendations have been vetted by a group of industry, regulatory, health, and research experts and stakeholders who convened for two meetings and provided input and feedback to early drafts of this document. The most fundamental barriers are (1) the common misconception, based on a sensory perception of risk, that kitchen exhaust when cooking is unnecessary and (2) the lack of a code requirement for kitchen ventilation in most U.S. locations. Highest priority objectives include the following: (1) Raise awareness among the public and the building industry of the need to install and routinely use kitchen ventilation; (2) Incorporate kitchen exhaust ventilation as a requirement of building codes and improve the mechanisms for code enforcement; (3) Provide best practice product and use-behavior guidance to ventilation equipment purchasers and installers, and; (4) Develop test methods and performance targets to advance development of high performance products. A specific, urgent need is the development of an over-the-range microwave that meets the airflow and sound requirements of ASHRAE Standard 62.2.

  20. Addressing Kitchen Contaminants for Healthy, Low-Energy Homes

    SciTech Connect

    Stratton, J. Chris; Singer, Brett C.

    2014-01-01

    Cooking and cooking burners emit pollutants that can adversely affect indoor air quality in residences and significantly impact occupant health. Effective kitchen exhaust ventilation can reduce exposure to cooking-related air pollutants as an enabling step to healthier, low-energy homes. This report identifies barriers to the widespread adoption of kitchen exhaust ventilation technologies and practice and proposes a suite of strategies to overcome these barriers. The recommendations have been vetted by a group of industry, regulatory, health, and research experts and stakeholders who convened for two web-based meetings and provided input and feedback to early drafts of this document. The most fundamental barriers are (1) the common misconception, based on a sensory perception of risk, that kitchen exhaust when cooking is unnecessary and (2) the lack of a code requirement for kitchen ventilation in most US locations. Highest priority objectives include the following: (1) Raise awareness among the public and the building industry of the need to install and routinely use kitchen ventilation; (2) Incorporate kitchen exhaust ventilation as a requirement of building codes and improve the mechanisms for code enforcement; (3) Provide best practice product and use-behavior guidance to ventilation equipment purchasers and installers, and; (4) Develop test methods and performance targets to advance development of high performance products. A specific, urgent need is the development of an over-the-range microwave that meets the airflow and sound requirements of ASHRAE Standard 62.2.

  1. Laboratory Performance Testing of Residential Window Air Conditioners

    SciTech Connect

    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.

  2. Validation of a zero-equation turbulence model for complex indoor airflow simulation

    SciTech Connect

    Srebric, J.; Chen, Q.; Glicksman, L.R.

    1999-07-01

    The design of an indoor environment requires a tool that can quickly predict the three-dimensional distributions of air velocity, temperature, and contaminant concentrations in the room on a desktop computer. This investigation has tested a zero-equation turbulence model for the prediction of the indoor environment in an office with displacement ventilation, with a heater and infiltration and with forced convection and a partition wall. The computed air velocity and temperature distributions agree well with the measured data. The computing time for each case is less than seven minutes on a PC Pentium II, 350 MHz.

  3. Home Cooling Systems | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Home Cooling Systems Home Cooling Systems When it comes to cooling your house, there are a number of options beyond air conditioning. | Photo courtesy of ©iStockphoto/chrisgramly. When it comes to cooling your house, there are a number of options beyond air conditioning. | Photo courtesy of ©iStockphoto/chrisgramly. Although your first thought for cooling may be air conditioning, there are many alternatives that provide cooling with less energy use. A combination of proper insulation,

  4. Indoor Environmental Quality Benefits of Apartment Energy Retrofits

    SciTech Connect

    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.

  5. Building America Technology Solutions for New and Existing Homes: A Homeowner’s Guide to Window Air Conditioner Installation for Efficiency and Comfort (Fact Sheet)

    Office of Energy Efficiency and Renewable Energy (EERE)

    This step-by-step guide developed by the National Renewable Energy Laboratory describes proper installation of window air conditioning units, in order to improve energy efficiency, save money, and improve comfort for homeowners

  6. Building America Case Study: Meeting DOE Challenge Home Program Certification, Chicago, Illinois; Denver, Colorado; Devens, Massachusetts (Fact Sheet)

    SciTech Connect

    Not Available

    2014-12-01

    The purpose of this project was to evaluate integrated packages of advanced measures in individual test homes to assess their performance with respect to Building America Program goals, specifically compliance with the DOE Challenge Home Program. BSC consulted on the construction of five test houses by three Cold Climate production builders in three separate US cities. BSC worked with the builders to develop a design package tailored to the cost-related impacts for each builder. Therefore, the resulting design packages do vary from builder to builder. BSC provided support through this research project on the design, construction and performance testing of the five test homes. Overall, the builders have concluded that the energy related upgrades (either through the prescriptive or performance path) represent reasonable upgrades. The builders commented that while not every improvement in specification was cost effective (as in a reasonable payback period), many were improvements that could improve the marketability of the homes and serve to attract more energy efficiency discerning prospective homeowners. However, the builders did express reservations on the associated checklists and added certifications. An increase in administrative time was observed with all builders. The checklists and certifications also inherently increase cost due to: 1. Adding services to the scope of work for various trades, such as HERS Rater, HVAC contractor. 2. Increased material costs related to the checklists, especially the EPA Indoor airPLUS and EPA WaterSense Efficient Hot Water Distribution requirement.

  7. Building America Whole-House Solutions for Existing Homes: Exterior...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    A "Plug-n-Play" Air Delivery System for Low-Load Homes and Evaluation of a Residential Thermal Comfort Rating Method Building America Efficient Solutions for Existing Homes Case ...

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

    SciTech Connect

    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.

  9. DOE Zero Energy Ready Home: Near Zero Maine Home II, Vassalboro, Maine |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Home: Near Zero Maine Home II, Vassalboro, Maine DOE Zero Energy Ready Home: Near Zero Maine Home II, Vassalboro, Maine Case study of a DOE Zero Energy Ready home in Vassalboro, Maine, that scored HERS 35 without PV and HERS 11 with PV. This 1,200 ft2 home has 10.5-inch-thick double-walls with 3 layers of mineral wool batt insulation, an R-20 insulated slab, R-70 cellulose in the attic, extensive air sealing, a mini-split heat pump, an heat recovery ventilator, solar

  10. NEST HOME

    Energy.gov [DOE]

    The Missouri University of Science and Technology returns for its sixth Solar Decathlon with its team’s 2015 entry, the Nest Home, designed to serve a family “from a full nest to an empty nest.”

  11. WIPP Home Page Search

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Home Page Search Enter word(s) to search for on the WIPP Home Page: Search

  12. Hazard Assessment of Chemical Air Contaminants Measured in Residences

    SciTech Connect

    Logue, J.M.; McKone, T.E.; Sherman, M. H.; Singer, B.C.

    2010-05-10

    Identifying air pollutants that pose a potential hazard indoors can facilitate exposure mitigation. In this study, we compiled summary results from 77 published studies reporting measurements of chemical pollutants in residences in the United States and in countries with similar lifestyles. These data were used to calculate representative mid-range and upper bound concentrations relevant to chronic exposures for 267 pollutants and representative peak concentrations relevant to acute exposures for 5 activity-associated pollutants. Representative concentrations are compared to available chronic and acute health standards for 97 pollutants. Fifteen pollutants appear to exceed chronic health standards in a large fraction of homes. Nine other pollutants are identified as potential chronic health hazards in a substantial minority of homes and an additional nine are identified as potential hazards in a very small percentage of homes. Nine pollutants are identified as priority hazards based on the robustness of measured concentration data and the fraction of residences that appear to be impacted: acetaldehyde; acrolein; benzene; 1,3-butadiene; 1,4-dichlorobenzene; formaldehyde; naphthalene; nitrogen dioxide; and PM{sub 2.5}. Activity-based emissions are shown to pose potential acute health hazards for PM{sub 2.5}, formaldehyde, CO, chloroform, and NO{sub 2}.

  13. Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 1, Methodology

    SciTech Connect

    Not Available

    1993-11-01

    The Energy Policy and Conservation Act (P.L. 94-163), as amended, establishes energy conservation standards for 12 of the 13 types of consumer products specifically covered by the Act. The legislation requires the Department of Energy (DOE) to consider new or amended standards for these and other types of products at specified times. DOE is currently considering amending standards for seven types of products: water heaters, direct heating equipment, mobile home furnaces, pool heaters, room air conditioners, kitchen ranges and ovens (including microwave ovens), and fluorescent light ballasts and is considering establishing standards for television sets. This Technical Support Document presents the methodology, data, and results from the analysis of the energy and economic impacts of the proposed standards. This volume presents a general description of the analytic approach, including the structure of the major models.

  14. Guide to Air Sealing

    SciTech Connect

    2011-02-01

    Air sealing is one of the most cost-effective ways to improve the comfort and energy efficiency of your home. Hire a certified professional contractor for best results.

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

    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.

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

    SciTech Connect

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

    2009-05-01

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

  17. DOE Zero Energy Ready Home Case Study: The Imery Group — Proud Green Home, Serenbe, GA

    SciTech Connect

    none,

    2014-09-01

    The first certified Zero Energy Ready Home in Georgia was honored in the Custom Builder category of the 2014 Housing Innovation Awards. The 2,811-ft2, two-story custom home has 2x6 advanced framed walls filled with R-20 of open-cell spray foam, plus an R-6.6 insulated coated OSB sheathing. Also included is electronic monitoring equipment that tracks the PV, solar thermal water heater, ERV, mini-split heat pump with three indoor heads, solar water heater, and LED and CFL lighting.

  18. NREL Provides Guidance to Improve Air Mixing and Thermal Comfort...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    proper air mixing and thermal comfort in homes. As U.S. homes become more energy efficient, heating, ventilation, and cooling (HVAC) systems will be downsized, and the air flow ...

  19. Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet), Building America Case Study: Whole-House Solutions for Existing Homes, Building Technologies Office (BTO)

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Passive Room-to-Room Air Transfer Fresno, California PROJECT INFORMATION Construction: Retrofit Type: Single-family Builder: GreenEarthEquities (retrofit); http://greenearthequities.com/ Size: 1,621 ft 2 Price range: About $140,000 Date completed: 2011 Climate zone: Mixed-dry PERFORMANCE DATA HERS index: Not available Builder standard practice: Not available Case study house: 1,621 ft 2 With renewables: Not applicable Without renewables: 50.1% Projected annual energy cost savings: Not available

  20. Building America Whole-House Solutions for New Homes: Challenges...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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

  1. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Installation for Efficiency and Comfort (Fact Sheet) Building America Technology Solutions for New and Existing Homes: A Homeowner's Guide to Window Air Conditioner Installation ...

  2. Numerical simulation of solar heat absorption within indoor space by means of composite grid method

    SciTech Connect

    Omori, Toshiaki; Murakami, Shuzo; Kato, Shinsuke

    1997-12-31

    This paper describes the method for numerical simulation of solar radiation entering indoor spaces through fenestration. The proposed method can systematically deal with the interception of sunlight by buildings in the outdoor space and obstacles in the indoor space by tracing a large number of particles directed toward the sun. Configuration factors from the fenestration to the sky are also three-dimensionally treated by accounting for outdoor geometries. Distribution of the solar heat absorption in the indoor space is calculated by assuming radiation equilibrium. After the solar heat absorption analysis is carried out, heat transfer analysis in the space is conducted taking account of longwave radiation, convective heat transfer, thermal conduction, and cooling/heating by air conditioning. Then, the indoor thermal environment is evaluated using the resulting temperature distribution of air and indoor surfaces. To evaluate the applicability of these procedures, the thermal environment in a model hall with large glass windows and an overhang is predicted. The analyzed hall is assumed to be located near a tall building.

  3. Development Wells At Fallon Naval Air Station Area (Sabin, Et...

    OpenEI (Open Energy Information) [EERE & EIA]

    Fallon Naval Air Station Area (Sabin, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Development Wells At Fallon Naval Air Station...

  4. Passive Solar Home Design | Department of Energy

    Energy Saver

    Weatherize » Moisture Control Moisture Control Controlling moisture can make your home more energy-efficient, less costly to heat and cool, more comfortable, and prevent mold growth. Controlling moisture can make your home more energy-efficient, less costly to heat and cool, more comfortable, and prevent mold growth. Properly controlling moisture in your home will improve the effectiveness of your air sealing and insulation efforts, and these efforts in turn will help control moisture. The best

  5. Measured Performance of Occupied, Side-by-Side, South Texas Homes

    SciTech Connect

    Chasar, Dave; vonSchramm, Valerie

    2012-09-01

    The performance of three homes in San Antonio, Texas with identical floor plans and orientation were evaluated through a partnership between the Florida Solar Energy Center (FSEC), CPS Energy, and Woodside Homes of South Texas. Measurements included whole house gas and electric use as well as heating, cooling, hot water, major appliances and indoor and outdoor conditions. One home built to builder standard practice served as the control, while the other homes demonstrated high performance features. Utility peak electric load comparisons of these dual-fuel homes provide an assessment of envelope and equipment improvements.

  6. Energy Department Launches Better Buildings Alliance Indoor Lighting...

    Office of Environmental Management (EM)

    Better Buildings Alliance Indoor Lighting Campaign for Commercial Buildings Energy Department Launches Better Buildings Alliance Indoor Lighting Campaign for Commercial Buildings May ...

  7. Energy Impacts of Energy and Indoor Environmental Quality Retrofits...

    Office of Scientific and Technical Information (OSTI)

    Energy Impacts of Energy and Indoor Environmental Quality Retrofits of Apartments in California Citation Details In-Document Search Title: Energy Impacts of Energy and Indoor ...

  8. Hawaii Department of Health Indoor and Radiological Health Branch...

    OpenEI (Open Energy Information) [EERE & EIA]

    Indoor and Radiological Health Branch Jump to: navigation, search Name: Hawaii Department of Health Indoor and Radiological Health Branch From Open Energy Information Address: 591...

  9. Air Conditioning | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Heat & Cool » Home Cooling Systems » Air Conditioning Air Conditioning Air conditioners cost U.S. homeowners more than $29 billion each year, and regular maintenance can keep your air conditioner running efficiently. | Photo courtesy of ©iStockphoto/JaniceRichard Air conditioners cost U.S. homeowners more than $29 billion each year, and regular maintenance can keep your air conditioner running efficiently. | Photo courtesy of ©iStockphoto/JaniceRichard Three-quarters of all homes in

  10. DOE Zero Energy Ready Home Case Study: Southern Energy Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Southern Energy Homes, Russellville, AL DOE Zero Energy Ready Home Case Study: Southern Energy Homes, Russellville, AL DOE Zero Energy Ready Home Case Study: Southern Energy Homes, ...

  11. DOE Zero Energy Ready Home Case Study: Evolutionary Home Builders...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Evolutionary Home Builders, The Adaptation Home, Geneva, IL DOE Zero Energy Ready Home Case Study: Evolutionary Home Builders, The Adaptation Home, Geneva, IL DOE Zero Energy Ready ...

  12. DOE Zero Energy Ready Home Case Study: Mandalay Homes, Prescott...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Mandalay Homes, Prescott Valley, AZ DOE Zero Energy Ready Home Case Study: Mandalay Homes, Prescott Valley, AZ DOE Zero Energy Ready Home Case Study: Mandalay Homes, Prescott ...

  13. DOE Zero Energy Ready Home Case Study: Promethean Homes, Charlottesvil...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Promethean Homes, Charlottesville, VA DOE Zero Energy Ready Home Case Study: Promethean Homes, Charlottesville, VA DOE Zero Energy Ready Home Case Study: Promethean Homes, ...

  14. Home Heating Hints | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Home Heating Hints Home Heating Hints December 9, 2014 - 5:10pm Addthis Sealing air leaks can help you save energy and money this winter. | Photo courtesy of Dennis Schroeder, National Renewable Energy Laboratory Sealing air leaks can help you save energy and money this winter. | Photo courtesy of Dennis Schroeder, National Renewable Energy Laboratory Erik Hyrkas Erik Hyrkas Media Relations Specialist, Office of Energy Efficiency & Renewable Energy What are the key facts? Programmable

  15. HOMEe | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    navigation, search Name: HOMEe Place: Denmark Product: Denmark-based maker of home automation products, including devices to manage lighting and climate. References: HOMEe1...

  16. REFLECT HOME

    Energy.gov [DOE]

    Sacramento is nicknamed the City of Trees, so it made sense for the California State University, Sacramento, team to showcase nature in its Solar Decathlon 2015 project. The team’s Reflect Home does just that by embracing the city’s sense of expansive greenery.

  17. DOE Zero Energy Ready Home Case Study: Amerisips Homes, Charleston, SC |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Amerisips Homes, Charleston, SC DOE Zero Energy Ready Home Case Study: Amerisips Homes, Charleston, SC Case study of a DOE Zero Energy Ready home on Johns Island in Charleston, SC, that scored HERS 30 without PV, or HERS 1 with 6-kW of PV. This custom 2-story, 2,085 ft2, home is constructed of structural insulated panels, with 6.5-in. SIPs in the walls and 8.25-in. SIPs in the floor and roof. The HVAC system includes an air-to-water heat pump with fan coil that provides

  18. Building America Whole-House Solutions for New Homes: Pulte Homes and

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Communities of Del Webb, Las Vegas, Nevada | Department of Energy Pulte Homes and Communities of Del Webb, Las Vegas, Nevada Building America Whole-House Solutions for New Homes: Pulte Homes and Communities of Del Webb, Las Vegas, Nevada Case study of Pulte Homes-Las Vegas Division who teamed with Building America team Building Science Corporation to design HERS-54 homes with high-efficiency HVAC with ducts in conditioned space, jump ducts, and a fresh air intake; advanced framed walls;

  19. History of Air Conditioning

    Energy.gov [DOE]

    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.

  20. Building America Whole-House Solutions for Existing Homes: Passive

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Room-to-Room Air Transfer, Fresno, California (Fact Sheet) | Department of Energy Building America Whole-House Solutions for Existing Homes: Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet) Building America Whole-House Solutions for Existing Homes: Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet) In this project, IBACOS, a U.S. Department of Energy Building America team, assessed a strategy for providing conditioned air to bedrooms when the bedroom doors

  1. Home Energy Assessments

    Energy.gov [DOE]

    A home energy assessment, also known as a home energy audit, is the first step to assess how much energy your home consumes and to evaluate what measures you can take to make your home more energy...

  2. Detecting Air Leaks | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Weatherize » Air Sealing » Detecting Air Leaks Detecting Air Leaks For a thorough and accurate measurement of air leakage in your home, hire a qualified technician to conduct an energy assessment, particularly a blower door test. For a thorough and accurate measurement of air leakage in your home, hire a qualified technician to conduct an energy assessment, particularly a blower door test. You may already know where some air leakage occurs in your home, such as an under-the-door draft, but

  3. TRACC Home

    U.S. Department of Energy (DOE) - all webpages

    TRACC Home About TRACC Transportation Research Computing Resources Training & Workshops image image image image image image image image Previous Next Welcome To The Transportation Research And Analysis Computing Center (TRACC) Chartered in 1946 as the nation's first national laboratory, Argonne enters the 21st century focused on solving the major scientific and engineering challenges of our time: sustainable energy, a clean environment, economic competitiveness and national security. Argonne

  4. Home Energy Score

    SciTech Connect

    2011-12-16

    The Home Energy Score allows a homeowner to compare her or his home's energy consumption to that of other homes, similar to a vehicle's mile-per-gallon rating. A home energy assessor will collect energy information during a brief home walk-through and then score that home on a scale of 1 to 10.

  5. Acute changes in pulse pressure in relation to constituents of particulate air pollution in elderly persons

    SciTech Connect

    Jacobs, Lotte; Buczynska, Anna; Walgraeve, Christophe; Delcloo, Andy; Potgieter-Vermaak, Sanja; Van Grieken, Rene; Demeestere, Kristof; Dewulf, Jo; Van Langenhove, Herman; De Backer, Hugo; Nemery, Benoit; Nawrot, Tim S.

    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.

  6. Building America Technology Solutions for New and Existing Homes: Cost

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Analysis of Roof-Only Air Sealing and Insulation Strategies on 1-1/2 Story Homes in Cold Climates, Minneapolis, MN | Department of Energy Cost Analysis of Roof-Only Air Sealing and Insulation Strategies on 1-1/2 Story Homes in Cold Climates, Minneapolis, MN Building America Technology Solutions for New and Existing Homes: Cost Analysis of Roof-Only Air Sealing and Insulation Strategies on 1-1/2 Story Homes in Cold Climates, Minneapolis, MN This case study describes the External Thermal and

  7. New Whole-House Solutions Case Study: Schneider Homes, Inc.

    SciTech Connect

    none,

    2013-02-01

    Schneider Homes cut energy use by 50% over the 2004 IECC on 28 homes built near Seattle in 2008. Schneider packed the walls with R-23 of blown fiberglass and blanketed the ceiling with R-38 of blown cellulose. Ducts went into conditioned space through open-web floor trusses between floors and air handlers went into an air sealed garage closet.

  8. Cold air systems: Sleeping giant

    SciTech Connect

    MacCracken, C.D. )

    1994-04-01

    This article describes how cold air systems help owners increase the profits from their buildings by reducing electric costs and improving indoor air quality through lower relative humidity levels. Cold air distribution involves energy savings, cost savings, space savings, greater comfort, cleaner air, thermal storage, tighter ducting, coil redesign, lower relative humidities, retrofitting, and improved indoor air quality (IAQ). It opens a door for architects, engineers, owners, builders, environmentalists, retrofitters, designers, occupants, and manufacturers. Three things have held up cold air's usage: multiple fan-powered boxes that ate up the energy savings of primary fans. Cold air room diffusers that provided inadequate comfort. Condensation from ducts, boxes, and diffusers. Such problems have been largely eliminated through research and development by utilities and manufacturers. New cold air diffusers no longer need fan powered boxes. It has also been found that condensation is not a concern so long as the ducts are located in air conditioned space, such as drop ceilings or central risers, where relative humidity falls quickly during morning startup.

  9. Building America Technology Solutions for New and Existing Homes: Selecting

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Ventilation Systems for Existing Homes | Department of Energy Selecting Ventilation Systems for Existing Homes Building America Technology Solutions for New and Existing Homes: Selecting Ventilation Systems for Existing Homes In multifamily buildings, particularly in the Northeast, exhaust ventilation strategies are the norm as a means of meeting both local exhaust and whole-unit mechanical ventilation rates. The issue of where the fresh air is coming from is gaining significance as

  10. DOE Zero Energy Ready Home Case Study: Ferguson Design and Construction Inc., Sagaponack, NY, Custom Home

    Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in Long Island, NY, that scored HERS 43 without PV. This 5,088-square-foot custom home has R-25 double-stud walls, a vaulted roof with R-40 blown cellulose, R-10 XPS under slab, a hydro air system with 91% efficient boiler for forced air and radiant floor heat, and 100% LED lights.

  11. DOE Zero Energy Ready Home Case Study: TC Legend, Seattle, WA, Custom Home

    Office of Energy Efficiency and Renewable Energy (EERE)

    Case study of a DOE Zero Energy Ready Home in Seattle, WA, that scored HERS 37 without PV, HERS -1 with PV. This 1,915-square-foot custom home has SIP walls and roof, R-20 XPS under the slab, triple-pane windows, an air to water heat pump for radiant heat, and balanced ventilation with timer-controlled fans to bring in and exhaust air.

  12. DOE Zero Energy Ready Home Case Study: Mandalay Homes, Phoenix, AZ, Affordable

    Office of Energy Efficiency and Renewable Energy (EERE)

    Case study of a DOE Zero Energy Ready Home in Phoenix, AZ, that scored HERS 58 without PV or HERS 38 with PV. This 1,700-square-foot affordable home has R-21 framed walls, a sealed closed-cell spray foamed attic, an air-source heat pump with forced air, and a solar combo system that provides PV, hot water, and space heating.

  13. HIA 2015 DOE Zero Energy Ready Home Case Study: United Way of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... The home's heating system is a 95 AFUE wall-hung boiler that supplies hot water to a hydro-coil in the central air handler. Air conditioning is provided by a 16 SEER air ...

  14. DOE Tour of Zero: The Montlake Modern by TC Legend Homes | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    7 of 17 The home is equipped with a high-capture filtered fresh-air intake for passive makeup air; the air intake has a fan that is electronically controlled to operate when the...

  15. Common Air Conditioner Problems | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Common Air Conditioner Problems Common Air Conditioner Problems A refrigerant leak is one common air conditioning problem. | Photo courtesy of ©iStockphoto/BanksPhotos. A refrigerant leak is one common air conditioning problem. | Photo courtesy of ©iStockphoto/BanksPhotos. One of the most common air conditioning problems is improper operation. If your air conditioner is on, be sure to close your home's windows and outside doors. For room air conditioners, isolate the room or a group of

  16. DOE Zero Energy Ready Home Case Study: Garbett Homes, Herriman...

    Energy.gov [DOE] (indexed site)

    Home DOE Zero Energy Ready Home Case Study: Charles Thomas Homes, Anna Model, Omaha, NE DOE Zero Energy Ready Home Case Study: New Town Builders, Denver, CO, Production ...

  17. Masco Home Services/WellHome | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    WellHome Jump to: navigation, search Name: Masco Home ServicesWellHome Place: Taylor, MI Website: www.mascohomeserviceswellhome. References: Masco Home Services...

  18. DOE Zero Energy Ready Home Case Study: Mandalay Homes, Phoenix...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Phoenix, AZ, Affordable DOE Zero Energy Ready Home Case Study: Mandalay Homes, Phoenix, AZ, Affordable DOE Zero Energy Ready Home Case Study: Mandalay Homes, Phoenix, AZ, ...

  19. 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...

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

    Office of Scientific and Technical Information (OSTI)

    The results indicate that DERs can provide adequate ventilation and IAQ, and that DERs should prioritize source control, particle filtration and well-designed local exhaust systems...

  1. Home Energy Score Interactive Graphic

    Energy.gov [DOE]

    To see a complete Home Energy Score, including Home Facts and Recommendations, view the Home Energy Score Sample Report.

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

    DOE PAGES [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; surrogatemore » measures for human occupancy and activity in the patient rooms using both indoor air CO₂ 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 ~8×10⁶ 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

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

    SciTech Connect

    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 CO₂ 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 ~8×10⁶ 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

  4. Indoor Measurements of Environmental Tobacco Smoke Final Report to the Tobacco Related Disease Research Program

    SciTech Connect

    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

  5. DOE Zero Energy Ready Home Case Study: TC Legend Homes, Seattle, Washington

    SciTech Connect

    none,

    2013-09-01

    This house incorporates slab-on-grade, EPS roof, and radiant heating with an air-to-water heat pump that also preheats domestic hot water. Without counting in the solar panels, the home earns a home energy rating system (HERS) score of 37, with projected utility bills of about $740 a year. With the 6.4-kW photovoltaic power system installed on the roof, the home’s HERS scores drops to -1 and utility bills for the all-electric home drop to zero. This home was awarded a 2013 Housing Innovation Award in the affordable builder category.

  6. High-Efficiency Window Air Conditioners - Building America Top Innovation |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Window Air Conditioners - Building America Top Innovation High-Efficiency Window Air Conditioners - Building America Top Innovation This photo shows a window air conditioning unit in place in a window frame. Window air conditioners are inexpensive, portable, and can be installed by home occupants, making them a good solution for spot cooling and for installing air conditioning into homes that lack ductwork. However, window air conditioners have low minimum efficiency

  7. Home Energy Solutions for Existing Homes

    Office of Energy Efficiency and Renewable Energy (EERE)

    The first step to participate in this program is to evaluate a home's energy use by using Energy Trust's online Home Energy Profile Tool or by calling 1-866-368-7878. Homeowners may also opt for a...

  8. Global Home Filesystem

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Global Home Global Home Filesystem Overview Global home directories (or "global homes") provide a convenient means for a user to have access to dotfiles, source files, input files, configuration files, etc., regardless of the platform the user is logged in to. Quotas, Performance, and Usage Default global home quotas are 40 GB and 1,000,000 inodes. Quota increases in global homes are approved only in extremely unusual circumstances; users are encouraged to use the various scratch,

  9. Texas Field Experiment Results: Performance of the Weatherization Assistance Program in Hot-Climate, Low-Income Homes

    SciTech Connect

    McCold, Lance Neil; Goeltz, Rick; Ternes, Mark P; Berry, Linda G

    2008-04-01

    A field test involving 35 houses was performed in Texas between 2000 and 2003 to study the response of low-income homes in hot climates to weatherization performed as part of the U.S Department of Energy Weatherization Assistance Program and to investigate certain methods to improve weatherization performance. The study found that improved Program designs and the use of advanced energy audits resulted in better weatherization measures being installed (use of blower doors to guide the infiltration work, more frequent installation of attic insulation, and installation of wall insulation) in the study homes, improved space-heating savings performance compared to the Program as implemented in the hot climates in 1989, and more comfortable indoor temperatures. Two key policy dilemmas for Texas and other hot-climate states were highlighted by the study; namely, how to balance expenditures between installing cost-effective weatherization measures and performing health, safety, and repair items, and that health, safety, and repair items can have an adverse impact on energy savings, which further complicates the weatherization decision process. Several occupant and equipment-related behaviors were observed in the field test homes that help explain why audits may over predict energy consumptions and savings and why air-conditioning electricity savings are difficult to measure. Based on this study, it is recommended that states in hot climates be encouraged to select from an expanded list of measures using advanced audits or other techniques, and further studies examining the benefits obtained from air conditioner measures should be performed. In addition, guidelines should be developed for the hot-climate states on how to (a) balance the objectives of saving energy, improving health and safety, and addressing repair issues, and (b) select repair items.

  10. Building America Case Study: Cost Analysis of Roof-Only Air Sealing and Insulation Strategies on 1-1/2 Story Homes in Cold Climates, Minneapolis, MN (Fact Sheet)

    SciTech Connect

    Not Available

    2014-12-01

    The External Thermal and Moisture Management System (ETMMS), typically seen in deep energy retrofits, is a valuable approach for the roof-only portions of existing homes, particularly the 1 1/2-story home. It is effective in reducing energy loss through the building envelope, improving building durability, reducing ice dams, and providing opportunities to improve occupant comfort and health.

  11. Forced Air Systems in High Performance Homes

    Energy.gov [DOE]

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

  12. Investigating Solutions to Wind Washing Issues in 2-Story Florida Homes; Phase 1

    SciTech Connect

    Cummings, James B.; Withers, Charles R.; LaHiff, Ian L.

    2009-12-01

    This report is about a study to identify air flow failures and possible insulation system failures. Field testing was ocmpleted on 32 homes and 6 homes were monitored and repaired.

  13. NREL: Performance and Reliability R&D - Indoor Testing

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Our indoor testing and R&D equipment can be found in several laboratories across the ... We use an assortment of indoor equipment to test modules and systems under simulated and ...

  14. Energy Saver 101: Home Cooling Infographic | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Saver 101: Home Cooling Infographic Energy Saver 101: Home Cooling Infographic While home cooling only accounts for 6 percent of the average home's energy use, it can lead to high energy bills during the warm months. This summer, don't let your energy bills go through the roof. Our Energy Saver 101 infographic covers everything you need to know about home cooling -- from how an air conditioner works and the different types of systems on the market to proper maintenance and energy-saving

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

    SciTech Connect

    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.

  16. Early Oak Ridge Trailer Home | Y-12 National Security Complex

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Home Early Oak Ridge Trailer Home A typical trailer home

  17. Measured Performance of Occupied, Side-by-Side, South Texas Homes

    SciTech Connect

    Chasar, D.; vonSchramm, V.

    2012-09-01

    The performance of three homes in San Antonio, Texas with identical floor plans and orientation were evaluated through a partnership between the Florida Solar Energy Center (FSEC), CPS Energy, and Woodside Homes of South Texas. Measurements included whole house gas and electric use as well as heating, cooling, hot water, major appliances and indoor and outdoor conditions. One home built to builder standard practice served as the control, while the other homes demonstrated high performance features. Utility peak electric load comparisons of these dual-fuel homes provide an assessment of envelope and equipment improvements. The control home used natural gas for space and water heating only, while the improved homes had gas heating and major appliances with the exception of a high efficiency heat pump in one home. Data collection began in July of 2009 and continued through April of 2011. Energy ratings for the homes yielded E-Scales (aka HERS indices) of 86 for the control home, 54 for one improved home and 37 for the other home which has a 2.4kW photovoltaic array.

  18. Building America Case Study: Challenges of Achieving 2012 IECC Air Sealing Requirements in Multifamily Dwellings, Upstate New York (Fact Sheet), Whole-House Solutions for New Homes, Energy Efficiency & Renewable Energy (EERE)

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    information, see the Building America report, Challenges of Achieving 2012 IECC Air Sealing Requirements in Multifamily Buildings,

  19. Building America Whole-House Solutions for New Homes: Tom Walsh...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    who worked with Building America research partner BIRA to design HERS 59 homes with ducts in conditioned space in dropped ceiling soffits, extensive air sealing, and extensve...

  20. Building America Whole-House Solutions for New Homes: Pine Mountain...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    research partners IBACOS and Southface Energy Institute to design HERS-59 homes with air-tight ... PDF icon Pine Mountain Builders - Georgia More Documents & Publications Building ...

  1. Association of indoor nitrogen dioxide with respiratory symptoms and pulmonary function in children

    SciTech Connect

    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.

  2. DOE Zero Energy Ready Home National Program Requirements

    Energy.gov [DOE] (indexed site)

    ... the home's thermal and air barrier boundary 16 4. Water Efficiency Hot water delivery ... Zones 4 Marine 5,6,7,8) AFUE 80% 90% 94% SEER 18 15 13 HSPF 8.2 9 10 23 Geothermal Heat ...

  3. DOE Zero Energy Ready Home Case Study: Greenhill Contracting...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    All of the homes have R-22 ICF walls, R-20 closed-cell spray foam under the slab, a ground-source heat pump with desuperheater for hot water, triple-pane windows, very tight air ...

  4. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Researchers from Alliance for Residential Building Initiative worked with two test homes in hot-dry climates to evaluate the in-situ performance of air-to-water heat pump systems, ...

  5. New Whole-House Solutions Case Study: Quadrant Homes

    SciTech Connect

    none,

    2013-02-01

    Quadrant moved ducts and high efficiency furnace inside conditioned space on nearly all 300 customizable house plans. The builder uses dry, true factory-assembled walls, extensive air sealing, and just in time delivery for pre-sold homes.

  6. Home Energy Assessments

    ScienceCinema

    Dispenza, Jason

    2013-05-29

    A home energy assessment, also known as a home energy audit, is the first step to assess how much energy your home consumes and to evaluate what measures you can take to make your home more energy efficient. An assessment will show you problems that may, when corrected, save you significant amounts of money over time. This video shows some of the ways that a contractor may test your home during an assessment, and helps you understand how an assessment can help you move toward energy savings. Find out more at: http://www.energysavers.gov/your_home/energy_audits/index.cfm/mytopic=11160

  7. Home Energy Assessments

    SciTech Connect

    Dispenza, Jason

    2010-01-01

    A home energy assessment, also known as a home energy audit, is the first step to assess how much energy your home consumes and to evaluate what measures you can take to make your home more energy efficient. An assessment will show you problems that may, when corrected, save you significant amounts of money over time. This video shows some of the ways that a contractor may test your home during an assessment, and helps you understand how an assessment can help you move toward energy savings. Find out more at: http://www.energysavers.gov/your_home/energy_audits/index.cfm/mytopic=11160

  8. Keeping the home fires burning

    SciTech Connect

    Valenti, M.

    1993-07-01

    Some utilities and thermal researchers are devising thermoelectric and thermophotovoltaic technologies to convert furnace heat to electricity and keep home heating systems functioning during extended power failures. Storms that damage power lines often leave homes without heat, since the electricity supplied to furnace blowers is cut along with all other electricity. One case in points is the March 1991 ice storm that left nearly 200,000 Rochester Gas and Electric Corp. customers without electrical power, some for up to two weeks. This led the Rochester, N.Y., utility, RG and E, to search for an independent power source that could provide homes with heat during prolonged outages. RG and E funded development of a continuous gas furnace by the GE Research and Development Center in Schenectady, N.Y., that would keep its customers' homes heated and provide some electricity during power outages. Since natural gas lines are rarely interrupted during a power outage, the furnace is still a potential source of heat, but only if there is some way to supply electricity that is independent of the grid, said Bruce Snow, manager and chief engineer of the technical services division at RG and E. The electricity would power the furnace blower, which blows hot air through air ducts, or run the motor that pumps water through a piping system to keep the house warm. Such a thermoelectrical system involves heating the two junctions of thermocouples, which are made of dissimilar wires, at two different temperatures in order to create electricity. A newer technology, thermophoto-voltaics, also converts heat to electricity. In this process described here, the heat causes an emitter to radiate a wavelength of light, which is converted into electricity by a photovoltaic unit.

  9. Spring Home Maintenance: Windows, Windows, Windows! | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Spring Home Maintenance: Windows, Windows, Windows! Spring Home Maintenance: Windows, Windows, Windows! April 26, 2013 - 11:42am Addthis Caulking is an easy way to reduce air leakage around your windows. | Photo courtesy of ©iStockphoto.com/BanksPhotos Caulking is an easy way to reduce air leakage around your windows. | Photo courtesy of ©iStockphoto.com/BanksPhotos Erin Connealy Communications Specialist, Office of Energy Efficiency and Renewable Energy How can I participate? Use these tips

  10. Imagine Homes | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Homes Jump to: navigation, search Name: Imagine Homes Place: San Antonio, TX Website: www.imaginehomes.com References: Imagine Homes1 Information About Partnership with NREL...

  11. Energy-Efficient Manufactured Homes

    Energy.gov [DOE]

    Like site-built homes, new manufactured homes (formerly known as mobile homes) can be designed for energy efficiency and renewable energy.

  12. Project Profile: CSP Tower Air Brayton Combustor | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Concentrating Solar Power Project Profile: CSP Tower Air Brayton Combustor Project ... research that are in progress. SunShot Home About the SunShot Initiative Concentrating ...

  13. Air-Conditioning Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Conditioning Basics Air-Conditioning Basics August 16, 2013 - 1:59pm Addthis Air conditioning is one of the most common ways to cool homes and buildings. How Air Conditioners Work Air conditioners employ the same operating principles and basic components as refrigerators. Refrigerators use energy (usually electricity) to transfer heat from the cool interior of the refrigerator to the relatively warm surroundings; likewise, an air conditioner uses energy to transfer heat from the interior space

  14. Strategy Guideline. Compact Air Distribution Systems

    SciTech Connect

    Burdick, Arlan

    2013-06-01

    This guideline discusses the benefits and challenges of using a compact air distribution system to handle the reduced loads and reduced air volume needed to condition the space within an energy efficient home. The decision criteria for a compact air distribution system must be determined early in the whole-house design process, considering both supply and return air design. However, careful installation of a compact air distribution system can result in lower material costs from smaller equipment, shorter duct runs, and fewer outlets; increased installation efficiencies, including ease of fitting the system into conditioned space; lower loads on a better balanced HVAC system, and overall improved energy efficiency of the home.

  15. Building America Best Practices Series, Vol. 10 - Retrofit Techniques...

    Energy.gov [DOE] (indexed site)

    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. ...

  16. HIA 2015 DOE Zero Energy Ready Home Case Study: Mutual Housing...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... KEY FEATURES * DOE Zero Energy Ready Home Path: Performance. * Walls: 2x4; 16" on center; ... fans. * HVAC: Air-to-water heat pumps; 13 SEER; 11 HSPF. * Hot Water: Air-to-water heat ...

  17. New Whole-House Solutions Case Study: Tommy Williams Homes, Gainesville, Florida

    SciTech Connect

    none,

    2012-04-01

    This builder partnered with Building America to build HERS-58 homes with foam gaskets at sill and top plates, fresh air intakes, SEER 16/HSPF 9.5 heat pumps, and tight air sealing of 2.7 ACH50.

  18. Building America Case Studies for New Homes: The Impact of Thermostat...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    air distribution system. Graphic courtesy of IBACOS, Inc. A "Plug-n-Play" Air Delivery System for Low-Load Homes and Evaluation of a Residential Thermal Comfort Rating Method

  19. New Homes Incentive Program

    Energy.gov [DOE]

    Most incentives are based on a home's Energy Performance Score (EPS), a measurement tool that assesses a home's energy consumption, estimated utility costs and carbon impact. The EPS allows...

  20. New Home Rebate

    Energy.gov [DOE]

    The Alaska Housing Finance Corporation (AFHC) provides rebates to Alaskans who purchase or build new, energy-efficient homes. AFHC uses the Home Energy Rating System index to determine the size of...

  1. DOE Challenge Home (Now Zero Energy Ready Home) - Building America...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    DOE Challenge Home (Now Zero Energy Ready Home) - Building America Top Innovation DOE Challenge Home ... These homes are saving homeowners over 10 million a year in utility bills. The ...

  2. DOE Zero Energy Ready Home Case Study: Cobblestone Homes, Midland...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cobblestone Homes, Midland, MI DOE Zero Energy Ready Home Case Study: Cobblestone Homes, Midland, MI Case study of a DOE Zero Energy Ready home in Midland, MI, that scored HERS 49 ...

  3. DOE Zero Energy Ready Home Case Study: Green Extreme Homes &...

    Energy.gov [DOE] (indexed site)

    Green Extreme Homes & Carl Franklin Homes, Garland, TX Case study of a DOE Zero Energy Ready affordable home in Garland, TX, that was the first retrofit home certified to the DOE ...

  4. HomeCooling101

    Energy Saver

    Improvement Catalyst: Strategy and Framework Home Improvement Catalyst: Strategy and Framework To identify and prioritize activities where DOE can have the greatest impact in accelerating adoption of energy efficient measures at key home improvement transactions. Home Improvement Catalyst: Strategy and Framework (1.5 MB) More Documents & Publications Fact Sheet - Better Buildings Residential Home Improvement Catalyst: Strategies for Ongoing Customer Engagement (201) Residential Buildings

  5. Homes | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Homes Homes EERE leads a robust network of researchers and other partners to continually develop cost-effective energy-saving solutions that help make our country run better through increased efficiency — promoting better plants, manufacturing processes, and products; more efficient new homes and improved older homes; and other solutions to enhance the buildings in which we work, shop, and lead our everyday lives. EERE leads a robust network of researchers and other partners to continually

  6. Integrating affordability, energy and environmental efficiency, air quality and disaster resistance into residential design and construction

    SciTech Connect

    Cook, G.D.

    1995-12-31

    Much has been researched and written about the individual qualities of good home design and construction in terms of: energy efficiency; affordability; indoor air quality; sustainability; and wind, fire, and flood resistance. The real challenge is to integrate all these characteristics into the ideal house. The purpose of this paper is to review the characteristics of each of the above features and explore the integration of them into the ideal residential structure. The house would take the shape of a compact two story structure. A geometrically compact structure uses less construction materials per floor area, presents less area for improved thermal efficiency, and less profile for wind and flood resistance. The first floor would be constructed using insulated strong high thermal mass masonry system resistant to flood, wind, fire, and termite damage. The second story would be constructed using a lighter reinforced wood frame system with between stud insulation coupled with exterior insulated sheathing to minimize thermal bridging across studs. Optimizing floor plan such as separating living and sleeping areas present opportunities for efficient split HVAC zoning, natural ventilation, and solar passive adaptation. The design would emphasize the 4, 8, and 12 foot dimensioning for waste reduction; selection of environmentally friendly building materials, such as cellulose insulation; and efficient lighting and appliances. Features providing improved indoor air quality such as prudent duct selection, design and location, use of radon barriers, omission of carpeting, and control of moisture would be addressed. The design philosophy, concepts and rationale for the integration of these and many other features of the ideal residence will be addressed and illustrated.

  7. DOE Tour of Zero: The Drummond House by Durable Energy Builders...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Indoor airPLUS, ENERGY STAR, the Institute for ... stale air from the home for a greater efficiency and healthier indoor ... electric system via a "smart panel" so that ...

  8. Lessons from a Home Inspection

    Energy.gov [DOE]

    Maintenance tips from a home inspector to keep the systems and appliances in your home running efficiently.

  9. Strategy Guideline: Demonstration Home

    SciTech Connect

    Savage, C.; Hunt, A.

    2012-12-01

    This guideline will provide a general overview of the different kinds of demonstration home projects, a basic understanding of the different roles and responsibilities involved in the successful completion of a demonstration home, and an introduction into some of the lessons learned from actual demonstration home projects. Also, this guideline will specifically look at the communication methods employed during demonstration home projects. And lastly, we will focus on how to best create a communication plan for including an energy efficient message in a demonstration home project and carry that message to successful completion.

  10. Strategy Guideline. Demonstration Home

    SciTech Connect

    Hunt, A.; Savage, C.

    2012-12-01

    This guideline will provide a general overview of the different kinds of demonstration home projects, a basic understanding of the different roles and responsibilities involved in the successful completion of a demonstration home, and an introduction into some of the lessons learned from actual demonstration home projects. Also, this guideline will specifically look at the communication methods employed during demonstration home projects. And lastly, we will focus on how to best create a communication plan for including an energy efficient message in a demonstration home project and carry that message to successful completion.

  11. Building America Efficient Solutions for Existing Homes Case Study: Deep Energy Retrofit of 1910 House, Portland, Oregon

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    one-and-a-half-story, two-bedroom home with a half-basement is typical of 100-year-old homes in Portland, Oregon. The home had no insulation, an unfinished basement, old appliances and air leaks everywhere when purchased by its current owner in 2010. The owners performed a full deep energy retrofit, including air sealing and insulating exterior walls and attic and installing new, efficient appliances. Building America researchers from the Pacific Northwest National Laboratory audited the home

  12. Air Leaks in Unexpected Places | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Air Leaks in Unexpected Places Air Leaks in Unexpected Places February 3, 2015 - 9:58am Addthis Sealing air leaks will help to decrease heating and cooling costs and make your home more comfortable. | Photo courtesy of Dennis Schroeder, National Renewable Energy Laboratory Sealing air leaks will help to decrease heating and cooling costs and make your home more comfortable. | Photo courtesy of Dennis Schroeder, National Renewable Energy Laboratory Elizabeth Spencer Communicator, National

  13. 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...

  14. Review of some effects of climate change on indoor environmental...

    Office of Scientific and Technical Information (OSTI)

    Review of some effects of climate change on indoor environmental quality and health and associated no-regrets mitigation measures Citation Details In-Document Search This content ...

  15. Criegee intermediates in the indoor environment. New insights

    DOE PAGES [OSTI]

    Shallcross, D. E.; Taatjes, C. A.; Percival, C. J.

    2014-03-25

    Criegee intermediates are formed in the ozonolysis of alkenes and play an important role in indoor chemistry, notably as a source of OH radicals. Recent studies have shown that these Criegee intermediates react very quickly with NO2, SO2, and carbonyls, and in this study, steady-state calculations are used to inspect the potential impact of these data on indoor chemistry. It is shown that these reactions could accelerate NO3 formation and SO2 removal in the indoor environment significantly. In addition, reaction between Criegee intermediates and halogenated carbonyls could provide a significant loss process indoors, where currently one does not exist.

  16. Compressed Air

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Lighting Compressed Air ESUE Motors Federal Agriculture Compressed Air Compressed Air Roadmap The Bonneville Power Administration created the roadmap to help utilities find energy...

  17. DOE ZERH Case Study: Evolutionary Home Builders, The Adaptation Home, Geneva, IL

    SciTech Connect

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the cold climate that got a HERS 30 without PV, with 2x8 24” on center walls with blown fiberglass and 4” polysio rigid foam; basement with 2” XPS interior, 4” under slab, 4” exterior of foundation wall; vented attic with R-100 blown cellulose; wo air-to-air heat pumps SEER 14.1; HSPF 9.6; heat pump water heater.

  18. Hickam Air Force Base | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Technology Validation » Hickam Air Force Base Hickam Air Force Base Photo of hybrid fuel cell bus at Hickam Air Force Base Hickam Air Force Base spans 2,850 acres in Honolulu, Hawaii. The military base is home to the 15th Airlift Wing, the Hawaii Air National Guard, and the Pacific Air Forces headquarters. With support from the Hawaii Center for Advanced Transportation Technologies and the Air Force Advanced Power Technology Office, Hickam added a fuel cell hybrid electric bus to its fleet in

  19. DOE Zero Energy Ready Home: Montlake Modern- Seattle, Washington

    Office of Energy Efficiency and Renewable Energy (EERE)

    This DOE Zero Energy Ready Home features structural insulated panel walls and roof, an air-to-water heat pump plus radiant floor heat; 100% LED lighting; filtered-fan-powered fresh air intake; triple-pane windows, and 9.7 kWh PV for electric car charging station.

  20. Designing Forced-Air HVAC Systems

    SciTech Connect

    2010-08-31

    This guide explains proper calculation of heating and cooling design loads for homes.used to calculated for the home using the protocols set forth in the latest edition of the Air Conditioning Contractors of America’s (ACCA) Manual J (currently the 8th edition), ASHRAE 2009 Handbook of Fundamentals, or an equivalent computation procedure.

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

    Office of Energy Efficiency and Renewable Energy (EERE)

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

  2. Building America Top Innovations 2013 Profile … Zero Energy-Ready Single-Family Homes

    Energy Saver

    homes that are zero energy ready is a goal of the U.S. Department of Energy's Building America program and one embodied in Building America's premier home certification program, the Challenge Home program. A net zero energy home is one that produces as much energy as the home uses. Solar power from photovoltaic panels can provide the energy but before the panels go on, there is a lot the builder can do to reduce the amount of power the home will consume. Increasing insulation levels, air sealing

  3. DOE Zero Energy Ready Home Case Study: Ferguson Design and Construction

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Inc., Sagaponack, NY, Custom Home | Department of Energy Ferguson Design and Construction Inc., Sagaponack, NY, Custom Home DOE Zero Energy Ready Home Case Study: Ferguson Design and Construction Inc., Sagaponack, NY, Custom Home Case study of a DOE Zero Energy Ready Home in Long Island, NY, that scored HERS 43 without PV. This 5,088-square-foot custom home has R-25 double-stud walls, a vaulted roof with R-40 blown cellulose, R-10 XPS under slab, a hydro air system with 91% efficient boiler

  4. New Whole-House Solutions Case Study: Schneider Homes, Inc., Burien, WA

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Schneider Homes worked with the U.S. Department of Energy's Building America program to design 37 energy efficient homes at the Village at Miller Creek, in Burien, Washington. Schneider Homes used analysis from Washington State University's Extension Energy Office, a member of Building America's BIRA team, to determine the most cost-effective measures for significant energy savings. The homes were air sealed according to the EPA thermal bypass checklist. Contractors caulked all mechanical

  5. Air Quality

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Air Quality Air Quality To preserve our existing wilderness-area air quality, LANL implements a conscientious program of air monitoring. March 17, 2015 Real-time data monitoring ...

  6. Pulmonary function and respiratory symptoms of school children exposed to ambient air pollution

    SciTech Connect

    Kim, Yoon Shin; Ko, Ung Ring

    1996-12-31

    This study was undertaken to evaluate the health effect of air pollution on pulmonary function and respiratory symptoms of Korean school children between 7 and 10 years of age during November 1995-January 1996. A standard respiratory symptom questionnaire was administered and spirometry was performed to examine pulmonary function of 121 children in an urban polluted area, Seoul, and of 119 children in non-polluted area, Sokcho, respectively. There was significant difference in the level of pulmonary function [forced expiratory volume in second (FEV{sub 1.0}) and forced vital capacity (FVC)] between exposed groups to polluted area and non-polluted area. Parental smoking was significantly related to respiratory symptoms of cough, phlegm, and the level of pulmonary function. The observed changes in FEV{sub 1.0} and FVC seemed to relate to home cooking fuel, not to respiratory symptoms. The additional longitudinal work that carefully monitors ambient and indoor air pollution and health effects data should be conducted to confirm these results.

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

    SciTech Connect

    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).

  8. Energy Efficiency -- Home Page

    Energy Information Administration (EIA) (indexed site)

    If you are having trouble, call 202-586-8800 for help. Home >Energy Users EEnergy Efficiency Page Energy-Efficiency Measurement MEASUREMENT DISCUSSION: Measures and Policy Issues...

  9. Home Energy Score

    Energy.gov [DOE]

    Lead Performers: U.S. Department of Energy – Washington, D.C. Partners: http://energy.gov/eere/buildings/home-energy-score-partners

  10. DOE Tour of Zero Floorplans: ICF Home by Charis Homes | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy ICF Home by Charis Homes DOE Tour of Zero Floorplans: ICF Home by Charis Homes DOE Tour of Zero Floorplans: ICF Home by Charis

  11. Energy and indoor environmental quality in relocatable classrooms

    SciTech Connect

    Apte, Michael; Hodgson, Alfred; Shendell, Derek; Dibartolomeo, Dennis; Hochi, Toshifumi; Kumar, Satish; Lee, Seung-Min; Liff, Shawna; Rainer, Leo; Schmidt, Richard; Sullivan, Douglas; Diamond, Richard; Fisk, William

    2002-02-01

    Relocatable classrooms (RCs) are commonly utilized by school districts with changing demographics and enrollment sizes. Four energy-efficient RCs were designed and constructed for this study to demonstrate technologies that simultaneously attempt to improve energy efficiency and indoor environmental quality (IEQ). Two were installed at each of two school districts, and energy use and IEQ parameters were monitored during occupancy. Two (one per school) were finished with materials selected for reduced emissions of toxic and odorous volatile organic compounds (VOCs). Each RC had two HVAC systems, alternated weekly, consisting of a standard heat-pump system and an indirect-direct evaporative cooling (IDEC) system with gas-fired hydronic heating. The hypothesized advantages of the IDEC include continuous outside air ventilation at {ge}7.5 L s{sup -1} per person, {approx}70% less cooling energy and efficient particle filtration. Measurements include: carbon dioxide, particles, VOCs, temperature, humidity, thermal comfort, noise, meteorology, and energy use. Preliminary IEQ monitoring results are reported.

  12. A Research Agenda on Assessing and Remediating Home Dampness and Mold to Reduce Dampness-Related Health Effects

    SciTech Connect

    Mendell, Mark J.

    2015-06-01

    This report briefly summarizes, based on recent review articles and selected more recent research reports, current scientific knowledge on two topics: assessing unhealthy levels of indoor D/M in homes and remediating home dampness-related problems to protect health. Based on a comparison of current scientific knowledge to that required to support effective, evidence-based, health-protective policies on home D/M, gaps in knowledge are highlighted, prior questions and research questions specified, and necessary research activities and approaches recommended.

  13. Air exchange effectiveness of conventional and task ventilation for offices

    SciTech Connect

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

    1991-12-01

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

  14. Air exchange effectiveness of conventional and task ventilation for offices

    SciTech Connect

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

    1991-12-01

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

  15. Building America Case Study: Overcoming Comfort Issues Due to Reduced Flow Room Air Mixing (Fact Sheet), Technology Solutions for New and Existing Homes, Energy Efficiency & Renewable Energy (EERE)

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Overcoming Comfort Issues Due to Reduced Flow Room Air Mixing PROJECT INFORMATION Project Name: Reduced Flow Room Air Mixing Risks Location: Various U.S. areas IBACOS, ibacos.com Application: Retrofit Component: Heating and cooling equipment Year Tested: 2013-2014 Climate Zone: All PERFORMANCE DATA Modeled Load Reduction (Btu/h) Heating Load: Pre-Retrofit: 80,000 Btu/h Post-Retrofit: 25,000 Btu/h Cooling Load: Pre-Retrofit: 30,000 Btu/h Post-Retrofit: 12,000 Btu/h Modeled Airflow Reduction

  16. DOE Zero Energy Ready Home Case Study: High Performance Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    PA DOE Zero Energy Ready Home Case Study: Sunroc Builders, Bates Avenue, Lakeland, FL DOE Zero Energy Ready Home Case Study, Nexus EnergyHomes, Frederick, MD, Production DOE ...

  17. DOE Zero Energy Ready Home Case Study: Charles Thomas Homes,...

    Energy.gov [DOE] (indexed site)

    Charles Thomas Homes, Anna Model, Omaha, NE Case study of a DOE 2015 Housing Innovation ... DOE Zero Energy Ready Home Case Study: Charles Thomas Homes, Omaha, NE (1.11 MB) More ...

  18. DOE Zero Energy Ready Home Case Study: Mandalay Homes, Prescott...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Prescott Valley, AZ DOE Zero Energy Ready Home Case Study: Mandalay Homes, Prescott Valley, AZ Case study of a DOE Zero Energy Ready home in northern AZ that achieved a HERS score ...

  19. 2017 Home Performance Coalition Northwest Regional Home Performance

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Conference | Department of Energy Coalition Northwest Regional Home Performance Conference 2017 Home Performance Coalition Northwest Regional Home Performance Conference January 23, 2017 9:00AM EST to January 24, 2017 5:00PM EST Portland, Oregon

  20. The Home Microbiome Project

    SciTech Connect

    Gilbert, Jack

    2014-08-25

    The Home Microbiome Project is an initiative aimed at uncovering the dynamic co-associations between people's bacteria and the bacteria found in their homes.The hope is that the data and project will show that routine monitoring of the microbial diversity of your body and of the environment in which you live is possible.

  1. The Home Microbiome Project

    ScienceCinema

    Gilbert, Jack

    2014-09-15

    The Home Microbiome Project is an initiative aimed at uncovering the dynamic co-associations between people's bacteria and the bacteria found in their homes.The hope is that the data and project will show that routine monitoring of the microbial diversity of your body and of the environment in which you live is possible.

  2. Guidelines for Home Energy Professionals Project: Benefits for Home Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Workers | Department of Energy for Home Energy Workers Guidelines for Home Energy Professionals Project: Benefits for Home Energy Workers Photo of a weatherization worker putting on personal protective equipment to prepare for adding insulation to this home. The Guidelines for Home Energy Professionals project fosters the growth of a high-quality residential energy upgrade market and a skilled, credentialed workforce. As a result, home energy workers can: Stand out during job interviews and

  3. Building America Whole-House Solutions for New Homes: Challenges of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Achieving 2012 IECC Air Sealing Requirements in Multifamily Dwellings, Upstate New York | Department of Energy Whole-House Solutions for New Homes: Challenges of Achieving 2012 IECC Air Sealing Requirements in Multifamily Dwellings, Upstate New York Building America Whole-House Solutions for New Homes: Challenges of Achieving 2012 IECC Air Sealing Requirements in Multifamily Dwellings, Upstate New York In this project, the Consortium for Advanced Residential Buildings team sought to create a

  4. Room Air Conditioners | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Room Air Conditioners Room Air Conditioners A room air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/kschulze. A room air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/kschulze. Room or window air conditioners cool rooms rather than the entire home or business. If they provide cooling only where they're needed, room air conditioners are less expensive to operate than central units, even though their

  5. History of Air Conditioning | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    History of Air Conditioning History of Air Conditioning July 20, 2015 - 3:15pm Addthis Paul Lester Paul Lester Digital Content Specialist, Office of Public Affairs MORE ON AIR CONDITIONING Check out our Energy Saver 101 infographic to learn how air conditioners work. Go to Energy Saver for more tips and advice on home cooling. Stay up-to-date on how the Energy Department is working to improve air conditioning technology. We take the air conditioner for granted, but imagine what life would be

  6. Solar Homes in Watsonville, California

    Energy.gov [DOE]

    This photograph features a Clarum Homes Vista Montana development that consists of 177 single-family homes, 80 townhouses, and 132 apartments. Every home features a 1.2 to 2.4-kilowatt photovoltaic...

  7. Home Energy Score Calculation Methodology

    Energy.gov [DOE]

    A Qualified Assessor calculates the Home Energy Score by first conducting a brief walk-through of the home and collecting approximately 40 data points. Next, the Qualified Assessor uses the Home...

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

    SciTech Connect

    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.

  9. Report on HVAC option selections for a relocatable classroom energy and indoor environmental quality field study

    SciTech Connect

    Apte, Michael G.; Delp, Woody W.; Diamond, Richard C.; Hodgson, Alfred T.; Kumar, Satish; Rainer, Leo I.; Shendell, Derek G.; Sullivan, Doug P.; Fisk, William J.

    2001-10-11

    It is commonly assumed that efforts to simultaneously develop energy efficient building technologies and to improve indoor environmental quality (IEQ) are unfeasible. The primary reason for this is that IEQ improvements often require additional ventilation that is costly from an energy standpoint. It is currently thought that health and productivity in work and learning environments requires adequate, if not superior, IEQ. Despite common assumptions, opportunities do exist to design building systems that provide improvements in both energy efficiency and IEQ. This report outlines the selection of a heating, ventilation, and air conditioning (HVAC) system to be used in demonstrating such an opportunity in a field study using relocatable school classrooms. Standard classrooms use a common wall mounted heat pump HVAC system. After reviewing alternative systems, a wall-mounting indirect/direct evaporative cooling system with an integral hydronic gas heating is selected. The anticipated advantages of this system include continuous ventilation of 100 percent outside air at or above minimum standards, projected cooling energy reductions of about 70 percent, inexpensive gas heating, improved airborne particle filtration, and reduced peak load electricity use. Potential disadvantages include restricted climate regions and possible increases in indoor relative humidity levels under some conditions.

  10. Rooftop Unitary Air Conditioner with Integral Dedicated Outdoor Air System

    SciTech Connect

    Tiax Llc

    2006-02-28

    Energy use of rooftop and other unitary air-conditioners in commercial applications accounts for about 1 quad (10{sup 15} Btu) of primary energy use annually in the U.S. [Reference 7]. The realization that this cooling equipment accounts for the majority of commercial building cooled floorspace and the majority also of commercial building energy use has spurred development of improved-efficiency equipment as well as development of stricter standards addressing efficiency levels. Another key market driver affecting design of rooftop air-conditioning equipment has been concern regarding comfort and the control of humidity. Trends for increases in outdoor air ventilation rates in certain applications, and the increasing concern about indoor air quality problems associated with humidity levels and moisture in buildings points to a need for improved dehumidification capability in air-conditioning equipment of all types. In many cases addressing this issue exacerbates energy efficiency, and vice versa. The integrated dedicated outdoor air system configuration developed in this project addresses both energy and comfort/humidity issues.

  11. Home Energy Efficiency Twitter Chat

    Energy.gov [DOE]

    Did you miss our home energy efficiency Twitter Chat? We compiled the discussion so you can learn ways to save energy and money at home.

  12. Home Biodiesel | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Home Biodiesel Jump to: navigation, search Name: Home Biodiesel Place: Marysville, California Zip: 95901 Product: Manufacturer of small scale biodiesel equipment. Coordinates:...

  13. EnergySpark Home Loan

    Energy.gov [DOE]

    The Washington State Housing Finance Commission (WSHFC) is offering reduced interest rates on loans for qualified buyers of energy efficient homes. Homes must be new construction exceeding...

  14. Challenge Home Student Design Competition

    Energy.gov [DOE]

    Check out student designs of zero energy ready homes -- homes that are so efficient they can produce as much energy as the use with a renewable energy system.

  15. DOE Zero Energy Ready Home Case Study: Healthy Efficient Homes - Spirit Lake, Iowa

    SciTech Connect

    none,

    2014-11-01

    This case study describes a DOE Zero Energy Ready Home in Spirit Lake, Iowa, that scored HERS 41 without PV and HERS 28 with PV. This 3,048 ft2 custom home has advanced framed walls filled with 1.5 inches closed-cell spray foam, a vented attic with spray foam-sealed top plates and blown fiberglass over the ceiling deck. R-23 basement walls are ICF plus two 2-inch layers of EPS. The house also has a mini-split heat pump, fresh air fan intake, and a solar hot water heater.

  16. DOE Zero Energy Ready Home: Healthy Efficient Homes- Spirit Lake, Iowa

    Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in Spirit Lake, Iowa, that scored HERS 41 without PV and HERS 28 with PV. This 3,048 ft2 custom home has advanced framed walls filled with 1.5 inches closed-cell spray foam, a vented attic with spray foam-sealed top plates and blown fiberglass over the ceiling deck. R-23 basement walls are ICF plus two 2-inch layers of EPS. The house also has a mini-split heat pump, fresh air fan intake, and a solar hot water heater.

  17. DOE Zero Energy Ready Home Case Study: Near Zero Maine Home II - Vassalboro, Maine

    SciTech Connect

    none,

    2014-11-01

    This case study describes a DOE Zero Energy Ready home in Vassalboro, Maine, that scored HERS 35 without PV and HERS 11 with PV. This 1,200 ft2 home has 10.5-inch-thick double-walls with 3 layers of mineral wool batt insulation, an R-20 insulated slab, R-70 cellulose in the attic, extensive air sealing, a mini-split heat pump, an heat recovery ventilator, solar water heating, LED lighting, 3.9 kWh PV, and triple-pane windows.

  18. Building America Top Innovations 2013 Profile … High-Efficiency Window Air Conditioners

    Energy Saver

    Comprehensive performance tests lead to affordable methods for increasing the energy efficiency of window air conditioners. Window air conditioners are an inexpensive, portable form of spot cooling, making them a good solution for supplemental cooling, for air conditioning in homes that lack ductwork, and for renters. As a result, 7.5 million window air conditioners are purchased each year in the United States-more than all other home cooling equipment combined. However, window air conditioners

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

    SciTech Connect

    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.

  20. Air Quality

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Air Quality Air Quality Tour The Laboratory calculates the dose to the maximally exposed individual (MEI) to determine effects of Laboratory operations on the public.

  1. Air Quality

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Air Quality Air Quality Tour The Laboratory calculates the dose to the maximally exposed individual (MEI) to determine effects of Laboratory operations on the public.

  2. Air Quality

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Air Quality Air Quality Tour The Laboratory calculates the dose to the maximally exposed individual (MEI) to determine effects of Laboratory operations on the public. Open full...

  3. Air-Source Heat Pump Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Source Heat Pump Basics Air-Source Heat Pump Basics August 19, 2013 - 11:03am Addthis Air-source heat pumps transfer heat between the inside of a building and the outside air. How Air-Source Heat Pumps Work This diagram of a split-system heat pump heating cycle shows refrigerant circulating through a closed loop that passes through the wall of a house. Inside the house the refrigerant winds through indoor coils, with a fan blowing across them, and outside the house is another fan and another set

  4. Home Weatherization Visit

    Energy.gov [DOE]

    Secretary Steven Chu visits a home that is in the process of being weatherized in Columbus, OH, along with Ohio Governor Ted Strickland and Columbus Mayor Michael Coleman. They discuss the benefits...

  5. Home Energy Rebate Program

    Energy.gov [DOE]

    Note: The Home Energy Rebate Program is suspended effective 5 pm March 25, 2016. Applicants on the waitlist may check the status of their application online, and new participants may call 1-877-257...

  6. New Homes Program

    Energy.gov [DOE]

    In order to participate in the program, interested customers must find a New Homes builder through the Focus on Energy website and work with an accredited building performance consultant.

  7. A Homeowners Guide to Window Air Conditioner Installation for Efficiency and Comfort (Fact Sheet), Building America Case Study: Technology Solutions for Existing Homes, Building Technologies Office (BTO)

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Homeowners in the United States spend one out of every eight dollars of utility costs on cooling their living space. Window air conditioners (A/Cs) are an inexpensive alternative to central systems, and are sold in greater numbers each year than all other residential cooling systems. They are purchased to cool a specifc room and are easy for anyone to install. In contrast to these benefts, window A/Cs come at a cost-they operate less effciently (using more energy to do the same cooling) than

  8. Criegee intermediates in the indoor environment. New insights

    SciTech Connect

    Shallcross, D. E.; Taatjes, C. A.; Percival, C. J.

    2014-03-25

    Criegee intermediates are formed in the ozonolysis of alkenes and play an important role in indoor chemistry, notably as a source of OH radicals. Recent studies have shown that these Criegee intermediates react very quickly with NO2, SO2, and carbonyls, and in this study, steady-state calculations are used to inspect the potential impact of these data on indoor chemistry. It is shown that these reactions could accelerate NO3 formation and SO2 removal in the indoor environment significantly. In addition, reaction between Criegee intermediates and halogenated carbonyls could provide a significant loss process indoors, where currently one does not exist.

  9. Indoor Thermal Factors and Symptoms in Office Workers: Findings...

    Office of Scientific and Technical Information (OSTI)

    from the U.S. EPA BASE Study Citation Details In-Document Search Title: Indoor Thermal Factors and Symptoms in Office Workers: Findings from the U.S. EPA BASE Study You ...

  10. Next Generation Luminaires Design Competition Announces 2014 Indoor Winners

    Energy.gov [DOE]

    Winners in the Indoor category of the sixth annual Next Generation LuminairesTM Design Competition were announced today at The LED Show in Los Angeles. Sponsored by DOE, the Illuminating...

  11. Evaluation of Air Mixing and Thermal Comfort From High Sidewall Supply Air Jets

    SciTech Connect

    Ridouane, El Hassan

    2011-09-01

    Uniform mixing of conditioned air with room air is an essential factor for providing comfort in homes. The objective of the study outlined in this report is to resolve the issue that the flow rates that are required to meet the small remaining thermal loads are not large enough to maintain uniform mixing in the space.and maintain uniform temperatures within future homes. The results provide information to guide the selection of high sidewall supply diffusers to maintain proper room mixing for heating and cooling of high performance homes.

  12. Home Weatherization | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Science & Innovation » Energy Efficiency » Homes » Home Weatherization Home Weatherization A home energy audit is the first step to saving energy and money. Our Energy Saver 101 infographic breaks down a home energy audit, explaining what energy auditors look for and the special tools they use to determine where a home is wasting energy. Explore the <a href="/node/714616">full infographic</a> now. A home energy audit is the first step to saving energy and money. Our

  13. Air Sealing

    SciTech Connect

    2000-02-01

    This fact sheet describes ventilation and the importance of sealing air leaks and providing controlled ventilation.

  14. MHK ISDB/Sensors/Air Pressure Sensor 2810 | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    MHK ISDBSensorsAir Pressure Sensor 2810 < MHK ISDB Jump to: navigation, search MHK Instrumentation & Sensor Database Menu Home Search Add Instrument Add Sensor Add Company...

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Attic Air Sealing Guide - Building America Top Innovation Attic Air Sealing Guide - Building America Top Innovation Image showing step-by-step instructions for air sealing. One of the most effective energy measures for retrofitting homes across the United States is attic air sealing. The Building America-sponsored Guide to Attic Air Sealing provides much needed instruction essential to achieving effective energy savings while avoiding pitfalls that can lead to combustion safety and

  16. Energy Department Announces Indoor Lighting Winners of Next Generation

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Luminaires(tm) Solid-State Lighting Design Competition | Department of Energy Indoor Lighting Winners of Next Generation Luminaires(tm) Solid-State Lighting Design Competition Energy Department Announces Indoor Lighting Winners of Next Generation Luminaires(tm) Solid-State Lighting Design Competition September 17, 2014 - 5:45pm Addthis As part of the Obama Administration's efforts to reduce energy waste in U.S. buildings and help save Americans money by saving energy, the Energy Department

  17. NREL Delivers In-Home HVAC Efficiency Testing Solutions (Fact Sheet), Building America: Technical Highlight, Building Technologies Program (BTP)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Delivers In-Home HVAC Efficiency Testing Solutions Researchers at the National Renewable Energy Laboratory (NREL) have recently developed two simple in-home efficiency test methods that can be used by technicians, researchers, or interested homeowners to verify the correct opera- tion and energy efficiency of a home's air conditioning and heating equipment. An efficiency validation method for mini-split heat pumps (MSHPs)-highly efficient refrigerant-based air conditioning and heating systems

  18. DOE Zero Energy Ready Home Case Study: Green Extreme Homes & Carl Franklin

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Homes, Garland, TX | Department of Energy Green Extreme Homes & Carl Franklin Homes, Garland, TX DOE Zero Energy Ready Home Case Study: Green Extreme Homes & Carl Franklin Homes, Garland, TX DOE Zero Energy Ready Home Case Study: Green Extreme Homes & Carl Franklin Homes, Garland, TX Case study of a DOE Zero Energy Ready affordable home in Garland, TX, that was the first retrofit home certified to the DOE Zero Energy Ready home requirements. The construction team achieved a HERS

  19. Air-Source Heat Pumps | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Heat & Cool » Heat Pump Systems » Air-Source Heat Pumps Air-Source Heat Pumps An air-source heat pump can provide efficient heating and cooling for your home. When properly installed, an air-source heat pump can deliver one-and-a-half to three times more heat energy to a home than the electrical energy it consumes. This is possible because a heat pump moves heat rather than converting it from a fuel like combustion heating systems do. Air-source heat pumps have been used for many years in

  20. DOE Tour of Zero: The Illinois First Zero Energy Custom by Evolutionar...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    helps this home comply with the EPA Indoor airPLUS guidelines for a healthier indoor environment. 4 of 9 Ultra-efficient triple-pane windows include insulated vinyl frames and...

  1. Geothermal Technologies Office Home Page | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Technologies Office Home Page Geothermal Technologies Office Home Page

  2. DOE Zero Energy Ready Home Case Study: Palo Duro Homes — Palo Duro Homes, Albuquerque, NM

    SciTech Connect

    none,

    2014-09-01

    This builder was honored for Most DOE Zero Energy Ready Homes Built in the 2014 Housing Innovation Awards. By July 2014, Palo Duro had completed 152 homes since the program began in 2013 (under the original program title DOE Challenge Home), all of them certified to the stringent efficiency requirements of DOE’s Zero Energy Ready Home program.

  3. DOE Zero Energy Ready Home Case Study: TC Legend Homes, Bellingham...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    DOE Zero Energy Ready Home Case Study: TC Legend Homes, Bellingham Power House, ... DOE Zero Energy Ready Home Case Study: TC Legend Homes, Bellingham Power House, ...

  4. Healthy and Affordable Housing: Practical Recommendations for Building, Renovating and Maintaining Housing: Read This Before You Design, Build or Renovate

    SciTech Connect

    2001-09-06

    This document helps builders design, build, or renovate homes, keeping in mind the issues of asthma, health, indoor air quality, dust, and living creatures.

  5. Better Buildings Residential Network Peer Exchange Call Series...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Residential Network Group on Home Energy Pros Join to access: Peer exchange call ... for efficiency, seismic protection, solar, indoor air quality Package upgrades ...

  6. DOE Zero Energy Ready Home Case Study: Addison Homes, Cobbler Lane, Simpsonville, SC

    Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the mixed humid climate that got a HERS 41 without PV, with 2x4 16” on-center walls with 1 inch rigid foam, a sealed conditioned crawl space insulated on inside with 2 inches poly iso, a vented attic with R-38 blown fiberglass, a central heat pump with fresh air intake.

  7. DOE Zero Energy Ready Home Case Study: TC Legend Homes, Bellingham Power House, Bellingham, WA

    Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the marine climate that got HERS 34 without PV or HERS -12 with PV, with 6” SIP walls and 10” SIP roof; R-28 ICF around slab, R-20 rigid foam under slab; radiant floor heat and passive design; air-to-water heat pump COP 4.4; HRV; earth tube ventilation; triple-pane windows, 100% LED.

  8. Home Energy Audits: Making Homes More Energy Efficient and Comfortable |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Home Energy Audits: Making Homes More Energy Efficient and Comfortable Home Energy Audits: Making Homes More Energy Efficient and Comfortable March 21, 2013 - 12:00pm Q&A Have a story about improving your home's energy efficiency? Share your story with us & it could be the next one we profile on energy.gov! Share your story Addthis Learn how a home energy audit is helping Seth Budick and his family save money on their energy bills, reduce their carbon footprint

  9. HIA 2015 DOE Zero Energy Ready Home Case Study: Evolutionary Home Builders, The Adaptation Home, Geneva, IL

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Evolutionary Home Builders The Adaptation Home Geneva, IL DOE ZERO ENERGY READY HOME(tm) The U.S. Department of Energy invites home builders across the country to meet the extraordinary levels of excellence and quality specified in DOE's Zero Energy Ready Home program (formerly known as Challenge Home). Every DOE Zero Energy Ready Home starts with ENERGY STAR Certified Homes Version 3.0 for an energy-efficient home built on a solid foundation of building science research. Advanced technologies

  10. Early Oak Ridge Home | Y-12 National Security Complex

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Home Early Oak Ridge Home A typical dwelling predating the Manhattan Project homes

  11. Building America Technology Solutions for New and Existing Homes: Retrofit

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Integrated Space and Water Heating-Field Assessment | Department of Energy Retrofit Integrated Space and Water Heating-Field Assessment Building America Technology Solutions for New and Existing Homes: Retrofit Integrated Space and Water Heating-Field Assessment In this project, the NorthernSTAR team analyzed combined (combi) condensing water heaters or boilers and hydronic air coils to provide high efficiency domestic hot water and forced air space heating. Retrofit Integrated Space and

  12. Building America Whole-House Solutions for Existing Homes: Inverted Attic

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Bulkhead for HVAC Ductwork | Department of Energy Inverted Attic Bulkhead for HVAC Ductwork Building America Whole-House Solutions for Existing Homes: Inverted Attic Bulkhead for HVAC Ductwork This occupied test home received a modified truss system to accommodate ductwork within an inverted insulated bulkhead along the attic floor, which saves energy by placing heating, ventilating, and air-conditioning (HVAC) ductwork within the home's thermal boundary. Inverted Attic Bulkhead for HVAC

  13. Mountain Home Well - Photos

    DOE Data Explorer

    Shervais, John

    2012-01-11

    The Snake River Plain (SRP), Idaho, hosts potential geothermal resources due to elevated groundwater temperatures associated with the thermal anomaly Yellowstone-Snake River hotspot. Project HOTSPOT has coordinated international institutions and organizations to understand subsurface stratigraphy and assess geothermal potential. Over 5.9km of core were drilled from three boreholes within the SRP in an attempt to acquire continuous core documenting the volcanic and sedimentary record of the hotspot: (1) Kimama, (2) Kimberly, and (3) Mountain Home. The Mountain Home drill hole is located along the western plain and documents older basalts overlain by sediment. Data submitted by project collaborator Doug Schmitt, University of Alberta

  14. Mountain Home Well - Photos

    DOE Data Explorer

    Shervais, John

    The Snake River Plain (SRP), Idaho, hosts potential geothermal resources due to elevated groundwater temperatures associated with the thermal anomaly Yellowstone-Snake River hotspot. Project HOTSPOT has coordinated international institutions and organizations to understand subsurface stratigraphy and assess geothermal potential. Over 5.9km of core were drilled from three boreholes within the SRP in an attempt to acquire continuous core documenting the volcanic and sedimentary record of the hotspot: (1) Kimama, (2) Kimberly, and (3) Mountain Home. The Mountain Home drill hole is located along the western plain and documents older basalts overlain by sediment. Data submitted by project collaborator Doug Schmitt, University of Alberta

  15. DOE Challenge Home Verification

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    DOE Challenge Home Verification Projected Rating: Based on Plans - Field Confirmation Required. Energy Performance House Ty pe DOE Challenge Home Builder Partner ID# Single-family det ac hed 12345 Y ear built Square footage of Conditioned Space including Basement 2013 3968.0 Numbe r of Bedrooms Square footage of Conditioned Space without Basement 4 2368.0 Site addre ss (if no t available , list the site Lo t #) Registered Builder 555 Main St r eet Cold City Certified Rater MN, 20853 HERS Index

  16. DOE Tour of Zero: The 2016 New American Home by Element Design...

    Energy Saver

    provide endless hot water. 16 of 20 The home's heating and cooling comfort system consists of air source heat pumps with a cooling efficiency of 19 SEER, far above the minimum ...

  17. DOE Tour of Zero: McCormick Avenue by BrightLeaf Homes | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    trusses that provide space for a full 16 inches (R-60) of loose blown cellulose ... The home's high-efficiency comfort system includes a 96% AFUE gas furnace and 14 SEER air ...

  18. What do the DOE Zero Energy Ready Home Program Specs Actually...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... conditioners, air-source heat pumps, and water-source (i.e., geothermal) heat pumps up to ... In other words, under Revision 07, if a home's heatingcooling system happens to be a ...

  19. Spruce Up Your Home for Spring and Summer | Department of Energy

    Energy.gov [DOE] (indexed site)

    Getting your home ready for warmer temperatures can help you save money and energy all ... TLC. Maintaining your air conditioner will save you money by extending the unit's life. ...

  20. Cozy Up to Colder Weather: 5 More Ways to Prepare Your Home for...

    Office of Environmental Management (EM)

    you can ready your home for colder weather and save money and energy in the process. ... for fall and winter now can save you money and a headache when the cold air descends. ...

  1. New Whole-House Solutions Case Study: Pulte Homes, Las Vegas, Nevada

    SciTech Connect

    none,

    2013-09-01

    The builder teamed with Building Science Corporation to design HERS-54 homes with high-efficiency HVAC with ducts in conditioned space, jump ducts, and a fresh air intake; advanced framed walls; low-e windows; and PV roof tiles.

  2. Building America Whole-House Solutions for New Homes: CDC Realty Inc., Tucson, Arizona

    Energy.gov [DOE]

    Case study of CDC Realty Inc. who worked with Building America research partner Building Science Corporation to design HERS-54 homes with ducts in insulated attics, solar water heating, tight air sealing, and rigid foam exterior sheathing.

  3. Imagine Homes New Construction Occupied Test House

    SciTech Connect

    Stecher, Dave; Rapport, Ari; Allison, Katherine

    2013-07-01

    This report summarizes the research findings of a long-term monitoring plan to evaluate the performance of an energy-efficient home constructed in 2010 in San Antonio, Texas. Monitoring of the energy use, energy generation, and temperature conditions for this project occurred between July 2010 and October 2011. The home achieves a source energy savings of 32% without the installed photovoltaic (PV) system and 44% savings with the PV system contribution relative to the Building America House Simulation Protocols. This report summarizes the research findings related to heating, ventilation, and air conditioning system performance, estimated and actual energy use of key subsystems, electricity generation by the PV system, and performance of the solar thermal domestic hot water system.

  4. DOE Zero Energy Ready Home Case Study: Clifton View Homes, Marine Drive and Port Hadlcok, Coupeville and Port Hadlock WA

    Energy.gov [DOE]

    Case study of two DOE 2015 Housing Innovation Award winning custom homes in the marine climate that got HERS 39 and 38 without PV or HERS 2-12 and -9 with PV, with 6.5” SIP walls and 10.25” SIP roof; 11.75 ICF around slab, R-20 rigid foam under slab; radiant floor heat and passive design; air-to-water heatpump, fresh air intake with fan, triple-pane windows, 100% LED.

  5. Builders Challenge High Performance Builder Spotlight: David Weekley Homes, Houston, Texas

    SciTech Connect

    2009-12-22

    Building America Builders Challenge fact sheet on David Weekley Homes of Houston, Texas. The builder plans homes as a "system," with features such as wood-framed walls that are air-sealed then insulated with R-13 unfaced fiberglass batts plus an external covering of R-2 polyisocyanurate rigid foam sheathing.

  6. Best Practices Case Study: Imagine Homes - Stillwater Ranch, San Antonio, TX

    SciTech Connect

    none,

    2011-04-01

    This case study describes Imagine Homes, who met Builders Challenge criteria on more than 200 homes in San Antonio with rigid foam exterior sheathing, ducts and air handler in conditioned space in a spray-foam insulated attic, and high-efficiency HVAC, windows, and appliances.

  7. Systems Engineering Saves Energy in Southwest, Pulte Homes--Tucson, Arizona

    SciTech Connect

    2002-02-01

    Houses being built in Tucson, Arizona, by Pulte Homes are part of the U.S. Department of Energy Building America program. These homes reduce electric air-conditioning bill and gas-heating bills by 30-50% relative to the 1995 Model Energy Code.

  8. State-of-the-Art Building Concepts Lower Energy Bills, Pulte Homes - Las Vegas, Nevada

    SciTech Connect

    2002-03-01

    Houses built by Pulte Homes as part of the U.S. Department of Energy's Building America program in Las Vegas, Nevada, save money for the home owners by reducing electric air-conditioning costs and gas heating costs with little or no additional inv

  9. Energy-Efficient New Homes Tax Credit for Home Builders

    Energy.gov [DOE]

    The federal Energy Policy Act of 2005 established tax credits of up to $2,000 for builders of all new energy-efficient homes, including manufactured homes constructed in accordance with the Feder...

  10. DOE Zero Energy Ready Home Case Study: Southern Energy Homes...

    Energy.gov [DOE] (indexed site)

    Case study of the first manufactured home built to the DOE Zero Energy Ready Home standard... standards and another built to the builder's standard, which is slightly above HUD code. ...

  11. Enhance Your Home Inspection Business with the Home Energy Score...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    To learn more about how to score homes, please join us for the following webinar sponsored by DOE. Joan Glickman, DOE's Home Energy Score program manager, will describe the basics ...

  12. DOE Zero Energy Ready Home Case Study: Amaris Homes, Fishers...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    around slab, a vented attic with with 2" ccsf plus R-15 blown cellulose, a central heat pump and HRV. PDF icon DOE Zero Energy Ready Home Case Study: Amaris Homes, Vadnais ...

  13. DOE Challenge Home Case Study, Clifton View Homes, Coupeville...

    Energy Saver

    Clifton, founder of Clifton View Homes, achieved an impressive Home Energy Rating System (HERS) score of 34 (without solar panels) on a two-story structure completed in July 2011 ...

  14. Colorado Kicks Off Home Energy Score Program to Benefit Home...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... To become a Home Energy Assessor, individuals take free online training and must pass an online test. More than 20 individual Home Energy Assessors are ready to go in Colorado. ...

  15. 5 Quick Ways to Save Energy on Home Cooling | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Quick Ways to Save Energy on Home Cooling 5 Quick Ways to Save Energy on Home Cooling July 21, 2016 - 1:19pm Addthis Paul Lester Paul Lester Digital Content Specialist, Office of Public Affairs It's hot out there! With temperatures reaching nearly triple digits in many parts of the country, air conditioning systems are working extra hard to keep you cool. While air conditioners provide comfort, they also use a lot of power. The Energy Information Administration estimates cooling accounts for

  16. A Home Cooling Strategy for Lower Energy Bills | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    A Home Cooling Strategy for Lower Energy Bills A Home Cooling Strategy for Lower Energy Bills June 18, 2015 - 9:58am Addthis Proper maintenance can help keep your air conditioner running efficiently and prolong the life of the unit. | Photo courtesy of istockphoto.com/Spiderstock Proper maintenance can help keep your air conditioner running efficiently and prolong the life of the unit. | Photo courtesy of istockphoto.com/Spiderstock Allison Casey Senior Communicator, NREL What does this mean for

  17. Solar Home Energy | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Home Energy Jump to: navigation, search Name: Solar Home Energy Place: Bournemouth, United Kingdom Sector: Renewable Energy, Solar Product: Solar Home Energy is one of the...

  18. Mountain Home Wind Farm | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Mountain Home Wind Farm Jump to: navigation, search Name Mountain Home Wind Farm Facility Mountain Home Sector Wind energy Facility Type Commercial Scale Wind Facility Status In...

  19. K. Hovnanian Homes | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    K. Hovnanian Homes Jump to: navigation, search Name: K. Hovnanian Homes Place: Red Bank, NJ Website: www.khov.com References: K. Hovnanian Homes1 Information About Partnership...

  20. Home Weatherization Visit

    ScienceCinema

    Chu, Steven

    2016-07-12

    Secretary Steven Chu visits a home that is in the process of being weatherized in Columbus, OH, along with Ohio Governor Ted Strickland and Columbus Mayor Michael Coleman. They discuss the benefits of weatherization and how funding from the recovery act is having a direct impact in communities across America.

  1. Helms Research Group - Home

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Helms Group Home Research Members Publications Collaborations Connect Physical Organic Materials Chemistry Our research is devoted to understanding transport phenomena in mesostructured systems assembled from organic, organometallic, polymeric and nanocrystalline components. Enhanced capabilities relevant to energy, health, water, and food quality are enabled by our unique approaches to the modular design of their architectures and interfaces.

  2. Home Automation Interoperability

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Consumer Electronics Association Home Automation Interoperability CE.org Using XML to Standardize Device Descriptions Bill Rose President, WJR Consulting, Inc. brose@wjrconsulting.com Consumer Electronics Association * 2,000 consumer technology member companies * Provides valuable and innovative members-only resources: * Market Research, educational programs and training * Networking opportunities with business advocates and leaders * Extensive promotional programs, and representation * Develops

  3. 2017 Home Performance Council National Home Performance Conference and

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Trade Show | Department of Energy Council National Home Performance Conference and Trade Show 2017 Home Performance Council National Home Performance Conference and Trade Show March 19, 2017 9:00AM EDT to March 22, 2017 5:00PM EDT Nashville, Tennessee

  4. CEC- New Solar Homes Partnership

    Energy.gov [DOE]

    Launched on January 2, 2007, the New Solar Homes Partnership (NSHP) is a 10-year, $400 million program to encourage solar in new homes by working with builders and developers to incorporate into ...

  5. Solar Home in Sacramento, California

    Office of Energy Efficiency and Renewable Energy (EERE)

    This photograph features houses in this Premier Homes development, near Sacramento, that has a 2.2-kilowatt building integrated photovoltaic (BIPV) system manufactured by GE Energy. The homes...

  6. Energy 101: Home Energy Assessment

    Energy.gov [DOE]

    A home energy checkup helps owners determine where their house is losing energy, money and how such problems can be corrected to make the home more energy efficient. A professional technician,...

  7. SCE- California Advanced Homes Incentives

    Energy.gov [DOE]

    Southern California Edison offers an incentive for home builders to build homes which exceed 2008 Title 24 standards by 15%. The program is open to all single-family and multi-family new...

  8. Air filter

    SciTech Connect

    Jackson, R.E.; Sparks, J.E.

    1981-03-03

    An air filter is described that has a counter rotating drum, i.e., the rotation of the drum is opposite the tangential intake of air. The intake air has about 1 lb of rock wool fibers per 107 cu. ft. of air sometimes at about 100% relative humidity. The fibers are doffed from the drum by suction nozzle which are adjacent to the drum at the bottom of the filter housing. The drum screen is cleaned by periodically jetting hot dry air at 120 psig through the screen into the suction nozzles.

  9. Air-Source Heat Pumps | Department of Energy

    Energy.gov [DOE] (indexed site)

    When properly installed, an air-source heat pump can deliver one-and-a-half to three times more heat energy to a home than the electrical energy it consumes. | Photo courtesy of...

  10. Home Heating | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Heating Home Heating Energy Saver 101 Infographic: Home Heating Energy Saver 101 Infographic: Home Heating Everything you need to know about home heating, including how heating systems work, the different types on the market and proper maintenance. Read more Thermostats Thermostats Save money on heating by automatically setting back your thermostat when you are asleep or away. Read more Wood and Pellet Heating Wood and Pellet Heating Wood and pellets are renewable fuel sources, and modern wood

  11. Guide to Home Energy Assessments

    SciTech Connect

    2011-02-01

    A proper home energy assessment (also called a home energy audit) will tell you how much energy you use in your house, the most cost-effective measures you can take to improve the energy efficiency of your home, and how to save money on energy bills.

  12. The New American Home 2011

    SciTech Connect

    2010-12-01

    The New American Home® is built annually as a showcase home for the International Builders’ Show® to demonstrate innovative technologies, construction techniques, products, and design trends for the homebuilding industry to use in any new or remodeled home.

  13. DOE Zero Energy Ready Home Case Study: KB Home, Lancaster, CA...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Dorado Hill, CA DOE Zero Energy Ready Home Case Study: KB Home, San Marcos, CA, Production Home DOE Zero Energy Ready Home Case Study: Palo Duro Homes, Via del Cielo, Santa Fe, NM

  14. DOE Zero Energy Ready Home Case Study: TC Legend Homes, Bellingham...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    TC Legend Homes, Bellingham, WA DOE Zero Energy Ready Home Case Study: TC Legend Homes, Bellingham, WA DOE Zero Energy Ready Home Case Study: TC Legend Homes, Bellingham, WA Case ...

  15. DOE Tour of Zero Floorplans: Invision Zero Home by Addison Homes |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Invision Zero Home by Addison Homes DOE Tour of Zero Floorplans: Invision Zero Home by Addison Homes DOE Tour of Zero Floorplans: Invision Zero Home by Addison

  16. DOE Zero Energy Ready Home Case Study: One Sky Homes, San Jose...

    Energy Saver

    One Sky Homes, San Jose, CA DOE Zero Energy Ready Home Case Study: One Sky Homes, San Jose, CA DOE Zero Energy Ready Home Case Study: One Sky Homes, San Jose, CA Case study of a...

  17. DOE Zero Energy Ready Home Case Study: One Sky Homes, San Jose...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    One Sky Homes, San Jose, CA DOE Zero Energy Ready Home Case Study: One Sky Homes, San Jose, CA DOE Zero Energy Ready Home Case Study: One Sky Homes, San Jose, CA Case study of a ...

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

    SciTech Connect

    Fisk, William; Fisk, William J.

    2007-08-01

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

  19. Sorbent-Based Gas Phase Air Cleaning for VOCs in CommercialBuildings

    SciTech Connect

    Fisk, William J.

    2006-05-01

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

  20. #AskEnergySaver: Air Sealing | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Air Sealing #AskEnergySaver: Air Sealing December 18, 2014 - 4:47pm Addthis This month our expert answered your #AskEnergySaver questions about air sealing. | Image courtesy of Sarah Gerrity. This month our expert answered your #AskEnergySaver questions about air sealing. | Image courtesy of Sarah Gerrity. Allison Lantero Allison Lantero Digital Content Specialist, Office of Public Affairs Looking for more ways to save energy? Take a look at our home heating infographic for all things home

  1. Home Energy Score FAQs for Homeowners

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... However, additional information about the home and the home- owner's behavior can be added in through a consumer tool called "Home Energy Saver." Visit the Home Energy Saver site ...

  2. Building America Whole-House Solutions for New Homes: Winchester Homes and

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Camberley Homes | Department of Energy Whole-House Solutions for New Homes: Winchester Homes and Camberley Homes Building America Whole-House Solutions for New Homes: Winchester Homes and Camberley Homes In this project, Winchester/Camberley Homes worked with Partnership for Home Innovation team to develop and test a new set of high performance homes designs and techniques that could be applied on a production scale, including advanced framing and materials and innovative work scopes. The

  3. DOE Zero Energy Ready Home Case Study: Evolutionary Home Builders, The

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Adaptation Home, Geneva, IL | Department of Energy Evolutionary Home Builders, The Adaptation Home, Geneva, IL DOE Zero Energy Ready Home Case Study: Evolutionary Home Builders, The Adaptation Home, Geneva, IL DOE Zero Energy Ready Home Case Study: Evolutionary Home Builders, The Adaptation Home, Geneva, IL Case study of a DOE 2015 Housing Innovation Award winning custom home in the cold climate that got a HERS 30 without PV, with 2x8 24" on center walls with blown fiberglass and

  4. Insulation and Air Sealing Products and Services | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Insulation and Air Sealing Products and Services Insulation and Air Sealing Products and Services Insulation and Air Sealing Products and Services Use the following links to get product information and locate professional services for insulation and air sealing. Product Information Concrete Masonry Units Concrete Homes-Portland Cement Association Describes construction methods that use concrete block systems EPS Industry Alliance Information on expanded polystyrene manufacturing, use, and

  5. Indoor and Outdoor Spectroradiometer Intercomparison for Spectral Irradiance Measurement

    SciTech Connect

    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.

  6. Renewable Energy Ready Home Solar Photovoltaic Specifications...

    Energy Saver

    Renewable Energy Ready Home Solar Photovoltaic Specifications Renewable Energy Ready Home Solar Photovoltaic Specifications Solar Photovoltaic Specification, Checklist and Guide, ...

  7. Chronic respiratory effects of indoor formaldehyde exposure

    SciTech Connect

    Krzyzanowski, M.; Quackenboss, J.J.; Lebowitz, M.D.

    1990-01-01

    The relation of chronic respiratory symptoms and pulmonary function to formaldehyde (HCHO) in homes was studied in a sample of 298 children (6-15 years of age) and 613 adults. HCHO measurements were made with passive samplers two one-week periods. Data on chronic cough and phlegm, wheeze, attacks of breathlessness, and doctor diagnoses of chronic bronchitis and asthma were collected with self-completed questionnaires. Peak expiratory flow rates (PEFR) were obtained during the evenings and mornings for up to 14 consecutive days for each individual. Significantly greater prevalence rates of asthma and chronic bronchitis were found in children from houses with HCHO levels 60-120 ppb than in those less exposed, especially in children also exposed to environmental tobacco smoke. In children, levels of PEFR linearly decreased with HCHO exposure, with estimated decrease due to 60 ppb of HCHO equivalent to 22% of PEFR level in nonexposed children.

  8. Home | ScienceCinema

    U.S. Department of Energy (DOE) - all webpages

    SCIENCECINEMA Toggle Navigation Home About ScienceCinema FAQ Contact Us ScienceCinema Database Searchable Videos Showcasing DOE Research Search DOE ScienceCinema for Multimedia Find + Fielded Search Audio Search × Fielded Search Title: Description/Abstract: Bibliographic Data: Author/Speaker: Name Name ORCID Media Type: All Audio Video Subject: Identifier Numbers: Media Source: All DOE CERN Research Org.: Sponsoring Org.: Publication Date: Publication Date Until to System Entry Date:

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

    SciTech Connect

    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.

  10. Manufactured Homes Tool

    Energy Science and Technology Software Center

    2005-03-09

    The MH Tool software is designed to evaluate existing and new manufactured homes for structural adequacy in high winds. Users define design elements of a manufactured home and then select the hazard(s) for analysis. MH Tool then calculates and reports structural analysis results for the specified design and hazard Method of Solution: Design engineers input information (geometries, materials, etc.) describing the structure of a manufactured home, from which the software automatically creates a mathematical model.more » Windows, doors, and interior walls can be added to the initial design. HUD Code loads (wind, snow loads, interior live loads, etc.) are automatically applied. A finite element analysis is automatically performed using a third party solver to find forces and stresses throughout the structure. The designer may then employ components of strength (and cost) most appropriate for the loads that must be carried at each location, and then re-run the analysis for verification. If forces and stresses are still within tolerable limits (such as the HUD requirements), construction costs would be reduced without sacrificing quality.« less

  11. air force

    National Nuclear Security Administration (NNSA)

    en NNSA, Air Force Complete Successful B61-12 Life Extension Program Development Flight Test at Tonopah Test Range http:nnsa.energy.govmediaroompressreleases...

  12. DOE Zero Energy Ready Home Case Study: Sunroc Builders, Bates Avenue, Lakeland, FL

    Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning affordable home in the hot-humid climate that got HERS 57 without PV, with 6.5” SIP walls and 8.25” SIP roof; uninsulated slab foundation; fresh air intake; SEER 16 ducted air source heat pump.

  13. Building America Whole-House Solutions for New Homes: Pine Mountain Builders, Pine Mountain, Georgia

    Energy.gov [DOE]

    Case study of Pine Mountain Builders who worked with Building America research partners IBACOS and Southface Energy Institute to design HERS-59 homes with air-tight 1.0-1.8 ACH50 construction, spray-foamed walls and attics, and high-efficiency heat pumps with fresh-air intake.

  14. Earth-sheltered compromise home saves on heating, cooling costs

    SciTech Connect

    Frankhauser, T.

    1985-02-01

    Building a home into the side of a hill to take advantage of the earth's temperature-neutralizing qualities and facing it to the south will reduce heating and cooling costs. A home in North Dakota based on these principles has never had two unheated rooms freeze and needs no air conditioning. Mutli-zoned thermostats are located in the south-facing rooms. Other features are a five-foot overhang, lower ceilings, aluminum foil deflectors beneath carpets and above the plasterboard in the ceiling, and extra insulation. By eliminating an earth covering that would require sturdier support, construction costs were competitive with regular frame construction.

  15. Where to Insulate in a Home | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Insulation » Where to Insulate in a Home Where to Insulate in a Home Examples of where to insulate. 1. In unfinished attic spaces, insulate between and over the floor joists to seal off living spaces below. If the air distribution is in the attic space, then consider insulating the rafters to move the distribution into the conditioned space. (1A) attic access door 2. In finished attic rooms with or without dormer, insulate (2A) between the studs of "knee" walls, (2B) between the studs

  16. Building America Efficient Solutions for Existing Homes Case Study: Habitat

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    for Humanity of Palm Beach County, Lake Worth, Florida | Department of Energy Habitat for Humanity of Palm Beach County, Lake Worth, Florida Building America Efficient Solutions for Existing Homes Case Study: Habitat for Humanity of Palm Beach County, Lake Worth, Florida PNNL and Florida Solar Energy Center worked with Habitat for Humanity of Palm Beach County to upgrade an empty 1996 home with a 14.5 SEER AC, heat pump water heater, CFLs, more attic insulation, and air sealing to cut

  17. Ventilation | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Weatherize » Ventilation Ventilation This ventilation system in a tight, energy-efficient home ensures good indoor air quality. | Photo courtesy of ©iStockphoto.com/brebca. This ventilation system in a tight, energy-efficient home ensures good indoor air quality. | Photo courtesy of ©iStockphoto.com/brebca. Ventilation is very important in an energy-efficient home. Air sealing techniques can reduce air leakage to the point that contaminants with known health effects such as formaldehyde,

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

    SciTech Connect

    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.

  19. Building America Whole-House Solutions for New Homes: Winchester Homes and

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Camberly Homes - Silver Spring, Maryland (Fact Sheet) | Department of Energy Building America Whole-House Solutions for New Homes: Winchester Homes and Camberly Homes - Silver Spring, Maryland (Fact Sheet) Building America Whole-House Solutions for New Homes: Winchester Homes and Camberly Homes - Silver Spring, Maryland (Fact Sheet) The Partnership for Home Innovation team worked with the builder to develop a new set of high performance home designs-including advanced wall and HVAC

  20. Building America Whole-House Solutions for New Homes: Meeting DOE Challenge Homes Program Certification

    Energy.gov [DOE]

    Three production home builders—K. Hovnanian Homes, David Weekley Homes, and Transformations, Inc.—partnered with Building America team Building Science Corporation to evaluate the certification of five test homes to the new DOE Challenge Home program performance standard (now DOE Zero Energy Ready Home program). The builders identified key benefits and barriers that impacted the certification of the test homes, and the likelihood of whether DOE Challenge Home certification would be pursued in future homes.