Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Energy impacts of envelope tightening and mechanical ventilation for the U.S. residential sector
Highlights Housing stock compliance with ASHRAE 62.2 would increase annual site energy demand by less than 1%. WAPs and non-WAP retrofit programs could reduce stock site energy demand by 0.7quads (0.74 EJ) annually. Improving tightening methods could double the tightening related energy impact of retrofits. IECC 2012 standard seems to capture most of the energy savings of the tightness standards explored.
Abstract Effective residential envelope air sealing reduces infiltration and associated energy costs for thermal conditioning, yet often creates a need for mechanical ventilation to protect indoor air quality. This study estimated the potential energy savings of implementing airtightness improvements or absolute standards along with mechanical ventilation throughout the U.S. housing stock. We used a physics-based modeling framework to simulate the impact of envelope tightening, providing mechanical ventilation as needed. There are 113 million homes in the US. We calculated the change in energy demand for each home in a nationally representative sample of 50,000 virtual homes developed from the 2009 Residential Energy Consumption Survey. Ventilation was provided as required by 2010 and proposed 2013 versions of ASHRAE Standard 62.2. Ensuring that all current homes comply with 62.2-2010 would increase residential site energy demand by 0.07quads (0.07 exajoules (EJ)) annually. Improving airtightness of all homes at current average retrofit performance levels would decrease demand by 0.7quads (0.74 EJ) annually and upgrading all homes to be as airtight as the top 10% of similar homes would double the savings, leading to roughly $22 billion in annual savings in energy bills. We also analyzed the potential benefits of bringing the entire stock to airtightness specifications of IECC 2012, Canada's R2000, and passive house standards.
Energy impacts of envelope tightening and mechanical ventilation for the U.S. residential sector
Highlights Housing stock compliance with ASHRAE 62.2 would increase annual site energy demand by less than 1%. WAPs and non-WAP retrofit programs could reduce stock site energy demand by 0.7quads (0.74 EJ) annually. Improving tightening methods could double the tightening related energy impact of retrofits. IECC 2012 standard seems to capture most of the energy savings of the tightness standards explored.
Abstract Effective residential envelope air sealing reduces infiltration and associated energy costs for thermal conditioning, yet often creates a need for mechanical ventilation to protect indoor air quality. This study estimated the potential energy savings of implementing airtightness improvements or absolute standards along with mechanical ventilation throughout the U.S. housing stock. We used a physics-based modeling framework to simulate the impact of envelope tightening, providing mechanical ventilation as needed. There are 113 million homes in the US. We calculated the change in energy demand for each home in a nationally representative sample of 50,000 virtual homes developed from the 2009 Residential Energy Consumption Survey. Ventilation was provided as required by 2010 and proposed 2013 versions of ASHRAE Standard 62.2. Ensuring that all current homes comply with 62.2-2010 would increase residential site energy demand by 0.07quads (0.07 exajoules (EJ)) annually. Improving airtightness of all homes at current average retrofit performance levels would decrease demand by 0.7quads (0.74 EJ) annually and upgrading all homes to be as airtight as the top 10% of similar homes would double the savings, leading to roughly $22 billion in annual savings in energy bills. We also analyzed the potential benefits of bringing the entire stock to airtightness specifications of IECC 2012, Canada's R2000, and passive house standards.
Energy impacts of envelope tightening and mechanical ventilation for the U.S. residential sector
Logue, J.M. (Autor:in) / Sherman, M.H. (Autor:in) / Walker, I.S. (Autor:in) / Singer, B.C. (Autor:in)
Energy and Buildings ; 65 ; 281-291
10.06.2013
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
HVAC , Weatherization , ASHRAE 62.2 , Retrofit , WAP , Energy bills
Energy impacts of envelope tightening and mechanical ventilation for the U.S. residential sector
| Online Contents | 2013
Residential balanced ventilation and its impacts on indoor pressure, ventilation and IAQ
| BASE | 2019
Residential Ventilation and Energy Characteristics
| British Library Online Contents | 1997
Residential Ventilation and Energy Characteristics
| British Library Conference Proceedings | 1997