Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Evaluation of phase change materials for improving thermal comfort in a super-insulated residential building
https://orcid.org/0000-0003-1720-8214
Highlights Phase change materials can significantly reduce thermal discomfort in buildings. Location and melt temperature of phase change materials affect performance. Occupant behavior plays an important role in affecting passive house performance.
Abstract The demand for high performance buildings is on the rise. As a result, several new building standards have emerged including the Passive House Standard, a rigorous energy-use standard based on a super-insulated and very tightly sealed building envelope. A common challenge with passive house designs is that they tend to overheat. This study explores the use of phase change materials (PCMs), which store heat as they melt and release heat as the solidify, to reduce the number of overheated hours and improve thermal comfort for a case study passive house duplex located in Portland, Oregon, USA. In this study, a newly constructed passive house duplex was thoroughly instrumented to monitor indoor environmental quality metrics and building energy use. One unit of the duplex was outfitted with 130kg of PCM while the other unit served as a control. The performance of the PCM was evaluated through analysis of observed data and through additional computer simulation using an EnergyPlus whole-building energy simulation model validated with observed data. The study found that installation of the PCM had a positive effect on thermal comfort, reducing the estimated annual overheated hours from about 400 to 200.
Evaluation of phase change materials for improving thermal comfort in a super-insulated residential building
https://orcid.org/0000-0003-1720-8214
Highlights Phase change materials can significantly reduce thermal discomfort in buildings. Location and melt temperature of phase change materials affect performance. Occupant behavior plays an important role in affecting passive house performance.
Abstract The demand for high performance buildings is on the rise. As a result, several new building standards have emerged including the Passive House Standard, a rigorous energy-use standard based on a super-insulated and very tightly sealed building envelope. A common challenge with passive house designs is that they tend to overheat. This study explores the use of phase change materials (PCMs), which store heat as they melt and release heat as the solidify, to reduce the number of overheated hours and improve thermal comfort for a case study passive house duplex located in Portland, Oregon, USA. In this study, a newly constructed passive house duplex was thoroughly instrumented to monitor indoor environmental quality metrics and building energy use. One unit of the duplex was outfitted with 130kg of PCM while the other unit served as a control. The performance of the PCM was evaluated through analysis of observed data and through additional computer simulation using an EnergyPlus whole-building energy simulation model validated with observed data. The study found that installation of the PCM had a positive effect on thermal comfort, reducing the estimated annual overheated hours from about 400 to 200.
Evaluation of phase change materials for improving thermal comfort in a super-insulated residential building
https://orcid.org/0000-0003-1720-8214
Highlights Phase change materials can significantly reduce thermal discomfort in buildings. Location and melt temperature of phase change materials affect performance. Occupant behavior plays an important role in affecting passive house performance.
Abstract The demand for high performance buildings is on the rise. As a result, several new building standards have emerged including the Passive House Standard, a rigorous energy-use standard based on a super-insulated and very tightly sealed building envelope. A common challenge with passive house designs is that they tend to overheat. This study explores the use of phase change materials (PCMs), which store heat as they melt and release heat as the solidify, to reduce the number of overheated hours and improve thermal comfort for a case study passive house duplex located in Portland, Oregon, USA. In this study, a newly constructed passive house duplex was thoroughly instrumented to monitor indoor environmental quality metrics and building energy use. One unit of the duplex was outfitted with 130kg of PCM while the other unit served as a control. The performance of the PCM was evaluated through analysis of observed data and through additional computer simulation using an EnergyPlus whole-building energy simulation model validated with observed data. The study found that installation of the PCM had a positive effect on thermal comfort, reducing the estimated annual overheated hours from about 400 to 200.
Evaluation of phase change materials for improving thermal comfort in a super-insulated residential building
Sage-Lauck, J.S. (Autor:in) / Sailor, D.J. (Autor:in)
Energy and Buildings ; 79 ; 32-40
16.04.2014
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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