A Life Cycle Energy Perspective on the Passive House Concept

摘要：

When low-energy houses are being built the focus is often to minimize the final (purchased)energy in the operation phase.However,the primary energy is more relevant when evaluating buildings from an environmental perspective.As the energy for operation decreases,the relative importance of the other life cycle phases increases and influences an optimization aiming at minimizing the life-cycle energy use.We have studied the primary energy use for production and operation of four types of buildings,when using different types of energy supply systems for the heating.We show that a house from the 1970s after refurbishment and change of heating supply system had about the same primary energy use as a so-called passive house.The CO2 emissions were 64% lower,when a biomass-based heating system was used.We also illustrate the higher relative importance of the production phase for a building with low energy demand and efficient heat supply systems for operation.

关键词： Supply Demand Passive Energy efficiency

作者: Anna Joelsson Leif Gustavsson

作者单位: Ecotechnology,Mid Sweden University,(O)stersund,Sweden

会议类型: 国际会议

会议名称: The First International Conference on Building Energy and Environment(第一届建筑能源与环境国际会议)

会议地点: 大连

会议语种:英文

页码: 549-556

在线出版日期: 2008-07-01（万方平台首次上网日期，不代表论文的发表时间）