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Maximum Residential Energy Efficiency: Performance Results from Long-Term Monitoring of a Passive House 最大住宅能源效率:被动房屋长期监测的性能结果
被动住宅(被动住宅)的能源性能标准在美国越来越受欢迎,作为建筑师和建筑商的一个目标,以实现能耗非常低的建筑(15 kWh/m2年热供暖或制冷,120 kWh/m2年全屋能源)。尽管从欧洲建造的建筑中收集了大量性能数据,但在美国,很少有人收集到详细的能耗和完工被动房屋的居住舒适性特征。本研究中的房屋是按照被动房屋标准设计和建造的,包括一个气密、超级隔热的隔热外壳和主要朝南的窗户,带有经过计算的悬挑和网格,以在夏季提供遮阳,并在冬季最大限度地增加太阳能增益。 单点微型分体式热泵和电阻加热器提供空间调节,平衡能量回收通风机(ERV)提供通风。该房屋对所有主要电路、每个房间的温度和湿度测量、生活热水消耗量以及ERV的回收效率进行了广泛的子计量。这项为期两年的研究的主要目标是记录每个子计量区域内房屋的能量性能,并与模型预测进行比较,并评估单点微型分体式热泵的热舒适性能。本文将讨论研究中发现的几个性能特征。引文:伊利诺伊州芝加哥ASHRAE会议论文
The Passive House (Passivhaus) Standard of energy performance is gaining popularity in the United States as a goal for architects and builders to achieve buildings with very low energy consumption (15 kWh/m2yr thermal heating or cooling, 120 kWh/m2yr whole house source energy). Although there are extensive performance data gathered from buildings constructed in Europe, very little has been collected in the United States toassess the detailed energy consumption and occupant comfort characteristics of completed Passive Houses. The house in this study was designed and built to the Passive House Standard incorporating an airtight, super-insulated thermal enclosure and predominantly southern facing windows with calculated overhangs and trellises to provide shading during the summer and maximized solar gain during the winter. A single point mini-splitheat pump and electric resistance heaters provide space conditioning, and a balanced energy recovery ventilator (ERV) provides ventilation. The house was extensively instrumented with sub-metering on all major electrical circuits, temperature and humidity measurements in each room, domestic hot water consumption, and recovery efficiency of the ERV. The primary goals of this two-year study were to document the energyperformance of the house in each sub-metered area and compare to modeled predictions and to assess the thermal comfort performance of the single point mini-split heat pump. This paper will discuss several performance characteristics discovered during the study.
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