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首页> 外文会议>International Symposium on Heat Transfer Enhancement and Energy Conservation(ISHTEEC) vol.2; 20040112-15; Guangzhou(CN) >THE EFFECT OF PV WALLS ON INDOOR AIR-CONDTIONING LOAD
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THE EFFECT OF PV WALLS ON INDOOR AIR-CONDTIONING LOAD

机译：光伏墙对室内空调负荷的影响

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摘要

Recent years, photovoltaic technology had widely applied in building services engineering due to its direct electricity generation, and the integration of PV panels to building walls is a common application. PV walls not only can provide essential power energy for building, but also improve indoor thermal environment by reducing indoor heat gain contributed by transient heat transfer across walls. This paper introduces a simplified method to calculate heat gain hourly due to transient heat transfer across PV walls, when PV panel is directly attached to building walls and enclosed air gap between PV cell and wall exists. Analyzing effect of the dynamic heat transfer performance of PV wall on indoor heat gain hourly, PV cells, air gap and common insulated wall are considered a system when some necessary simplified conditions are applied. Two usual brick walls and corresponding PV walls are used as analyzing examples, the calculating results show PV walls can improve remarkably indoor thermal environment by reducing wall heat gain hourly. Extra evidence shows also that air gap between PV panel and insulated wall contribute more, than reduction of solar radiation due to the power generation of PV cell, in decreasing wall heat gain hourly.
机译：近年来，由于其直接发电，光伏技术已广泛应用于建筑服务工程，并且光伏面板与建筑墙体的集成是一种常见的应用。光伏墙不仅可以为建筑物提供必要的能源，还可以通过减少跨墙的瞬态热传递带来的室内热量获取来改善室内热环境。本文介绍了一种简化的方法，该方法可以在将光伏面板直接附着在建筑物墙壁上并且在光伏电池与墙壁之间存在封闭气隙的情况下，计算跨壁每小时传热所产生的每小时热量增量。分析光伏墙的动态传热性能对室内每小时热量获取的影响，当应用一些必要的简化条件时，将光伏电池，气隙和普通隔热墙视为一个系统。以两种常见的砖墙和相应的光伏墙为例进行分析，计算结果表明，光伏墙可以通过每小时减少墙体热量获取，从而显着改善室内热环境。额外的证据还表明，光伏面板和隔热墙之间的气隙在每小时减少墙体热量获取方面，比减少由于光伏电池发电所产生的太阳辐射的贡献更大。

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