文献类型： 外文期刊

作者： Ling, Haoshu ¹ ; Chen, Chao ¹ ; Wei, Shen ² ; Guan, Yong ¹ ; Ma, Caiwen ³ ; Xie, Guangya ¹ ; Li, Na ¹ ; Chen, Ziguang ¹ ;

作者机构： 1.Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing 100124, Peoples R China

2.Univ Plymouth, Bldg Performance Anal Grp, Plymouth PL4 8AA, Devon, England

3.Xinjiang Acad Agr Sci, Inst Agr Mechanizat, Urumqi 830091, Peoples R China

关键词： Greenhouse;Phase change materials;Heat storage;Thermal environment;Evaluation methodology

期刊名称：APPLIED ENERGY （ 影响因子：9.746； 五年影响因子：9.953 ）

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收录情况： SCI

摘要： To evaluate the effect of phase change materials (PCMs) on the indoor thermal environment of greenhouses under different weather conditions and over a long time in the heating season, a study was carried out using both experimental method and numerical method. The study was conducted in a typical greenhouse located in Beijing, China, and important parameters have been monitored continuously for 61 days, including indoor air temperature, outdoor air temperature, solar radiation, surface temperature of greenhouse envelopes and soil temperature. Based on these parameters, a number of indicators, namely, operative temperature, daily effective accumulative temperature, irradiated surface temperature of the north wall, average temperature of PCMs, and daily heat storage and release, have been used to evaluate the performance of PCMs in greenhouses. All indicators have provided consistent results that confirm the positive effect of PCMs on improving the indoor thermal environment of greenhouses over a long time. Additionally, the paper has demonstrated that a sunny weather could help to promote the efficiency of PCMs, comparing to a cloudy weather. (C) 2014 Elsevier Ltd. All rights reserved.