中国农业气象 ›› 2014, Vol. 35 ›› Issue (02): 174-179.doi: 10.3969/j.issn.1000-6362.2014.02.009

• 论文 • 上一篇    下一篇

相变材料墙体在郑州地区下沉式日光温室中的保温作用

刘晓宇,何翠,杜亮,侯伟娜,刘旭,孙治强   

  1. 河南农业大学园艺学院,郑州450002
  • 收稿日期:2013-08-24 出版日期:2014-04-20 发布日期:2015-02-11
  • 作者简介:刘晓宇(1989-),女,河南新乡人,硕士生,研究方向为设施栽培。Email:190020787@qq.com
  • 基金资助:

    国家现代农业产业技术体系基金任务项目(CARS-25-C-06)

Heat Preservation Experimental Study on Phase Change Wall Materials for Sinking Solar Greenhouse in Zhengzhou

LIU Xiaoyu,HE Cui,DU Liang,HOU Weina,LIU Xu,SUN Zhiqiang   

  1. College of Horticulture,Henan Agricultural University,Zhengzhou 450002,China
  • Received:2013-08-24 Online:2014-04-20 Published:2015-02-11

摘要: 将以CaCl2为主的水合无机盐复合相变材料平铺一层于郑州地区下沉式日光温室后墙夹层内,以普通温室为对照,观测并探讨典型天气条件下相变温室和普通温室室内温度、后墙内表面温度以及室内外温差变化规律。结果表明,晴天相变温室在揭苫后平均升温速率为3.26℃/h,低于普通温室的3.65℃/h,午后最高温低于普通温室但差异不显著,全天后墙内表面平均温度高于普通温室3.9℃,夜间室内温度高于普通温室1.8℃,室内外温差大于普通温室。阴、雨天相变温室与普通温室的室内温度、后墙内表面温度以及室内外温差均表现出一致的变化趋势;雪天温室内温度以及后墙内表面温度全天呈下降趋势,相变温室温度下降速率高于普通温室0.08℃/h,而相变温室室内外温差变化较小,普通温室室内外温差逐渐变大。相变材料能有效吸收储存热量,提高室内温度。试验结果可为水合无机盐复合相变材料的保温降能耗特性提供理论支持,也可为其在日光温室中的推广应用提供依据。

关键词: 下沉式日光温室, 水合无机盐复合材料, 相变材料墙体, 温室保温, 蓄能袋

Abstract: Taking the hydrated inorganic composite phase-change materials (FCPCM),mainly CaCl2,as basis filler in interlayer of back wall of sinking solar greenhouse in Zhengzhou .The variation of indoor temperature,the surface of back wall temperature and outdoor temperature in typical weather conditions between CPCM greenhouse and CK was observed and discussed.The results showed that the average rising rate of CPCM greenhouse was 3.26℃/h uncovering the insulation cloth in sunny days,which was lower than CK(CK is 3.65℃/h).The highest temperature of CPCM greenhouse was slightly lower than CK in the afternoon.The surface temperature of the back wall was 3.9℃ higher than that of CK during daytime,and 1.8℃ higher than that of CK at night .The range of temperature between indoor and outdoor was higher than that of CK The interior temperature and the surface temperature of back wall interlayer and the variation of temperature between indoor and outdoor changed similar in rainy days .The interior temperature and the surface temperature of back wall decreased at the rate of 0.08℃/h in CPCM greenhouse,which was higher than that of CK The range of temperature between indoor and outdoor was little,while it increased gradually in CK Heat could be absorbed and stored by FCPCM effectively to increase the temperature of greenhouse,which was good for growing The results could provide theoric basic for understanding the properties of hydrated salt composite phase change material

Key words: Sinking solar greenhouse, Hydrated salt composite phase change material, The wall of phase change material, Heat preservation of greenhouse, Energy storage bag