青海地区日光温室节能型主动蓄热式后墙的性能测试

doi:10.3969/j.issn.1000-6362.2020.02.003

摘要/Abstract

摘要： 利用西北非耕地地区沙土资源丰富的特点，在青海省海东市建造主动蓄热固化沙后墙日光温室（SW），并以被动蓄热固化沙后墙日光温室（CK）为对照，通过试验对比分析二者的热工性能。结果表明，与CK相比，晴天白天，SW内最高气温和平均气温分别降低2.3℃、1.5℃。而晴天夜间，SW内最低气温和平均气温分别比CK高2.3℃、1.8℃。阴天白天和夜间，SW内平均气温分别比CK高1.8℃、2.7℃。晴天，SW的蓄热层厚度为520～720mm，大于CK的320～520mm，且保温被揭开与闭合时刻的温差沿后墙厚度方向逐渐减小。阴天，SW墙体蓄热层厚度在320～520mm，CK墙体蓄热层厚度在120～320mm，与晴天相比，阴天蓄热层厚度减小。说明主动蓄热固化沙后墙日光温室（SW）可有效增加墙体蓄放热量，提升夜间气温。

关键词: 主动蓄热, 墙体, 主动蓄热固化沙后墙日光温室（SW）

Abstract: Taking advantage of the rich sand and soil resources in the non-cultivated land area in northwestern China, an active heat storage solidified sand wall solar greenhouse (SW) was built in Haidong City, Qinghai Province, and a passive heat storage solidified sand wall solar greenhouse (CK) was used as control. The thermal performance of the two was analyzed by experimental comparison. The results showed that compared with CK, the maximum temperature and average temperature in SW decreased by 2.3℃ and 1.5℃ on sunny days, respectively. On a clear night, the minimum and average temperatures in SW were 2.3℃and 1.8℃higher than CK, respectively. During cloudy day and night, the average temperature in SW was 1.8℃ and 2.7℃ higher than CK, respectively. On sunny days, the thickness of the thermal storage layer of SW was 520?720mm, which was greater than 320?520mm of CK, and the temperature difference between the time when the insulation was uncovered and when it was closed gradually decreased along the thickness of the rear wall. On a cloudy day, the thickness of the heat storage layer in the SW wall was 320-520mm, and the thickness of the heat storage layer in the CK wall was 120?320mm. Compared with sunny days, the thickness of the heat storage layer on the cloudy day was reduced. It was shown that the active heat storage solidified sand wall solar greenhouse (SW) can effectively increase the heat storage of the wall and increase the night temperature.

Key words: Active heat storage, Wall, Active heat storage and curing sand wall solar greenhouse(SW)

吴照学，王强，张勇，邹志荣，严露露. 青海地区日光温室节能型主动蓄热式后墙的性能测试[J]. 中国农业气象, 2020, 41(02): 86-93.

WU Zhao-xue，WANG Qiang，ZHANG Yong，ZOU Zhi-rong，YAN Lu-lu. Performance Test of Energy-saving Active Heat Storage Rear Wall in Solar Greenhouses in Qinghai[J]. Chinese Journal of Agrometeorology, 2020, 41(02): 86-93.

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