针对传统Trombe墙冬季供热效率不高、夏季过热等问题,提出一种高效双通道型Trombe墙系统,对该系统在冬季时的热性能和采暖效果进行实验研究。结果表明,高效双通道型Trombe墙热效率是传统Trombe墙的1.6~3.4倍,室内温度相比于传统Trombe墙可升高0.7~5.7 ℃。其中,当总通道厚度为0.5 m,外通道为0.2 m,隔热板形状为凹凸板时热效率最高为31%,此时室内温度可达21.7 ℃。此外,在实验研究基础上建立高效双通道型Trombe墙的传热模型,并验证其准确性。
Abstract
To solve the problems of low heating efficiency of traditional Trombe wall in winter and overheating in summer, an high-efficient dual-channel Trombe wall system was proposed. The thermal performance and the heating effect of the system in winter was experimentally studied. The results show that the thermal efficiency of the high efficiency dual-channel Trombe wall is 1.6-3.4 times higher than that of the traditional Trombe wall. The indoor temperature is increased by 0.7-5.7 ℃ compared with the traditional Trombe wall. When the total channel thickness is 0.5 m and the outer channel thickness is 0.2 m, the thermal efficiency of dual-channel Trombe wall with U-shape baffle reaches the highest of 31%. And the indoor temperature can reach up to 21.7 ℃. The heat transfer model of high efficiency dual-channel Trombe wall is established on the basis of experimental research, and its accuracy is verified, which can provide foundation for further optimization.
关键词
被动太阳能建筑 /
太阳能供热 /
太阳能收集 /
Trombe墙 /
热效率 /
隔热板
Key words
passive solar buildings /
solar heating /
solar collectors /
Trombe wall /
thermal efficiency /
heat insulation baffle
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参考文献
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基金
国家自然科学基金（51908527）; 江苏省高等学校自然科学研究项目（18KJB560009）
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