云南师范大学学报（自然科学版）2025，Vol.45Issue(4)：5-7,3.DOI:10.7699/j.ynnu.ns-2025-037
环境温度与管内初始水温对全玻璃真空太阳集热管平均热损系数的影响
Effect of Ambient Temperature and Initial Water Temperature on the Average Heat Loss Coefficient of Evacuated Solar Collector Tube
摘要
Abstract
In order to investigate variations in heat loss of all-glass evacuated solar collector tubes under actual working condition,the average heat loss coefficient(ULT)of the evacuated tube was tested by changing the ambient temperature and initial water temperature inside the tube,and their influence on ULT was analyzed.The results indicate that an increase in the temperature difference between the ambi-ent temperature and the initial water temperature inside the tube significantly accelerates the heat loss of the vacuum tube,but the higher the ambient temperature,the greater the ULT.At a fixed ambient temperature,the cooling rate of the water temperature inside the tube decreases,and ULT also decreases with the decrease of the initial water temperature inside the tube.关键词
全玻璃真空太阳集热管/平均热损系数/环境温度/热性能Key words
Evacuated solar collector tube/Average heat loss coefficient/Ambient temperature/Thermal performance分类
能源科技引用本文复制引用
徐淼,郑傲,杨国栋,蒯世来,高文峰,张有刚..环境温度与管内初始水温对全玻璃真空太阳集热管平均热损系数的影响[J].云南师范大学学报（自然科学版）,2025,45(4):5-7,3.基金项目
国家自然科学基金资助项目(12262036) （12262036）
云南省基础研究计划资助项目(202301AT070064). （202301AT070064）
