期刊论文

中文

南华大学学报(自然科学版)

1673-0062

2023

37

02

61-67

10.19431/j.cnki.1673-0062.2023.02.009

国家自然科学基金青年科学基金项目(51708272)。

本校为第一机构

本文设计了一种太阳能热水供热与相变蓄热组合的热炕供热系统，为提高蓄热炕的热响应，配置了高导热复合相变材料，利用数值模拟对炕体单元进行三维非稳态瞬态传热模拟。通过控制变量法，对太阳能相变蓄热炕的相变材料导热系数、相变温度、相变潜热等炕体热工特性影响因素进行模拟分析，得出：相变材料导热系数、供水温度、相变潜热对相变炕的热响应时间影响显著，且相变潜热决定放热时长，相变温度、相变温度范围对相变炕的垫面温度有明显影响。最后，以十二水磷酸氢二钠复合相变材料作为炕体的蓄热材料，对炕体进行蓄放热模拟设计，发现垫面温度昼间可达到17.1℃,夜间可达到30.3℃,可以很好地...

In this paper,a hot kang heating system combining solar hot water heating with phase change heat storage is designed.In order to improve the thermal response of the heat storage kang,a high thermal conductivity composite phase change material is configured,and the three...MORE In this paper,a hot kang heating system combining solar hot water heating with phase change heat storage is designed.In order to improve the thermal response of the heat storage kang,a high thermal conductivity composite phase change material is configured,and the three-d...