Numerical simulation on thermal performance of flat plat solar collector with double glass covers

SUN Zishuai; TAO Hanzhong; ZHANG Jiandong; JIANG Chuan

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Numerical simulation on thermal performance of flat plat solar collector with double glass covers

Thermal Power Generation Issue 10, (2016)

更新时间：2025-09-28

- Numerical simulation on thermal performance of flat plat solar collector with double glass covers
- 作者机构：
  
  1. 南京工业大学能源科学与工程学院,江苏,南京,211800
  2. 东南大学能源与环境学院,江苏,南京,210096
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK513
- Published Online：15 October 2016，
  
  Published：2016
- 稿件说明：
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SUN Zishuai, TAO Hanzhong, ZHANG Jiandong, et al. Numerical simulation on thermal performance of flat plat solar collector with double glass covers[J]. Thermal Power Generation, 2016, (10).
DOI：

SUN Zishuai, TAO Hanzhong, ZHANG Jiandong, et al. Numerical simulation on thermal performance of flat plat solar collector with double glass covers[J]. Thermal Power Generation, 2016, (10). DOI：

摘要

基于有限容积法建立了双层玻璃盖板平板太阳能集热器的数学模型

对该集热器网格和物理模型进行了有效性验证分析了环境温度、进口水温、太阳辐射强度及下层玻璃盖板位置对集热器热性能的影响

并与单层玻璃盖板平板集热器对比。结果表明:当环境温度低于18 ℃时

双层玻璃盖板集热器更具优势

当环境温度为-10 ℃时

双层玻璃盖板集热器瞬时效率比普通平板集热器高0.26；进口水温和太阳辐射强度的提高均可导致集热器内部温度上升

此时双层玻璃盖板的保温效果更加明显

当进口水温为50 ℃时

双层玻璃盖板集热器比单层玻璃盖板平板集热器的瞬时效率高0.27；当下层玻璃盖板距吸热板上方18 mm时

集热器瞬时效率最高可达0.678。本文研究结果有利于对平板式太阳能集热器的工程应用和优化设计。

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