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首页> 外文期刊>International journal of green energy >Comparative study on performances of a heat-pipe PV/T system and a heat-pipe solar water heating system
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Comparative study on performances of a heat-pipe PV/T system and a heat-pipe solar water heating system

机译：热管PV / T系统与热管太阳能热水系统的性能比较研究

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摘要

The heat-pipe solar water heating (HP-SWH) system and the heat-pipe photovoltaic/thermal (HP-PV/T) system are two practical solar systems, both of which use heat pipes to transfer heat. By selecting appropriate working fluid of the heat-pipes, these systems can be used in the cold region without being frozen. However, performances of these two solar systems are different because the HP-PV/T system can simultaneously provide electricity and heat, whereas the HP-SWH system provides heat only. In order to understand these two systems, this work presents a mathematical model for each system to study their one-day and annual performances. One-day simulation results showed that the HP-SWH system obtained more thermal energy and total energy than the HP-PV/T system while the HP-PV/T system achieved higher exergy efficiency than the HP-SWH system. Annual simulation results indicated that the HP-SWH system can heat the water to the available temperature (45 degrees C) solely by solar energy for more than 121 days per year in typical climate regions of China, Hong Kong, Lhasa, and Beijing, while the HPPV/T system can only work for not more than 102 days. The HP-PV/T system, however, can provide an additional electricity output of 73.019 kWh/m(2), 129.472 kWh/m(2), and 90.309 kWh/m(2) per unit collector area in the three regions, respectively.
机译：热管太阳能热水（HP-SWH）系统和热管光伏/热能（HP-PV / T）系统是两个实用的太阳能系统，它们都使用热管进行热传递。通过选择合适的热管工作流体，这些系统可以在寒冷地区使用而无需冻结。但是，这两个太阳能系统的性能不同，因为HP-PV / T系统可以同时提供电能和热量，而HP-SWH系统仅提供热量。为了理解这两个系统，这项工作为每个系统提供了一个数学模型，以研究其一天和一年的表现。一日的仿真结果表明，HP-SWH系统比HP-PV / T系统获得更多的热能和总能量，而HP-PV / T系统比HP-SWH系统获得更高的火用效率。年度模拟结果表明，在中国，香港，拉萨和北京的典型气候地区，HP-SWH系统每年仅靠太阳能就可以将水加热到可用温度（45摄氏度），超过121天。 HPPV / T系统最多只能工作102天。但是，HP-PV / T系统在三个区域中每单位收集器区域可提供的额外电力输出分别为73.019 kWh / m（2），129.472 kWh / m（2）和90.309 kWh / m（2），分别。

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  • 来源
    《International journal of green energy》 |2016年第5期|229-240|共12页
  • 作者

    Zhao Xuxin; Fu Huide; Ji Jie; Sun Hongyuan; Ma Rui; Wu Qixing;

  • 作者单位

    Shenzhen Univ, Dept Energy & Environm Engn, Nanhai Ave 3688, Shenzhen, Guangdong, Peoples R China;

    Shenzhen Univ, Dept Energy & Environm Engn, Nanhai Ave 3688, Shenzhen, Guangdong, Peoples R China;

    Univ Sci & Technol China, Dept Thermal Sci & Energy Engn, Hefei 230026, Anhui, Peoples R China;

    Shenzhen Univ, Dept Energy & Environm Engn, Nanhai Ave 3688, Shenzhen, Guangdong, Peoples R China;

    Shenzhen Univ, Dept Energy & Environm Engn, Nanhai Ave 3688, Shenzhen, Guangdong, Peoples R China;

    Shenzhen Univ, Dept Energy & Environm Engn, Nanhai Ave 3688, Shenzhen, Guangdong, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Efficiency; heat pipe; photovoltaic/thermal; simulation; solar system;

    机译：效率;热管;光伏/热力;模拟;太阳能系统;

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