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槽式太阳能集热器热损失计算模型适用性分析

  • 朱川生 ,
  • 李靖 ,
  • 李华山 ,
  • 王令宝 ,
  • 马伟斌
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  • 1. 中国科学院广州能源研究所,广州 510640;
    2. 中国科学院可再生能源重点实验室,广州 510640;
    3. 广东省新能源和可再生能源研究开发与应用重点实验室,广州 510640;
    4. 中国科学院大学,北京 100049
朱川生(1991-),男,硕士研究生,主要从事太阳能热利用和太阳能分布式发电技术研究。李华山(1981-),男,博士,副研究员,硕士生导师,主要从事太阳能及低品位热能利用技术研究。

收稿日期: 2019-04-26

  修回日期: 2019-05-13

  网络出版日期: 2019-10-29

基金资助

广东省自然科学基金项目(2018A0303130181); 中国科学院青年创新促进会资助项目(2017402)

Applicability of Heat Loss Calculation Models for Solar Parabolic Trough Collectors

  • ZHU Chuan-sheng ,
  • LI Jing ,
  • LI Hua-shan ,
  • WANG Ling-bao ,
  • MA Wei-bin
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  • 1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;
    2. CAS Key Laboratory of Renewable Energy, Guangzhou 510640, China;
    3. Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China;
    4. University of Chinese Academy of Sciences, Beijing 100049, China

Received date: 2019-04-26

  Revised date: 2019-05-13

  Online published: 2019-10-29

摘要

为精确预测太阳能槽式集热器(parabolic trough collector, PTC)的传热损失,基于美国桑迪亚国家实验室(Sandia National Laboratory, SNL)、西班牙太阳能热发电站(Plataforma Solar de Almería, PSA)以及美国安柏瑞德航空航天大学(Embry-Riddle Aeronautical University, ERAU)的实测数据,对16个既有的PTC热损失模型的准确性和适用性进行了分析。结果表明,WANG等模型与SNL的实测数据吻合度最高;DICKES模型与ERAU的实测数据吻合度最高;PATNODE模型与PSA的实测数据吻合度最高。整体而言,在30 ~ 450℃ PTC载热介质工作温度范围内,PATNODE模型计算精度最高,适用性最好;直射辐射强度、入射角以及载热介质温度对集热器热损失的大小起着决定性的作用。

本文引用格式

朱川生 , 李靖 , 李华山 , 王令宝 , 马伟斌 . 槽式太阳能集热器热损失计算模型适用性分析[J]. 新能源进展, 2019 , 7(5) : 448 -454 . DOI: 10.3969/j.issn.2095-560X.2019.05.009

Abstract

In order to accurately predict the heat loss of solar parabolic trough collector, the accuracy and adaptability of 16 existed heat loss models were analyzed based on the experimental data from the U.S. Sandia National Laboratory (SNL), Plataforma Solar de Almería in Spain (PSA) and Embry-Riddle Aeronautical University (ERAU) in United States. Results showed that, the DICKES model has the best applicability with experimental data from ERAU; the PATNODE model has the best applicability with experimental data from PSA and the model proposed by WANG et al. in 2017 has the best applicability with experimental data from SNL. In general, the PATNODE model has the highest accuracy and adaptability when with HTF operating temperature of 30-450°C, the direct radiation intensity, the incident angle and the temperature of the heat transfer fluid play extraordinarily important roles in the heat loss of the parabolic trough collector.

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