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 Almeria, 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。
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.
作者
朱川生
李靖
李华山
王令宝
马伟斌
ZHU Chuan-sheng;LI Jing;LI Hua-shan;WANG Ling-bao;MA Wei-bin(Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,China;CAS Key Laboratory of Renewable Energy,Guangzhou 510640,China;Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development,Guangzhou 510640,China;University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《新能源进展》
2019年第5期448-454,共7页
Advances in New and Renewable Energy
基金
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)
关键词
太阳能
槽式集热器
热损失
经验模型
误差分析
solar energy
parabolic trough collector
heat loss
empirical model
error analysis
