Optical–Thermal Conversion Performance of Solar Dish Concentrator–Cavity Receiver System Under Tracking Error

Author:

Liu Yong Xiang1,Yan Jian1ORCID,Xie Xin Yi1,Peng You Duo1ORCID

Affiliation:

1. College of Mechanical Engineering Hunan University of Science and Technology Xiangtan Hunan 411201 China

Abstract

Tracking error leads to nonuniform flux distribution, local high temperature, and thermal stress of cavity receiver. However, the effects of tracking error on the optical–thermal conversion of dish concentrator–cavity receiver (DCCR) system are unclear. In this article, the optical–thermal coupling model of the DCCR system considering the tracking error is established, and the variations of the thermal performance index (the thermal efficiency, cavity maximum temperature, and outlet temperature) of the DCCR system under different direct normal irradiance (DNI), mass flow rate, inlet temperature, and cavity material are studied in detail. In the results, it is shown that the working condition is constant, tracking error increases, the outlet temperature and thermal efficiency decrease slightly, and the cavity maximum temperature increases. When tracking error is constant, with the increase of DNI or inlet temperature, the outlet and cavity maximum temperature increase, and the thermal efficiency decreases. With the increase of mass flow rate, the outlet and cavity maximum temperature decrease, and thermal efficiency increases. The cavity material with high thermal conductivity is beneficial to reduce the cavity maximum temperature. In this work, guidance for realizing safe and efficient service support can be provided.

Funder

National Natural Science Foundation of China

Publisher

Wiley

Subject

General Energy

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3