Optimization design and analysis of the solar thermal heater system forced circulation automatic control

• Main Authors: CHIANG,CHIA-WEI, 江嘉偉
• Other Authors: Junewen Chen
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/xubkw2

碩士 === 中華大學 === 電機工程學系碩士班 === 103 === In this study, we designed and fabricated an effective automatic forced circulation control system for solar heating systems. We evaluated the performance of the proposed system in solar thermal heating systems by using weather data obtained from real locations. Official weather data on Hsinchu, Taiwan, were used to calculate and analyze heating systems containing vacuum and planar tube solar energy collecting plates and involving conventional thermal-siphon circulation and forced circulation. A thorough evaluation was conducted by operating the systems at water temperatures ranging from 45 to 90 °C. The results revealed that the efficiency of the solar thermal heater was increased by 15%.