LONG TERM THERMAL PERFORMANCE OF EVACUATED TUBULAR SOLAR COLLECTOR SYSTEM FOR INDUSTRIAL PROCESS HEAT IN KOREA

摘要

A field test was performed for the ETSC system that is installed in beer brewery in Gwangju Korea. The system for the process heat with medium temperature range (85 °C) consists of 2-ton buffer storage tank and collector modules of 94.08 m2 collector area and controller. Test has been performed to obtain the reliability, durability and stability. The system has been operating from May 2003 to the current date. Their operating conditions were checked by the remote controlling and monitoring in real time base. Long term thermal performance of the system is analyzed by the data acquisitions, and the monthly and daily average thermal performance for the year 2004 has been presented.