期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2016
卷号：88
期号：3
出版社：Journal of Theoretical and Applied
摘要：This paper considers the technique for studying the testing of tubular solar collector in a lab. Today, there are several ways methods of using solar collectors. When using the first method, the following values are measured: coolant flow, difference between the temperatures of the collector coolant fluid at the collector inlet and outlet and the density of the incident solar radiation flux. Here, all these values are measured simultaneously and under quasi-stationary mode. Much of the research is related to testing of collectors in field conditions using the instant method. At the end of the tests, the product of the total heat loss coefficient of the collector and efficiency coefficient of the absorption panel was determined. The heat output of the collector was also measured. As is seen from experimental methods of testing tubular solar collector, the tubular collector with an absorbing screen decreases from 0.8 to 0.17 when water is supplied at the inlet 20 C, 30 C, 40 C and 50 C, while the efficiency of the tubular collector with a reflector increases from 0.17 to 0.68 when water is supplied at the inlet 20 C, 30 C, 40 C, and then decreases to 0.4 at t1-50 C. It is obvious that the efficiency of heat absorption and transfer as a result of thermal conductivity is much higher than the capturing and reflection of sunlight by the absorbing pipe. However, both the cost and labor input involved in the manufacture of the above tubular collector with an absorbing screen is higher.
