Performance prediction of a solar hot water system with change of circulating pump efficiency in solar collectors

Abstract

In this study a mathematical model was developed to predict operating performance of the solar collector under specified weather conditions at Jeju Island, Korea. The optimum mass flow rate through collector based on the relationship between the useful heat gain of solar collector and the electricity consumption of solar pump is investigated. Besides, the effect of various parameters such as solar collector area, initial water temperature and volume of storage tank is analyzed. The results of the simulation show that the system performance increased about 1.33% at m = 0 . 442 kg/s with the new coefficient K c = 0 . 17 . Furthermore the system performance is affected strongly by the change of collector area, initial water temperature and volume of storage tank It should give concise information on the aims, the methods, the results and the conclusions of the paper. Its length should not exceed 200 words.