| With the development of economy and the progress of the society, to advocate green life increasingly become the subject of the society. The development and utilization of clean energy such as solar and other renewable energy have been paid more and more attention., at the same time, solar energy-driven ejector refrigeration system have been widely concerned. Due to the intensity of solar radiation is not stable, the change of solar radiation intensity is bound to cause the thermal characteristics of heat collecting device, which affects the performance of the ejector refrigeration system. The simulation model of heat collecting device has been established, and the simulation calculation program is compiled by the software EES. The simulation model is verified through experiments. The main research works are as follows:(1) The heat collection device simulation model is established. When the weather conditions changes, it can calculate the hourly variation of heat collection, heat collecting efficiency and the temperature.(2) The experiment setup of the heat collecting device was build. The results of simulation calculation and experimental test results in the same change trend to verify the correctness of the model. The influence of various parameters on the heat collecting device was analyzed. The calculation results show that: Verified again that in Zheng Zhou and similar weather conditions, it is better to use the heat pipe vacuum tube heat collection device when the heat temperature is high.(3) According to the meteorological conditions in Zhengzhou area, calculated the Heating performance of the heat collection device in winter, which also provide the refrigerating capacity for the refrigeration system. The results show that: the heat collection device provides about 52% of the heat in the winter heating period for the 180 square meters of buildings. The solar satisfaction rates are 69%, 34%, 28%, 55% and 72% in the heating period of typical day. |
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