Design of solar adsorption refrigeration system with CPC and study on the heat and mass transfer performance

2017 International Conference on New Energy and Future Energy System

Du, W.P.^1 ; Li, M.^1 ; Wang, Y.F.^1 ; He, J.H.^2 ; He, J.X.^1

Solar Energy Research Institute, Yunnan Normal University, Kunming, Yunnan, China^1

School of Physics and Electronic Sciences, Chuxiong Normal University, Chuxiong Yunnan, China^2

关键词: Adsorption refrigeration;    Adsorption refrigeration system;    Desorption temperatures;    Heat source temperatures;    Heat transfer characteristics;    Irradiation conditions;    Refrigerating capacity;    Solar adsorption refrigeration;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/93/1/012005/pdf
DOI  :  10.1088/1755-1315/93/1/012005

来源: IOP

【 摘 要 】

To overcome the problem that the heat source temperature is limited and the lower part of the adsorption tube cannot effectively absorb the solar radiation when solar radiation as the heat source of the adsorption refrigeration system. From the perspective of enhancing the adsorption refrigeration unit tube to absorb solar radiation, thereby strengthening the heat transfer characteristic of adsorption bed, which can improve the efficiency of the refrigeration unit refrigerating capacity and system refrigeration efficiency. Solar adsorption refrigeration system based on CPC was designed and constructed in this paper. The heat and mass transfer performance of the adsorption refrigeration system were studied. The experimental results show that the temperature of the adsorption bed with parabolic concentrating structure can rise to 100°C under low irradiation condition. When the irradiation intensity is 600 w/m2and 400 w/m2, the average temperature rising to desorption temperature reaches 0.67°C and 0.50°C, respectively. It can effectively solve the problem that the conventional adsorption bed is difficult to reach the required desorption temperature due to the low power density of the sunlight. In the experiment, the system COP were 0.166 and 0.143 when the system in the irradiance of 600 w/m2and 400 w/m2.