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여세동(Sedong Yeo),임병주(Byung-Ju Lim),정경열(Kyung-Yul Chung),박창대(Chang-Dae Park) 대한기계학회 2016 대한기계학회 춘추학술대회 Vol.2016 No.12
We have tested to improve the productivity for hybrid solar still, which can be operated by solar thermal energy and/or waste heat of exhaust gas from the electrical generator. The apparatus has simple solar still with 1 m × 2 m collecting area and vertical multi-effect diffusion(MED) part. In this study, the experiments were conducted with two identical hybrid solar stills by solar radiation as energy source. The experiments about various operating conditions were performed at the outdoor. In the result of the tests, the yield of the hybrid solar still depended on the various operating conditions. Insulation with side glasses and lower basin seawater level at the simple solar still increase the productivity of the solar still. Reflecting fins less than 60% reflectivity decrease the total productivity. However, the feeding flow rate of the seawater into MED part scarcely affected the productivity in tested range.
여세동(Sedong Yeo),정경열(Kyung-Yul Chung),안병훈(Byunghoon Ahn),박창대(Chang-Dae Park) 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.2015 No.11
We conducted parametric performance tests for hybrid solar still, which can be operated by solar thermal energy and/or waste heat. In this study, the solar radiation was used as thermal energy of the hybrid solar still with the 2 ㎡ collecting area. Experimental parameters include insulation condition at side glasses of the solar collecting part, reflecting fins in the basin of the solar still, seawater level in the basin of the solar still, and solar insolation. In the result of the performance tests for two identical hybrid solar stills, insulation of the side glasses improved performance. Reflecting fins in the basin had a negative effect on the production of distillates of basin part and multi-effect diffusion part of the solar still. Lower seawater level in the basin and higher solar insolation showed the better performance of the hybrid solar still.