IJEP 42(9): 1133-1140 : Vol. 42 Issue. 9 (September 2022)
Kongu Engineering College, Department of Mechanical Engineering, Perundurai – 638 060, Tamil nadu, India
The increment of productivity of solar desalination system is obtained by proper modification of solar still. Researchers have done extensive work on solar still by varying the operating and design parameters but productivity is still low. The main objective of this work is to evaluate the modification done on the solar still and compared it with conventional solar still. Exergy, efficiency and economic (3E) analysis was performed for the Bell Colman cycle hybrid solar still. An air refrigeration system was combined with the solar still. Refrigeration system is the best source for both heating and cooling. Experiments were carried out for both conventional and hybrid still with same operating and design parameters. Maximum productivity obtained in hybrid still was 0.863 L/m2/day. The obtained output of 3E analysis for hybrid still depicts that exergy efficiency is maximum as 24% at 15:00 hr, efficiency is maximum as 27% at 16:00 hr and thermo-economic analysis shows that cost of water produced was 0.075$/L/m2. Productivity, exergy, efficiency and cost per liter of hybrid still were compared and found to be more effective than the conventional still.
Desalination, Hybrid still, Exergy efficiency economic analysis, Air refrigeration system
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