Study on exergy efficiency of active desalination coupled solar collector

In this work, a double slope desalination active with basin size area 1,932 m2 wide with 1 m2 glass surface with two pieces with 3 mm glass thickness and 15° glass slope angle. The water level from the bottom of 20 mm and with solar collectors size area 1m2 wide 500mm2 was tested for 8 days in August 2018 starting at 8:00 to 18:00. The exergy value from the calculation of the highest exergy value on the first day of testing at 12.00 is 225.238 kWh, the highest exergy value at the test of the second day at 17.00 WIB is 52.332 kWh, the highest exergy value at 13.00 WIB is 13.680 kWh, exergy value the highest on the fourth day of testing at 11.00 WIB at 6,734 kWh, the highest exergy value on the fifth day test at 12.00 WIB at 22.218 kWh, the highest exergy value on testing the sixth day at 15.00 WIB at 8.728 kWh, the highest exergy value on testing the seventh day at 17.00 WIB amounting to 8.33 kWh, and the highest exergy value at the test of the eighth day at 15.00 WIB amounting to 6.712 kWh.