Abstract
In the present communication, modelling and performance of solar still integrated with Evacuated Flat Plate Collector with one cover glass (SS-EFPC-1C) and two cover glass (SS-EFPC-2C) have been carried out for the climate condition of India at New Delhi. Furthermore, energy and exergy analyses of both the system as SS-EFPC-1C and SS-EFPC-2C have been evaluated and presented. Moreover, comparison between different configuration of the solar still, namely, conventional solar still (SS), solar still augmented with flat plate collector having one glass cover (SS-FPC-1C) and having two glass cover (SS-FPC-2C) have also been presented. The mass of water has been taken as 20.8 kg, wind speed 2.5 m/s, and mass flow rate 0.019 kg/s. Results show that daily productivity of the proposed system i.e., EFPC has around 175% higher productivity with conventional solar still at 14:00 p.m. Also, daily energy efficiency obtained for Solar Still, SS-FPC-1C, SS-FPC-2C, SS-EFPC-1C and SS-EFPC-2C are around 39.74%, 30.95%, 36.10%, 45.85%, and 46.64% while the daily exergy efficiency is 2.69%, 3.99%, 5.19%, 7.95%, and 8.21%, respectively.
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