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research-article

Enhancement in exergoeconomic and enviroeconomic parameters for single slope solar still by incorporating N identical partially covered PVT collectors

[+] Author and Article Information
Desh Bandhu Singh

Centre for Energy Studies, Indian Institute of Technology Delhi, HausKhas, New Delhi, 110016, India
dbsiit76@gmail.com

Navneet Kumar

Mechanical Engineering Department, Galgotias College of Engineering and Technology, Greater Noida, G B Nagar, UP, 110016, India
navneet.kumar@galgotiacollege.edu

Sanjay Kumar

Mechanical Engineering Department, Galgotias College of Engineering and Technology, Greater Noida, G B Nagar, UP, 110016, India
sanj.gcet@gmail.com

V K Dwivedi

Mechanical Engineering Department, Galgotias College of Engineering and Technology, Greater Noida, G B Nagar, UP, 110016, India
vkdwivedi94@gmail.com

J K Yadav

Mechanical Engineering Department, Galgotias College of Engineering and Technology, Greater Noida, G B Nagar, UP, 110016, India
ykjeetendra94@gmail.com

GN Tiwari

Bag Energy Research Society, Sodha Bers Complex, Plot No. 51, Mahamana Nagar, Karaudi, Varanasi, Uttar Pradesh, 221005, India
gntiwari@ces.iitd.ernet.in

1Corresponding author.

ASME doi:10.1115/1.4039632 History: Received May 28, 2017; Revised December 12, 2017

Abstract

This paper deals with the enhancement in exergoeconomic and enviroeconomic parameters for single slope solar still by incorporating N identical partially covered photovoltaic (PVT) collectors. Three cases: (a) single slope solar still incorporating N identical partially covered PVT flat plate collectors (N-PVT-FPC-SS), (b) single slope solar still incorporating N identical partially covered PVT compound parabolic concentrator collectors (N-PVT-CPC-SS) and (c) conventional single slope solar still (CSSSS) have been taken to assess the improvement in various parameters. The various parameters have been computed at 0.14 m water depth, selected values of mass flow rate and number of collectors considering four climatic conditions of New Delhi for each month of year. It has been concluded that N-PVT-FPC-SS performs best followed by N-PVT-CPC-SS and CSSSS on the basis of exergoeconomic and enviroeconomic parameters; however, CSSSS performs better than N-PVT-FPC-SS and N-PVT-CPC-SS on the basis of productivity measured in terms of ratio of monetary value of output and input. The kWh per unit cost based on exergoeconomic parameter is higher by 45.11 % and 47.37 %; environmental cost is higher by 65.74 % and 90.02 %; however, the output per unit input based on productivity is higher by 12.09 % and lower by 26.83 % for N-PVT-FPC-SS than N-PVT-CPC-SS and CSSSS respectively.

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