0
research-article

Effect of optimized metallic nanoparticles on the thermo-physical characteristics of hybrid double slope solar still: A critical analysis

[+] Author and Article Information
Lovedeep Sahota

Centre for Energy Studies, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India 110016
love.sahota11@gmail.com

V.S. Gupta

Centre for Energy Studies, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India 110016
ambberpihu@gmail.com

G.N. Tiwari

Centre for Energy Studies, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India 110016; Bag Energy Research Society (BERS), SODHA BERS COMPLEX, Plot No. 51, Mahamana Nagar, Karaudi Varanasi (UP), India 221005
gntiwari@ces.iitd.ac.in

1Corresponding author.

ASME doi:10.1115/1.4040782 History: Received November 25, 2017; Revised June 28, 2018

Abstract

In present paper, efforts has been made to study the thermo-physical characteristics of N photovoltaic thermal flat plate collectors coupled with double slope solar still (N-PVT-FPC-DSSS) and operating with helically coiled heat exchanger. The analysis has been performed for the optimized concentration of NPs (Al2O3 0.107%; TiO2 0.093%; and CuO 0.131%) and optimized basin fluid (basefluid/nanofluid) mass (50kg) for different weather conditions of the month May (New Delhi). The Nusselt number (Nu) and Rayleigh number (Ra) are functions of thermo-physical properties of nanofluids and strongly influence the natural convective heat transfer coefficient in the solar still. Therefore, these numbers have also been investigated for basefluid and Al2O3, TiO2 and CuO- water based nanofluids in detail. Significant enhancement in natural convective heat transfer coefficient (Al2O3 67.03%; TiO2 63.56%; and CuO 71.23%) and Nusselt number (Al2O3 119.72%; TiO2 98.64%; CuO 151.62%) has been observed. The monthly productivity of the hybrid system found to be higher by using nanofluids (320.77kg TiO2; 338.23kg Al2O3, and 355.46 CuO) as expected from the heat transfer results. Moreover, the comparative study between the proposed hybrid system and passive DSSS has been carried out.

Copyright (c) 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In