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Effectiveness of bottom insulation of a salinity gradient solar pond

journal contribution
posted on 2024-11-02, 10:31 authored by Sayantan Ganguly, Abhijit Shridhar DateAbhijit Shridhar Date, Aliakbar AkbarzadehAliakbar Akbarzadeh
This technical brief presents a study on the effectiveness of the bottom insulation of a salinity gradient solar pond (SGSP) in Melbourne, Australia. Insulation is applied at the bottom of a SGSP in order to minimize the heat loss from the SGSP to the ground underneath. But selection of optimum thickness of the insulation to extract the best thermal performance of an SGSP is a challenge as insulation involves significant investment. Hence, modeling heat loss from SGSP to the ground before and after applying the insulation is thus very essential. In this study, a layer of polystyrene is used as insulation at the bottom of SGSP. The temperature distribution in the SGSP and ground below it, the efficiency of the SGSP and the heat removal from SGSP are estimated for the SGSP without insulation and with insulation of different thicknesses. The results show that the insulation definitely reduces the heat loss from the SGSP to the ground, but to a certain extent. Insulation beyond a certain thickness is proved to be ineffective in increasing the efficiency or reducing the heat loss to ground and thus unable to enhance the thermal performance of the SGSP.

History

Journal

Journal of Solar Energy Engineering

Volume

140

Number

44502

Issue

4

Start page

1

End page

5

Total pages

5

Publisher

The American Society of Mechanical Engineers (ASME)

Place published

United States

Language

English

Copyright

© 2018 ASME

Former Identifier

2006090567

Esploro creation date

2020-06-22

Fedora creation date

2019-04-30

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