Enhanced sensible heat capacity of molten salt and conventional heat transfer fluid based nanofluid for solar thermal energy storage application

Hyun Eun Kwak, Donghyun Shin, Debjyoti Banerjee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

24 Scopus citations

Abstract

In concentrating solar power (CSP) systems, the thermo-physical properties of the heat transfer fluid (HTF) are key parameters for enhancing the overall system efficiencies. Molten salts, such as alkali nitrates, chlorides or carbonates, and their eutectics, are considered as alternatives to conventional HTF (such as water or oil) to extend the operational capabilities of CSPS. However, the usage of the molten salt as the HTF is limited, since the heat capacity of the molten salt is relatively lower than that of conventional HTF. Nanofluid is a mixture of a fluid and nanoparticles. Well dispersed nanoparticles can be used to enhance the thermo-physical properties of HTF. In this study, silicon dioxide nanoparticles were dispersed into a molten salt and into a conventional HTF (Therminol VP-1, Solutia Inc). The specific heat enhancement of each nanofluid was studied and the applicability of such nanofluid materials for solar thermal storage applications was explored.

Original languageEnglish
Title of host publicationASME 2010 4th International Conference on Energy Sustainability, ES 2010
Pages735-739
Number of pages5
DOIs
StatePublished - 2010
EventASME 2010 4th International Conference on Energy Sustainability, ES 2010 - Phoenix, AZ, United States
Duration: May 17 2010May 22 2010

Publication series

NameASME 2010 4th International Conference on Energy Sustainability, ES 2010
Volume2

Conference

ConferenceASME 2010 4th International Conference on Energy Sustainability, ES 2010
Country/TerritoryUnited States
CityPhoenix, AZ
Period05/17/1005/22/10

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