Materials challenges for concentrating solar power

Dominic F. Gervasio; Hassan Elsentriecy; Luis Phillipi Da Silva; Arunachala Mada Kannan; Xinhai Xu; K. Vignarooban

doi:10.1007/978-3-319-18633-7_4

Materials challenges for concentrating solar power

Dominic F. Gervasio, Hassan Elsentriecy, Luis Phillipi Da Silva, Arunachala Mada Kannan, Xinhai Xu, K. Vignarooban

Research output: Chapter in Book/Report/Conference proceeding › Chapter

1 Scopus citations

Abstract

A heat transfer fluid (HTF) is a major component in the system for concentrating solar power systems (CSP) to make electricity. The HTF carries thermal energy from the solar concentrator to a steam generator. Currently hydrocarbon oils or alkali-nitrate-based eutectic molten-salt mixtures are used as the HTF in CSP systems, but these materials have limited operating temperature range, which limits efficiency. Hydrocarbons are limited to 250 °C and alkali-nitrate salts are stable only below 600 °C. Using abundant inexpensive materials to make an HTF which is stable to 1,300 °C and compatible with a metal housing, like a Hastelloy nickel alloy, is desired. Design rules are given which tell how the desired goals can be met, which leads to mixing abundant ionic chloride salts, like NaCl and KCl, which boil at temperatures higher than 1,400 °C, with low-melting (~200 °C) covalent metal halides, such as AlCl3 or ZnCl2, to give low-melting (m.p.

Original language	English (US)
Title of host publication	Nanoscale Materials and Devices for Electronics, Photonics and Solar Energy
Publisher	Springer International Publishing
Pages	127-148
Number of pages	22
ISBN (Print)	9783319186337, 9783319186320
DOIs	https://doi.org/10.1007/978-3-319-18633-7_4
State	Published - Aug 26 2015

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)
Energy(all)
Materials Science(all)

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10.1007/978-3-319-18633-7_4

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Materials challenges for concentrating solar power. / Gervasio, Dominic F.; Elsentriecy, Hassan; Da Silva, Luis Phillipi; Mada Kannan, Arunachala; Xu, Xinhai; Vignarooban, K.

Nanoscale Materials and Devices for Electronics, Photonics and Solar Energy. Springer International Publishing, 2015. p. 127-148.

Research output: Chapter in Book/Report/Conference proceeding › Chapter

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AU - Elsentriecy, Hassan

AU - Da Silva, Luis Phillipi

AU - Mada Kannan, Arunachala

AU - Xu, Xinhai

AU - Vignarooban, K.

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AB - A heat transfer fluid (HTF) is a major component in the system for concentrating solar power systems (CSP) to make electricity. The HTF carries thermal energy from the solar concentrator to a steam generator. Currently hydrocarbon oils or alkali-nitrate-based eutectic molten-salt mixtures are used as the HTF in CSP systems, but these materials have limited operating temperature range, which limits efficiency. Hydrocarbons are limited to 250 °C and alkali-nitrate salts are stable only below 600 °C. Using abundant inexpensive materials to make an HTF which is stable to 1,300 °C and compatible with a metal housing, like a Hastelloy nickel alloy, is desired. Design rules are given which tell how the desired goals can be met, which leads to mixing abundant ionic chloride salts, like NaCl and KCl, which boil at temperatures higher than 1,400 °C, with low-melting (~200 °C) covalent metal halides, such as AlCl3 or ZnCl2, to give low-melting (m.p.

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