Consideration on thermal decomposition of calcium hydroxide pellets for energy storage

Fujii, I and Tsuchiya, K and Shikakura, Y and Murthy, MS (1989) Consideration on thermal decomposition of calcium hydroxide pellets for energy storage. In: Journal of Solar Energy Engineering, 111 (3). pp. 245-250.

PDF consideration.pdf - Published Version Restricted to Registered users only Download (583kB) | Request a copy

Abstract

The reversible chemical reaction of Ca(OH)2/CaO appears to be attractive for storage of solar thermal energy, in view of the nonpolluting and nontoxic nature of the reactants. This paper presents some data on thermal decomposition of calcium hydroxide pellets along with its additives of aluminum, aluminum hydroxide, zinc, and copper. The addition of aluminum and zinc powder enhanced the rate of decomposition considerably at 450°C, but copper had no effect. Considerations on the effect of additives are also discussed in some detail, though their effects are not established with certainty. There is some evidence that heat transfer into the pellet, and the number of potential nucleation sites due to thermal stresses, influence the kinetics and mechanism of decomposition.

Item Type:	Journal Article
Publication:	Journal of Solar Energy Engineering
Publisher:	The American Society of Mechanical Engineers
Additional Information:	Copyright of this article belongs to The American Society of Mechanical Engineers.
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	16 Jul 2010 06:47
Last Modified:	19 Sep 2010 06:11
URI:	http://eprints.iisc.ac.in/id/eprint/29304

Actions (login required)

View Item