Submitted on: 08 December 2001.
Revised on: 10 March 2002.
Accepted on: 05 April 2002.
___________________JOURNAL OF THE ENERGY INSTITUTE
Submitted on: 28 February 2003.
Revised on: 28 March 2003.
Accepted on: 02 May 2003.
___________________JOURNAL OF THE ENERGY INSTITUTE
Submitted on: 30 May 2016.
Revised on: 23 August 2016.
Accepted on: 25 September 2016.
___________________JOURNAL OF THE ENERGY INSTITUTE
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Submitted on: 13 July 2013.
Revised on: 19 October 2013.
Accepted on: 07 November 2013.
___________________JOURNAL OF THE ENERGY INSTITUTE
Submitted on: 02 November 2000.
Revised on: 09 December 2000.
Accepted on: 29 December 2000.
___________________JOURNAL OF THE ENERGY INSTITUTE
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