(19)

(11)

EP 1 711 755 A1

(12)

(43) Date of publication: 18.10.2006 Bulletin 2006/42 (21) Application number: 05700115.8 (22) Date of filing: 25.01.2005

(51) International Patent Classification (IPC):  F25B 30/04(2006.01) F25B 17/08(2006.01) F25B 35/04(2006.01) (86) International application number: PCT/AU2005/000083 (87) International publication number: WO 2005/073644 (11.08.2005 Gazette 2005/32)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR (30) Priority: 28.01.2004 AU 2004900376 (71) Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION Campbell, ACT 2612 (AU)	(72) Inventor: SHARMA, Sunil Dutt, CSIRO Energy Centre Mayfield West, New South Wales 2304 (AU) (74) Representative: Hocking, Adrian Niall  Marks & Clerk 27 Imperial Square Cheltenham, GL50 1RQ Cheltenham, GL50 1RQ (GB)