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Studies on an improved indigenous pressure wave generator and its testing with a pulse tube cooler

Jacob, S and Karunanithi, R and Narsimham, GSVL and Kranthi, Kumar J and Damu, C and Praveen, T and Samir, M and Mallappa, A (2013) Studies on an improved indigenous pressure wave generator and its testing with a pulse tube cooler. In: Advances in Cryogenic Engineering, 17–21 June 2013, Anchorage, Alaska, USA.

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Official URL: http://dx.doi.org/10.1063/1.4860727

Abstract

Earlier version of an indigenously developed Pressure Wave Generator (PWG) could not develop the necessary pressure ratio to satisfactorily operate a pulse tube cooler, largely due to high blow by losses in the piston cylinder seal gap and due to a few design deficiencies. Effect of different parameters like seal gap, piston diameter, piston stroke, moving mass and the piston back volume on the performance is studied analytically. Modifications were done to the PWG based on analysis and the performance is experimentally measured. A significant improvement in PWG performance is seen as a result of the modifications. The improved PWG is tested with the same pulse tube cooler but with different inertance tube configurations. A no load temperature of 130 K is achieved with an inertance tube configuration designed using Sage software. The delivered PV power is estimated to be 28.4 W which can produce a refrigeration of about 1 W at 80 K.

Item Type: Conference Proceedings
Additional Information: Copyright for this article belongs to the AIP.
Keywords: Pressure Wave Generator;Pulse tube cooler;Inertance
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Division of Physical & Mathematical Sciences > Centre for Cryogenic Technology
Depositing User: ePrints Administrator ePrints@IISc
Date Deposited: 05 May 2014 12:22
Last Modified: 05 May 2014 12:22
URI: http://eprints.iisc.ac.in/id/eprint/49064

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