Evaluation of mechanical losses in a linear motor pressure wave generator

Jacob, S and Karunanithi, R and Kumar, Kranthi J and Damu, C and Achanur, M and Jagadish, G and Gour, AS (2012) Evaluation of mechanical losses in a linear motor pressure wave generator. In: Advances in Cryogenic Engineering: Transactions of the Cryogenic Engineering Conference - CEC, 13–17 June 2011, Spokane, Washington, USA, pp. 1226-1233.

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Abstract

A moving magnet linear motor compressor or pressure wave generator (PWG) of 2 cc swept volume with dual opposed piston configuration has been developed to operate miniature pulse tube coolers. Prelimnary experiments yielded only a no-load cold end temperature of 180 K. Auxiliary tests and the interpretation of detailed modeling of a PWG suggest that much of the PV power has been lost in the form of blow-by at piston seals due to large and non-optimum clearance seal gap between piston and cylinder. The results of experimental parameters simulated using Sage provide the optimum seal gap value for maximizing the delivered PV power.

Item Type:	Conference Proceedings
Series.:	AIP Conference Proceedings
Publisher:	American Institute of Physics
Additional Information:	Copyright of this article belongs to American Institute of Physics.
Keywords:	Pressure Wave Generator; Clearance Seal Losses; Pulse Tube Cooler; Sage
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for Cryogenic Technology
Date Deposited:	05 Mar 2013 06:17
Last Modified:	14 Mar 2013 10:08
URI:	http://eprints.iisc.ac.in/id/eprint/45410

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