Analysis of the Flow and Regeneration Characteristics of Screen Mesh and Parallel Wire Regenerators

Article Preview

Abstract:

An analysis has been made for the flow and regeneration characteristics in screen mesh and parallel wire regenerators. A model is put forward by taking the matrix as an anisotropic porous medium. The regeneration characteristics are investigated by comparing the Nu, hsf and NTU between the both regenerators under oscillating flow conditions. It is indicate that the heat transfer performance in screen mesh regenerator is better than the one in parallel wire regenerator at the same oscillating flow condition. The mass flow distribution homogeneity factor Fm is conceived and derived to reflect the gas flow distribution in the porous matrix, and heat penetration depth δt and porosity are also indicated to be the indexes of optimizing the matrix geometry.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

1285-1289

Citation:

Online since:

December 2010

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Uri Bin-Nun, Dan Manitakos. Low cost and high performance screen laminate regenerator matrix. Cryogenic, 44(2004). p.439~444.

DOI: 10.1016/j.cryogenics.2004.03.015

Google Scholar

[2] Robert A. Ackermann. Cryogenic Regenerative Heat Exchangers. New York: Plenum Press, (1997) . p.47~48.

Google Scholar

[3] Ping-Hei Chen, Zei-Chi Chang, B.J. Huang. Effect of oversize in wire-screen matrix to the matrix-holding tube on regenerator thermal performance. Cryogenics, 35(1996). p.365~372.

DOI: 10.1016/0011-2275(96)81107-6

Google Scholar

[4] Ping-Hei Chen, Zei-Chi Chang. Measurements of thermal performance of cryocooler regenerators using an improved single-blow method. Inter- national Journal of Mass and Heat Transfer, 10(1997). p.2341~ 2349.

DOI: 10.1016/s0017-9310(96)00300-6

Google Scholar

[5] K. Muralidhar, K. Suzuki. Analysis of flow and heat transfer in a regenerator mesh using a non-Darcy thermally non-equilibrium model. Inter- national Journal of Heat and Mass Transfer, 44(2001). p.2493~2504.

DOI: 10.1016/s0017-9310(00)00285-4

Google Scholar

[6] Sungryel Choi, Kwanwoo Nam, Sangkwon Jeong. Investigation on the pressure drop characteristics of cryocooler regenerators under oscillating flow and pulsating pressure conditions. Cryogenics, 44(2004). p.203~210.

DOI: 10.1016/j.cryogenics.2003.11.006

Google Scholar

[7] Kwanwoo Nam, Sangkwoo Jeong. Novel flow analysis of regenerator under oscillating flow with pulsating pressure. Cryogenics, 45(2005). p.368~379.

DOI: 10.1016/j.cryogenics.2005.01.001

Google Scholar

[8] Kwanwoo Nam, Sangkwon Jeong. Investigation of oscillating flow friction factor for cryocooler regenerator considering cryogenic temperature effect . Cryogenics, 45(2006). p.733~738.

DOI: 10.1016/j.cryogenics.2005.07.003

Google Scholar

[9] Y. B Tao, Y.W. Liu, F. Gao, X.Y. Chen, Y.L. He. Numerical analysis on pressure drop and heat transfer perform- ance of mesh regenerators used in cryocoolers. Cryogenics, 49(2009). p.497~503.

DOI: 10.1016/j.cryogenics.2009.07.003

Google Scholar

[10] Kwanwoo Nam, Sangkwon Jeong. Development of parallel wire regenerator for cryocoolers. Cryogenics, 46(2006) p.278~287.

DOI: 10.1016/j.cryogenics.2005.12.005

Google Scholar

[11] S.A. Khashan, A.M. Al-Amiri, I. Pop. Numerical simulation of natural convection heat transfer in a porous cavity heated from below using a non-Darcian and thermal non-equilibrium model. Inter- national Journal of Heat and Mass Transfer. 49(2006).

DOI: 10.1016/j.ijheatmasstransfer.2005.09.011

Google Scholar

[12] Gedenon D. Baseline Stirling modeling. Athens(OH): Gedeon Associates. (1999).

Google Scholar