Numerical Fluid Analysis of Pumping Loss
Numerical Fluid Analysis of Pumping Loss
- New search for: Naka, K.
- New search for: Inaguchi, T.
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- New search for: Yoshimura, H.
- New search for: Naka, K.
- New search for: Inaguchi, T.
- New search for: Nagao, M.
- New search for: Yoshimura, H.
Abstract This paper describes a numerical fluid analysis of pumping loss. As a result of the calculations, it was found that the pumping loss becomes small as the low end temperature of the clearance increases, and the pumping effect begins to contribute to the cooling capacity when the low end temperature increases to more than 215 K. In the clearance, the working fluid discharges heat in the high temperature part and absorbs heat in the low temperature part. It becomes a loss when the heat absorbed in the low temperature part is larger than the heat discharged in the high temperature part, while it contributes to the cooling capacity when the heat discharged is larger than the heat absorbed. We also examined the effects of various parameters on the pumping loss. As a result, we found that the pumping loss increases to a maximum value as the clearance increases, and that it also increases as the frequency increases.
Document information
Numerical Fluid Analysis of Pumping Loss
Cryocoolers 10 ; 603-610
2002-01-01
8 pages
Article/Chapter (Book)
Electronic Resource
English
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