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4213 — Cold Energy Release Characteristics of an Ice/Air Direct Contact Heat Exchanger

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Conference Proceeding by ASHRAE, 1998

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Description

This paper deals with the cold energy release characteristics of an ice/air direct contact heat exchanger in a refined cold energy conveyance system. Characteristics of the outlet temperature, the humidity, and time history of released heat are examined when the initial height of the ice-cube-packed bed in the heat exchanger is changed. The following are the results obtained in these experiments: (1) Inlet air of 30°C is lowered to about 0°C by passing the air through the heat exchanger, and absolute humidity of the outlet air is reduced to about a quarter of that of the inlet air. (2) There is an optimum height of the ice-cube-packed bed for maximizing the amount of cold energy released. (3) This heat exchange method can supply about twice the amount of cold energy released by an ordinary fin-tube-type heat exchanger even if the air velocity in the heat exchanger is reduced to about 0.38 times that of the fin-tube-type heat exchanger.

Units: SI

Citation: ASHRAE Transactions, 1998, Vol. 104, Part 2, Toronto, ON

Product Details

Published:
1998
Number of Pages:
8
File Size:
1 file , 180 KB
Product Code(s):
D-7680