Cold energy release characteristics of an ice/air direct contact heat exchanger

Autor:	Yuji Tsubota, Akiyoshi Ohira, Michio Yanadori, Kunihiko Iwabuchi, Toshikatsu Kimura
Rok vydání:	2001
Předmět:	Fluid Flow and Transfer Processes Materials science NTU method Sigma heat Heat spreader Heat transfer Heat exchanger Plate heat exchanger Thermodynamics Mechanics Condensed Matter Physics Concentric tube heat exchanger Shell and tube heat exchanger
Zdroj:	Heat Transfer?Asian Research. 30:95-113
ISSN:	1523-1496 1099-2871
Popis:	This paper deals with the cold energy release characteristics of an ice/air direct contact heat exchanger. Characteristics of the outlet temperature, humidity, and time history of heat release are examined when the initial height of the ice-cube-packed bed in the heat exchanger is changed. The following results were obtained in these experiments: (I) Inlet air of 30 °C is lowered to about 0 °C when passed through the heat exchanger, and the 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 to maximize the amount of cold energy release. (3) This heat exchange method can supply about twice as much cold energy as is 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. (4) A nondimensional correlation equation for predicting the time taken for the ice-cube-packed bed to completely melt is derived.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::08bbc2200fb5e9eecb066d9cbb6c3221 https://doi.org/10.1002/1523-1496(200103)30:2<95::aid-htj2>3.0.co Zobrazit plný text záznamu Plný text