Title:
VAPOR COMPRESSION COOLING SYSTEM
Document Type and Number:
Japanese Patent JP3138438
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an evaporator a portion of which is operated in a falling liquid film heat transfer method and another portion of which is operated in an immersion heat transfer method at the time of a stable operation of a refrigerating system, by a method wherein the liquid level of a refrigerant in an outer shell is held at a level which makes a specified percentage of horizontal tubes immersed in the liquefied refrigerant.
SOLUTION: A refrigerant which flows into an evaporator 50 through an inlet 74 by way of an inlet conduit 78 passes through a distribution system 80 which is made of a plurality of nozzles 82 disposed horizontally above the uppermost positioned tubes of a second group of tubes 72. In a stable operating condition, a closed loop of a refrigerating flow in a system 10 is formed such that the liquid level 51 of a liquefied refrigerant in the outer shell 52 is positioned at a level where at least 25 percent of a plurality of horizontal heat transfer tubes located close to the lower end of the shell is immersed in the refrigerant. Accordingly, the evaporator 50 is operated such that the tubes which are disposed at the lower side portion of the evaporator are operated in an immersion heat transfer method while the tubes which are not immersed in the liquefied refrigerant are operated in a falling liquid film heat transfer method.
Inventors:
Robert H. Chung
Jack El. S Forms
Edward A. Hüniger
Jack El. S Forms
Edward A. Hüniger
Application Number:
JP31790597A
Publication Date:
February 26, 2001
Filing Date:
November 19, 1997
Export Citation:
Assignee:
CARRIER CORPORATION
International Classes:
F25B39/02; F28D3/00; F28D5/02; F28D7/10; F28D7/16; (IPC1-7): F25B39/02; F28D5/02
Domestic Patent References:
| JP60122870A | ||||
| JP735420A | ||||
| JP6199096A | ||||
| JP62162868A | ||||
| JP4860150U | ||||
| JP427469B2 |
Attorney, Agent or Firm:
Fujiya Shiga (2 outside)