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Refrigeration system, compressing and heat-releasing apparatus and heat-releasing device

A technology for refrigeration systems and thermal devices, applied in lighting and heating equipment, refrigeration and liquefaction, refrigerators, etc., can solve problems such as adverse effects, achieve high reliability, sufficient durability, and prevent defects.

Inactive Publication Date: 2005-12-14
SHOWA DENKO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Therefore, in the case where a low-heat-resistant aluminum heat radiator used in a car air-conditioning refrigeration system is used as th

Method used

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  • Refrigeration system, compressing and heat-releasing apparatus and heat-releasing device
  • Refrigeration system, compressing and heat-releasing apparatus and heat-releasing device
  • Refrigeration system, compressing and heat-releasing apparatus and heat-releasing device

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0131] exist figure 1 In the refrigeration system shown, through computer simulation, the relationship between the temperature efficiency (temperature effectiveness) of the heat release device 60 and its cooling capacity (kw), as well as the temperature efficiency of the heat release device 60 and its refrigeration coefficient can be respectively obtained (cooling capacity / compression power) relationship.

[0132]

[0133] exist Figure 7 In the traditional refrigeration system shown, through computer simulation, the relationship between the temperature efficiency of the heat radiation device 102 and its cooling capacity (kw), and the relationship between the temperature efficiency of the heat radiation device 102 and its refrigeration coefficient can be respectively obtained .

[0134] Figure 4 The graph of is showing the results of Example 1 and Comparative Example above.

[0135] As can be clearly seen from the graph, the refrigeration system of Example 1 relating to...

example 2

[0141] exist figure 1 In the refrigeration system shown, the relationship between the capacity ratio of the primary heat radiation part 61 with respect to the total capacity of the heat radiation part of the heat radiation device 60 and the refrigeration coefficient can be obtained through computer simulation.

[0142] Figure 5 The graph of the graph shows the result.

[0143] As is clear from this graph, when the capacity ratio of the primary heat radiation portion 61 falls within the range of 0.1 to 0.5, especially 0.3 or less, an excellent cooling coefficient can be obtained.

example 3

[0145] exist figure 1 In the refrigeration system shown, the relationship between the capacity ratio of the primary heat radiation part 61 relative to the entire capacity of the heat radiation part of the heat radiation device 60 and the inlet temperature of the secondary heat radiation part 62 can be obtained by computer simulation.

[0146] Figure 6 The graph of the graph shows the result.

[0147] As is clear from this graph, the inlet temperature of the secondary heat radiation portion 62 is lower in a region where the capacity ratio of the primary heat radiation portion 61 is 0.2 or more.

[0148] As can be understood from the results of the above graph, it is preferable to set the capacity ratio of the primary heat radiation portion 61 to the total capacity of the heat radiation portion at 0.2 (20%) to 0.5 (50%), more preferably 0.3 (30%). %) or less.

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Abstract

PROBLEM TO BE SOLVED: To provide a refrigerating system, holding down the temperature of a refrigerant in a radiating process. Ž

SOLUTION: This refrigerating system includes: a two-stage compressor 50 having low-pressure and high-pressure compressing mechanism parts 51, 52 independent of each other; a radiator 60 having primary and secondary radiating passages 61, 62 independent of each other; an expansion valve 72 and a cooling device 73. The primary compressed refrigerant is primarily radiated from the low-pressure compressing mechanism part 51 by the primary radiating passage 61, the primarily radiated refrigerant is secondarily compressed by the high-pressure compressing mechanism part 52, the secondarily compressed refrigerant is secondarily radiated by the secondary radiating passage 62 to put the refrigerant in the low-temperature and high-pressure state. The low-temperature and high-pressure refrigerant is reduced in pressure and expanded by an expansion valve 72, passed through the cooling device 73 to absorb heat from the cabin air and returned to the low-pressure compressing mechanism part 51 of the compressor 50. Ž

COPYRIGHT: (C)2006,JPO&NCIPI Ž

Description

[0001] This application claims the benefit of Japanese Patent Application No. 2002-309103, filed October 24, 2002, and U.S. Provisional Application No. 60 / 428921, filed November 26, 2002, the entire disclosures of which are incorporated herein by reference Application reference. [0002] Cross References to Related Applications [0003] This application is an application filed under 35 U.S.C. §111(a) and claims the filing-date benefit of provisional application No. 60 / 428921 under 35 U.S.C. §119(e)(1), which was filed under 35 U.S.C. §111(b) filed November 26, 2002. technical field [0004] The present invention relates to a method preferably applied to the use of CO 2 The refrigeration system of the refrigeration cycle of the refrigerant also relates to a compression and heat release device and a heat release device preferably applied to the refrigeration system. Background technique [0005] The following description clarifies the inventor's knowledge of the relevant te...

Claims

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Application Information

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IPC IPC(8): F25B1/00
CPCF25B1/10F25B2309/061
Inventor 武幸一郎新村悦生古川裕一
Owner SHOWA DENKO KK
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