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Heat transport medium and heat transport system

A technology of heat transfer and media, which is applied in the field of heat transfer media and heat transfer systems, and can solve problems such as increased heat transfer resistance and insufficient cooling performance of low-temperature cooling water

Pending Publication Date: 2021-10-08
DENSO CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of taking such waterproof measures, the resistance to movement of heat may increase, and the cooling performance of low-temperature cooling water may be insufficient.

Method used

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  • Heat transport medium and heat transport system
  • Heat transport medium and heat transport system
  • Heat transport medium and heat transport system

Examples

Experimental program
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Embodiment Construction

[0017] Hereinafter, the most preferable embodiment of the heat transport system to which the present invention is applied will be described based on the drawings.

[0018] The heat transfer system 1 of the present embodiment is installed in an electric vehicle that obtains driving force for vehicle running from a running electric motor. The heat transfer system 1 may also be mounted on a hybrid vehicle that obtains driving force for vehicle running from an engine (in other words, an internal combustion engine) and a running electric motor. The heat transfer system 1 of the present embodiment functions as an air conditioner that adjusts the temperature of the vehicle interior space, and functions as a temperature adjustment device that adjusts the temperature of the battery 33 and the like mounted on the vehicle.

[0019] Such as figure 1 As shown, the heat transfer system 1 has a refrigeration cycle device 10 , a high-temperature medium circuit 20 and a low-temperature medium...

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Abstract

The present invention provides a heat transport medium used in a heat transport system comprising a refrigeration cycle device (10) in which a refrigerant is circulated and a heat transport medium circuit (30) provided with devices (33-35) to be cooled. The heat transport medium is circulated through a heat transport medium channel, cooled by heat exchange with the refrigerant, and caused to absorb heat from the devices to be cooled. The heat transport medium is a carboxylate aqueous solution in which carboxylates are dissolved in water. Using a carboxylate aqueous solution as the heat transport medium makes it possible to achieve a low viscosity at low temperatures. A carboxylate aqueous solution has a high heat exchange efficiency, therefore making it possible to improve the cooling performance of the heat transport medium.

Description

technical field [0001] The invention relates to a heat transmission medium and a heat transmission system. [0002] Cross-references to related applications [0003] This application is based on Japanese Patent Application No. 2019-21282 filed on February 8, 2019, the contents of which are described herein. Background technique [0004] Patent Document 1 describes a device that uses a chiller to exchange heat between the refrigerant in the refrigeration cycle and the low-temperature cooling water in the low-temperature cooling water circuit to cool the low-temperature cooling water. In this apparatus, an aqueous solution of ethylene glycol or the like is used as low-temperature cooling water. [0005] prior art literature [0006] patent documents [0007] Patent Document 1: Japanese Patent Laid-Open No. 2017-110898 [0008] However, since the viscosity of ethylene glycol aqueous solution becomes high at low temperature, the pressure loss of the low-temperature cooling ...

Claims

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Application Information

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IPC IPC(8): F25B29/00F25B1/00C09K5/10C09K5/20H05K7/20
CPCF25B1/00H05K7/20F25B29/00C09K5/10C09K5/20B60H1/32284Y02E60/10H01M10/613H01M10/6568H01M2220/20H01M10/663Y02P20/10H01M10/6569B60H1/00278
Inventor 布施卓哉山田辉铃木和参
Owner DENSO CORP
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