Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Azeotrope or azeotropic composition, working medium for heat cycle, and heat cycle system

A technology of working medium and circulation system, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of large temperature gradient, poor management of working medium, difficult recovery of working medium, etc., and achieve small composition change and good circulation performance Excellent, less environmental load effect

Inactive Publication Date: 2020-03-06
AGC INC
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Further, when the composition of the working medium changes, it is difficult to restore the working medium to the initial composition
Therefore, when a zeotropic composition is used as a working medium, there is a problem that the manageability of the working medium is poor
In addition, when a zeotropic composition is used as a working medium, there is also the problem that the temperature gradient becomes larger

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Azeotrope or azeotropic composition, working medium for heat cycle, and heat cycle system
  • Azeotrope or azeotropic composition, working medium for heat cycle, and heat cycle system
  • Azeotrope or azeotropic composition, working medium for heat cycle, and heat cycle system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0175] Hereinafter, examples of the present invention will be described, but the present invention is not limited to these examples.

example 1～11

[0177] The azeotrope-like composition containing 1224yd(Z) and 1233zd(E) was prepared in the ratio shown in Table 4 as the working medium for thermal cycles in Examples 1-11. For the working medium for thermal cycle of each example, the cycle performance and temperature gradient were evaluated as follows.

[0178] (Evaluation of refrigeration cycle performance and temperature gradient)

[0179] exist figure 2 In the refrigerating cycle system 10, use the heat cycle working medium of each example respectively, to image 3 The thermal cycle shown, i.e. adiabatic compression using compressor 11 in process AB, isobaric cooling using condenser 12 in process BC, isenthalpic expansion using expansion valve 13 in process CD, and evaporation in process DA The refrigeration cycle performance (refrigeration capacity and efficiency coefficient) and the temperature gradient were evaluated as cycle performance (capacity and efficiency) when isobaric heating was performed by the container...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
aperture sizeaaaaaaaaaa
Login to View More

Abstract

Provided are: an azeotropic composition that provides a working medium that is for a heat cycle and that undergoes little compositional change, has a small temperature gradient, and has excellent cycle performance; a working medium that is for a heat cycle and uses the azeotropic composition; and a heat cycle system. An azeotrope or an azeotropic composition that comprises 1-chloro-2,3,3,3-tetrafluoropropene and (E)-1-chloro-3,3,3-trifluoropropene. A working medium that is for a heat cycle and includes the azeotrope or azeotropic composition.

Description

technical field [0001] The present invention relates to 1-chloro-2,3,3,3-tetrafluoropropene (HCFO-1224yd) and (E)-1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E)) The azeotropic or azeotrope-like composition constituted, the working medium for heat cycle and the heat cycle system using the azeotrope or azeotrope-like composition. Background technique [0002] Conventionally, it has been used as a working medium for refrigeration machines, refrigerants for air conditioners, working medium for power generation systems (waste heat recovery power generation, etc.), working medium for latent heat transport devices (heat pipes, etc.), secondary cooling medium, etc. , using chlorofluorocarbons (CFC) such as chlorotrifluoromethane and dichlorodifluoromethane, and hydrochlorofluorocarbons (HCFC) such as chlorodifluoromethane. However, CFCs and HCFCs have been pointed out to have an impact on the stratospheric ozone layer, and are currently subject to regulation. [0003] For this r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/04
CPCC09K5/04C09K5/045C09K2205/126
Inventor 福岛正人
Owner AGC INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com