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Compositions comprising iodotrifluoromethane and uses thereof

A technology of trifluoroiodomethane and composition, applied in the field of low-GWP refrigerant composition, capable of solving problems such as no ozone depletion

Inactive Publication Date: 2010-09-15
EI DU PONT DE NEMOURS & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

HFC working fluids adopted as CFC replacements have no ozone depletion potential but have been found to contribute to global warming

Method used

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  • Compositions comprising iodotrifluoromethane and uses thereof
  • Compositions comprising iodotrifluoromethane and uses thereof
  • Compositions comprising iodotrifluoromethane and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0123] Cooling Performance Data

[0124] Table 5 shows the refrigeration performance of the compositions described herein compared to R507A and R22 (HCFC-22) for low and medium temperature refrigeration systems, such as energy efficiency (COP), cooling capacity (CoolCap), compressor outlet pressure (Dis Press), compressor suction pressure (Suct Press), and compressor discharge temperature (Dis T). In addition, the average temperature glide (Avg glide, which is the average glide of the evaporator and compressor) is also included. Finally, GWP values ​​were calculated from the GWP values ​​of the individual component 100-year time domain values.

[0125] The data for the compositions of the invention are provided for R507A (blend of 50% by weight R125 and 50% by weight R143a (1,1,1-trifluoroethane)), R404A (44% by weight R125, 52% by weight A blend of R143a and 4.0% by weight R134a) and R22 (difluorochloromethane, CHF 2 Cl) comparison.

[0126] Performance data is based on...

Embodiment 2

[0138] Air Conditioning Performance Data

[0139] Table 6 shows the refrigeration performance of the compositions described herein compared to R410A and R22 (HCFC-22) for stationary air conditioning systems, such as energy efficiency (COP), cooling capacity (CoolCap), compressor outlet pressure ( Dis Press), compressor suction pressure (Suct Press), and compressor discharge temperature (Dis T). In addition, the average temperature glide (Avg glide, which is the average glide of the evaporator and compressor) is also included. Finally, GWP values ​​were calculated from the GWP values ​​of the individual component 100-year time domain values.

[0140] The data for the compositions of the present invention are provided for R410A (a blend of 50 wt% R125 and 50 wt% R32), R407C (a blend of 25 wt% R125, 23 wt% R32, and 52 wt% R134a) , and R22 (difluorochloromethane, CHF 2 Cl) comparison.

[0141] Performance data is based on the following conditions:

[0142] Evaporator temper...

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Abstract

Disclosed are compositions comprising iodotrifluoromethane and other compounds that are useful as heat transfer fluids, including refrigerants, in a stationary air conditioning or refrigeration system, a flooded evaporator chiller or a direct expansion chiller. Also disclosed are methods for producing cooling and methods for replacing R22, R407C, R410A, R404A or R507A in such equipment.

Description

Background technique [0001] 1. Field of invention. [0002] The present disclosure is in the field of low GWP refrigerant compositions comprising trifluoroiodomethane. These compositions can be used as low GWP alternatives in equipment designed for R22, R407C, R410A, R404A or R507A, including stationary air conditioning or refrigeration systems, flooded evaporative coolers or direct expansion coolers . [0003] 2. Background technology. [0004] There is a continuing search for working fluids that can be used in a variety of applications with minimal if any impact on the environment. Hydrofluorocarbon working fluids, adopted as replacements for chlorofluorocarbons, have no ozone depletion potential but have been found to contribute to global warming. [0005] Accordingly, alternatives to hydrofluorocarbons currently used as refrigerants, heat transfer fluids, cleaning solvents, aerosol propellants, foam blowing agents, and fire extinguishing or suppressing agents continue ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/04
CPCC09K5/045C09K2205/12A61L2/206C09K2205/122
Inventor D·珀蒂
Owner EI DU PONT DE NEMOURS & CO
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