Error, click for more details
Click to see notifications
Error, click for more details
Error
The specified file temporary://fileuvGT2X could not be copied, because the destination directory is not properly configured. This may be caused by a problem with file or directory permissions. More information is available in the system log.

Options to Chloroflurocarbons

ipsita's picture
Submitted by ipsita on Fri, 1993-12-31 00:00

The problem coolant:CFCs-To be phased out ine developing world by 2010 under the Montreal Protocol on Substances that deplete the Ozone Layer. Deplete the Ozone Layer. Deadlines could be advanced by 4 years.



The possible substitutes In favour Against
Hydrochloroflurocarbons such as HCFC-22 Can only be a temporary substitute to CFCs because they too... ...have a definite ozone-depleting potential (ODP).
Hydroflurocarbons

    1. HFC-134a

 Zero ODP Substantive global warming potential (GWP). Requires changes in compressor design and new lubricating oils. Expensive and protected by patents held by Western companies.
    2. HFC-152a Does not require special lubricating oils Toxic and flammable. Rejected by US, so not attractive to exporters.
Hydrocarbons such as a mix of propane and isobutane Zero ODP. GWP is one-hundredth of HCF-134a. Requires minir changes in compressor design. Easy availability at prices one-tenth that of HCF-134a. Inflammable. Difficult to make a freezer compartment in a fridge.

.

Main Topic: 
India
thesaurus: 
Green Products
Ozone Layer
Global Warming
Europe
India
Name of the Newspaper: 
Down To Earth
Clipping Type: 
External URL: 
Main Type: 
dte
Publication Date: 
30/12/1993