# i want to know the alternatives for the refrigerant R11 which is available in india now..

i will be helpful if i get the all the properties of the alternate refrigerant............and if i get the p-h diagram for thesame..

i will be helpful if i get the all the properties of the alternate refrigerant............and if i get the p-h diagram for thesame..

I'm not sure about R-11, but Wikipedia has some pretty good info on refrigerants, here:

http://en.wikipedia.org/wiki/Refrigerant

http://en.wikipedia.org/wiki/List_of_refrigerants

http://en.wikipedia.org/wiki/Trichlorofluoromethane

http://en.wikipedia.org/wiki/Dichlorodifluoromethane

http://en.wikipedia.org/wiki/Propane

BTW, you can get an approximation of what the liquid-gas line of the phase diagram should look like using the Clausius–Clapeyron relation. That is you start with two numbers: boiling point (at 1 atm) and ΔH of vaporization, and you can use these to calculate P as a function of T.

http://en.wikipedia.org/wiki/Clausius%E2%80%93Clapeyron_relation

http://en.wikipedia.org/wiki/Isobutane

http://www.boconline.co.uk/products/products_by_type/refrigerant_gases/index.asp