As the energy is the most fundamental before technology, its the basic element which affects the price as well as the overall economy of the industry. And we know that the conventional source of energy is continuously decreasing and in today,s world non-conventional energy is gaining high importance, thus solar energy is of great interest to the scientists of the world. Another threat to the whole world is ozone layer depletion potential and the global warming potential. Use of a solar cooling system could be the best solution to this problem. And one must get motivated work on Hydrofluoro Olefin (HFO) as its almost unexplored and has tremendous potential in the future world and could be a replacement of ammonia (R-717). Unlike ammonia, HFO has a very low effect on global warming, this feature is common for its contribution to global warming and it is not greater than CO2, HFC's and other common refrigerants. It is mainly due to their short lifespan that is within a couple of weeks for most of the HFO's.