Hi everyone.I am an engineering student in bangladesh doing an undergraduate thesis.My thesis topics is to construct a refrigerator based on the principle of vapor compression refrigeration system.I have calculated the total cooling load.But i cannot figure it out how to calculate the length of the condenser and evaporator length based on the cooling load.Please some one help me.My designed compressor is .2 hp.Using capillary tube as expansion device and using R-12 refrigerant.