Hi everyone, I have just recently come across this site. Currently I知 a college student and left in charge of designing a domestic home refrigerator. Please forgive me if some of the questions I知 about to ask are unclear or information is missing because I知 really new to all this. My question is how do I size my fan (not sure how much cfm I need) and find the overall heat transfer coefficient for a refrigerators condenser. My know values are the temperature changes (hot and cold fluids), refrigerant R-134a, mass flow rate of refrigerant, condenser operating temp. and pressure, how much heat needs to be rejected from the condenser and I would like to use a fin and tube condenser. Hopefully I supplied enough info. and if anyone has some help thanks very much!