I want to design a a home made cold storage, where i am using R22 for dropping -5degree temparature. Total cooling load is 225kw.I using 1 inch dia cupper tube and reciprocating compressor(suction stroke 20kg supply stroke 1kg).Can any body tell if i use capillary expantion,what should be the mimimum dia and length of the cupper tube(Both part of the capplarity will be connected to 1 inch cupper tube to complete the refrigeration cycle)and how to determine the amount of the refrigeration for this system