Design and development of refrigerated chamber for blood plasma at-40 C

Abstract

The purpose of the project is the design and implement of two stage vapor compression refrigeration cycle with intermediate vessel and double throttling , for storage of 10 kg of frozen plasma ; that used in medical applications , and save it at -35 ˚C refrigeration space.

The refrigerant R404A was selected as suitable working fluid . This system consists of two cycles connected in series , where the higher cycle operates between (-8 and 45 ˚C), and the low cycle operates between (-45 and -8 ˚C).

Full theoretical design and building of the system will be made , including the full automation for the cycle and controlling of it’s componants.