Thermal, Chemical and Physical properties of Refrigerant

I.                   Thermodynamics properties

·         Should have low boiling point

·         Should have  low freezing point

·         Should have a positive evaporator and condenser pressure

·          Should have high critical temperature and pressure

·         Should most have high latent heat of vaporization

·         Should have a low specific volume

II.               Chemical properties

·          Should have non flammable

·         Should have non toxic

·         Should have easily mix with oil

·         Should have low Solubility of water

·         Should have no effect of store products

III.            Physical properties

·         should have stable pressure and temperature

·         Should have low viscosity

·         Should have high thermal conductivity

·         Should have non corrosive

·         Should have die-electric to protect from short circuit

·         Should have high performance of system

·         Should have low cost

·         Should have low leakage tendency and easily detective