Properties of Good Refrigerant

In this video,I have explained Refrigerant selection criteria OR
Properties of Refrigerant. In this I explained various properties of refrigerant and how to select refrigerant for desire condition.

Thermodynamic properties of refrigerants.
- Boiling point
- Freezing point (below evaporator temp)
- Evaporating pressure (slightly above atm pressure)
- Condensing pressures (slightly above atm pressure)
- latent heat of vaporisation
- critical temperature and pressure (above condensing temp)
- Compression ratio (small as possible)
Chemical properties of refrigerant.
- Toxicity
- Leak detection
- Flammability
- Miscibility with oil
- Effect on foodstuff
- Stability
Physical properties of refrigerant.
- corrosive properties
- Viscosity
- Thermal conductivity
- Dielectric strength
Environmental and safety properties:
- Ozone Depletion Potential (ODP)
- Global Warming Potential (GWP)
- Total Equivalent Warming Index (TEWI)