Subject : Refrigeration and Air Conditioning

Topic : Vapour Compression Refrigeration System

Difficulty : Medium

• Applications like cold storages, liquefaction of gases, chemical industries etc. demand very low evaporator temperatures and pressures, reaching even up to -150°C in some cases.
• Hence difference between condenser and evaporator pressure increases. So when pressure ratio required is more than 8 to 10, a single stage vapour compression cycle …