Compound VCRS.

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Presentation transcript:

Compound VCRS

Actual / Practical VCRS on p-h chart

Actual / Practical VCRS on T-s chart

Effect of evaporator temperature on cycle performance (T-s diagram)

Effect of evaporator temperature on cycle performance (P-h diagram)

Multi stage system It is a refrigeration system with two or more low-side pressures. Multi-compression systems Flash gas removal Intercooler Multi-evaporator systems Individual expansion valve Multiple expansion valve Cascade systems

Working principle of a Flash Tank

Intercooling using external water cooled heat exchanger

Intercooling in two-stage compression

Intercooling using liquid refrigerant in flash tank

Two-stage vapour compression refrigeration system with flash gas removal using a flash tank and intercooling

Two-stage vapour compression refrigeration system with flash gas removal using a flash tank and intercooling

Refrigeration system with liquid subcooler

A two-stage compression system with flash tank for flash gas removal only

A two-stage compression system with flash tank for flash gas removal only

A two-stage compression system with the flash tank used for intercooling only

A two-stage compression system with the flash tank used for intercooling only

Multi-evaporator system with single compressor and individual expansion valves

Multi-evaporator system with single compressor and individual expansion valves

Multi-evaporator system with single compressor and multiple expansion valves

Multi-evaporator system with single compressor and multiple expansion valves

Multi-evaporator system with multiple compressors and a flash tank for flash gas removal and intercooling

Multi-evaporator system with multiple compressors and a flash tank for flash gas removal and intercooling

Multi-evaporator system with individual compressors and multiple expansion valves

Multi-evaporator system with individual compressors and multiple expansion valves

A three-stage compression system with flash tank for flash gas removal only

A three-stage compression system with individual expansion and the flash tank used for intercooling only

A three-stage compression system with multiple expansion and the flash tank used for intercooling only

Multi-evaporator system with single compressor and multiple expansion valves

Multi-evaporator system with compound compressor, individual expansion valves and flash intercoolers

Multi-evaporator system with compound compressor, individual expansion valves and flash intercoolers

Multi-evaporator system with compound compressor, multiple expansion valves and flash intercoolers

Multi-evaporator system with compound compressor, multiple expansion valves and flash intercoolers

PROBLEM - 1

PROBLEM - 2

PROBLEM - 3

Cascade refrigeration