Comparison between VCR and VAR
Contents
Difference between Vapor Compression and Vapor Absorption System with Comparison Chart
Summary:
The major Difference between Vapor Compression and Absorption System is that Vapor Absorption System takes in low-grade energy as waste heat from the furnace, exhaust steam, or solar heat for its operations. Vapor compression system takes in high grades as electrical or mechanical energy for its operation of compressor used in the cycle.
Comparison Chart
| Particulars | Vapour compression | Vapour Absorption |
|---|---|---|
| Working method | Refrigerant vapor is compressed |
Refrigerant is absorbed and heated |
| Type of the energy Supplied | Mechanical work supply to the compressor | Heat energy supply to the generator |
| Input work required | More compression work is required. | Less mechanical energy is required to run pump. |
| COP | High (Approx. 3) | Low (Approx. 0.6) |
| Capacity | Limited up to 1000 tons for single compressor | It may be above 1000 tons |
| Noise | More | Quiet operation |
| Leakage | More leakage due to high pressure |
Almost there is no Leakage |
| Operating cost | High because of compressor consumes more work |
Less because of less heat energy is required |
| Suitable refrigerant | R-12 | Ammonia |
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