A thermodynamic analysis was performed on a single-stage vapour absorption refrigeration system W A R S ) operating with monochlorodifluouromethane (HCFC22) as a refrigerant and dimethylether of tetraethyleneglycol (DMETEG) or dimethyl acitamide (DMA) as a working fluid. Influence of solution heat e
HCFC22-based vapour absorption refrigeration system: Part I: Parametric studies
โ Scribed by M. FATOUH; S. SRINIVASA MURTHY
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 885 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0363-907X
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โฆ Synopsis
Influence of operating temperatures at generator, absorber, condenser and evaporator on the performance of a single-stage vapour absorption refrigeration system (VARS) working with HCFC22-DMA, HCFC22-DMF and HCFC22-DMETEG pairs as working fluids is studied by performing thermodynamic analysis. Variations of circulation ratio (CR), heat load at each component, Carnot and thermodynamic coefficients of performance (COP,, and COP,,,) and second law efficiency ( E ) at various operating parameters are reported. It is deduced that the CR, COP,,, and E decrease with T' while COP,,, decreases and CR and increases with To and T,. Also, CR values are lower whereas COP,,, and values are higher at high T,. HCFC22-DMETEG yields the lowest value of CR at low heat source temperature while the change in CR between the considered pairs is negligible at high heat source temperature. HCFC22-DMA stands out when both COP,, and E are included.
๐ SIMILAR VOLUMES
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