Cooling power efficiency diagrams for a compressor-driven metal hydride heat pump.

Author(s) : LLOYD G. M., RAZANI A., KIM K. J., FELDMAN K. T., WAY T. R.

Summary

Finite-time thermodynamics is used to develop cooling power/efficiency diagrams for a compressor-driven metal hydride refrigerator. The two most important parameters, resistance to heat transfer between the reactors and the reservoirs and the thermal capacities of the system, are included in the analysis in a detailed and realistic way. A simple quasi-steady-state model is used to investigate this effect and its relation to cooling power and efficiency of the system. Another interesting aspect is that increased finning outside the reactors reduces the efficiency, a trade-off exists between cooling power and COP. The effect of compression ratio on the system performance is also investigated.

Details

Original title: Cooling power efficiency diagrams for a compressor-driven metal hydride heat pump.
Record ID : 1998-1640
Languages: English
Source: ASHRAE Transactions.
Publication date: 1997
Document available for consultation in the library of the IIR headquarters only.

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Indexing

Themes: Absorption and adsorption systems;
Other refrigerating systems (desiccant cooling, thermoelectrics, thermoacoustics…)
Keywords: Thermodynamics; Refrigerating system; Calculation; Metal hydride; Diagram; Design; Efficiency; Absorption system; Compression system; Performance; Hydrogen; Compressor