 Exergy-method analysis of a two-stage vapour-compression refrigeration-plants performanceC. Nikolaidis and D. Probert Applied Energy, 1998, vol. 60, issue 4, 256 pages Abstract: The behaviour of two-stage compound compression-cycle, with flash intercooling, using refrigerant R22, has been investigated by the exergy method. The condenser's saturation-temperature was varied from 298 to 308 K and the evaporator's saturation-temperature from 238 to 228 K. The effects of temperature changes in the condenser and evaporator on the plant's irreversibility rate were determined. The greater the temperature difference between either (i) the condenser and the environment, or (ii) the evaporator and the cold room, the higher the irreversibility rate. Any reduction in the irreversibility rate of the condenser gives approximately 2.40 times greater reduction in the irreversibility rate for the whole plant, and any reduction in the evaporator's irreversibility rate gives a 2.87 times greater mean reduction in the irreversibility rate of the whole plant. Because the changes in the temperatures in the condenser and the evaporator contribute so significantly to the plant's overall irreversibility, there is considerable scope for optimising the conditions imposed upon the condenser and evaporator. Keywords: Compound; compression-cycle; Exergy; method; Coefficient; of; structural; bond; Refrigeration; cycle (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:60:y:1998:i:4:p:241-256 Ordering information: This journal article can be ordered from Access Statistics for this article Applied Energy is currently edited by J. Yan More articles in Applied Energy from Elsevier |
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