Energy savings and economic benefits of using electronic expansion valves in supermarket display cabinets

R. Lazzarin, D. Nardotto and M. Noro

International Journal of Low-Carbon Technologies, 2008, vol. 3, issue 3, 147-157

Abstract: This paper reports on the energetic and economic comparison between electronic and thermostatic expansion valves in a centralized refrigeration plant of a supermarket. Adopting electronic expansion valves enables an appreciable energy saving, due to the fact that electronic valves allow a lower condensation pressure in systems equipped with air cooled condensers, which is adjusted to variations in outside air temperature. Furthermore, superheating at the evaporator is lower and more stable, increasing cooling capacity and decreasing refrigerant temperature at the compressor discharge (the latter ensures better efficiency and lower wear and tear for the compressor). Copyright , Manchester University Press.

Date: 2008
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Persistent link: https://EconPapers.repec.org/RePEc:oup:ijlctc:v:3:y:2008:i:3:p:147-157

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