Maintenance and Long‐term Operation of Supermarkets and Minimizing Refrigerant Leakage

An investigation of refrigerant leakage in commercial refrigeration

“…It describes the methodology used in developing a refrigerant leakage analysis tool to examine the most common locations/system components where leakage/faults were found. It builds on some preliminary results reported in Cowan et al, (2015). It also highlights some of the common practices used within the refrigeration industry for service maintenance or leakage repair.…”

“…One supermarket company in the UK, has demonstrated over a 14-year period that through employing best practices, refrigerant leakage rates were effectively reduced from 54% to 8% (Cowan et al, 2015). Similarly, there has been good progress in reducing refrigerant emissions, as a result of the contribution of regulatory, fiscal, and voluntary agreements and initiatives, as well as through technological developments (Cowan et al, 2014).…”

“…Leak tight design and installation requires practical knowledge and understanding of the locations and system components where leaks are most commonly found in refrigeration systems. This paper investigates and presents a detailed study of refrigerant leakage based on a total of 1,464 F-gas service records compiled from two major supermarket chains and builds on some preliminary results reported by Cowan et al (2015). In section 2, the current article provides some background information on regulations and the results of other leakage studies on commercial systems.…”

Observaciones sobre el estudio experimental de una instalación de refrigeración en cascada con CO2 como fluido de baja temperatura

“…A partir de estos valores se evalúa la diferencia de temperaturas en el intercambiador de la cascada con la Ec. (1).…”

“…El alto impacto medioambiental del sector de la refrigeración, debido a la fuga de refrigerantes y a las emisiones indirectas de CO 2 debido al consumo energético, hace que las instituciones y la comunidad científica se encaminen hacia soluciones más respetuosas con el medio ambiente. Dentro de los sectores de la refrigeración destaca la refrigeración comercial centralizada, donde se presentan elevados ratios de fuga anual, generalmente mayores de un 10% de la carga total del sistema [1] y elevados consumos energéticos [2]. Ambos aspectos motivaron a la Comisión Europea a aprobar la revisión de la reglamentación F-Gas [3], estando los esfuerzos encaminados a reducir las emisiones de gases de efecto invernadero a la atmósfera.…”