A comparative study on the environmental impact of supermarket refrigeration systems using low GWP refrigerants

Beshr, Mohamed; Aute, Vikrant; Sharma, Vishaldeep; Abdelaziz, Omar; Fricke, Brian; Radermacher, Reinhard

doi:10.1016/j.ijrefrig.2015.03.025

Cited by 69 publications

(29 citation statements)

References 3 publications

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“…However, more compact and safer ammonia and propane systems and components are developed nowadays, and the required charge is reduced significantly (Shecco, 2016) (Shecco, 2015). According to the F-gas regulations, HFCs and HFOs with GWP lower than 1500 are also allowed to be used in the high stage of cascade solutions (EU 517/2014(EU 517/ , 2014 and some other research presented these systems (Llopis et al, 2016b) (Gullo and Cortella, 2016) (Beshr et al, 2015). However, it is intended to present fully natural refrigerant-based cascade systems in this paper, as an alternative climate friendly and future proof solution.…”

Section: Cascade Ammonia-co2 and Propane-co2 Solutionsmentioning

confidence: 99%

State-of-the-art integrated CO2 refrigeration system for supermarkets: A comparative analysis

Karampour

Sawalha

2018

International Journal of Refrigeration

118

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This paper investigates the integrated and state-of-the art features of CO 2 trans-critical booster systems. The main objective is to identify the most promising solutions in terms of energy efficiency impacts.First, the performance of modified features and integrated functions have been compared with the standard CO2 system and alternative heating and air conditioning solutions. Subsequently, the performance of the defined state-of-the-art CO 2 system is compared to natural refrigerant-based cascade and HFC/HFO-based DX and indirect refrigeration solutions operating in cold and warm climates.The results indicate that two-stage heat recovery, flooded evaporation, parallel compression and integration of air conditioning are the most promising features of the state-of-the-art integrated CO2 system. This compact and environmentally friendly system is the most energy efficient solution in cold climates, and is also an efficient solution in warm climates, with comparable efficiency to cascade and HFC/HFO DX systems, but with no existing or potential limitations.

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Section: Cascade Ammonia-co2 and Propane-co2 Solutionsmentioning

confidence: 99%

State-of-the-art integrated CO2 refrigeration system for supermarkets: A comparative analysis

Karampour

Sawalha

2018

International Journal of Refrigeration

118

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“…This is accredited to the increase in demand for electrical appliances, in particular information and communication technologies and energy intensive processes such as air conditioning (Tassou et al, 2011). Among retailers, food retailers are responsible for both direct and more significantly indirect negative environmental impacts due to their proportionately large energy consumption in the services sector (Beshr et al, 2015). They have the highest specific energy consumption followed by textile retailers and DIY and furniture stores (Retail Forum for Sustainability, 2009).…”

Section: Introductionmentioning

confidence: 99%

Energy efficiency in the food retail sector: barriers, drivers and acceptable policies

Dixon-O’Mara

Ryan

2017

Energy Efficiency

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The objective of this research is to empirically examine the drivers and barriers to energy efficiency measures in an important energy-using sector, namely the food retail sector, and support more effective energy efficiency policies for this sector. Although food retailers consume a significant amount of energy due to the refrigeration, air conditioning and specialised lighting needs of stores, there has been little research in this sector on the barriers and drivers for implementing energy efficiency measures. A survey of small food retailers was carried out to understand the barriers and drivers to greater uptake of energy efficiency measures and to examine the acceptability of different energy efficiency policy options for food retailers. In addition, external stakeholders were consulted in order to validate and contextualise the results of the survey. We find there is a complementary relationship between energy efficiency barriers and drivers for food retailers that is remarkably coherent. We identify policies, such as subsidies and support for ESCOs, that both exploit the complementarities between barriers and drivers and are acceptable to food retailers also. This methodology should help identify and design more effective policies to deliver energy efficiency improvements in the food retail sector.

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“…Leakage in commercial refrigeration systems varies greatly from one system to another (Coulomb, 2008). Annual leak rate can be an average of 11% (Koronaki et al, 2012) and up to 30% in some cases (Beshr et al, 2015). Refrigerant leakage can also have a significant financial impact for the user depending on how quickly the leak is found and repaired (ETSU, 1997 andKoronaki et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Although, numerous investigations have been carried out in order to reduce CO 2 emissions, these efforts have not yet been sufficient to reduce climate change to sustainable levels (MotaBabiloni et al, 2015b). Design options tend to include using alternative refrigerants and improving the efficiency of the system (Beshr et al, 2015). However, designs for leak tight systems remain fundamental for reducing refrigerant leakage and associated costs.…”

Section: Introductionmentioning

confidence: 99%

An investigation of refrigerant leakage in commercial refrigeration

Francis

Maidment

Davies

2017

International Journal of Refrigeration

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Highlights Comprehensive analysis of a large number of F-gas leakage records was conducted.  A methodology of categorizing refrigerant leakage incidents is summarized.  Common locations and system components prone to leakage are identified.  Long term solutions to control refrigerant leakage are discussed. ABSTRACTGiven that refrigerant demand is set to rapidly increase, long term solutions for leakage prevention are required to effect change in the industry. This paper presents the results of a project which investigated refrigerant leakage within two of the UK's major supermarket chains. Leakage data from 1,464 maintenance records were analysed. The analysis categorized the type, location of each leak and volume of refrigerant replaced during repair. Over 82% of the recorded leaks were from R404A refrigeration systems, and mainly consisted of pipe or joint failures or a leaking seal/gland/core located in the compressor pack and the high pressure liquid line. It is recommended that the industry focuses on improving design, installation and maintenance of pipework and valves, at the components that most often develop faults to minimize refrigerant leakage.

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A comparative study on the environmental impact of supermarket refrigeration systems using low GWP refrigerants

Cited by 69 publications

References 3 publications

State-of-the-art integrated CO2 refrigeration system for supermarkets: A comparative analysis

State-of-the-art integrated CO2 refrigeration system for supermarkets: A comparative analysis

Energy efficiency in the food retail sector: barriers, drivers and acceptable policies

An investigation of refrigerant leakage in commercial refrigeration

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