期刊名称：International Journal of Sustainable Engineering
印刷版ISSN：1939-7038
出版年度：2021
卷号：14
期号：6
页码：1623-1646
DOI：10.1080/19397038.2021.1970274
语种：English
出版社：Taylor & Francis Group
摘要：ABSTRACTRefrigeration applications is responsible for approximately 17% of the total electricity and around 8% of greenhouse gas emissions. This study presents a comparative life cycle assessment between two refrigeration systems, the first operating with a traditional fluid and the second with a natural refrigerant. The analysis was performed in accordance with international standards ISO 14040/14044 and adopted the attributional life cycle assessment approach. The functional unit was: ‘the storage of meat products, at the temperature of 0°C for a lifetime of 10 years, in refrigerating cells of a medium city supermarket’. Three different scenarios were analysed to investigate the effect of the energy mix in relation to the use of the machines. Results highlight how the choice of the refrigerating fluid has a higher effect on the environmental performances of the machine with a reduction of approximately 10% in a whole life cycle. Scenario analysis shows how the use of such machines in different countries allows a significant reduction of environmental impacts mostly related to the use phase. Eco-design actions were listed and connected with environmental hot spots specifying the life cycle phases and the environmental indicators involved.
