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- Characterization of refrigeration systems in the Portuguese food processing industryPublication . Morais, Diogo Cerqueira; Silva, Pedro Dinho da; Gaspar, Pedro Dinis; Pires, Luís C.; Andrade, Luís P.; Nunes, JoséThis paper presents the results of audits performed in 60 companies of the food processing industry, specifically of meat, dairy, horticultural and bread products. The refrigeration volume, type of refrigeration system, refrigerant, building and insulation materials of infrastructure and refrigeration chambers, average air temperature and humidity, and the energy consumption are presented, compared and discussed per sector. The analysis allows to provide several measures and best practices aimed for the improvement of the thermal performance and energy efficiency of the food processing industry. The implementation of simple and very cost-effective transversal electricity savings measures such as awareness and/or training of operators, proper maintenance and monitoring tasks can benefit the sector. Tailored energy efficiency measures by sector, which may offer savings on several levels, are discussed. These best practices may increase productivity and competitiveness and reduce the environmental impact, and thus improve the global sustainability of the Portuguese food sector.