1. Eurostat. Consumption of energy. Available online: https://ec.europa.eu/eurostat/statistics-explained/index.php?title=Archive:Consumption_of_energy. Accessed on 30 March 2020
2. Agathokleous R, Bianchi G, Panayiotou G, Arestia L, Argyrou M, Georgiou GS, Tassou SA, Jouhara H, Kalogirou SA, Florides GA, Christodoulides P (2019) Waste heat recovery in the EU industry and proposed new technologies. Energy Procedia 161:489–496
3. Rajendran K, Ling-Chin J, Roskilly AP (2015) Thermal energy efficiency in industrial processes. Handbook of clean energy systems (John Wiley & Sons, New York, USA), 4:1–30
4. Reddy C, Maidu S, Rangaish GP (2013) Waste heat recovery methods and technologies. Chem Eng (New York, McGraw-Hill, Chemical Week Publishing) 120(1):28–38
5. Fernandes MC, Matos HA, Nunes CP, Cabrita JC, Cabrita I, Martins P, Cardoso C, Partidário P, Gomes P (2016) Medidas Transversais de Eficiência Energética para a Indústria, 1st edn. Direção-Geral de Energia e Geologia, Lisbon, Portugal. ISBN 978-972-8268-41-1