Industrial waste heat recovery is a key factor for energy savings. In most industrial processes that need heat, the thermal energy produced is not used in full and part of it is rejected as "waste heat". The waste heat recovery can be used internally to cover the heating needs of the process or of the industrial building. It can also be used to meet the heating requirements of other companies or buildings in the surroundings, using a district heating network. The recovered heat can also be converted into electricity, for internal or external use. To better take into consideration the available industrial heat recovery deposit, access to information is required about the potential quantities, location and temperature levels of such heat sources. This publication from the French Energy Agency ADEME (Agence de l’Environnement et de la Maîtrise de l’Énergie) provides figures presenting significant heat quantities which can be used by industries and their neighbourhood e.g. for buildings.
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