1. Identify sources of waste heat and their potential recovery methods

Before investing in costly work and equipment, analyze the flows that occur in your processes. To do this, start with a thermal audit to map areas of heat loss (smoke, wastewater, hot air). Use tools such as :

• thermal imaging cameras to visualize losses ;

• real-time temperature and mass flow sensors for energy balances;

• data analysis software.

If time and budget allow, you can also adopt a metering plan as described in the sheet Implementing an energy metering plan in an industrial company [FIC 1772] .

The recovered thermal energy necessarily passes through heat recovery units of various technologies and can be valorized (see Valorizing...