ANALYSIS OF ENERGY EFFICIENCY OF EXTERNAL RECUPERATION OF HEAT FROM FLUE GASSES FROM INDUSTRIAL PROCESSES

The paper presents a case study regarding the energy efficiency of recuperation of heat from flue gasses from a thermal treatment furnace. The authors have presented the main solutions for external recuperation of secondary energy resources. There have also been presented energy, environmental and economic aspects of recuperation of secondary energy resources. The case study presents the recuperation of heat from flue gasses for warm water preparation and for heating. The obtained results lead to fuel savings and the payback period is lower than 2 years, showing a high economic efficiency of the project.