Case Study 6 - Automobile Industry

Waste Heat Recovery from hot gases exhausted by Holcraft Furnace

System Description

Initial Situation

• Automobile Industry has various furnaces for heat treatment of various automobile components etc.
• These furnaces use petroleum derived fuels
• The hot exhaust gases from these furnaces exit to atmosphere at high temperature

Challenges

• Reutilize the waste heat to fulfill heat energy requirements of the plant
• Design suitable equipment to achieve optimum heat recovery and its utilization.

Solution Provided

• Two stage waste Heat Recovery System on Hot Gases exhausted by LPG fired Furnace
• Two stage air preheater
• First stage hot air is used in combustion burners of the furnace as combustion air
• Second stage hot air is used in ABB Paint booth for drying

Results

Process Schematic