Das AURA Logo in klein und weiß
  1. Home
  2. /
  3. Flue gas heated thermal...

Thermal oil system

Efficient utilization of industrial waste heat

What is a flue gas heated thermal oil system?

A flue gas heated thermal oil system uses the thermal energy of hot gases to generate high temperature process heat. Instead of releasing waste heat unused into the atmosphere via stack, it is transferred to a circulating thermal oil through a heat exchanger. The result: Cost-effective high-temperature heat without additional fuel consumption. AURA´s flue gas heated thermal oil systems are designed for industrial applications with continuous waste heat sources – robust, efficient and individually engineered. 

System Properties:

The heating system can utilize flue gases with temperatures of up to 1200°C to recover otherwise unused waste heat. This enables more sustainable processes and significantly reduces primary energy consumption and CO2 emissions. 

Exemplary system: 1570kW, flue gas temperature 1100 °C, thermal oil volume flow 63 m3/h  and flow temperature 305°C

Operating principle

In many industrial processes, flue gases with temperatures ranging from several hundred to over 1000°C are generated, for example in gas turbines, engines, industrial furnaces or combustion systems. 

The flue gas heated thermal oil system utilizes this energy: 

  • Hot flue gas flows through a specially designed heat exchanger
  • Thermal oil circulates on the secondary side
  • Heat is transferred in a controlled manner to the thermal oil
  • The heated oil supplies connected consumers with process heat

Temperature control is automated to ensure a stable heat supply.

Advantages

  • Utilization of available waste heat
  • Reduction of fuel costs
  • Robust design for continuous operation
  • Reduction of CO2 emissions
  • Can be integrated into existing systems

Advantages

  • Crude oil processing
  • Chemical reactors
  • Plastics production
  • Industrial furnaces
  • Energy systems
  • Offshore platforms

When high-temperature waste heat is continuously available with sufficient volume flow.

Depending on the design, several hundred up to over 1,000°C.

Yes, integration into existing thermal oil systems is possible.

Since no additional combustion is required, direct emissions are reduced.