Thermal insulation (FEV)

Partner FEV has developed a deep understanding of what thermal insulation’s contribution can be towards proving the engine efficiency potential by thermal insulation to contribute to reach 50% brake thermal efficiency.

Thermal swing effect:

Thickness of the insulation plays a critical role in balancing heat losses along the front and back side of the coating


Thermal insulation – Single cylinder results:

  • Introducing thermal insulation, a reduction in wall heat transfer can be observed
  • Exhaust losses are increased since not all savings in wall heat losses can be transferred into combustion efficiency
  • Insulation of the exhaust ports leads to a further increase of the exhaust losses due to a lower heat rejection over the port into the engine coolant