Research Article Open Access

Analysis Heat Flow Between Seat and Valve of ICE

M.H. Shojaefard, A.R. Noorpoor, M. Ghaffarpour and F. Mohammadi


An interesting application of system identification method is to investigate the heat transfer from the exhaust valve, especially the valve burning at high temperatures. This study consists of experimental and analytical works. For the experiment, two co-axial rods were used to transfer heat constantly at their contact surfaces. Using the measured temperatures at different locations of the rods and the analytical method, the temperatures distribution of the rods were calculated; consequently the heat transfer coefficient at contact surface was calculated. By applying the system identification method and having the temperatures at both sides of the contact surface, the temperature transfer function was calculated. The transfer function is changed as the operating conditions are varied. Using the calculated transfer function and the system identification method, a computational model was created. By knowing the temperature of one rod, the temperature of the other rod was estimated with high accuracy.

American Journal of Applied Sciences
Volume 4 No. 9, 2007, 700-708


Submitted On: 25 May 2006 Published On: 30 September 2007

How to Cite: Shojaefard, M., Noorpoor, A., Ghaffarpour, M. & Mohammadi, F. (2007). Analysis Heat Flow Between Seat and Valve of ICE. American Journal of Applied Sciences, 4(9), 700-708.

  • 2 Citations



  • System identification
  • exhaust valve
  • heat transfer coefficient