Three-dimensional CFD-solid mechanics analysis of the hydrogen internal combustion engine piston subjected to thermomechanical loads
الباحث الأول:
Maher A.R. Sadiq Al-Baghdadi
الباحثين الآخرين:
Nabeel Abdulhadi Ghyadh, Sahib Shihab Ahmed
المجلة:
Int. J. Renew. Energy Dev
تاريخ النشر:
25 إبريل، 2023
مختصر البحث:
To examine the stress distribution and specify the critical fracture zones in the
piston for hydrogen fuel engines, a three-dimensional CFD-solid-mechanics model of the internal combustion engine piston subjected to real
thermomechanical loads was…
To examine the stress distribution and specify the critical fracture zones in the
piston for hydrogen fuel engines, a three-dimensional CFD-solid-mechanics model of the internal combustion engine piston subjected to real
thermomechanical loads was analyzed numerically to investigate the distribution of the temperature on the piston body, the interrelated
thermomechanical deformations map, and the pattern of the stresses when fueling the engine with hydrogen fuel. With the aid of multiphysics
COMSOL software, the CFD-solid-mechanics equations were solved with high accuracy. Despite the increase in pressure on the piston and its
temperature when the engine is running on hydrogen fuel, the results show that the hydrogen fuel engine piston can withstand, safely, the
thermomechanical loads. In comparison to gasoline fuel, hydrogen fuel caused a deformation of 0.34 mm, an increase of 17%. This deformation is
within safe limits, with an average clearance of 0.867 mm between the cylinder liner and piston.
