Appendix A
DESIGN OF INTERNAL COMBUSTION ENGINE COOLING SYSTEM
Objective:
Estimation of heat transfer coefficients and heat transfer rate for an internal combustion engine cylinder to select the suitable cooling systems.
Heat transfer model
Assumption:
- Steady-state condition
- One-dimensional conduction through a single slab
Problem:
The diameter and bore of a four stroke IC engine cylinder are 0.12 m. Thickness of the cylinder = 10 mm. Average gas temperature is 1100 K during the power stroke. Atmospheric air temperature is 305 K. Thermal conductivity of gas, K = 0.06 W/mk. Dynamic viscosity of gas, μ = 20 × 10−6 Ns/m2 Mass flow rate of gas ...
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