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Heat Transfer: Theory and Problems by K. Mayilsamy, R. Rudramoorthy

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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:

image

Assumptions:

  1. Steady-state condition
  2. 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 1100K during the power stroke. Atmospheric air temperature is 305 K. Thermal conductivity of gas, K = 0.06 W/m K. Dynamic viscosity of gas, μ = 20 × 106 Ns/m2. Mass flow rate of ...

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