Mechanical Engineering :: Heat and Mass Transfer
- The process of heat transfer from one particle of the body to another is called conduction, when the particles of the body
- The thermal diffusivities for solids are generally
- Heat transfer by radiation mainly depends upon
- The transfer of heat by molecular collision is known as
- According to Kirchoff's law, the ratio of emissive power to absorptivity for all bodies is equal to the emissive power of a
- 40% of incident radiant energy on the surface of a thermally transparent body is reflected back. If the transmissivity of the body be 0.15, then the emissivity of surface is
- The heat transfer takes place according to
- In case of liquids and gases, the heat transfer takes place according to
- Depending on the radiating properties, a body will be opaque when
- Log mean temperature difference in case of counter flow compared to parallel flow will be
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