Chemical Engineering - Heat Transfer
Exercise : Heat Transfer - Section 3
41.
Mechanical recompression evaporation is used in the production of
42.
A measure of the extent to which viscous heating is important relative to the heat flow resulting from the impressed temperature difference is represented by the __________ number.
43.
Out of 100 kcal/second of incident radiant energy on the surface of a thermally transparent body, 300 kcal/second is reflected back. If the transmissivity of the body is 0.25, the emissivity of the surface will be
44.
The purpose of providing a 'catchall' in the vapor line of an evaporator is to
45.
What is the thermal conductivity of a perfect heat insulator ?
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