Related Questions

When heat is transferred by molecular collision, it is referred to as heat transfer by
The scales form in heat exchanges after a period of operation and provide additional resistance to heat transfer with some heat transfer coefficient . The reciprocal of this scale heat transfer coefficient is called .
Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the
The transfer of heat by molecular collision is smallest in
For shell and tube heat exchanger, with increasing heat transfer area, the purchased cost per unit heat transfer area
Air is to be heated by condensing steam. Two heat exchangers are available (i) a shell and tube heat exchanger and (ii) a finned tube heat exchanger. Tube side heat transfer area are equal in both the cases. The recommended arrangement is
According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity)
If a heat transfer surface is pock-marked with a number of cavities, then as compared to a smooth surface the heat transfer by __________ will not increase.
The concept of overall coefficient of heat transfer is used in heat transfer problems of
The concept of overall coefficient of heat transfer is used in case of heat transfer by