Related Questions

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
In convection heat transfer from hot flue gases to water tube, even though flow may be turbulent, a laminar flow region (boundary layer of film) exists close to the tube. The heat transfer through this film takes place by
When the temperature of the surrounding is higher than the temperature of the body, then the heat loss by convection from the body to the surrounding will be
In heating the ferromagnetic material by induction heating, heat is produced due to
In the indirect resistance heating method, maximum heat-transfer takes place by
For shell and tube heat exchanger, with increasing heat transfer area, the purchased cost per unit heat transfer area
In case of __________ boiling, the bubbles formed on a submerged hot surface get absorbed in the mass of the liquid.
Heat transfer in liquid and gases takes place by
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