Bissoy.com
Doctors Medicines MCQs Q&A

Heat is transferred by all three modes of transfer, viz. conduction, convection and radiation in

Heat is transferred by all three modes of transfer, viz. conduction, convection and radiation in Correct Answer Boiler

Heat is transferred by all three modes of transfer, viz. conduction, convection and radiation in Boiler

Related Questions

In a Heat Exchanger, heat cannot be transferred by all the three means, that is Conduction, Convection and Radiation simultaneously.
All modes of heat transfer i.e., conduction, convection & radiation occur in case of the
All modes of heat transfer i.e., conduction, convection & radiation occur in case of the
A polished metal pipe 5 cm outside diameter and 370 K temperature at the outer surface is exposed to ambient conditions at 295 K temperature. The emissivity of the surface is 0.2 and the convection coefficient of heat transfer is 11.35 W/m2 degree. Calculate the overall coefficient of heat transfer by the combined mode of convection and radiation
Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer can not take place
Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer can not take place
On a clear night there is radiation from earth’s surface to space. On such a night, the water particles on the plant leaves radiate to the sky whose temperature may be taken as 200 K. The water particles receive heat by convection from the surrounding air, the convection heat transfer coefficient has a value of 30 W/m2 K. If the water should not freeze, make calculations for the air temperature
The determination of a value of Nusselt number or the convective film coefficient forms a basis for the computation of heat transfer by convection. Towards that end, following approaches have been suggested (i) Non-dimensional analysis and experimental correlations (ii) Hydrodynamic concept of velocity boundary layer (iii) Reynolds similarity between the mechanism of fluid friction in the boundary layer and the transfer of heat by convection Identify the correct one
In a surface condenser, the water flowing through a series of tubes at the rate of 200 kg/hr is heated from 15 degree Celsius to 75 degree Celsius. The steam condenses on the outside surface of tubes at atmospheric pressure and the overall heat transfer coefficient is estimated at 860 k J/m2 hr degree. Find the number of transfer units of the heat exchanger. At the condensing pressure, stream has saturation temperature 0f 100 degree Celsius and the latent heat of vaporization is 2160 k J/kg. Further, the steam is initially just saturated and the condensate leaves the exchanger without sub-cooling i.e. only latent heat of condensing steam is transferred to water. Take specific heat of water as 4 k J/kg K
The heat is transferred by conduction, convection and radiation in