A one-shell and two-tube type heat exchanger has an overall heat transfer coefficient of 300 Btu/h·ft2·°F. The shell side fluid has a heat capacity rate of 20,000 Btu/h·°F, while the tube side fluid has a heat capacity rate of 40,000 Btu/h·°F. The inlet temperatures on the shell side and tube side are 200°F and 90°F, respectively. If the total heat transfer area is 100 ft2, determine (a) the heat transfer effectiveness and (b) the actual heat transfer rate in the heat exchanger.
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
A one-shell and two-tube type heat exchanger has
an overall
shell side fluid has a heat capacity rate of 20,000 Btu/h·°F,
while the tube side fluid has a heat capacity rate of 40,000
Btu/h·°F. The inlet temperatures on the shell side and
tube side are 200°F and 90°F, respectively. If the total heat
transfer area is 100 ft2, determine (a) the heat transfer effectiveness
and (b) the actual heat transfer rate in the heat
exchanger.
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