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A heat exchanger is a component that allows the transfer of heat from one fluid (liquid or gas) to another fluid. Reasons for heat transfer include the following:
This question involves both heat for a phase change (melting of ice) and the transfer of heat by conduction. To find the amount of ice melted, we must find the net heat transferred. This value can be obtained by calculating the rate of heat transfer by conduction and multiplying by time.
Heat transferred from the burner of a stove through the bottom of a pan to food in the pan is transferred by conduction. Convection is the heat transfer by the macroscopic movement of a fluid. This type of transfer takes place in a forced-air furnace and in weather systems, for example.
Algebraic expressions for the correction factor Fhave been developed for vari- ous shell-and-tube and cross-flow heat exchanger configurations [1–3], and the results may be represented graphically. Selected results are shown in Figures 11S.1 through 11S.4 for common heat exchanger configurations.
Some examples of common design parameters to be taken into account are: • Flow rate of both fluid streams • Inlet and outlet temperatures of both streams • Operating pressure of both streams • Allowable pressure drop of both streams • Fouling resistance for both streams • Physical properties of both streams • Type and ...
The general function of a heat exchanger is to transfer heat from one fluid to another. The basic component of a heat exchanger can be viewed as a tube with one fluid running through it and another fluid flowing by on the outside.
Heat is transferred by three different methods: conduction, convection, and radiation. Heat conduction is the transfer of heat between two objects in direct contact with each other.
