Lab 2 - Heat Transfer in Shell and Tube Heat Exchangers Santhosh Varadarajan David Belair Sara Balander Introduction The purpose of this lab is to

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Heat Transfer in Shell and Tube Heat Exchangers Santhosh Varadarajan David Belair Sara Balander Introduction
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The purpose of this lab is to show the existence of convective heat transfer in heat exchangers, using both the co-current and counter current cases. We will hold the shell-side flow rate constant, and vary the tube side flow rate. By doing this we can use the Wilson Plot Method of Analysis to calculate the individual heat transfer coefficients. After finding these we can compare them to the predicted values using empirical correlations. Theory Since the heat exchanger we are dealing with is a concentric-tube and is assumed to be well insulated from its surroundings, we can find the rate of heat transfer from the fluid inside to the fluid in the shell space. We can do this by using the simple equation: = - = - Q mtCpiTto Tti msCpsTsi Tso We can express this rate of heat transfer in terms of the total thermal resistance and the log-mean temperature difference between the two fluids: = = / Q UA∆Tln ∆Tln RTtotal In this equation the log-mean temperature difference is shown by ∆Tln and the total thermal resistance is shown by RTtotal . The total thermal resistance can be shown by the sum of the
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This note was uploaded on 11/02/2009 for the course CHEM 378 taught by Professor Corti during the Spring '09 term at Purdue University-West Lafayette.

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Lab 2 - Heat Transfer in Shell and Tube Heat Exchangers Santhosh Varadarajan David Belair Sara Balander Introduction The purpose of this lab is to

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