EFFECTIVE MEAN TEMPERATURE DIFFERENCE IN SEGMENTALLY BAFFLED SHELL AND TUBE HEAT EXCHANGERS

1990 ◽  
Author(s):  
Wilfried Roetzel ◽  
Bernhard Spang
Keyword(s):  
Temperature Difference ◽  
Heat Exchangers ◽  
Mean Temperature ◽  
Shell And Tube

Mean Temperature Difference for Heat Exchanger Design—A General Approximate Explicit Equation

1975 ◽  
Vol 97 (1) ◽  
pp. 5-8 ◽  
Author(s):  
W. Roetzel ◽  
F. J. L. Nicole
Keyword(s):  
Temperature Difference ◽  
Cross Flow ◽  
Approximate Equation ◽  
Explicit Equation ◽  
Fast Calculation ◽  
Heat Exchanger Design ◽  
Mean Temperature ◽  
Shell And Tube ◽  
The Mean ◽  
Empirical Coefficients

An approximate equation together with empirical coefficients is presented for the fast calculation of the mean temperature difference of nine countercurrent cross-flow arrangements, as applied in air-cooled heat exchangers. The same equation can be used for other flow systems, as demonstrated for one shell-and-tube arrangement.

A General Expression for the Determination of the Log Mean Temperature Correction Factor for Shell and Tube Heat Exchangers

2003 ◽  
Vol 125 (3) ◽  
pp. 527-530 ◽  
Author(s):  
Ahmad Fakheri
Keyword(s):  
Heat Exchanger ◽  
Correction Factor ◽  
Heat Exchangers ◽  
Direct Determination ◽  
Temperature Correction ◽  
Tube Heat Exchanger ◽  
Mean Temperature ◽  
Shell And Tube ◽  
Graphical Presentation

This paper presents a single closed form algebraic equation for the determination of the Log Mean Temperature Difference correction factor F for shell and tube heat exchangers having N shell passes and 2M tube passes per shell. The equation and its graphical presentation generalize the traditional equations and charts used for the determination of F. The equation presented is also useful in design, analysis and optimization of multi shell and tube heat exchanger, particularly for direct determination of the number of shells.

Mean Temperature Difference in Multipass Crossflow

1983 ◽  
Vol 105 (3) ◽  
pp. 584-591 ◽  
Author(s):  
A. Pignotti ◽  
G. O. Cordero
Keyword(s):  
Temperature Difference ◽  
Heat Exchangers ◽  
Arbitrary Number ◽  
Mean Temperature ◽  
Air Mixing ◽  
The Mean ◽  
Number Of Passes ◽  
Analytical Expressions

A procedure is developed to obtain analytical expressions for the mean temperature difference in crossflow heat exchangers with arbitrary number of passes and rows per pass. The influence of air mixing, along with different flow arrangements for the tube fluid between passes, is analyzed, both in co- and counter-crossflow.

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