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RESEARCH PAPER

Entropy Generation Extrema and Their Relationship With Heat Exchanger Effectiveness—Number of Transfer Unit Behavior for Complex Flow Arrangements

[+] Author and Article Information
Ramesh K. Shah

Rochester Institute of Technology, Department of Mechanical Engineering, Rochester, NY 14623-5604, USA

Teodor Skiepko

Bialystok Technical University, Department of Mechanical Engineering, Wiejska 45C, 15-351 Bialystok, Poland

J. Heat Transfer 126(6), 994-1002 (Jan 26, 2005) (9 pages) doi:10.1115/1.1846694 History: Received November 27, 2002; Revised August 28, 2003; Online January 26, 2005
Copyright © 2004 by ASME
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References

Figures

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Idealized temperature distributions in a 1-2 TEMA E exchangers (different by the shell fluid nozzle orientation) with shell fluid mixed for low NTU (with dashed lines)—case of no TC, and high NTU (with solid lines): (a) case of external TC, and (b) external and internal (▴) TC.
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S*/Smax*,T2,o/T1,o and P1 as function of NTU1 for a 1-2 TEMA G exchanger with overall counterflow for ϑ=2.0, ▴-temperature cross (TC)
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S*/Smax*,S̄,S̄,T2,o/T1,o and P1 as a function of NTU1 for a 1-2 TEMA J exchanger for ϑ=2.0. Note S̄=Sirr/(q/Tc,i) used by Hesselgreaves 11 marked with +, S̄=Sirr/UA used by Ogiso 14 marked with ×
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S*/Smax*,T2,o/T1,o and P1 as a function of NTU1 for a 1-2 TEMA G with overall parallelflow exchanger for ϑ=2.0
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S*/Smax*,T2,o/T1,o and P1 as a function of NTU1 for a 2 Pass—2 Pass plate heat exchanger with overall parallelflow and individual passes in counterflow for ϑ=2.0
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S*/Smax*,T2,o/T1,o and P1 as a function of NTU1 for a 3 Pass—3 Pass plate heat exchanger with overall parallelflow and individual passes in counterflow for ϑ=2.0

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