Research Papers: Energy Systems Analysis

Thermodynamic Analysis of Simultaneous Heat and Mass Transfer Systems

[+] Author and Article Information
Jesus Martinez-Patiño

Department of Electrical Engineering,
University of Guanajuato,
Salamanca-Valle de Santiago Road,
Palo Blanco Community,
Salamanca 36885, Guanajuato, México
e-mail: jesusmp23@ugto.mx

Luis Serra

Department of Mechanical Engineering,
University of Zaragoza,
Zaragoza 50015, Spain
e-mail: serra@unizar.es

Vittorio Verda

Department of Energy,
Polytechnic of Torino,
Turin 10129, Italy
e-mail: verda@polito.it

Martin Picón-Núñez

Department of Chemical Engineering,
University of Guanajuato,
Leon 37320, Guanajuato, México
e-mail: picon@ugto.mx

Carlos Rubio-Maya

Department of Mechanical Engineering,
Morelia 58116, Michoacán, México
e-mail: rmaya@umich.mx

Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received October 26, 2015; final manuscript received June 21, 2016; published online July 25, 2016. Assoc. Editor: Alojz Poredos.

J. Energy Resour. Technol 138(6), 062006 (Jul 25, 2016) (6 pages) Paper No: JERT-15-1405; doi: 10.1115/1.4034068 History: Received October 26, 2015; Revised June 21, 2016

The direct heat exchange network (direct flow mixing network) and the indirect heat exchange network (exchanger network) are two of the elements that constitute a water network where heat and mass are transferred. When designing these systems, it is important to consider different aspects such as thermodynamics and equipment costs. This paper analyzes different design options within the framework of heuristic methodologies on a case study taken from the open literature. Two design methodologies are compared on the basis of exergy losses. It also enunciates a series of considerations in heuristic design for the heat and mass exchange networks. A very helpful tool in relation with the considerations set out herein is the composite curve; special focus will be given during its construction. This paper shows how to incorporate the exergy component in design seeking to minimize the thermal irreversibility.

Copyright © 2016 by ASME
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Fig. 1

Simultaneous heat and mass transfer system

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Fig. 2

Mixing network in the cold water flow streams

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Fig. 3

Mixing network in the hot water flow streams

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Fig. 4

Relationship between composite curve and heat and mass transfer network

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Fig. 5

(a) Simultaneous heat and mass exchange network structure. Case 1: Martínez-Patiño et al. [5]. (b) and (c) exergy of the simultaneous heat and mass exchange network (case 1).

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Fig. 6

Simultaneous heat and mass exchange network structure. Case 2: Leewongtanawit and Kim [6]. (b) and (c) exergy of the simultaneous heat and mass exchange network (case 2).




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