Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | Innovative Heat Exchangers |
| Herausgeber/-innen | HJ Bart, S. Scholl |
| Seiten | 167-187 |
| Seitenumfang | 21 |
| ISBN (elektronisch) | 9783319716411 |
| Publikationsstatus | Veröffentlicht - 2018 |
Abstract
The usage of multi-stream heat exchangers can be favorable in applications where the heat transfer behavior of one of the fluids changes or when there is a discontinuous temperature profile during the passage through the apparatus. These situations occur, for example, during phase change (e.g., evaporation and condensation) or in the transcritical region. In multi-stream arrangements, the thermal load is split into two or more utility fluids. In plate-and-frame heat exchangers, this can be easily adjusted by insertion of stream splitting intermediate plates. Using a multi-stream device bears the advantage of a better heat integration and optimal adjustment to the overall thermal situation, for example, a temperature limitation of the cooling fluid. Another important point is the great potential in terms of minimization of entropy production and thus minimization of exergy loss. As the entropy production rate grows with the square of the driving temperature difference between the hot and cold fluids, a small and well-adjusted temperature difference is favorable. This is especially important as heat exchangers are among the most common components within an industrial plant. To optimally adjust the operation conditions of the multi-stream device to the given requirements, the mass flow of the utility fluids can be controlled as a function of the relevant parameter (e.g., the saturation temperature at the inlet or outlet of the section for phase change processes). For all applications, the quality of the efficiency increases with an accurate anticipation of the heat transfer and pressure drop behavior. Therefore, correlations for the single- and two-phase heat transfer and pressure drop in plate-and-frame heat exchangers useful for multi-stream heat exchanger design are presented.
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Innovative Heat Exchangers. Hrsg. / HJ Bart; S. Scholl. 2018. S. 167-187.
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Beitrag in Buch/Sammelwerk › Forschung › Peer-Review
}
TY - CHAP
T1 - Multi-stream plate-and-frame heat exchangers for condensation and evaporation
AU - Müller, Arne
AU - Polzin, Anja-Elsa
AU - Kabelac, Stephan
N1 - Publisher Copyright: © Springer International Publishing AG 2018. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2018
Y1 - 2018
N2 - The usage of multi-stream heat exchangers can be favorable in applications where the heat transfer behavior of one of the fluids changes or when there is a discontinuous temperature profile during the passage through the apparatus. These situations occur, for example, during phase change (e.g., evaporation and condensation) or in the transcritical region. In multi-stream arrangements, the thermal load is split into two or more utility fluids. In plate-and-frame heat exchangers, this can be easily adjusted by insertion of stream splitting intermediate plates. Using a multi-stream device bears the advantage of a better heat integration and optimal adjustment to the overall thermal situation, for example, a temperature limitation of the cooling fluid. Another important point is the great potential in terms of minimization of entropy production and thus minimization of exergy loss. As the entropy production rate grows with the square of the driving temperature difference between the hot and cold fluids, a small and well-adjusted temperature difference is favorable. This is especially important as heat exchangers are among the most common components within an industrial plant. To optimally adjust the operation conditions of the multi-stream device to the given requirements, the mass flow of the utility fluids can be controlled as a function of the relevant parameter (e.g., the saturation temperature at the inlet or outlet of the section for phase change processes). For all applications, the quality of the efficiency increases with an accurate anticipation of the heat transfer and pressure drop behavior. Therefore, correlations for the single- and two-phase heat transfer and pressure drop in plate-and-frame heat exchangers useful for multi-stream heat exchanger design are presented.
AB - The usage of multi-stream heat exchangers can be favorable in applications where the heat transfer behavior of one of the fluids changes or when there is a discontinuous temperature profile during the passage through the apparatus. These situations occur, for example, during phase change (e.g., evaporation and condensation) or in the transcritical region. In multi-stream arrangements, the thermal load is split into two or more utility fluids. In plate-and-frame heat exchangers, this can be easily adjusted by insertion of stream splitting intermediate plates. Using a multi-stream device bears the advantage of a better heat integration and optimal adjustment to the overall thermal situation, for example, a temperature limitation of the cooling fluid. Another important point is the great potential in terms of minimization of entropy production and thus minimization of exergy loss. As the entropy production rate grows with the square of the driving temperature difference between the hot and cold fluids, a small and well-adjusted temperature difference is favorable. This is especially important as heat exchangers are among the most common components within an industrial plant. To optimally adjust the operation conditions of the multi-stream device to the given requirements, the mass flow of the utility fluids can be controlled as a function of the relevant parameter (e.g., the saturation temperature at the inlet or outlet of the section for phase change processes). For all applications, the quality of the efficiency increases with an accurate anticipation of the heat transfer and pressure drop behavior. Therefore, correlations for the single- and two-phase heat transfer and pressure drop in plate-and-frame heat exchangers useful for multi-stream heat exchanger design are presented.
UR - http://www.scopus.com/inward/record.url?scp=85043507070&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-71641-1_5
DO - 10.1007/978-3-319-71641-1_5
M3 - Contribution to book/anthology
AN - SCOPUS:85043507070
SN - 9783319716398
SP - 167
EP - 187
BT - Innovative Heat Exchangers
A2 - Bart, HJ
A2 - Scholl, S.
ER -