Use of CFD Characterization of Discretized Heat Exchanger for Full-System Thermo-Hydraulic Analysis in Lumped-Parameters Simulation Environment (Contributo in atti di convegno)

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Label
  • Use of CFD Characterization of Discretized Heat Exchanger for Full-System Thermo-Hydraulic Analysis in Lumped-Parameters Simulation Environment (Contributo in atti di convegno) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Alternative label
  • Martelli Massimo, Gessi Silvia, Zarotti Gian Luca, Bonanno Antonino (2013)
    Use of CFD Characterization of Discretized Heat Exchanger for Full-System Thermo-Hydraulic Analysis in Lumped-Parameters Simulation Environment
    in The 12th International Conference on Fluid Control, Measurements, and Visualization - FLUCOME 2013, Nara, Giappone, 18-23 Novembre 2013
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Martelli Massimo, Gessi Silvia, Zarotti Gian Luca, Bonanno Antonino (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume
  • The 12th International Conference on Fluid Control, Measurements, and Visualization - FLUCOME 2013 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • IMAMOTER - Istituto per le macchine agricole e movimento terra (literal)
Titolo
  • Use of CFD Characterization of Discretized Heat Exchanger for Full-System Thermo-Hydraulic Analysis in Lumped-Parameters Simulation Environment (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#curatoriVolume
  • Tokyo Institute of Technology (literal)
Abstract
  • Functional analysis of hydraulic systems and thermal analysis of heat exchangers cooling power are usually carried out by means of separate numerical simulation techniques, viz. lumped-parameters \"1-D\" modelling for the former, CFD for the latter, and the interaction between the two is limited to system-wide parameters (e.g. global oil flow outputted by the 1-D analysis and used as input for CFD; global cooling power used the opposite way). In a previous research work a discretization technique was used to decompose heat exchangers in sub-domains, which were then characterized, in terms of pressure drop and WHTC, by means of CFD; these elements became the elementary blocks to be used by a custom-made algorithm to characterize exchangers of any size. The same decomposition is now reproduced in the AMESim simulation environment as a grid-connection of sub-domains, whose lumped parameters are those given by CFD, joining a detailed model of the hydraulic system. This way the heat exchanger thermal performances can be tested in simulation, both in steady-state and dynamically, against suitable system operation scenarios, providing at the same time information on the corresponding impact on system functionalities. (literal)
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