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Heat Pipe Science and Technology, An International Journal

ISSN Print: 2151-7975
ISSN Online: 2151-7991

Archives: Volume 1, 2010 to Volume 8, 2017

Heat Pipe Science and Technology, An International Journal

DOI: 10.1615/HeatPipeScieTech.v5.i1-4.290
pages 271-278

TRANSIENT MODELING OF CPL FOR TERRESTRIAL APPLICATION, PART B: RESERVOIR MODELING IMPROVEMENT

N. Blet
Institut Pprime, CNRS-ENSMA-Université de Poitiers, UPR 3346, 1 avenue Clément Ader 86961 Futuroscope Chasseneuil Cedex, France
Vincent Ayel
Département Fluide, Thermique et Combustion, Institut Prime, CNRS-ENSMA-Université de Poitiers, UPR 33461, 86961 Futuroscope Chasseneuil Cedex, France
Yves Bertin
CNRS - Institut Prime-Université de Poitiers - ENSMA UPR 3346, Département Fluides, Thermique, Combustion, 1, avenue Clément Ader BP 40109, 86961 FUTUROSCOPE CHASSENEUIL Cedex France
Cyril Romestant
CNRS - Institut Prime-Université de Poitiers - ENSMA UPR 3346, Département Fluides, Thermique, Combustion, 1, avenue Clément Ader BP 40109, 86961 FUTUROSCOPE CHASSENEUIL Cedex France; Universita di Bergamo, Dipartimento di Ingegneria Industriale, Viale Marconi 5, 24044 Dalmine, Bergamo, Italy
Vincent Platel
LaTEP, Université de Pau et des Pays de l'Adour, Quartier Bastillac 65000 Tarbes, France

ABSTRACT

For a Capillary Pumped Loop (CPL), the thermodynamic reference is located in the reservoir. The model of the specific reservoir design, cooled by the subcooled liquid flowing to the evaporator, of the CPL for terrestrial application (CPLTA) is improved in this paper. Indeed, the previous model [Delalandre et al., 2011] supposed a constant temperature, and so a constant pressure too, at the top of the two-phase reservoir. The present improved model allows taking into account the variations of this saturation temperature. Furthermore, it allows considering the real input variable at this reservoir: the heat power of control. The influence of this improvement highlights a better modeling of the transient thermohydraulic phases, especially for the pressures. A numerical study is also given to identify the main phenomena governing the transient dynamics occurring inside the reservoir. The first results show that compressibility and phase change are negligible compared with input of subcooling liquid, with ethanol as the working fluid.


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