Pisano, A.; Martinez Ballester, S.; Corberán Salvador, JM.; Hidalgo Mopeán, F.; Illán Gómez, F.; García Cascales, JR. (2015). A discussion about the methodology for validating a model of a finned-tube condenser considering different correlations for the heat transfer coefficients and pressure drop. Science and Technology for the Built Environment. 21(5):585-594. doi:10.1080/23744731.2015.1040341
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/88516
Title:
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A discussion about the methodology for validating a model of a finned-tube condenser considering different correlations for the heat transfer coefficients and pressure drop
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Author:
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Pisano, Alessandro
Martínez Ballester, Santiago
Corberán Salvador, José Miguel
Hidalgo Mopeán, Fernando
Illán Gómez, Fernando
García Cascales, José Ramón
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UPV Unit:
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Universitat Politècnica de València. Departamento de Termodinámica Aplicada - Departament de Termodinàmica Aplicada
Universitat Politècnica de València. Instituto de Ingeniería Energética - Institut d'Enginyeria Energètica
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Issued date:
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Abstract:
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[EN] The selection of suitable correlations for calculating heat transfer coefficients and pressure drop plays a fundamental role in the use of semi-empirical models for the simulation of the performance of a heat exchanger. ...[+]
[EN] The selection of suitable correlations for calculating heat transfer coefficients and pressure drop plays a fundamental role in the use of semi-empirical models for the simulation of the performance of a heat exchanger. Therefore, a discussion about the best way for validating a condenser model and choosing the best set of correlations for both the heat transfer coefficients and pressure drop is presented. The studies were performed for both the air and refrigerant side in a round tube and plate fin condenser. A test campaign was specially designed to cover a wide range of key parameters, such as air velocity, condensation temperature, refrigerant mass flow rate, and condenser subcooling. The options for defining the boundary conditions in the model and the accuracy metrics are discussed in detail, allowing the identification of the most suitable correlations. By using this set of correlations, the prediction error is within an error band of +/- 0.4 degrees C for the condensation temperature and +/- 0.6% in terms of capacity.
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Subjects:
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HORIZONTAL SMOOTH TUBE
,
FRICTION CHARACTERISTICS
,
MICROCHANNEL CONDENSERS
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PERFORMANCE PREDICTION
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HFC REFRIGERANTS
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FLOW REGIMES
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PART II
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EXCHANGERS
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SIMULATION
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EQUATIONS
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Copyrigths:
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Cerrado |
Source:
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Science and Technology for the Built Environment. (issn:
2374-4731
) (eissn:
2374-474X
)
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DOI:
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10.1080/23744731.2015.1040341
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Publisher:
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Taylor & Francis
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Publisher version:
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http://doi.org/10.1080/23744731.2015.1040341
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Project ID:
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Ministry for Economy and Finance of Spain DPI2011-26771-C02-01
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Thanks:
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The work of Alessandro Pisano on this project was partially supported by the Ministry for Economy and Finance of Spain, under the Formacion de Personal Investigador (FPI) program. Financial support from the Ministry for ...[+]
The work of Alessandro Pisano on this project was partially supported by the Ministry for Economy and Finance of Spain, under the Formacion de Personal Investigador (FPI) program. Financial support from the Ministry for Economy and Finance of Spain (project number DPI2011-26771-C02-01) is also gratefully acknowledged.
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Type:
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Artículo
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