- -

Development and validation of a finite element model for water - CO2 coaxial gas-coolers

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

Development and validation of a finite element model for water - CO2 coaxial gas-coolers

Show simple item record

Files in this item

dc.contributor.author Sanchez, D. es_ES
dc.contributor.author Cabello, R. es_ES
dc.contributor.author Llopis, R. es_ES
dc.contributor.author Torrella Alcaraz, Enrique es_ES
dc.date.accessioned 2015-06-22T08:20:36Z
dc.date.available 2015-06-22T08:20:36Z
dc.date.issued 2012-05
dc.identifier.issn 0306-2619
dc.identifier.uri http://hdl.handle.net/10251/52082
dc.description.abstract The gas-cooler heat exchanger is a characteristic device of the refrigeration plants that use CO2 as the working fluid in transcritical conditions. The proper gas-cooler sizing, allows getting the maximum effectiveness in the heat exchange, thus permitting to reduce the temperature approach and improving the heat recovered in the coolant (secondary) fluid and the COP of this kind of systems. This work deals with the development of a steady-state coaxial gas-cooler model that uses water as coolant fluid. The model is based on the finite-volume methodology and is validated with experimental data. An uncertainty lower than ±10% was obtained in the calculation of the heat transfer rates and an uncertainty lower than ±3 °C in the outlet temperatures of both fluids. Several correlations for estimating the CO2 heat convection coefficient have been studied to select the one that best fits the model. Using the model, the influence of different parameters on the gas-cooler thermal effectiveness has been analyzed and presented in this work. Finally, a comparison between the traditional ε-NTU method and the developed model has been done. es_ES
dc.description.sponsorship The authors are indebted to the Spanish Ministry of Education and Science (CTM2008-06468-C02-02/TECNO) and to the Spanish Ministry of the Environment and Rural and Marine Affairs (200800050084716) for the economic support given to the present work. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation Spanish Ministry of Education and Science - CTM2008-06468-C02-02/TECNO es_ES
dc.relation Spanish Ministry of the Environment and Rural and Marine Affairs 200800050084716 es_ES
dc.relation.ispartof Applied Energy es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject CO 2 es_ES
dc.subject Finite volume model es_ES
dc.subject Gas-cooler es_ES
dc.subject Thermal effectiveness es_ES
dc.subject Transcritical cycles es_ES
dc.subject Best fit es_ES
dc.subject Coolant fluid es_ES
dc.subject Developed model es_ES
dc.subject Experimental data es_ES
dc.subject Finite element models es_ES
dc.subject Finite-volume es_ES
dc.subject Heat convection coefficient es_ES
dc.subject Heat exchange es_ES
dc.subject Heat transfer rate es_ES
dc.subject Outlet temperature es_ES
dc.subject Refrigeration plants es_ES
dc.subject Transcritical es_ES
dc.subject Transcritical cycle es_ES
dc.subject Working fluid es_ES
dc.subject Coolants es_ES
dc.subject Cooling systems es_ES
dc.subject Finite volume method es_ES
dc.subject Gases es_ES
dc.subject Heat exchangers es_ES
dc.subject Carbon dioxide es_ES
dc.subject Cooling es_ES
dc.subject Data set es_ES
dc.subject Finite element method es_ES
dc.subject Heat transfer es_ES
dc.subject Model validation es_ES
dc.subject Numerical model es_ES
dc.subject Thermal convection es_ES
dc.subject Uncertainty analysis es_ES
dc.subject ε-NTU es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Development and validation of a finite element model for water - CO2 coaxial gas-coolers es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.apenergy.2011.12.100
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Termodinámica Aplicada - Departament de Termodinàmica Aplicada es_ES
dc.description.bibliographicCitation Sanchez, D.; Cabello, R.; Llopis, R.; Torrella Alcaraz, E. (2012). Development and validation of a finite element model for water - CO2 coaxial gas-coolers. Applied Energy. 93:637-647. doi:10.1016/j.apenergy.2011.12.100 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.apenergy.2011.12.100 es_ES
dc.description.upvformatpinicio 637 es_ES
dc.description.upvformatpfin 647 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 93 es_ES
dc.relation.senia 212948


This item appears in the following Collection(s)

Show simple item record