Characterization and modeling of a scroll expander with air and ammonia as working fluid
Impacto
Scholar |
Otros documentos de la autoría: Mendoza, Luis Carlos; Navarro-Esbrí, Joaquín; Bruno, Joan Carles; Lemort, Vincent; Coronas, Alberto
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7035
comunitat-uji-handle3:10234/8617
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http://dx.doi.org/10.1016/j.applthermaleng.2014.05.069 |
Metadatos
Título
Characterization and modeling of a scroll expander with air and ammonia as working fluidAutoría
Fecha de publicación
2014-09Editor
ElsevierISSN
1359-4311Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.sciencedirect.com/science/article/pii/S1359431114004451#Palabras clave / Materias
Resumen
This paper presents the experimental characterization and modeling of a scroll expander. The expander used here is a scroll compressor modified to work as an expander. It is characterized in two experimental setups ... [+]
This paper presents the experimental characterization and modeling of a scroll expander. The expander used here is a scroll compressor modified to work as an expander. It is characterized in two experimental setups using air and ammonia as working fluids. The paper studies how the main operating variables (supply pressure and temperature, pressure ratio, rotational speed and lubrication) influence the performance of the scroll expander. A semi-empirical model is proposed to determine the scroll expander performance. This model uses some semi-empirical parameters (such as built-in volume ratio, leakage area and mechanical losses), obtained through experimentation, to calculate the mechanical power, supply mass flow rate and exhaust temperature. Using this semi-empirical model, the deviations in the calculated mechanical power, exhaust temperature and supply mass flow rate are ±9%, ±4 K and ±5% Hz. [-]
Publicado en
Applied Thermal Engineering Vol. 70, no. 1, 2014Derechos de acceso
Copyright © 2015 Elsevier B.V.
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