Effects due to the temperature measurement section on the performance estimation of a centrifugal compressor stage (Articolo in rivista)

Type
Label
  • Effects due to the temperature measurement section on the performance estimation of a centrifugal compressor stage (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1115/1.4004722 (literal)
Alternative label
  • Bianchini, Alessandro; Ferrara, Giovanni; Ferrari, Lorenzo; Ballarini, Valeria; Bianchi, Lorenzo; Tapinassi, Libero; Toni, Lorenzo (2012)
    Effects due to the temperature measurement section on the performance estimation of a centrifugal compressor stage
    in Journal of engineering for gas turbines and power; ASME-American Society Of Mechanical Engineers, New York (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bianchini, Alessandro; Ferrara, Giovanni; Ferrari, Lorenzo; Ballarini, Valeria; Bianchi, Lorenzo; Tapinassi, Libero; Toni, Lorenzo (literal)
Pagina inizio
  • 032402-1 (literal)
Pagina fine
  • 032402-8 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 134 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 8 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"Sergio Stecco\" Department of Energy Engineering, University of Florence, Via S. Marta 3, 50139 Firenze, Italy; Institute of Chemistry of Organometallic Compounds, National Council of Research of Italy (CNR-ICCOM), Via Madonna del Piano 10, 50019 Sesto Fiorentino (FI), Italy; GE Oil & Gas, Via Felice Matteucci, 2, 50127 Florence, Italy (literal)
Titolo
  • Effects due to the temperature measurement section on the performance estimation of a centrifugal compressor stage (literal)
Abstract
  • A wide-ranging analysis was performed by GE Oil & Gas and the University of Florence to investigate the effects on the estimation of centrifugal compressor performance induced by a different choice of the total temperature measurement section. With this goal in mind, the study focused on the analysis of a commonly found discrepancy between the measurements at the impeller outlet section and at the stage exit section. Based on the experimental data collected on a centrifugal impeller, three main physical phenomena were analyzed and discussed in further detail. First, the effect of the heat exchange was examined, and its influence on the total temperature variation throughout the machine was extrapolated. Next, the influence of the heat-exchange phenomena affecting the temperature sensors was evaluated by means of numerical models and physical assumptions. Finally, the effects on the temperature measurement of the flow structure at the impeller outlet were investigated. In particular, a corrective model to account for the thermal inertia of the thermocouples normally applied in this section was applied to the experimental data. The corrected temperatures at the investigated measurement sections were then compared, and their influence on the correct stage performance estimation is discussed in this study. (literal)
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