ETD

Archivio digitale delle tesi discusse presso l'Università di Pisa

Tesi etd-01182017-201955


Tipo di tesi
Tesi di laurea magistrale
Autore
SALETTI, COSTANZA
URN
etd-01182017-201955
Titolo
Identification, Modeling and Analysis of Energy Losses in a SOFC/GT Hybrid Power Plant
Dipartimento
INGEGNERIA DELL'ENERGIA, DEI SISTEMI, DEL TERRITORIO E DELLE COSTRUZIONI
Corso di studi
INGEGNERIA ENERGETICA
Relatori
relatore Prof. Desideri, Umberto
relatore Steilen, Mike
Parole chiave
  • heat transfer
  • heat loss
  • energy loss
  • hybrid power plant
  • gas turbine
  • fuel cell
  • modello
  • trasmissione del calore
  • perdite energetiche
  • ibrido
  • turbina a gas
  • SOFC
  • celle a combustibile
  • modeling
Data inizio appello
02/03/2017
Consultabilità
Completa
Riassunto
At DLR (German Aerospace Center), a pilot hybrid power plant made by a Solid Oxide Fuel Cell and a Gas Turbine is being built. In the present thesis, the energy losses from the hybrid power plant have been identified and modeled, in order to integrate a global system model and enhance its accuracy while keeping a high computational speed.
Firstly, the state of the scientific and technological knowledge and the existing model paradigms on the topic have been reviewed, together with the theoretical fundamentals on heat transfer and computational techniques for its modeling.
Then, various multi-dimensional models for the evaluation of heat losses from the hybrid power plant have been built for both stationary and transient operation. The real system parameters have been accounted for by building a database for material properties and components geometries. The results obtained with the different models have been compared in order to choose the paradigm that gives the lowest computational time while maintaining a feasible accuracy.
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