DTA

Digital Theses Archive

 

Tesi etd-11042019-123832

Type of thesis
Corsi integrativi di II livello
Author
QUAGLIOTTO, MATTEO
URN
etd-11042019-123832
Title
Flow patterns and droplet size in water-steam geothermal flows
Structure
Cl. Sc. Sperimentali - Ingegneria
Course
INGEGNERIA - Ingegneria Energetica (DM 270)
Committee
Presidente Prof. FRISOLI, ANTONIO
Membro Prof. BERGAMASCO, MASSIMO
Membro Prof. BUTTAZZO, GIORGIO CARLO
Membro Prof.ssa LASCHI, CECILIA
Membro Prof.ssa BOGONI, ANTONELLA
Membro Dott. TRIPICCHIO, PAOLO
Membro Prof. VALCARENGHI, LUCA
Membro Dott. FILIPPESCHI, ALESSANDRO
Keywords
  • flow patterns
  • geothermal
  • pipeline
  • power plant
Exam session start date
;
Availability
parziale
Abstract
The purpose of the present work is to provide an overview on the fluid-dynamics and patterns that occurs in geothermal two-phase flows, using as case study the pipeline before entering the separator of the geothermal plant of Cerro Pabellón, Chile.<br><br>First, a literature review has been made. That has illustrated the main variables that determine the types of flow regimes that occur in horizontal flows, e.g. in the pipes taken as reference in this study. So, the flow regime of Cerro Pabellón&#39;s pipeline has been determined taking as input variables the average liquid and steam velocity.<br><br>Secondly, the pressure drop has been estimated with the use of a correction for multi-phase geothermal flows. <br><br>Finally, an estimation of the droplet size of the liquid phase is presented, using literature correlations as well as inputs the flow&#39;s thermodynamic variables.<br>
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