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Tesi etd-01292016-113518


Thesis type
Tesi di laurea magistrale
Author
FILIPPI, NICOLA
URN
etd-01292016-113518
Title
1D stratified two-phase flow modelling of a parabolic trough collector for direct vapour generation
Struttura
INGEGNERIA DELL'ENERGIA, DEI SISTEMI, DEL TERRITORIO E DELLE COSTRUZIONI
Corso di studi
INGEGNERIA ENERGETICA
Commissione
relatore Dott. Antonelli, Marco
correlatore Prof. Lecuona Neumann, Antonio
Parole chiave
  • solar absorption cooling systems
  • discretization
  • working pair
Data inizio appello
03/03/2016;
Consultabilità
completa
Riassunto analitico
The purpose of this work is to investigate the potential of using PTC (parabolic trough collector) technology for the direct evaporation of ammonia from a solution of ammonia-lithium nitrate in absorption cooling systems. This system solution, currently under study by the research group ITEA of the University Carlos III of Madrid, allows eliminating the use of heat transfer fluids (thermal oil, pressurized water, etc.), thus entailing benefits as regards the overall efficiency, the environmental protection and the reduction of the installation costs. After a general overview of solar absorption cooling applications, a one-dimensional, stratified, two-phase flow model in steady state conditions has been developed. The resulting set of equations was subsequently discretized and then solved using the calculation software Mathcad 14.0. Finally, the results, obtained for different varying input values, were reported and commented.
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