JesúsCastroGonzàlezDOCTORALTHESISUPC−April2005UPC
CTTC
Simulation of heat and
mass transfer
phenomena in the
critical elements of
H2O-LiBr absorption
cooling machines.
Experimental validation
and application to
design.
Centre Tecnològic de Transferència de Calor
Departament de Màquines i Motors Tèrmics
Universitat Politècnica de Catalunya
Jesús Castro Gonzàlez
2
Doctoral Thesis
Simulation of heat and mass transfer
phenomena in the critical elements of
H2O-LiBr absorption cooling machines.
Experimental validation and
application to design.
Jesús Castro Gonzàlez
TESI DOCTORAL
presentada al
Departament de Màquines i Motors Tèrmics
E.T.S.E.I.T.
Universitat Politècnica de Catalunya
per a l’obtenció del grau de
Doctor Enginyer Industrial
Terrassa, April 2005
Simulation of heat and mass transfer
phenomena in the critical elements of
H2O-LiBr absorption cooling machines.
Experimental validation and
application to design.
Jesús Castro Gonzàlez
Directors de la Tesi
Dr. Assensi Oliva Llena
Dr. Carlos David Pérez Segarra
Tribunal Qualificador
Dr. Valeriano Ruiz Hernández
Universidad de Sevilla
Dr. José Manuel Pinazo Ojer
Universidad Politécnica de Valencia
Dr. Manuel Vázquez Vázquez
Universidad de Vigo
Dr. Antonio Lecuona Neumann
Universidad Carlos III de Madrid
Dr. Joaquim Rigola Serrano
Universitat Politècnica de Catalunya
8
Contents
Acknowledgements
13
Abstract
15
1 Introduction
17
1.1 Structure of this thesis . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
1.2 Heat powered cooling systems . . . . . . . . . . . . . . . . . . . . . . .
18
1.3
Introduction to absorption refrigeration . . . . . . . . . . . . . . . . .
22
1.3.1 Brief approach to the history of absorption technology . . . . .
23
1.3.2 Physical principle . . . . . . . . . . . . . . . . . . . . . . . . . .
23
1.3.3
Single effect cycle . . . . . . . . . . . . . . . . . . . . . . . . . .
25
1.4 H2O-LiBr and NH3-H2O as working fluids . . . . . . . . . . . . . . . .
26
1.5 State of the art . . . . . . . . . . . . . . . . . . . . . .