CHAPTER 2. Thermodynamic properties of working fluids. |
Introduction. Thermodynamic diagrams of pure working fluids and mixtures. Thermodynamic properties required for working mixtures of absorption systems. thermodynamic PTX (Y) and HTX (Y) diagrams of H2O / LiBr and NH3 / H2O mixtures. Other working mixtures |
CHAPTER 4. Modelling processes in components of absorption refrigeration systems. |
Introduction. Adiabatic mixing with fluid mixtures. Desorption. Absorption. Evaporation and condensation. Pumping and expansion processes in valves and throttling devices. Heat recovery in heat exchangers. Ammonia purification in ammonia/water systems. Heat transfer in components of absorption systems |
CHAPTER 5. Absorption refrigeration systems. Technologies and modelling |
Introduction. Water systems / LiBr: technological aspects, thermodynamic modelling and analysis of the operation of the basic cycle. Representation of the cycle in a Duhring diagram (PTX). Thermodynamic modelling with heat transfer with external circuits. Multistage cycles. Double-effect, triple-effect and half-effect cycles.
Ammonia/water cooling systems; technological aspects. Thermodynamic modeling and analysis of the. operation of the basic cycle. Representation of the cycle in a Duhring diagram (PTXY) Improvement of the operation of the basic cycle. GAX cycles. Concept, configurations and design of the cycle. |
CHAPTER 6. Absorption Heat Pumps and Heat Transformers |
Introduction. Absorption heat pumps: working fluids and cycle configurations. Absorption heat pumps type I: Operational envelop of Water/LiBr and commercial products. Absorption heat transformers technology and commercial products. Modelling of the single-stage absorption heat transformer cycle. Modelling of the heat transformer with external circuits heat transfer.
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