The main objective of this project is to study experimentally and theoretically the two-phase gas-liquid flow characteristics and its relations with the heat-mass transfer mechanism and to enhance the heat transfer rate by considering in the view of the fluids and equipment. All these fundamental works will be concentrated on the improvement of the performance of the refrigeration and air-conditioning system.
The project is divided into various relevant related sub-projects as follows;
2.1 Micro-Channel Heat Exchanger used for Refrigeration and Air Conditioning
2.2 Heat and Mass Transfer Characteristics of Fin-and-Tube Evaporators used in Air Conditioning system
2.3 Saturated Pool Boiling Characteristics of New Alternative Fluorine-Based Refrigerants
2.4 Pool Boiling Characteristics of New Alternative Refrigerants "Nano-Fluids"
2.5 Hydrocarbon Mixtures to Replace Refrigerants used in an Automotive Air Conditioning System
2.6 Heat Transfer, Pressure Drop and Effect of Flow Direction of Working Fluids Flowing Through
a Plate Heat Exchanger Simulated as Evaporator and Condenser
2.7. Characteristics of Refrigerant HFC-134a Flowing Through Micro-Scale Short Tube Orifices
2.8 Vertical Upward Gas-Liquid Flow in Sinusoidal Wavy Channels
2.9 Heat Transfer and Pressure Drop Characteristics of Refrigerant HFC-134a During Evaporation and Condensation in Annulus Coil Evaporator and Condenser
2.10 Two-Phase Flow Patterns, Void Fraction and Pressure Drop in a Narrow Concentric Annuli
2.11 Performance of a Vapor Compression Refrigeration Cycle Using a Two-Phase Ejector as an Expansion Device
2.12 Experimental and Theoretical Investigations of Two-Phase Flow in Micro-Channels
2.13 Effects of Electrohydrodynamics on the In-Tube Condensation and Boiling Heat Transfer Enhancement of a New Alternative Refrigerant in Smooth and Micro-Fin Tubes
2.14 Two-Phase Flow Patterns and Pressure Drop in a Small Circular Tube Vertical
Bend used in Refrigeration and Air conditioning
2.15 Forced Convective Heat Transfer Characteristic of New Alternative Refrigerants "Nano-fluid"
2.16 Selection Charts for Fluorine-Based Capillary Tubes Used in Refrigerator and Air- Conditioner
2.17 Effect of Geometric Parameters on the Air-Side Performance of Crimped Finned Tube Condenser used in the Air-Conditioning System
2.18 Heat Transfer Performance of a Helically Coiled Heat Exchanger
2.19 Performance of New Alternative Refrigerants Flowing Through Non-Adiabatic Capillary Tubes Used as An Expansion Device in Refrigeration and Air Conditioning System
2.20 Combined Refrigeration and Solar Energy Systems
