Thermodynamic analysis of the two-phase ejector air-conditioning system for buses

2015 ◽  
Vol 79 ◽  
pp. 108-116 ◽  
Author(s):  
Şaban Ünal ◽  
Tuncay Yilmaz
Keyword(s):  
Thermodynamic Analysis ◽  
Air Conditioning ◽  
Two Phase ◽  
Air Conditioning System

Effect of Condenser Temperature and Speed on one A/C System

2011 ◽  
Vol 314-316 ◽  
pp. 686-690
Author(s):  
Cheng Jun Pan ◽  
Yi Da Tang
Keyword(s):  
Mass Flow Rate ◽  
Mass Flow ◽  
Flow Rate ◽  
Air Conditioning ◽  
Systems Design ◽  
Test System ◽  
Coefficient Of Performance ◽  
Two Phase ◽  
Flow Measurements ◽  
Air Conditioning System

This study describes the results on the performance of one vehicle air conditioning system. The coefficient of performance, evaporator cooling capacity, compressor power consumption, total mass flow rate, vapor mass flow rate, liquid mass flow rate and oil in circulation, pressures and temperatures of refrigerant at every component (inlets and outlets) are measured and analyzed with the variation of the outside temperatures at the evaporator and condenser, the speed of the compressor, refrigerant charge and oil charge. The systematical experimental results obtained from this real-size test system depict the relations between the above parameters in a vehicle air conditioning system, which constitute a useful source for vehicle air conditioning systems design and analysis. The vapor quality (two-phase flow) measurements realized in this work provide an extremely important tool for diagnosing the system performances.

Characterization of two-phase flow distribution in microchannel heat exchanger header for air-conditioning system

2019 ◽  
Vol 106 ◽  
pp. 183-193 ◽  
Author(s):  
Mark Anthony Redo ◽  
Jongsoo Jeong ◽  
Niccolo Giannetti ◽  
Koji Enoki ◽  
Seiichi Yamaguchi ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Air Conditioning ◽  
Two Phase Flow ◽  
Flow Distribution ◽  
Phase Flow ◽  
Two Phase ◽  
Air Conditioning System ◽  
Microchannel Heat Exchanger

Theoretical Study of a Novel Four-Chamber Rotary Compressor: Design and Thermodynamic Analysis

2016 ◽  
Vol 819 ◽  
pp. 46-57
Author(s):  
Y.A. Alduqri ◽  
Md Nor Musa
Keyword(s):  
Thermodynamic Analysis ◽  
Air Conditioning ◽  
Theoretical Study ◽  
The Other ◽  
Rotary Compressor ◽  
Air Conditioning System ◽  
Compressor Design ◽  
Compressed Gas ◽  
Swept Volume ◽  
Design Simplicity

A novel four-chamber rotary compressor (FCRC) is being developed for a refrigerator and an air-conditioning system. The novelty lies in the usage of three rotating sleeves and two oppositely installed vanes each has one end fixed to an outer sleeve and the other end to a rotor, respectively. In this paper, the swept volume, the delivered pressure, the work and the power of the FCRC are formulated and analyzed. The compressor configuration and thermodynamic analysis are based on the 174 cc swept volume with R134a as the compressed gas. Considering the encouraging results, added by design simplicity of mainly cylindrical shaped components, the proposed FCRC is reckoned to be very suitable to be used for air-conditioning and refrigeration applications.

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