Thermodynamic Analysis of Air-Cycle Refrigeration Systems with Expansion Work Recovery for Compartment Air Conditioning

A Transcritical Refrigeration Cycle with Carbon Dioxide for Bus Air Conditioning and Transport Refrigeration

The frrst part of this paper presents carbon dioxide air conditioning units which were installed in two city buses. The two buses were tested "on-the-road" during summer 1997 in Bad Hersfeld, Germany. By the end of 1997, the air condition systems of the two buses had been running together for more than 860 hours proving that C02 systems fulfill important on-the-road requirements. In the second ...

Fully Fresh Air Air-conditioning System Equipped with Double Heat Pipe Based Heat Recovery Technology

The using of double heat pipe based heat exchanger (HPHX) in a conventional fully fresh air air-conditioning (AC) system was examined in the present study. The fabricated HPHXs were tested under the actual conditions and the measured data were used to study the performance of the existing AC system (System A) and AC system equipped with the double HPHX (System B) for a yearly operation through ...

A Review on Developments of Thermoelectric Refrigeration and Air Conditioning Systems: a Novel Potential Green Refrigeration and Air Conditioning Technology

In recent years, with the increase awareness towards environmental degradation due to the production, use and disposal of ChloroFluoro Carbons (CFCs) and Hydro Chlorofluorocarbons (HCFCs) as heat carrier fluids in conventional refrigeration and air conditioning systems has become a subject of great concern and resulted in extensive research into development of novel refrigeration and space cond...

Thermodynamics of Air/Water-Cycle Air-Conditioning Systems

Application of Pinch Analysis in an Air-Conditioning Refrigeration System

A new method pinch analysis is introduced to discuss design optimization of the air-conditioning refrigeration system from the point of view of saving energy and saving material, and the evaluation principle of system economy is built up. The method avoids the defect of traditional design method using experience, easy to realize optimum match between system component parts. c Cp COP F G H M p P...