Real Time Oil Concentration Measurement in Automotive Air Conditioning by Ultraviolet Light Absorption

1991 ◽  
Author(s):  
Kiyoharu Kutsuna ◽  
Yoshimitsu Inoue ◽  
Takehito Mizutani ◽  
Eiichi Sudo ◽  
Toshimi Araga
Keyword(s):  
Real Time ◽  
Ultraviolet Light ◽  
Light Absorption ◽  
Air Conditioning ◽  
Concentration Measurement ◽  
Automotive Air Conditioning ◽  
Oil Concentration

Performance of Ejector Refrigeration Cycle for Automotive Air Conditioning

2016 ◽  
Vol 819 ◽  
pp. 202-206
Author(s):  
Reza Maziar ◽  
Kasni Sumeru ◽  
M.Y. Senawi ◽  
Farid Nasir Ani
Keyword(s):  
Compression Ratio ◽  
Air Conditioning ◽  
The Other ◽  
Coefficient Of Performance ◽  
Refrigeration Cycle ◽  
Entrainment Ratio ◽  
Automotive Air Conditioning ◽  
Average Improvement

In this study, two experiments were performed, one with the conventional compression refrigeration cycle (CRC) and the other with an ejector refrigeration cycle (ERC). The CRC system for automotive air conditioning was designed, fabricated and experiments were conducted. The system was then retrofitted with an ejector as the expansion device and experiments were repeated for the ERC system. Calculations of the entrainment ratio, compressor compression ratio and coefficient of performance (COP) were made for each cycle. The calculations showed that ERC has some advantages over the CRC. In this study, an average improvement of 5% in COP has been obtained for the ERC compared with the CRC.

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