On the Mechanism of Noise Generation in the Sirocco Fan for Automobile Air Conditioner

In this paper the irreversibilities and second law efficiency of an automobile air-conditioner with R22/R124/R152a refrigerant blend have been carried out. The engine is 1,300 c.c. capacity and operated at different compressor speeds between 13–55 rps. The irreversibility at each component of the air-conditioner increases with higher compressor speed. Significant irreversibilities have been found at the condenser and the compressor. In the case of the cycle second law efficiency, the unit with 30% mass fraction of R22 shows better performance than those with 20 and 40% mass fraction.

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EXACT — an Expert System for Automobile Air-Conditioner Compressor Troubleshooting

Expert Systems in Engineering Applications ◽

10.1007/978-3-642-84048-7_9 ◽

1993 ◽

pp. 193-208 ◽

Cited By ~ 1

Author(s):

J.-G. Chen ◽

K. Ishiko

Keyword(s):

Expert System ◽

Air Conditioner ◽

Automobile Air Conditioner

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5072106 Solar radiation quantity detecting device for automobile air-conditioner

Environment International ◽

10.1016/0160-4120(92)90038-6 ◽

1992 ◽

Vol 18 (6) ◽

pp. I-II

Author(s):

Takashi Osawa

Keyword(s):

Solar Radiation ◽

Air Conditioner ◽

Automobile Air Conditioner

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Leakage analysis and concentration distribution of flammable refrigerant R290 in the automobile air conditioner system

International Journal of Refrigeration ◽

10.1016/j.ijrefrig.2019.11.001 ◽

2020 ◽

Vol 110 ◽

pp. 286-294 ◽

Cited By ~ 1

Author(s):

Yun Zhang ◽

Cichong Liu ◽

Tianying Wang ◽

Leyan Pan ◽

Wanyong Li ◽

...

Keyword(s):

Concentration Distribution ◽

Air Conditioner ◽

Automobile Air Conditioner

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Stereoscopic PIV Measurement on Multi-Blade Fan

Volume 1: Fora, Parts A, B, C, and D ◽

10.1115/fedsm2003-45205 ◽

2003 ◽

Author(s):

G. R. Cho ◽

M. Kawahashi ◽

H. Hirahara ◽

M. Kitadume

Keyword(s):

Fluid Flow ◽

Air Conditioner ◽

Trailing Edge ◽

Inlet Flow ◽

Stereoscopic Piv ◽

Piv Technique ◽

Piv Measurement ◽

Automobile Air Conditioner ◽

Blade Width ◽

Many Sources

There are many sources of noise in multi-blade fan near the trailing edge of blades or cut-off region of the casing. The flows passing through the impeller of a multi-blade fan that is now being used as a blower for automobile air conditioner system have been successfully quantified by a stereoscopic PIV technique. Eight test sections are chosen at the inlet flow of the impeller changing the measurement angles, 0, 45, 90, 135, 180, 225, 270 and 315 degrees from cut-off point of its casing. The calibration for cameras is conducted at 9 planes within the blade width of the impeller. It is revealed that the velocity distributions are strongly influenced by the casing and cone shape, and there exists a symmetrical spiral flows in the inner part of the impeller because cut-off part of its casing disturb the fluid flow.

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Automobile Air-Conditioner Control System Based on STC12C5A60S2 Single-Chip Microcontroller

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.614-615.635 ◽

2012 ◽

Vol 614-615 ◽

pp. 635-639

Author(s):

Shu Sheng Xiong ◽

Lian Xie ◽

Sheng Kai Zhou ◽

Xiao Shuai Ren ◽

Jin Xu

Keyword(s):

Control System ◽

Software Design ◽

Hardware Design ◽

Conversion Function ◽

Air Conditioner ◽

Single Chip ◽

Important Indicator ◽

Automobile Air Conditioner ◽

High Control ◽

Control Accuracy

Recent years, automobile air-conditioner control system is particularly important as the automobile air-conditioner is becoming an important indicator to measure the comfort of a car. This paper introduces the hardware and software design of the system based on STC12C5A60S2 microcontroller.The hardware design part includes the circuits design of motor and fan, and the software design part describes the way to realize the modes conversion function. Experiments show that the automobile air-conditioner system can reach high control accuracy and it's practical.

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