scholarly journals Research on New Cleaning Method of Automobile Air Conditioner

2022 ◽  
Vol 2160 (1) ◽  
pp. 012047
Author(s):  
Xiaotao Tang ◽  
He Huang
Keyword(s):  
Air Conditioning ◽  
Health And Safety ◽  
Normal Operation ◽  
Air Conditioner ◽  
Internal Damage ◽  
Chemical Substances ◽  
Cleaning Method ◽  
Secondary Pollution ◽  
Automobile Air Conditioner ◽  
Clean Air

Abstract on the car air conditioning cleaning market at present there are some problem of cleaning method has been widely criticized, simple and convenient cleaning method, in particular, the so-called clean air conditioning is “only spray cleaner, no water washing”, this will cause the pipeline internal dirt clean is not complete, easy to internal damage other parts of automobile air conditioning, affect the normal operation of the air conditioning, the remaining part of the chemical substances will also produce secondary pollution to the air inside the car, seriously affects people’s health and safety.

Automotive Air Conditioning Compressor Noise Source Identification Method

2015 ◽  
Vol 741 ◽  
pp. 397-400
Author(s):  
Xiao Bo Huang ◽  
Jun Ye ◽  
Shu Sheng Xiong ◽  
Bin Tao Mao ◽  
Ying Hui Wang ◽  
...  
Keyword(s):  
Noise Reduction ◽  
Air Conditioning ◽  
Noise Source ◽  
Air Conditioner ◽  
Noise Sources ◽  
Major Objective ◽  
Identification Methods ◽  
Automotive Air Conditioning ◽  
Automobile Air Conditioner ◽  
Noise Source Identification

With the improvement of requirements for vehicle comfort, people put forward higher requirements on the noise control of automotive air conditioning. As the power source of the automobile air conditioner, the compressor is also the main noise sources, so it is the major objective of vibration damping and noise reduction. In this paper, with analyzing the noise mechanism of compressor, introduces four identification methods of automotive air conditioning compressor noise source, providing theoretical basis for automobile air conditioning damping and noise reduction.

Study on Water-Cooled Solar Semiconductor Air Conditioner

2015 ◽  
Vol 9 (1) ◽  
pp. 135-140
Author(s):  
Dong Zhi-Ming ◽  
Guo Li-Xia ◽  
Chang Ji-Bin ◽  
Zhou Xue-Bin
Keyword(s):  
Air Conditioning ◽  
Working Condition ◽  
Test System ◽  
Air Conditioner ◽  
Solar Panels ◽  
Experimental Room ◽  
Maximum Value ◽  
Cooling Unit ◽  
Battery Capacity ◽  
Solar Powered

Aiming to compare the cooling effect, two types of solar-powered semiconductor air-conditioning devices were designed in different structures. According to the cooling load in an experimental room, the solar panels and battery capacity were determined for the development of a test system. In the same working condition, a comparison test was carried out to examine the cooling performance. Experimental results showed that the design of dual water-cooled cooling unit presented a higher ratio of energy efficiency, with its maximum value of 1.08. By observing the experimental data of the prototype, its comparative economic evaluation results indicated that the annualized cost of solar semiconductor airconditioning was app. 2.7 times that of air-conditioning made from an ordinary compressor.

Experimental evaluation on a centralized air conditioning system embedded with a split-type air conditioner as a dedicated subcooler

2021 ◽  
pp. 102585
Author(s):  
Kasni Sumeru ◽  
Mohamad Firdaus Sukri ◽  
Triaji Pangripto Pramudantoro ◽  
Eddy Erham ◽  
Rizki Muliawan
Keyword(s):  
Experimental Evaluation ◽  
Air Conditioning ◽  
Air Conditioner ◽  
Air Conditioning System

scholarly journals Optimal Air Conditioner Placement Using a Simple Thermal Environment Analysis Method for Continuous Large Spaces with Predominant Advection

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4663
Author(s):  
Tatsuhiro Yamamoto ◽  
Akihito Ozaki ◽  
Myonghyang Lee
Keyword(s):  
Air Conditioning ◽  
Thermal Environment ◽  
Fluid Dynamic ◽  
Optimal Placement ◽  
Air Conditioner ◽  
Analysis Method ◽  
Computational Fluid Dynamic Analysis ◽  
Environment Analysis ◽  
Air Conditioners ◽  
Energy Simulations

The number of houses with large, continuous spaces has increased recently. With improvements in insulation performance, it has become possible to efficiently air condition such spaces using a single air conditioner. However, the air conditioning efficiency depends on the placement of the air conditioner. The only way to determine the optimal placement of such air conditioners is to conduct an experiment or use computational fluid dynamic analysis. However, because the analysis is performed over a limited period, it is difficult to consider non-stationarity effects without using an energy simulation. Therefore, in this study, energy simulations and computational fluid dynamics analyses were coupled to develop a thermal environment analysis method that considers non-stationarity effects, and various air conditioner arrangements were investigated to demonstrate the applicability of the proposed method. The accuracy verification results generally followed the experimental results. A case study was conducted using the calculated boundary conditions, and the results showed that the placement of two air conditioners in the target experimental house could provide sufficient air conditioning during both winter and summer. Our results suggest that this method can be used to conduct preliminary studies if the necessary data are available during design or if an experimental house is used.

Second Law Analysis of an Automobile Air-Conditioner With R22/R124/R152a Refrigerant Mixture

1997 ◽  
Author(s):  
T. Kiatsiriroat ◽  
T. Euakit
Keyword(s):  
Mass Fraction ◽  
Second Law ◽  
Air Conditioner ◽  
Refrigerant Mixture ◽  
Automobile Air Conditioner ◽  
Second Law Analysis

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.

Solar Heat Underground Storage Based Air Conditioning Vis-à-Vis Conventional HVAC Experimental Validation

2017 ◽  
Vol 140 (1) ◽  
Author(s):  
Carlos R. de Nardin ◽  
Felipe T. Fernandes ◽  
Adriano J. Longo ◽  
Luciano P. Lima ◽  
Felix A. Farret ◽  
...  
Keyword(s):  
Air Conditioning ◽  
Heat Pumps ◽  
Conventional Heating ◽  
Management Technique ◽  
Air Conditioner ◽  
Heat Management ◽  
Air Conditioners ◽  
Solar Heat ◽  
Reduction Of Energy Consumption ◽  
The One

This paper presents a comparison of air conditioners using the conventional heating, ventilation, and air conditioning heat pumps and the one using solar heat stored underground, also known as shallow geothermal air conditioning. The proposed air conditioner with solar heat stored underground reunites practical data from an implementation of the heuristic perturb-and-observe (P&O) control and a heat management technique. The aim is to find out the best possible heat exchange between the room ambient and the underground soil heat to reduce its overall consumption without any heat pump. Comparative tests were conducted in two similar rooms, each one equipped with one of the two types of air conditioning. The room temperature with the conventional air conditioning was maintained as close as possible to the temperature of the test room with shallow geothermal conditioning to allow an acceptable data validation. The experiments made both in the winter of 2014 and in the summer of 2015 in Santa Maria, South Brazil, demonstrated that the conventional air conditioner consumed 19.08 kWh and the shallow geothermal conditioner (SGC) consumed only 4.65 kWh, therefore, representing a reduction of energy consumption of approximately 75%.

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

2008 ◽  
Vol 74 (748) ◽  
pp. 2552-2559 ◽  
Author(s):  
Yasuhiko SAKAI ◽  
Takaaki KATO ◽  
Yuu MORIGUCHI ◽  
Masaharu SAKAI ◽  
Kouji ITO ◽  
...  
Keyword(s):  
Noise Generation ◽  
Air Conditioner ◽  
Automobile Air Conditioner ◽  
Sirocco Fan

scholarly journals Performance analysis of retrofit R410a refrigerant with R32 refrigerant on a split air conditioner

2021 ◽  
Vol 2 (1) ◽  
pp. 1-4
Author(s):  
I Nengah Ardita ◽  
◽  
I Gusti Agung Bagus Wirajati ◽  
I Dewa Made Susila ◽  
Sudirman Sudirman ◽  
...  
Keyword(s):  
System Performance ◽  
Air Conditioning ◽  
Quantitative Description ◽  
Air Conditioner ◽  
Experimental Equipment ◽  
Evaporation Heat ◽  
Before And After ◽  
Common Group ◽  
The Cost ◽  
Design And Manufacture

Split air conditioning (AC) is the most widely used in the community for both commercial and domestic utilities. At the present refrigerant which used in Split AC is mostly common group of HFCs, such as R410a. R410a is a zeotropic refrigerant and if there is a leak in the system, it cannot be added this refrigerant. This will increase the cost of maintenance. The aims of this research is to investigate the retrofit of R410a with R32 on the Split AC system. The R32 is chosen because it has higher latent evaporation heat at the same temperature and has less effect on global warming. The refrigeration effect, the power consumption and the system performance are the main three quantities that want to be examined in this research which are observed before and after retrofit. Experimental investigation conducted during this research, including design and manufacture of experimental equipment, calibration and tools installment, collecting the experimental data and analysis by quantitative description method before and after retrofit. The results informed that cooling effect increased during the research, but the COP system has a slight decrease about 4%. R32 refrigerant is quite feasible as a retrofit refrigerant to R410a refrigerant.

scholarly journals Design Modification of Automated Power Window Circuit System for Automobiles Air -Condition.

2020 ◽  
pp. 264-270
Author(s):  
Joseph Sekyi-Ansah ◽  
James Kwasi Quaisie ◽  
Isaac Eduyah ◽  
Mohammed Okoe Alhassan ◽  
Eric Quansah ◽  
...  
Keyword(s):  
21St Century ◽  
Automobile Industry ◽  
Air Conditioning ◽  
Air Conditioner ◽  
Design Modification ◽  
The Road ◽  
Turn On ◽  
On The Road

Air conditioning has become a key component in the automobile industry now, and almost every vehicle manufactured in the 21st century has air conditioning integrated. Most drivers drive with their air conditioning on while some of their windows are not fully closed; this affects the operation of the air conditioning. In addition, if the driver wants to turn on the air conditioning while driving, he or she has to move up the power windows manually after or before he or she turns on the air conditioning, which may affect his or her concentration on the road. The concept of this power window circuit system is to automatically close the windows after a few seconds when the air conditioner is turned on.

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