Recent advances and sustainable solutions in automobile air conditioning systems

Vashisht, Sagar; Rakshit, Dibakar

doi:10.1016/j.jclepro.2021.129754

Cited by 64 publications

(16 citation statements)

References 121 publications

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“…Also, there are a real need for a solution of a sustainable developments in industrial sectors. Pollution levels are skyrocketing as the automobile industry expands daily [14]. In this context, fluids that may be suitable for vehicle air conditioners have been examined in this study.…”

Section: Safety Characteristicsmentioning

confidence: 99%

“…In addition to these studies, there are studies on refrigerants such as R-152a, R-430a, R-290, which can be an alternative to R-13a refrigerant in vehicle air conditioning systems [5][6][7][8][9][10][11]. Many studies have been conducted to determine the appropriate design of a bus air conditioner [12][13][14]. From the experimental studies, it has been obtained that the R-513A and 410-a refrigerant has higher performance than R-134a the refrigerants [15,16].…”

Section: Introductionmentioning

confidence: 99%

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Exergy Analyses of Vehicles Air Conditioning Systems for Different Refrigerants

Keven

2023

International Journal of Computational and Experimental Science and Engineering

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There are a limited number of studies in the literature that include detailed exergy analysis of vehicle air conditioning systems. In this study, in order to increase the performance of the air conditioning system in vehicles, a detailed exergy analysis has been made with the assumption that different refrigerants are used. R-134A, R-E245cb2, R-404A, R-1234ze(Z), R-161, R-1234zd(E), R-513A, R-1234ze(E) and R-1234yf has been chosen as the refrigerant. In the analysis, a comparison has been made by considering the environment, performance and safety values. While the COP values of the cycles increase with increasing evaporator temperatures, the COP values decrease at increasing condenser temperatures. On the other hand, exergy efficiency decreases with increasing evaporator and condenser temperatures. Also it is aimed to evaluate all the elements of a vehicle air conditioning system with exergy analysis.

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Section: Safety Characteristicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Exergy Analyses of Vehicles Air Conditioning Systems for Different Refrigerants

Keven

2023

International Journal of Computational and Experimental Science and Engineering

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“…A 10% reduction in mass results in a 6% improvement in fuel efficiency, by which CO 2 emission will be reduced significantly over the lifetime of the vehicle [1]. Aluminum, being light in comparison to steel, is an excellent choice of material for weight reduction in automobile and aerospace sectors (where it is available in both sheet and cast forms) [2][3][4][5]. The aluminum industry offers a wide range of aluminum alloys with various combinations of strength, ductility, wear, and corrosion resistance [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Tribological Behavior of Gravity and Squeeze Cast Novel Al-Si Alloy

Chandra

Krishna

Ravi

et al. 2022

Metals

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The automotive industry traditionally reduces weight primarily by value engineering and thickness optimization. However, both of these strategies have reached their limits. A 6% reduction in automotive truck mass results in a 13% improvement in freight mass. Aluminum alloys have lower weight, relatively high specific strength, and good corrosion resistance. Therefore, the present manuscript involves manufacturing Al-based alloy by squeeze casting. The effect of applied pressure during the squeeze cast and gravity cast of a novel Al-Si alloy on microstructural evolution, and mechanical and wear behavior was investigated. The results demonstrated that squeeze casting of the novel Al-Si alloy at high-pressure exhibits superior mechanical properties and enhanced wear resistance in comparison to the gravity die-cast (GDC) counterpart. Squeeze casting of this alloy, at high pressure, yields fine dendrites and reduced dendritic arm spacing, resulting in grain refinement. The finer dendrites and reduced dendritic arm spacing in high-pressure squeeze cast alloy than in the GDC alloy were due to enhanced cooling rates observed during the solidification process, as well as the applied squeeze pressure breaks the initial dendrites that started growing during the solidification process. Reduced casting defects in the high-pressure squeeze cast alloy led to a reduced coefficient of friction, resulting in improved wear resistance even at higher loads and higher operating temperatures. Our results demonstrated that squeeze casting of the novel Al-Si alloy at high-pressure exhibits a 47% increase in tensile strength, 33% increase in hardness, 10% reduction in coefficient of friction, and 15% reduction in wear loss compared to the GDC counterpart.

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“…Qinghai et al [16] studied the efficiency of a cooler. Optimizing the COP of the cooler [17,18] and the coolers/power generators for automobiles [19] have been performed. Next, Srivastava et al [20] numerically analyzed vehicle cabins with solar-assisted thermoelectric cooling/heating systems.…”

Section: Introductionmentioning

confidence: 99%

Study on Thermal Performance of the Small-Scale Air Conditioning with Thermoelectric Cooling Module

Poojeera¹,

Srichat²,

Naphon³

et al. 2022

MMEP

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This work presents the COP and EER of the combined air conditioning and thermoelectric cooling systems. The small-scale air conditioning (8000 BTU/hr) with thermoelectric cooling systems is set up in the closed room (2.0*2.0*2.0 m), and free energy from the photovoltaic cell is used for the thermoelectric cooling module. The COP and EER with the thermoelectric cooling module are higher than those without the thermoelectric cooling module. It is observed that the COP and EER increase as the axial fan speeds increase. In addition, there is good agreement from the comparison, giving an average error of 3.77%. The highest COP and EER for the system with the thermoelectric cooling module are 1.71 and 5.85 for an airflow rate of 4.7 m3/s, respectively. The results can be used as guidelines for developing the thermal performance of air conditioning by combining it with the thermoelectric cooling module.

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Recent advances and sustainable solutions in automobile air conditioning systems

Cited by 64 publications

References 121 publications

Exergy Analyses of Vehicles Air Conditioning Systems for Different Refrigerants

Exergy Analyses of Vehicles Air Conditioning Systems for Different Refrigerants

Mechanical and Tribological Behavior of Gravity and Squeeze Cast Novel Al-Si Alloy

Study on Thermal Performance of the Small-Scale Air Conditioning with Thermoelectric Cooling Module

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