Modeling and Parametric Study of Cooling Loads Characteristics for Automotive Air-Conditioning System

Sukri, M.F.; Musa, Nor; Senawi, Mohd. Yusoff; Nasution, Henry

doi:10.4028/www.scientific.net/amm.819.189

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…Improved temperature movement is basic utility for the comfort of the passengers and must be accomplished with high resilience. For instance, the face outlet needs more temperature than the foot outlet or cooled outlet (Sukri et al 2016). So the wind stream must be guided such that these necessities have met.…”

Section: Literature Surveymentioning

confidence: 99%

An Investigation of Air Flow and Thermal Comfort of Modified Conventional Car Cabin Using Computerized Fluid Dynamics

2018

JAFM

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Air conditioning is widely used in many areas to reduce the heat and humidity of the work place and to maintain a room temperature for thermal stability and physical ability to perform various tasks. Computational Fluid Dynamics (CFD) is based on the numerical solutions of the fundamental governing equations of fluid dynamics namely the continuity, momentum and energy equations. Computerized fluent mechanics is one of the increasing paradigm in the air flow simulation in vehicle designs. The design optimization of vehicle can offer better efficiency in cabin surface as well as aerodynamic. In vehicles, air conditioning tends to offer efficient thermal conditioning and air circulation inside the cabin for passenger comfort from different climate variation. Almost all the automobiles available in the market are fitted with airconditioning systems. The manufacturers focus clearly on the AC system for a wide variety of climates. As technology advances, AC system is also adhering major advancements. In general, automobile airconditioning systems are designed to provide comfort for the driver and the passengers during a journey. The conventional electrical-driven compression systems are widely used in almost all of the automobiles today. An air-conditioner is operated to make a hot and humid passenger compartment a more comfortable environment. However, with the improvement in vehicle fuel economy, the allowable power consumption for the air-conditioner has been decreasing, in relation to the overall power consumption of the vehicle. The internal temperature-humidity conditions are an essential factor for the comfort and health of passengers, and also for the safety of drivers. In this research, the air conditioning inside vehicle cabin is analyzed. The objective of the research is to develop an air depression design inside the top surfaces of the rear cabin. The optimal flow of air inside cabin increases the thermal comfort of the vehicle. The proposed cabin depression design inside the rear top surfaces are analyzed under thermal variation and airflow circulation inside the cabin. The Ansys fluent tool is utilized in this paper to evaluate the variation of air flow and the temperature inside the passenger vehicle cabin respectively. From the research analysis, the proposed evaluation of the depression design is more optimal for air conditioning in budgetary small passenger vehicles.

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Section: Literature Surveymentioning

confidence: 99%

An Investigation of Air Flow and Thermal Comfort of Modified Conventional Car Cabin Using Computerized Fluid Dynamics

2018

JAFM

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“…A SIERRA06-0982Y3 high voltage BLDC variable speed hermetic compressor and electronic expansion valve (EEV) from Danfoss, model ETS 6 -14 are used. The selection of these two components are based on vehicle compartment cooling load model proposed by Sukri et al [16] for typical thermophysical data of 1.6L Proton Wira Aaeroback passenger car. Details of the selection process can be found in Sukri et al [17].…”

Section: Design Of Experimentsmentioning

confidence: 99%

Experimental Investigation of an Automobile Air-Conditioning System using Integrated Brushless Direct Current Motor Rotary Compressor

et al. 2016

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Abstract. The present study presents an experimental investigation on the effect of condenser air inlet temperature and dimensionless parameter of X on the performance of automobile air-conditioning (AAC) system using integrated brushless direct current motor-rotary compressor and electronic expansion valve. The other components of AAC system are from original component of AAC system used for medium size passenger car. The experimental results showed that the increment of the condenser air inlet temperature and X caused an increase in condensing temperature, cooling capacity and compressor work, while decreasing the coefficient of performance (COP). Meanwhile, the evaporating temperature increase with the increment of condenser air inlet temperature, but decrease with decrement of X. In general, AAC system have to work at higher value of X in order to produce more cooling capacity, thereby increment in compressor work also occurs due to energy balance. However, at higher value of X, the COP of the system dropped due to dominant increase in compressor power, as opposed to a rise in cooling capacity. Due to this reason, the best operation of this compressor occurs at X = 4.96 for constant T5 (35ºC), or at T5 = 30ºC for constant X (4.96).

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Modeling and Parametric Study of Cooling Loads Characteristics for Automotive Air-Conditioning System

Cited by 2 publications

References 15 publications

An Investigation of Air Flow and Thermal Comfort of Modified Conventional Car Cabin Using Computerized Fluid Dynamics

An Investigation of Air Flow and Thermal Comfort of Modified Conventional Car Cabin Using Computerized Fluid Dynamics

Experimental Investigation of an Automobile Air-Conditioning System using Integrated Brushless Direct Current Motor Rotary Compressor

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