Validation Results of Automotive Passenger Compartment and its Air Conditioning System Modeling

2000 ◽  
Author(s):  
Y. Khamsi ◽  
C Petitjean
Keyword(s):  
Air Conditioning ◽  
System Modeling ◽  
Passenger Compartment ◽  
Air Conditioning System

Seats and Air Conditioning System Provide for Comfort in the Passenger Compartment

2009 ◽  
Vol 14 (1) ◽  
pp. 110-117
Author(s):  
Thomas Fölster ◽  
Wolfgang Rilling ◽  
Egon Katz ◽  
Marion Rothfuss ◽  
Thorsten Helbig ◽  
...  
Keyword(s):  
Air Conditioning ◽  
Passenger Compartment ◽  
Air Conditioning System

Numerical Investigation on Thermal Environment inside the Passenger Compartment of a Highway Sleeper Coach

2011 ◽  
Vol 55-57 ◽  
pp. 215-218
Author(s):  
Xu Liang Xie ◽  
Fu Lin Shen
Keyword(s):  
Temperature Field ◽  
Air Conditioning ◽  
Thermal Environment ◽  
Solar Irradiation ◽  
Discrete Ordinates ◽  
Passenger Compartment ◽  
Radiation Model ◽  
Air Conditioning System ◽  
Characteristic Distribution ◽  
Air Inlet

In order to verify thermal comfort of a 12-meter-long highway sleeper coach equipped with a four-ducted air-conditioning system, the thermal environment inside the passenger compartment was numerical investigated with RNG k-ε turbulence model. Also, discrete ordinates radiation model was applied to consider the effect of solar irradiation. The characteristic distribution of the airflow organization and temperature field were obtained and compared with experiment results. Results show that the air flow and temperature distribution inside the passenger compartment are not uniform and greatly influenced by solar radiation and air inlet parameters.

scholarly journals Simulation Calculation of Air Conditioning System Under Complex Vehicle Conditions

2021 ◽  
Vol 233 ◽  
pp. 04024
Author(s):  
He Chang ◽  
Lili Cheng
Keyword(s):  
Energy Consumption ◽  
Change Process ◽  
Air Conditioning ◽  
Simulation System ◽  
Vehicle Speed ◽  
Performance Parameters ◽  
Passenger Compartment ◽  
Air Conditioning System ◽  
Joint Simulation ◽  
Simulation Calculation

Based on the Simulink the vehicle air conditioning simulation platform for the whole vehicle is established. The multi model joint simulation system can predict the performance parameters and energy consumption of the air conditioning system under the conditions of different vehicle speed, temperature and humidity. It can coordinate the simulation of the temperature change process inside the passenger compartment with the performance of the air conditioning system.

scholarly journals A Review on Industrial Cooling System

2020 ◽  
Vol 6 (7) ◽  
pp. 1-4
Author(s):  
Shubham Shukla ◽  
Rajeev Arya ◽  
Nilesh Diwakar
Keyword(s):  
Air Conditioning ◽  
Energy Savings ◽  
Cooling System ◽  
Thermal Sensation ◽  
System Modeling ◽  
Thermal Processes ◽  
Hvac System ◽  
Air Conditioning System ◽  
Air Handling Unit ◽  
Hvac System Modeling

The modeling of the heating, ventilation, and air conditioning (HVAC) system is a prominent topic because of its relationship with energy savings and environmental, economic, and technological issues. The modeling of the HVAC system is concerned with the indoor thermal sensation, which is related to the modeling of building, air handling unit (AHU) equipment’s, and indoor thermal processes.  This paper shows the HVAC model and the Winter Air Conditioning System, Summer Air Conditioning System. Until now, many HVAC system modeling approaches are made available, and the techniques have become quite mature.

Experimental Study on the Replacement of HFC-R134a by Hydrocarbons in Automotive Air Conditioning System

2013 ◽  
Vol 388 ◽  
pp. 111-115
Author(s):  
Mohd Rozi Mohd Perang ◽  
Henry Nasution ◽  
Abdul Latiff Zulkarnain ◽  
Azhar Abdul Aziz ◽  
Afiq Aiman Dahlan
Keyword(s):  
Electric Motor ◽  
Air Conditioning ◽  
Internal Heat ◽  
Motor Speed ◽  
Passenger Compartment ◽  
Test Rig ◽  
Air Conditioning System ◽  
Automotive Air Conditioning ◽  
Automotive Air Conditioning System ◽  
Heat Loads

The HFC-R134a and hydrocarbon refrigerant (HCR) will be evaluated on the automotive air conditioning (AAC) experimental test rig which completed with the AAC system including the blower, evaporator, condenser, radiator, electric motor, compressor, alternator and equipped with the simulation room acting (equipped with internal heat load) as the passenger compartment. The electric motor operated as a car’s engine and will drive the compressor simultaneously to the alternator to recharge the battery. The tests have been performed by varying the motor speed; 1000, 2000 and 3000 rpm, temperature set-point; 21 and 230C, and internal heat loads; 0, 500, 700 and 1000 W. The results of the performance characteristics of the HCR indicate the encouraging enhancement of the AAC system compared to Hydrofluorocarbon refrigerant (HFC-R134a).

ANALYSIS OF COMPETING VARIANTS OF AIR CONDITIONING SYSTEMS WITHOUT AIR EXTRACTION FROM ENGINES AT THE STAGE OF PASSENGER AIRCRAFT ONBOARD SYSTEMS CONCEPTUAL DESIGN

2019 ◽  
Vol 6 (3) ◽  
pp. 80-85
Author(s):  
Denis Igorevich Smagin ◽  
Konstantin Igorevich Starostin ◽  
Roman Sergeevich Savelyev ◽  
Anatoly Anatolyevich Satin ◽  
Anastasiya Romanovna Neveshkina ◽  
...  
Keyword(s):  
Conceptual Design ◽  
Air Conditioning ◽  
Research University ◽  
Cooling System ◽  
Fuel Efficiency ◽  
Air Cooling ◽  
Moscow Aviation Institute ◽  
Air Conditioning System ◽  
Low Efficiency ◽  
Air Conditioning Systems

One of the ways to achieve safety and comfort is to improve on-board air conditioning systems.The use of air cooling machine determines the air pressure high level at the point of selection from the aircraft engine compressor. Because of the aircraft operation in different modes and especially in the modes of small gas engines, deliberately high stages of selection have to be used for ensuring proper operation of the refrigeration machine in the modes of the aircraft small gas engines. Into force of this, most modes of aircraft operation have to throttle the pressure of the selected stage of selection, which, together with the low efficiency of the air cycle cooling system, makes the currently used air conditioning systems energy inefficient.A key feature of the architecture without air extraction from the main engines compressors is the use of electric drive compressors as a source of compressed air.A comparative analysis of competing variants of on-board air conditioning system without air extraction from engines for longrange aircraft projects was performed at the Moscow Aviation Institute (National Research University).The article deals with the main approaches to the decision-making process on the appearance of a promising aircraft on-board air conditioning system at the stage of its conceptual design and formulated the basic requirements for the structure of a complex criterion at different life cycle stages.The level of technical and technological risk, together with a larger installation weight, will require significant costs for development, testing, debugging and subsequent implementation, but at the same time on-board air conditioning system scheme without air extraction from the engines will achieve a significant increase in fuel efficiency at the level of the entire aircraft.

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