Recent Advances on the Electric Vehicle Heat Pump Air Conditioning Systems

2021 ◽  
Vol 14 ◽  
Author(s):  
Bin Peng ◽  
Yubo Zhang ◽  
Pengcheng Zhang ◽  
Hanif Ullah
Keyword(s):  
Electric Vehicle ◽  
Heat Pump ◽  
Electric Vehicles ◽  
Air Conditioning ◽  
New Technology ◽  
Research Work ◽  
High Energy ◽  
Air Conditioning System ◽  
Electrical Vehicle ◽  
Recent Developments

Background: Heat pump air conditioning technology has broad application prospects and high market value in the field of electric automobiles owing to its increasing performance and energy saving. Pure electric vehicles require high-energy consumption at low temperatures, which seriously affects the popularity of electric vehicles with a heat pump air conditioning system. Objective: The aim of this research is to describe the recent developments in the study of the heat pump air conditioning system for electric vehicles. Methods: This paper summarizes the research work of scholars published worldwide based on the electric vehicle heat pump air conditioning system, premised on lately published patents and journal articles. Starting from the components of the air conditioning system, focus on the research results and development trends that have been achieved in this field. Results: The new technology path and pattern of the electrical vehicle heat pump air conditioning system provide methods and suggestions for future growth, put forward by the current development situation. Conclusion: The latest progress of the electric vehicle heat pump air conditioning system has been summarized and prospected. There are still some problems and technical bottlenecks in heat pump air conditioning system. It is of great significance to improve the environmental adaptability of electric vehicles and optimize the reasonable heat pump air conditioning system for the endurance of electric vehicles.

scholarly journals Heat pump air conditioning system for pure electric vehicle at ultra-low temperature

2014 ◽  
Vol 18 (5) ◽  
pp. 1667-1672 ◽  
Author(s):  
Hai-Jun Li ◽  
Guang-Hui Zhou ◽  
An-Gui Li ◽  
Xu-Ge Li ◽  
Ya-Nan Li ◽  
...  
Keyword(s):  
Low Temperature ◽  
Electric Vehicle ◽  
Heat Pump ◽  
Air Conditioning ◽  
Heating System ◽  
Experimental Results ◽  
Air Conditioning System ◽  
Discharge Temperature ◽  
Heating Capacity ◽  
Environment Temperature

When the ordinary heat pump air conditioning system of a pure electric vehicle runs at ultra-low temperature, the discharge temperature of compressor will be too high and the heating capacity of the system will decay seriously, it will lead to inactivity of the heating system. In order to solve this problem, a modification is put forward, and an experiment is also designed. The experimental results show that in the same conditions, this new heating system increases more than 20% of the heating capacity; when the outside environment temperature is negative 20 degrees, the discharge temperature of compressor is below 60 degrees.

scholarly journals Impact of the Air-Conditioning System on the Power Consumption of an Electric Vehicle Powered by Lithium-Ion Battery

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Brahim Mebarki ◽  
Belkacem Draoui ◽  
Boumediène Allaou ◽  
Lakhdar Rahmani ◽  
Elhadj Benachour
Keyword(s):  
Lithium Ion Battery ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
Air Conditioning ◽  
Storage Capacity ◽  
Lithium Ion ◽  
Noise Pollution ◽  
Air Conditioning System ◽  
Energy Storage Capacity ◽  
Basic Goal

The car occupies the daily universe of our society; however, noise pollution, global warming gas emissions, and increased fuel consumption are constantly increasing. The electric vehicle is one of the recommended solutions by the raison of its zero emission. Heating and air-conditioning (HVAC) system is a part of the power system of the vehicle when the purpose is to provide complete thermal comfort for its occupants, however it requires far more energy than any other car accessory. Electric vehicles have a low-energy storage capacity, and HVAC may consume a substantial amount of the total energy stored, considerably reducing the vehicle range, which is one of the most important parameters for EV acceptability. The basic goal of this paper is to simulate the air-conditioning system impact on the power energy source of an electric vehicle powered by a lithium-ion battery.

THE PERFORMANCE OF CONDENSER UNDER DIFFERENT VEHICLE SPEEDS

2013 ◽  
Vol 21 (02) ◽  
pp. 1350013 ◽  
Author(s):  
CHIH-CHIU SHEN ◽  
JAU-HUAI LU
Keyword(s):  
Electric Vehicle ◽  
Electric Vehicles ◽  
Air Conditioning ◽  
High Efficiency ◽  
Cooling Capacity ◽  
Vehicle Speed ◽  
Air Conditioner ◽  
Electric Motors ◽  
No Emission ◽  
Air Conditioning System

Due to the concern in energy shortage and environmental protection, electric vehicle is considered to be a substitute for the conventional gasoline-powered vehicles due to its characteristics of high efficiency and no emission. However, the load of air conditioning causes a serious problem for electric vehicles, especially in tropical and subtropical areas. The compressor of conventional air conditioning system is driven by engine and its speed is thus coupled to vehicle speed. In electric vehicles, the compressor is driven by electric motors and compressor speed could be decoupled to vehicle speed. This mechanism provides an opportunity to improve the energy efficiency of electric vehicle since the operation of air conditioning system may be independent of vehicle speed. The purpose of this paper is to find out the electric fan operation model as vehicle speed is varied. This paper was to establish a theoretical model for the condenser of automotive air conditioner and to conduct simulation to evaluate the effect of vehicle speed on the cooling capacity and sub-cooling of condenser. Results of simulation demonstrated that vehicle with 6 km h-1 speed has the 5°C of sub-cooling at 0.0266 kg s-1 of refrigerant flow rate and the cooling capacity was 4.93 kW. In this study, an increase of 16.6% in cooling capacity can be reached as the speed of vehicle was raised from 6 to 110 km h-1 and can promote the sub-cooling to 19.5°C. It was also found that the cooling capacity of air conditioner is extremely sensitive to vehicle speed while the vehicle is running at low speed. Furthermore, increases in the vehicle speed resulted in reduction of the length of superheat region from 17.5 to 8.5 cm. Finally, a correlation among these variables and the simulated cooling capacity was obtained in this study, enabling the relevant researchers to evaluate automotive air conditioner performance under different vehicle speeds more easily.

Aspects of Modeling and Optimizing Air Circulation Currents in a Car Cabin

2014 ◽  
Vol 659 ◽  
pp. 163-170
Author(s):  
Vasile Caunii ◽  
Adrian Sachelarie
Keyword(s):  
Thermal Comfort ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
Fuel Economy ◽  
Air Conditioning ◽  
Hybrid Electric Vehicles ◽  
Air Conditioning System ◽  
Main Components ◽  
High Level ◽  
Air Circulation

Air conditioning system is one of the main components of modern cars, which defines the level of comfort, its performances directly affecting the car performances. In order to have a car with high level of thermal comfort, the air-conditioning system must be efficient in terms of energy, it has to perform many functions regarding the microclimate control (control of temperature, humidity, filtration), and in addition must fulfill safety and security functions in circulation (demisting and defrosting). Also vehicle air-conditioning system can significantly influence fuel economy and tailpipe emissions of conventional and hybrid electric vehicles (HEV) and reduce electric vehicle (EV) range.

Study on Application of Ground-Source Heat Pump Air Conditioning System in Hohhot

2011 ◽  
Vol 282-283 ◽  
pp. 379-383
Author(s):  
Ling Li He ◽  
Shu Feng Yang ◽  
Ye Fei Bai
Keyword(s):  
Heat Pump ◽  
Air Conditioning ◽  
New Technology ◽  
Ground Source Heat Pump ◽  
System Operation ◽  
Air Conditioning System ◽  
Air Conditioners ◽  
Ground Source ◽  
Cold Area ◽  
Inner Mongolia Autonomous Region

The technology of ground-source heat pump is a revolutionary new technology emerging in the field of central air conditioners for buildings in China. Its application in Hohhot grew continuously in recent years. Based on the demonstration project of general office building of the Development & Reform Commission, Inner Mongolia Autonomous Region, this paper studies the application of ground-source heat pump air conditioning system with supporting heat source in northern cold area, analyzing the energy consumption of system operation, presenting some problems in the operation and solutions thereof, and concluding that the ground-source heat pump air conditioning system is feasible in Hohhot.

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