Analysis of Equivalent Fuel Savings of Electric Vehicles

Gavrilyk, Andriy; Lemishko, M.

doi:10.32447/20784643.20.2019.12

Cited by 3 publications

(3 citation statements)

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“…Автори роботи [16] експериментальним шля-хом обґрунтували найбільш значущі критерії небезпеки силових літій-іонних батарей електромобілів. У науковій праці [17] для створення необоротної екзотермічної реакції у LIB використовували пропановий пальник потужністю 15 кВт.…”

Section: аналіз останніх досліджень і публікаційunclassified

Methodology for Experimental Research of the Fire Hazard of Power Lithium-Ion Batteries of Electric Vehicles Under the Influence of a Heating Panel

Havryliuk

2024

MEC

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Even though lithium-ion batteries (LIBs) are the subject of various tests and research at the production stage, there are no isolated cases of electric vehicle fires, and the development dynamics are unpredictable. The particular danger of such fires lies in the oxygen release during an irreversible exothermic reaction in LIBs, which creates new challenges for fire and rescue services when extinguishing such fires. The study aims to develop the main provisions of the methodology for experimental studies of electric vehicle power batteries in terms of fire hazards using an electric heating panel. The ultimate goal of the study is to determine the temperatures at which an irreversible exothermic reaction, the opening of ventilation holes, and the combustion (explosion) of electric vehicle power batteries begin, as well as the time parameters at which such processes occur. Taking into account the peculiarities of the occurrence and course of the irreversible exothermic reaction, we have developed a methodology, the essence of which is to determine the temperatures of the onset of the irreversible exothermic reaction of the electric vehicle power battery, the opening of ventilation holes, and the combustion (explosion) of electric vehicle power batteries, the combustion temperatures of ventilation gases, as well as the time parameters at which these processes occur, which may change during battery operation and not correspond to the declared parameters of the manufacturer. For this purpose, we exposed LIBs to thermal energy from an electric heating panel and recorded the temperature and time during which an irreversible exothermic reaction occurs from the moment of an internal short circuit to a fire or explosion. The use of the proposed methodology of experimental studies of the elements of power batteries of electric vehicles regarding the fire hazard of an electric heating panel will make it possible to determine the temperature limits of the occurrence of irreversible exothermic reactions in LIBs, as well as the time parameters under which these processes occur. Keywords: electric vehicle fire, irreversible exothermic reaction, lithium-ion battery.

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Section: аналіз останніх досліджень і публікаційunclassified

Methodology for Experimental Research of the Fire Hazard of Power Lithium-Ion Batteries of Electric Vehicles Under the Influence of a Heating Panel

Havryliuk

2024

MEC

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“…Most widely spread sources of energy for transport vehicles are lithium-ion cells, fuel and hydrogen elements, solar cells and supercapacitors [4,5,6]. Classification of the motor vehicles, using electrical and hybrid drives is shown in the paper [7].…”

Section: Aim and Problem Set-upmentioning

confidence: 99%

“…A number of papers consider the problem of fuel efficiency evaluation. In [7] the study, dealing with the equivalent fuel efficiency of electric cars is carried out. The paper [8] contains the assessment of fuel efficiency in case of the change of engine cylinders dimensions as a result of the repair.…”

Section: Analysis Of the Recent Studies And Publicationsmentioning

confidence: 99%

STUDY OF FUEL AND EQUIVALENT ECONOMY OF TRANSPORT VEHICLES, OPERATING ON CONVENTIONAL AND ALTERNATIVE TYPES OF FUEL (Eng)

Gavryliuk

2021

SWVNTU

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Development of the automobile industry leads to annual increase of the quantity of the automobiles. In 2020 more than 78 mil. motor vehicles were manufactured in the world, lion share of the quantity falls on such manufactures as Toyota Motor Corporation (9.5 mil) and Volkswagen Group (8.7 mil). It is obvious that such amount of the world auto pool will cause numerous problems, first of all, it is the pollution of the environment by the exhaust gases and traffic jams. In particular, over 20% of all carbon dioxide (СО 2 ) emissions is generated by motor vehicles.The paper contains the list of the basic alternative sources of fuel, used in transport vehicles, such as ethanol, butanol, liquefied natural gas (LNG) and compressed natural gas (CNG), hydrogen, biogas, also the sources of electric energy for transport vehicles are: power lithium-ion batteries, fuel and hydrogen cells, solar cells and supercapacitors.Technique for determination of the fuel and equivalent efficiency, used in the USA and problems dealing with its implementation in Ukraine is considered. It was established that the Ukrainian legislation does not contain statutory-instruments, regulating the technique for determination of fuel efficiency of the transport vehicles, including the vehicles which use the alternative sources of energy. Equivalent fuel efficiency of the following motor vehicles was studied and analyzed: Chevrolet Lacetti (petrol), Renault Logan (diesel), Honda FCX Clarity (hydrogen), Ford C-Max (alcohol-containing fuel), Renault Sandero (biodiesel fuel), Nissan Qashqai (biogas), Citroёn C4 (liquefied natural gas), Nissan Leaf (electric energy). Results are presented in the form of graphic dependences.

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Features of operation of the Tesla Model S90D electric car in the conditions of the cities of Ukraine

Kachmar¹

2021

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Tendencies of sustainable development of transport, the use of alternative energy sources, and requirements to the reduction of the carbon footprint on all stages of life cycle on all levels of road transport have led to the increase of the share of the electric car both at the first registration and used vehicles. The appearance of a large amount of used modern electric cars on the market caused the necessity to develop the procedures of provision their technical operation both by requirements of rational use and provision of traffic safety. Research of the use of electric car Tesla Model S90D in conditions of Ukraine is carried out with certain indicators of environment and with different settings of car parameters. This provides an opportunity to understand how much the given model of the electric car is appropriate in exploitation in different conditions and also to determine which parameters of electric car settings fit the economic usage in different conditions and different seasons most of all. By results of road research on the change of accumulator battery capacity depending on the temperature of the environment, we established that the capacity reduces by 1% with every degree of negative temperature. A comfortable range of temperatures is determined for the use of accumulator battery of car (from 0 to 20 °С) is determined. By results of the research, the indicators of the effectiveness of the use of electric car battery power saving mode are determined – the reduction of the consumption is from 14 to 29 % depending on energy consumers. The significant impact of the pressure values in electric car tires on the energy consumption is established independently from turning on the energy consumers – the increase is from 10% to 40% depending on its speed of movement. Additionally, the determination of the indicators of electric car energy effectiveness for the speed of 140-150 km/h is carried out by which the energy use is 550-670 W h/km and provides the driving distance on the level of 160 km.

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Analysis of Equivalent Fuel Savings of Electric Vehicles

Cited by 3 publications

References 0 publications

Methodology for Experimental Research of the Fire Hazard of Power Lithium-Ion Batteries of Electric Vehicles Under the Influence of a Heating Panel

Methodology for Experimental Research of the Fire Hazard of Power Lithium-Ion Batteries of Electric Vehicles Under the Influence of a Heating Panel

STUDY OF FUEL AND EQUIVALENT ECONOMY OF TRANSPORT VEHICLES, OPERATING ON CONVENTIONAL AND ALTERNATIVE TYPES OF FUEL (Eng)

Features of operation of the Tesla Model S90D electric car in the conditions of the cities of Ukraine

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