scholarly journals RESEARCH OF THE AIR TEMPERATURE INFLUENCE ON FUEL CONSUMPTION OF A PASSENGER CAR CONVERTED TO OPERATE ON LIQUEFIED PETROLEUM GAS

2021 ◽  
pp. 60-67
Author(s):  
Roman O. Rekhalov ◽  
◽  
Evgeniy M. Chikishev ◽  
Keyword(s):  
Fuel Consumption ◽  
Alternative Fuels ◽  
Motor Vehicle ◽  
Motor Vehicles ◽  
Liquefied Petroleum Gas ◽  
Passenger Car ◽  
Factors Affecting ◽  
Mobile Sources ◽  
Air Temperatures ◽  
Gas Consumption

Due to the rapid growth of environmental pollution from mobile sources, the part of alternative fuels use is increasing. One of these for motor vehicle is liquefied petroleum gas (LPG). This study focuses on the LPG use by Mitsubishi Lancer X passenger car in driving conditions. Based on the results of the previous studies analysis, the most significant factors affecting the change in fuel consumption by motor vehicles were identified. It was proved that the decrease in the ambient temperature from +30 to –20 °C leads to an increase in gas consumption from 11.2 to 13.6 l/100 km. In addition, at air temperatures from –20 °C and below, the gas-fueled engine is unstable.

scholarly journals The effects of gear shift indicator usage on fuel efficiency of a motor vehicle

2017 ◽  
Vol 21 (1 Part B) ◽  
pp. 707-713 ◽  
Author(s):  
Ivan Blagojevic ◽  
Goran Vorotovic ◽  
Dragan Stamenkovic ◽  
Nebojsa Petrovic ◽  
Branislav Rakicevic
Keyword(s):  
Fuel Consumption ◽  
Motor Vehicle ◽  
Fuel Efficiency ◽  
Motor Vehicles ◽  
Vehicle Speed ◽  
Maximum Difference ◽  
Factors Affecting ◽  
Gear Shift ◽  
Passenger Vehicles ◽  
Main Factors

The manner of gear shifting is one of the main factors affecting the fuel efficiency of motor vehicles. Potential savings resulted from optimized gear shifting led to introduction of gear shift indicators in passenger vehicles as an obligation from year 2012. The effects of gear shift indicators usage are still not studied enough. That was the motive for the authors to conduct the experiments to justify their usage, both from the economic and ecological standpoint. The presented results come from the tests conducted on FIAT 500L vehicle to determine the fuel consumption using the new European driving cycle, but for three different gear shift patterns: (1) as defined in UNECE Regulation No. 83, (2) as indicated by vehicle?s gear shift indicator, and (3) based on the average vehicle speed values collected from gear shift indicators of 35 passenger vehicles of different makes, types, and characteristics. Maximum difference in fuel consumption recorded in tests done using three different gear shift patterns is 18.7%.

scholarly journals FAKTOR-FAKTOR YANG MEMPENGARUHI KEPATUHAN WAJIB PAJAK DALAM MEMBAYAR PAJAK KENDARAAN BERMOTOR (PKB) DI UNIT PELAYANAN PENDAPATAN PROVINSI (UPPP) KABUPATEN SELUMA

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
R.A. Vivi Yulian Sari ◽  
Neri Susanti
Keyword(s):  
Rating Scale ◽  
Motor Vehicle ◽  
Tax Compliance ◽  
Descriptive Study ◽  
Motor Vehicles ◽  
Factors Affecting ◽  
Service Unit ◽  
Scale Method

R.A. Vivi Yulian Sari, Neri Susanti; Factors That Influence Compliance With Taxpayers In Paying Tax On Motor Vehicles In The Province Revenue Service Unit Of Seluma Regency This study aimed to determine the factors that influence taxpayers compliance in paying motor vehicle tax (CLA ) in Unit Revenue Services of Province ( UPPP ) Seluma District. Type of this study is descriptive study. The population in this study is whousedtaxpayermotor vehicleisregisteredinthe Unit RevenueService of Province (UPPP) SelumaDistrict, witha sample of30taxpayer-wheeled motor vehicletwo (2) located atTaisMarket and registered inUnit RevenueService of Province of(UPPP) Seluma Districtin July2013.The data collected by usingquestionnaire. Data analyzed by using rating scale method. Taxpayer perceptions towards tax penalties showed a significant effect on tax compliance in carrying out its obligations to pay motor vehicle tax ( CLA ) , is seen from the position of the respondent's perception of the value of tax penalties perceptions of factors affecting tax compliance in paying taxes on motor vehicles in Unit Revenue Service of Province( UPPP ) Seluma District with the total score of 316 is in the interval 308-381 , agreed criteria.

scholarly journals PEMAKAIAN BAHAN BAKAR GAS MENJADI ALTERNATIF BAGI KENDARAAN BERMOTOR BERBAHAN BAKAR PREMIUM

2012 ◽  
Vol 17 (1) ◽  
pp. 18
Author(s):  
Indartono Indartono
Keyword(s):  
Energy Efficiency ◽  
Alternative Fuels ◽  
Motor Vehicle ◽  
Alternative Fuel ◽  
Fuel Oil ◽  
Motor Vehicles ◽  
Exhaust Gas ◽  
Fuel Gas ◽  
Potential Source ◽  
Selection Of

Indartono, in paper use of alternative fuel gas for a motor vehicle fuel oil explain that in many ways energy efficiency can also be more than just preservation. Energy efficiency is an attempt to reduce the use of petroleum materials and the selection of alternative fuels. Improved energy efficiency is also an environmental demands, because it can reduce air pollution, acid rain control the incidence and protect the earth from global warming, which may occur due to buildup of carbon dioxide in the atmosphere. One of the alternative fuel is CNG. In motor vehicles, CNG usage advantages include lower price, the exhaust gas is cleaner burning results and the potential source is still very large. Keywords: energy efficiency, fuel, CNG

scholarly journals Analysis of alternative motor-vehicle fuels

2021 ◽  
Vol 2094 (5) ◽  
pp. 052005
Author(s):  
M A Kovaleva ◽  
V G Shram ◽  
T N Vinichenko ◽  
E G Kravtsova ◽  
D G Slashchinin ◽  
...  
Keyword(s):  
Natural Gas ◽  
Alternative Fuels ◽  
Motor Vehicle ◽  
Oil Refining ◽  
Engine Fuel ◽  
Liquefied Petroleum Gas ◽  
Compressed Natural Gas ◽  
Gas Engine ◽  
Advantages And Disadvantages ◽  
Market Expansion

Abstract In this paper, the analysis of alternative fuels is carried out: electricity, hydrogen, biofuels (bioethanol, biodiesel, biogas), solar energy, compressed air, gas engine fuel (compressed natural gas, liquefied petroleum gas, liquefied natural gas). The advantages and disadvantages of their use are indicated according to the criteria of environmental safety, cost, and infrastructure development. It is revealed that at the moment, gas-engine fuel, in particular liquefied petroleum gas and compressed natural gas, is most suitable for the transfer of the fleet. The economic and environmental effect of the market expansion is associated with the high environmental friendliness of this type of fuel, low price, large natural reserves, the development of the petrochemical industry of the country, the reduction of financial costs for the repair and reconstruction of physically and morally outdated oil refining and liquid fuel production enterprises, promising technical and technological solutions to transport problems.

scholarly journals Use of Gasoline, LPG and LPG-HHO Blend in SI Engine: A Comparative Performance for Emission Control and Sustainable Environment

Processes ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 74 ◽  
Author(s):  
Muhammad Usman ◽  
Muhammad Farooq ◽  
Muhammad Naqvi ◽  
Muhammad Wajid Saleem ◽  
Jafar Hussain ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Alternative Fuels ◽  
Environmental Pollutants ◽  
Spark Ignition Engine ◽  
Specific Fuel Consumption ◽  
Brake Specific Fuel Consumption ◽  
Liquefied Petroleum Gas ◽  
Comparative Performance ◽  
Performance And Emission ◽  
Brake Power

The rising global warming concerns and explosive degradation of the environment requires the mainstream utilization of alternative fuels, such as hydroxy gas (HHO) which presents itself as a viable substitute for extracting the benefits of hydrogen. Therefore, an experimental study of the performance and emission characteristics of alternative fuels in contrast to conventional gasoline was undertaken. For experimentation, a spark ignition engine was run on a multitude of fuels comprising of gasoline, Liquefied petroleum gas (LPG) and hybrid blend of HHO with LPG. The engine was operated at 60% open throttle with engine speed ranging from 1600 rpm to 3400 rpm. Simultaneously, the corresponding performance parameters including brake specific fuel consumption, brake power and brake thermal efficiency were investigated. Emission levels of CO, CO2, HC and NOx were quantified in the specified speed range. To check the suitability of the acquired experimental data, it was subjected to a Weibull distribution fit. Enhanced performance efficiency and reduced emissions were observed with the combustion of the hybrid mixture of LPG with HHO in comparison to LPG: on average, brake power increased by 7% while the brake specific fuel consumption reduced by 15%. On the other hand, emissions relative to LPG decreased by 21%, 9% and 21.8% in cases of CO, CO2, and unburned hydrocarbons respectively. Incorporating alternative fuels would not only imply reduced dependency on conventional fuels but would also contribute to their sustainability for future generations. Simultaneously, the decrease in harmful environmental pollutants would help to mitigate and combat the threats of climate change.

scholarly journals Methods and simulation to reduce fuel consumption in driving cycles for category N1 motor vehicles

2021 ◽  
Author(s):  
Alexander Kolin ◽  
S. E. Silantyev ◽  
Petr Rogov ◽  
M. E. Gnenik
Keyword(s):  
Fuel Consumption ◽  
Impact Analysis ◽  
Motor Vehicle ◽  
Commercial Vehicle ◽  
Road Traffic ◽  
Motor Vehicles ◽  
Design Parameters ◽  
Driving Cycles ◽  
Light Commercial Vehicle ◽  
The Impact

The paper presents the results of using the simulation model estimating the fuel consumption of a light commercial vehicle in road traffic cycles; virtual tests are performed. The impact analysis of the motor vehicle design parameters on fuel consumption in NEDC and WLTC cycles is conducted. Numerical values of average fuel consumption are obtained for variation of the main parameters of the structure in NEDC and WLTC cycles. Energy distribution is shown during the motion of category N1 light commercial vehicle.

scholarly journals What a Difference a State Makes: California’s Authority to Regulate Motor Vehicle Emissions Under the Clean Air Act and the Future of State Autonomy

2021 ◽  
pp. 169
Author(s):  
Chiara Pappalardo
Keyword(s):  
Motor Vehicle ◽  
National Laboratory ◽  
Clean Air Act ◽  
Motor Vehicles ◽  
Mobile Sources ◽  
Transportation Sector ◽  
Clean Air ◽  
Local Air Pollution ◽  
Earth’S Climate ◽  
Cooperative Federalism

Air pollutants from motor vehicles constitute one of the leading sources of local and global air degradation with serious consequences for human health and the overall stability of Earth’s climate. Under the Clean Air Act (“CAA”), for over fifty years, the state of California has served as a national “laboratory” for the testing of technological solutions and regulatory approaches to improve air quality. On September 19, 2019, the Trump Administration revoked California’s authority to set more stringent pollution emission standards. The revocation of California’s authority frustrates ambitious initiatives undertaken in California and in other states to reduce local air pollution and mitigate the effects of climate change from mobile sources. This Article argues that the reasons offered by the Administration to justify its rollback of California’s authority are not persuasive. They do not find support in the history and longstanding interpretation of the CAA, in the Environmental Protection Agency’s implementation practice, or in the regulated industry, and, coupled with halting the rise in federal fuel economy standards, constitute unsound policy at a crucial moment for greenhouse gas emissions mitigation. In addition, this Article advances the idea that instead of aiming to suppress California’s experimentation with zero emissions vehicles, current and future Administrations should embrace new ways to cooperate with California and a growing number of states that have begun thinking creatively about reforming the transportation sector. By building on a flexible and multilevel model of governance, grounded on forms of cooperative federalism that leverage state innovation and regulatory expertise, the federal government together with the states will ensure a more competitive future for America.

scholarly journals Tyre-Road friction Coefficient: Estimation Adaptive System

2020 ◽  
Vol 98 (2) ◽  
pp. 50-59
Author(s):  
A.A. Kashkanov ◽  
◽  
A.P. Rotshtein ◽  
V.Yu. Kucheruk ◽  
V.A. Kashkanov ◽  
...  
Keyword(s):  
Friction Coefficient ◽  
Motor Vehicle ◽  
Adaptive System ◽  
Field Tests ◽  
Motor Vehicles ◽  
Mathematical Methods ◽  
Factors Affecting ◽  
Emergency Braking ◽  
Coefficient Estimation ◽  
Potential Applicability

This paper offers an upgraded method for estimating the magnitude of friction between tyres of a motor vehicle and a road surface while investigating road accidents. The above-mentioned method is based on the resultant data of tyre-and-road interworking field tests in case of emergency braking. Such estimation of the magnitude of friction is to be carried out with a focus on the factors affecting the friction processes in the tyreand-road contact. The most important factors, which are included in the synthesized adaptive system used for friction coefficient estimation, have been defined based on the theoretical analysis of the data of deceleration and braking length of motor vehicles. The study of the existing expert methods used for estimating the level of tyre-and-road engagement and the effect of such level on the motional parameters of a motor vehicle has demonstrated the need for upgrading of the existing approaches. Unlike the existing practices, the friction coefficient estimation adaptive system offered by the authors hereof is a self-trainable system. Such system reduces any simulation uncertainty and the probability of occurrence of Type 1 and Type 2 errors. Such result is achieved owing to the fact that the system takes into account the upgraded design of the present-day brake systems and tyres, as well as the speed of motor vehicles and load of their wheels; the system is also efficient because it makes use of the up-to-date mathematical methods which are able to process raw (initial) data under conditions of stochastic and fuzzy uncertainty. The approach offered hereby has demonstrated its efficiency for motor vehicles belonging to categories М1 and N1 and has proven its potential applicability for other categories of motor vehicles.

Investigating Head-On Crash Severity Involving Commercial Motor Vehicles in Kentucky

2021 ◽  
pp. 036119812110108
Author(s):  
James Smith ◽  
Mehdi Hosseinpour ◽  
Ryan Mains ◽  
Nathanael Hummel ◽  
Kirolos Haleem
Keyword(s):  
Injury Severity ◽  
Motor Vehicle ◽  
Preliminary Investigation ◽  
Motor Vehicles ◽  
Severe Injuries ◽  
Factors Affecting ◽  
Crash Data ◽  
Centerline Rumble Strips ◽  
Crash Injuries ◽  
Drug Impairment

This study examines various features affecting the severity associated with commercial motor vehicle (CMV, i.e., large truck and bus) head-on collisions on Kentucky highways. Recent five-year (2015–2019) crash data and variables rarely explored before (e.g., presence of centerline rumble strips, type of passing zone, and terrain type) were collected and prepared using Google Maps. A total of 378 CMV-related head-on collisions were analyzed. The generalized ordered probit (GOP) model was employed to identify the significant factors affecting the severity level resulting from CMV head-on collisions. The model allows the coefficients to vary across the injury severity categories for reliable parameter estimations. From the preliminary investigation, rolling terrains had the highest share of severe CMV head-on crashes (62% and 71% for multilane and two-lane roadways, respectively). The presence of centerline rumble strips could reduce severe crash outcomes along multilane and two-lane facilities. The GOP model identified various significant predictors of minor and severe injuries from CMV head-on crashes. Occupants wearing seatbelt were 39.3% less likely to sustain severe head-on crash injuries. From the roadway characteristics, presence of median cable and concrete barriers could significantly reduce the probability of severe head-on crash injuries, with median cables being more effective. With regard to the driver characteristics, drug impairment and speeding increased the risk of sustaining fatal/serious injuries by 39.5% and 26.4%, respectively. Necessary safety recommendations are proposed to reduce the severity of CMV head-on-related collisions. One example is installing median cable barriers along roadway stretches with a history of head-on CMV-related crashes.

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