This paper formulates a mathematical model for the Green Vehicle Routing Problem (GVRP), incorporating bi-fuel (natural gas and gasoline) pickup trucks in a mixed vehicle fleet. The objective is to minimize overall costs relating to service (earliness and tardiness), transportation (fixed, variable and fuel), and carbon emissions. To reflect a real-world situation, the study considers: (1) a co...

Nowadays, automobiles and motorcycles manufacturer produced more powerful efficient engines. This engine usually has high compression pressure to achieve performance economic gasoline consumption. Unfortunately, only few people known that requires octane number gasoline. The aim of this research were find out the differences power & torsion output one cylinder combustion which given several...

Bioethanol is among the most promising of biofuels because it has an energy content similar to gasoline while generating lower pollutant emissions than gasoline. But, in order to be used as an automotive fuel mixed with gasoline, ethanol must have less than 0.5 wt % of water. To achieve required ethanol purity, in light of the fact that the ethanol water mixture forms an azeotrope, unconvention...

Brazil is currently confronted with the perspective of significant increase on ethanol fuel demand. This forecast is based on three main points: i) the success of flexible-fuel vehicles that can run on any proportion of gasoline (E20-E25 blend) and hydrous ethanol (E100), together with the mandatory E25 blend throughout the country which allowed ethanol fuel consumption to achieve more than 50%...

Converting light-duty vehicles from full gasoline power to electric power, by using either hybrid electric vehicles or fully electric power vehicles, is likely to increase demand for water resources. In the United States in 2005, drivers of 234 million cars, lighttrucks, and SUVs drove approximately 2.7 trillion miles and consumed over 380 million gallons of gasoline per day. We compare figures...

The major aim of the research is to investigate ability biogas as an alternative fuel for gasoline-powered Spark Ignition (SI) engine. In this study, biogas/gasoline mixtures containing different ratios biogas, gasoline, and were tested in SI engine with increased compression ratio at loads constant speed. According comparison utilization generally decreased Brake Thermal Efficiency (BTE), whil...

Abstract Reducing the level of pollutant emissions internal combustion engines requires adaptation solutions that improve process in cylinder but those may increase their constructive complexity. For this reason, use hydrogen is an effective solution, both for replacing fossil fuels and reducing concentration emissions. The as additional fuel automotive spark ignition offers possibility obtaini...

The consumption of bioethanol as biofule may reduce greenhouse gases, gasoline imports. Also it can be replaced with lead or MTBE (Methyl tert-butyl ether) that are air and underground water pollutants, respectively. Plants are the best choice for meeting the projected bioethanol demands. For this scope, a comparative analysis of the technological options using different feedstocks should be pe...

This life cycle assessment (LCA) evaluates and quantifies the environmental impacts of the production of hydrogen and transportation fuels from the fast pyrolysis and upgrading of corn stover. Input data for this analysis come from Aspen Plus modeling, a GREET model database and a U.S Life Cycle Inventory Database. SimaPro 7.3 software is employed to estimate the environmental impacts. The resu...

The long trends of fuel price increase along with increasing transit ridership over the past few decades has been established by past transit research. However, in 2008, there has been a drastic drop in the prices of oil, which has had significant effects on consumption patterns of gasoline. The objectives of this paper are two folds; firstly to ascertain the nature of the gasoline-transit ride...