to examine hydraulics of lnapls in soil, the retention curves of diesel fuel and water were both determined by hanging column method. the soil retention parameters were obtained based on van genuchten, brooks-corey and campbell’s models. in addition, the soil hydraulic conductivity for both fluids were predicted based on mualem- brooks-corey, burdine- brooks-corey, mualem-van genuchten and camp...

to simulate a new economical architecture for pem fuel cell and investigate the effectiveness of the introduced structure on the performance, computational fluid dynamics (cfd) code is used to solve the equations for a single domain of the cell namely: the flow field, the mass conservation, the energy conservation, the species transport, and the electric/ionic fields under the assumptions of st...

a newly developed heavy duty diesel engine in dual fuel mode of operation has been studied in detail. the main fuel would be natural gas and diesel oil as pilot injection. the importance and effects of mixture preparation and formation through ports, valves and in cylinder flow field with different swirl ratio and tumble on diesel combustion phenomena is an accepted feature which has been studi...

The core objective of this paper is to analyse the economic, ecological and energetic perspectives of biofuels second generation compared to biofuels of first generation and fossil fuels in a dynamic framework up to 2050. The most important result of this analysis is that in Europe second generation biofuels might become economically competitive between 2020 and 2030. Yet, this will only be ach...

This paper introduces the technique that can be used to produce liquid fuel in high quantity, and is called co-pyrolysis technique. Co-pyrolysis a process which involves two or more materials as feedstock. To best of my knowledge, there have not been any research about Jatropha seed cake with tyre waste. The feedstock were characterization carried out based on proximate ultimate analysis. waste...

The world's expanding human population and rising standard of living result in a rise energy consumption. Since fossil fuel reserves are mostly exploited to fulfil the demand, this makes it more difficult get energy. Due non-renewable nature resources possibility supply issues occurring as globalization, access becomes challenging at point. However, switching alternative environmentally benefic...

Automotive Systems A u to m o tive Sstem s Th e fuel pressure control system (FPCS) was developed to comply with increasingly strict fuel-effi ciency and emissions regulations by improving fuel economy and reducing emissions. It controls the discharge fl ow rate of the fuel pump and fuel injection pressure in accordance with engine operating conditions. Past fuel supply systems have operated th...

in this study a pseudo comprehensive carbon footprint model for fossil fuel power plants is presented. parameters which their effects are considered in this study include: plant type, fuel type, fuel transmission type, internal consumption of the plant, degradation, site ambient condition, transmission and distribution losses. investigating internal consumption, degradation and site ambient con...

In order to clamp down on the illegal use of fishing boat fuel A (FBFA) and to reduce exhaust emissions in Taiwan, the residue from a desulfurization unit (RDS) and pyrolysis fuel oil (PFO) were added into FBFA with the ratio of 0.5% to form two new blended fuels (RDS0.5 and PFO0.5). The appearances of fuels from dark to light are RDS0.5, PFO0.5, and FBFA. The two new fuels have higher viscosit...