Results for "Fuel Technology" : Scipedia

Collection of open conferences in research transport

The Design, Fabrication, and Installation of a Quiet Compressor Station

Abstract

Stringent environmental constraints are usually associated with or applied to the siting and installation of new pipeline facilities. This has resulted in a significant portion of the design effort and ultimate cost of the facility to be dedicated to the mitigation of these environmental [...]

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Collection of open conferences in research transport

A Novel Technique for Monitoring Hydrate Safety Margin

Abstract

Great concerns with flow assurance issues have been raised by the oil and gas industry, while the industry is increasingly moving to deepwater reservoirs. Gas hydrate blockages are one of the most common risks for the long distance offshore gas and oil production transport pipelines. [...]

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Collection of open conferences in research transport

Effective Tools for Diagnosing Elusive Turbomachinery Dynamics Problems in the Field

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This paper describes and discusses techniques which can effectively diagnose dynamics problems in turbomachinery. A variety of elusive dynamics problems are identified which require definition, quantification, diagnosis, and monitoring. The state of the art in measurement and signal [...]

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Collection of closed conferences in transport research

Characteristics of Dutch EV drivers

Abstract

There has been little research towards the characteristics of Dutch electric vehicle (EV) drivers. This paper describes the result of focus groups and a survey with 286 respondents. Results indicate the current EV driver is predominantly a well-educated middle aged male with a [...]

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Collection of closed conferences in transport research

Clean energy systems as mainstream energy options

Abstract

Summary Solving the energy and climate challenges ahead will require introducing massive amounts of clean energy such as renewable energy (RE) sources, in particular, in urban areas as these dominate the energy use and emissions. Variable RE sources such as solar and wind are interesting [...]

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Collection of open articles in transport research

Temperature Augmented Visual Method for Initial Screening of Hydrate Inhibitors

Abstract

The formation of gas hydrates in oil & gas pipelines and drilling fluid flow lines is a major issue in the petroleum industry. Gas hydrate inhibitors are normally used to inhibit the formation of gas hydrates in the pipelines/flowlines. Initial screening of hydrate inhibitors and [...]

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Collection of open articles in transport research

Effect of capsule shape on hydrodynamic characteristics and optimal design of hydraulic capsule pipelines

Abstract

Hydraulic capsule pipelines (HCPs) are the third generation pipelines transporting hollow containers, known as capsules. These capsules are filled with material/cargo to be transported. The shape of these capsules has a significant effect on the hydrodynamic flow characteristics within [...]

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Collection of closed articles in transport research

Effectiveness of smart charging of electric vehicles under power limitations

Abstract

SUMMARY This article investigates charging strategies for plug-in hybrid electric vehicles (PHEV) as part of the energy system. The objective was to increase the combined all-electric mileage (total distance driven using only the traction batteries in each PHEV) when the total [...]

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Collection of closed articles in transport research

Implications for the energy transition

Abstract

A key issue in smart grid visions is the integration of the energy and mobility systems. Electric vehicles (EVs) can be charged with renewable photovoltaic (PV) solar power, and contribute to the integration of solar power in the electricity network via vehicle-to-grid systems. In [...]

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Collection of closed articles in transport research

An analysis of energy flow in a turbocharged diesel engine of a heavy truck and potentials of improving fuel economy and reducing exhaust emissions

Abstract

The impetus of the internal combustion engine developments is the reductions of the fuel consumptions and exhaust emissions. Thermal management is an efficient method to decrease the exhaust emissions and enhance fuel economy. In order to further optimize the thermal management of internal combustion engines, a detailed analysis of the energy flow in each component of internal combustion engines is indispensable. In this paper, the test bench of a heavy duty diesel engine was established to obtain the target parameters. The energy distributions in each component of the diesel engine, including compressor, intercooler, shaft power, turbine, coolant and exhaust, were calculated using tested parameters. The lubricating oil consumption was also taken into consideration. In addition, the potential influences of different turbochargers on the total thermal efficiency were analyzed. The results showed that the thermal efficiency of the diesel engine was more than 38% when the engine operated at 50%–100% engine load and 1000 rpm–1700 rpm conditions. The energy loss by coolant was more than 50% of the total fuel energy consumption in the low power output conditions. However, it was lower than 30% in high power output conditions, and the thermal loss was more than 150 kW around rated power conditions. The maximum proportion of the energy being consumed by turbine was ∼10% of the fuel energy; additionally, the exhaust energy distributions changed significantly after the turbine expansion. 1%–3% of the fuel energy was recycled by the turbocharger, then, flowed into the cylinders. The energy loss through the intercooler accounted for ∼6% of the fuel energy. Significant reductions of exhaust emissions and fuel consumptions can be achieved by optimizing the coolant and lubricating oil thermal conditions. Turbochargers presented a huge effect on exhaust temperature distributions at high power output conditions, and the total thermal efficiency changed significantly if all kinds of energy recovery approaches were applied.

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