Towards Integrated Powertrain Control for a Mild-Hybrid Urban Vehicle with a Downsized Turbo-Charged CNG Engine — Compressed natural gas (CNG) is considered as one of the most promising alternative fuels for transportation due to its ability to reduce greenhouse gas emissions (CO2, in particular) and its abundance. An earlier study from IFP has shown that CNG has a considerable potential when u...

Gas fuel direct injection (DI) technology can improve the control precision of in-cylinder mixing and combustion process effectively avoid volumetric efficiency reduction in a compressed natural gas (CNG) engine, which has been tendency. However, compared with port (PFI) method, former’s path duration are shortened greatly, often leads to poor uniformity. What is worse, performance would be ser...

Experimental investigations carried out on a single-cylinder four-stroke motorcycle spark ignition engine operating on gasoline and natural gas are reported in the present paper when compressed natural gas (CNG) and hydrogen were used as fuel. The investigations were carried out by mixing a small percentage of hydrogen (5 to 30%) with CNG and supplied to the engine. Hydrogen and CNG were mixed ...

The reduction of CO2 and other greenhouse gas emissions is an important driving force for the development of modern engines. Especially in the transport sector, the use of alternative fuels like methane, the main component of compressed natural gas (CNG), is an applied measure to achieve this goal. This work describes the development of an optical measurement system for accurate quantification ...

The organic Rankine cycle (ORC) can be used to recover the waste heat from a stationary compressed natural gas (CNG) engine. However, the exhaust energy rate varies with engine load, which can influence the operating performance of the ORC system, therefore, it is necessary to study the running state of the ORC system. In this paper, first, the numerical simulation model of the ORC system is bu...

Towards a Stronger Simulation Support for Engine Control Design: a Methodological Point of View — Thanks to a specific crank angle degree modelling approach and to an accurate simulator calibration, it is nowadays possible to build a complete simulator which allows the control engineer to access to numerous engine variables, especially non measurable values, and to perform tests over a wide ran...

<pre><em>The fundamental problem in meeting fuel consumption for the operation of diesel engines is terms costs and ensuring availability fuel. So that idea using alternative fuels other than arises. And recommendation gas (compressed natural gas) several reasons including cheaper prices Indonesia has abundant reserves. Because properties CNG oil are different, it necessary to modif...