Le biodiesel est le meilleur remplacement du carburant diesel pour les zones agricoles rurales à moindre coût. Mais la mauvaise combustion du biodiesel dans le cylindre du moteur, due à une caractérisation inexacte de la pulvérisation, est la cause du faible niveau de performance du moteur. Il est essentiel de modifier la caractérisation du spray lorsque nous utilisons du biodiesel à la place du diesel conventionnel. Modifier la caractérisation du spray n'est pas une tâche facile et appropriée, une recherche de haut niveau est nécessaire pour la même chose, mais en changeant...

Bio-Diesel ist der beste und kostengünstigste Ersatz für Dieselkraftstoff in ländlichen Gebieten. Aber die unsachgemäße Verbrennung von Biodiesel im Motorzylinder aufgrund einer ungenauen Sprühcharakterisierung ist die Ursache für das niedrige Leistungsniveau des Motors. Bei der Verwendung von Biodiesel anstelle von herkömmlichem Dieselkraftstoff muss die Sprühcharakterisierung unbedingt geändert werden. Die Änderung der Sprühcharakteristik ist keine einfache und geeignete Aufgabe, für die ein hohes Maß an Forschung erforderlich ist, aber durch einfache Änderung des...

Window functions have been successfully used in various areas such as filtering, beam forming and multirate signal processing. Due to available closed form expressions, the role of windows is economical. One of the key applications is the design of FIR filters. These filters are used in decimators and interpolators which are the basic building blocks for any multirate system and filterbank. In present scenario, a system with an improved performance, better quality, little error is the prime requirement. With this objective FIR multirate filters are designed using window functions. These...

The bio-diesel is the best replacement of diesel fuel for rural agricultural areas at less cost. But the improper combustion of bio-diesel inside the engine cylinder due to inaccurate spray characterization is the cause of low performance level of engine. It is essential to change the spray characterization when we use bio-diesel in place of conventional diesel fuel. To modify the spray characterization is not an easy and suitable task high level research is required for the same but by simply changing the injector hole diameter we can obtain the optimum values of performance characteristics....

Recently, Multicarrier Modulation find wide application in many areas of communication Engineering like IEEE 802.11a/g, IEEE 802.16e,IEEE 802.20, DVD, DAB, ADSL and VDSL, etc. The orthogonal property provides optimum loading of the channel spectrum with effective suppression of Interferences parameters, i.e., ICI and ISI. The TMUX is the major component of MCM system. It works like a dual of Filter bank and can be efficiently realized using basic properties of Multirate signal processing. The CMFB is one of the computationally efficient techniques for the implementation of filter bank in NPR...

In the last few years, demand of petroleum based product is increasing day by day. With the depletion of fossil fuels, prices of crude oil are increasing day by day. Thus there is a great need to find an alternative which can fulfill the increasing demand and results in less fuel consumption and pollution. Now-a- day's biodiesel is making its place as a future fuel. Stating material such as so, rapeseed, corn, coconuts, jatropha, karanja, and even used cooking oil are used to create a fuel that is clean burning, and low in sulphur. Biodiesel can be used as a fuel alternative (B100) or as...

This study details on ANSYS Workbench gives analysis on aspects of discharge variation on Archimedean Screw Turbine which would help in producing results regarding effects of stresses on the turbine. By using ANSYS Workbench we can find out stresses distribution and deformation of flights in Screw Turbine easily. Generation of 3-D geometry and meshing of those profiles to evaluate performance of screw turbine based on number of flights could also be done in ANSYS Workbench. Simulation of working of Screw Turbine by using "Transient Structural Mode" in ANSYS Workbench is conducted for study of...

Le panneau du système d'analyse de la vapeur et de l'eau est utilisé dans l'industrie des centrales électriques pour vérifier la pureté de l'eau afin d'éviter toute perte due à l'eau. Chaque année, 50% des pannes de turbine sont dues à l'eau que nous utilisons. Il est donc nécessaire de contrôler l'eau à tout moment, mais il n'est pas possible de prélever un échantillon à chaque fois et de l'utiliser pour des tests de laboratoire. Le panneau du système d'analyse de la vapeur et de l'eau contient de nombreux dispositifs sophistiqués, il est donc nécessaire de maintenir la...