Water Jet cutting services make use of a super high pressure stream of water that carries an abrasive grit. This abrasive mixes with the water through a venturi effect in what is commonly called the ?focusing tube? just prior to cutting. This mixture of water and abrasive grit exit the focusing tube at speeds of approximately mach 2.5. Cutting pressures range between 45,000 to 60,000 psi for standard cutting models. For brittle, fragile, or delicate materials, piercing pressures range between 15,000 to 20,000 psi, and resume the higher cutting ....etc

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Camelina sativa is an oilseed crop and it might be used as fuel in aircrafts in the near future. A study conducted at Michigan Technological University claimed that Camelina has shown to be one of the more promising alternatives to petroleum jet fuel. They studied the whole process i.e. from planting to airplaneâ„¢s tailpipe. David Shonnard, Robbins Chair Professor of Chemical Engineering, studied the carbon dioxide emissions of jet fuel made from Camelina oil ....etc

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Abstract
Homogeneous charge compression ignition (HCCI) is a form of internal combustion in which well-mixed fuel and oxidizer (typically air) are compressed to the point of auto-ignition. Homogeneous charge compression ignition (HCCI) engines have
the potential for high efficiencies and low pollutant emissions.By comparison with spark ignition (SI) engines, for example,HCCI engines can yield a 15-20% increase in fuel economy while emitting lower levels of oxides of nitrogen (NOx).HCCI engines can also achieve thermal eff ....etc

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am in final year mechanical engg. i need seminar report on pulse jet e where can i get ....etc

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ME Engines “ the New Generation of Diesel Engines

INTRODUCTION

The introduction of the electronically controlled camshaft-less low speed diesel engines, which is now gaining momentum, is a milestone in diesel technology that deserves a place in history like Rudolf Dieselâ„¢s first engine in Augsburg, the 1912 motor vessel Selandia, the introduction of turbocharging on two-stroke diesels in 1954, and the first SCR (Selective Catalytic NOx Reduction) systems on ships in 1989. This paper will outline how MA ....etc

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PRESENTED BY:
SACHIN BHAT
SHARATH KAMATH


PULSE JET ENGINE
What is Pulse Jet ?
• Simple form of internal combustion engine
– Combustion occurs in pulses
» Termed deflagrations
» Characterized by sudden rise in temperature and pressure followed by a rapid subsonic expansion
– Propulsive effort is a rearward reaction to hot gases
HISTORY
• Patented in 1906 by Russian engineer V.V Karavodin
• In the 1933 German engineer Paul Schmidt re-discovered the princi ....etc

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Pulse Shape Improvement in Core-Type High-Voltage Pulse Transformers With Auxiliary Windings
High-voltage pulsed power technologies are rapidly emerging as a key to efficient and flexible use of electrical power for many industrial applications. One of the most important elements in high-voltage pulse-generating circuit technology is the transformer, generallyused to further increase the pulse output voltage level. However, its nonideal behavior has significant influence on the output pulse shape.The most attractive winding configurati ....etc

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1: introduction,defination,type,operating principle,design,manufacture,uses,result and discussion,futuer research.

i must sure u will give the proper information
....etc

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Abresive Jet Machine



It is a newly developed technology used in industrial countries. This is adopted for machining operations.


Features

In this machine a high velocity of abrasive stream is used for machining. The abrasive particle have a vibration of about 50 hertz is mixed with high pressure gas or air in the mixing chamber. Then the stream is emerges through a small nozzle mounted on a fixture to the work piece.
Variable in abrasive jet machine
The variables that influence the rate of metal removal and accuracy of machining ....etc

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when i was searching for my seminar topic i was attracted towards this site homepage and decided to make use of this site only.i want some help about above given topic.i will be highly obliged to u if u help me.please send me some matter about this topic and seminar report.please help me in making me this seminar an immpresive.. ....etc

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