Internal combustion engines

life of combustion engines the goal has been to make them more efficient. Higher efficiency lead to increased engine performance and power output, and a reduction in fuel consumption. The Weber (We) number, shown in Equation (1), relates a fluid’s inertial forces to its surface tension forces making it useful in analyzing the atomization of fuel in a combustion engine. We=Dynamic PressureSurface Tension Pressure=⍴U2(/D)             (1) The three main things that are required for combustion are; fuel

Air Breathing Engines Author: Mohsin Rehman Abstract: This paper mentions the history and early attempts at propulsion and the basic principle and theory of propulsion. Different types of air breathing engines like turbojet turbofan ramjet scramjet etc. their basic working principle along with their different working parts and the air planes on which these engines successfully worked are discussed down the path. Progresses made on historical basis, future planning for the betterment of

Since the development of the steam engine people had been interested in creating self-powered vehicles, this manifested during the industrial revolution as the train. However, as time went on people became interested in creating a vehicle that wasn’t confined to tracks. The earliest attempts were moderately successful but served little practical purpose. Automobiles first began to truly spread with the invention of the electric motor which created cheaper, more powerful, and safer automobiles. Still

Throughout the last 200 years, there have been a plethora of inventions such as the combustion engine. Other such inventions include the steam engine, typically driven by coal, and propellants used to spray chemicals. The Industrial Revolution left an impact on the world far greater than just inventions and set forth a world of change. Although the Industrial Revolution brought many great devices in to the world, it also could have caused the accelerated climate change and warming that we saw

However the anti-knocking properties of diesel is measured by its cetane number. The cetane number is the measurement of the anti knocking and the combustion quality of diesel. It is the equivalent of octane number for gasoline. The average value of cetane number for a diesel fuel ranges from 42 to 45 but for premium diesel cetane number can be up to 60. Another important property of fuels is the calorific

the engines of petrol cars and the motor on electric cars, it is clearly noticeable that the force behind the movement of the ordinary gas powered cars is the internal combustion engine. It is a complex conglomerate design that combines burning gasoline into a compressed chamber, producing heat that forces the mechanicals to move the wheels, in between using crankshafts in the engine and gears in the transmission. Otto cycle is the most common process happening inside the internal combustion engine

turbochargers are known to increase engine efficiency and power, whereas advanced suspension and braking tend to drastically upgrade handling and thus safety. A carefully designed exhaust system can

Diesel Engines Work? The basic difference between a diesel engine and a gasoline engine is that in a diesel engine, the fuel is sprayed into the combustion chambers through fuel injector nozzles just when the air in each chamber has been placed under such great pressure that it’s hot enough to ignite the fuel spontaneously. Following is a step-by-step view of what happens when you start up a diesel-powered vehicle. 1. You turn the key in the ignition. Then you wait until the engine builds

Although the internal combustion engine vehicle is the most popular vehicle type in the world it has serious problem relating to its exhaust emissions and the drown back of energy resources and high demand of petrol and diesel etc. the motor industry is trying to solve these kind of problem and developed many different kind of vehicle which use alternative energy, compressed natural gas, and solar energy, and electricity etc. The hybrid vehicle, which combines of the internal combustion engine and the

In order for an internal combustion engine to operate correctly, a mixture of fuel and air needs to enter into the combustion chamber, pressurised and then ignited by a spark ignition which then drives the piston to rotate. The way that the fuel is introduced into the combustion chamber has evolved over the decades. Before electronic fuel injection, carburettors were the primary method of mixing air and fuel. Carburettors work on the Bernoulli’s principle: the faster the air moves, the lower its