Posts by Technical Editor

Knocking tendency of diesel in a diesel engine is expressed by its cetane number. The compression so it produces less knocking. Hence its cetane number is taken as 100. On…

The air-fuel mixture burns moderately and uniforms at a rate in the cylinder of internal combustion (IC) engine. The metallic or rattling sound in the cylinder of internal combustion engine…

The ratio of the volume of gas at the end of the suction stroke to the volume of gas at the end of the compression stroke is known as the…

In a diesel engine, if the combustion rate of air diesel mixture initiated due to compression of air becomes very slow then a large amount of fuel collected in the…

The petrol engine is spark engine. The working cycle has four strokes as  Intake/suction stroke: A fuel (petrol) vapours and the mixture is drawn in the cylinder of the IC…

The differences between cetane number and octane number are as follows : Cetane number Octane number Cetane number of a given diesel under test is defined as the percentage by…

The difference between solid and liquid propellants are as follows Solid propellants Liquid propellants Solid propellants have low specific impulse Liquid propellants have high specific impulse Storage, handling and transport…

Crude petroleum oil is a mixture of various solid, liquid and gaseous hydrocarbons.thesehydrocarbon are valuable and have unique uses. Each fraction differs in molecular weight and boiling point range. So,…

Rocket propellants are high oxygen-containing fuel or mixture of fuel and oxidant which burn in define and controlled manner to produce a large volume of gas. In other words, the…