Electrical Articles Archive
Advantages and disadvantages of LPG
The advantages of LPG are It is non-toxic, non- corrosive in nature. It burns cleanly and has high octane rating i.g. more than 100 RON (Research Octane Number). LPG engines have less knocking/ vibration. It does not
What are properties of LPG?
The properties of LPG are as follows It does not contain moisture or H2 S. So it is non-polluting in nature. The average calorific value is 29780 kcal/m3 It evaporates at normal temperature and pressure. So it
What is composition of LPG?
Liquefied petroleum gas (LPG) is obtained by Liquefaction of the uncondensed gases from the fractionating column during refining of crude petroleum oil. The thermal cracking of heavy petroleum oil. The condensed gases from refineries are cooled and
Properties of aviation petrol
Properties of aviation petrol are as follows : Flashpoint: 38 0C Auto-ignition temperature: 210 0C Freezing point: -40 0C Open air burning temperature: 287.50C Density at 150C : 0.807kg/L Calorific value :11,500 cal/g Boiling point: 40 to
What is aviation gasoline
Aviation petrol is straw coloured fuel based on either kerosene(known as Jet A) or naphtha (known as Jet B). In civilian turbine engine powered aeroplanes. Jet A is used as fuel whereas in extremely cold weather condition
Volatile matter
It is not constituent of coal but consists of a complex mixture of gaseous and liquid products due to thermal decomposition of coal substance. High volatile matter containing coal burns with a long flame, high smoke (pollutes
Useful heat value
The gradation of non-coking coal is based on useful heat value (UHV). The classifications are divided into seven grades from A-G. UHV is expressed in kcal/kg. UHV of grade –A non- coking coal is maximum (> 6200
What is bio-diesel?
Biodiesel is non-petroleum diesel fuel consisting of monoalkyl (methyl, ethyl or propels) esters of long-chain alkyl esters, made by trans – etherification of vegetable oil or animal fat (tallow), which can be used (alone or blended with
Difference between proximate analysis and ultimate analysis
The distinction between proximate and ultimate analysis of coal are as follows : Proximate analysis Ultimate analysis Proximate analysis of coal is an assay of the quantity of the coal. The ultimate analysis is the element analysis
How is ultimate analysis of coal carried out in the laboratory?
The ultimate analysis includes determination of carbon, sulfur, nitrogen, ash and oxygen. It is the elemental analysis of coal. It is used for calculation of calorific values. Procedure Carbon and hydrogen Generally, both the elements are estimated