Mindblown: a blog about philosophy.

The advantages of liquid fuels over solid fuels are as follows: The disadvantages of liquid fuels over solid fuels are as follows:

The main source of liquid fuels is petroleum which is obtained from drilled wells under the Earth’s crust. Petroleum has originated probably from organic matter such as fish and plant either by bacterial action or distillation under pressure and heat. It consists of a mixture of gases, liquids, and solid hydrocarbons with small amounts of…

The grading of coal is done on the following basis: For example, a coal grade written as 5–10 cm, 20,000 – A8-F24 – F1.6 indicates that the coal has Size: 5–10 cm C.V.: 20,000 kJ/kg Ash: 8–10% Ash softening temperature: 2400–2500°F Sulphur content: 1.4–1.6%

Rank is an inherent property of the fuel, depending upon its relative progression in the classification process. The ranking of coal is based on the fixed carbon and heating value of the mineral matter free analysis. The ASME (American Society of Mechanical Engineers) and ASTM (American Society of Testing and Materials) have accepted the following…

A good coal should have the following properties:

The calorific value of solid fuels is given in Table 1.2.   Table 1.2 Calorific value of solid fuels

Fuels may be classified as follows:   Table 1.1 Classification of fuels  

A fuel may be defined as a substance, which on burning with oxygen produces a large amount of heat. A fuel is mainly composed of carbon and hydrogen. The energy produced by burning of fuel in the form of heat is known as chemical energy.