Selection of coal, Biology

Assignment Help:

Better coal should have following characteristics

(1)   It should have high calorific value.

(2)   It should have low moisture content.

(3)   It should have low ash  content

(4)   It should have high calorific intensity. (Calorific intensity-maximum temperature attainable on complete combustion of coal with theoretical amount of air.)

(5)   Size of coal should be uniform.

(6)   Coking quality should be high (coal on heating gives a coke which is porous, hard, strong. And  suitable for metallurgical needs, then the coal is known as caking coal)

(7)   It should have very low content of sulphur and phosphorous.        

 

 


Related Discussions:- Selection of coal

Explain why this drug would eventualy kill a person, Dinitrophenol, DNP, wa...

Dinitrophenol, DNP, was prescribed in low doses in the 1940's to help obese patients lose weight. It's use for this purpose was discontinued when several users died. DNP makes the

Meiosis, Why is it necessary to have the second division in meiosis even th...

Why is it necessary to have the second division in meiosis even though cells have already been reduced to haploid number after the first division?

Ancestral unicellular organism, Ancestral Unicellular Organism So far ...

Ancestral Unicellular Organism So far in this unit we have considered the characteristic of body designs that are shared by various animals and the different body plans that d

Symptoms of dyspepsia, Q. Symptoms of dyspepsia? The life style modific...

Q. Symptoms of dyspepsia? The life style modification in terms of work schedules, eating behaviour like consuming meals when extremely tired, quitting alcohol and smoking would

Epithelial tissue, conclusion for epithelial tissue when finish experiment?...

conclusion for epithelial tissue when finish experiment?

Synthesis of sucrose, Many of the glyceraldehyde 3-phosphate produced by th...

Many of the glyceraldehyde 3-phosphate produced by the Calvin cycle in chloroplasts is exported to the cytosol and used to produce the disaccharide, sucrose. 1 st the   glyceralde

Malthusian theory of population growth, In 1798, British economist and demo...

In 1798, British economist and demographer Thomas Robert Malthus, published his' essay on population' in which he stated that: 1.      Population increases in a geometric rat

Natural selection would lead to the spread of favorable, If jean-Baptiste d...

If jean-Baptiste de Lamarck was correct, than a. Natural selection would lead to the spread of favorable traits within a population b. Finches that stretched their beaks to access

Explain ebb or shock period - dietary management for burn, Explain the Ebb ...

Explain the Ebb or Shock Period - Dietary Management for Burns? During the initial bums after injury, the focus is on counteracting the stress induced neurohormonal and physiol

Explain the radiographic failure of root canal treatment, Explain the Radio...

Explain the Radiographic Failure of Root Canal Treatment It is the persistence or development of pathosis radiographically. Specifically, this is a radiolucent lesion that has

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd