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

Define dietary management of sepsis with or without mods, Define Dietary Ma...

Define Dietary Management of Sepsis with or without MODS? Before we begin with the dietary management of patients suffering from sepsis with or without MODS let us read a case

What are some examples of interspecific competition, Q. What are some examp...

Q. What are some examples of interspecific competition? Instance of interspecific competition are the dispute among worms, vultures, flies and microorganisms for carrion and th

What do you mean by st hystersis, Q. What do you mean by ST Hystersis? ...

Q. What do you mean by ST Hystersis? Ans. The rate of recovery of ST depression has been recognized as a measure of ischaemia severity for many years. When comparing the m

Biodiesal, Diesel-like liquid obtained from materials of biological origin ...

Diesel-like liquid obtained from materials of biological origin is called biodiesel. Biodiesel can be obtained (i) either from lipids accumulated plants and algae or (ii) from

What are the ploidies of the new cells, In which meiotic division does the ...

In which meiotic division does the separation of identical chromatids occur? After the end of this process what are the ploidies of the new cells? The separation of identical c

Actions of gastrointestinal hormones, Actions of Gastrointestinal hormones ...

Actions of Gastrointestinal hormones Secretin is released under acidic conditions (low pH); digested fat or bile initiates production of pancreatic juice low in enzymes but ri

Determine how many family full-time family doctors, 1.  In the town of Jasp...

1.  In the town of Jasper, CA, there is currently one full-time family doctor. If the town's population grows at a steady rate of 14% per year, how many family full-time family doc

Dominance - synthetic characters, Dominance - Synthetic Characters It ...

Dominance - Synthetic Characters It is a characteristic of vegetation which expresses the predominating influences of one or more species in a stand so that the population of

Kingdom protista, what is the taxonomy of phylum sporoza?

what is the taxonomy of phylum sporoza?

Explain direct microscopic count - measurement of microbes, Explain Direct ...

Explain Direct Microscopic Count - Measurement of Microbes? The most obvious way to determine microbial number is through direct counting under a microscope. In this method, a

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