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

Botany, tell me best topic related to botany

tell me best topic related to botany

Explain what is meant by ovulation, a) Explain what is meant by ovulation. ...

a) Explain what is meant by ovulation. b)  How often does it happen in humans?   (a) Ovulation is the release of an ovum from a mature follicle in the ovary.

Carbon dioxide for photosynthesis, Aim: To prove that Carbon dioxide is ess...

Aim: To prove that Carbon dioxide is essential for photosynthesis. Apparatus: A potted healthy plant with long and narrow leaves, a wide mouthed glass bottle, split cork. Chemicals

Products that can be recycled, It requires the existence of a reliable mark...

It requires the existence of a reliable market for the recovered materials. Although the recovery of certain materials such as aluminium cans large plastic bottles can be profitabl

Describe dextran , Dextran is a glucose polymer where the glucose re...

Dextran is a glucose polymer where the glucose residues are mainly related by α1-6 bonds. Moreover, a few branches also happen. These are classically formed by α1-2, α1-3 or α1-4 b

What is facial prosthesis, Q. What is facial prosthesis? Dental implant...

Q. What is facial prosthesis? Dental implants have prosthesis also been used for facial prosthesis which includes nasal, orbital or auricular prosthesis. Implant and bar retain

What are some prophylactic measures against ascariasis, What are some proph...

What are some prophylactic measures against ascariasis? The main prophylactic calculates against ascariasis are: efficient washing of vegetables and other foods; basic sanitar

Infectious bronchitis (ib), I nfectious bronchitis (IB) Infectious bro...

I nfectious bronchitis (IB) Infectious bronchitis is a highly contagious respiratory disease of poultry, caused by a virus belonging to the family Coronaviridae. Its existence

Phylum Protozoa, Make a detailed study on Phylum Protozoa taking an example...

Make a detailed study on Phylum Protozoa taking an example with clear labeled diagrams.

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