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

Describe cytokinesis in a plant cell, Describe cytokinesis in a plant cell....

Describe cytokinesis in a plant cell. Vesicles produced by the Golgi apparatus fuse at  the midline of the cell to form the cell plate, a  cell wall that elongates to divide th

Differentiate soil horizons and mong the soil groups, Differentiate soil ho...

Differentiate soil horizons and mong the soil groups To make precise differentiation among soil horizons and among the soil groups, the field data on soil morphology are suppor

The denver development screening test (ddst), THE DENVER DEVELOPMENT SCREEN...

THE DENVER DEVELOPMENT SCREENING TEST (DDST) The Denver Development Screening Test is a standardized test to assess gross motor, fine motor, language and social development

Illustrate about the metabolic waste products in the cornea, Illustrate abo...

Illustrate about the metabolic waste products in the cornea? Metabolic Waste Products During the metabolism various waste products including lactic acid, protein an

When the carbon dioxide concentration is increased, Why is the carbon dioxi...

Why is the carbon dioxide concentration a limiting factor of the photosynthesis process? When the carbon dioxide concentration is increased indefinitely is photosynthesis also incr

Explain inotropes and vasopressors, Explain Inotropes and Vasopressors ...

Explain Inotropes and Vasopressors Persisting hemodynamic instability after correction of hypovolemia would necessitate the use of vasoactive agents. Which drug or interventio

Nervous system - midbrain, MID BRAIN - Optics lobes 4 in number ( Corpo...

MID BRAIN - Optics lobes 4 in number ( Corpora Quadrizemmini ) in frog corpora bizemmini . Solid, optocoel is absent. 2 superior coculi and 2 inferior coculi are present.

Define fermented dairy products-curd and yogurt, Normal 0 false...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Different phases of spermatogenesis, DIFFERENT PHASES OF SPERMATOGENESIS ...

DIFFERENT PHASES OF SPERMATOGENESIS Spermatogenesis complete into two phases. 1 .       Spermatocytogenesis The entire process can be divided into three phases : (i

Social determinants of health - unemployment, Social Determinants of Health...

Social Determinants of Health - Unemployment That unemployment gives rise to social insecurity and psychological stress is well recognised. Fears and uncertainties are known t

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