The Carbonisation of Coal a Scientific Review of the Formation Composition And
The Carbonisation of Coal a Scientific Review of the Formation Composition And
Vivian Byam Lewes
The book The Carbonisation of Coal a Scientific Review of the Formation Composition And was written by author Vivian Byam Lewes Here you can read free online of The Carbonisation of Coal a Scientific Review of the Formation Composition And book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Carbonisation of Coal a Scientific Review of the Formation Composition And a good or bad book?
What reading level is The Carbonisation of Coal a Scientific Review of the Formation Composition And book?
To quickly assess the difficulty of the text, read a short excerpt:
, gives a carbonising value for a six-hour charge of twelve tons per 1000 square feet of retort surface. There is no doubt as tp the fact that the heat transmitted by the walls of the retort rapidly falls as the interior heat rises, so that through the whole period of carbonisation the rate of transmission diminishes, whilst the temperature of the charge increases. Euchene determined experimentally the proportion of the total heat transmitted by the walls of the retort during a four-hour charge..., with the following result : 1st hour .... 43'8 per cent. 2nd . . . 20-6 3rd . . . . 18-7 4th 16-9 100-0 The ratio of heating surface to weight of charge is one of the most important factors in determining not only the rate of carbonisation, but also the composition of the gas. Where large volume and high illuminating power are the desiderata, as has been the case in the past, large heating surface, small charges, and quick carbonisation have yielded the best results, and the horizontal retort, as shown by the foregoing calculation, has given a carbonising duty of twelve tons per 1000 square feet of surface for six-hour charges, a figure which is a little below that given by Mr Bond in his 1905 paper before the Institution of Gas Engineers, who gives 128 THE CARBONISATION OF COAL 2*13 tons per 1000 square feet per hour.
User Reviews: