Download or read book Deterioration in the Heating Value of Coal During Storage Classic Reprint written by Horace C. Porter and published by Forgotten Books. This book was released on 2018-02-08 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Deterioration in the Heating Value of Coal During Storage The detailed report is presented in this bulletin, which gives a full account of the tests and the analytical data covering a period of five years' storage. Data of somewhat similar experiments for shorter' periods with gas coal from the Pittsburgh bed, with Pocahontas coal on the Isthmus Of Panama, and with Sheridan, Wyo., subbituminous coal, which is used for railroad and other purposes in the West, are included. The tests of New River coal, in cooperation with the Navy Depart ment, were undertaken to determine the advantage to be gained by storing coal under water, and particularly under salt water. Small lots were used in order to make the tests of maximum severity, and parallel experiments were made with run-oi-mine and crushed coal under one-fourth inch size. All of the small lots tested under the different conditions (except those tested near Key West, Fla.) were taken as representative portions from one large original lot. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Deterioration and Spontaneous Heating of Coal in Storage written by Horace C. Porter and published by Forgotten Books. This book was released on 2017-11-10 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Deterioration and Spontaneous Heating of Coal in Storage: A Preliminary Report Similar views have been held more recently. For example, in a paper before the United States Naval Institute, in 1906, b one finds the statement: The pressure of the weight of coal causes gases to be evolved; these gases constitute the chief and only value of the coal in that they furnish the heat units. It is claimed that if a ton of fine bituminous coal be spread out on a concrete pave ment in the open air in this climate [key West, for one year, it will lose all its calorific properties. The gases are simply free to escape, and when the coal has lost all its gas it will have lost all its heat units and be simply coke. The author's meaning, no doubt, is that the heat units in the volatile part of the coal are all lost by storage in the manner described. In 1907 a German gas-works engineer claimed0 to have found that moist fine coal sustained an average heating value loss of per cent per week by the escape of gas. The 1889 edition of Groves and Thorpe's Chemical Technology of Fuels says: d In some places coal is known to lose 50 per cent of its heating value in six months. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Deterioration in the Heating Value of Coal During Storage by Horace C Porter and F K Ovitz written by F. K. Ovitz and published by . This book was released on 1917 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deterioration in the Heating Value of Coal During Storage written by Horace Chamberlain Porter and published by . This book was released on 1917 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Storage Upon the Properties of Coal Classic Reprint written by S. W. Parr and published by Forgotten Books. This book was released on 2018-02-18 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Effects of Storage Upon the Properties of Coal It will be seen from this summary that the most serious part of the problem relates to the matter of spontaneous heating, and prob ably the least serious phase relates to deterioration and actual loss of heat values. It is certain that at the present time a better under standing of these difficulties has been reached, and there is reason for believing that this better understanding of the fundamental principles involved will lead to some practicable and safe procedure for the stocking of bituminous coal. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Effects of Oxygen on the Sulphur and Heating Value of Coal written by Glenn Coley and published by Forgotten Books. This book was released on 2017-11 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Effects of Oxygen on the Sulphur and Heating Value of Coal: Thesis The question of the deterioration of coal in storage and also the closely connected subject of spontaneous combustion in storage are old ones. The literature on these two subjects is very extensive and hard to get at, but a good summary of the work on spontaneous combustion is given in the appendix of Parr and Kressman's1 bulletin on, The Spontaneous Combustion of Coal. The first part of the work outlined in this paper was ansattempt to find out what part iron sulphide had in the spon tensons combustion of coal but this work was stopped before anything definite was decided upon. The second part of this work dealt with the change in calorific value after treatment with oxygen at a pressure of 20 to 25 atmospheres. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Deterioration in the Heating Value of Coal During Storage written by Horace Chamberlain Porter and published by . This book was released on 1917 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deterioration in the Heating Value of Coal During Storage by Horace C Porter and F K Ovitz written by Horace Chamberlain Porter and published by . This book was released on 1917 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deterioration and Spontaneous Heating of Coal in Storage written by Horace Chamberlain Porter and published by . This book was released on 1912 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deterivation in the Heating Value of Coal During Storage written by Horace C. Porter and published by . This book was released on 1917 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book DETERIORATION AND SPONTANEOUS HEATING OF COAL IN STORAGE written by HORACE C. PORTER and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deterioration and Spontaneous Heating of Coal in Storage a Preliminary Report by Horace C Porter and F K Ovitz written by F. K. Ovitz and published by . This book was released on 1912 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deterioration and Spontaneous Heating of Coal in Storage written by United States. Bureau of Mines and published by . This book was released on 1912 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Moisture on the Spontaneous Heating of Stored Coal Classic Reprint written by S. H. Katz and published by Forgotten Books. This book was released on 2018-02-12 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Effects of Moisture on the Spontaneous Heating of Stored Coal There is no doubt a floating opinion among people accustomed to the handling of coal to the effect that moisture does increase the tendency to spontaneous combustion. In a letter to the English commission in 1876, Mr. Poole, inspector of mines, Nova Scotia, makes the following remark: Heat has been observed in piles of slack coal that have been accumulated during the winter, when the season has been showery but not when it has been dry. This evidence is very direct and absolutely opposed to Fayol's experience, and a great deal of similar evidence was tendered to the English commission. For instance, out of 26 answers to questions as to the effect of moisture every reply was to the effect that moisture was a source of danger. An examination of the reported evidence shows that in every case (with the above exception) this was a matter of impression merely. Cross-examination of a number of witnesses before the New South Wales commission, who held this opinion, convinced me that it was in general held'on very slender grounds; and two cases in which the rain had apparently increased the tendency of the coal to heat were otherwise explained. In the presence of air and moisture pyrite readily oxidizesc and pyrite in coal has often been blamed for spontaneous combustion. Threlfall d showed that the oxidation of pyrite has much less effect in the heating of coal than the oxidation of the coal substance itself. He reviewed the work of previous investigators and commissions that investigated mine fires all the evidence was against the idea. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book A Study of the Deterioration and Spontaneous Combustion of Coal in Storage and Methods of Prevention written by Spencer D. Hopkins and published by . This book was released on 1916 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Volatile Matter of Coal Classic Reprint written by Horace C. Porter and published by Forgotten Books. This book was released on 2017-07-17 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Volatile Matter of Coal The various fuel investigations that were being carried on by the technologic branch of the United States Geological Survey were transferred by law on July 1, 1910, to a new federal bureau, the Bureau of Mines, that was authorized to continue the investigations and make public reports of the results. In consequence of this transfer, the following report is published as a bulletin of the new bureau. The United States Geological Survey had been engaged in analyzing and testing coals, lignites, and other mineral fuel substances under authority given by act of Congress. This work, now centered at the experiment station at Pittsburg, Pa., had its beginning in the operations of the coal-testing plant erected at the Louisiana Purchase Exposition in St. Louis, Mo., in 1904. The results obtained at that plant showed that the work of determining the fuel value of the coals and lignites in the United States with a view to increasing efficiency in their utilization would be incomplete if it did not include systematic physical and chemical researches into the processes of combustion. Hence in its later investigations the Survey carried on such te searches, concentrating attention ou those lines of inquiry which promised results of greatest economic importance. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Weathering of the Pittsburgh Coal Bed at the Experimental Mine Near Bruceton Pa Classic Reprint written by Horace C. Porter and published by . This book was released on 2015-07-21 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Weathering of the Pittsburgh Coal Bed, at the Experimental Mine, Near Bruceton, Pa The Bureau of Mines, in carrying out one of the provisions of its organic act - to disseminate information concerning investigations made - prints a limited free edition of each of its publications. When this edition is exhausted copies may be obtained at cost price only through the Superintendent of Documents, Government Printing Office, Washington, D. C., who is the authorized agent of the Federal Government for the sale of all publications. The Superintendent of Documents is not an official of the Bureau of Mines. His is an entirely separate office and he should be addressed: Superintendent of Documents, Government Printing Office, Washington, D. C. The general law under which publications are distributed prohibits the giving of more than one copy of a publication to one person. Additional copies must be purchased from the Superintendent of Documents. The cost of this Technical Paper is 5 cents. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.