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The Effect Of Atmospheric Pressures On The Oxygen Level In A Sealed Mine
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Book Synopsis The Effect of Atmospheric Pressures on the Oxygen Level in a Sealed Mine by : Noel N. Moebs
Download or read book The Effect of Atmospheric Pressures on the Oxygen Level in a Sealed Mine written by Noel N. Moebs and published by . This book was released on 1972 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Atmospheric Pressures on the Oxygen Level in a Sealed Mine by : Noel N. Moebs
Download or read book The Effect of Atmospheric Pressures on the Oxygen Level in a Sealed Mine written by Noel N. Moebs and published by . This book was released on 1972 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Atomospheric Pressures on the Oxygen Levels in a Sealed Mine by : Noel N. Moebs
Download or read book The Effect of Atomospheric Pressures on the Oxygen Levels in a Sealed Mine written by Noel N. Moebs and published by . This book was released on 1972 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1972 with total page 1932 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis List of Bureau of Mines Publications and Articles ... with Subject and Author Index by : United States. Bureau of Mines
Download or read book List of Bureau of Mines Publications and Articles ... with Subject and Author Index written by United States. Bureau of Mines and published by . This book was released on 1975 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of Investigations written by and published by . This book was released on 1919 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Enthalpies and Entropies Above 298.15° K for Copper Sulfate and Copper Oxysulfate by : Michael John Ferrante
Download or read book Enthalpies and Entropies Above 298.15° K for Copper Sulfate and Copper Oxysulfate written by Michael John Ferrante and published by . This book was released on 1972 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Safety in Mines Abstracts written by and published by . This book was released on 1972 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications, Cumulative Index by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications, Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1976 with total page 1466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mine Drainage Abstracts by : Bituminous Coal Research, inc
Download or read book Mine Drainage Abstracts written by Bituminous Coal Research, inc and published by . This book was released on 1964 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water Pollution Control Act Amendments. Hearings ... 88-1,2 by : United States. Congress. House. Public Works
Download or read book Water Pollution Control Act Amendments. Hearings ... 88-1,2 written by United States. Congress. House. Public Works and published by . This book was released on 1964 with total page 1120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hearings Before the Subcommittee on Public Buildings and Grounds of the Committee on Public Works, House of Representatives ... by : United States. Congress. House. Committee on Public Works
Download or read book Hearings Before the Subcommittee on Public Buildings and Grounds of the Committee on Public Works, House of Representatives ... written by United States. Congress. House. Committee on Public Works and published by . This book was released on 1947 with total page 1630 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water Pollution Control Act Amendments by : United States. Congress. House. Committee on Public Works
Download or read book Water Pollution Control Act Amendments written by United States. Congress. House. Committee on Public Works and published by . This book was released on 1964 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Composition Change Model for Sealed Atmosphere in Coal Mines 2010 by : R. K. Zipf
Download or read book Composition Change Model for Sealed Atmosphere in Coal Mines 2010 written by R. K. Zipf and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A sealed atmosphere in a mined-out area of an underground coal mine is simply a volume with homogeneous composition governed by boundary conditions. This paper presents a mathematical model based upon the conservation of mass principle that describes the flow of air (nitrogen and oxygen), methane and carbon dioxide into and out of a sealed atmosphere and the time-dependent changes in gas concentration within the sealed atmosphere. As boundary conditions, the model includes the inflow of methane and carbon dioxide from the surrounding strata, the inflow of nitrogen as an inert gas, the production of carbon dioxide from coal oxidation and the related depletion of oxygen. The model also considers the barometric pressure which can either cause air to flow into the sealed atmosphere or gas to flow out of that volume, depending on the pressure differential with the sealed atmosphere. The mathematical model is implemented into a MATLAB® program for calculation and data display. Using a range of realistic input parameters, the model shows that the atmosphere within sealed atmospheres tends to become fuel-rich inert and the pressure tends to increase due to the inflow of methane gas from the surrounding strata. Sealed atmospheres may therefore have a natural tendency to outgas, i.e. to release gas into the mine atmosphere as leakage around and through the seals. The pressure within the sealed atmosphere will depend on the leakage gas flow resistance of the mine seal and the surrounding rock between the sealed atmosphere and the active mine. If this resistance is high enough, it appears possible to maintain the sealed atmosphere in a fuel-rich inert condition and outgassing at all times despite changes in the barometric pressure. Designing the seal and the sealed area to control leakage such that the sealed atmosphere remains inert could result in safer sealed areas with minimal explosion hazard.
Book Synopsis Government Reports Announcements by :
Download or read book Government Reports Announcements written by and published by . This book was released on 1974-11 with total page 1206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis List of Publications by : United States. Bureau of Mines
Download or read book List of Publications written by United States. Bureau of Mines and published by . This book was released on 1960 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bureau of Mines Research written by and published by . This book was released on with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: