By Howard L. Hartman
This revised variation provides an engineering layout method of air flow and air con as a part of the excellent environmental regulate of the mine surroundings. It presents an in-depth glance, for practitioners who layout and function mines, into the health and wellbeing and safeguard facets of environmental stipulations within the underground office.
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Example text
Prior to 1969, some coal mines were thought to be methane-free or to liberate methane in such small amounts as to be referred to as nongassy. With passage of the Federal Coal Mine Health and Safety Act of 1969, however, the "nongassy" classification was eliminated, and all coal mines are now considered to be gassy. Noncoal mines, however, retain a classification scheme consisting of several categories into one of which a mine must be placed. , 1995a). 25% needs to be detected in a noncoal mine to place the mine in category I.
Much of the joint evolution of mining and ventilation systems, however, has been fortuitous and unplanned. S. industries. There is now reason to believe that the situation may be changing (Hartman, 1982). Four highly important developments in the last three decades, two technological and two nontechnical, are responsible: 1. The high-speed, electronic digital computer, permitting advanced solutions to ventilation circuits and networks heretofore unsolvable 2. The systems approach, which optimizes complex industrial operations, permitting personnel, materials, and methods to be coordinated in the most efficient way 3.
Industries. There is now reason to believe that the situation may be changing (Hartman, 1982). Four highly important developments in the last three decades, two technological and two nontechnical, are responsible: 1. The high-speed, electronic digital computer, permitting advanced solutions to ventilation circuits and networks heretofore unsolvable 2. The systems approach, which optimizes complex industrial operations, permitting personnel, materials, and methods to be coordinated in the most efficient way 3.