Results 111 to 120 of about 85,607 (267)

Analysis of gas characteristics and generation rules of coal spontaneous combustion in goaf

open access: yesGong-kuang zidonghua, 2019
At present,there are few researches on coal spontaneous combustion with different metamorphic degree under environment conditions of simulated gradually heated goaf.
ZHOU Dong   +4 more
doaj   +1 more source

Rapidly Growing Middle Class Presents Severe Challenge for the Environment and Human Health in Asia and the Pacific [PDF]

open access: yes, 2016
Unprecedented economic growth, which has lifted millions out of poverty in Asia and the Pacific, is putting heavy pressure on ecosystems. Increasing unsustainable consumption patterns have led to worsening air pollution, water scarcity and waste ...

core  

Experimental developments for measuring the initiation of mine fires [PDF]

open access: yes, 2008
A scale model of a dead end gallery has been developed. After heated air flow was introduced, the increase in temperature and gases evolution were monitored.
Garcia Torrent, Javier   +3 more
core  

Research on spontaneous combustion 'three zones' in goaf of fully mechanized working face with large mining height

open access: yesGong-kuang zidonghua, 2019
In view of goaf spontaneous combustion prevention of 12401 fully mechanized working face with large mining height in Shangwan Coal Mine, CO is determined as prediction index gas of coal spontaneous combustion and C2H4 is used as auxiliary index gas to ...
QU Shijia   +3 more
doaj   +1 more source

Environmentally Friendly Pervious Concrete for Treating Deicer-Laden Stormwater: Phase II [PDF]

open access: yes, 2018
In Phase I of this project, graphene oxide (GO)-modified pervious concrete was developed using coal fly ash as the sole binder. The primary objectives of Phase II of this project were (1) to evaluate the stormwater infiltration capacity of GO-modified ...
Shi, Xianming, Xu, Gang
core  

FACTORS IN THE SPONTANEOUS COMBUSTION OF COAL

open access: yesJournal of the American Society for Naval Engineers, 1924
General statement -- Size of coal : fineness of pieces -- Temperature at time of storage -- Freshness of coal surface -- Rise of temperature to danger point -- Dissipation of heat generated -- Segregation of coal by sizes in a pile -- Access of oxygen : ventilation. ; Mode of access: Internet.
openaire   +2 more sources

Mitigation of air leakage through the goaf of retreat coalfaces [PDF]

open access: yes, 1999
In HBL (Lorraine coalfield), large amounts of air are used in order to dilute methane in retreat coalfaces. A parasite flow of air exists in the goaf, leading to the risk of spontaneous combustion of remaining coal as well as to a diminution of firedamp ...
Dupond, Pierre-Marie   +3 more
core   +1 more source

Flow Friction or Spontaneous Ignition? [PDF]

open access: yes, 2012
"Flow friction," a proposed ignition mechanism in oxygen systems, has proved elusive in attempts at experimental verification. In this paper, the literature regarding flow friction is reviewed and the experimental verification attempts are briefly ...
Gallus, Timothy D.   +2 more
core   +1 more source

Coal in Alaska requirements to enhance environmentally sound use in both domestic and Pacific Rim markets [PDF]

open access: yes, 1990
This document originates from three meetings held in 1989 with the leaders of the Alaskan Coal Industry and coal technologists from the U.S. Department of Energy (DOE)~ Mineral Industry Research Laboratory (MIRL) and Geophysical Institute - University of
Irwin, W.   +4 more
core  

Home - About - Disclaimer - Privacy