Studies conducted on surface coal mining equipment have identified whole-body vibration as a significant hazard. Operators of underground mobile equipment, particularly shuttle cars and transport vehicles, are likely to be exposed to significant levels of whole-body vibration. To date, measuring whole-body vibration from underground mining mobile equipment has been difficult due to the strict g...

Five acidophilic protozoa (three flagellates, one ciliate and one amoeba) were isolated from acid mine water and a coal biotreatment plant, and grown in mixed cultures with acidophilic bacteria. Cultures were routinely maintained in ferrous sulphate media: in media containing pyrite or pyritic coal, protozoa grew in cultures containing coarse-grain (61-200 pm) but not fine-grain (c 61 pm) miner...

The key threat to reliability and prices is the exit of coal plants at short notice. The risk of such exits has been demonstrated most recently through the Hazelwood closure in VIC where five months’ notice is all that was available. None of the key modellers (including AEMO) predicted it. If anything, the risk of sudden exit is rising as the coal plant fleet is ageing, the economics of coal pl...

As of 1998, electric utility companies burning coal or oil are required to report their annual releases of toxic chemicals to the Toxics Release Inventory (TRI), a national compilation of multimedia (air, water, land) releases of over 600 chemicals and chemical categories designated as toxic by the U.S. Environmental Protection Agency (EPA). TRI reports for 1998 must be filed with EPA by July 1...

The Plant The Altbach/Deizisau CHP plant ensures reliable, economical and environmentally-friendly power supply. EnBW operates several plants at the site with a total output of around 1,200 MW, including the 476 MW coal-fired block HKW 1. The district heating generated supplies a considerable proportion of the industrial enterprises in Esslingen and Stuttgart, as well as private households in t...

The hot strength of coke prepared from an acid-washed lignite by briquetting-carbonization before and after CO2 gasification was, for the first time, investigated in this work. at 1000°C was higher than measured a room temperature. resulted linear decrease with reaction time. lignite-coke showed faster during gasification, compared to conventional cokes derived caking coal or non-or slightly co...

We present results of a life cycle assessment (LCA) of Marcellus shale gas used for power generation. The analysis employs the most extensive data set of any LCA of shale gas to date, encompassing data from actual gas production and power generation operations. Results indicate that a typical Marcellus gas life cycle yields 466 kg CO2eq/MWh (80% confidence interval: 450-567 kg CO2eq/MWh) of gre...

The present study investigates the impact of various factors affecting coal-fired power plant economics of 210 MW subcritical unit situated in north India for electricity generation. In this paper, the cost data of various units of thermal power plant in terms of power output capacity have been fitted using power law with the help of the data collected from a literature search. To have a realis...