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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 221 to 230 of 2490 (0.023 seconds)Spelling suggestions: "subject:"goal"" "subject:"coal""
| 221 |
The characterisation and modification of binders used in the manufacture of carbon anodesTwigg, Anthony Nicholas January 1989 (has links)
No description available.
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| 222 |
The effects of colliery waste on littoral species and communitiesHyslop, Brian T. January 1996 (has links)
No description available.
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| 223 |
The formation and monitoring of gases associated with the spontaneous combustion of coalCooper, Malcolm January 1991 (has links)
No description available.
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| 224 |
Viscosity effects in small diameter hydrocyclonesCaswell, Robert J. January 1990 (has links)
No description available.
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| 225 |
The development of new coal minesForrest, W. January 1987 (has links)
No description available.
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| 226 |
Technology transfer for mining projects in developing countriesDow, Robert January 1988 (has links)
No description available.
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| 227 |
Coal liquefaction : prediction of yields and behaviour of blendsPickering, Andrew Mark January 1996 (has links)
No description available.
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| 228 |
The application of expert systems to mine project analysisGraham, Peter E. January 1991 (has links)
No description available.
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| 229 |
Imaging of subsurface faults by walk-away seismic profileJackson, Geoffrey Michael January 1992 (has links)
No description available.
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| 230 |
Some properties of cokes produced from high pressure carbonisation of coalsMan, Chi-Keung January 1990 (has links)
The British Gas Lurgi slagging gasifier is a counter-current fixed bed gasifier operating at high pressure. Coal descending the gasifier is pyrolysed to form coke which is then gasified. Properties of such coke affect the gasifier in its efficiency of operation. This thesis describes a) the carbonisation of cokes from coal under simulated gasifier conditions, b) the characterisation of the resultant cokes in terms of structure and physical properties and, c) the formulation of relationships between coal thermoplasticity and coke properties. Three high-volatile bituminous coals Manvers Barnburgh NCB 702, and Gedling (Manton NCB 502, NCB 802) were carbonised in an autoclave under a range of pressures (0.5- 8.0 MPa), using two different heating regimes, shock heating to 700 °c and slow heating to 700 °c at 5 °C/min. Physical characterisation of the resultant cokes was carried out using optical and mechanical techniques. Optical anisotropy and image analysis were used to determine coke structure and porosity respectively. Tensile strength, microstrength and abrasion resistance were measured to establish the cokes' resistance to various forms of breakage. High pressure dilatometry and plastometry were used to measure the effects of pressure and heating rate on coal thermoplastic properties. Relationships between coal thermoplastic properties and coke properties are very complex. This work has shown that these relationships are highly dependent on carbonisation conditions with heating rate rather than pressure being the more dominant parameter.
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