- About
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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.
Search results
Showing 281 to 290 of 899 (0.017 seconds)| 281 |
The effects of storage on the quality of water held in river purification lakesChapman, B. T. January 1971 (has links)
No description available.
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| 282 |
Rates of Decomposition in Aeration TanksMurray, J. E. January 1977 (has links)
No description available.
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| 283 |
A Study of the effects of polluting effluents on some freshwater invertebratesPinchin, M. January 1971 (has links)
No description available.
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| 284 |
Fixed-bed gasification of biomassDogru, Murat January 2000 (has links)
This work investigates the performance of a downdraft-throated gasifier with tangential air injectors using a range of biomass feed-stocks with particular reference to hazelnut shells and also sewage sludge, leather waste and wood chips in order to generate clean produced gas for direct use in power generation engines. The experimental work included the design, fabrication and commissioning of a 5kWe/33kWt downdraft-throated gasifier with a throat size ranging from 7.2 to 13.5 cm and associated gas clean-up line and flaring facility. Experiments were carried out on this unit to investigate the effect of dry fuel capacity on gasifier performance, the influence of reactor insulation and preheated air effects, different air-feed nozzle types and numbers and also throat diameters. The effect of these variables on the gas quality and tar cracking ability was the main concern of this work. In parallel, a laboratory scale large sample thermogravimetric analyser is also used which allows the data on burnout characteristics of different fuel particles to be measured under agitated conditions. The conditions chosen simulate the combustion and gasification behaviour in a gasifier for a range of biofuel pellets and the burnout data obtained is linked to the operating parameters of the gasifier. Around 50 gasifier runs have been performed and full mass and energy balances reported. Good mass and energy balances closures were achieved and the overall energy efficiency from fuel to cold clean gas averaged 60.4%. The gasifier was found to operate successfully for a wide range of fuels without much evidence of bridging, but this was linked to fuel size and preparation, and it had a maximum turndown ratio of 3:1. The highest quality gas for stable operation was found at 70-80% of the maximum capacity.
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| 285 |
Retention time in percolating filtersTariq, M. N. January 1972 (has links)
No description available.
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| 286 |
Fluorescent staining techniques for the rapid detection of bacteria in water suppliesPugsley, A. P. January 1973 (has links)
No description available.
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| 287 |
Airblast Atomization: The Effect of Linear Scale on the Mean Drop SizeEl-Shanawany, M. S. M. R. January 1978 (has links)
No description available.
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| 288 |
Some Aspects of the Flow Near a Swept Attachment Line with Particular Reference to Boundary Layer TransitionPoll, D. I. A. January 1978 (has links)
No description available.
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| 289 |
High Speed Flow over Two Dimensional and axisymmetric bodiesRichards, G. January 1978 (has links)
No description available.
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| 290 |
Mechanical flocculation as an aid to sewage sedimentationAl-Hashimi, M. A. I. January 1978 (has links)
No description available.
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