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Fuel Research Institute of South Africa (FRI) Collection: Recent submissions

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Investigation of various properties affecting settling rates dense-medium suspensions using magnetite

Author: Wolff, WTE Date: 1975 The settling rate of dense-medium suspensions of three different magnetite ore samples was investigated. The result of the investigation indicates that the settling rate increases with (i) the increase in temperature of the suspension and 9 ... Read more
A preliminary report on investigation into the problem of phosphatic deposits in coal fired boilers

Author: Darazs, M ; Clark, D Date: 1976 A literature survey has been carried out. Investigation into the growth of phosphatic deposits, using the Institute's experimental boiler plant, are reported. Read more
Low-temperature carbonisation assay of South African coals in a laboratory scale test apparatus: Part 1 The apparatus and experimental procedure

Author: Meinjes, AA Date: 1976 This report describes the apparatus used to determine the low-temperature carbonisation properties of South Africa. Read more
The spontaneous combustion liability index of Anglo power kriel coal

Author: Erasmus, TC Date: 1976 The so-called reactivity index, a diminution of spontaneous combustion liability index, gives an indication of a coal's liability towards spontaneous combustion. Read more
Predicting the performance of a coal washer with aid of a mathematical model

Author: Erasmus, TC Date: 1975 This report is intended to be read at the fifth international coal preparation congress in sydney, Australia, in May, 1976. Read more
The reactivity index of sample of coal submitted by the Somerset Mining Company

Author: Viljoen, GA ; Kuhn, AH ; Erasmus, TC Date: 1974 A sample of coal submitted by the Somerset Mining Company was treated in the Institute's coal preparation pilot plant as Pretoria West. The major portion of the relative density float product prepared in the Drewboy washer, was subsequently ... Read more
The Maceral composition of the products prepared by the Collieries in the Orange Free State and at New Springfield in the Transvaal

Author: Moodie, B Date: 1974 A survey of the Maceral composition of the products prepared by the collieries in the Republic was initiated a number of years ago. The first report (Report No. 10 of 1974) dealt with the Maceral composition of the products prepared by the ... Read more
The carbonization of coal and the production of coke, Char, Gas, and by-products in South Africa up to 1972

Author: Mullier, EFE Date: 1974 This report gives a reflection of the carbonization of coal and the production of metallurgical coke, gas coke, char, gas, and by-products in South Africa during the period 1915 to 1972. Data prior to 1954 is relatively incomplete, but from ... Read more
Measurement of the magnetic properties of magnetite according to the Twin Isthmus method

Author: Von Wolff, WTE ; Kessler, IIM Date: 1966 This report discusses the measurement of the magnetic properties of magnetic according to the Twin Isthmus method. Read more
Report on the performance of the 4" water cyclone

Author: Saler, A Date: 1972 The investigation was undertaken as a preliminary study of the 4" Compound Water Cyclone, with regard to its separation efficiency, range of yields obtained and throughput capacity. The main purpose behind this work was to gain some experience ... Read more
An investigation into the ignition properties of the South African Pulverized coals

Author: Erasmus, TC Date: 1972 The present study is confined to investigation of the ignition phase of the combustion process and deductions must be seen in that light. Read more
A description of the delayed coking apparatus

Author: Erasmus, TC Date: 1973 This report discusses an investigation conducted by the Fuel Research Institute to construct a small-scale version of the delayed-coking apparatus, and study the fundamentals involved and the essential features that characterize the delayed-coking ... Read more
A statistical treatment of the data obtained with the Dorrclone classifier

Author: Erasmus, TC Date: 1973 This report discuss a statistical treatment of the data obtained with the Dorrclone classifier. Read more
Particle equilibrium conditions at the boundary of A stream and originating transport phenomena

Author: Bonapace, AC Date: 1973 This paper discusses the potential function, critical conditions governing the phenomena of particle deposition, saltation, and the formation of dunes. Read more
Report on lubricating oils used in supercharged Rolls Royce kerstrel engines

Author: Coetzee, JJ Date: 1939 This report gives feedback on lubricating oils used in supercharged Rolls Royce kerstrel engines. Read more
The reduction in ash content of some South African Coals

Author: Vogel, JC Date: 1938 The high capital cost of coal hydrogenation plant makes it essential that oil output be maintained at high level as possible as this factor must primarily govern the choice of the coal to be used or the decision as to whether as coal is ... Read more
Size distribution of run-of-mine coal from 11 collieries: Mining no. 2 seam in the Wintbank-Middleburg coalfield. Comparison of size distribution of run-of-mine coal, cuttings and drillings

Author: Raab, GA Date: 1974 A knowledge of size distribution of the coal produced is of obvious interest to the coal industry and suppliers of mining and coal preparation equipment. Read more
A criterion of classification of piston operated machines with prticular reference to Hydraulic piston pumps

Author: Bonapace, AC Date: 1975 This presentation fairly sums up the possibilities and the limitations of the present manufacturing technology of these as industrial products. Read more
The need for research on pilot plant scale at the fuel research institute

Author: Petrick, AJ Date: 1971 This report discusses the importance of fuel research institute as an industrial research institution, and emphasis on how problems of direct interest to the industries served by the Institute fall directly to their responsibility to undertake ... Read more
The prediction of Tromp distribution curves for cyclone washers

Author: Erasmus, TC Date: 1972 A mathematical model has been developed by means of which it is possible to predict the Tromp distribution curve at any mean separation specific gravity within the range 1,3 to 1,5. These curves serve as a reference against which the efficiency ... Read more

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