Browsing Open Access Reports by Author "Meintjies, AA"

Now showing items 1-10 of 10

Adsorption swelling: A survey of the literature

Author: Meintjies, AA Date: 1965 The purpose of this study is to gain an insight into one possible aspect of the problem of scaling of coal, that is the part which is played by the swelling and shrinkage of coal and coal minerals which accompany the adsorption and desorption ... Read more
Aspects of the explosibility of coal macerals

Author: Sevenster, PG ; Meintjies, AA ; Van Den Berg, PJ Date: 1969 In continuing the investigation into the causes of the lesser susceptibility of South African coal dust to explosion, attention has been given to the relationship between the petrographic of coals and their explosibility. Read more
Determination of the characteristics of the thermal decomposition products of coal

Author: Meintjies, AA Date: 1971 This report contains details regarding the composition of the gaseous decomposition products formed when coal is pyrolysed at a fast rate. Read more
The F.R.I. recording flame methanometer model A

Author: Meintjies, AA Date: 1967 The sensing element of the methanometer is a small hydrogen flame which burns in air at the tip of a metal jet. The electrical resistance of the hydrogen flame is extremely high and is decreased when an organic substance burns in it. The ... Read more
The FRI recording methanometer - Field trails

Author: Meintjies, AA Date: 1968 Field testing of the FRI methanometer is in progress at D.N.C colliery. This work was undertaken to investigate the reliability of the instruments and to train personnel to operate and service them before any extensive study should be started ... Read more
An interim report ignition of coal dust

Author: Meintjies, AA Date: 1965 This report contains preliminary results of tests carried out to determine the ignitability of coal dusts. Read more
Interim report on the characteristics of the volatile matter of coals

Author: Meintjies, AA Date: 1967 A preliminary study was made of the application of pyrolysis-gas chromatography to coal dust. A correlation between the explosibility index of a coal and the nature of its volatile matter would prove useful. Read more
Interim report on the characteristics of the volatile matter of coals

Author: Meintjies, AA ; Van Der Berg, F Date: 1968 The object of this investigation was to determine whether a correlation could be found between the known explosive properties of coal dusts and the nature, quantity and temperature dependence of volatile matter formation. Read more
A recording methanometer (prototype)

Author: Meintjies, AA Date: 1966 The document elaborates on a recording methanometer (prototype) that will determine the effect of mining operations and other factors such as changes in atmospheric pressure on the discharge of methane concentration for extended periods. Read more
A recording optical extensometer

Author: Meintjies, AA Date: 1963 An optical extensometer was devised for measuring the linear expansion and contraction of slid blocks of coal occurring during the adsorption or desorption of moisture from the surrounding atmosphere. Read more

Now showing items 1-10 of 10

Browse

All of ResearchSpace
This Collection
- By Issue Date
- Authors
- Titles
- Subjects
- Publication Type
- Cluster
- Impact Area

Quick Links

Legislation and compliance

General Enquiries

Tel: + 27 12 841 2911
Email: callcentre@csir.co.za

Physical Address
Meiring Naudé Road
Brummeria
Pretoria
South Africa

Postal Address
PO Box 395
Pretoria 0001
South Africa

Social Connect

Resources on this site are free to download and reuse according to associated licensing provision. Please read the terms and conditions of usage of each resource.

Browsing Open Access Reports by Author "Meintjies, AA"

Browsing Open Access Reports by Author "Meintjies, AA"

Browse

All of ResearchSpace

This Collection

Quick Links

Legislation and compliance

General Enquiries

Social Connect