Browsing by Author "De Beer, M."
Now showing items 1-7 of 7
-
Conversion of calcium sulphide to calcium carbonate during the process of recovery of elemental sulphur from gypsum waste
De Beer, M.; Liebenberg, L.; Maree, J.P.; Doucet, F.J. (Elsevier, 2014)The production of elemental sulphur and calcium carbonate (CaCO3) from gypsum waste can be achieved by thermally reducing the waste into calcium sulphide (CaS), which is then subjected to a direct aqueous carbonation step ... -
Evaluation of thermal desorption as an alternative technique for the measurement of coal tar pitch volatiles
Van der Merwe, Cornelius Johannes (North-West University, 2011)Motivation: The accurate and reliable measurement of the concentration of coal tar pitch volatiles (CTPVs) in ambient air has proved to be a challenge for occupational hygienists. The challenge must however be confronted ... -
Experimental investigation of the effective thermal conductivity in the near-wall region of a packed pebble bed
De Beer, M.; Du Toit, C.G.; Dreyer, H. (SACAM, 2016) -
Experimental study of the effective thermal conductivity in the near-wall region of a packed pebble bed
De Beer, M.; Du Toit, C.G.; Rousseau, P.G. (Elsevier, 2018)The effective thermal conductivity is an important parameter that represents the overall heat transfer in packed beds, including packed pebble beds. Experimental test facilities have been used to determine the effective ... -
Inhibition of photosystem II activities in soybean (Glycine max) genotypes differing in chilling sensitivity
Krüger, G.H.J.; De Villiers, M.F.; Strauss, A.J.; De Beer, M.; Van Heerden, P.D.R.; Strasser, R.J. (Elsevier, 2014)Due to chilling sensitivity, minimum night temperatures represent the main constraint in soybean production in South Africa. In vivo quantification of photosystem II (PSII) function by direct chlorophyll fluorescence ... -
A methodology to investigate the contribution of conduction and radiation heat transfer to the effective thermal conductivity of packed graphite pebble beds, including the wall effect
De Beer, M.; Du Toit, C.G.; Rousseau, P.G. (Elsevier, 2017)The effective thermal conductivity represents the overall heat transfer characteristics of a packed bed of spheres and must be considered in the analysis and design of pebble bed gas-cooled reactors. During depressurized ... -
A review of methods to predict the effective thermal conductivity of packed pebble beds, with emphasis on the near-wall region
De Beer, M.; Du Toit, C.G.; Rousseau, P.G. (Elsevier, 2018)The effective thermal conductivity is an important parameter that is representative of the overall heat transfer in a packed bed of spheres. It includes the effects of conduction through the solid material and contact areas ...