A short description of the isokinetic sampling technique is given. The technique, which in itself is not new, is here applied to a dense solids-gas mixture. An analysis is presented of the factors in (1) the measuring procedure, and (2) the geometry of the probe, that influence the accuracy with which gas and solids flux profiles can be measured. Finally, a few random examples are given of profiles as measured in our 0·3-m diameter riser.
NarjesL.‘Neuartige Nulldrucksonden zur quasiisokinetischen Staubprobenahme bei höher Staubstromdichte’, Arch. tech. Messen1964 (January), part I, 1286–15 (No. 336); 1964 (February), part II, 1286–16 (No. 337), 33.
3.
BohnetM.‘Staubgehaltsbestimmung in strömenden Gasen mit Absaug-Sonden’, Chemie-Ingr-Tech.196739 (No. 16), 972.
4.
van ZoonenD.‘Measurements of diffusional phenomena and velocity profiles in a vertical riser’, Proc. Symp. Interaction between Fluids and Particles, London 1962 (20–22 June), 64.
