EXPERIMENTAL APPARATUS TO INVESTIGATE CALCIUM CARBONATE SCALE GROWTH RATES

Baker, D.K.; Vliet, G.C.; Lawler , D.F.

Proceedings of an International Conference on Mitigation of Heat Exchanger Fouling and Its Economic and Environmental Implications

ISBN Druckformat: 1-56700-172-6

EXPERIMENTAL APPARATUS TO INVESTIGATE CALCIUM CARBONATE SCALE GROWTH RATES

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D.K. Baker Department of Mechanical Engineering, The University of Texas at Austin Austin, TX 78712

G.C. Vliet Department of Mechanical Engineering, The University of Texas at Austin Austin, TX 78712

D.F. Lawler Department Civil Engineering The University of Texas at Austin Austin, TX 78712

Abstrakt

A continuous flow, closed-loop experimental apparatus has been developed to measure scaling rates under controlled conditions. Water chemistry, flow velocity, scale surface temperature, and bulk water temperature can all be held constant within a run and varied independently between runs. Scaling rates can be inferred from thermal fouling rates, changes in bulk water chemistry, mass deposited, and scale thickness. The results will be used to construct a better mechanistic rate model for calcium carbonate scale growth.

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