EVALUATION OF A PERISTALTIC PUMP FOR SAND SUSPENSION SAMPLING - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Proceedings Proceedings of the 39th IAHR World Congress Year : 2022

EVALUATION OF A PERISTALTIC PUMP FOR SAND SUSPENSION SAMPLING

Evaluation d'une pompe péristaltique pour la mesure des sables en suspension

Abstract

We present here some discussion on the capabilities of peristaltic pumps to sample sand suspension. We focus specifically on their ability to sample isokinetically. Tests were made using a peristaltic pump with variable discharge rate (Albin ALP17) in a facility at CNR Lyon where a suspension of known characteristics (concentration, flow speed) can be maintained in a closed system. Turbidimeters are set to measure continuously the concentration. Several nozzles are set with different orientation for pump sampling. A sensitivity analysis was carried out to evaluate the concentration error as a function of inlet velocity, flow velocity, concentration, particle size, nozzle orientation, etc. Finally, a significant problem for the peristaltic pump seems to be its pulsating inlet speed. Such a behaviour leads to an additional sampling errors due to the difficulty to respect an isokinetic sampling. For an in-situ measurement, the limited power of the pump is also a nonnegligible problem that strongly impacts the quality of the sampling. Based on these preliminary results, automatic samplers with a peristaltic pump are therefore not recommended for the evaluation of sand concentrations.
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Dates and versions

hal-03948180 , version 1 (20-01-2023)

Identifiers

  • HAL Id : hal-03948180 , version 1

Cite

Benoît Camenen, Loïc Deville-Cavellin, Fabien Thollet, Adrien Bonnefoy, Thierry Fretaud, et al.. EVALUATION OF A PERISTALTIC PUMP FOR SAND SUSPENSION SAMPLING. Proceedings of the 39th IAHR World Congress, 2022. ⟨hal-03948180⟩
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