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Analysis of the difficulties in measuring air speed in the agro-food industries.

Analyse des difficultés de mesure de la vitesse de l'air dans les industries agroalimentaires.

Author(s) : PEYRIN F., KONDJOYAN A., DAUDIN J. D.

Type of article: Article

Summary

The data given by some commercial anemometers was analyzed in experiments carried out in a calibrating wind-tunnel that can vary the air speed and temperature from 0.2 to 5.5 m/s and from 3 to 40 deg C, respectively. The results showed that air temperatures have a strong influence on the accuracy of the measurements if no adjustements are made. When used in a refrigeration environment, anemometers having no temperature compensation system can overestimate speeds by more than 30%. The margin of error of anemometer fitted with a compensation system is smaller, but no rule was found for predicting how much smaller.

Details

  • Original title: Analyse des difficultés de mesure de la vitesse de l'air dans les industries agroalimentaires.
  • Record ID : 1996-2757
  • Languages: French
  • Source: Ind. aliment. agric. - vol. 112 - n. 10
  • Publication date: 1995/10
  • Document available for consultation in the library of the IIR headquarters only.

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