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NEW TESTING METHODS OF AIR FILTERS.

NOUVELLES METHODES D'ESSAI DE FILTRES A AIR.

Author(s) : GUSTAVSSON J., RAULT J. Y.

Type of article: Article

Summary

THE AUTHORS REVIEW THE MECHANISMS OF FILTRATION AND THE PHYSICAL LAWS WHICH RULE IT; THEY EXPLAIN THE GENERAL SHAPE OF EFFICIENCY CURVES OF FILTERS AND THE CONCEPT OF THE PARTICLE SIZE MOST DIFFICULT TO CAPTURE, WHICH IS CHARACTERISTIC OF A FILTER, AND THEY ANALYZE THE INFLUENCE OF PARTICLE DENSITY AND SIZE. THEY THEN DESCRIBE THE OLD MEASUREMENT METHODS AND THE FUTURE ONES FOR ABSOLUTE FILTERS (VDMA IN GERMANY, ASHRAE 52/76, EUROVENT 4/5). THEN, THEY DISCUSS NEW METHODS USING GRANULOMETRIC EFFICIENCY AND PROPOSE VARIOUS DEVICES FOR MEASURING PARTICLE COUNT AND SIZE. THEY DESCRIBE MORE PARTICULARLY A LASER PARTICLE COUNTER, AND ACONDENSATION NODE COUNTER COUPLED WITH AN ELECTROSTATIC CLASSIFIER. J.R.

Details

  • Original title: NOUVELLES METHODES D'ESSAI DE FILTRES A AIR.
  • Record ID : 1992-0309
  • Languages: French
  • Source: Chaud Froid Plomb. - n. 524
  • Publication date: 1991/04
  • Document available for consultation in the library of the IIR headquarters only.

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