Method for determining the fouling ratio of at least one filter of a ventilation system and associated ventilation system

Abstract

The invention concerns a method for determining the fouling ratio of at least one filter of a ventilation and / or air handling system(s), comprising the following steps: choosing at least one filter to be analyzed B, determining the theoretical filtration capacity of the filter selected in step A by depending on the theoretical efficiency of the filter and the maximum amount of dust which can be theoretically retained by the filter, C collecting pollution data of at least one air entering the ventilation system and passing through the selected filter, D measuring the air flow rate entering the ventilation system, E calculating the amount of dust retained by the at least one filter selected, from the pollution data of the entering air of step C and from the measurement of the entering air flow rate of step D, F repeating step E for each time step t, G. determining the accumulated dust amount retained by the selected filter from the results of steps E and F. H determining the fouling ratio of the selected filter by comparing the accumulated dust amount determined at step G with the theoretical capacity of the filter determined in step B.

Description

technical field [0001] The present invention relates to the field of ventilation systems for buildings, and more particularly to ventilation systems equipped with air filters. Background technique [0002] Traditionally, buildings are ventilated for the protection of the frame as well as for the emission of pollutants, the pollution being generated especially by the occupants in the building, the materials and machines and the material of the frame. [0003] The principle of ventilation consists in the renewal of air by air movement in closed places. In this case, the ventilation of a building consists in renewing the interior air by bringing in outside air and / or circulating the interior air. [0004] In this application, outside air means air from outside the building. Furthermore, interior air refers to the ambient air present in a building. [0005] The renewed air, ie incoming air, is usually filtered in order to ensure a good quality of air in the building. Most ve...

AI Technical Summary

Problems solved by technology

However, this scheme does not allow efficient knowledge of the blocking state of the filter

In practice, clogging is especially dependent on contamination, the rate of contamination varies with time, however the presented scenario is based on a theoretical limitation period calculated for an immutable theoretical contamination

Therefore, the error message may appear when the filter is not blocked or after the filter is blocked

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