METHOD FOR EVALUATING THE CLEANING STATE OF AN AERATION AND/OR CONDITIONING PLANT OF A ROOM
First Claim
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1. Method for evaluating cleaning status of an aeration and/or conditioning plant of a room, the plant having ducts and at least an air vent inside said room, comprising at least the steps of:
- performing a first powder concentration measurement (S), obtained as average of a plurality of powder concentration measurements performed during a first predetermined time period (Δ
T1) of plant inactivity, inside said room at said air vent;
performing a series of powder concentration measurements during a second predetermined time period (Δ
T2) at starting of the plant inside said room at said air vent;
extracting a value of maximum concentration (P) from said series of measurements;
calculating a duct cleaning index (DCI) as difference between said value of maximum concentration (P) and said first concentration measurement (S), said duct cleaning index (DCI) being indicative of a dirty state of the ducts if it is greater than or equal to a first predetermined threshold value (TOLL1).
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Abstract
The present invention places in the field of the maintenance of aeration, conditioning, air-conditioning, etc. plants, and in particular the present invention relates to a method for evaluating the cleaning state of a plant, with particular reference to the atmospheric particulate.
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Citations
21 Claims
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1. Method for evaluating cleaning status of an aeration and/or conditioning plant of a room, the plant having ducts and at least an air vent inside said room, comprising at least the steps of:
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performing a first powder concentration measurement (S), obtained as average of a plurality of powder concentration measurements performed during a first predetermined time period (Δ
T1) of plant inactivity, inside said room at said air vent;performing a series of powder concentration measurements during a second predetermined time period (Δ
T2) at starting of the plant inside said room at said air vent;extracting a value of maximum concentration (P) from said series of measurements; calculating a duct cleaning index (DCI) as difference between said value of maximum concentration (P) and said first concentration measurement (S), said duct cleaning index (DCI) being indicative of a dirty state of the ducts if it is greater than or equal to a first predetermined threshold value (TOLL1). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification