Methods and systems to measure fluid flow
AssigneeTrane International Inc.
InventorsWilliam G. Hansen, Lane A. Liudahl
Life of this patent
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Abstract
Methods and systems to measure a volumetric fluid flow rate through a fluid flow passage, such as an air handler of a HVAC system, are described. The method may include obtaining a flow rate measurement in a measuring section, and calculating a total flow rate based on a correlation between the obtained flow rate measurement and the total flow rate. The method may also include blocking a portion of the fluid flow passage so that when a minimal volumetric fluid flow rate is provided, the flow rate measurement obtained in the measuring section is at about a minimal sensitivity flow rate requirement.
Claims3
-5. (canceled)
A method to measure total volumetric fluid flow rate through a fluid flow passage comprising:
- obtaining a fluid flow parameter value in a measuring section of the fluid flow passage;
- obtaining a volumetric fluid flow rate by plotting the parameter value on a correlation between the parameter value and the volumetric fluid flow rate of the measuring section;
- and
- obtaining the total volumetric fluid flow rate by plotting the parameter value obtained in the measuring section on a correlation between the parameter values and the total volumetric fluid flow;
- wherein the measuring section is smaller than the fluid flow passage.
Dependencies are inferred from the claim text.