System for measuring fluid flow in a fluid passage of an HVAC system
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United States of America Patent
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Oct 10, 2017
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N/A
app pub date -
Dec 23, 2015
filing date -
Jul 11, 2012
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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.
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