SYSTEM FOR GAS DISTRIBUTION AND MASS FLOW MEASUREMENT

A gas distribution system may include a gas mass flow sensor (206, 506) with a resistive element (230) configured to be heated, a thermally conductive shell (228, 528) surrounding the resistive element and heat-transfer control elements. The shell may include a leading surface (236, 536) oriented su...

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Bibliographic Details
Main Authors FACINELLI, William, KANG, Alan, SHEORAN, Yogendra Yogi, EARL, Andrew, ISOBE, Jun
Format Patent
LanguageEnglish
French
German
Published 11.07.2018
Subjects
MEASURING
MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL
METERING BY VOLUME
PHYSICS
TESTING
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Summary:A gas distribution system may include a gas mass flow sensor (206, 506) with a resistive element (230) configured to be heated, a thermally conductive shell (228, 528) surrounding the resistive element and heat-transfer control elements. The shell may include a leading surface (236, 536) oriented substantially orthogonal to a direction of gas flow. At least one thermal insulator (244, 550) is positioned on a non-leading surface (240, 242, 540, 542, 552) of the shell to focus heat transfer from the resistive element through the leading surface of the shell, so that a rate of heat transfer is independent from the variations in flow configuration. Flow guidance elements (534) may additionally be positioned to provide a flow path focused on the leading surface of the shell.
Bibliography:Application Number: EP20160153442