Method for non-intrusively determining the temperature of a fluid flowing through a conduit portion

US11920965B2 · kind B2 · utility

Assignee

• ABB Schweiz AG · CH

Inventors

• Joerg Gebhardt · Mainz, DE
• Guruprasad Sosale · Munich, DE
• Andreas Decker · Besigheim, DE
• Wilhelm Daake · Petershagen, DE
• Juergen Horstkotte · Enger, DE
• Peter Ude · Hanau, DE
• Paul Szasz · Heidelberg, DE
• Ulf Ahrend · Karlsruhe, DE

Key dates

• Filing date: Sep 7, 2020
• Grant date: Mar 5, 2024
• Expiry date: May 26, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G01K13/024
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for determining a temperature of a fluid flowing through a pipe section includes: determining a temperature of the pipe section; obtaining a reference temperature at a distance from a surface of the pipe section; determining a heat transfer behaviour, in particular a thermal resistance, of a boundary layer of the fluid on an inner wall of the pipe section based on at least one material property and/or at least one value of a state variable of the fluid; and determining the temperature of the fluid based on the heat transfer behaviour of the boundary layer, a heat transfer behavior, in particular a thermal resistance, of the pipe section, the temperature of the pipe section, and the reference temperature.