Process and apparatus for the combustionless measurement and/or control of the amount of heat fed to gas consumption devices

US4384792A · kind A · utility

Assignee

• Ruhrgas Aktiengesellschaft · DE

Inventors

• Hans Sommers
• Wilhelm Korsmeier · Recklinghausen, DE
• Friedrich Vissel · Recklinghausen, DE

Key dates

• Filing date: Jul 17, 1980
• Grant date: May 24, 1983
• Expiry date: Jul 17, 2000

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N33/225
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A process and apparatus for the combustion-less measurement and/or regulation of the feeding of quantities of heat to gas combustion devices, particularly natural-gas combustion devices. A fuel gas or a partial stream of the fuel gas is fed through a fuel gas line containing at least one flow resistor which produces a laminar flow and a pressure drop. The gas volume flow and/or the pressure drop over at least one flow resistor is measured by a volume flow metering device and a difference pressure regulator, respectively, the pressure drops and/or volume flows which are not measured being maintained constant. A device compensates for the influence of temperature on the system is compensated. The measured value(s) in accordance with the formula described in the specification EQU f (H)= EQU a+b.multidot.n.sup.c .multidot..rho..sup.d is a measure of the heat content of the flowing gas and results in a signal which serves for measurement and/or regulation.