Patent · US Active

Monitoring of heat exchangers in process control systems

US8069003B2 · kind B2 · utility

3Cited by

5References

12Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Michael Friedrich · Frankfurt, DE
Herbert Grieb · Malsch, DE
Thomas Müller-Heinzerling · Blankenloch, DE
Bernd-Markus Pfeiffer · Nieheim, DE
Michael S. Schuler · Lockport, US

Key dates

Filing date	May 29, 2009
Grant date	Nov 29, 2011
Priority date	—
Expiry date	Feb 20, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF28F2200/00
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A method for monitoring the efficiency of a heat exchanger is provided. Heat flows from a first medium into a second medium and an actual heat flow is detected and compared with at least one reference heat flow corresponding to a respectively predetermined degree of soiling of the heat exchanger. Furthermore, a device for controlling a plant having at least one heat exchanger is described. The plant has a storage device storing at least one reference heat flow of the heat exchanger.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.