EP 4088077 A1 20221116 - METHOD AND DEVICE FOR DETERMINING FOULING IN A HEAT EXCHANGER
Title (en)
METHOD AND DEVICE FOR DETERMINING FOULING IN A HEAT EXCHANGER
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ERMITTLUNG VON FOULING BEI EINEM WÄRMETAUSCHER
Title (fr)
PROCÉDÉ ET DISPOSITIF DE DÉTERMINATION D'ENCRASSEMENT DANS ÉCHANGEUR DE CHALEUR
Publication
Application
Priority
- EP 20161837 A 20200309
- EP 2021055563 W 20210305
Abstract (en)
[origin: WO2021180581A1] According to the invention, in order to increase accuracy in the determination of fouling in a heat exchanger (1), in which heat is transferred from a first medium (S) to a second medium (P), a value for a variable (R f ) characterizing the fouling is determined from a value for a first variable (k) influenced by the fouling and a value for a second variable (X). A change in the first variable (k) caused by a change in a flow (FS, FP) of the first medium (S) and/or of the second medium (P) through the heat exchanger (1) is at least partially compensated for by the second variable (X). The first variable can be a thermal transmission resistance or a thermal transmittance (or a thermal transmission coefficient (k-value)), wherein the first variable and the second variable are determined from values measured for temperatures and flows of the first medium and of the second medium without using material properties of the first medium and of the second medium and structural properties of the heat exchanger in the determination of the first and second variables.
IPC 8 full level
F28G 15/00 (2006.01); F22B 37/56 (2006.01)
CPC (source: EP US)
F28G 15/003 (2013.01 - EP US); F22B 37/56 (2013.01 - EP); F28F 2200/00 (2013.01 - EP)
Citation (search report)
See references of WO 2021180581A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2021180581 A1 20210916; CN 115280094 A 20221101; EP 4088077 A1 20221116; EP 4088077 B1 20231227; EP 4088077 C0 20231227; US 2023122608 A1 20230420
DOCDB simple family (application)
EP 2021055563 W 20210305; CN 202180020015 A 20210305; EP 21711796 A 20210305; US 202117910259 A 20210305