Local temperature distribution of a plate heat exchanger undergoing crystallization fouling

Berce, Jure (avtor), Zupančič, Matevž (avtor), Može, Matic (avtor), Golobič, Iztok (avtor)

The compact design of plate heat exchangers prevents local insights during system operation, which would be desired when designing for and evaluating a given fouling problem. Severe foulant build-up is often confined to specific regions within the flow channel geometry and could be mitigated to an extent by managing the distribution of flow if areas with high susceptibility towards fouling could be identified. We conducted laboratory crystallization fouling experiments on a counter-current brazed plate heat exchanger, coupling real-time measurements of flow rates and temperatures with infrared thermography. This non-intrusive method of spatiotemporal plate temperature characterization allowed local detection and evaluation of severely fouled areas within the upper channel. In the investigated case, the highest susceptibility towards salt crystallization was observed in the flow stagnation zone near the hot outlet, where the largest temperature gradient between both fluids was present and the driving supersaturation was largest. Apart from its use in future plate heat exchanger design, the presented approach can be coupled with computational fluid dynamics simulations, as was illustrated in this work.

• Jezik: Angleški jezik
• Ključne besede: plate heat exchanger, fouling, crystallization, infrared thermography
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2025
• Št. strani: 10 str.
• Številčenje: Vol. 61, art. 68
• PID: 20.500.12556/RUL-171236
• UDK: 536.24:621.565
• ISSN pri članku: 0947-7411
• DOI: 10.1007/s00231-025-03593-1
• COBISS.SI-ID: 246094851
• Datum objave v RUL: 20.08.2025

Gradivo je del revije

• Naslov: Heat and mass transfer
• Skrajšan naslov: Heat mass transf.
• Založnik: Springer, Springer-Verl. New York
• ISSN: 0947-7411
• COBISS.SI-ID: 2053915

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: ploščni prenosnik toplote, odlaganje nečistoč, kristalizacija, infrardeča termografija

Projekti

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Številka projekta: P2-0223
• Naslov: Prenos toplote in snovi

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Številka projekta: J2-50085
• Naslov: Raziskave medfaznih pojavov kapljic in mehurčkov na funkcionaliziranih površinah ob uporabi napredne diagnostike za razvoj okoljskih tehnologij prihodnosti in izboljšanega prenosa toplote (DroBFuSE)