20.500.12556/RUL-171236 Local temperature distribution of a plate heat exchanger undergoing crystallization fouling 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. plate heat exchanger fouling crystallization infrared thermography ploščni prenosnik toplote odlaganje nečistoč kristalizacija infrardeča termografija true false true Angleški jezik Slovenski jezik Članek v reviji 2025-08-20 14:16:36 2025-08-20 14:16:42 2026-06-09 14:44:18 0000-00-00 00:00:00 2025 0 0 10 str. iss. 8, art. 68 Vol. 61 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 536.24:621.565 0947-7411 10.1007/s00231-025-03593-1 246094851 Berce_..._Local_temperature....pdf Berce_..._Local_temperature....pdf 1 45E4B9A88BD6EC3A357D3B71D78152FD c08b58de3c686d9522b208d3f55059772c0769e8bb055a4fd317fa5b5ee61495 b842f19b-7dbf-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=214403 https://link.springer.com/article/10.1007/s00231-025-03593-1 1 6f28518f-7dbf-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=214402 Fakulteta za strojništvo 0 0 0