N2 - Analysis of the state of-the-art in research of minichannel heat exchangers, especially on the topic of flow maldistribution in multiple channels, has been accomplished. Studies on minichannel plate heat exchanger with 51 parallel minichannels with four hydraulic diameters, i.e., 461 μm, 574 μm, 667 μm, and 750 μm have been presented. Flow at the instance of filling the microchannel with water at low flow rates has been visualized. The pressure drop characteristics for single minichannel plate have been presented along with the channels blockage, which occurred in several cases. The impact of the mass flow rate and channels’ cross-section dimensions on the flow maldistribution were illustrated. L1 - http://www.czasopisma.pan.pl/Content/105650/PDF/08_paper.pdf L2 - http://www.czasopisma.pan.pl/Content/105650 PY - 2017 IS - No 3 EP - 148 DO - 10.1515/aoter-2017-0020 KW - pressure drop KW - minichannel KW - plate KW - heat exchanger KW - flow maldistribution KW - channel blockage A1 - Dąbrowski, Paweł A1 - Mikielewicz, Dariusz A1 - Klugmann, Michał PB - The Committee of Thermodynamics and Combustion of the Polish Academy of Sciences and The Institute of Fluid-Flow Machinery Polish Academy of Sciences DA - 2017 T1 - Selected studies of flow maldistribution in a minichannel plate heat exchanger SP - 135 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/105650 T2 - Archives of Thermodynamics