Email: ziemowit.malecha@pwr.edu.pl

Unit: Faculty of Mechanical and Power Engineering » Department of Cryogenics and Aerospace Engineering

C.K. Norwida 4/6, 50-373 Wrocław
building C-6, room 214
phone +48 71 320 2320

Office hours

• Tuesday 11.00-13.00
• Wednesday 11.00-13.00

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Research fields

• numerical modeling of heat and mas transfer; definition and implementation of new mathematical and numerical models; crygenics; open source software (e.g. OpenFOAM).

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Recent papers

2018

• Sinclair C., Malecha Z. M., Jedrusyna A., Numerical investigation of potential stratification caused by a cryogenic helium spill inside a tunnel, Cryogenics, Volume 91, 2018, s. 7-20, https://doi.org/10.1016/j.cryogenics.2018.02.005, 
• Dorosz P., Wojcieszak P., Malecha Z. M., Exergetic analysis, optimization and comparison of LNG cold exergy recovery systems for transportation / Paweł Dorosz, Paweł Wojcieszak, Ziemowit Malecha. Entropy. 2018, vol. 20, nr 1, art. 59, s. 1-18, 21 rys., 8 tab., bibliogr. 41 poz. http://dx.doi.org/10.3390/e20010059, http://www.mdpi.com/1099-4300/20/1/59.

2017

• Malecha Z. M., Płuszka P., Brenk A., Numerical investigation of cryogen re-gasification in a plate heat exchanger / Ziemowit Malecha, Paweł Płuszka, Arkadiusz Brenk. W: Advances in Cryogenic Engineering : Proceedings of the Cryogenic Engineering Conference (CEC) 2017 [Dokument elektroniczny] : 9-13 July 2017, Madison, Wisconsin, USA. [Bristol : IOP Publishing, 2017]. art. 012063, s. 1-8, obj. 0,6, 9 rys., 2 tab., bibliogr. 6 poz.(IOP Conference Series - Materials Science and Engineering, ISSN 1757-899X; vol. 278), http://iopscience.iop.org/article/10.1088/1757-899X/278/1/012063/pdf, 
  Malecha Z. M., Poliński J., Chorowski M., Evaluation of the consequences of a cistern truck accident while transporting dangerous substances through a tunnel / Ziemowit M. Malecha, Jarosaw Poliski, Maciej Chorowski. Risk Analysis. 2017, vol. 37, nr 12, s. 2475-2489, 20 rys., bibliogr. 15 poz., http://dx.doi.org/10.1111/risa.12803
  Malecha Z. M, The numerical evaluation of safety valve size in the pipelines of cryogenic installations / Z. M. Malecha. W: 26th International Cryogenic Engineering Conference & International Cryogenic Materials Conference 2016 [Dokument elektroniczny] : 7–11 March 2016, New Delhi, India. [Bristol] : IOP Publishing, 2017. art. 012039, s. 1-8, obj. 0,6, 7 rys., bibliogr. 8 poz.  (IOP Conference Series - Materials Science and Engineering, ISSN 1757-899X; vol. 171), http://dx.doi.org/10.1088/1757-899X/171/1/012039
• Lubryka Eliza, Malecha Ziemowit M: The numerical boundary conditions of the wrapping pattern of thin insulation / Eliza Lubryka, Ziemowit Miłosz Malecha. International Journal of Heat and Mass Transfer. 2017, vol. 108, pt. A, s. 512-518, 7 rys., 1 tab., bibliogr. 15 poz., Summ., http://dx.doi.org/10.1016/j.ijheatmasstransfer.2016.12.050.

Papers in DONA database

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Selected papers
1	Article 2025 Ziemowit Malecha, Maciej Chorowski, Estimation of wind farm losses using a jensen model based on actual wind turbine characteristics for an offshore wind farm in the baltic sea. Computation. 2025, vol. 13, nr 1, art. 20, s. 1-16. ISSN: 2079-3197 Resources:DOIURLSFX
2	Article 2025 Wojciech Pluciński, Ziemowit Malecha, Krzysztof Tomczuk, Evaluation of the influence of temperature on the parameters of the Jiles–Atherton model and magnetization curves of a 50% Fe–Ni type alloy. Archives of Electrical Engineering. 2025, vol. 74, nr 1, s. 227-245. ISSN: 1427-4221; 2300-2506 Resources:DOIURLSFX
3	Book chapter 2024 Maciej Chorowski, Ziemowit Malecha, Granice implementacji technologii energetycznych postulowanych przez Europejski Zielony Ład. W: Drapieżny Zielony (nie) Ład / red. Artur Bartoszewicz. [Gdańsk] : TYSOL, 2024. s. 88-104. ISBN: 978-83-963709-2-1 Resources:URL
4	Proceeding paper 2024 Zbigniew Rogala, Adrian Kwiatkowski, Błażej Ł Baran, Ziemowit Malecha, Experimental validation of two-phase recuperation heat transfer in precooled MR J-T systems. W: Cryocoolers 23 : a publication of the International Cryocooler Conference, [Madison, WI, June 3-6, 2024] / ed. by Ronald G. Ross, Jr., Jeff R. Raab. Boulder : ICC Press, 2024. s. 237-246. ISBN: 978-1-934021-09-5 Resources:URL
5	Article 2024 Bartosz Kopiczak, Krzysztof Karbowski, Konrad Nering, Ziemowit Malecha, Robert Chrzan, Jolanta Gawlik, A Sucherska, Joanna Szaleniec, J Karbowski, Application of CFD airflows to aid in the diagnosis of nasal obstructions. Journal of Physics. Conference Series. 2024, vol. 2899, art. 012010, s. 1-8. ISSN: 1742-6588; 1742-6596 Resources:DOIURLSFX
6	Article 2024 Jakub Kielar, Zbigniew Rogala, Ziemowit Malecha, Błażej Ł Baran, Jarosław Poliński, Michał Stanclik, Comprehensive experimental and modeling analysis of helically-wound coiled vaporizer. Applied Thermal Engineering. 2024, vol. 257, Pt. C, art. 124407, s. 1-16. ISSN: 1359-4311; 1873-5606 Resources:DOIURLSFX
7	Article 2024 Ziemowit Malecha, Uniwersytet Harvarda i upadek standardów akademickich. Forum Akademickie. 2024, nr 9. ISSN: 1233-0930 Resources:URL
8	Article 2024 Ziemowit Malecha, Adam Sobczyk, Using artificial intelligence to predict the aerodynamic properties of wind turbine profiles. Computers. 2024, vol. 13, nr 7, art. 167, s. 1-14. ISSN: 2073-431X Resources:DOIURLSFX
9	Proceeding paper 2024 Korneliusz J Sierpowski, Wojciech Gizicki, Ziemowit Malecha, Maciej Chorowski, Optimization of thermoelectric generator power density for cryogen cold exergy recovery. W: Advances in Cryogenic Engineering: Proceedings of the Cryogenic Engineering Conference (CEC) 2023, 09-13 July 2023, Honolulu, USA. [Bristol : IOP Publishing, 2024]. art. 012169, s. 1-8. Resources:DOIURLSFX
10	Article 2024 Krzysztof M Kus, Marcin Wójcik, Ziemowit Malecha, Zbigniew Rogala, Numerical and experimental investigation of the gyroid heat exchanger. International Journal of Heat and Mass Transfer. 2024, vol. 231, art. 125882, s. 1-17. ISSN: 0017-9310; 1879-2189 Resources:DOIURLSFX

Papers in DONA database