Research methods in the study of heat transfer coefficient during flow in minichannels

• Autorzy: Tychanicz-Kwiecień Maria , Grosicki Sebastian

Identyfikatory

DOI

10.30464/jmee.2021.5.1.59

• Języki publikacji: EN

Abstrakty

EN

The paper presents the specification of research methods commonly encountered in the studies of heat transfer processes in minichannels. In particular the following methods have been emphasized: electrochemical limiting current method as well as the thermal balance method. In thermal balance method the mean heat transfer coefficient is determined by the set of experimental thermal measurements of the investigated heat exchanger. In turn, limiting current method is based on heat and mass transfer analogy. The discussed research methods have been implemented on two specially designed and constructed test facilities with compact minichannel heat exchangers, which have been presented and described in details. In order to validate the designed setup, the preliminary experimental measurements of two minichannel heat exchangers with hydraulic diameter of 2 mm and rectangular cross sections during single-phase liquid flows have been carried out. In further perspective it is planned to extend the experimental studies of minichannel heat exchangers and to compare the results obtained by both methods described.

Słowa kluczowe

EN

heat transfer coefficient; minichannels; heat and mass transfer analogy; limiting current technique; thermal balance method

PL

współczynnik przenikania ciepła; minikanały; analogia wymiany ciepła i masy; prąd graniczny; bilans cieplny

• Wydawca: Wydawnictwo Uczelniane Politechniki Koszalińskiej
• Czasopismo: Journal of Mechanical and Energy Engineering
• Rocznik: 2021
• Tom: Vol. 5, No 1
• Strony: 59--67
• Opis fizyczny: Bibliogr. 20 poz., rys., tab., wykr.

Twórcy

autor

Tychanicz-Kwiecień Maria

• The Faculty of Mechanical Engineering and Aeronautics, Department of Thermodynamics, Rzeszów University of Technology, al. Powstańców Warszawy 8, 35-959 Rzeszów, Poland

• https://orcid.org/0000-0003-4312-2772

autor

Grosicki Sebastian

• The Faculty of Mechanical Engineering and Aeronautics, Department of Thermodynamics, Rzeszów University of Technology, al. Powstańców Warszawy 8, 35-959 Rzeszów, Poland

• https://orcid.org/0000-0001-8453-7101

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).