Characteristics of countercurrent flow heat exchangers

• Autorzy: Adamski M.
• Języki publikacji: EN

Abstrakty

EN

The paper includes equations described heat exchange in countercurrent flow heat exchangers. Taking the energy balance formula as a basis and dividing the heat exchanger into sections, the thermal balances of the cooled fluid, plate and heated fluid are prepared and pertinent system of three differential equations is derived. The E-NTU method is used in the analysis. Exemplary temperature profiles in steady state conditions are presented in a graphic form. Transfer functions and dynamic characteristic are determined. Response on step disturbance of inlet temperature is found. Responses on step or on sin disturbance of inlet temperature in steam condensation heat exchangers are found. The results of calculations are presented in a graphic form.

Słowa kluczowe

EN

heat exchanger; thermal balance; temperature profile; transfer function

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2007
• Tom: Vol. 2, no 1
• Strony: 29--36
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Adamski M.

• Białystok Technical University ul. Wiejska 45E, 15-351 Białystok, Poland tel.: [phone], fax [phone],

Bibliografia

• [1] Adamski, M., Theoretical characteristics of plate heat exchangers, VII Internationales Symposium: Wärmeaustausch und Erneuerbare Energiequellen, Polnische Akademie der Wissenschaften, Technische Universität Szczecin, Szczecin 1998, pp. 9 -16.
• [2] Chmielnicki, W., Zawada, B., Właściwości dynamiczne przepływowych wymienników ciepła, Nowa technika w InŜ. San., Ogrzewnictwo i Wentylacja Nr 14, Arkady, Warszawa 1982.
• [3] Żelazny, M., Podstawy automatyki, PWN, Warszawa 1976.