Parametric study of fluid flow and heat transfer over louvered fins of air heat pump evaporator

• Autorzy: Muszyński T. , Kozieł S. M.

Identyfikatory

DOI

10.1515/aoter-2016-0019

• Języki publikacji: EN

Abstrakty

EN

Two-dimensional numerical investigations of the fluid flow and heat transfer have been carried out for the laminar flow of the louvered fin-plate heat exchanger, designed to work as an air-source heat pump evaporator. The transferred heat and the pressure drop predicted by simulation have been compared with the corresponding experimental data taken from the literature. Two dimensional analyses of the louvered fins with varying geometry have been conducted. Simulations have been performed for different geometries with varying louver pitch, louver angle and different louver blade number. Constant inlet air temperature and varying velocity ranging from 2 to 8 m/s was assumed in the numerical experiments. The air-side performance is evaluated by calculating the temperature and the pressure drop ratio. Efficiency curves are obtained that can be used to select optimum louver geometry for the selected inlet parameters. A total of 363 different cases of various fin geometry for 7 different air velocities were investigated. The maximum heat transfer improvement interpreted in terms of the maximum efficiency has been obtained for the louver angle of 16° and the louver pitch of 1.35 mm. The presented results indicate that varying louver geometry might be a convenient way of enhancing performance of heat exchangers.

Słowa kluczowe

EN

heat exchangers; heat transfer intensification; CFD; convection; air source heat pump

PL

wymienniki ciepła; intensyfikacja wymiany ciepła; CFD; konwekcja; powietrzne pompy ciepła

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2016
• Tom: Vol. 37, no. 3
• Strony: 45--62
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Muszyński T.

• Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland

autor

Kozieł S. M.

• Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland
• Reykjavik University, Menntavegur 1, 101 Reykjavik, Iceland

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.