Numerical modeling of heat transfer in Al2O3/H2O nanofluid flowing through a Bessel-like converging pipe

• Autorzy: Iweka Chukwuka S. , Fadodun Olatomide G.

Identyfikatory

DOI

10.24425/ather.2021.137557

• Języki publikacji: EN

Abstrakty

EN

This paper studies hydrodynamic and heat transfer performance of Al2O3/H2O nanofluid flowing through a Bessel-like converging pipe in laminar flow regime using the computational fluid dynamic approach. A parametric study was carried out on the effect of Reynolds number (300– 1200), convergence index (0-3) and nanoparticle concentration (0–3%) on the both hydrodynamic and thermal fields. The results showed the pressure drop profile along the axial length of the converging pipes is parabolic compared to the downward straight profile obtained in a straight pipe. Furthermore, an increase in convergence index, Reynolds number and nanoparticle concentration were found to enhance convective heat transfer performance. Also, a new empirical model was developed to estimates the average Nusselt number as a function of aforementioned variables. Finally, the result of the thermohydraulic performance evaluation criterion showed that the usage of Bessel-like converging pipes is advantageous at a low Reynolds number.

Słowa kluczowe

EN

nanofluid; Nusselt number; response surface methodology; Reynolds number; convergence; index

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2021
• Tom: Vol. 42, no 2
• Strony: 121--153
• Opis fizyczny: Bibliogr. 48 poz., rys., tab., wykr., wz.

Twórcy

autor

Iweka Chukwuka S.

• Department of Mechanical Engineering, Delta State Polytechnic, Ozoro, P.M.B 5, Ozoro 334111, Delta State, Nigeria

autor

Fadodun Olatomide G.

• Centre for Energy Research and Development, Obafemi Awolowo University, Ile-Ife 220282, Osun State, Nigeria

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Uwagi

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