Numerical analysis of oil combustion in a small combustion device

Matej Zadravec; Boštjan Rajh; Niko Samec; Matjaž Hriberšek

doi:10.18690/analipazu.4.1.41-50.2014

Matej Zadravec aculty of Mechanical Engineering, University of Maribor, Smetanova 17, 2000 Maribor, Slovenia https://orcid.org/0000-0002-8749-8715
Boštjan Rajh EnerB d.o.o., Hmeljarska ulica 7, 3310 Žalec, Slovenia. https://orcid.org/0000-0002-3147-4773
Niko Samec Faculty of Mechanical Engineering, University of Maribor, Smetanova 17, 2000 Maribor, Slovenia. https://orcid.org/0000-0001-8500-5393
Matjaž Hriberšek Faculty of Mechanical Engineering, University of Maribor, Smetanova 17, 2000 Maribor, Slovenia. https://orcid.org/0000-0002-4900-5000

DOI: https://doi.org/10.18690/analipazu.4.1.41-50.2014

Keywords: oil burner, oil combustion, multicomponent reactive flow, computational fluid dynamics (CFD), model validation

Abstract

This paper focuses on the numerical analysis of the combustion of the liquid fuel Extra Light Fuel Oil (ELFO) in a small combustion device. The calculation was performed by ANSYS CFX computer code for experimental optimal air-fuel ratio (λopt) and the middle power of the oil burner Weishaupt WL5/1-A (37 kW). The goal of the numerical analysis was to establish, whether the experimentally determined λopt ensured the conditions for a complete combustion in each point of the combustion chamber. The comparison of numerical results and measured values confirm the suitability of the chosen numerical model.

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Author Biographies

Matej Zadravec, aculty of Mechanical Engineering, University of Maribor, Smetanova 17, 2000 Maribor, Slovenia

Maribor, Slovenia. E-mail: matej.zadravec@um.si

Boštjan Rajh, EnerB d.o.o., Hmeljarska ulica 7, 3310 Žalec, Slovenia.

Žalec, Slovenia. E-mail: bostjan.rajh@enerbee.eu

Niko Samec, Faculty of Mechanical Engineering, University of Maribor, Smetanova 17, 2000 Maribor, Slovenia.

Maribor, Slovenia. E-mail: niko.samec@um.si

Matjaž Hriberšek, Faculty of Mechanical Engineering, University of Maribor, Smetanova 17, 2000 Maribor, Slovenia.

Maribor, Slovenia. E-mail: matjaz.hribersek@um.si