Combustion characteristics of biodiesel saturated with pyrolysis oil for power generation in gas turbines |
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| Affiliation: | 1. Cardiff University, Queen''s Building, Cardiff, CF24 3AA, United Kingdom;2. ENEA, Rotondella, Italy;3. Kerbela University, College of Engineering, Mechanical Department, Kerbela, Iraq;4. Università degli studi di Napoli “Federico II”, Italy;1. Institut national de la recherche scientifique, Centre Eau Terre Environnement, 490 rue de la Couronne, Québec, QC, G1K 9A9, Canada;2. Département de génie mécanique, École de Technologie Supérieure, 1100 rue Notre-Dame Ouest, Montréal, QC, H3C 1K3, Canada;1. Department of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, PR China;2. Zhejiang Tianneng Energy Technology Co., Ltd., Changxing County, Zhejiang Province 313100, PR China;1. Department of Electrical Engineering, College of Engineering, King Saud University, Riyadh, 11421, Saudi Arabia;2. Electrical & Computer Engineering, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada;1. Faculty of Engineering, Department of Electrical Engineering, Bu-Ali Sina University, Hamedan, Iran;2. Faculty of Engineering, Department of Electrical Engineering, Ayatollah Borujerdi University, Broujerd, Iran;1. School of Engineering, University of Portsmouth, UK;2. Fluid Structure Interaction Research Group, Faculty of Engineering and the Environment, University of Southampton, UK |
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| Abstract: | There is a perceived need for multi-fuel burner geometries capable of operating with variable composition fuels from diverse sources to achieve fuel flexibility in gas turbines. The objective of the research covered herein is a comparison study between two liquid fuels, a biodiesel (in a pure form) and the biodiesel as a saturated mixture with a pyrolysis by-product; these two fuels were compared against a standard kerosene as a baseline. The research methodology involved two stages: firstly atomization patterns and injection regimes were obtained using a high speed imaging method, secondly a combustion test campaign was undertaken using a swirl burner to quantify the operational behaviour, species production and exhaust gas compositions of the fuels. Emissions, flame stability trends and power outputs were measured at gas turbine relevant equivalence ratios. Excess oxygen and atomization trends in the biodiesel seem to be playing a major role in the production of emissions and flame stability when compared to kerosene. Also, heavy organics seem to be acting as catalytic substances for OH production close to the burner mouth. In terms of stability and combustion, it is proposed that the saturated blend would be a viable candidate for power generation. |
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| Keywords: | Atomization Combustion Gas turbine Biodiesel |
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