relation: https://khub.utp.edu.my/scholars/6223/ title: Numerical Investigation of H2-air Premixed Combustion in a Curved Micro-combustor for Thermo-photovoltaic (TPV) Applications creator: Akhtar, S. creator: Khan, M.N. creator: Kurnia, J.C. creator: Shamim, T. description: Energy conversion efficiency of a thermo photo voltaic (TPV) system strongly depends on the wall temperature and its uniformity. Therefore, improving heat transfer characteristics of these systems is a focus of many recent studies. Significant efforts have been devoted to investigate flame stabilization and heat transfer enhancement for straight channels; planar and circular. However, the investigation of the impact of curvature on heat transfer and flow characteristics of a reacting flow is limited, implying that more studies are required. This study explores the effect of curvature on heat transfer, pressure drop and emission levels for a circular micro-combustor with sudden expansion (backward facing step). The study uses steady state Reynolds Average Numerical Simulation (RANS) turbulence model along with a finite rate chemistry model to numerically investigate the flame structure inside a micro-combustor. The investigation observes significant enhancement in outer wall temperature and heat flux for curved ducts as compared to those for straight channels. © 2015 The Authors. Published by Elsevier Ltd. publisher: Elsevier Ltd date: 2015 type: Conference or Workshop Item type: PeerReviewed identifier: Akhtar, S. and Khan, M.N. and Kurnia, J.C. and Shamim, T. (2015) Numerical Investigation of H2-air Premixed Combustion in a Curved Micro-combustor for Thermo-photovoltaic (TPV) Applications. In: UNSPECIFIED. relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84947125227&doi=10.1016%2fj.egypro.2015.07.626&partnerID=40&md5=a9e19fe55670315f457eed3247195b93 relation: 10.1016/j.egypro.2015.07.626 identifier: 10.1016/j.egypro.2015.07.626