TY  - CONF
N2  - 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.
N1  - cited By 7; Conference of 7th International Conference on Applied Energy, ICAE 2015 ; Conference Date: 28 March 2015 Through 31 March 2015; Conference Code:114863
KW  - Conversion efficiency; Energy conversion; Energy efficiency; Heat flux; Heat transfer; Numerical models; Turbulence models
KW  -  curvature; Micropower generation; Photovoltaics; Reynolds; Wall temperatures
KW  -  Combustors
ID  - scholars6223
TI  - Numerical Investigation of H2-air Premixed Combustion in a Curved Micro-combustor for Thermo-photovoltaic (TPV) Applications
SP  - 3060
AV  - none
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84947125227&doi=10.1016%2fj.egypro.2015.07.626&partnerID=40&md5=a9e19fe55670315f457eed3247195b93
A1  - Akhtar, S.
A1  - Khan, M.N.
A1  - Kurnia, J.C.
A1  - Shamim, T.
VL  - 75
EP  - 3065
Y1  - 2015///
SN  - 18766102
PB  - Elsevier Ltd
ER  -