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Title: Thermal performance of micro-combustors with baffles for thermophotovoltaic system
Authors: Jiang, D.
Yang, W. 
Chua, K.J. 
Ouyang, J. 
Keywords: Emitter efficiency
Flame stability
Heat recovery
Micro combustion
Issue Date: 2013
Citation: Jiang, D., Yang, W., Chua, K.J., Ouyang, J. (2013). Thermal performance of micro-combustors with baffles for thermophotovoltaic system. Applied Thermal Engineering 61 (2) : 670-677. ScholarBank@NUS Repository.
Abstract: This paper presents a hydrogen-fueled micro-combustion system for thermophotovoltaic application. The thermal performances of the micro-combustor with and without baffles have been investigated numerically and experimentally. Dimensionless height λ and distance δ are defined to determine the optimal height and location of the baffles. The highest combustion efficiency is achieved when δ and λ are 0.3 and 0.9, respectively. The blowout limit is extended for the combustors with baffles. Besides, the heat from exhaust gas is recycled to preheat the fresh H2-air mixture, thereby increasing the mean wall temperature. A high H2-air mass flow rate will increase the fresh gas temperature but lead to low heat recovery rate. © 2013 Elsevier Ltd. All rights reserved.
Source Title: Applied Thermal Engineering
ISSN: 13594311
DOI: 10.1016/j.applthermaleng.2013.08.044
Appears in Collections:Staff Publications

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