Numerical simulation of plane cell micro-combustor with preheating channels
1.School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.Technical and Research Center of Fluid Machinery Engineering of Jiangsu, Zhenjiang, Jiangsu 212013, China; 3.California State Polytechnic University, Los Angeles, California CA91768, USA)
Abstract：In order to improve the total transition efficiency and workability of plane cell micro-thermophotovoltaic system, a new plane cell micro-combustor with preheating channels is designed. Numerical simulation is used to predict the temperature distribution of inner combustor, emitter wall and outlet section with and without preheating channels while the inlet equivalence ratio of hydrogen and oxygen is 1.00 and volume flux is 1 500 mL／min. The results show that hydrogen and oxygen can fully mix in the two combustors and realize stable combustion. The use of preheating channels can improve combustion effect by increasing the enthalpy of fuel and oxidant, and finally increase the average temperature of the emitter wall by 105 K which is highly favourable to the increase of power output and photoelectric transition efficiency.
2011, Vol. 32 
