CAJ | 학술논문

对熔融碳酸盐燃料电池/微型燃气轮机(MCFC/MGT)混合动力系统中的催化燃烧室进行了实验和理论分析,确定了燃烧室入口温度、燃料浓度对燃料转化率的影响,在非设计工况下运行时催化燃烧室入口条件会发生变化,应用数学模型分析了各主要因素对催化燃烧室运行特性的影响.结果表明,计算结果与实验结果的最大误差在4 %以内.在混合动力系统的运行范围内催化燃烧室入口温度高于770 K时燃料转化率达99 %以上,而入口流速和燃料浓度的变化对转化率的影响不明显.
대용융탄산염연료전지/미형연기륜궤(MCFC/MGT)혼합동력계통중적최화연소실진행료실험화이론분석,학정료연소실입구온도、연료농도대연료전화솔적영향,재비설계공황하운행시최화연소실입구조건회발생변화,응용수학모형분석료각주요인소대최화연소실운행특성적영향.결과표명,계산결과여실험결과적최대오차재4 %이내.재혼합동력계통적운행범위내최화연소실입구온도고우770 K시연료전화솔체99 %이상,이입구류속화연료농도적변화대전화솔적영향불명현.
An experimental and theoretical analysis was conducted of a catalytic combustor in a melted carbonate fuel cell/micro gas turbine(MCFC/MGT)hybrid power system. Through an experimental analysis,determined was the influence of the inlet temperature and fuel concentration of the combustor on the fuel conversion rate,and in the meantime the correctness of the mathematical model being used was also verified. When the hybrid power system is operating at off-design conditions,the inlet condition of its catalytic combustor may undergo a change. A mathematical model was used to analyze the influence of various main factors on the operation characteristics of the catalytic combustor. The research results show that the maximal error between the calculated results and the test ones is within a range of 4%. In the operation range of the hybrid power system,the catalytic combustor can always maintain a high fuel conversion rate,being invariably over 99% when the inlet temperature is higher than 770 K. The change of the inlet flow speed and fuel concentration has no conspicuous influence on the fuel conversion rate. It is feasible to use the catalytic combustor for the hybrid power systems.