CAJ | 학술논문

贫油预混预蒸发（LPP）技术是目前最具发展前景的低污染燃烧技术，可实现很低的NO2排放。本文采用FLU-ENT软件，对一种模型低污染燃烧室（采用LPP燃烧技术）进行三维两相数值模拟计算分析。研究了模型燃烧室的流场结构、流量分配、回流特性、雾化特性和燃烧性能，并对NO2排放进行了预测。结果表明，模型燃烧室流场中存在与TAPS燃烧室相似的三个涡结构，流量分配与试验吻合良好，雾化特性良好并具有较好的温度场和低的NO2排放。
빈유예혼예증발（LPP）기술시목전최구발전전경적저오염연소기술，가실현흔저적NO2배방。본문채용FLU-ENT연건，대일충모형저오염연소실（채용LPP연소기술）진행삼유량상수치모의계산분석。연구료모형연소실적류장결구、류량분배、회류특성、무화특성화연소성능，병대NO2배방진행료예측。결과표명，모형연소실류장중존재여TAPS연소실상사적삼개와결구，류량분배여시험문합량호，무화특성량호병구유교호적온도장화저적NO2배방。
The Lean Premixed Prevaporized （LPP） technology is the most promising low emission technolo- gy in aero-engine combustor design, which makes the emission level of pollutant NOx very low. Three-di- mensional non-reactive and reactive flow in a LPP model combustor was studied numerically by using FLU- ENT software, involving the structure of recirculation zone, characteristics of recirculation flow and atomiza- tion, performances of combustion and NOx emission forecast. The results indicated that recirculation zone had three vortexes as the same as TAPS combustor, mass-flow distribution agreed well with experimental data, the performances of atomization and combustion were fine, and the emission level of pollutant NOx was low.