摘要
高原环境下大气压力降低,影响火焰形态变化。在低气压舱内,对大气压力在0.05~0.10MPa环境压力下进行了柴油喷雾燃烧实验。采用摄影法记录火焰变化,采用Matlab对火焰视频处理,对其火焰长度、宽度,抬升特性及脉动频率进行分析。得到不同低压环境下水平喷雾燃烧火焰形态的变化规律,并发现在低压环境下浮力对火焰末端抬升特性影响明显。
In the plateau,lower atmospheric pressure affect the change of flame shape.In the hypobaric chamber（0.05-0.10 MPa）,diesel spray combustion experiment was carried out.Photography method is used to record the change of the flame,and the flame video was disposed by Matlab.the flame length,width,lifting characteristics and pulsation frequency were analyzed. Under different subatmospheric pressure conditions,the varying laws of flame morphology of horizontal jet spray combustion were found, and buoyancy has a significant effect on flame lifting characteristics of flame extreme at subatmospheric pressures.
作者
谢凯
仇性启
崔运静
XIE Kai;QIU Xingqi;CUI Yunjing(School of Chemical Engineering,China University of Petroleum,Qingdao 266555,China;School of Mechatronie Engineering,China University of Petroleum,Qingdao 266555,China)
出处
《工业加热》
CAS
2018年第3期8-12,共5页
Industrial Heating
基金
国家重点研发计划-高原高寒地区主食加工方舱研发与应用示范(2017YFC0806303)
关键词
高原
喷雾燃烧
火焰形态
浮力抬升
plateau
spray burning
flame morphology
buoyancy lift
