Research on Fuel Flow Measurement Based on Micro Pressure Difference

摘要：

The closed-loop control of fuel supply for MTE ( micro turbine engine ) requires precise fuel flow measurement which leads to small pressure loss. A measuring method based on the detection of micro pressure difference is proposed. The measuring device is composed of pressure difference sensor, cylindrical containers, and metering section. The structure of metering section is of two kinds: tube structure and orifice plate structure. For tube structure, fluid flow is linear with pressure difference. For orifice plate structure, fluid flow is linear with the square root of pressure difference. The measuring principles, structure design of the two kinds of metering section are put forward. And the advantages and disadvantages of them are discussed as well. At last, the calibration tests of the two kinds of measuring device are carried out. The test results show that the measuring method is fit for fuel flow measurement of MTE startup process.

关键词： fuel flow measurement micro turbine engine pressure difference metering section orifice plate

作者: Jianguo Xu Tianhong Zhang Feng Gao

作者单位: College of Energy and Power Engineering NUAA Nanjing, China

会议类型: 国际会议

会议名称: The 3rd International Symposium on Jet Propulsion and Power Engineering(第三届喷气推进与动力工程国际会议 ISJPPE)

会议地点: 南京

会议语种:英文

页码: 620-624

在线出版日期: 2010-09-13（万方平台首次上网日期，不代表论文的发表时间）