کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1276378 | 1497555 | 2012 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The influence of diaphragm rupture rate on spontaneous self-ignition of pressurized hydrogen: Experimental investigation The influence of diaphragm rupture rate on spontaneous self-ignition of pressurized hydrogen: Experimental investigation](/preview/png/1276378.png)
Influence of rupturing process on a diffusion self-ignition of hydrogen was studied experimentally at a pulse discharge into an open channel filled with air. Self-ignition of hydrogen occurred at a contact surface of the jet of hydrogen. Required temperatures for self-ignition were reached due to heating the air by a shock wave which appears as a result of the non-stationary discharge of hydrogen from the high pressure vessel. Initial pressure of hydrogen was varied from 3 to 14 MPa. Rupture duration of a diaphragm was measured. Rupture rate of the diaphragm was determined by an intensity of light, passing through the diaphragm. Formation of a shock wave flow structure at the pulse discharge of compressed hydrogen into the channel with air was studied, and ignition delays of hydrogen were determined. Correlation between rupture duration of the diaphragm and ignition delays are given. Comparison of experimental results with the previous numerical ones was carried out.
► Experimental setup like a shock tube is described.
► Rapture duration of a diaphragm was measured. Initial pressure of hydrogen was 3–14 MPa
► Formation of a shock wave flow structure was studied.
► Ignition delays of hydrogen were determined.
► Comparison of obtained experimental results with the previous numerical ones was carried out.
Journal: International Journal of Hydrogen Energy - Volume 37, Issue 14, July 2012, Pages 10956–10962