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UID:0-282@aerospace.technion.ac.il

DTSTART;TZID=Asia/Jerusalem:20200930T163000

DTEND;TZID=Asia/Jerusalem:20200930T173000

DTSTAMP:20230525T070835Z

URL:https://aerospace.technion.ac.il/events/a-diesel-engine-with-a-catalyt
 ic-piston-surface-to-propel-small-aircraft-at-high-altitudes-a-theoretical
 -study/

SUMMARY:A Diesel Engine with a Catalytic Piston Surface to Propel Small Air
 craft at High Altitudes – A Theoretical Study
DESCRIPTION:Lecturer:Kadmiel Karsenty\n Faculty:Department of Aerospace Eng
 ineering\n Institute:Technion – Israel Institute of Technology\n Locatio
 n:https://technion.zoom.us/j/94169102438\n Zoom: \n Abstract: \n Details: 
 \n There has recently been a large increase in development activities of r
 emotely-controlled and autonomous miniature aerial vehicles (MAV). Militar
 y\, scientific\, law enforcement and mapping usage are among the important
  potential applications that motivate this effort. Another promising area 
 is remote observation of hazardous environments which are hard or inaccess
 ible to ground vehicles. Among the more severe limiting factors of the MAV
  development are the engine thermal efficiency and its performance degrada
 tion at high altitudes.\nIn this work we propose a unique method to extend
  the upper-limit altitude with no noticeable extra weight. We propose a sp
 ecial in-cylinder steam reforming approach to significantly increase the e
 ngine efficiency at high altitudes\, thus allowing engine operation at hig
 her altitudes with a negligible weight penalty. The gain in the engine per
 formance at high altitude is attributed to the present unique method of in
 ternal heat recovery (in-cylinder steam reforming) by which a wider flamma
 bility and higher burning velocity are achievable. In the present research
  we analyze the effect of the in-cylinder steam reforming process on the e
 ngine performance at high altitude. The results of the research show that 
 by the employment of the internal steam reforming concept in internal comb
 ustion engines (in either 2- or 4-stroke engines)\, it is possible to incr
 ease the indicated efficiency and engine brake power and therefore decreas
 e the fuel consumption. Moreover\, due to the higher in-cylinder pressure 
 without an increase in the temperature\, the cycle effectiveness is higher
  while keeping the same amount of NOx emission.\nZoom Meeting
CATEGORIES:Seminars
LOCATION:https://technion.zoom.us/j/94169102438

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