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UID:0-259@aerospace.technion.ac.il

DTSTART;TZID=Asia/Jerusalem:20210315T123000

DTEND;TZID=Asia/Jerusalem:20210315T133000

DTSTAMP:20230525T063523Z

URL:https://aerospace.technion.ac.il/events/on-the-operation-of-a-microjet
 -engines-vaporizer-under-steady-state-conditions/

SUMMARY:On the operation of a microjet engine's vaporizer under steady-stat
 e conditions
DESCRIPTION:Lecturer:Ori Kam\n Faculty:Department of Aerospace Engineering\
 n Institute:Technion – Israel Institute of Technology\n Location:https:/
 /technion.zoom.us/j/95787017110?pwd=WXFoN1pIZzFiaUVrcE5PallrTWpIUT09\n Zoo
 m: \n Abstract: \n Details: \n Fuel supply in microjet engines typically m
 akes use of fuel vaporizers. These have a simple design however\, their op
 eration involves complicated physics including the disintegration of liqui
 d jet under co-flowing air\, impingement of liquid jet on hot wall\, forma
 tion and motion of liquid film\, droplet splashing and fuel evaporation oc
 curring over different two-phase flow regimes. The objective of the presen
 ted study is to investigate these processes and develop physical models to
  evaluate the fuel evaporation rate. The work involved a coupled analytica
 l – experimental study of the disintegration of liquid jet\, the impinge
 ment process and the heat transfer between combustion gases and a the two 
 phase flow within a tube exposed to these gases. A major effort was invest
 ed to develop the experimental setup for these studies that included a swi
 rl stabilized kerosene fueled combustor with a crossing metal tube in whic
 h fuel and air were supplied under conditions complying with the flow in a
  typical vaporizer. The vaporization rate was measured by deducting the co
 llected fuel at the exit of the tube from the inlet flow rate after its se
 paration from the flowing gaseous phase (air &amp\; fuel vapor). The main 
 result indicated that the evaporation is very sensitive to the inlet fuel 
 to air mass flow ratio. Hence\, by modifying the fuel to air mass flow rat
 io\, one can control the vaporizer performance and improve the combustion 
 efficiency and the global engine performance.\nZoom Meeting
CATEGORIES:Seminars
LOCATION:https://technion.zoom.us/j/95787017110?pwd=WXFoN1pIZzFiaUVrcE5Pall
 rTWpIUT09

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DTSTART:20201025T010000

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