What flame is SpaceX's Hans Koenigsmann describing in his presentation?

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











up vote
1
down vote

favorite












At 35:46 in part 1 of this recording of SpaceX's Hans Koenigsmann's talk at IAC 2018, he says something like:




The green stuff that you see is TEA-TEB, that’s the ignition fluid that they use.



The flame that goes a little bit like up and down, that’s the xxx; the yyy flame. The main flame just goes straight down.




What are the terms represented here as xxx and yyy? If the terms are not obvious, a little further explanation is appreciated.











spacex falcon-9 merlin-1d exhaust







share|improve this question























  • Possibly related flames: Why are exhaust flames “jumping around” the bases of the Falcon-9 engine nozzles; NROL-76?
    – uhoh
    2 hours ago














up vote
1
down vote

favorite












At 35:46 in part 1 of this recording of SpaceX's Hans Koenigsmann's talk at IAC 2018, he says something like:




The green stuff that you see is TEA-TEB, that’s the ignition fluid that they use.



The flame that goes a little bit like up and down, that’s the xxx; the yyy flame. The main flame just goes straight down.




What are the terms represented here as xxx and yyy? If the terms are not obvious, a little further explanation is appreciated.











spacex falcon-9 merlin-1d exhaust







share|improve this question























  • Possibly related flames: Why are exhaust flames “jumping around” the bases of the Falcon-9 engine nozzles; NROL-76?
    – uhoh
    2 hours ago












up vote
1
down vote

favorite









up vote
1
down vote

favorite











At 35:46 in part 1 of this recording of SpaceX's Hans Koenigsmann's talk at IAC 2018, he says something like:




The green stuff that you see is TEA-TEB, that’s the ignition fluid that they use.



The flame that goes a little bit like up and down, that’s the xxx; the yyy flame. The main flame just goes straight down.




What are the terms represented here as xxx and yyy? If the terms are not obvious, a little further explanation is appreciated.











spacex falcon-9 merlin-1d exhaust







share|improve this question















At 35:46 in part 1 of this recording of SpaceX's Hans Koenigsmann's talk at IAC 2018, he says something like:




The green stuff that you see is TEA-TEB, that’s the ignition fluid that they use.



The flame that goes a little bit like up and down, that’s the xxx; the yyy flame. The main flame just goes straight down.




What are the terms represented here as xxx and yyy? If the terms are not obvious, a little further explanation is appreciated.



















spacex falcon-9 merlin-1d exhaust




spacex falcon-9 merlin-1d exhaust






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 2 hours ago

























asked 2 hours ago









uhoh

29k1598358




29k1598358











  • Possibly related flames: Why are exhaust flames “jumping around” the bases of the Falcon-9 engine nozzles; NROL-76?
    – uhoh
    2 hours ago
















  • Possibly related flames: Why are exhaust flames “jumping around” the bases of the Falcon-9 engine nozzles; NROL-76?
    – uhoh
    2 hours ago















Possibly related flames: Why are exhaust flames “jumping around” the bases of the Falcon-9 engine nozzles; NROL-76?
– uhoh
2 hours ago




Possibly related flames: Why are exhaust flames “jumping around” the bases of the Falcon-9 engine nozzles; NROL-76?
– uhoh
2 hours ago










1 Answer
1






active

oldest

votes

















up vote
3
down vote













The jumping flame was the gas generator exhaust.



You can see that as the bronze-ish coloured smaller cylinder on the side of the engine in this picture of Merlin 1D engines in the factory.



Merlin 1Ds on the factory floor



You can see how it changes in size and shape from the Merlin 1C in this image:



Merlin 1C



This is really obvious on the last Falcon 1, which used a Merlin 1C but was never flown, and recently was moved from storage to the Hawthorne factory, and there is a great shot of the F1 next to the F9 on display.



F1 next to F9 display



The Merlin engine burns fuel/oxidizer in a separate combuster, whose output/power is used to run the fuel pump.



Rockets needs gobs and gobs of fuel/oxidizer at rates that are astonishing. The SSME on the Space Shuttle high pressure turbo pump put out 23,260 hp (17.34 MW) of power. That is a lot.



The Merlin has about 1/3 the total thrust of the SSME, but uses denser fuels and a single turbo pump for both fuel and oxidizer but still needs to move a lot of liquids very quickly.



On the Merlin, the exhaust is vented over the side from the gas generator. That is the flame you are seeing.






share|improve this answer






















  • ah, "gg" = gas generator. Thanks!
    – uhoh
    1 hour ago










Your Answer




StackExchange.ifUsing("editor", function ()
return StackExchange.using("mathjaxEditing", function ()
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix)
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
);
);
, "mathjax-editing");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "508"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
convertImagesToLinks: false,
noModals: false,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);













 

draft saved


draft discarded


















StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fspace.stackexchange.com%2fquestions%2f31129%2fwhat-flame-is-spacexs-hans-koenigsmann-describing-in-his-presentation%23new-answer', 'question_page');

);

Post as a guest

















1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
3
down vote













The jumping flame was the gas generator exhaust.



You can see that as the bronze-ish coloured smaller cylinder on the side of the engine in this picture of Merlin 1D engines in the factory.



Merlin 1Ds on the factory floor



You can see how it changes in size and shape from the Merlin 1C in this image:



Merlin 1C



This is really obvious on the last Falcon 1, which used a Merlin 1C but was never flown, and recently was moved from storage to the Hawthorne factory, and there is a great shot of the F1 next to the F9 on display.



F1 next to F9 display



The Merlin engine burns fuel/oxidizer in a separate combuster, whose output/power is used to run the fuel pump.



Rockets needs gobs and gobs of fuel/oxidizer at rates that are astonishing. The SSME on the Space Shuttle high pressure turbo pump put out 23,260 hp (17.34 MW) of power. That is a lot.



The Merlin has about 1/3 the total thrust of the SSME, but uses denser fuels and a single turbo pump for both fuel and oxidizer but still needs to move a lot of liquids very quickly.



On the Merlin, the exhaust is vented over the side from the gas generator. That is the flame you are seeing.






share|improve this answer






















  • ah, "gg" = gas generator. Thanks!
    – uhoh
    1 hour ago














up vote
3
down vote













The jumping flame was the gas generator exhaust.



You can see that as the bronze-ish coloured smaller cylinder on the side of the engine in this picture of Merlin 1D engines in the factory.



Merlin 1Ds on the factory floor



You can see how it changes in size and shape from the Merlin 1C in this image:



Merlin 1C



This is really obvious on the last Falcon 1, which used a Merlin 1C but was never flown, and recently was moved from storage to the Hawthorne factory, and there is a great shot of the F1 next to the F9 on display.



F1 next to F9 display



The Merlin engine burns fuel/oxidizer in a separate combuster, whose output/power is used to run the fuel pump.



Rockets needs gobs and gobs of fuel/oxidizer at rates that are astonishing. The SSME on the Space Shuttle high pressure turbo pump put out 23,260 hp (17.34 MW) of power. That is a lot.



The Merlin has about 1/3 the total thrust of the SSME, but uses denser fuels and a single turbo pump for both fuel and oxidizer but still needs to move a lot of liquids very quickly.



On the Merlin, the exhaust is vented over the side from the gas generator. That is the flame you are seeing.






share|improve this answer






















  • ah, "gg" = gas generator. Thanks!
    – uhoh
    1 hour ago












up vote
3
down vote










up vote
3
down vote









The jumping flame was the gas generator exhaust.



You can see that as the bronze-ish coloured smaller cylinder on the side of the engine in this picture of Merlin 1D engines in the factory.



Merlin 1Ds on the factory floor



You can see how it changes in size and shape from the Merlin 1C in this image:



Merlin 1C



This is really obvious on the last Falcon 1, which used a Merlin 1C but was never flown, and recently was moved from storage to the Hawthorne factory, and there is a great shot of the F1 next to the F9 on display.



F1 next to F9 display



The Merlin engine burns fuel/oxidizer in a separate combuster, whose output/power is used to run the fuel pump.



Rockets needs gobs and gobs of fuel/oxidizer at rates that are astonishing. The SSME on the Space Shuttle high pressure turbo pump put out 23,260 hp (17.34 MW) of power. That is a lot.



The Merlin has about 1/3 the total thrust of the SSME, but uses denser fuels and a single turbo pump for both fuel and oxidizer but still needs to move a lot of liquids very quickly.



On the Merlin, the exhaust is vented over the side from the gas generator. That is the flame you are seeing.






share|improve this answer














The jumping flame was the gas generator exhaust.



You can see that as the bronze-ish coloured smaller cylinder on the side of the engine in this picture of Merlin 1D engines in the factory.



Merlin 1Ds on the factory floor



You can see how it changes in size and shape from the Merlin 1C in this image:



Merlin 1C



This is really obvious on the last Falcon 1, which used a Merlin 1C but was never flown, and recently was moved from storage to the Hawthorne factory, and there is a great shot of the F1 next to the F9 on display.



F1 next to F9 display



The Merlin engine burns fuel/oxidizer in a separate combuster, whose output/power is used to run the fuel pump.



Rockets needs gobs and gobs of fuel/oxidizer at rates that are astonishing. The SSME on the Space Shuttle high pressure turbo pump put out 23,260 hp (17.34 MW) of power. That is a lot.



The Merlin has about 1/3 the total thrust of the SSME, but uses denser fuels and a single turbo pump for both fuel and oxidizer but still needs to move a lot of liquids very quickly.



On the Merlin, the exhaust is vented over the side from the gas generator. That is the flame you are seeing.







share|improve this answer














share|improve this answer



share|improve this answer








edited 1 hour ago









uhoh

29k1598358




29k1598358










answered 2 hours ago









geoffc

52.8k8153293




52.8k8153293











  • ah, "gg" = gas generator. Thanks!
    – uhoh
    1 hour ago
















  • ah, "gg" = gas generator. Thanks!
    – uhoh
    1 hour ago















ah, "gg" = gas generator. Thanks!
– uhoh
1 hour ago




ah, "gg" = gas generator. Thanks!
– uhoh
1 hour ago

















 

draft saved


draft discarded















































 


draft saved


draft discarded














StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fspace.stackexchange.com%2fquestions%2f31129%2fwhat-flame-is-spacexs-hans-koenigsmann-describing-in-his-presentation%23new-answer', 'question_page');

);

Post as a guest
































































Comments

Post a Comment

Popular posts from this blog

Long meetings (6-7 hours a day): Being “babysat” by supervisor

Image
Clash Royale CLAN TAG #URR8PPP .everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty margin-bottom:0; up vote 31 down vote favorite 4 I hold a PhD in mechanical engineering with a 7 year background in self-guided, self-paced research including 2 years as a graduate level course instructor and a subject matter expert for various engineering projects in a university setting in the United States. For the last 10-11 months, I am working in a research industry in France where my task is to debug C++ spaghetti code written over a period of several years by my current supervisor. It is a team of 2: just I and my supervisor. Diurnally, I am posed with a "bug of the day" to get out of this C++ code. My supervisor generally gives me about 15-30 minutes to solve it and then accosts me about whether or not the task is completed and then rinses and repeats this until the end of the day. Off-late, my supervisor has been holding 6-7 hour long "meetin
Read more

Is the Concept of Multiple Fantasy Races Scientifically Flawed? [closed]

Image
Clash Royale CLAN TAG #URR8PPP up vote 2 down vote favorite Many fantasy worlds have multiple humanoid species (elves, orcs, humans, etc) living in the same world, in addition to that, they often have the ability to interbreed. And I can't help but question their believability... fantasy-races reproduction interspecies-relations share | improve this question edited Aug 9 at 14:46 Michael Kjörling ♦ 21.1k 10 85 161 asked Aug 9 at 13:13 Chlodio 118 6 closed as unclear what you're asking by MichaelK, Gryphon, John, Vincent, Frostfyre Aug 9 at 15:25 Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question. 3 Stack Exchange exist to
Read more

Confectionery

Image
Prepared foods made with a lot of sugar or other cabohydrates "Sweetmeat" redirects here. For the racehorse, see Sweetmeat (horse). Not to be confused with Sweetbread. This Kransekake is a traditional Scandinavian baker's confection. Confectionery is the art of making confections , which are food items that are rich in sugar and carbohydrates. Exact definitions are difficult. [1] In general, though, confectionery is divided into two broad and somewhat overlapping categories, bakers' confections and sugar confections. [2] Bakers' confectionery, also called flour confections , includes principally sweet pastries, cakes, and similar baked goods. Sugar confectionery includes candies ( sweets in British English), candied nuts, chocolates, chewing gum, bubble gum, pastillage, and other confections that are made primarily of sugar. In some cases, chocolate confections (confections made of chocolate) are treated as a separate category, as are sugar-free versions of
Read more