Yeah, what's changing is me repeating the question to get them to explain the problem to me completely. Unfortunately, at this point, my only sources of information are my boss (who asked me the question in the hallway a month ago, shortly before I had an unpredicted 3 week absence), and an...
Hi there,
I work for an electric company who periodically has to due efficiency tests on our plant turbines. Related to one of those, we're looking to modify a 5-stage, axial, condensing, geothermal steam turbine, to add pressure ports for stage pressures, to facilitate more detailed on-going...
Yeah, right after asking this question, I realized I don't have enough information yet to do a real investigation.
The question was asked to me as a theoretical question in general, not specifically applied (as of yet) to a specific turbine.
However, in going back to ask for more information...
We've got a case where due to less than ideal function of our steam drier, we've got steam coming to a turbine with a higher moisture content than is desired.
To compensate for this, they're currently running the machine with lower inlet pressure (higher steam consumption) to drop the moisture...
We have a small (5MW) "portable" single-flash, 4 stage axial impulse turbine (MHI) (Inlet T,P, M_dot = 158°C, 589kPa, 72,500kg/hr). Original design was for 0.6% NCG. In its new, more permanent location however, the NCG is much higher, on the order of 20% (comparable with Kizildere, Turkey)...
Partly to bump the thread, in case anybody might have some answers, and partly to add new info...
I looked at AxStream turbine analysis software, and it looks like that software uses the mean camber line to indicate the blade and stator angles. That being said, there are still many examples...
dangit. failed again. Alright, I give up. I tried to upload a brand new, different but equivalent pic, and it gave me the same "Duplicate Header" error, so I'm gonna just stop trying for now.
Long story short, I'm trying to figure out how to measure the blade entry and exit angles, relative...
Seems the second attachment failed, so here it is again.http://files.engineering.com/getfile.aspx?folder=f90b2d27-eaaf-4249-bd29-8876ede1256a&file=Steam_Path,_mean_blade_height,_E2.png
Howdy,
I'm a new steam turbine engineer, working on my first project, but in a fairly new department such that I don't have anybody here with more experience in this particular area.
I've been reading as many textbooks, papers and other internet resources as I can find, and I can't find a...
wish I could edit my posts. Sorry. First link didn't work in second post. Second link seems to. Here is the final pic.http://files.engineering.com/getfile.aspx?folder=a559fc64-b1de-42f9-b8fb-4d658436569e&file=Steam_Path,_mean_blade_height,_E2.png
OK, it looks like only one of my attachments uploaded in my original post. Here (hopefully) are the other two.http://files.engineering.com/getfile.aspx?folder=d0f2315b-03cd-4184-8cae-ba3252c97fb5&file=Steam_Path,_mean_blade_height,_E2.png...
Hi there,
I've been reading as many textbooks, papers and other internet resources as I can find, and I can't find a definitive answer to this question. I need to construct (mid-span) 2D velocity diagrams for existing blades. My problem is that I can't seem to find information about which...
Hey Kenat, your reply popped up while I was typing mine.
I have never heard of ASME Y14.10-2004 or ASME Y14.35M-1997 , and don't currently have access to them, so... I'll have to answer "I dunno" to those.
As for my example case, my old company (from whence this example drawing came) used...
THanks Kenat. I looked through those threads (and also several others that included various combinations of the key words "balloon", "flag" "note", "hex", etc, but I'm still not coming up with anything concrete.
Basically, what I think I understand now is that flag notes (not balloons, as I...
Not finding an answer for this one either (on this forum or others or ASME Y14.5-2009 standard).
Can somebody please tell me what the difference is between a hex flag/balloon and a triangle flag on a drawing?
I've seen examples of both appearing on the same page, but I don't know why, and I...
excellent. I think I get it now. After everything, part of my problem was failing to consider the zone in 3D when I was making my little demo model. As for the bit about just having one single secondary/tertiary zone, etc for all members of a pattern... well... that was just something I...
OK, I've been thinking about this a bit more, and I've refined my understanding. Please see attached image (v2) and let me know if I'm on the right track here to at least answer my 2nd question from above.
My 1st question remains about the tertiary zone refining also to B by default, by nature...
OK, so... to make sure I'm getting this, I re-created the model from their "Composite Gage Tip, Part III of III"
(http://www.tec-ease.com/gdt-tips-view.php?q=271)
Within that model, I also extruded & sketched what I understand to represent the top 3 tolerance zones (see attached image).
The...
