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...
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)...
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...
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...
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...
Hi there,
I know for a fact that this forum has discussed the topic of using a primary datum that is parallel to an axis (i.e. to control the location, orientation of that axis). For the life of me, though, I can't seem to make that discussion appear in my search results. I've tried several...
Hi there,
This may seem like a very basic question, but I just want to make sure I'm not missing anything.
Is there any conceptual difference between these two examples? I believe the answer is no, but I'm willing to be corrected.
In general, I'm in the middle of training my group here...
From what I understand, there is no official standard I can point to that would indicate specific methods or instrument types for validating geometric tolerances specified in accordance with ASME Y14.5 (whatever year).
What I'm wondering is... are there any guidelines I might be able to refer...
I'm looking for the best way to define a plane, and to choose which of a couple options make the most sense for defining a primary datum plane (i.e. Datum Plane A).
Background: I'm fairly new to a job working for an electricity company (in Costa Rica). My department is fairly new, and...
Is anybody here aware of a national standard, or at least an accepted corporate standard (i.e. from Boeing) for the cold stabilization of aluminum for the purpose of relieving internal stresses?
The process I'm talking about is the cyclic (or not) temperature soaking of aluminum blocks at...
I've got an issue I'm working now where I'm obligated to guarantee that the raw material (6061-T651) used to produce a chassis I've designed shall be supplied on an S-basis (as opposed to A or B).
In order to reliably guarantee the some faces on the part won't move due to internal stresses...
Howdy,
I'm working on an avionics product that has waterproofness requirement that we can't seem to pass with current processes. Currently, our PCA's are coated with a water-based humiseal. But, while that provides electrical isolation and prevents minor corrosion due to humidity, it's...
