Not sure about the U.S., but the Canadian engineering regulators are established to purportedly protect the interests of the public, not the engineers.
Some jurisdictions have formed advocacy groups for engineers (e.g. Ontario has OSPE).
Cheers,
CanuckMiner
piler10,
Do the terms 'deep' and 'longwall' go together? If so, would you expect any settlement?
You might try searching for the term 'subsidence' as one of your keywords.
While not a longwall operation, I seem to recall hearing about subsidence in the town of Flin Flon, Manitoba (Canada)...
MedMan,
You're making 39k/yr, working 50 hrs/wk. That's about $15/hr. We pay our engineering STUDENTS more than that, and our EITs even more. Have a look at salary surveys from OSPE and you'll realize how underpaid you really are. 65k sounds reasonable, say "about right", for 4 years post...
Sorry inventaguy, no first-hand knowledge here. However, I suggest you contact Martin Engineering and consider obtaining their Foundation series of design guides.
http://www.martinengineering.com/apps/f4/?module=index
You might also try the forum at Bulk Online...
mhnet,
Looks like the paper was moved to a different location on the same site. Have a look here http://www.ppipella.com/resources/technical_papers/pdf/WireRopeSheaveFrictionTU2.pdf
Cheers,
CanuckMiner
Redskin,
The fan manufacturer may give you the static pressure, or the total pressure. Their description will tell you which is being provided.
I suggest you google pitot tube. Also, check out AMCA 210. Better yet, talk to a fan manufacturer's rep.
Cheers,
CanuckMiner
Power equation can be approximated as HP = Pressure (in.w.g.) * Flowrate (cfm) / (6356 * Efficiency)
Therefore, 60,000 * 2 / (6356 * 70%) = 27 HP
Your example of 300 HP motor looks like overkill by a factor of 10.
Regarding what I mean by flowrate, it is not velocity. It is a volume of air...
As with any fluid circuit, you need to determine the flowrate. After you know your flowrate, you can calculate the resistance to flow (i.e. pressure). You then look for a fan (or pump, or compressor) that can provide the flow and pressure that you've calculated. There may be many choices of...
Redskin,
The water gauge is the pressure of the fan at your airflow of 400,000 cfm. It might be static pressure, or it might be total pressure. This would be a relatively low pressure for a mine fan.
Note that your power of 20 watts isn't even enough to power a light bulb. The power for a...
Not sure how going to HR is going to help, given that it is quite clear in the OP that they don't work together (anymore).
mizzjoey, it seems to me that you're worried about losing the "useful contact" if you say anything to this guy. He might react quite well to a blunt "let's just be...
I Never Liked Acronyms
I'd be more curious about the XX part of it and what you have to do to gain a triple X rating.
By the way, how is this a Professional Ethics issue?
Cheers,
CanuckMiner
Zoobie,
Next handshake you have, try bowing down and kissing the dude's hand. You probably won't have to worry about another "manly" handshake from him again. ;-)
I don't buy into "you can tell a lot about a man from ___". (fill in the blank with: the way he shakes hands, the shoes he...
prapat,
If you're looking for a book, you might consider "Fan Engineering" by Howden (formerly Buffalo Forge) http://www.howden.com/en/Businesses/HowdenBuffalo
Cheers,
CanuckMiner
