Subject: Re: Advice Requested
From: pgs@adan.kingston.net (Peter Skelton)
Date: Thu, 05 Dec 1996 02:45:16 GMT
labowman@wesnet.com (Lisa Bowman) wrote:
> Now, do any of you have any point-of-contacts which could advise me on
>what I would need to do to make myself more attractive to their respective
>industries (i.e. automotive, civil engineering, manufacturing, aerospace...).
>I am not asking for a job, just advice. I need to know what to emphasize or
>brush-up on, technically and managerially, so that I can better attack the job
>market here. Thanks.
>
It seems to me that you could do worse than calling technical managers of a
couple of the majors in Akron, and asking them what they suggest over a
coffee or lunch. Their ideas face to face will be worth a lot more than
anything I might say without meeting you. I could give you a name or two
but won't post them, of course.
There a re a few very good academics you might approach too.
--
Peter Skelton
Skelton & Associates
613/634-0230
pgs@adan.kingston.net
Subject: FEA theory needed for FEA software?
From: enrique.juaristi@crpht.lu (Enrique Juaristi)
Date: Thu, 05 Dec 1996 10:52:32 +0100
I'd like to discuss an interesting topic.
After a discussion with one of my colleagues, I came to the following
conclusion:
it is possible to do FEA analysis with existing software, without ever
having studied FE theory, because it is never used as such in the actual
analysis and the software does everything. But I'm convinced that you do
need some knowledge of what you're doing in order to do the right choices.
After all, FE is a "garbage in, garbage out " tool...
What do you think?
--
Enrique Juaristi, mechanical engineer
Subject: Help Needed : Portable Multi-Stage Centrifugal Fan/Blower (Mining)
From: Schalk van Niekerk
Date: Wed, 04 Dec 1996 18:58:22 +0200
Help urgently needed!
Background
We have designed a basic single-stage fan for the mining industry
for the purposes of compacting explosives into its blast-hole
The blower/fan operates as follows:
1. Fan generates compressed air of approx. 20kPa (Static)
2. Conveys air through a 3/4" hose, 3 meters in length (12ft)
3. Explosives in the form of furtilizer is then fed into the
hose via a measuring flask
4. The air/fertilizer mix travels 1.5 meters (6ft) through
the hose into the blast-hole
Current Specifications:
Type: Single Stage Fan
Fan Blade Detail: Vane Type with Backing Plate
on one side
Fan speed: 30 000 RPM
Fan Blade Outside Diameter: 145 mm
Static Pressure: 20 kPa
Capacity: 70 CFM
Compressed Air Temperature: 50 Degrees Celsius
(High, but Acceptable Temp)
Needs
There has been a further need for a stronger fan/blower to cope with
the following minimum requirement:
Extension of hose from 1.5 meter (6ft) 3/4",
to 20 meters (60 ft) 3/4" through which mix has to flow
New Specifications:
Type: Multi Stage Fan
Fan speed: 30 000 RPM
Fan Blade Outside Diameter: 145 mm (1st Stage)
Static Pressure: 60 kPa (last stage output)
Capacity: 70 CFM
Compressed Air Temperature: Max. 50 Degrees Celsius
(High, but Acceptable Temp)
Ambient Temp 20 Degrees Celcius
Air Density @ 1000 meters above sea-level
Current Status:
We have developed a 2nd Stage fan/blower and currently have the
following problem:
- After the 1st Stage, no increase in pressure
(20 kPa before/after 2nd Stage)
The stages after 1st Stage need to be re-designed in order to achieve
our objective
Please inform or provide information regarding this problem, or how
you could assist solving this problem
Thank you
Regards
Andre Swart
Hydro Power Engineering
PO Box 1148
Honeydew
2040
Republic of South Africa
Tel +2711 462-1903
Fax +2711 462-7156
udoption@iafrica.com
Subject: Re: Engineering a homebrewery design
From: The Silicon Surfer
Date: Tue, 26 Nov 1996 23:17:38 +0000
Mark Dallara wrote:
>
> Greets,
>
> I'm preparing to take my brewing to the next level: all-grain brewing and
> using a keg fridge/lagering chest. I've been researching the processes
> and equipment, hanging out at my local brew store and several hardware
> stores, and checking out the various websites which describe homebrewers'
> setups in detail. (Many thanks to those of you who take the time to put
> up such pages... they are an excellent resource for those of us trying to
> save money while designing our own homebreweries!)
>
> When I finally get around to updating my website, I plan to outline my
> design and include a link list to all the sites I can find that describe
> homebrewery setups.
>
> In the meantime, some of the more persistent challenges (and my thoughts
> on them) are briefly outlined below for comment:
>
> * How can I quickly heat liquor tanks and boiling pots indoors
> (i.e. without propane burners)?
>
> I'm reading about RIMS-type setups now, and it sounds great for
> mashing, but probably insufficient for boiling. I thought about
> suspending an array of hot water heater elements just above the brew, but
> the guy at Ace Hardware said that the steam could screw up the rest of the
> components.
>
> * What's the best way to transfer wort?
>
> Gravity is a pain because of the height required for a three-barrel
> system. Pumps can fail. But hand pumps look like a good solution. The
> McMaster catalog has two different hand pumps that might fit the bill... I
> just have to make sure that the hot wort can contact BUTA-n and Delrin
> without problems.
>
> * What are the best (i.e. cheapest effective) items to use for mash
> kettles and boiling pots? The brew stores want a hundred or so for
> a barrel with the proper fittings... is there a better solution?
>
> Any comments or suggestions are appreciated. I'm excited about this
> particular home project, and any helpful hints will speed me toward an
> optimized solution.
>
> Thanks,
>
> --
> Mark Dallara
> mdallara@kcii.com
where are these aforementioned websites????????
thirsty
Subject: Nozzle SIFS
From: bill.weitze@engineers.com (Bill Weitze)
Date: Thu, 5 Dec 1996 06:16:00 GMT
GU>Could anybody tell me on what specific section of the ASME code can I
GU>find how to calculate the stress intensity factor for nozzles?
GU>Any help would be greatly appreciated.
This information is not in the ASME code, as far as I know. Try Welding
Research Council bulletin 297; I understand that it is referenced in
ASME Boiler and Pressure Vessel Code Section VIII, Division 1, Appendix
G, paragraph G-9.
------------------------------------------------------------------
Bill Weitze, PE:
Co-Sysop, The Engineers' Club BBS, (408) 265-3353, San Jose, CA
Executive Committee Member, ASME Santa Clara Valley
Senior Engineer, GE Nuclear Energy
bill.weitze@engineers.com opinions are mine
------------------------------------------------------------------
* OLX 2.2 * He's told us not to blow it . . . -D. Bowie
Subject: Low cost Temperature DATA LOGGER using your PC
From: Mark Hansen
Date: 6 Dec 1996 12:55:31 GMT
You can now measure 8 independent thermocouples (C,E,J,K,T,R, & S types)
simultaneously with your PC using either DOS or Windows at low cost.
Temperature monitor plugs directly into serial port of PC for direct
display of temperature vs. time in either tabular or graphic format with
data storage to disk. The monitor comes complete with software program
for PC. For further details contact Lazar Research Labs. Inc. at
1-800-824-2066 in the U.S. or email service@lazarlab.com or fax
1-213-931-1434.
Subject: Re: Need statics & dynamics textbook advice
From: ajmosk@engin.umich.edu (Andrew Moskalik)
Date: Thu, 5 Dec 96 16:47:02 GMT
In Article <19961204133200.IAA29841@ladder01.news.aol.com>, lavan123@aol.com
wrote:
>I m looking to buy two good books. One on Engineering statics, the other
>Engineering Dynamics. [...]
>
>I intend to use the book with SHAUMS (sp) to refamiliarize myself with the
>topics. If there is one book that covers both topics and is well written,
>even better. If you have it, provide enough information so that I can
>find the book you recommend (name, edition and Author or even the ISBN #
>and the phone number to a company Like brown s that sells it ). I d
>appreciate any help you can provide.
I like "Mechanics for Engineers: Statics and Dynamics" by Beer and
Johnston. It's got a lot of sample problems and a "summary" section at the
end of each chapter that condenses all the important information. This book
is a combination of the "Statics" and "Dynamics" text written by the same
authors, and available separately. The combined edition, though, is
substantially cheaper that buying the individual books.
Info:
Mechanics for Engineers: Statics and Dynamics
Beer, Ferdinand Pierre, and Johnston, Elwood Russell
ISBN 0-07-004-584-4
McGraw Hill, New York
Andrew Moskalik
