HDTenEightyP/NetNews huggingface dataset:
From: nagle@netcom.com (John Nagle)
Subject: Re: modified turboprop into car
Date: Sun, 30 Aug 92 17:57:59 GMT
Organization: Netcom - Online Communication Services  (408 241-9760 guest) 

       One try in this direction was an aircraft APU mounted in an
electric car.  The APU, which was something like a 10-15KW gas turbine,
was used to charge the battery.  The APU was cycled on and off as 
battery charge level dictated, so it would switch on and off while
driving.  Amateur effort, LA, mid 1970s.

					John Nagle
From: paraska@oasys.dt.navy.mil (Pete Paraska)
Newsgroups: sci.engr.mech
Subject: Re: modified turboprop into car
Date: 2 Sep 92 14:59:11 GMT
Reply-To: paraska@oasys.dt.navy.mil (Peter Paraska)
Organization: Carderock Division, NSWC, Bethesda, MD

I seem to remember one of my engineering instructors telling us that
turbine engines in cars would not be feasible since the output shaft
speed for efficient operation was so large compared to the speed needed
for input to a typical automobile transmission.

It seems that very large gear ratios would be needed to bring the "efficient"
turbine engine output shaft speed down to a range that a car can use.
Therefore, a large reduction gear train would be needed.

Am I wrong here?
|/////////////////////////////////////////////////////////////////////////////|
| Pete Paraska (paraska@oasys.dt.navy.mil)                      (301)-227-1650|
| David Taylor Model Basin, CARDEROCKDIV, NSWC                                |
|\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\|
Newsgroups: sci.engr.mech,rec.autos.tech
From: cid@athena.mit.edu (Derek H Cedillo)
Subject: Re: GM electric vehicle update #2
Organization: Massachusetts Institute of Technology
Date: Thu, 27 Aug 1992 10:29:00 GMT

In article <1992Aug26.134648.12323@miavx1.acs.muohio.edu> dwsmall@miavx1.acs.muohio.edu (Derek 'Enzo' Small) writes:
>> Mr. Holcomb, please continue contributing those Electric Vehicle reports.
>> I, for one, want to see them, and I an interested in seeing the *engineering
>> problems* encountered.  And I bet thousands of others agree with me.
>			  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
>Heres one anyway
>
>-- 
>*******************************************************************************
>* Derek "Enzo" Small                   [san.dwsmall]@miavx1.acs.muohio.edu    *
>*                                      Miami University, Oxford, Ohio 45056   *
>*******************************************************************************
>*                                                                             *
>*  "If you love someone, let them go.  If they come back to you they are      *
>*   yours.  If not, hunt them down and kill them!"                            *
>*                                             My coffee cup                   *
>*******************************************************************************



Here's two.
(or am I 3 or 4 by now?)

derek
From: thad@lever.asd.sgi.com (Thad Beier)
Newsgroups: sci.engr.mech
Subject: Re: modified turboprop into car
Date: 28 Aug 92 17:58:49 GMT
Reply-To: thad@sgi.com
Organization: Silicon Graphics

I was wondering if anybody has tried to make a small
turbojet engine out of a car (or, more likely, truck)
turbocharger.  It seems to me that the hard part of
a turbojet is the compressor and turbine, and those
are already being produced in large quantities for the
auto market.  The burner (combustion chamber) and
fuel injection system seem relatively simple in comparison.

I would think that a turbo for a big (20 liter) truck would
generate about 130 nt or about 30 pounds of thrust.  Not
enough to push my 172, but an interesting amount for
some purposes.

20 liters @ 3000 rpm * .5 cycles/revolution => .5 meter^3/sec
say 200 m/sec exhaust velocity and 1.3 kg/meter^3
.5 * 200 * 1.3 => 130 nt or 29.21 lbs.

-- 
Thad Beier..Silicon Graphics..415)390-1028..thad@sgi.com..C-172A N7770T.....FLY!
From: goldberg@oasys.dt.navy.mil (Mark Goldberg)
Newsgroups: sci.engr.mech
Subject: Re: modified turboprop into car
Date: 28 Aug 92 10:58:19 GMT
Reply-To: goldberg@oasys.dt.navy.mil (Mark Goldberg)
Organization: Naval Surface Warfare Center, Annapolis, MD

Chrysler actually tried this in the early 1960's.  The gas turbine engine
(that's what a turboprop is) was front mounted and featured a type of
recuperator in the cycle.  It consisted of a rotating wheel thru which
exhaust would passed, heating the wheel.  The other part of its rotation
was in the high-pressure stream.

Apparently, there were many practical propblems with make this type
of engine impractical for passenger car transportation - cost of material
for the blades etc (titanium), hot exhaust, and susceptibility to damage
by debris in the exhaust.  Foreign object damage (FOD) is a major concern
at airports, for that reason.

However, I have no doubt that some new technology may change things.
Already, turbocharged engines are featured in many cars.  These integrate
an element of gas turbine propulsion into a reciprocating engine (compressor
driven by exhaust gas).

   /|/| /||)|/  /~ /\| |\|)[~|)/~   |   Everyone's entitled to MY opinion.
  / | |/ ||\|\  \_|\/|_|/|)[_|\\_|  |      goldberg@oasys.dt.navy.mil
========Imagination is more important than knowledge. - Albert Einstein=======
From: schiedec@sunslc.imw.tu-clausthal.de (Norbert Schiedeck)
Newsgroups: sci.engr.mech
Subject: yeaahh
Date: 26 Aug 92 19:28:09 GMT
Organization: Techn. Univ. Clausthal
X-Newsreader: Tin 1.1 PL5

I agree, that`s why I love my job! There are so many possibilities doing an
interesting job.

Good luck

Norbert
From: jtien@venice.eng.uci.edu (Joe Tien)
Subject: info on CFD programs
Newsgroups: sci.engr.mech
Reply-To: jtien@venice.eng.uci.edu (Joe Tien)
Organization: University of California, Irvine
Date: 3 Sep 92 00:31:45 GMT

Hi,

I'm looking into some CFD (computational fluid dynamics) programs to use as
benchmark programs for my cache design. The problem is, I have no idea what
these programs do and what equations they implement. 

Could someone point me to some reference books and stuff so I can find out
more on these programs. They are: unriems50, crale10 and line26. 

I doubt many people would be interested in this stuff, so please email me at:

	jtien@balboa.eng.uci.edu

Thanks very much,

Joe Tien



Newsgroups: sci.engr.mech
From: schiedec@sunslc.imw.tu-clausthal.de (Norbert Schiedeck)
Subject: gear cutting
Organization: Techn. Univ. Clausthal
X-Newsreader: Tin 1.1 PL5
Date: Wed, 26 Aug 1992 19:15:08 GMT

Who has a publicationlist (particularly nongerman authors) or knows some publications about manufacturing gears, especially milling and grinding. Please drop me  an Email or post it. I am rather interested in that subject and also in neighboured fields of research (e.g. noise reduction in gears). I look forward to receiving a lot of new informations. Thanks in advance!


Norbert Schiedeck

Technische Universitaet Clausthal 
Germany  
Newsgroups: sci.engr.mech
From: aboba@world.std.com (Bernard D Aboba)
Subject: Gas-Liquid Flow
Keywords: gas-liquid flow, gas, liquid, CFD
Organization: The World Public Access UNIX, Brookline, MA
X-Newsreader: Tin 1.1 PL3
Date: Wed, 26 Aug 1992 03:02:30 GMT

I wrote my Ph.D thesis on gas-liquid fluid mechanics, and
as a result have a pretty complete software package to do
pipe flow calculations, as well as lots of course notes
and other materials that might be useful.
 
I have been thinking of offering to teach a course at
some of the nearby universities, but have never heard
of any university nearby offering gas-liquid fluid
mechanics courses. 
 
So I thought I'd take a small survey of the audience
here and ask:
 
  * Do any of you fluid mechanics students know anything
    about gas-liquid flow?

  * If so, did you learn it at your university?

  * Would you be interested in an introductory course,
    covering flow pattern theory, mechanistic modelling,
    computer computations, perhaps some heat transfer
    or phase change?
 
  * Would you prefer analytical or computer problem sets?
 
My original idea was to self-publish a short textbook
(150 pages, 8.5 by 11) which would include software,
exercises, and charts, and which would sell for $25 or
less. 
 
Gas-liquid flow is a cool subject, which almost no
universities teach about, much to their discredit,
my thinkst. Question is: does anyone care?
From: cid@athena.mit.edu (Derek H Cedillo)
Newsgroups: sci.engr.mech
Subject: Taguchi Program Flopped (for me at least)
Date: 31 Aug 92 12:39:40 GMT
Organization: Massachusetts Institute of Technology


Well,
for all of you interested in knowing about the great taguchi base program,
I have no idea.  I was short on time, so I only got a few hours to try
and figure out the program.  I couldn't.  There is a class offered for 
it though, that would be real interesting.  In my case, I didnt
have so many variables.  I had a lot of interspersed dependant 
variables, and seems like the program is better for multiple
independant variables.   It also seemed like a worthless peice of junk
in my case.  It asked for the indep.  variable ranges, and then asked
how I expected them to relate, quadraticly or simple, then it had the nerve
to ask me for my results.  I thought this was an aide to help you design
the experiment, But I no longer think it does.  It plotted my results
then, and I got nothing better than if I hand plotted, or used Delta
or Cricket Graph or whatever.  But this very well could be becuase I only
had 2 hours with the program.  Im sure with the class and more time,
there is something worthwhile in there.  I will post the name of the program,
and any contacts in regards to tthe class (May have only been GE offered)
and keep you posted.



Derek
Newsgroups: sci.engr.mech,misc.misc,rec.crafts.misc
From: jfsenior@unix1.tcd.ie (John Senior)
Subject: Gas Burners for Butane (bottled gas.)
X-Comment: All is vanity.
Organization: Craig Shergold Picture Postcard Corp.  
Date: Wed, 2 Sep 1992 15:52:19 GMT

I am in the process of building a small raku kiln, and am in need
of some information about gas burners.  The bottled gas that is
easily available here is butane (I think) not propane, but all
the designs that I have for burners are for propane.  I could
just buy one but they're pretty expensive so I'd rather have a
go at building one first.  I have been told that it has to deliver
80,000 to 100,000 BTU's.  So, does anyone know of any designs for
butane burners - or can I just use propane burner designs?

Yours,

John.
--
Jfsenior@vax1.tcd.ie in case you were wondering.
Newsgroups: sci.engr.mech
From: disaacs@pietrzak.carleton.ca (Dave Isaacs)
Subject: Re: modified turboprop into car
Organization: Carleton University
Date: Fri, 28 Aug 1992 16:57:10 GMT

In <24238@oasys.dt.navy.mil> goldberg@oasys.dt.navy.mil (Mark Goldberg) writes:

>Chrysler actually tried this in the early 1960's.  The gas turbine engine
>(that's what a turboprop is) was front mounted and featured a type of
>recuperator in the cycle.  It consisted of a rotating wheel thru which
>exhaust would passed, heating the wheel.  The other part of its rotation
>was in the high-pressure stream.

>Apparently, there were many practical propblems with make this type
>of engine impractical for passenger car transportation - cost of material
>for the blades etc (titanium), hot exhaust, and susceptibility to damage
>by debris in the exhaust.  Foreign object damage (FOD) is a major concern
>at airports, for that reason.

>However, I have no doubt that some new technology may change things.
>Already, turbocharged engines are featured in many cars.  These integrate
>an element of gas turbine propulsion into a reciprocating engine (compressor
>driven by exhaust gas).

I have always belived that the main objection to using gas turbines in
cars was that in a car you are very rarely running at full power, and at
part load powers gas turbines have a very poor specific fuel consumption.
By adding intercooling and a heat exchanger you can get good performance at
low power, but then the thing is so complicated that maintainance becomes
a serious problem.

-- 
__________________________________________________________________________
 ____  ____  __  David Paul Isaacs ________________________________________
 _____ _____ __  Department of Mechanical and Aerospace Engineering ________
 _____ ____  __  Carleton University ________________________________________
 ____  __    __  Ottawa, Ontario ___________________________________________
_________________disaacs@ccs.carleton.ca __________________________________
Newsgroups: sci.engr.mech,sci.engr
From: aep@MV3600.BMEN.TULANE.EDU
Subject: Beer and Johnson statics
Nntp-Posting-Host-[nntpd-8418]: mv3600.bmen.tulane.edu
Reply-To: aep@MV3600.BMEN.TULANE.EDU
Organization: TULANE, BMEN, NEW ORLEANS, LA
Date: Mon, 31 Aug 1992 20:29:56 GMT

Hello-

I am preparing my first course in Statics and will be using the Beer and
Johnson text. Has anyone used this text previously, and if so could you
contact me about test questions you have from the course.

Thanks in advance. 

Andy Pollard
aep@bmen.tulane.edu

Newsgroups: sci.engr.mech
From: gohnert@civil1.civ.wits.ac.za (Mitchell Gohnert)
Subject: Non-linear plates in bending solutions
Keywords: Finite element, Plates
Organization: Wits U Civil Engineering (Novell Users).
Date: Wed, 2 Sep 1992 12:53:38 GMT

I am looking for elastic-plastic solutions as a "yard stick" to determine 
the accuracy of some recently developed non-linear plate bending 
algorithms.  Finite element analysis programs, such as ABAQUS, LUSAS, and 
others must have standard non-linear solutions for a variety of loadings and 
support conditions.  This information is vital to my present research so 
your advice or direction would be greatly appreciated.



Mitchell Gohnert
Dept. of Civil Engineering
University of the Witwatersrand
 ___________________ _____________________________________
| Private Bag 3     | Phone : (011) 716-2659              |
| P O Wits          | Fax   : (011) 339-1762              |
| 2050 South Africa | E-MAIL: 003mitch@witsvma.wits.ac.za |
|___________________|_____________________________________|
Xref: sparky sci.engr.mech:223 rec.autos.tech:11766
Newsgroups: sci.engr.mech,rec.autos.tech
Subject: Re: GM electric vehicle update #2
From: dwsmall@miavx1.acs.muohio.edu (Derek 'Enzo' Small)
Date: 26 Aug 92 13:46:48 -0500
Organization: Miami University Academic Computer Service"

> Mr. Holcomb, please continue contributing those Electric Vehicle reports.
> I, for one, want to see them, and I an interested in seeing the *engineering
> problems* encountered.  And I bet thousands of others agree with me.
			  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Heres one anyway

-- 
*******************************************************************************
* Derek "Enzo" Small                   [san.dwsmall]@miavx1.acs.muohio.edu    *
*                                      Miami University, Oxford, Ohio 45056   *
*******************************************************************************
*                                                                             *
*  "If you love someone, let them go.  If they come back to you they are      *
*   yours.  If not, hunt them down and kill them!"                            *
*                                             My coffee cup                   *
*******************************************************************************
From: edmoore@vcd.hp.com (Ed Moore)
Newsgroups: sci.engr.mech
Subject: Re: modified turboprop into car
Date: 2 Sep 92 22:29:48 GMT
Organization: Hewlett-Packard VCD
X-Newsreader: Tin 1.1 PL5

Mark Goldberg (goldberg@oasys.dt.navy.mil) wrote:
: Chrysler actually tried this in the early 1960's.  The gas turbine engine
: (that's what a turboprop is) was front mounted and featured a type of
: recuperator in the cycle.  It consisted of a rotating wheel thru which
: exhaust would passed, heating the wheel.  The other part of its rotation
: was in the high-pressure stream.

In 1962 Chrysler put 50 of these cars in ordinary households for six months'
use, then transferred them to 50 other families for another six months.
That's quite an alpha test program!  Several years ago one of the car
magazines reported that not a SINGLE one of those cars exists today.
Because their accounting value was so high, Chrysler had all of them
destroyed to reduce asset taxes during their struggle for survival.  How
sad.  I'd like to see one in the Smithsonian.
Newsgroups: sci.engr.mech
From: zukicn@wl.aecl.ca
Subject: COMPUTER MODELLER Position - R&D
Organization: AECL RESEARCH
Date: Thu, 27 Aug 1992 15:12:44 GMT

I am posting this for my manager & branch. Do NOT send your resumes, 
inquiries, etc. to me, as it all has to go through the Human
Resources and the person listed below. Our phone is: (204) 753-2311. 

Thank you,

Nermin Zukic

----------------------------------------------------------------------------

               RESEARCH AND DEVELOPMENT OPPORTUNITIES

                               for A

                         SCIENTIFIC COMPUTER
                          MODELLER/ANALYST

             To Work in a Multi-Disciplinary Environment

                   Salary:  CDN $35,000 to 57,500
             depending on qualifications and experience


        A Computer Modeller/Analyst is required to develop and
        utilize computer codes to analyze the thermal and
        mechanical response of CANDU fuel channels under transient
        conditions.  Immediate work involves the development of
        theoretical models or computer codes to facilitate the
        understanding of the physical phenomena embedded in the
        various experiments, and the comparison of the actual
        experimental results with the predictions.

        An advanced degree in Mechanical, Chemical or Nuclear
        Engineering, Applied Mathematics, or Physics is preferred,
        although a bachelors degree with high academic standing and
        relevant experience in research will also be considered.  

        A strong background in heat transfer and scientific
        programming is essential.  Additional background in fluid
        flow dynamics, solid mechanics or materials science is
        desirable.  Demonstrated technical report writing and oral
        communications skills would be useful assets.

        The Whiteshell Laboratories is located at Pinawa, an
  attractive recreational/residential community on the banks of the
  Winnipeg River, northeast of Winnipeg.  We are a 1000 employee
  laboratory with research interests in both nuclear and non-
  nuclear activities.  The laboratory has a strong, comprehensive
  complement of in-house support services/facilities and research
  is well supported with advanced experimental equipment and
  computers.


  INTERESTED?    Contact A. Portman
                 AECL Research
                 Whiteshell Laboratories
                 Pinawa, Manitoba
                 R0E 1L0
                 (File No. WSR2017)
Newsgroups: sci.engr.mech
From: mitsch@eng2.eng.monash.edu.au (Brett Mitsch)
Subject: Water Features
Summary: Info on
Keywords: Hydraulics nozzles jets weirs
Organization: Faculty of Engineering, Monash University 
Date: Mon, 31 Aug 1992 01:41:29 GMT

dear news user

I am currently working on a thesis on the hydraulics of architectural water 
features. If anybody out there has ANY knowledge of this field or any idea of 
where I could get info then I would greatly appreciate it. In particular I am 
looking at such topics as hydraulics of nozzles, jets, weirs and any 
other water hydraulics that may spring to your mind as you read this. If any 
of your friends or colleagues have some ideas then I would appreciate them 
too.

Please send any info (any at all) to me at the following e-mail address:

                mitsch@eng2.eng.monash.edu.au

Your help would be greatly appreciated,
Brett Mitsch

Newsgroups: sci.engr.mech
From: chas@castle.ed.ac.uk (C Spencer)
Newsgroups: sci.engr.mech
Subject: Re: modified turboprop into car
Date: 31 Aug 92 09:45:27 GMT
Organization: Edinburgh University


I recall being taught about gas turbines using a demonstration apparatus
made by Cussons, based on a Napier turbocharger. As suggested in the
original post, a fuel system/combustion chamber was placed between the
compressor and turbine (in flow terms, not literally). The thing was simply
connected to a generator, but it did work (And made a lot of noise). As
part of my Honour Project I tried to do a simulation of it.

-- 
Chas Spencer			email :	Chas@ed.ac.uk
User Support, EUCS
University of Edinburgh
Newsgroups: sci.engr.mech
From: law@eclipse.stanford.edu (Kincho Law)
Subject: ASME Engineering Database Symposium, 1993
Organization: Stanford University
Date: Thu, 3 Sep 1992 19:44:06 GMT


                        CALL FOR PAPERS

 American Society of Mechanical Engineers Engineering Database Program
              Seventh Annual Engineering Database Symposium on
      "Engineering Data Management: Key to Success in a Global Market"
                            August 9-11, 1993
                     to be held in conjuction with
    Thirteenth Annual ASME International Computers in Engineering Conference
        Loews Coronado Bay Resort, San Diego, California, U.S.A.

The  purpose  of  the  engineering  database symposium  is  twofold:  to
publicize recent industry and business successes in implementing 
engineering data management strategies for product conceptualization,
design, development and support, and to present advances in research
relevant to product engineering that are vital to survival in the 
competitive global market environment.

Papers are solicited in the general area  of engineering data management.
Topics of interest include (but are not limited to):

- Engineering database implementation experiences
- CALS initiative and industrial enterprise integration programs
- Implementation of STEP/PDES and other product data exchange standards
- Integration frameworks and application interfaces
- Evaluation of vendor database products
- Database support for concurrent engineering
- Engineering applications of object oriented database technologies
- Engineering product and data modeling
- Engineering database performance, integrity and security
- Engineering document storage systems
- Hypertext and hypermedia support for engineering information system
- Management of legacy data

All papers will be given a thorough peer review. Accepted papers will be
published in a separate bound symposium proceedings. Papers which
are deemed to have lasting or archival quality will be forwarded to 
Engineering with Computers, an International Journal for Computer Aided
Mechanical and Structural Engineering, for potential publication.

Deadlines for Technical Papers:

Submission  of  abstracts:  November  1, 1992
Submission  of  four  copies  of  paper: January  15,  1993
Notification  of  acceptance  to  authors:  March  1,  1993
Submission  of  final  paper  on  mats: April  1,  1993

Symposium Technical Program Organizer:

Kincho  H.  Law
Department  of  Civil  Engineering
Stanford University
Stanford,  California  94305-4020
Phone:  (415)  725-3154
Fax:    (415) 725-8662
E-mail: law@cive.stanford.edu
Newsgroups: sci.engr.mech