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Thanks to all who posted. The information has been very helpful. It looks like the system will employ an asynchronous generator.
Thanks again!
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tsgrue: site engineering, stormwater
management, landscape design, ecosystem
rehabilitation, mathematical simulation
http://hhwq.blogspot.com
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Electric Wizards,
A few notes:
1) Properly designed and installed overshot, backshot, and breastshot waterwheels are very efficient, with 70% to 95% able to be realized over a wide power band. These are not worse or better than turbines, each appropriate on a site-by-site case-by-case...
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People That Know Electricity,
I appreciate all your comments and expertise. It is very beneficial, to say the least. A few bits of information:
1) It is possible to design and install a waterwheel which would have constant speed over the input flow ranges, but in practice it would be rather...
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People That Know Electricity,
I am working on the design for a new microhydroelectric power generation station. The station will be located at an existing pond in a small, urban watershed. The pond has an existing dam with 9+/- feet of available head. The base streamflow is 3+/- cfs and the...
NC Geodetic Survey should be able to provide this to you...
www.ncgs.state.nc.us
tsgrue: site engineering, stormwater
management, landscape design, ecosystem
rehabilitation, mathematical simulation
http://hhwq.blogspot.com
.
Try some W3 searches for "earth air heat exchanger" and you'll get lots of hits. These are commonly used in many parts of the world...
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tsgrue: site engineering, stormwater
management, landscape design, ecosystem
rehabilitation, mathematical simulation
http://hhwq.blogspot.com
.
Water moves from a location of a higher energy state to a location of lower energy state along 'the path of least resistance'. This is the kind of stuff that soil and water focused agricultural engineers generally do - and do well...
http://policy.nrcs.usda.gov/RollupViewer.aspx?hid=17092...
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SMath Studio now supports units. It appears to be the best alternative to Mathcad.
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tsgrue: site engineering, stormwater
management, landscape design, ecosystem
rehabilitation, mathematical simulation
http://hhwq.blogspot.com
.
Cowski - Thanks very much, I will try out the procedure you described.
Everyone else - Thanks for input!
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tsgrue: site engineering, stormwater
management, landscape design, ecosystem
rehabilitation, mathematical simulation
http://hhwq.blogspot.com
.
My goal is fairly straightforward, to enter a 'big, long, ugly equation' into a spreadsheet without making parentheses or typographical errors. I am really bad for making such errors and it takes me some time to track down what I've done - usually resorting to splitting the equation into...
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IDS - You are correct. The aim of the 'excercise' is "...to take an equation in "math style" (presumably from some equation editor) and convert it into a string that could be pasted directly into a spreadsheet."
hp48 calculators (the best calculators ever made, especially the 's' series!)...
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I have EMU48 and some of the ROMs may work, but there is at least one bug with parentheses in the EMU48 ROM I employed, pretty much preventing its usefulness. I was hoping someone knew of an easily available solution. I've used Mathcad since version 6 and regularly use several various other...
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Sorry for the poor explanation. I would like to find a software application that would allow me to enter equations 'math style' (see Format 1 on uploaded file) - as can be done with Mathcad - and have the software application convert the equation to 'inline' (see Format 2 on uploaded file)...
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Does anyone know of a software package that will convert big, long, ugly equations entered 'math style' into 'spreadsheet style'? My hp48 can do this using the equation editor and then placing the equation on the stack, but it is a cumbersome process. Does this make sense? Any help is...
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The most 'reasonable' numbers I've received (in terms of my trust in them), is from $4k to $9k, with $5k being around the most typical. The area is sand generally to 300ft-600ft, rock thereafter - 48hr test.
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tsgrue: site engineering, stormwater
management, landscape design, ecosystem...
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I have always seen geotechnical do the drainage design, though I'd think the civil would have more background than the structural. If your not familar with the process, I suggest subcontracting a agricultural drainage engineer - it would pretty much be straightforward to one of them.
...
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Does anyone have pricing information for geothermal well tests in the southeast coastal plain of North Carolina, South Carolina, and/or Georgia? I'm getting widely different numbers from different sources. This is for a single 400ft well test to determine thermal conductivity, thermal...
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If you are in the US, contact your county cooperative extension agent. They can put you in touch with one or more experts in the subject which can provide you with assistance and information.
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tsgrue: site engineering, stormwater
management, landscape design, ecosystem
rehabilitation...
