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  1. ActiveSolar05

    Hydronic floor heat vs. overhead radiant tubes

    I would go with raidiant floor heat, PEX-A tubing. NOT PEX-B or PEX-C... 8 inches spacing for the tubes in slab, design a single "cooker" bay with radiant to melt off the trucks before bringing them inside. Insulate under the entire slab for your climate zone and don't be stingy... 2" thick...
  2. ActiveSolar05

    Duct metal thickness

    Just fold your sheet metal so you have 1 or 2 longitudinal Ribs down the length of the duct on each face..... jrr
  3. ActiveSolar05

    Geosource Heating

    Hi; FIRST> You DO NOT want to use HDPE. It develops cracks when coiled like this. You want PEX-A, engel method. This is a cross linked polyethylene made with a hydrogen peroxide process yielding more cross linking than PEX-B, or PEX-C. See http://www.REHAU.com Second> Use a vertical...
  4. ActiveSolar05

    "Aircraft Weight Distribution"

    I know there is a facilities guide for the 737. Second 5% on the front gear might be "on landing" not taxing around at sub flight speeds...... 5% seems kind of light... Third, while most airliners have under wing engines that drop straight down on removal, you may run into military aircraft...
  5. ActiveSolar05

    AutoCAD Edit Time Tracking

    I am a handicapped consultant. I have good days and bad days. Dumb AutoCAD keeps track of how many hours:minutes:seconds the drawing file has been open for editing. I don't want my clients to know when I'm good, bad off, or giving them a break and I send the dwg files to them as Email...
  6. ActiveSolar05

    Autocad plotting problems

    I think you are limited to 256 characters including drive and path name, file name...... and they want us to pay for this thing every 2 years.... are the updates meaningful?
  7. ActiveSolar05

    Grade 5 Pin Hardware

    How about a bushing?? No rubber just a short tube outside the bolt.......
  8. ActiveSolar05

    Formula for calculating liquid volume

    BTW there are 7.48 gallons per ft**3 so now you can get the water weight from the gallon thingy.........
  9. ActiveSolar05

    Solar Radiation tables(SHGF) Southern Hemisphere

    "The Passive Solar Energy Book Expanded Professional Edition" E. Mazria; Rodale Press 1979. ISBN 087857-238-4 page 444 through page 637.... enjoy!!
  10. ActiveSolar05

    Computer Heat Gain

    Look on the SEAGATE hard disk mfg site; they give case temps for all of their drives >> DElta T, A, >> Watts heat... Second, look at the ANTEC site; some power supplies coming out now are E-80 rated; at least 80% efficient at load values between 20% and 95%. The Intel Core 2 Duo E6700...
  11. ActiveSolar05

    maximum angle of aileron and rudder?

    LQQK in "Theory of Wing Sections" by Abbott & Von Doenhoff. Dover edition is a nice softback : ISBN 0-486-60586-8. LQQK at page 488 & 489 this is the *classic* NACA 4412 wing shape. See the moment coefficient vs angle of attack ? you have to provide that down force (on a rear tailed aircraft)...
  12. ActiveSolar05

    Femap - meshing

    Have you tried bi-linear bricks??
  13. ActiveSolar05

    Decoding Foreign Rebaah thread582-164187

    Try These Two URLs........ I'm gone. http://www.techstreet.com/cgi-bin/detail?product_id=44052 Type Concrete Rebar into the search box at this URL: http://www.techstreet.com/cgi-bin/results
  14. ActiveSolar05

    Decoding Foreign Rebaah thread582-164187

    Try Gooogle: DIN Metric Rebar JP Metric Rebar US Metric Association: http://lamar.colostate.edu/~hillger/articles.htm Background Info on Concrete http://www.jsce.or.jp/committee/concrete/e/newsletter/newsletter02/newsletter02f/7-Mongolia%20(Hsu).pdf Japanese Society of Civil Engineers...
  15. ActiveSolar05

    Decoding Foreign Rebaah thread582-164187

    1) 0.101 MPa equals 15 psi; 2) SO 15/0.101 = X/560 =>> X= 83,168.3168 .....psi This is a little high for "normal" construction steel, if the 560 mark is really the MPa marking. 3) There are at least 3 different Metric systems, and I'm nnot talking about mks versus cgs; I'm talking about...
  16. ActiveSolar05

    Diesel Engines

    Are you running a waste gate to control turbo intake pressure via dumping exhaust? Is W/G sticking or slow to react? You say there are two turbos on each engine both running off a single exhaust manifold; but on the turbo compressor side are they one-after-the other for more pressure or...

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