Search:

Type: Posts; User: KCA

Page 1 of 3 1 2 3

Search: Search took 0.00 seconds.

  1. Replies
    12
    Views
    2,187

    True. It may not be. This is really just an...

    True. It may not be. This is really just an example of that combo assuming a 58CV furnace.

    Anyway, the point was to provide the AHRI site to give the OP the ability to look up the combinations.
    ...
  2. Replies
    12
    Views
    2,187

    You can look up ratings here: ...

    You can look up ratings here:

    http://www.ahridirectory.org/ahridirectory/pages/ac/defaultSearch.aspx

    The last combo you posted in the original post looks like AHRI# 3045311

    SEER = 13.5
    ERR=...
  3. Replies
    20
    Views
    5,225

    The nitrogen will dry the system, but not because...

    The nitrogen will dry the system, but not because it abosrbs the moisture or reacts with it.

    Say you had a 1 cu.ft container filled with air at 0% RH. Then say you evaporate 1 oz of water into it....
  4. Thread: Heat

    by KCA
    Replies
    9
    Views
    416

    classical physics: energy cannot be created nor...

    classical physics: energy cannot be created nor destoryed. You just change the form. This might be burning fuel (chemical energy) use to heat water, steam expands against turbine blades (mechanical...
  5. Replies
    24
    Views
    6,312

    On the calculator, I did verify that it shows...

    On the calculator, I did verify that it shows exactly what I got, so it simply uses the ideal gas law (compressibility not accounted for). This is fine as the compressibility factor wouldn't change...
  6. Replies
    24
    Views
    6,312

    Sorry about that. :) In the real world,...

    Sorry about that. :)

    In the real world, nothing is perfect. However, nitrogen behaves pretty close to ideal. I'll have to look up what the compessibility factor is at these higher pressures...
  7. Replies
    24
    Views
    6,312

    No gases are truly ideal, but nitrogen is close...

    No gases are truly ideal, but nitrogen is close to ideal at atmospheric pressure and near room temperature.

    Ideal gas law is: PV=nRT

    For real gases, it is: PV=ZnRT, where Z is the...
  8. Replies
    4
    Views
    1,993

    Here's what that gauge can do: Digital...

    Here's what that gauge can do:

    Digital pressure gage, range 30" Hg to 0 psi, selectable engineering units: -14.70 psig, -1.033 kg/cm², -1.013 bar, -29.93" Hg, -33.94 ft w.c., -101.4 kPa, -235.2...
  9. Replies
    4
    Views
    1,993

    Using bar isn't going to be accurate enough for...

    Using bar isn't going to be accurate enough for the job. See if you have Pa, mTorr, microns, etc.

    1 bar is 14.5 psia

    Assuming the bar setup is measuring psig (reads 0 when no vacuum present),...
  10. Replies
    26
    Views
    2,462

    I bet there was no load calc done. I'm just north...

    I bet there was no load calc done. I'm just north of you (central VA) and my calculated cooling load is 2.5 ton. This is a 43 year old house, single pane glass, 3300 sqft (2/3 of that being above the...
  11. Replies
    100
    Views
    3,902

    Yep. Back in the 70's (with the energy crisis),...

    Yep. Back in the 70's (with the energy crisis), France said they didn't want to rely on oil/nat. gas for electricity. Parts of France are even higher than 78% nuke. In the southern part of France, it...
  12. Replies
    100
    Views
    3,902

    Currently, due to the economy, electrical demand...

    Currently, due to the economy, electrical demand is down a bit. However, nuke is still moving forward.

    Two new units (AP1000) are being built at the Vogtle site:
    ...
  13. Replies
    100
    Views
    3,902

    There are improvements on the fission nuclear...

    There are improvements on the fission nuclear power design. In terms of a new energy source, fusion is probably the only "new" source out there that could really be used to generate power in larger...
  14. Replies
    100
    Views
    3,902

    Nope. You are thinking of the Large Hadron...

    Nope. You are thinking of the Large Hadron Collider (LHC). This is a very large accelerator that slams particles into each other at high energy and creates new particles in the process.

    ITER is a...
  15. Replies
    100
    Views
    3,902

    If you guys are interested in real fusion, you...

    If you guys are interested in real fusion, you should check this out:

    www.iter.org

    This is the largest fusion reactor ever built. We have to wait a bit to see it work. First plasma not expected...
  16. Replies
    100
    Views
    3,902

    Correct. As I said, the results could not be...

    Correct. As I said, the results could not be reproduced. Whether it actually happened doesn't really matter if the results could not be reproduced. It could have been a matter of that they believed...
  17. Replies
    100
    Views
    3,902

    Here's some additional info too: ...

    Here's some additional info too:

    http://en.wikipedia.org/wiki/Cold_fusion
  18. Replies
    100
    Views
    3,902

    Although many things are possible (even if we...

    Although many things are possible (even if we don't know/understand now), for me (and others) to believe it, the experiment has to be repeatable. It would be like you working on a condensing unit,...
  19. Replies
    100
    Views
    3,902

    The explosions were due to hydrogen building up...

    The explosions were due to hydrogen building up in the outer building. This building is basically just a roof/enclosure for the plant and is not meant to contain releases. The fact that it blew up...
  20. Replies
    100
    Views
    3,902

    Right. Cooling water is #1. With the plants in...

    Right. Cooling water is #1. With the plants in Japan, the problem wasn't really due to a lack of pumps, but a lack of power instead. Normally, there are two independent connections to the electrical...
  21. Replies
    100
    Views
    3,902

    With Japan, what I find impressive is how well...

    With Japan, what I find impressive is how well everything stood up to the disaster. It is really pretty impressive when you thing about it. A 9.0 quake plus a giant wave of water...some serious...
  22. Replies
    100
    Views
    3,902

    The initial testing rig was non-nuclear. Scaled...

    The initial testing rig was non-nuclear. Scaled down and used electric heaters (~700kW) to test operation.

    OSU does have a nuclear research reactor (TRIGA, mkII). This is a 1.1 MW steady-state...
  23. Replies
    100
    Views
    3,902

    I had something written up, but I lost the...

    I had something written up, but I lost the post...:(

    Let's try again:

    Calvert Cliffs: Not exactly. I haven't been to the site, but have worked a bunch on a new design that they would like to...
  24. Replies
    100
    Views
    3,902

    Okay. Thorium fuel cycle. I figured that you...

    Okay. Thorium fuel cycle. I figured that you might have been talking about fusion. Anyway, thorium has some advantages. However, everything is setup for a uranium cycle and there isn't really a...
  25. Replies
    100
    Views
    3,902

    Not yet. I'll take a look at them later. Got to...

    Not yet. I'll take a look at them later. Got to run now.
Results 1 to 25 of 73
Page 1 of 3 1 2 3
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event