Page 6 of 9 FirstFirst 123456789 LastLast
Results 66 to 78 of 112
  1. #66
    Join Date
    Mar 2009
    Location
    Mount Holly, NC
    Posts
    7,459
    Post Likes
    I think we all understand your idea...
    The problem lies in the implementation.

    You are planning to have a 1000 gallon storage tank of water...

    Then have a pump cycle the water into a heat exchanger to chill the water through the supply air in the home.

    You do understand that depending on how high the water flow is, the supply air trying to cool your home will dramatically raise in temp, causing your house to cool significantly slower... It may actually raise your home temp.

    Water has a lot of heat energy... and it transfers it rapidly.
    The TRUE highest cost system is the system not installed properly...

    Find a HVAC-Talk Contractor by clicking here

    Do you go to a boat repairman with a sinking boat, and tell him to put in a bigger motor when he tells you to fix the holes?

    I am yourmrfixit

  2. #67
    Join Date
    Aug 2016
    Posts
    82
    Post Likes
    Thread Starter
    I made a LOT of progress on my proof of concept this weekend! Below are some pictures, starting with the "before"...
    Attached Images Attached Images         

  3. #68
    Join Date
    Aug 2016
    Posts
    82
    Post Likes
    Thread Starter
    Once I add some additional support under the box for the blower, I will get that hooked up, then install the ducts. I ordered a air to water heat exchanger, but I haven't decided whether I should mount it before or after the blower. I have space for it on either side of the blower, so I'd really like to know whether there are any reasons to go one way or the other. Does the blower normally "push" through a coil, or does it sometimes "pull"?

  4. #69
    Join Date
    Jun 2014
    Location
    Dover, DE
    Posts
    10,645
    Post Likes
    Where are those ducts going out of the top of that box? Into the house?
    “I haven’t failed. I’ve just found 10,000 ways that won’t work.” - Thomas Edison

    “It’s not whether you get knocked down, it’s whether you get up.” - Vince Lombardi

    "In this house we obey the laws of thermodynamics" - Homer Simpson

    Local 486

  5. #70
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    15,735
    Post Likes

  6. Likes beenthere liked this post
  7. #71
    Join Date
    Aug 2016
    Posts
    82
    Post Likes
    Thread Starter
    Quote Originally Posted by rider77 View Post
    Where are those ducts going out of the top of that box? Into the house?
    There is one 12" return duct that will go to an upstairs bedroom, and two 10" supply ducts that will go to a downstairs hallway and an upstairs media room. The system will be sealed, and the air will be circulated by a Goodman MBVC1200 blower. I just need to figure out whether it would be better to push or pull the air through the air to water heat exchanger.

  8. #72
    Join Date
    Aug 2016
    Posts
    82
    Post Likes
    Thread Starter
    I also need to add some internal "air guides" or walls to optimize air flow across / through the mini-split. I want the mini-split to move its own air, so I do NOT plan to completely block air from bypassing it. I will control the speed of the MBVC blower, speed of the mini-split, and target temperature of the mini-split using a micro-controller (Arduino Tian), while monitoring multiple temperature sensors located inside the box. The same custom controller will monitor electrical load of the MBVC and mini-split (indoor and outdoor), in order to optimize efficiency.

  9. #73
    Join Date
    Aug 2016
    Posts
    82
    Post Likes
    Thread Starter
    Here is a sketch, showing the 2 locations I'm considering for the air to water heat exchanger. Obviously, I will need to build a water-tight drip pan under the coil.

    Name:  IMG_2146.jpg
Views: 118
Size:  123.2 KB

  10. #74
    Join Date
    Jun 2014
    Location
    Dover, DE
    Posts
    10,645
    Post Likes
    It is AGAINST CODE to move air into the living space from the garage. What your building there is illegal. And dangerous
    “I haven’t failed. I’ve just found 10,000 ways that won’t work.” - Thomas Edison

    “It’s not whether you get knocked down, it’s whether you get up.” - Vince Lombardi

    "In this house we obey the laws of thermodynamics" - Homer Simpson

    Local 486

  11. #75
    Join Date
    Aug 2016
    Posts
    82
    Post Likes
    Thread Starter
    Quote Originally Posted by rider77 View Post
    It is AGAINST CODE to move air into the living space from the garage. What your building there is illegal. And dangerous
    Yeah. BeenThere pointed that out last week, but that's not going to stop me from proving the concept. I wouldn't do this in someone else's house, but I won't hesitate to build it in mine. If it works as well as I hope, then I'll either relocate the system, or build whatever around it to make it compliant.

  12. #76
    Join Date
    Aug 2016
    Posts
    82
    Post Likes
    Thread Starter
    BTW, if the air flowing through the system in the garage is not mixed with the air in the garage at all (completely air tight), would that still be a code violation? I know that I have AC ducts running above the garage ceiling, which are just separated by some sheet rock from the garage space.

  13. #77
    Join Date
    May 2004
    Posts
    13,463
    Post Likes
    Thread moved

    This is clearly not AOP but an experimental build therefor seems like Members Inventions would be a better match.

    Note: Per warnings posted by our membership there are critical code issues here and we (HVAC-Talk.com) do not condone this procedure.

  14. Likes HVAC_Marc liked this post
  15. #78
    Join Date
    Aug 2016
    Posts
    82
    Post Likes
    Thread Starter
    Quote Originally Posted by Dad View Post
    Thread moved

    This is clearly not AOP but an experimental build therefor seems like Members Inventions would be a better match.

    Note: Per warnings posted by our membership there are critical code issues here and we (HVAC-Talk.com) do not condone this procedure.
    Okay. Thanks! I didn't know there was a member inventions forum.

Page 6 of 9 FirstFirst 123456789 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •