Friday, October 22, 2021

Drying rack, Mark II

 


20" box-fan pushing up from the bottom. Ducting in the back from some recycled paneling. Grocery bags stuffed into the leaks.

It is not moving as much air as I would like. The reason to "push" rather than pull is that the heat from the motor adds to the drying power in "push" mode. Not a big thing but every little bit helps.

One thing at a time.

6 comments:

  1. Maybe put a conventional light bulb or heat lamp bulb below the fan?

    -Pinky

    ReplyDelete
    Replies
    1. A string of incandescent Christmas lights is another possibility.

      Delete
  2. Are you venting the box externally, or just circulating air in the closed container?

    One of those little electric mini-dehumidifiers under the fan might pull a fair bit of moisture out if you are running a closed container.

    Also, box fans tend not to be a very high static pressure fan design. Decent flow, but if there is any resistance to the air movement they drop off in effectiveness pretty quickly. The nuts on the bottom of the bottom shelf probably get lots of air, but the rest are probably not seeing a lot.

    ReplyDelete
    Replies
    1. Venting externally. Comes in at the back. Ducted to the bottom.

      I have a squirrel-cage "floor drying" fan but have to figure out how to plumb it. More head is almost always a good answer.

      Delete
  3. I'm seeing leaves and grass, so I guess it's outside. If it's not insulated: Would it be worth painting it flat black for albedo-assist?

    ReplyDelete
  4. Crooked stack on top to vent air and a small dehumidifier on the bottom.

    ReplyDelete

Readers who are willing to comment make this a better blog. Civil dialog is a valuable thing.