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Upcoming project at school

Discussion in 'Refrigeration' started by doc havoc, Oct 23, 2017.

  1. doc havoc

    doc havoc A cunning linguist

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    9,524
    Location:
    45.780245, -91.731582
    I have a cinder block space/room attached to my shop at school. It currently is not "my" space, but will be in January. Inside dimensions are 8' x 22' with a 9' concrete ceiling. It used to be a storage room for varnishes, paints, stains and other flammable/combustible materials. My plan is to put a refrigeration system and heating/humidification system in it to make it a half assed climate controlled environment. I would like to put my condensers/heat pump outdoor units in there and be able to create a 35 degree ambient or a 95 degree ambient, or whatever other temperature/condition I desire. The blocks are not insulated and the interior will not be insulated, however, I only need to maintain temps for short periods of time so I'm not overly concerned with efficiency. My question is, how do I begin to go about sizing the refrigeration system?
     
  2. pecmsg

    pecmsg Junior my ASS

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    Location:
    Eastern LI
    Concrete or cinder blocs?
     
  3. pecmsg

    pecmsg Junior my ASS

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    Eastern LI
    Is there chilled water or tower water available for a water source heat pump?
     
  4. doc havoc

    doc havoc A cunning linguist

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    9,524
    Location:
    45.780245, -91.731582
    Hollow cinder blocks. No tower water available. I figured a medium temp reefer system and a gas furnace ducted in to the room, drawing return from outside the space to prevent overheating the furnace when I boost the room temp to 95 degrees. I would of course have to have a relief damper to avoid over pressurizing the space.
     
  5. Catpower

    Catpower The Crowd Pleaser

    Messages:
    22,470
    Location:
    in the Cabana
    In January all you would have to do is pull in outside air
     
  6. doc havoc

    doc havoc A cunning linguist

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    9,524
    Location:
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    The room is quite "land locked".
     
  7. HMD

    HMD does it matter?

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    here
    punch a hole in the roof.
    like jay's shed
     
    Texas-Tech, Catpower, jpb2 and 2 others like this.
  8. MOFO the psychic gorilla

    MOFO the psychic gorilla sitting on two achers

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    I'm not a HP guy but why not just a second equally sized HP system just piped in the reverse orientation?
     
  9. crackertech

    crackertech assholiness *

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    I know nothing :D
     
  10. doc havoc

    doc havoc A cunning linguist

    Messages:
    9,524
    Location:
    45.780245, -91.731582
    I contemplated that. Use the outdoor unit to draw the heat out of the space and the air handler/indoor coil outside of the space. That's an option, but I could certainly use more reefer equipment. All I have are 1 and 2 door reach ins. This could even be set up with 2 evaps, 1 LT and 1 MT.
     
  11. crackertech

    crackertech assholiness *

    Messages:
    92,185
    Location:
    Fl/IN/Ga/Ms/TX/NJ/VA/NC/TN
    Torry you need one of these in the class room
     

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  12. MOFO the psychic gorilla

    MOFO the psychic gorilla sitting on two achers

    Messages:
    1,944
    In that case just keep adding systems till you get there :inout::D
     
    doc havoc likes this.
  13. doc havoc

    doc havoc A cunning linguist

    Messages:
    9,524
    Location:
    45.780245, -91.731582
    No. No I dont. Absolutely naught!
     
  14. HMD

    HMD does it matter?

    Messages:
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    Location:
    here
    we know
     
  15. knave

    knave Undeterred

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    NWWI
  16. R/HVAC

    R/HVAC selfemployed

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    Location:
    W-S , NC
    Just put the 1 & 2 door reach-ins inside the building. They should warm it up in a few days. Insulate the walls with Styrofoam panels. Use water based adhesive.
     
    doc havoc likes this.
  17. pecmsg

    pecmsg Junior my ASS

    Messages:
    21,738
    Location:
    Eastern LI
    15,000 BTU/h should do it under normal situations. There will be condensation issues so do as Scott said insulate the walls. Could even make it a project on building a walk in.

    One unit for cooling evap inside the space cond unit out.
    One unit for heating cond unit inside the space evap out.
     
    doc havoc likes this.
  18. Snoring Beagle

    Snoring Beagle Need Little - Want Less - Love More

    Messages:
    11,148
    The start of an environmental test chamber... cool!

    Blast chiller and infrared. Go Bigly.
     
    Catpower likes this.
  19. MOFO the psychic gorilla

    MOFO the psychic gorilla sitting on two achers

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    1,944
    Ya good test to see which students can repair a HP in 20° with a couple of fans blowing up their ____ :p
     
  20. Rather B Riding

    Rather B Riding Behind bars

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    616
    Some block walls are insulated. They pour vermiculite down the block as they build the wall. I would still line the walls with foam insulation panels and something for a vapor barrier. Your Heat pump would not have to be that big. 18k is more than enough.
     
    doc havoc likes this.