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  • Evaporative Cooling Towers

    We all know the typical refrigerant chiller.. and Deltec has a Eco Cooler that works off of a Cooling Tower. Ive been looking around for Cooling Towers and came across some info:

    Source: http://www.arctichill.com/CoolingTower.htm

    For many applications, chilled water is not required. All that is needed is an evaporative cooling tower and a pumping system to deliver 80-85°F water to cool your process equipment. This is easily achievable in low humidity climates. For larger commercial plants, we can provide evaporative towers and matching liquid tanks and pump systems. ArctiChill cooling towers are designed to be reliable, serviceable and low cost to purchase and maintain.



    A good description:

    Source: http://www.cti.org/whatis/coolingtowerdetail.shtml

    A cooling tower is a heat rejection device, which extracts waste heat to the atmosphere though the cooling of a water stream to a lower temperature. The type of heat rejection in a cooling tower is termed "evaporative" in that it allows a small portion of the water being cooled to evaporate into a moving air stream to provide significant cooling to the rest of that water stream. The heat from the water stream transferred to the air stream raises the air's temperature and its relative humidity to 100%, and this air is discharged to the atmosphere. Evaporative heat rejection devices such as cooling towers are commonly used to provide significantly lower water temperatures than achievable with "air cooled" or "dry" heat rejection devices, like the radiator in a car, thereby achieving more cost-effective and energy efficient operation of systems in need of cooling. Think of the times you've seen something hot be rapidly cooled by putting water on it, which evaporates, cooling rapidly, such as an overheated car radiator. The cooling potential of a wet surface is much better than a dry one.

  • #2
    dude, find out if these things are designed to tolerate saltwater....could be a great option for me. I'm going to locate my chiller outside and it's not all that humid here.....
    10x3x2 FOWLR (for now)
    BK400ext
    RD12 return, 2 RD12 closed loop, wavebox with extension
    MRC kalkmixer
    IKS

    Comment


    • #3
      Originally posted by moonpod
      dude, find out if these things are designed to tolerate saltwater....could be a great option for me. I'm going to locate my chiller outside and it's not all that humid here.....
      Will do! Im sure there are some out there for saltwater. I will dig it up. Imagine the cost savings in electricity.

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      • #4
        Chuck...
        Once again, Deltec have shown the way to reducing water temperature economically in the modern salt and fresh water aquarium.
        http://deltecaquariumsolutions.com/coolers.php


        Since I don't know the design and how it produces surface area for evaporation I might be headed the wrong way with this.
        I considered using a tower-like chamber and a fan to reverse flow air up and out. I came close to carrying through with it until I realized I'd just be creating a large wet-dry filter. If cooling the water direct through evaporation I see no way to avoid that. You need surface area for the heat transfer.
        You would have to be cooling a reservoir of not-from-the-tank water and transferring the heat from the tank water into it. That means you would need a large reservoir with some sort of tubing with good transfer properties otherwise the reservoir would need to be huge since your temp differential will be minimal.

        SteveU
        “People are very open-minded about new things - as long as they're exactly like the old ones.”
        ...Charles F. Kettering

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        • #5
          This one you can rent for marine water. They are out there.. but looking for one that is reasonable for home use.

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          • #6
            Uh....yeah....that don't look so reasonable. I'm bugging Doug of Deltec. Since they've already got a premade evaporative unit for tanks....wondering....why he hasn't brought them over....
            10x3x2 FOWLR (for now)
            BK400ext
            RD12 return, 2 RD12 closed loop, wavebox with extension
            MRC kalkmixer
            IKS

            Comment


            • #7
              Originally posted by moonpod
              Uh....yeah....that don't look so reasonable. I'm bugging Doug of Deltec. Since they've already got a premade evaporative unit for tanks....wondering....why he hasn't brought them over....
              Its probably because of the big price tag. Let me see how much they are overseas.

              ok.. maybe not.. I priced out the Deltec Eco Cooler 2000l with thermostat and it came close to $2K. The 2000 liter one is the one we would get since it support up to 530g's. That price was from a vendor in the UK.

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              • #8
                OK had a talk with Doug. Ecochillers are going to be at macna (or whatever the DC meeting is). If they go over well and Doug is convinced he will bring 'em over. Conceptually, SteveU is right. They are essentially DLS wetdrys with fans. I dunno if they really have the "negative" impacts we associate with wetdrys, but given the electrical differences....If the 2000l unit really is 2000bux, that places it about 40% or so more than a 1hp arctica, so given the huge difference in electrical consumption it's probably a viable product if your setup can work with it. I mean one is 5.5 amp on a 220 line. The other isn't even a half an amp on a 110 line...
                10x3x2 FOWLR (for now)
                BK400ext
                RD12 return, 2 RD12 closed loop, wavebox with extension
                MRC kalkmixer
                IKS

                Comment

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