Home | About Us | Contact Us


Koi Forum - Koi-Bito Magazine straight from Japan
Page 1 of 7 123 ... LastLast
Results 1 to 10 of 63
Like Tree5Likes

Thread: Bringing down pond temperature with misting nozzles and fans

  1. #1
    Sansai nivek's Avatar
    Join Date
    Aug 2012
    Posts
    194

    Bringing down pond temperature with misting nozzles and fans

    It has been extremely hot over the last few weeks so I decided to do something about it. Fixed a few misting nozzles to the top of my pond cover and have 2 high speed fans (thermostat controlled) blowing right across the pond surface. Just fixed the nozzles today so will have to see the effect tomorrow. Ambient temperature is around 33 degrees celcius. (Since the time I started this article, the temp has rose to 35C - 11 Mar)

    Tosai_Sunny likes this.

  2. #2
    Daihonmei MikeM's Avatar
    Join Date
    Dec 2003
    Location
    Orlando, Florida
    Posts
    11,128
    Looking forward to your results after just a day.

  3. #3
    Sansai nivek's Avatar
    Join Date
    Aug 2012
    Posts
    194
    Overnight temp dropped to 25.9C. Will continue to monitor the next few days and update

    Bringing down pond temperature with misting nozzles and fans-img_20140228_081801.jpg

  4. #4
    Daihonmei MikeM's Avatar
    Join Date
    Dec 2003
    Location
    Orlando, Florida
    Posts
    11,128
    Very good. I doubt this approach will prove to be able to do what a chiller can do, but if it can materially reduce high temperatures at a reasonable cost, it may well catch on. Makes me wonder why it hasn't been a topic of discussion before.

  5. #5
    Nisai
    Join Date
    Apr 2009
    Location
    S. Florida
    Posts
    74
    Where do you live?

  6. #6
    Oyagoi
    Join Date
    Oct 2006
    Location
    Forreston,IL
    Posts
    1,073
    i thought there was some post by Ray Jordan from Texas running mister for his pond in summer ???

  7. #7
    Daihonmei MikeM's Avatar
    Join Date
    Dec 2003
    Location
    Orlando, Florida
    Posts
    11,128
    Katie: I believe Nivek is in Malaysia.

    Ray uses a mister system. I believe it is more to make it comfortable to be around the pond in Texas heat than cooling the pond water. I wonder if it has an effect on water temperature?

  8. #8
    Sansai nivek's Avatar
    Join Date
    Aug 2012
    Posts
    194
    Mike, you're right I'm from Penang, Malaysia. The recent increased in electricity tariff has made installing a chiller not a viable option so I thought up of this system, copying the concept from my marine tank which has a fan being able to pull down its temp to below 25C. However that's indoors and only on a 5 gal pico tank.

    So misters were added to increase the effectiveness of the evaporative cooling method due to the sheer volume of the pond compared to the tank. I took the liberty to measure the air temp at the surface as compared to the ambient temp and am pleased that it was around 24.6C vs 33C. That's a huge difference for me as the humidity over here is quite high at 70 and misters tend to work better in lower humidity areas.

    Bringing down pond temperature with misting nozzles and fans-img_20140302_050659.jpg

    So far after 2 days of testing, the results have been pretty encouraging as my pond temp no longer exceeds 27C even on such a hot spell. The lowest I have obtained so far was 25.7C but I increased the amount of mist yesterday so hope to see better results today.

    Bringing down pond temperature with misting nozzles and fans-img_20140302_050809.jpg

    Water to the mister is supplied directly through my daily water trickle in so there was no need for an additional pump and no water loss from the pond.

  9. #9
    Jumbo Appliance Guy's Avatar
    Join Date
    Dec 2011
    Location
    Pensacola, FL
    Posts
    754
    Interesting. I've been trying to wrap my head around how this works. ???? I get that the mist is cooling the surrounding air. But I get lost on how the mist would affect the pond water temperature. I can reason that the fan is cooling the water through evaporative cooling, but how does the mist come into play??? I'm curious if the results would be congruant without the misting. It's a paradox of sorts- the mist is actually increasing the humidity, and therefore reducing the efficiency of the evaporative cooling process. Kinda weird.

    Glad you are seeing the results you hoped for.

  10. #10
    Sansai nivek's Avatar
    Join Date
    Aug 2012
    Posts
    194
    Tks. Basically without mist, I'm blowing 33C air over the pond surface vs 24.6C air with mist. Therefore the improved cooling effect. Similar as cooling down a tank in an air conditioned room vs one without.

Page 1 of 7 123 ... LastLast

Similar Threads

  1. Replies: 10
    Last Post: 09-02-, 01:07 AM
  2. Koi fans in NYS?
    By Jake Levi in forum Main Forum
    Replies: 0
    Last Post: 06-30-2010, 07:59 PM
  3. Any Glass Harp fans here?
    By Ethan25 in forum Outside
    Replies: 0
    Last Post: 09-23-2009, 11:24 AM
  4. heads up for ochiba fans
    By dick benbow in forum Main Forum
    Replies: 31
    Last Post: 01-26-2007, 12:11 PM
  5. Bringing Koi From Canada To US
    By MikeM in forum Main Forum
    Replies: 7
    Last Post: 01-30-2006, 11:47 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Articles - Sitemap - FAQs and Rules

KB Footer Graphic
Straight from Japan... For the serious hobbyist!
All content and images copyright of: Koi-bito.com