
Automation of co2/o2 exchange
#1
Posted 27 February 2005 - 02:45 AM
#2
Posted 27 February 2005 - 03:04 AM
#3
Guest_Peter Cottontail_*
Posted 27 February 2005 - 03:47 AM
#4
Posted 27 February 2005 - 09:56 AM
#5
Posted 27 February 2005 - 10:52 AM
that is after all
one of its' primary functions.
now are we talking
bulk substrate runs
or casing runs here
as they are different ?
a casing layer should just be grown thru
not fully colonized
so i like a little air just to keep the molds at bay,
i'll take a day or two delay in pinning
over a tray of green
any day of the week.
#6
Posted 05 April 2005 - 04:36 AM
I am at the point where I am probably going to be fruting 5 or 6 of these domes at any one time. As you can imagine, this will drastically increase the amount of time per day it takes me to fan and mist. I have a nice airpump with 4 air outlets that I use to run my hydroponics resevoirs off of. I was wondering if I could run an air tube from this into each of domed trays and set it to run once every hour. Would this be enough to push the co2 out of the tray (through the crack between the tray and the lid)? Can anyone think of a way that this 4 outlet pump might be utilized in automating the fanning process?
#7
Posted 05 April 2005 - 07:25 AM
Yes, hook 4 hoses to it and the domes and put it on a timer. If it doesn't move much air, just run it all the time.I fruit my cakes in footlong and half foot wide trays with 7 inch plastic domes. I fill the bottom of the tray with about an inch of pertlite and fan and mist a few times daily.
I am at the point where I am probably going to be fruting 5 or 6 of these domes at any one time. As you can imagine, this will drastically increase the amount of time per day it takes me to fan and mist. I have a nice airpump with 4 air outlets that I use to run my hydroponics resevoirs off of. I was wondering if I could run an air tube from this into each of domed trays and set it to run once every hour. Would this be enough to push the co2 out of the tray (through the crack between the tray and the lid)? Can anyone think of a way that this 4 outlet pump might be utilized in automating the fanning process?
#8
Posted 05 April 2005 - 09:18 AM
my plan was to utilize some type of filters (maybe hepa) and tubing, and a fan.......i was thinking that having the fan sucking air OUT of the rubbermaids would be better than blowing in....... with a small hepa or some type of filter on each hole in the tubs......i think humidity could maintain itself nicely with the perlite and morning/night-time misting.....
i was also thinking of having a hepa blowing into a set of multiple hoses that run into the lower part of the tubs with either multiple small air outlets at the top, or one bigger air outlet with a filter up high on the tote.....
i have also tossed aroung the idea of some plastic that will lift and fall with the air exchange, as the air goes it blows up and allows circulation/exchange, and as the air stops it falls gently over the filtered hole and provides a little more closure to keep RH optimum......
but i dont know, i got to figure this one out as well.......
#9
Posted 05 April 2005 - 09:49 AM
do you think a cool mist/ultrasonic could work for automation of air exchange for multiple tubs
i know some people use the humidifiers so that humidified air goes in thus reducing the risk of RH becoming too low.......
#10
Posted 05 April 2005 - 09:50 AM
#11
Posted 06 April 2005 - 02:12 PM
#12
Posted 06 April 2005 - 05:40 PM
#13
Posted 06 April 2005 - 05:47 PM
- Felix Black likes this
#14
Posted 06 April 2005 - 10:25 PM
SGT FRP, i will construct something myself and post pics sometime soon........
#15
Guest_Peter Cottontail_*
Posted 07 April 2005 - 03:20 AM
#16
Posted 07 April 2005 - 11:24 AM
Running the cool mist results in lots more work IMO. It's a fire hazard if it runs out of water. Can result in too much water in the tub and so on. If you want lots of humidity just increase your perlite. I use 3 inches in my tub and have no problems at all. Much simpler than the cool mist setup that I originallly started iwth.
#17
Posted 07 April 2005 - 12:16 PM
#18
Posted 12 April 2005 - 02:57 AM
my terrarium to automate the air exchange process.
My main question is:
Should I have in on full power and a timer (15 minutes per hour?) or should I drop the speed and run it continuously?
Will it make any difference?
I'm intending to build a small filter box, and have the fan draw the air through this and blow down towards the bottom of the tank. I'm thinking that the downdraft of air will mix any CO2 collecting at the bottom into the main volume of the tank.
I could also mount the fan in a duct and suck air from the bottom of the tank, but that might make filtering the incoming air problematic (many small gaps for the air to get in through).
Any suggestions or advice welcome. :)
#19
Posted 12 April 2005 - 04:12 AM
http://www.kaz.com/h..._humidifier.htm
#20
Posted 12 April 2005 - 05:28 AM
Yep, I have one of those (same model, different brand), and it just happens that 22mm drainpipe fits neatly into the outlet when you remove the nozzle :)
The fan in the unit delivers about the right amount of air, and if it's the only source, about the right humidity (turned to minimum). However, I use water in the bottom of the tank for both temperature and humidity, so I'd rather not use another source of moisture if I can avoid it.
The unit's pretty useful elswhere too, so I don't really want to tie it up.
I have used it as an air exchanger and humidifier for the terrarium, but it takes up a lot of space and I'd rather have something I can fit under the fishtank hood.