Ttystikk's vertical goodness

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chinuh man

Member
This is why I consider myself a student. I was convinced heat wouldn't be an issue even with all the lights. Calculations are needed. How are you currently cooling the room with the hps/mh in use? you feel switching to led would NOT lower the temp?
 
heckler73

heckler73

Well-Known Member
ttystikk said:
Like I said, there's a lot of things to think about...
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Indeed. How many strings, how many supplies...they all have to be mounted, too. That means extending the tube.
What's the practical radius to be covered (if doing a ring design). For example, if the sweet spot for a particular COB is 44cm, then it gives a practical circumference of ~2.75m (not including other COBs in the optical path, which would extend the radius). Collimation/Lensing?
 
ttystikk

ttystikk

Well-Known Member
chinuh man said:
This is why I consider myself a student. I was convinced heat wouldn't be an issue even with all the lights. Calculations are needed. How are you currently cooling the room with the hps/mh in use? you feel switching to led would NOT lower the temp?
Click to expand...
I'm currently using a centralized water chilling system that manages both air temps and RH as well as water temps in the RDWC. I'm not planning a big change in wattage expended, so I'm expecting my total heat load to remain about what it is.

As mentioned above, I'm running 860W CDM lamps on thousand watt magnetic ballasts. This is a very high quality of light for an affordable price.
 
zep_lover

zep_lover

Well-Known Member
ttystikk said:
Describe your design?
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i am building 20 individual lights.1 cxb3590 3.5k with a 50 watt chinese driver mounted to heatsink usa 10 inch profile cut at 5 inch length.i am mounting the cob with a ideal cob holder and a 80 degree lens . as of right now my test has changed again but i am planning on running 4 clones .all will be on 4x4 screens mounted vertically individually.on the first i am trying 4 lights spread evenly.on the second i am running 5 lights 4 corners and 1 in middle,on the 3rd i am running 6 but still have not decided on lay out for the cobs.the fourth will be 5 cobs since that is all i have left.i have been busy and will not have time to assemble the individual lights till hopefully next week.after that then i will start assembling the aluminium frames to mount the lights in.i should have the plant count to start the 4 clones vegging in a week or two.i just finished chopping 3 gsc and cleaning and reloading the flower box they were in.i also had to clean up and thin out the next flower box that just finished stretching.i am running the test with the cobs so i dont have to contort myself to fit in a 4x4 x6 foot high cabinet with 2 600 hps in the middle.i dont fit in there too well .if i use cobs on individual plants mounted to a screen mounted on a wall in a room it will be much easier accessing the plants.i want to see the weight difference on using more cobs.if the 6 is better efficiency then 4 or 5 i will do the next round with 6 ,7,8 per plant and so on till i reach optimal lighting.i like testing for myself and seeing what works the best.most everything you see about growing with leds is not like how we both grow vertically.
 
ttystikk

ttystikk

Well-Known Member
zep_lover said:
i am building 20 individual lights.1 cxb3590 3.5k with a 50 watt chinese driver mounted to heatsink usa 10 inch profile cut at 5 inch length.i am mounting the cob with a ideal cob holder and a 80 degree lens . as of right now my test has changed again but i am planning on running 4 clones .all will be on 4x4 screens mounted vertically individually.on the first i am trying 4 lights spread evenly.on the second i am running 5 lights 4 corners and 1 in middle,on the 3rd i am running 6 but still have not decided on lay out for the cobs.the fourth will be 5 cobs since that is all i have left.i have been busy and will not have time to assemble the individual lights till hopefully next week.after that then i will start assembling the aluminium frames to mount the lights in.i should have the plant count to start the 4 clones vegging in a week or two.i just finished chopping 3 gsc and cleaning and reloading the flower box they were in.i also had to clean up and thin out the next flower box that just finished stretching.i am running the test with the cobs so i dont have to contort myself to fit in a 4x4 x6 foot high cabinet with 2 600 hps in the middle.i dont fit in there too well .if i use cobs on individual plants mounted to a screen mounted on a wall in a room it will be much easier accessing the plants.i want to see the weight difference on using more cobs.if the 6 is better efficiency then 4 or 5 i will do the next round with 6 ,7,8 per plant and so on till i reach optimal lighting.i like testing for myself and seeing what works the best.most everything you see about growing with leds is not like how we both grow vertically.
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I'd do four lights on the first, six on the second and eight on the third. You've got enough lights to do it, so why not?
 
zep_lover

zep_lover

Well-Known Member
ttystikk said:
I'd do four lights on the first, six on the second and eight on the third. You've got enough lights to do it, so why not?
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the only reason i would not try that is that it messes up my plant count.everything i do is in groups of 4 to keep my count compliant on plants.my set up is putting out 4 plants per month and doing 4 6 8 leaves 1 plant unused.the only time i do not use 4 is if something happens to a plant like my harvest i just finished with three gsc.i know by doing 4 5 6 it might take me 2 more crops till i find the sweet spot for efficiency.i have been using leds for veg for a long time and over the years have flowered with them but not with results i liked.the new cobs with their efficiency should do great but i am not committing everything i have in them till i see repeatable results.i changed my test from surrounding 1 plant with multiple lights due to the square footage i would need to commit the test and messing up my plant count.
 
ttystikk

ttystikk

Well-Known Member
The heat pump installation is an education. As is becoming usual for Surna products, the issue is the flow rate. A half horsepower pump isn't enough?! So we're going with a full one horsepower waterpump to ensure flow to the unit is on point.

Frankly, even a cursory examination of the water heated evaporator core shows that it's suspiciously small, as are the lines running to it. If the- unlisted in the specifications given- restriction it places on flow is great enough, no amount of pressure will overcome it.

If a one horsepower water pump pushing water through 1 1/4" ID spa line isn't sufficient, I'm going to be an unhappy camper.

Before you ask, here's the specs on the downstream manifold; same 1 1/4" inlet, or an inlet surface area of 1.227 in². Manifold has three exits, all 3/4", or .441 in², times three = 1.325 in², bigger than the inlet and thus should not present a big restriction. We shall see...
 
pop22

pop22

Well-Known Member
chilling a res effectively and cheaply is of great inerest to me. I built a DIY chiller from a 40 pint humidifier and it works well, but my grow room has become too crowed to use it so I've switched to organics. I'd love to do another DWC grow, but I don't have and effective colling solution for my res thats cost effective. any and all tips/suggestions are welcome!
I'll be going thru this whole thread today, VERY interesting!


tystikk said:
Hmmm. No one wants to know anything about water chilling, or growing three times as much product in a given space, yet still using less than half the power?
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