Earth Cooling Tubes for Ventilation and Climate Control with Richard Freudenberger
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- Опубліковано 5 чер 2018
- Learn how you can take advantage of the soil’s moderating temperatures for cooling and passive climate control in buildings, workshops, and more. Living Web Farms’ Black Soldier Fly breeding facility uses the energy of the sun and the heat capacity stored in the earth’s subsoil to create a controlled inside climate with minimal or no energy input.
Richard Freudenberger, is our Energy and Resource Coordinator and will explain how the system works, what materials are used, and what factors you need to know before embarking on a project of your own. We’ll look at siting, costs, calculations, limitations, and what does and does not work with real world expectations wen installing your earth cooling tube ventilation system.
How can you use PVC piping in earth cooling tubes? That reduces the conduction of heat energy by more then 50%. The scary part of all this, is you are holding a seminar a out the topic. Teaching the wrong information. That project should have used corrugated metal piping, and never ever have two ends elevated to allow accumulation of condensation. You people should not be teaching!
Confused, why are the cooling inputs at the top of the container, rather than at the bottom edge, did I miss something? surely the incoming air will just be drawn towards the chimney, creating a flow pattern that will negate the overall cooling effect?
Have you considered using a duct valve? Once the interior air gets cooler than exterior air, you could engage the valve causing the air to flow in a "closed" loop fashion. As in, the air going into the underground ducts is pulled from the room and then returned to the room. This would mean the air would begin the loop at a cooler temperature rather than pulling the warmer air from outside.
The volume of that container needs a 4'' pipe that runs 136'. I know there is no official formula for these geothermal stuff, but I feel like you are not giving the air the time to exchange. You have bigger diameter with a short run. Some people successfully built a green house and maintained the temperature using earth tubing. Earth is great and thanks for sharing
Side note on the excavation. Typical Occupational Health & Safety guidelines for a working trench is maximum 150cm with spoil piles a min of 1m from edge of trench. This standard can be shallower pending your ground conditions. Any deeper and the risks of trench collapse becomes life threatening. If you are planning to trench, read up on excavation safety. Clearly there was no research done with regards to this.
This is a horrible rambling presentation on an important topic. No overall discussion of the goal or the plan or the results. Just carrying on about insignificant details and sidebar discussions. What's the goal? What's the purpose? Using geothermal heat to do what?
i could easily redesign this to be to be more easily serviceable and probably about 25 % more efficient. And far less cost in materials. Other than cost effectiveness and strength why are we using a metal building? You are defeating your own cause.
It’s probably not a huge amount of water accumulating from humidity, so couldn’t you have a perforated section at the low point of the pipe run that drains into a gravel bed to dissipate into the surrounding soil?
I have a spring pond fifty feet from my cabin, could I partially submerge a pipe and push air through it? I would insulate the length that is dry.
I didn't see any screen on the inlet tubes. I would put something to prevent insects from going in the tubes. I love the simplicity of the whole concept.
This really accentuates the beauty of the cooling culverts in the earth ship design.
I'm writing to a farmer channel called '10th generation dairyman'. I saw he was digging a ditch but it was only 5 feet deep or so. I figured if he's digging a ditch it's a good time to have dual use and that reduces the cost of trenching by half for each use.
Interesting experiment. Havnt seen much actual info on these cooling tubes in use and i like the idea to make it a passivly opperated system. Wondering if it was really worth the effort in this situation, might have been more cost effective to just pour some underground walls like a root cellar for your cooling, and use your hydro tubes in the floor for heat still and then a ventilation system which could still be passive/solar powered or whatever. Either way i like seeing more info on the subject. Im planning on setting up a cooling system for my house im currently building by using an underground cistern and pumping the water through the house to heat exchangers. Using water has some advantages over air, no issues with condensation in tubes or animals or mold, and the water can store up lots of thermal energy while not in use unlike air. It does have drawbacks too such as not being quiet as efficent due to the extra heat exchange required and of course the required pumps but the energy usage is still tiny. You guys must really like those flies :)
Excellent video, and very informative. A lot of good feedback in the comments too.
Please follow up and show us how the Soldier Fly facility works when it is up and running.. This is the first one I have ever seen.
Thank You.
Why not create a French drain under those pipes? Could you use perforations in the pipe?
I wonder about setting solar chimney more horizontally. One side a few feet higher. That way more heat would be transmitted yet maintaining air flow direction. If the chimney could be tilted test could be performed on what position worked best. My guess is 45 degrees. Two chimneys connected in center like a V would catch morning, noon and eve.
Can you post those lengths on temps at different depths in the description? thanks.
I was also wondering about condensation in cooling tubes. Thinking that the lines should have same slope as plumbing waste pipe and then join in underground access box like septic tank but open bottom filled with pea rock to absorb moisture. One good advantage of pipe size your running is you could clean out pipe dragging soaped mop head or similar on a rope. Avoiding mold.