AHU - Air Handling Units.
Here's the deal on what science and technology has come up with in general terms. Temp controlled and CO2 enriched air is forced through a "sock" about 6-8" dia that hangs from the trays just below the canopy. Quarter size holes blow temp controlled air (often injected w co2) to the leaves above. This creates a micro environment around the critical area of the plant. So both temp and co2 are maximized in otherwise difficult to manage areas. This allows co2 in constant exhausted or large spaces that would be otherwise impossible to keep co2 levels at optimal ranges. And the ambient temp of the greenhouse can be double digits from where it counts. So in winter or summer when the greenhouse may be at the extreme temps, the plant experiences a constant temp w/o the need to heat/cool the entire area. Conversely when you heat/cool the entire area to optimal temp, the critical areas w/in the plant mass may not be in the optimal temp zone. And on a side note in Holland they have two deep water wells with each storing the energy from the opposite season. Only energy required is the pump.
My first prototype shown here was designed to provide steady air flow to leaves, esp. w/in the dense canopy, and deliver co2, via Exhale bags, while running a constant exhaust fan. My AHU is also a scrubber as you will see.
When you implement, and should, your AHU, don’t be limited by my design. The Holland examples, check them out, are connected to heat/cooling devices and inject co2 via bottled. And while my I ran my "sock" down the wall, in open areas the "socks" are usually run down the aisles hanging off of the narrow trays that stretch for meters. These systems are quite often closed when co2 is injected. This is an ideal model for serious growers. I fully expect this to be a matter of course for many well designed rooms in the future.
Here's the deal on what science and technology has come up with in general terms. Temp controlled and CO2 enriched air is forced through a "sock" about 6-8" dia that hangs from the trays just below the canopy. Quarter size holes blow temp controlled air (often injected w co2) to the leaves above. This creates a micro environment around the critical area of the plant. So both temp and co2 are maximized in otherwise difficult to manage areas. This allows co2 in constant exhausted or large spaces that would be otherwise impossible to keep co2 levels at optimal ranges. And the ambient temp of the greenhouse can be double digits from where it counts. So in winter or summer when the greenhouse may be at the extreme temps, the plant experiences a constant temp w/o the need to heat/cool the entire area. Conversely when you heat/cool the entire area to optimal temp, the critical areas w/in the plant mass may not be in the optimal temp zone. And on a side note in Holland they have two deep water wells with each storing the energy from the opposite season. Only energy required is the pump.
My first prototype shown here was designed to provide steady air flow to leaves, esp. w/in the dense canopy, and deliver co2, via Exhale bags, while running a constant exhaust fan. My AHU is also a scrubber as you will see.
When you implement, and should, your AHU, don’t be limited by my design. The Holland examples, check them out, are connected to heat/cooling devices and inject co2 via bottled. And while my I ran my "sock" down the wall, in open areas the "socks" are usually run down the aisles hanging off of the narrow trays that stretch for meters. These systems are quite often closed when co2 is injected. This is an ideal model for serious growers. I fully expect this to be a matter of course for many well designed rooms in the future.
