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Wednesday, July 05, 2023 Matt D. Connecticut

Entry 35 of 100  
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Hot Day

Despite having venting and a large fan running it can still get quite hot in the greenhouse style structure. When the sun is directly on the CO2 bottle, it can cause it to increase in pressure. A previous post shows the normal bottle pressure (~800psi), but here is the heat induced elevated pressure which reads 1750psi. When the sun goes down and the exhaust fan shuts off the controller and regulator will go back to normal dosing.

The flow rate is regulated so it will not impact this aspect and once the temperature cools down the pressure will also reduce. (Gay-Lussacís Law of Temperature and Pressure.)

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