LCO2 AS A MEANS TO CONTROL THE INNER ATMOSPHERE OF A GREENHOUSE IN TERMS OF ABSOLUTE MOISTURE AND TEMPERATURE
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United States of America Patent
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Issued Date -
Aug 1, 2024
app pub date -
May 6, 2022
filing date -
May 12, 2021
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Abstract
A method for managing operating conditions in a greenhouse, aiming to enable control:
- of the temperature prevailing inside the greenhouse;of the relative humidity of the atmosphere prevailing inside the greenhouse; characterized in that use is made of the latent heat of vaporization of liquid CO2 as means for cooling the atmosphere inside the greenhouse, and for making it possible to condense the residual humidity in this atmosphere by bringing it below a lower limit, as follows:one or more cryogenic liquid/air exchangers is disposed in the greenhouse;during all or some of the day, liquid CO2 is injected into the or some of the exchangers to exchange heat between the air inside the greenhouse and the cold walls of the one or more exchangers.
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