SIGNIFICANT PARAMETERS FOR CHARACTERIZATION OF THE VENTILATION AND COOLING OF GLASSHOUSES

The glasshouse can be described as a wet heatexchanger, into which energy is introduced as solar radiation.
Neglecting the amount of energy stored in the plants, soil, benches all energy must be taken away by a flow of a cooling medium or by passing through the boundary in form of conduction through the glass or convection through untightness.

The boundary conditions of this system are the solar radiation Q_Sa (W/m²), the ambient temperature t_a (°C) and the ambient absolute humidity x_a (g_H20/kg_air),

Optimalisation of Plant Growth under Protected Cultivation through Microclimate Control

B.v. Elsner

https://doi.org/10.17660/ActaHortic.1981.107.16