Ventilation process for one or more rooms or halls, involving noting temperatures and calculating pressures, creating air flow without fan where appropriate

摘要

The process involves noting the temperatures of the room (H2) and of the outside air (H1), and calculating the pressure created by natural forces as a result of the temperature difference found. This may be sufficient to create the air flow required without using a fan (Pp), in which case the fan can be switched off.