For the creation of this new printing line, the requirement was to maintain 26°C during the production period and 28°C the rest of the time.
Printing Industry – Graphic Production ProcessWest Indies- Guadeloupe
Customer
IMPRIMERIE FRANCE
The issue
The machine installed operates in cooling only mode. It has been specifically developed to operate in tropical climates with a higher flow/power ratio.
Our intervention
The programme is specific because the customer required management of different operating modes:
Production mode: Fresh Air operation at 19,000 m3/h + Return Air at 7,000m3/h
Reduced mode: Supply air flow in All Return Air+ regulation of the Fresh Air with a VOC sensor
The airflow rate is PID regulated according to the room temperature
The higher the room temperature, the higher the airflow rate
The more the room temperature reaches the set temperature, the more the airflow decreases.
The PLC adjusts the fresh air damper position to maintain air quality.
If the VOC measurement (in %) is higher than the setpoint, the PLC gradually opens the fresh air damper.
