A production facility was analyzed and a study to safe energy done. The ventilation of the facility was later upgraded with heat recovery units.
Installed heat recovery unit:
- Printing press – waste heat ~ 40°C
- Workshop I : air flow max: 20.000m³ with TI of 18°C
- Workshop II: air flow max: 11.000m³ with TI of 18°C
- Efficiency dry: 75%
- Efficiency wet: 80%
- Heat recovery class: H1
The energy of the exhaust air is used to heat up the cold supply air.
Supply air is provided via a special regulated air distribution system.
The existing auxiliary heater is only be used by low temperatures - below – 10°C or in cases of a production down time and missing process heat.
The workshop is equipped with temperature sensors and automatically regulated.
Die Hallen sind Innentemperatur überwacht und können für den Automatikbetrieb frei programmiert werden.
In the transitional periods and in the summer months, the ventilation systems should be able to be controlled manually so that only fresh, unheated outside air is introduced.
At full power of the printing machines, the total heat recovery is 250 KW,
so that on average the standard building heating load of ~ 175 KW is still covered with a 30% lower waste heat.
