The Enerquin Air design approach takes into account the process needs such as the paper machine exhaust (wet-end area, dryer hood, pulper exhaust, etc.) and it assess the need for roof or wall exhausters to provide the desired room air change rate for summer and winter operation. Required building fresh make-up air is then determined to counterbalance the air exhausted while making an allowance for heat recovery to reduce heating costs.
Enerquin Air Machine Room Ventilation Concept
Proper distribution of make-up air between operating floor, mezzanine and basement promoting desirable air migration.
Air movements:
From dry end of the machine room to the wet end;
From lower elevation to upper elevation;
From tending side to backside of the paper machine.

At the wet end of the machine both the building ventilation and process requirements are considered; most of the mist is captured at the source while the false ceiling and roof exhausters confine the remaining vapours. The machine wet-end and the building are kept clean resulting in better machine performance, easier maintenance and good working environment.
Machine Room
Ventilation of the machine room plays a significant role in the sustainability aspect of the production and should address three fundamental objectives:
Ensure comfortable working conditions throughout the entire machine room.
Protect the building structure against corrosion by avoiding humid stagnant air
  pockets that leads to condensation and eventually costly repairs.
Provide free or low cost heating.
Enerquin Make-Up Air Systems are designed to efficiently bring and distribute fresh air in the building.
Fresh air is heated in winter with steam coils or gas burners or glycol coils which are normally part of a glycol heat recovery close loop system. Enerquin Air units are built for industrial applications with robust components (supply fan, heating coils or burners, filters, etc).
Water/Glycol Heating Systems
Used for hall heating and ventilation, Enerquin Air glycol systems eliminate steam coil freezing problems in colder climate, while permitting the transfer of wasted energy into fresh make-up air. These systems are ideal for remote heating and ventilating units, such as warehouses and shipping areas.
For most cold climate locations, Water Glycol Heat Recovery Systems are an effective method of recovering (low grade) heat from the paper machine hood system.
A water/glycol solution is heated through a heat exchanger installed in the hood exhaust stream, then pumped to the air make-up units heating coils and afterwards circulated back to the hood exhaust heat exchanger.
The water/glycol pumping unit normally includes a steam heat exchanger, which can re-heat the water/glycol mixture, when the paper machine is stopped or during extreme cold days.
This compact closed loop heat recovery approach is a solution for heating remote areas like the warehouse and shipping area and leads to considerable annual steam or gas savings.
Machine Room Ventilation Problems?
Poorly ventilated paper machine rooms have an adverse effect on the working environment.   more