Ventilation is watching you

Automatic sensors that turn off lights when someone leaves the room, have become the norm. The engineers at Fläkt Woods took this a reasonable principle, for example when creating a ventilation system that responds to the presence of people. If the room is unoccupied, ventilation is at a minimum and when there are people out there, the treated air is being supplied in the required amount.

This system significantly reduces energy consumption and increases the efficiency of building engineering systems.

This solution became available thanks to the new active cooling beams WEGA II, NOVA II LYRA II and was developed by company Fläkt Woods. They save energy when rooms are empty, and effectively use air and water for HVAC in the presence of people, providing a high level of comfort.

Active beam WEGA II, NOVA II, and the LYRA II have several advantages.

Modified geometry of the nozzle allows you to smoothly adjust the air flow throughout the range from zero to maximum. Mounted on the beam controller drive automatically maintains a preset flow or regulate it according to the sensors (presence, CO2, temperature) or by signals from the BMS-the building.

 

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In addition, the beam imobilecinema, i.e. do not require a lengthy process of commissioning.

The change in consumption in the same room does not affect the operation of the beam in another, and rotating slats that are installed on the beams that allow you to change the air flow direction. This gives the system even greater flexibility.

The system is universal: it is compatible with the ducts of constant cross section, and with the traditional "matryoshka". Therefore, it can be applied to newly constructed buildings and renewal projects.

 

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Model management beams for the office or the negotiation looks like this: when in a room with no people, the air over the beam or not served, or served the required minimum flow rate – installation in controller V0. Heat gain in the room removed with water, usually 2-way on/off valve. If water flow is not enough and the indoor temperature begins to rise, the nozzle is opened, and after the beam begins to enter the air.

The appearance of people in the room at a signal from presence sensor, CO2 or BMS, the beams go into normal mode (on the controller Vmin), or feeding the specified amount of air, or maintaining CO2 levels at a predetermined value in the range of costs from Vmin to Vmax. Vmax determines the maximum air flow when completely filled the room and with maximum thermal loads.

 

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Thus, in terms of the provisions of V0, Vmin and Vmax, you can quickly and easily configure the same beam to work in different rooms with different requirements and loads.

This flexibility becomes very much in demand not only during operation, but also when you change the configuration of the office.

In the selection program Exselair you can quickly and easily simulate the room to see the distribution of air movement in the work area and other required parameters.

The program works on-line and open to the public. published 

P. S. And remember, only by changing their consumption — together we change the world! © Join us at Facebook , Vkontakte, Odnoklassniki

Source: green-city.su/ventilyaciya-sledit-za-toboj/

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