Adaptive fan control

The paper presents the possibility of management fan performance in dependence on CO2 concentration. A mathematical calculation is made from prediction electric energy consumption for a variant control algorithm. most advantageous algorithm programmed into actual system, and its power shown graph. Finally, saving adaptive compared to classical over time. To program algorithm, mass balance equation used. depends input values, namely number sources, room volume supply air. Due infinitely variable control, it possible adjust setting depending expected development logarithmic rise concentration room. This with Visual Basic code can be used Arduino unit, which controls EC 0-10 V signal. Although significant savings short period time not expected, ventilation system where runs part year will substantial. Therefore, result presented by graphical diagrams different ways controlling per operation.