Center for the Built Environment

In this study the influence of temperature of the supplied air of a personalized ventilation system on energy need has been investigated by means of simulations with IDA-ICE software. GenOpt software was used to determine the optimal supply air temperature. The simulated office room was located in a cold climate. The results reveal that the temperature of air supplied by personalized ventilation and its control strategy have a marked influence on energy consumption. The energy consumption with personalized ventilation may increase substantially (in the range: 61-268%) compared to mixing ventilation alone if energy saving strategies are not applied. The results show that the best supply strategy is to provide air constantly at 20°C, the minimum allowed supply temperature. Energy savings (in the range: 32 - 47%) may be achieved with personalized ventilation in comparison with mixing ventilation when the room temperature is controlled between 18°C and 29°C.