The general aim is to increase the energy efficiency of heating ventilation and air conditioning (HVAC) systems by achieving highly stable control performance allowing for operation close to the specification limits, where the highest profitability can be obtained. Considering the nonlinear behaviour of HVAC systems the use of advanced control techniques is a necessity in achieving this goal. One of the key questions arises here: are the economical benefits gained from the implementation of advanced control techniques higher than the installation costs? In this paper, the steady state characteristics between control set-points and HVAC system energy usage are estimated, in order to help to answer this question.
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- HVAC system
- energy consumption analysis
- system identification