Abstract
Most existing building simulation programs fail to capture sufficient of the underlying dynamics of nonlinear HVAC plant and some have restricted room space modelling capabilities for low-time-horizon analyses. In this work, a simplified model of a room space with hot water heating and a chilled ceiling system is developed for the main purpose of analysing control system response. The room model is based on a new approach to lumped capacitance modelling and the heating and chilled ceiling emitters are modelled using third-order descriptions. Control system components are treated in detail and both controllers are ‘tuned’ at a nominal region of plant operation using a gradient-descent-based optimization procedure. Robustness qualities of the controllers are analysed with reference to extremes in plant operating conditions. A key feature of the work is the transparency of the modelling procedure, designed to have appeal to researchers as well as practitioners involved with HVAC control system design problems.
| Original language | English |
|---|---|
| Pages (from-to) | 271-280 |
| Journal | Building Services Engineering Research and Technology |
| Volume | 24 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2002 |
| Event | Proceedings of SSB 2002, the 6th International Conference on System Simulation in Buildings - University of Liege, Belgium Duration: 1 Jan 2002 → … |