Optimized operation of combined chilled ceiling displacement ventilation system using genetic algorithm.

This study is concerned with optimizing and comparing operational parameters for different control strategies of the combined chilled ceiling displacement ventilation (CC/DV) system subject to transient load using genetic algorithm while aiming to create the best indoor air quality and thermal comfort. The control strategies included: 1) varying chilled ceiling temperature (base strategy); 2) varying displacement ventilation supply conditions; and 3) varying both chilled ceiling temperature and supply air conditions (multiple control variables).