Paper Conference

Proceedings of Building Simulation 2017: 15th Conference of IBPSA


Whole-Building Simulation of Hybrid Ventilation based on Full-scale Measurements in an Institutional High-rise Building for Predictive Control

Jun Cheng, Dahai Qi, Liangzhu Leon Wang, Andreas Athienitis
Centre for Zero Energy Building Studies, Department of Building, Civil and Environmental Engineering, Concordia University, 1455 de Maisonneuve Blvd. West, Montreal, Quebec, H3G 1M8, Canada

Abstract: Hybrid ventilation is an effective approach to reduce cooling energy consumption by combining natural and mechanical ventilation. Full-size and whole-building measurements of high-rise hybrid ventilation are quite limited in the literature due to the challenges associated with the complexities of the building and variable ambient conditions. Because of limited measurement data, validated and accurate whole-building simulations of hybrid ventilation cannot often be found in the literature. This paper reports a series of full-scale measurements of hybrid ventilation in a 17-story institutional building and associated whole-building simulations using both a 15zone detailed and a 5-zone simplified multizone models. The paper is one of the first studies with real-world and full-scale test data of high-rise hybrid ventilation, which shares key operational and performance experience and case studies of hybrid ventilation with other researchers. Both the test data and the validated simulation models can be used for the comparison and validation of simulation models. It is also shown that the 5-zone simplified model developed from this study is able to model such a complex high-rise building by only a few zones, making possible the on-line model predictive control of a high-rise building. This was illustrated here by an example of optimizing the uniformity of the hybrid ventilation on different floors by modifying inlet areas.
Pages: 1391 - 1396