Paper Conference

Proceedings of Building Simulation 2019: 16th Conference of IBPSA


Demand Controlled Ventilation for Electric Demand Side Flexibility

Anthony Vautrin 1,2, Sebastian Troitzsch 1, Srikkanth Ramachandran 1, Thomas Hamacher 3
1 TUMCREATE Limited, Singapore
2 MINES ParisTech, Paris, France
3 Technical University of Munich (TUM), Garching, Germany

Abstract: The intermittency of renewable electricity generation and the increasing peak demand due to electric mobility pose challenges to the electric grid operation. Demand side flexibility (DSF) is becoming an important technique to counter these challenges, where the air-conditioning demand of commercial buildings has a particularly high potential to serve as a flexible load. This paper proposes demand controlled ventilation (DCV) as a method to increase the DSF of air-conditioned commercial buildings. Two DCV strategies are proposed based on (1) occupancy-based ventilation according to ASHRAE Standard 62.1 and (2) an indoor air quality (IAQ) model. The increase/changes in DSF are quantified for both the strategies. For a test case comprising a zone of an office building in Singapore, both DCV strategies are shown to increase the DSF when compared to a conservative ventilation strategy. For instance, the IAQbased DCV strategy allows for scheduling strategic reserves six-fold higher than the conservative ventilation strategy.
Keywords: Demand Side Flexibility, Demand Controlled Ventilation, Indoor Air Quality, Flexibility Indicators
Pages: 1716 - 1723