Paper Conference

Proceedings of Building Simulation 2021: 17th Conference of IBPSA


Energy flexibility quantification with integrated heat pump, floor heating system, and thermal storage in a school building

Navid Morovat 1, José Agustín Candanedo 1,2, Andreas K Athienitis 1
1 Concordia University, Montreal, Canada
2 CanmetENERGY, Montreal, Canada

Abstract: This paper investigates promising predictive control strategies aimed to reducing peak demand and quantifying the energy flexibility potential of office zones in a school building. The office zones are equipped with integrated geothermal heat pump, floor heating system, forced air system, and concrete slab as a thermal energy storage. This paper consists of three parts: (1) development of models for the offices based on data-driven grey-box formulation and calibration with measured data; (2) employing the model to predict the concrete slab surface temperature, the indoor air temperature, and the heat delivered to the offices; (3) quantifying the energy flexibility through the estimation of the state of charge (SOC) of the concrete slab, and a Building Energy Flexibility Index (BEFI). Results show that with appropriate predictive control strategy the offices can use maximum SOC of the concrete slab and provide an energy flexibility of 25% during on-peak hours relative to a reference as-usual profile.
Keywords: School buildings, Floor heating system, Grey-box model, Energy Flexibility
Pages: 1633 - 1640