Conference Paper

Proceedings of Building Simulation 2019: 16th Conference of IBPSA

     

Performance Analysis and Control Strategies to Enhance Free Cooling with an Active PCM-Heat Exchanger

Navid Morovat 1, Jose Agustín Candanedo 2, Andreas K Athienitis 1
1 Concordia university, Canada
2 CanmetENERGY, Canada

DOI: https://doi.org/10.26868/25222708.2019.210464
Abstract: This paper presents a simulation case study of an active thermal energy storage device with phase-change materials (PCM) for free-cooling purposes. The charging/discharging of the PCM, arranged in layers in a heat exchanger, is done through a controlled air stream passing through these layers. First, the effect of airflow rate on charging/discharging time is investigated. Then, different control strategies targeting reduction in peak demand and HVAC system sizing are evaluated. Results show that for the present case-study 14% reduction in energy consumption and 10% enhanced energy flexibility could be achieved using the PCM heat exchanger (PCM-HX) for free cooling.
Keywords: Active PCM heat exchanger, Energy storage, Peak load shifting, Performance Optimization
Pages: 1676 - 1683
Paper:

BS2019_210464