Environmental performance assessment of intelligent cooling control benchmarks in Moroccan residential buildings
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1
Laboratory of Advanced Systems Engineering, National School of Applied Sciences of Kénitra, Ibn Tofail University, Kénitra 14000, Morocco
2
Laboratory of Engineering Science, Ibn Tofail University, Kenitra 14000, Morocco
Corresponding author
Tarik Elyemli
Laboratory of Advanced Systems Engineering, National School of Applied Sciences of Kénitra, Ibn Tofail University, Kénitra 14000, Morocco
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ABSTRACT
Benchmark reward rankings for intelligent cooling control do not necessarily represent thermal control or energy savings. This study introduces a closed-loop audit that separates available thermal authority from realised thermal effect in an occupancy-aware cooling benchmark for an 80 m² Moroccan apartment. A simplified model calibrated against EnergyPlus was evaluated using a Deep Q-Network (DQN) and deterministic setpoint rules. Across 209 hourly transitions with available authority, the DQN-derived mean setpoint rule and the deterministic rules produced no cooling activation, whereas seed-specific DQN action sequences showed limited activity for two of three seeds. Full-year EnergyPlus simulations compared four thermostat schedules in Kenitra and Marrakech. For EnergyPlus, the DQN was represented by an occupancy-conditioned mean setpoint schedule of 27/28 °C constructed from the three trained seeds; this rounded approximation is not an exact hourly replay of any trained policy. Relative to the fixed 26 °C schedule, the optimised 27/30 °C schedule reduced specific thermal cooling demand by 20.5% in Kenitra and 17.0% in Marrakech. The reward proxy ranked the 26/30 °C rule above the DQN-derived mean setpoint rule, whereas the corresponding DQN-derived schedule had lower simulated cooling demand in both climates. Benchmark reward, realised control and full-building simulated cooling demand should therefore be assessed separately.