IoT-Based Multi-Speed HVAC Control: Simulation Results and Testbed Development

Hekimoglu M. B., Alioğlu A., Buyuker A. I., Ulusoy I.

33rd IEEE Conference on Signal Processing and Communications Applications, SIU 2025, İstanbul, Turkey, 25 - 28 June 2025, (Full Text) identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/siu66497.2025.11111868
  • City: İstanbul
  • Country: Turkey
  • Keywords: Comfort and Energy Efficiency, EnergyPlus, HVAC, IoT, Rule-Based Controller
  • Middle East Technical University Affiliated: Yes

Abstract

This paper presents a multi-speed rule-based controller for HVAC and ventilation management, evaluated in simulation and prepared for real-world deployment. The controller uses real-time environmental data and predefined thresholds to dynamically adjust fan speeds, balancing air quality and thermal comfort. Compared to conventional rule-based methods, it achieves more stable indoor conditions and improved occupant comfort, while maintaining comparable energy performance. The algorithm is validated in an EnergyPlus simulation of a 100 m2 space. Results show that the approach offers a reliable, low-overhead solution for efficient climate control, and is well-suited for integration into future smart building applications.