A number of heating, ventilation and air-conditioning (HVAC) system vendors and operators have started to implement demand management systems in commercial buildings, yet we contend that the impact of such systems on building performance and occupant comfort is poorly understood. This paper examines such issues, showing the results from demand response experiments in two large office buildings....

Neural Network Based Optimal Control of HVAC&R Systems Min Ning, Ph.D Concordia University, 2008 Heating, Ventilation, Air-Conditioning and Refrigeration (HVAC&R) systems have wide applications in providing a desired indoor environment for different types of buildings. It is well acknowledged that 30% 40% of the total energy generated is consumed by buildings and HVAC&R systems alone account fo...

Heating, ventilating, and air-conditioning (HVAC) system design can be markedly improved through the application of numerical optimization procedures within the design process. This paper describes a procedure for the formulation and solution of HVAC system optimization problems that has been implemented in a library of computer programs. Consideration is given to the interaction between the si...

i Abstract The HVAC system configuration is a conceptual design of the HVAC system, including the employed components, the topology of the airflow network, and the control strategy with set points. Selection of HVAC system configuration is normally done in the early stage of the design process. The configuration design, however, has significant impacts on the performance of the final system. Th...

The use of machine-learning algorithms in optimizing the energy efficiency HVAC systems has been widely studied recent years. Previous research focused mainly on data-driven model predictive controls and reinforcement learning. Both approaches require a large amount online interactive data; therefore, they are not efficient stable enough for large-scale practical applications. In this paper, Ba...

In this paper, we report a novel technique for inexpensive high-speed internet access in buildings. Our work shows that, one can use heating, ventilation, and air conditioning (HVAC) ducts for indoor wireless transmission systems and networks. Measurements and system calculations show that coverage distances in excess of 100 meters from the base station and data rates of up to 100 Mbps should b...

Heating, Ventilating and Air Conditioning (HVAC) plant is a multivariable, nonlinear and non minimum phase system, which control of this plant, is very difficult. This paper presents a new approach to control of HVAC system. The proposed method is a hybrid of fuzzy logic and discrete PID controller. Simulation results show that this control strategy is very robust, flexible and alternative perf...