Lukás Ferkl

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Predictive control in buildings has undergone an intensive research in the past years. Model identification plays a central role in a predictive control approach. This paper presents a comprehensive study of modeling of a large multi-zone office building. Many of the common methods used for modeling of the buildings, such as a detailed modeling of the(More)
The circulation system of the heating water can be used for distribution of heat throughout a building even without an active heat supply - the water may absorb the heat in the rooms exposed to the solar heat and deliver it to the rooms in shade. In Central Europe, this is particularly useful when the outdoor temperatures are close to the required inside(More)
Low energy buildings have been attracting much attention lately. Most of the research is focused on the building construction or alternative energy sources. Recently, there has been an intense research in the area of Model Predictive Control (MPC) for buildings. The main principle of such a controller is a trade-off between energy savings and user welfare(More)
Finding a suitable dynamic, linear, time-invariant model is a major obstacle for the use of model-predictive control of buildings. While finding models based on physical properties of the system is time consuming, statistical models need the system to be excited, which is not always possible. This paper presents possibilities for finding a suitable model(More)
There are many large highway tunnels constructed all around the world. The operation of such tunnels has to meet several requirements, e.g. energy consumption optimization, minimal influence on the surrounding environment, lifetime conservation , minimal maintenance costs, portal protection from exhaust, etc. As the tunnel system is typically very complex(More)
In order to provide decision-making mechanism for application of model-based control of heating systems in buildings, a method has been proposed that assumes the energy balance calculation as the performance bound for the model-based controller. If the performance bound is significantly lower than the actual energy consumption, a more accurate estimate is(More)
A detailed simulation has been proposed and implemented for a complex road tunnel to be constructed in Prague, Czech Republic. The work brings new approach to functional and spatial decomposition of traffic, ventilation and exhaust tunnel subsystems allowing a simulation of dynamics. The discretization method provides a highly realistic and detailed(More)
Even though modern control has emerged in numerous control applications, a building automation is still a field where the position of the classical control is almost exclusive. The main reason is that for the synthesis of a predictive controller a decent model for control is needed. In the field of building climate control, it is still problem to obtain a(More)