Jiří DostálCzech Technical University in Prague | ČVUT · University Centre for Energy Efficient Buildings
Master of Engineering
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Citations since 2017
6 Research Items
Jiří Dostál currently works at the University Centre for Energy Efficient Buildings, Czech Technical University in Prague. Jiří does research in Control Systems Engineering.
Skills and Expertise
We present a finite volume method formulated on a mixed Eulerian-Lagrangian mesh for highly advective 1D hyperbolic systems altogether with its application to plug-flow heat exchanger modeling/simulation. Advection of sharp moving fronts is an important problem in fluid dynamics, and even a simple transport equation cannot be solved precisely by ha...
The paper deals with an identification (calibration) of a building thermal model as a crucial part of modern control algorithms. It describes a modelling issue and parameter identification approach. There is presented an identification approach using a so called dual decomposition method which decomposes a large optimization problem into smaller lo...
This article is focused on hydronic heating systems that use pumps as the control actuators instead of valves. Those systems are called “demand-oriented”, while the systems being controlled by valves are called “supply-oriented”. Reader gets an overview of various versions of both demand- and supply-oriented systems using both one- and two-pipe top...
One-pipe hydronic heating systems in their active (decentralized pumping) form promise great benefits over traditional two-pipe variable volume systems, and even more so over variable air volume systems. The heat exchanger units are connected in series, which presents its challenges and opportunities. This paper presents a model predictive controll...
The article addresses the identification of thermodynamic models of buildings, serving the needs of control algorithms. It describes the issue of their modelling and approaches to identification of their parameters. It presents an approach to identification of a model with use of decomposition of the overall problem to partial, smaller, local sub-p...
Many heating, ventilation, and air conditioning systems are implemented using one heat source, the power of which is distributed to individual zones using a pipe network. Each zone can be independently controlled using its own zone controller. Due to the hydronic network interconnection, the zone controllers interact by pressure/flow changes. This...
A new concept of decentralized pumping in residential heating and cooling systems has been proposed in recent years and it is generally declared to save pumping energy. A set of tools has been derived in order to verify this proposition. A graph modeling method altogether with a network flow solver and pumping energy optimization solver are present...
This article presents modelling and control of a climatic chamber with on/off actuators. Controlled environmental variables in the chamber are temperature, relative humidity and illumination. The system is first decoupled by nonlinear transformation and a linear model is identified using subspace methods; further, a model predictive control strateg...