Neueste Zugänge

  • Adaptive fan control 

    Blasinski, Petr; Rubina, Aleš; Rubinová, Olga; Jůza, Štěpán (IOP Pulishing, 2021-07-28)
    The paper presents the possibility of management the fan performance in dependence on CO2 concentration. A mathematical calculation is made from the prediction of the electric energy consumption for a variant control ...
  • Photovoltaic Facade Performance Evaluation 

    Hirš, Jiří; Mohelníková, Jitka (IOP Publishing, 2021-12-02)
    A high-rise building façade with integrated photovoltaic panels, located in the Central European region with temperate climatic conditions was tested. The PV façade was monitored for three years. Results of the PV system ...
  • The Synergy of Living and Water Wall in Indoor Environment-Case Study in City of Brno, Czech Republic 

    Čákyová, Katarína; Vertal', Marián; Vystrčil, Jan; Nespěšný, Ondřej; Bečkovský, David; Rubina, Aleš; Pěnčík, Jan; Vranayová, Zuzana (MDPI, 2021-10-21)
    The indoor environment that surrounds us and the elements in it affect not only our mood but also the air quality. Vegetation elements are currently more popular, especially for their aesthetic value but also because of ...
  • Energy-Pile Model Verification 

    Šikula, Ondřej; Slávik, Richard; Eliáš, Jan; Oravec, Jakub; Kašpar, Antonín (KGH, 2020-12-31)
    Equipping the foundation piles with a liquid circuit pipeline makes it possible to use the advantageous thermal capacity of the soil for heating and cooling buildings at low cost. The energy performance of the energy-pile ...
  • Impact of IPPC Scenarios on indoor environment quality of historic buildings 

    Weyr, Jan; Hirš, Jiří; Kalný, Richard (EDP Sciences, 2019-08-13)
    Ensuring proper indoor environment quality in buildings with historic value or buildings located in historic centres of cities is not an easy task. These buildings are frequently listed in historic preservation lists; thus, ...
  • Energy, economic and environmental analysis of opened natural healing water source 

    Miček, Denis; Hirš, Jiří (EDP Sciences, 2019-08-13)
    European´s low carbon economy is the main target in the way of the reducing greenhouse gases at the Earth´s atmosphere. The most promising way is in maximal usage of renewable sources of energy such as geothermal energy, ...
  • Numeric Simulation of Heat Transfer Phenomena in Existing and Retrofitted Casement Windows 

    Khosravi, Shiva; Pont, Ulrich; Šikula, Ondřej; Mahdavi, Ardeshir (IBPSA, 2020-09-02)
    Transparent elements of building enclosure components play a critical role in buildings' performance and integrity. Numeric simulation provides a tool to model and predict the thermal behavior of window constructions. This ...
  • Numerical Simulation of the Effect of Heat Gains in the Heating Season 

    Šikula, Ondřej; Plášek, Josef; Hirš, Jiří (Elsevier, 2012-03-08)
    This paper is concerned with the description and verification of an energy model of a building using the BSim software. The aim is to determine the effect of the basic heat gains on the energy consumption of a building. ...
  • Thermal Analysis of Light Pipes for Insulated Flat Roofs 

    Šikula, Ondřej; Mohelníková, Jitka; Plášek, Josef (Elsevier B.V., 2014-10-22)
    Light pipes transmit daylight into building interiors. Their installation into thermally insulated roofs of low energy buildings can be a problem because of thermal bridges and condensation problems. This article is focused ...
  • Experimental and numerical study of turbulent flow around a Fanwings profile 

    BENFERHAT, Slimane; Tayeb, Yahiaoui; IMINE, Bachir; Ladjedel, Omar; Šikula, Ondřej (Taylor & Francis Group, 2019-07-20)
    The main objective of this paper is an experimental and numerical study of airflow on a propulsive wing also called ventilated wing or FANWING, which is a drone operating at low speed. To optimize the aerodynamic shape of ...
  • Thermal CFD Analysis of Tubular Light Guides 

    Šikula, Ondřej; Mohelníková, Jitka; Plášek, Josef (MDPI, 2013-12-03)
    Tubular light guides are applicable for daylighting of windowless areas in buildings. Despite their many positive indoor climate aspects they can also present some problems with heat losses and condensation. A computer CFD ...
  • An Evaluation of the Mathematical Models of Energy Piles 

    Oravec, Jakub; Šikula, Ondřej; Nováková, Iva (Sciendo, 2020-04-03)
    A current trend is to reduce the energy performance of buildings by using alternative sources for heating and cooling. One of the most promising, and so far unprecedented sources of heating and cooling, is the use of energy ...
  • Experimental Increase in the Efficiency of a Cooling Circuit Using a Desuperheater 

    Formánek, Marian; Horák, Petr; Diblík, Josef; Hirš, Jiří (Budapest University of Technology and Economics, 2016-05-02)
    Waste heat from cooling circuits can be a useful source of energy for other applications, such as domestic hot water heaters. Furthermore, by removing waste heat from the cooling circuit, its effectiveness can theoretically ...
  • Experimental Analysis of Steam Condensation in Vertical Tube with Small Diameter 

    Kubín, Milan; Hirš, Jiří; Plášek, Josef (Elsevier, 2016-01-12)
    Thermal design of tubular heat exchanger based on condensation heat of water steam requires knowledge of condensation heat transfer in the each tube. This paper is just aimed on experimental analysis of steam condensation ...
  • The possibilities of application of radiant wall cooling in existing buildings as a part of their retrofit 

    Krajčík, Michal; Šikula, Ondřej (EDP Sciences, 2019-08-13)
    In the following years and decades the increase in cooling capacity will put tremendous pressure on the energy infrastructure and severely increase the environmental impacts. In a moderate climate and well thermally insulated ...
  • Radiant wall cooling with pipes arranged in insulation panels attached to facades of existing buildings 

    Šimko, Martin; Krajčík, Michal; Šikula, Ondřej (EDP Sciences, 2019-08-13)
    Radiant systems are being increasingly used for space heating and cooling of buildings. The contemporary research of radiant systems addresses mainly floor and ceiling structures. Research regarding the possibilities of ...
  • Implications of Model Complexity for the Simulated Thermal Behavior of a Casement Window 

    Khosravi, Shiva; Šikula, Ondřej; Pont, Ulrich; Mahdavi, Ardeshir (IOP Publishing, 2019-06-27)
    Windows have been a subject of interest for research in building industry due to their multifaceted and significant implications for indoor environmental quality and energy use. In this context, the present contribution ...
  • Circular Free Jets: CFD Simulations with Various Turbulence Models and Their Comparison with Theoretical Solutions 

    Kmecová, Miroslava; Šikula, Ondřej; Krajčík, Michal (IOP Publishing Ltd, 2019-02-25)
    The theory of turbulent free jet is fundamental for the design of comfort ventilation, as free jets frequently occur in mixing and personalized ventilation systems and their characteristics strongly influence the air quality ...
  • Theoretical evaluation of night sky cooling in the Czech Republic 

    Šíma, Jiří; Šikula, Ondřej; Košútová, Katarína; Plášek, Josef (Elsevier, 2014-01-22)
    Energy necessary for cooling of building in summer season makes a big part of energy required for building operation. Redundant heat removal in summer can be realized in various ways. One of possible methods, mainly in ...
  • The Effect of Shielding Barriers on Solar Air Collector Gains 

    Šikula, Ondřej; Plášek, Josef; Hirš, Jiří (Elsevier, 2013-08-22)
    The paper deals with numerical simulations of the impact of location and orientation of the solar air collector located on the roof of a building and on its thermal performance. The solar collector is used to preheat an ...

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