Recent Submissions

  • Optimization principle of operating parameters of heat exchanger by using CFD simulation 

    Mičieta, Jozef; Vondál, Jiří; Jandačka, Jozef; Lenhard, Richard (EDP Sciences, 2016-03-26)
    Design of effective heat transfer devices and minimizing costs are desired sections in industry and they are important for both engineers and users due to the wide-scale use of heat exchangers. Traditional approach to ...
  • A Multi-Commodity Mathematical Modelling Approach—Hazardous Waste Treatment Infrastructure Planning in the Czech Republic 

    Šomplák, Radovan; Kropáč, Jiří; Pluskal, Jaroslav; Pavlas, Martin; Urbánek, Boris; Vítková, Petra (MDPI, 2022-03-17)
    This paper presents an analysis of infrastructure for the processing of Czech hazardous waste and pays attention to predictions of waste management development in the upcoming years. For this purpose, a unique complex ...
  • Effects of Oxygen-Enhanced Combustion Methods on Combustion Characteristics of Non-Premixed Swirling Flames 

    Skryja, Pavel; Hudák, Igor; Bojanovský, Jiří; Jegla, Zdeněk; Korček, Lubomír (MDPI, 2022-03-21)
    The objective of the present study was to experimentally investigate and compare the characteristics of three oxygen-enhanced combustion (OEC) methods; premix enrichment (PE), air-oxy/fuel combustion (AO), and additionally ...
  • Best response dynamics in waste-to-energy plants' price setting problem 

    Eryganov, Ivan; Šomplák, Radovan; Hrdina, Jaroslav; Nevrlý, Vlastimír (IOP Publishing, 2021-10-31)
    This paper deals with the task of waste energy recovery and effective price setting of waste-to-energy plants. Its main contribution is the invention of a new approach to pricing of waste disposal in a particular waste ...
  • Conceptual Design Method for Energy Retrofit of Waste Gas-to-Energy Units 

    Freisleben, Vít; Jegla, Zdeněk (SDEWES Centre, 2022-06-01)
    Many industrial waste gasses, especially from chemical and petrochemical processes, contain combustible substances enabling their utilization as a promising energy source. Thermal oxidation represents a suitable and proven ...
  • The Effect of Inert Fuel Compounds on Flame Characteristics 

    Hudák, Igor; Skryja, Pavel; Bojanovský, Jiří; Jegla, Zdeněk; Krňávek, Martin (MDPI, 2021-12-31)
    To describe the effects of inert compounds in gaseous fuel, experiments on three different process burners (staged fuel burner, staged air burner, and low-calorific burner) were carried out. The tested burners are commercially ...
  • Mathematical modeling of drying processes of selected fruits and vegetables 

    Reppich, Marcus; Jegla, Zdeněk; Grondinger, Jakob; Azouma, Yaovi Ouézou; Turek, Vojtěch (Wiley-VCH GmbH, 2021-10-12)
    This study investigates the behavior of fruit and vegetable samples during drying. The experimental data are fitted to several different thin-layer drying models. Regression analysis is used to determine model parameters, ...
  • Transient Thermal Stress Calculation of a Shell and Tube Condenser with Fixed Tubesheet 

    Pernica, Marek; Létal, Tomáš; Lošák, Pavel; Naď, Martin; Reppich, Marcus; Jegla, Zdeněk (Wiley-VCH, 2021-10-12)
    The present article deals with transient thermal stress calculation on a safety horizontal shell and tube condenser. This condenser is used in a power plant for cooling of hot steam diverted from the turbine in the case ...
  • Experimentally Verified Flow Distribution Model for a Composite Modelling System 

    Babička Fialová, Dominika; Jegla, Zdeněk (MDPI, 2021-03-23)
    A composite modelling system is currently being developed for accurate design of such complex heat transfer equipment. The modeling approach requires a flow distribution model enabling to yield accurate-enough predictions ...
  • New insights into the potential of the gas microturbine in microgrids and industrial applications 

    Konečná, Eva; Teng, Sin Yong; Máša, Vítězslav (Elsevier, 2020-11-27)
    This paper gives a comprehensive insight into gas microturbine (GMT) as a part of microgeneration systems. The gas microturbine is a highly effective source that can operate on various types of fuel, including a low-percentage ...
  • Transition Metal Dichalcogenides for the Application of Pollution Reduction: A Review 

    Zhang, Xixia; Teng, Sin Yong; Loy, Adrian Chun Minh; How, Bing Shen; Leong, Wei Dong; Tao, Xutang (MDPI, 2020-06-01)
    The material characteristics and properties of transition metal dichalcogenide (TMDCs) have gained research interest in various fields, such as electronics, catalytic, and energy storage. In particular, many researchers ...
  • Principal component analysis-aided statistical process optimisation (PASPO) for process improvement in industrial refineries 

    Teng, Sin Yong; How, Bing Shen; Leong, Wei Dong; Teoh, Jun Hau; Chee, Adrian Siang Cheah; Motavasel, Roxana Zahra; Hon Loong, Lam (Elsevier, 2019-07-10)
    Integrated refineries and industrial processing plant in the real-world always face management and design difficulties to keep the processing operation lean and green. These challenges highlight the essentiality to improving ...
  • Review of Design and Modeling of Regenerative Heat Exchangers 

    Kilkovský, Bohuslav (MDPI, 2020-02-09)
    Heat regenerators are simple devices for heat transfer, but their proper design is rather difficult. Their design is based on differential equations that need to be solved. This is one of the reasons why these devices are ...
  • Thermal load non-uniformity estimation for superheater tube bundle damage evaluation 

    Naď, Martin; Jegla, Zdeněk; Létal, Tomáš; Lošák, Pavel; Buzík, Jiří (EDP Sciences, 2018-03-14)
    Industrial boiler damage is a common phenomenon encountered in boiler operation normally which usually lasts several decades. Since boiler shutdown may be required because of localized failures, it is crucial to predict ...
  • Computation of temperature field by cell method and comparing with commercial software 

    Pernica, Marek; Létal, Tomáš; Lošák, Pavel; Naď, Martin (IOP Publishing, 2020-04-01)
    This paper deals with the temperature field of the shell and tube heat exchanger with segmental baffles. Two different types of shell and tube heat exchangers were analysed by a numerical model for thermal-hydraulic rating ...
  • Tightness of flange joints: A case study 

    Lošák, Pavel; Létal, Tomáš; Naď, Martin; Pernica, Marek (IOP Publishing, 2020-04-01)
    One of the negative technological factors that often have a significant impact on the environment is the leakage of operating media (so-called fugitive emissions), which most often occurs at different separable joints. ...
  • Simplified approach for creep evaluation in superheaters 

    Naď, Martin; Lošák, Pavel; Létal, Tomáš; Pernica, Marek (IOP Publishing, 2020-04-01)
    This paper is focused on the estimation of temperature distribution on superheater tube bundles for the consequent creep damage evaluation. The precision of estimated temperatures is very important because it significantly ...
  • Biowaste Treatment and Waste-to-Energy - Environmental Benefits 

    Pavlas, Martin; Dvořáček, Jan; Pitschke, Thorsten; Peche, René (MDPI, 2020-04-17)
    Biowaste represents a significant fraction of municipal solid waste (MSW). Its separate collection is considered as a useful measure to enhance waste management systems in both the developed and developing world. This paper ...
  • Practical energy retrofit of heat exchanger network not containing utility path 

    Jegla, Zdeněk; Freisleben, Vít (MDPI, 2020-05-28)
    The paper presents a method developed for the energy retrofit of specific Heat Exchanger Networks not containing Utility Paths. This useful and highly practically oriented method involves a systematic approach to obtaining ...
  • Indirect Convective Solar Drying Process of Pineapples as Part of Circular Economy Strategy 

    Azouma, Yaovi Ouézou; Drigalski, Lynn; Jegla, Zdeněk; Reppich, Marcus; Turek, Vojtěch; Weiß, Maximilian (MDPI AG, 2019-07-24)
    This study investigates the industrial-scale application of a simple convective solar drying process of pineapples as part of a circular economy strategy for developing countries. A renewable energy concept is presented, ...

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