doc. Ing. Marek Baláš, Ph.D.
E-mail:   Marek.Balas@vutbr.cz 
Dept.:   Energy Institute
Dept. of Power Engineering
Position:   Deputy Head
Room:   A1/1422
Dept.:   Energy Institute
Dept. of Power Engineering
Position:   Associate Professor
Room:   A1/1422

Sum of citations (without self-citations) indexed within SCOPUS

270

Sum of citations (without self-citations) indexed within ISI Web of Knowledge

180

Supervised courses:

Publications:

  • BALÁŠ, M.; LISÝ, M.; KRACÍK, P.; POSPÍŠIL, J.:
    Municipal solid waste gasification within waste-to energy processing, MM Science Journal
    journal article in Scopus
  • KRACÍK, P.; LISÝ, M.; BALÁŠ, M.; POSPÍŠIL, J.:
    The Size Effect of Heat-Transfer Surfaces on Boiling, Inštitut za kovinske materiale in technologije Ljubljana
    journal article in Web of Science
  • KRACÍK, P.; ŠNAJDÁREK, L.; LISÝ, M.; BALÁŠ, M.; POSPÍŠIL, J.:
    Correlation of Heat Transfer Coefficient at Sprinkled Tube Bundle, Inštitut za kovinske materiale in technologije Ljubljana
    journal article in Web of Science
  • KRACÍK, P.; BALÁŠ, M.; LISÝ, M.; POSPÍŠIL, J.:
    Effect of size sprinkled heat exchange surface on developing boiling, SAGE Publications Ltd,
    journal article in Web of Science
  • BALÁŠ, M.; LISÝ, M.; POSPÍŠIL, J.:
    Steam Biomass Gasification - Effect of Temperature,
    Applied Mechanics and Materials, pp.49-54, ISSN 1662-7482
    journal article - other
  • LISÝ, M.; BALÁŠ, M.; ŠPILÁČEK, M.; SKÁLA, Z.:
    OPERATING SPECIFICATIONS OF CATALYTIC CLEANING OF GAS FROM BIOMASS GASIFICATION, Czech Technical University in Prague,
    journal article in Web of Science
  • LISÝ, M.; BALÁŠ, M.; ŠPILÁČEK, M.:
    Gasification of Selected Wastes in Fluidized Bed Reactor,
    Waste forum, Vol.2015, (2015), No.3, pp.147-155, ISSN 1804-0195
    journal article - other
  • KRACÍK, P.; ŠPILÁČEK, M.; BALÁŠ, M.; POSPÍŠIL, J.:
    Boiling On Sprinkled Tube Bundle,
    Proceedings of the 2nd International Conference on POWER and ENERGY SYSTEMS (POES '15), pp.23-29, ISBN 978-1-61804-329-0, (2015), WSEAS Press
    conference paper
    akce: 2nd International Conference on POWER and ENERGY SYSTEMS, Malta, 17.08.2015-19.08.2015
  • LISÝ, M.; BALÁŠ, M.; ŠPILÁČEK, M.; SKÁLA, Z.:
    Comparison of Atmospheric Fluid Bed Gasification of Woody and Non-woody Biomass Fuels,
    Mathematical and Computitational Methods in Electrical Engineering, pp.44-49, ISBN 978-1-61804-329-0, (2015), WSEAS Press
    conference paper
    akce: 2nd International Conference on POWER and ENERGY SYSTEMS, Malta, 17.08.2015-19.08.2015
  • BALÁŠ, M.; LISÝ, M.; KUBÍČEK, J.; POSPÍŠIL, J.:
    Syngas Cleaning by Wet Scrubber, WSEAS
    journal article in Scopus
  • BALÁŠ, M.; LISÝ, M.; SKÁLA, Z.:
    Spalovny odpadu – odpad jako palivo,
    TZB-info, Vol.2014, (2014), No.43, pp.1-8, ISSN 1801-4399
    journal article - other
  • BALÁŠ, M.; LISÝ, M.; KUBÍČEK, J.:
    Mokrá vypírka pro čištění energoplynu,
    Sborník přednášek z konference Energie z biomasy XV, pp.9-18, ISBN 978-80-214-5016-5, (2014), VUT v Brně
    conference paper
    akce: Energie z biomasy XV, Lednice , 09.09.2014-11.09.2014
  • ŠPILÁČEK, M.; LISÝ, M.; SKÁLA, Z.; BALÁŠ, M.:
    The Comparsion of Wood Chips and Cocoa Shells Combustion,
    Advances in Enviromental Sciences, Development and Chemistry, pp.217-220, ISBN 978-1-61804-239-2, (2014)
    conference paper
    akce: International Conference on Energy, Enviroment, Development and Economics (EEDS'14), Santorini Island, 17.07.2014-21.07.2014
  • BALÁŠ, M.; LISÝ, M.; SKÁLA, Z.; POSPÍŠIL, J.:
    Wet scrubber for cleaning of syngas from biomass gasification,
    Advances in Enviromental Sciences, Development and Chemistry, pp.195-201, ISBN 978-1-61804-239-2, (2014)
    conference paper
    akce: International Conference on Energy, Enviroment, Development and Economics (EEDS'14), Santorini Island, 17.07.2014-21.07.2014
  • LISÝ, M.; BALÁŠ, M.; ŠPILÁČEK, M.; SKÁLA, Z.:
    Technical and economic optimization of cogeneration technology using combustion and gasification, Czech Technical University in Prague
    journal article in Scopus
  • MOSKALÍK, J.; ŠTELCL, O.; BALÁŠ, M.; LISÝ, M.; FIEDLER, J.:
    METHODS FOR CLEANING OF GAS FROM GASIFICATION OF STALK,
    The Holistic Approach to Environment, Vol.4, (2013), No.4, pp.1-6, ISSN 1848-0071
    journal article - other
  • BALÁŠ, M.; LISÝ, M.; MOSKALÍK, J.:
    Kotle,
    TZB-info, Vol.1, (2012), No.12, pp.1-6, ISSN 1801-4399, Topinfo s.r.o.
    journal article - other
  • BALÁŠ, M.:
    Kotle a výměníky tepla,
    Kotle a výměníky tepla, ISBN 978-80-214-3955-9, (2009), Akademické nakladatelství CERM s.r.o. Brno
    course reader
  • BALÁŠ, M.; LISÝ, M.; SKÁLA, Z.:
    Gas Detarring Following Biomass Gasification,
    3rd International Freiberg Conference on IGCC and XtL Technologies - papers, pp.1-12, ISBN 978-92-9029-467-2, (2009), IEA Clean Coal Centre
    conference paper
    akce: 3rd International Freiberg Conference on IGCC and XtL Technologies, Dresden, 18.05.2009-21.05.2009
  • BALÁŠ, M.; LISÝ, M.; MOSKALÍK, J.:
    Gas from Biomass Gasification in Cogeneration,
    New Aspects of Heat Transfer, Thermal Engineering and Environment, pp.126-131, ISBN 978-960-6766-97-8, (2008), WSEAS Press
    conference paper
    akce: The 6th IASME/WSEAS International Conference on Heat Transfer, Thermal Engineering and Environment, Rhodes, Greece, 20.08.2008-22.08.2008
  • LISÝ, M.; KOHOUT, P.; BALÁŠ, M.; SKÁLA, Z.:
    Fluidní zplyňování vybraných druhů biomasy,
    Kotle a energetická zařízení 2006, pp.--5, ISSN 1801-1306
    journal article - other
    akce: Kotle a energetická zařízení 2009, BRno, 13.03.2006-15.03.2006

List of publications at Portal BUT

Abstracts of most important papers:

  • BALÁŠ, M.; LISÝ, M.; KRACÍK, P.; POSPÍŠIL, J.:
    Municipal solid waste gasification within waste-to energy processing, MM Science Journal
    journal article in Scopus
    This paper discusses theoretical assets and liabilities of a use of advanced thermal technologies within waste-to-energy (WTE) processing. Gasification and pyrolysis are compared to conventional incineration. Major part of the paper deals with results of gasification experiments: various wastes were gasified within a fluid generator with a circulating fluidized bed. The results were later compared. Lower heating value, composition of the syngas and amount of tar within the syngas were the important observed factors. Experiments were performed at a Biofluid, the pilot facility at the Faculty of Mechanical Engineering in Brno.
  • KRACÍK, P.; LISÝ, M.; BALÁŠ, M.; POSPÍŠIL, J.:
    The Size Effect of Heat-Transfer Surfaces on Boiling, Inštitut za kovinske materiale in technologije Ljubljana
    journal article in Web of Science
    A sprinkled tube bundle is frequently used in technology processes where an increase or decrease of a liquid temperature in a very low-pressure environment is required. Phase transitions of the liquid very often occur at low temperatures at pressures ranging in the thousands of pascals, which enhances the heat transfer. This paper focuses on the issue of a heat-transfer coefficient that is experimentally examined at the surface of a tube bundle. The tube is located in a low-pressure chamber where the vacuum is generated using an exhauster via an ejector. The tube consists of smooth copper tubes of 12 mm diameter placed horizontally one above another. Heating water flows in the bundle from the bottom towards the top at an average input temperature of approximately 40 °C and an average flow rate of approximately 7.2 L/min. A falling film liquid at an initial temperature of approximately 15 °C at an initial tested pressure of approximately 97 kPa (atmospheric pressure) is sprinkled onto the tubes’ surface. Afterwards, the pressure in the chamber is gradually decreased. When reaching the minimum pressure of approximately 3 kPa (abs) the water partially evaporates at the lower part of the bundle. Consequently, the influence of the falling film liquid temperature increase is tested. This gradually leads to the boiling of water in a significant part of the bundle and the residual cooling liquid that drops back to the bottom of the vessel is almost not heated anymore. In this paper we present the influences of the size of the heat-transfer surfaces.
  • KRACÍK, P.; ŠNAJDÁREK, L.; LISÝ, M.; BALÁŠ, M.; POSPÍŠIL, J.:
    Correlation of Heat Transfer Coefficient at Sprinkled Tube Bundle, Inštitut za kovinske materiale in technologije Ljubljana
    journal article in Web of Science
    The paper presents a research on the heat-transfer coefficient at the surface of a sprinkled tube bundle, using a boiling simulation. A tube bundle consists of thirteen copper tubes divided into two rows and it is located in a low-pressure chamber where vacuum is generated by an exhauster via an ejector. The liquid tested was water at the absolute pressure in the chamber of 96.8–12.3 kPa and at a thermal gradient of 55–30 °C between the cooled liquid flowing upwards inside the exchanger and the heated falling film liquid. The flow of the falling film liquid ranged from 0–17 L/min. Two types of tubes were tested, a smooth one and a sandblasted one. The correlation of the average heat-transfer coefficient at the surfaces of both tube types was identified.
  • KRACÍK, P.; BALÁŠ, M.; LISÝ, M.; POSPÍŠIL, J.:
    Effect of size sprinkled heat exchange surface on developing boiling, SAGE Publications Ltd,
    journal article in Web of Science
    This article presents research of sprinkled heat exchangers. This type of research has become rather topical in relation to sea water desalination. This process uses sprinkling of exchangers which rapidly separates vapour phase from a liquid phase. Applications help better utilize low-potential heat which is commonly wasted in utility systems. Low-potential heat may increase utilization of primary materials. Our ambition is to analyse and describe the whole sprinkled exchanger. Two heat exchangers were tested with a similar tube pitch: heat exchanger no. 1 had a four-tube bundle and heat exchanger no. 2 had eight-tube bundle. Efforts were made to maintain similar physical characteristics. They were tested at two flow rates (ca 0.07 and 0.11 kg s-1 m-1) and progress of boiling on the bundle was observed. Initial pressure was ca 10 kPa (abs) at which no liquid was boiling at any part of the exchanger; the pressure was then lowered. Other input parameters were roughly similar for both flow rates. Temperature of heating water was ca 50°C at a constant flow rate of ca 7.2 L min-1. Results of our experiments provide optimum parameters for the given conditions for both tube bundles.
  • BALÁŠ, M.; LISÝ, M.; POSPÍŠIL, J.:
    Steam Biomass Gasification - Effect of Temperature,
    Applied Mechanics and Materials, pp.49-54, ISSN 1662-7482
    journal article - other
    Gasification is one of the technologies for utilization of biomass. Gasification is a transformation process that converts solid fuels into gaseous fuels. The gaseous fuel may be subsequently applied in other technologies with all the benefits that gaseous fuels provide. The principle of biomass gasification is a common knowledge. It is thermochemical decomposition of the fuel in presence of gasification agent. Heat from the endothermic reaction is obtained by a partial combustion of the fuel (autothermal gasification) or the heat is supplied into a gasifier from the outside (allothermal gasification). Oxygen for the partial combustion is supplied in the gasification medium. Quality, composition and amount of the producer gas depend on many factors which include type of the gasifier, operating temperature and pressure, fuel properties (moisture content) and type and amount of gasification medium. Commonly, air, steam and oxygen and their combinations are used as a gasification medium. Every kind of gasification agents has its significant advantages and disadvantages. Research and analysis of the gasification process must pay special attention to all operating parameters which affect quality and amount of the producer gas that is the efficiency of the conversion itself. Composition of the producer gas, calorific value, and content and composition of impurities are especially observed as these are the basic characteristics directly affecting subsequent application of the gas. Steam addition has a significant impact on gas composition. Steam decomposition into hydrogen and oxygen, and their subsequent reactions increases amount of combustibles, hydrogen, methane and other hydrocarbons. Steam addition in the gasification also affects amount and composition of tar and has a negative impact on heat balance. Energy Institute at the Brno University of Technology has a long tradition in research of biomass gasification in atmospheric fluidized bed reactors. Air was used as a gasification medium. This paper describes our experience with gasification using a mixture of air and steam. We analysed the whole process and in this paper we wish to describe the impact of temperature on outputs of the process, especially temperature of leaving steam and temperature of gasification reactions.