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1
Content available Modelling and application of Stirling engine with renewable sources in electricity production
Ďurčanský P., Nosek R.
Structure and Environment
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2018
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Vol. 10, no. 4
386--389
EN
The rapid development of humanity and the backward technologies lead to an increasing need for energy. In the last few decades, studies have been published that rising energy consumption has a negative impact on the environment, resulting in an increasing trend in the use of renewable energy sources. Nowadays, there are a number of systems that use the energy of water, wind, sun, and earth heat, different solutions for increasing energy production are investigated in the world. One of the ways is utilization of renewable energy sources in cogeneration devices - combined production of electricity and heat in one device, with a high overall efficiency. The article deals with principle of hot-air engine, its basic calculation and use in combined production of heat and electricity from biomass.
PL
Szybki rozwój ludzkości i technologii prowadzi do wzrostu zapotrzebowania na energię. Na przestrzeni ostatnich kilku dekad opublikowano prace wskazujące, że wzrost konsumpcji energii ma negatywny wpływ na środowisko, co prowadzi do wzrostu zainteresowania odnawialnymi źródłami energii. Obecnie wiele układów wykorzystuje energię wody, wiatru, słońca i ziemi, a różne rozwiązania zwiększające produkcję energii są przedmiotem badań na świecie. Jednym ze sposobów wykorzystania odnawialnych źródeł energii są układy kogeneracyjne – skojarzona produkcja ciepła i energii elektrycznej w jednym urządzeniu o zwiększonej sprawności całkowitej. Artykuł przedstawia zasadę działania silnika na ciepłe powietrze, podstawowe zasady obliczeń i wykorzystanie w skojarzonej produkcji energii cieplnej i elektrycznej z biomasy.
2
Content available New ways of renewable sources utilization for electricity production
Durčanský P., Pilát P., Nosek R., Jandačka J.
Structure and Environment
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2015
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Vol. 7, no. 1
43--47
EN
Nowadays, different solutions for increasing energy production are investigated in the world. One of the ways is utilization of renewable energy sources in cogeneration devices - combined production of electricity and heat in one device, with a high overall efficiency. The article deals with principle of hot-air engine, its basic division and use in combined production of heat and electricity from biomass. The basic principle of engine is conversion of heat into mechanical energy, which is subsequently used for production of electricity. In the contribution is presented Stirling engine, which is driven by thermal energy from a concentrating solar collector and from biomass boiler.
3
The effect of gasifying boilers regulation to heat power and emissions parameters
Jandacka J., Malcho M., Nosek R., Papucik S.
Systems : journal of transdisciplinary systems science
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2010
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Vol. 14, No sp.
43--48
EN
The aim of this paper is to present how the regulation of boiler can affect the heat power and formation of emissions. The investigated boiler is designed for operation in domestic heating system. It has heat power equal to 25 kW. The comparison is done based on the experimental measurements.
4
Possibilities of using additives for wood pellet production
Nosek R., Jandacka J., Holubcik M.
Systems : journal of transdisciplinary systems science
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2010
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Vol. 14, No sp.
96--101
EN
In this work are described the possibilities for improving efficiency of wood pellets production. The introductory part is devoted to analyzing the properties of wood pellets, combustion and production of pollutants when combusted it. The production of wood pellets and used pelleting machines was analyzed. The main task of this work is to introduce efficiency pelleting lines and cost reduction of the wood pellets production as fuel with a focus on the effects of adding additives. The results of experimental measurements and properties of wood pellets with different additives are presented in the final part.
5
Numerical Modelling of Coal Combustion in Domestic Boiler
Nosek R., Jandacka J., Szlek A.
Archivum Combustionis
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2010
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Vol. 30 nr 3
167-175
EN
The aim of the work is to develop a method of simple characterization of solid fuels combustion in fixed bed, which would be useful for CFD modelling. In this work, the measurements were performed in a test rig, where a combustion front propagates against the airflow. Concentrations of flue gas species were registered at the exit of a fixed bed reactor and the temperature of burning coal was measured in selected points of the reactor as functions of time.
6
Effect of Fuel Supply to Heat Power and Formation of Emissions in Domestic Boiler
Nosek R., Chabadova J., Papucik S., Jandacka J.
Archivum Combustionis
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2010
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Vol. 30 nr 4
347-352
EN
The paper presents an analysis of the impact of fuel feed to power and emissions parameters of the automatic domestic boiler for combustion of wood pellets. For the analysis has been proposed an experimental methodology of boiler measuring. The investigated boiler is designed for operation in domestic heating system. It has heat power equal to 18 kW. Concentrations of flue gas species were registered at the exit the boiler and based on the measured parameters was carried out evaluation of the impact of the fuel feed to heat power and production of emissions.
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