This page has only limited features, please log in for full access.
My research interests include: (i) technologies based on the use of renewable energy sources, (ii) micro-cogeneration systems powered by renewable energy sources, including: - biomass-fired micro-cogeneration system works according to modifies Rankine cycle, - biomass-fired stoves with thermoelectric generators, - solar concentrated photovoltaic and micro-cogeneration systems, (iii) energy certificates and audits for buildings, (iv) solar-powered electromobility solutions, (v) similar topics.
This paper shows the results of experimental and numerical investigations related to the energy use of straw from the point of view of its preparation (drying), combustion, energy production and emissions. Experimental works on straw drying were conducted on a specially developed installation based on dedicated batch straw dryers, which use flue gas, coming from a 500 kWth boiler, as a drying medium. The further part of the work was conducted on a prototype of a micro-scale cogeneration system that operates according to a low temperature Rankine cycle and it is powered by a 100 kWth biomass-fired batch boiler. Conducted so far research allowed to analyse selected operation aspects of the developed system. An analysis of straw drying, proximate, ultimate, and heating value analysis, heat generation process in the boiler, steam generation process in the evaporator and superheater, steam engine operation as well as dust emissions during straw combustion related to the boiler return temperature were presented. Energy transferred from flue gases to straw with a high value of moisture content was 5.75 kW, which allowed to evaporate about 18.6 kg of water from 192 kg wheat straw bale. The moisture content was reduced from 36.9 to 27.2%. The power generated in the system was lower than the one expected, since only 1.15 kWel was achieved which was about 1% of the boiler’s heat capacity. Such result was caused by construction restrictions of the installation. Experimental results were supported by dynamic simulations performed in TRNSYS software. The simulations were performed for both the current configuration of the system and suggested modifications. Simulation results showed, that the expected power generation in the final version of the system should be at a level of 10 kWel. Results obtained during the analysis of multi-cyclone operation showed, that the concentration of dust was reduced in a range from 55% to even 85% depending on the temperature of the boiler return and flue gas flowrate in multi-cyclone.
Krzysztof Sornek; Maciej Żołądek; Wojciech Goryl; Rafał Figaj. The operation of a micro-scale cogeneration system prototype – A comprehensive experimental and numerical analysis. Fuel 2021, 295, 120563 .
AMA StyleKrzysztof Sornek, Maciej Żołądek, Wojciech Goryl, Rafał Figaj. The operation of a micro-scale cogeneration system prototype – A comprehensive experimental and numerical analysis. Fuel. 2021; 295 ():120563.
Chicago/Turabian StyleKrzysztof Sornek; Maciej Żołądek; Wojciech Goryl; Rafał Figaj. 2021. "The operation of a micro-scale cogeneration system prototype – A comprehensive experimental and numerical analysis." Fuel 295, no. : 120563.
The combined heat and power generation (CHP), based on the use of renewable energy sources, is an essential aspect of currently developing energy systems. Among the other renewable sources, biomass is characterized by high caloric value, wide availability, and low prices. This paper shows the operational aspects of the prototypical micro-scale CHP system powered by a straw-fired batch boiler and works according to the modified Rankine cycle. Based on the previously conducted studies, a dedicated construction of a 100-kW straw-fired batch boiler was designed and implemented. Thermal oil heated in the boiler is transferred respectively to the evaporator, superheater, and additional oil/water heat exchanger. The control of the system operation is realized using a dedicated automation system based on the programmable logic controller (PLC). Presented results include the impact of various fuel inputs on the thermal oil heating process. The average power transferred from the boiler to the thermal oil in the case of a single combustion process was ca. 69 MJ/h (consequently the amount of transferred energy was ca. 121 MJ). During the continuous combustion process, the average power was ca. 169 MJ/h and energy transferred from the boiler to the oil was ca. 542 MJ. The power generated in the power generator resulted mainly from three parameters: the actual steam pressure and steam flow as well as from the actual set of electric load. The maximum power in the case of operation without maximum power tracking was 825 W, while the maximum power obtained when maximum power tracking was used was ca. 1,150 W. Such a low value of electricity generation was a consequence of the system's limitations (resulting e.g. in a significant drop in steam temperature and pressure in the steam bus). Finally, a list of possible modifications was given.
K. Sornek. Study of the operation of straw-fired boiler dedicated to steam generation for micro-cogeneration system. IOP Conference Series: Earth and Environmental Science 2021, 642, 012007 .
AMA StyleK. Sornek. Study of the operation of straw-fired boiler dedicated to steam generation for micro-cogeneration system. IOP Conference Series: Earth and Environmental Science. 2021; 642 (1):012007.
Chicago/Turabian StyleK. Sornek. 2021. "Study of the operation of straw-fired boiler dedicated to steam generation for micro-cogeneration system." IOP Conference Series: Earth and Environmental Science 642, no. 1: 012007.
Renewable energy sources, such as solar, wind, biomass, and geothermal energy, are being more and more adopted in small and micro-scale distributed generation systems. In this context, different hybrid configurations and layouts that may adopt, lead to different energy and economic performance of energy generation systems. In micro-scale applications, biomass and solar energy sources are more frequently investigated in literature compared to other combinations as biomass and wind energy. The analysis of the performance of a novel small-scale trigeneration system is presented in this paper. The system includes biomass boiler, water steam turbine, absorption chiller, and wind turbine, and it is linked to the electric grid by means of a bidirectional connection, allowing to the store virtually the electrical energy produced in excess, and use when needed. For the proposed system, a zootechnical farm and a residential building are considered as case study, including different scenarios for the reference energy system. The Transient System Simulation (TRNSYS software is used to model, simulate, and investigate the system performance under realistic operation conditions. Energy and economic performance of the system is assessed by means of a daily, weekly, and yearly analysis. The effect of the main design parameters, as steam and wind turbine power on the system performance, is investigated by means of a sensitivity analysis. The investigations show that the Simple Pay Back time of the proposed system is below 6 years, when the biomass is free, capacities of steam and wind turbines lower than 4 kW are selected, and a reference system with a natural gas boiler and electrical grid is considered. The system allows one to achieve satisfactory energy and economic performance under the considered conditions, when a proper design of the system component capacities is adopted.
Rafał Figaj; Krzysztof Sornek; Szymon Podlasek; Maciej Żołądek. Operation and Sensitivity Analysis of a Micro-Scale Hybrid Trigeneration System Integrating a Water Steam Cycle and Wind Turbine under Different Reference Scenarios. Energies 2020, 13, 5697 .
AMA StyleRafał Figaj, Krzysztof Sornek, Szymon Podlasek, Maciej Żołądek. Operation and Sensitivity Analysis of a Micro-Scale Hybrid Trigeneration System Integrating a Water Steam Cycle and Wind Turbine under Different Reference Scenarios. Energies. 2020; 13 (21):5697.
Chicago/Turabian StyleRafał Figaj; Krzysztof Sornek; Szymon Podlasek; Maciej Żołądek. 2020. "Operation and Sensitivity Analysis of a Micro-Scale Hybrid Trigeneration System Integrating a Water Steam Cycle and Wind Turbine under Different Reference Scenarios." Energies 13, no. 21: 5697.
Combined heat and power systems dedicated to micro-scale applications are currently increasing in popularity. The use of such systems is beneficial from the standpoint of increasing the usage of renewable energy, increasing energy efficiency and reducing CO2 emissions into the atmosphere. This paper shows two examples of prototypical micro-cogeneration systems powered by biomass. In the first, smaller one, electricity is generated in thermoelectric generators using heat from the wood-fired stove. The second one is equipped with a 100 kWt batch boiler and operates according to a modified Rankine cycle. The energy and ecological analysis were conducted and discussed, including selected aspects of heat and power generation and gaseous pollutant emission. Measurements were performed using a dedicated control and measurement station with a PLC controller. As was shown, thermoelectric generators operated respectively with the power of 22.5 We in the case of the air-cooled unit and 31.2 We in the case of the water-cooled unit. On the other hand, the maximum power level of ca. 1145 We was obtained in the system with a batch boiler operating according to a modified Rankine cycle. The ecological analysis showed that the average amount of CO emission during the wood combustion in the tested stove was 1916 mg/m3 (in the combustion phase). In the case of straw combustion, it was characterized by lower CO2 emissions compared to coal, but higher CO2 emissions compared to gasoline and natural gas. Based on the obtained results, some outlines for the systems development were given.
Krzysztof Sornek. Prototypical Biomass-Fired Micro-Cogeneration Systems—Energy and Ecological Analysis. Energies 2020, 13, 3909 .
AMA StyleKrzysztof Sornek. Prototypical Biomass-Fired Micro-Cogeneration Systems—Energy and Ecological Analysis. Energies. 2020; 13 (15):3909.
Chicago/Turabian StyleKrzysztof Sornek. 2020. "Prototypical Biomass-Fired Micro-Cogeneration Systems—Energy and Ecological Analysis." Energies 13, no. 15: 3909.
Refrigeration systems are necessary for people living in hot climates. A majority of tropical and subtropical countries uses electrical power as a source of cooling. During the seasons of high ambient temperature there is a significant cooling load due to increased level of energy consumption. Cooling systems are therefore necessary in African countries in order to keep medications and food in safe conditions. Furthermore, there is a power shortage crisis due to the high demand for cooling. TRNSYS software allows to simulate a complete solar-powered absorption cooling system. A model used in an experiment includes PV modules making it advantageous over a conventional cooling system. PV modules of assumed area are sufficient to maintain the temperature inside cooling device below 6°C over the whole year.
Jakub Kuś; Kyrylo Rudykh; Marcin Kobas; Maciej Żołądek; Szymon Sendłak; Maciej Gumułka; Krzysztof Sornek. Solar-driven Refrigerator for off-grid Regions. E3S Web of Conferences 2019, 103, 01001 .
AMA StyleJakub Kuś, Kyrylo Rudykh, Marcin Kobas, Maciej Żołądek, Szymon Sendłak, Maciej Gumułka, Krzysztof Sornek. Solar-driven Refrigerator for off-grid Regions. E3S Web of Conferences. 2019; 103 ():01001.
Chicago/Turabian StyleJakub Kuś; Kyrylo Rudykh; Marcin Kobas; Maciej Żołądek; Szymon Sendłak; Maciej Gumułka; Krzysztof Sornek. 2019. "Solar-driven Refrigerator for off-grid Regions." E3S Web of Conferences 103, no. : 01001.
The combustion processes of biomass occurring in furnaces run with an emission of exhaust gas consisting of groups of chemicals which occur both in gaseous and particulate-bound form. The purpose of the work presented in this paper was to investigate the impact of wood combustion processes occurring in domestic heating units (DHUs) on the emission of particulate matter (PM) and other exhaust components. The process of combustion was divided into three steps: A. firing, B. combustion, and C. post-combustion. During fuel burning, the weighting platform was used to measure variations in the mass of fuel and a gaseous analyzer was used to measure gaseous exhaust components such as CO2, CO, O2 and SO2. A dust sampler equipped with a dilution tunnel, a filter holder and a pump were installed in the stack. The samples of PM were collected on quartz fiber filters with a diameter of 47 mm. The PM was then analyzed for the presence of inorganic and organic components. The results obtained in the studies confirmed the influence of using the accumulation layer on the emitted exhausts. Application of accumulation layer led to decrease the emission of gaseous fumes (NO, NOx and SO2), although, the CO and PM emission were higher. One also observed the impact of combustion phase on the chemical composition of collected PM. The highest measured concentrations of analyzed PAH compounds were determined for acenaphthene (Ace) and benzo(a)pyrene (BaP). In all analyzed events BaP mostly contributed to the budget of PAHs in the final phase of burning: during the post-combustion process, when the temperature in the combustion chamber decreased. The application of the accumulation layer enabled to decrease the BaP concentration in the ignition phase of burning. The highest concentration of Ace was observed for the combustion phase using the Stove 1, while in the Stove 2, both with and without an accumulation layer, the Ace concentration was higher in the initial phase of burning.
Katarzyna Szramowiat-Sala; Anna Korzeniewska; Krzysztof Sornek; Marta Marczak; Faustyna Wierońska; Katarzyna Berent; Janusz Gołaś; Mariusz Filipowicz. The properties of particulate matter generated during wood combustion in in-use stoves. Fuel 2019, 253, 792 -801.
AMA StyleKatarzyna Szramowiat-Sala, Anna Korzeniewska, Krzysztof Sornek, Marta Marczak, Faustyna Wierońska, Katarzyna Berent, Janusz Gołaś, Mariusz Filipowicz. The properties of particulate matter generated during wood combustion in in-use stoves. Fuel. 2019; 253 ():792-801.
Chicago/Turabian StyleKatarzyna Szramowiat-Sala; Anna Korzeniewska; Krzysztof Sornek; Marta Marczak; Faustyna Wierońska; Katarzyna Berent; Janusz Gołaś; Mariusz Filipowicz. 2019. "The properties of particulate matter generated during wood combustion in in-use stoves." Fuel 253, no. : 792-801.
Nowadays, photovoltaic systems installed in urban areas may be essential for distributed generation and lead to increase energy security and improve economy of building exploitation. Unfortunately, in many cases their operation in urban area is not so efficient. It is connected with shadowing by neighbouring buildings, trees or by the HVAC systems installed on roofs (including such elements as fans, compressors, etc). Moreover, HVAC systems often occupy "the best" place on roofs. Level of shadowing varies during a day, and a year, significantly influencing on the power generation from PV installations. It caused serious difficulties in designing such installations (e.g. choosing position, orientation, number of modules etc.). In the paper a PV efficiency analysis was performed for the case of photovoltaic installation located on the roof of didactic building in Krakow centre. The projected power of the installation was 8.48 kWp (total nominal power of panels), and 7.5 kWp at the output of the inverters used for own building demand and car load station. The available area for PV system was strongly limited and achieving of the optimal tilting angle was impossible. Presented simulations have been conducted using two commercially available software: TRNSYS and Polysun. Results of the simulations were used for improving operation parameters of the installation. A three approaches was considered: avoiding the shadow, tilting angle optimization and redirecting of additional light stream.
Maciej Żołądek; M Filipowicz; K Sornek; R D Figaj. Energy performance of the photovoltaic system in urban area - case study. IOP Conference Series: Earth and Environmental Science 2019, 214, 012123 .
AMA StyleMaciej Żołądek, M Filipowicz, K Sornek, R D Figaj. Energy performance of the photovoltaic system in urban area - case study. IOP Conference Series: Earth and Environmental Science. 2019; 214 (1):012123.
Chicago/Turabian StyleMaciej Żołądek; M Filipowicz; K Sornek; R D Figaj. 2019. "Energy performance of the photovoltaic system in urban area - case study." IOP Conference Series: Earth and Environmental Science 214, no. 1: 012123.
Nowadays, aviation and maritime transportation produce 3% of world anthropogenic greenhouse gases emission. One of the main problems in maritime transportation is pollution emitted by traditional oil engines. It not only causes fish extinction but also produces CO2. So, there is a strong need to change the way people consider maritime transportation. Fuel switching may be significant part of the implementation of the UN Sustainable Development Goals 2030 Agenda. The AGH Solar Boat is a project that connects sustainable development with innovative technologies. It represents the various aspect of engineering from construction, material engineering to electronics and photovoltaics. This paper presents the numerical analysis of the performance of the monocrystalline flexible solar panels (GSC 170+ and GSC 150+) and electric engine used in the first version of the boat. The results are compared with numerical results of the oil engine. Such comparison allows to show the difference in the emitted CO2 as the saving in the air pollution. The importance of this research is significant for the future solution of solar powered engines in maritime transportation. There are great opportunities of using renewable energy in boats and ferries
W. Kapuścik; J. Maraszek; M. Borowicz; K. Sornek. AGH Solar Boat –the analysis of energy and ecological parameters of the solar powered boat. IOP Conference Series: Earth and Environmental Science 2019, 214, 012143 .
AMA StyleW. Kapuścik, J. Maraszek, M. Borowicz, K. Sornek. AGH Solar Boat –the analysis of energy and ecological parameters of the solar powered boat. IOP Conference Series: Earth and Environmental Science. 2019; 214 (1):012143.
Chicago/Turabian StyleW. Kapuścik; J. Maraszek; M. Borowicz; K. Sornek. 2019. "AGH Solar Boat –the analysis of energy and ecological parameters of the solar powered boat." IOP Conference Series: Earth and Environmental Science 214, no. 1: 012143.
The combined heat and power generation (CHP), based on the use of renewable energy sources, is an essential aspect of currently developing energy systems. Among the other renewable sources, biomass is characterized by high caloric value, wide availability, and low prices. This paper is focused on the study of the operation of a straw-fired boiler, as a part of developing a micro scale CHP system based on the modified Rankine Cycle operation. Based on the previously conducted studies, a dedicated construction of a 100-kWth straw-fired batch boiler was designed and implemented. Thermal oil heated in the boiler was transferred respectively to the evaporator, superheater, and oil/water emergency heat exchanger. The control of the system operation was realized using a dedicated automation system based on the programmable logic controller (PLC). Presented results include the impact of various fuel inputs and the boiler's control scenario on the oil heating process. The power received by the evaporator and superheater (the first phase of combustion process) reached a level of 48 kW temporarily. The ratio of heat taken from evaporator and superheater to the theoretical amount of chemical energy accumulated in the fuel ranged from 16.8% to 21.4%. Moreover, also observed were differences in carbon monoxide emission from the boiler. Based on the results, some outlines for controlling the operation of the boiler were obtained
K. Sornek; M. Filipowicz. Study of the operation of straw-fired boiler dedicated to steam generation for micro-cogeneration system. IOP Conference Series: Earth and Environmental Science 2019, 214, 012108 .
AMA StyleK. Sornek, M. Filipowicz. Study of the operation of straw-fired boiler dedicated to steam generation for micro-cogeneration system. IOP Conference Series: Earth and Environmental Science. 2019; 214 (1):012108.
Chicago/Turabian StyleK. Sornek; M. Filipowicz. 2019. "Study of the operation of straw-fired boiler dedicated to steam generation for micro-cogeneration system." IOP Conference Series: Earth and Environmental Science 214, no. 1: 012108.
Renewable energy based micro cogeneration systems are an interesting option for domestic, agricultural and commercial sectors. In this paper, a dedicated system with a 100 kWth biomass-fired boiler was proposed. Developed system works according to modified Rankine Cycle operation. Steam generated in two shell and tube heat exchangers is used to power steam engine (connected with power generator) and then flows via condenser to degasifier. During the presented tests, the selected parameters of the boiler, oil circuit and steam/condensate circuit were analyzed. As was shown, the maximum thermal power taken from the oil circuit to evaporate condensate and superheat steam was ~105 kWth (it was ~91% of thermal power generated in the boiler). The value steam pressure varied from 2 to 5 bars during operation of the steam engine. Steam mass flow was then equal to ~105 kg/h, what allowed to generate electric power at a level of ~1.05 kWel. Such a low value resulted e.g. from limitations in the oil temperature, limitations in the steam temperature, steam pressure and steam flow, limitations caused by power generator’s construction, as well as other construction and operating parameters.
Krzysztof Sornek; Wojciech Goryl; Mariusz Filipowicz. Experimental tests of the prototypical micro-cogeneration system with a 100 kW biomass-fired boiler. E3S Web of Conferences 2018, 70, 03014 .
AMA StyleKrzysztof Sornek, Wojciech Goryl, Mariusz Filipowicz. Experimental tests of the prototypical micro-cogeneration system with a 100 kW biomass-fired boiler. E3S Web of Conferences. 2018; 70 ():03014.
Chicago/Turabian StyleKrzysztof Sornek; Wojciech Goryl; Mariusz Filipowicz. 2018. "Experimental tests of the prototypical micro-cogeneration system with a 100 kW biomass-fired boiler." E3S Web of Conferences 70, no. : 03014.
Nowadays, the use of wood for cooking and heating has become very popular, especially in rural and suburban areas. Fireplaces and solid fuel stoves with heat accumulation provide both low-cost heating and an aesthetic atmosphere from burning wood. Additional benefits may also be connected with micro-scale power generation, realized using thermoelectric generators. The aim of this study was to examine the selected aspects of integration of a typical wood-fired stove with commercially available thermoelectric generators. Among several aspects included in the carried out analysis, there were e.g. the operation parameters of the tested stove (including temperature variations during combustion process), the efficiency of electricity generation in the tested thermoelectric generators and the requirements for the stove configuration and operation. Three types of thermoelectric generators were tested: two generators designed for mounting on a flat hot surface (cooling respectively by air and water) and one designed for mounting on a flue gas channel (cooling by water). The experiments were carried out using dedicated measuring, controlling, and visualizing systems with a PLC controller as well as an infrared camera. Thermographic analysis allowed determining of the temperature distribution on the rear wall of the stove and selection of the most optimal areas for mounting generators. However, non-homogeneous temperature distribution was observed, identified as one reason for lowering of operational efficiency of the generators. A further problem was identified in the case of the generator mounted on the flue gas channel being too low a cross-section of its gas channels (reducing flue gas flow volume). These problems significantly impacted on the operating characteristics of the thermoelectric generators – meaning they produced no more than 41.7, 31.2, and 7.2% of their nominal power, respectively. The obtained results enabled the proposal of two approaches connected with further development of the micro scale cogeneration systems with thermoelectric generators: These two methods would differ in terms of costs, final product price, and necessary fitting of production lines.
Krzysztof Sornek; Mariusz Filipowicz; Maciej Żołądek; Radosław Kot; Małgorzata Mikrut. Comparative analysis of selected thermoelectric generators operating with wood-fired stove. Energy 2018, 166, 1303 -1313.
AMA StyleKrzysztof Sornek, Mariusz Filipowicz, Maciej Żołądek, Radosław Kot, Małgorzata Mikrut. Comparative analysis of selected thermoelectric generators operating with wood-fired stove. Energy. 2018; 166 ():1303-1313.
Chicago/Turabian StyleKrzysztof Sornek; Mariusz Filipowicz; Maciej Żołądek; Radosław Kot; Małgorzata Mikrut. 2018. "Comparative analysis of selected thermoelectric generators operating with wood-fired stove." Energy 166, no. : 1303-1313.
Krzysztof Sornek; Mariusz Filipowicz; Jakub Jasek. The Use of Fresnel Lenses to Improve the Efficiency of Photovoltaic Modules for Building-integrated Concentrating Photovoltaic Systems. Journal of Sustainable Development of Energy, Water and Environment Systems 2018, 6, 415 -426.
AMA StyleKrzysztof Sornek, Mariusz Filipowicz, Jakub Jasek. The Use of Fresnel Lenses to Improve the Efficiency of Photovoltaic Modules for Building-integrated Concentrating Photovoltaic Systems. Journal of Sustainable Development of Energy, Water and Environment Systems. 2018; 6 (3):415-426.
Chicago/Turabian StyleKrzysztof Sornek; Mariusz Filipowicz; Jakub Jasek. 2018. "The Use of Fresnel Lenses to Improve the Efficiency of Photovoltaic Modules for Building-integrated Concentrating Photovoltaic Systems." Journal of Sustainable Development of Energy, Water and Environment Systems 6, no. 3: 415-426.
Nowadays, the worldwide growing demand for energy from renewable sources is observed. This fact is related to a number of factors, especially environmental ones. In the renewable energy sector, the most dynamic development which can be seen is wind energy. This is due to the construction of huge wind turbines, whose power exceeds even a few megawatts. The main problem that should be solved is finding a proper location for such turbines. Generally, wind turbines are located off-shore and on-shore. The most favourable are off-shore due to better wind condition, which relates to power generation. Notwithstanding, it is possible to install smaller turbines in urban areas: so-called wind turbines in built-up areas or integrate wind turbines with buildings (BIWT). This creates an opportunity to develop an integrated system of small energy sources located directly in cities. However, it is necessary to be aware of the many problems connected with the above mentioned installations. The article presents an overview and data related to operation of wind turbines integrated with the Center of Energy AGH building.
Mariusz Filipowicz; Maciej Żołądek; Wojciech Goryl; Krzysztof Sornek. Urban ecological energy generation on the example of elevation wind turbines located at Center of Energy AGH. E3S Web of Conferences 2018, 49, 00023 .
AMA StyleMariusz Filipowicz, Maciej Żołądek, Wojciech Goryl, Krzysztof Sornek. Urban ecological energy generation on the example of elevation wind turbines located at Center of Energy AGH. E3S Web of Conferences. 2018; 49 ():00023.
Chicago/Turabian StyleMariusz Filipowicz; Maciej Żołądek; Wojciech Goryl; Krzysztof Sornek. 2018. "Urban ecological energy generation on the example of elevation wind turbines located at Center of Energy AGH." E3S Web of Conferences 49, no. : 00023.
This paper shows results of initial tests of prototypical microcogeneration system based on the modified Rankine cycle operation. This system is powered by a 100 kW straw-fired batch boiler which was adapted to operate as a high temperature heat source. Thermal oil, heated up to 190-200°C, transfers heat to two shell and tube heat exchangers (evaporator and superheater). Steam powers a 2-cylinder, double-acting, 20-horsepower steam engine. Then, it is condensed in a condenser (another shell and tube heat exchanger) and pumped to the degasser. Finally, condensate is pumped to the evaporator and the whole process starts again. The steam engine is connected with a power generator. The operation of the developed micro-cogeneration system is controlled by the control and measurement system based on WAGO PFC200 PLC controller. The following parameters are recording: temperature, pressure and medium flow (in the boiler, oil, steam and water circuits). The results of the initial tests are promising. Power generated in the system is actually about 1,0 kWel. Such power is sufficient for supplying a part of the system’s equipment. On the other hand, it is finally expected to ensure selfsufficient operation of the tested system.
Krzysztof Sornek; Wojciech Goryl; Mariusz Filipowicz. Biomass-powered micro cogeneration system based on the modified Rankine Cycle operation - the initial tests. E3S Web of Conferences 2018, 49, 00105 .
AMA StyleKrzysztof Sornek, Wojciech Goryl, Mariusz Filipowicz. Biomass-powered micro cogeneration system based on the modified Rankine Cycle operation - the initial tests. E3S Web of Conferences. 2018; 49 ():00105.
Chicago/Turabian StyleKrzysztof Sornek; Wojciech Goryl; Mariusz Filipowicz. 2018. "Biomass-powered micro cogeneration system based on the modified Rankine Cycle operation - the initial tests." E3S Web of Conferences 49, no. : 00105.
Highlights•The proper air distribution is especially important in the initial phase of combustion.•The reduction of CO emission is possible introducing additional air inlets.•The CO emission is very low in the combustion phase in opposite to the initial phase.•The CO emission satisfies Ecodesign requirements when proper control system is used. AbstractThe paper presents the results of works aimed at the reduction of carbon monoxide (CO) emissions to the atmosphere during wood combustion in a stove-fireplace with accumulation (SFA). The first part of the conducted study includes the comparison of combustion parameters of beech wood characterized by varying qualities. The second part encompassed testing different variants of control of the SFA operation. Two signals: the volume of oxygen (O2) and carbon monoxide (CO) emission were used in the first version of developed controller. These signals were coupled with upper air, bottom air and rear air dampers, controlling the opening and closing of the air throttles depending on the pre-set boundary parameters (minimal set content of oxygen in exhaust gases and the maximal set content of carbon monoxide). The studies conducted so far have confirmed the possibility to reach the exploitation parameters required by the BImSchV 2 and Ecodesign standards.
Krzysztof Sornek; Mariusz Filipowicz; Kamila Rzepka. Study of clean combustion of wood in a stove-fireplace with accumulation. Journal of the Energy Institute 2017, 90, 613 -623.
AMA StyleKrzysztof Sornek, Mariusz Filipowicz, Kamila Rzepka. Study of clean combustion of wood in a stove-fireplace with accumulation. Journal of the Energy Institute. 2017; 90 (4):613-623.
Chicago/Turabian StyleKrzysztof Sornek; Mariusz Filipowicz; Kamila Rzepka. 2017. "Study of clean combustion of wood in a stove-fireplace with accumulation." Journal of the Energy Institute 90, no. 4: 613-623.
E3S Web of Conferences, open access proceedings in environment, energy and earth sciences
Krzysztof Sornek; Eugeniusz Mokrzycki; Maciej Duraczyński; Mariusz Filipowicz; Wojciech Goryl; Tomasz Mirowski. The analysis of the wind potential in selected locations in the southeastern Poland. E3S Web of Conferences 2017, 14, 01014 .
AMA StyleKrzysztof Sornek, Eugeniusz Mokrzycki, Maciej Duraczyński, Mariusz Filipowicz, Wojciech Goryl, Tomasz Mirowski. The analysis of the wind potential in selected locations in the southeastern Poland. E3S Web of Conferences. 2017; 14 ():01014.
Chicago/Turabian StyleKrzysztof Sornek; Eugeniusz Mokrzycki; Maciej Duraczyński; Mariusz Filipowicz; Wojciech Goryl; Tomasz Mirowski. 2017. "The analysis of the wind potential in selected locations in the southeastern Poland." E3S Web of Conferences 14, no. : 01014.
The paper presents an analysis of the use and potential of hydropower in Podkarpackie (Subcarpathian) Voivodship. The current usage of hydropower in the Region is presented, divided for range of generated power, geographical location and given rivers. Existing and planned artificial water reservoirs are taken into consideration in frame of hydropower development in the Region. Selected case studies related to varied hydropower plants are discussed. Problems connected with development of the hydropower were identified and considered. For each county in the Region theoretical available power possible to install in the main rivers was indicated, taking into account environmental aspects, technical problems with connection to the electrical grid and overall possibility of the facility installation. For each county communities with the best favorable situation are indicated. It is discussed the analysis of the evaluation of the use of hydropower in Podkarpackie Voivodship and provided information on planned and considered investments in hydropower plants. In addition, an analysis of the energy potential of the main rivers of the Podkarpackie Region have been procced to indicating the most favorable areas for location of hydropower plants. Moreover, given the environmental conditions, an analysis of the power estimation of the hydropower plants were made.
Wojciech Goryl; Mariusz Filipowicz; Krzysztof Sornek. The analysis of the hydropower potential in Podkarpackie Voivodship. E3S Web of Conferences 2017, 14, 1018 .
AMA StyleWojciech Goryl, Mariusz Filipowicz, Krzysztof Sornek. The analysis of the hydropower potential in Podkarpackie Voivodship. E3S Web of Conferences. 2017; 14 ():1018.
Chicago/Turabian StyleWojciech Goryl; Mariusz Filipowicz; Krzysztof Sornek. 2017. "The analysis of the hydropower potential in Podkarpackie Voivodship." E3S Web of Conferences 14, no. : 1018.
Straw-fired batch boilers, due to their relatively simple structure and low operating costs, are an excellent source of heat for a wide range of applications. A concept prototype of a cogeneration system with a straw-fired batch boiler was developed. The basic assumptions were based on the principles of the Rankine Cycle and the Organic Rankine Cycle systems with certain design modifications. Using the prototype design of a system that collects high-temperature heat from the boiler, studies were performed. The studies involved an analysis of the flue gas temperature distribution in the area of the oil exchanger, a comparison of the instantaneous power of the boiler’s water and oil circuits for different modes of operation, as well as an analysis of the flue gas. In the proposed system configuration where the electricity production supplements heat generation, the power in the oil circuit may be maintained at a constant level of approx. 20-30 kW. This is possible provided that an automatic fuel supply system is applied. Assuming that the efficiency of the electricity generation system is not less than 10%, it will be possible to generate 2-3 kW of electricity. This value will be sufficient, for an on-site operation of the boiler.
Krzysztof Sornek; Mariusz Filipowicz. A study of the applicability of a straw-fired batch boiler as a heat source for a small-scale cogeneration unit. Chemical and Process Engineering 2016, 37, 503 -515.
AMA StyleKrzysztof Sornek, Mariusz Filipowicz. A study of the applicability of a straw-fired batch boiler as a heat source for a small-scale cogeneration unit. Chemical and Process Engineering. 2016; 37 (4):503-515.
Chicago/Turabian StyleKrzysztof Sornek; Mariusz Filipowicz. 2016. "A study of the applicability of a straw-fired batch boiler as a heat source for a small-scale cogeneration unit." Chemical and Process Engineering 37, no. 4: 503-515.
E3S Web of Conferences, open access proceedings in environment, energy and earth sciences
Krzysztof Sornek; M. Filipowicz; M. Dudek; T. Olkuski; K. Styszko. A study of selected aspects of the operation of thermoelectric generator incorporated in a biomass-fired stove. E3S Web of Conferences 2016, 10, 00087 .
AMA StyleKrzysztof Sornek, M. Filipowicz, M. Dudek, T. Olkuski, K. Styszko. A study of selected aspects of the operation of thermoelectric generator incorporated in a biomass-fired stove. E3S Web of Conferences. 2016; 10 ():00087.
Chicago/Turabian StyleKrzysztof Sornek; M. Filipowicz; M. Dudek; T. Olkuski; K. Styszko. 2016. "A study of selected aspects of the operation of thermoelectric generator incorporated in a biomass-fired stove." E3S Web of Conferences 10, no. : 00087.
E3S Web of Conferences, open access proceedings in environment, energy and earth sciences
Krzysztof Sornek. The comparison of solar water heating system operation parameters calculated using traditional method and dynamic simulations. E3S Web of Conferences 2016, 10, 00137 .
AMA StyleKrzysztof Sornek. The comparison of solar water heating system operation parameters calculated using traditional method and dynamic simulations. E3S Web of Conferences. 2016; 10 ():00137.
Chicago/Turabian StyleKrzysztof Sornek. 2016. "The comparison of solar water heating system operation parameters calculated using traditional method and dynamic simulations." E3S Web of Conferences 10, no. : 00137.