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Search results for: dywersyfikacja energii
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Conventional and Alternative Sources of Thermal Energy in the Production of Cement—An Impact on CO2 Emission
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Clean and Affordable Energy within Sustainable Development Goals: The Role of Governance Digitalization
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Renewable Energy Sources in the Lubusz Voivodship (Poland). The Present Conditions and Perspectives for Development
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Energy shifts of K- and L-lines as spectroscopic diagnostic of Z-pinch plasmas
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Low-Temperature Exfoliated Graphenes: Vacuum-Promoted Exfoliation and Electrochemical Energy Storage
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Optimization of the Geothermal Energy for District Heating in the Polish Tatras Region: A Case Study
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Advances in Pd Nanoparticle Size Decoration of Mesoporous Carbon Spheres for Energy Application
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Low energy γ-rays scintillation detection with large area avalanche photodiodes
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REVIEW THE MAIN TECHNOLOGIES OF THE WIRELESS CHARGING OF ENERGY ACCUMULATORS FOR SMALL-PURCHASING SYSTEMS
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Embedded system using Bluetooth Low Energy sensors for smart farming applications
PublicationThe main goal of this Bachelor of Engineering project titled Embedded system using Bluetooth Low Energy sensors for smart farming applications is to create a prototype of a system consistent with Agriculture 4.0 concept using Bluetooth Low Energy (BLE) technology. Developed solution shall be easy in implementation and its main functionality shall be periodic gathering of data from environmental sensors...
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Photonics applications in astronomy, communications, industry, and high energy physics experiments 2014
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Towards an integrated assessment of environmental and human health impact of energy sector in Poland
PublicationReferat prezentuje system zintegrowanej oceny wpływu sektora energetycznego na stan środowiska i zdrowie ludzkie w Polsce. W podejściu wykorzystano kombinację modelu transportu zanieczyszczeń w powietrzu POLAIR 3D z modelem informacyjno-symulacyjnym RAINS. Model oszacowuje emisje i koncentracje zanieczyszczeń powietrza, koszty kontroli emisji zanieczyszczeń i inne koszty związane z różnymi scenariuszami rozwoju sektora energetycznego.The...
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An Innovative Decision Support System to Improve the Energy Efficiency of Buildings in Urban Areas
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Household standards and socio-economic aspects as a factor determining energy consumption in the city
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Mitigating the Energy Consumption and the Carbon Emission in the Building Structures by Optimization of the Construction Processes
PublicationFor decades, among other industries, the construction sector has accounted for high energy consumption and emissions. As the energy crisis and climate change have become a growing concern, mitigating energy usage is a significant issue. The operational and end of life phases are all included in the building life cycle stages. Although the operation stage accounts for more energy consumption with higher carbon emissions, the...
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High-Energy-Low-Temperature Technologies for the Synthesis of Nanoparticles: Microwaves and High Pressure
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Recent improvements in prediction of protein structure by global optimization of a potential energy function
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Estimation of Solar Energy Influx to the Sea in the Light of Fast Satellite Technique Development
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Energy Recovery Analysis in A-Type Pressure Regulation and Measurement Stations in Istanbul, Esenyurt
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Threshold photoelectron studies of isoxazole over the energy range 9.9-30 eV
PublicationThe threshold photoelectron spectrum of the isoxazole molecule, C3H3NO has been measured over the photon energy range 9.9-30 eV with the use of synchrotron radiation. In the 9.9-10.8 eV range, corresponding to photoionization from the highest occupied molecular orbital 3a"(π3), seven well resolved vibrational series have been observed and their modes are tentatively assigned. A strong adiabatic ionization, with an energy of 11.132...
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Elastic electron scattering in krypton in the energy range from 5 to 10 eV
PublicationZmierzono różniczkowe przekroje czynne na rozproszenie sprężyste elektronów w kryptonie dla energii elektronów 5, 7.5 oraz 10 eV, w zakresie kątów rozproszenia od 30 do 180 stopni. Pomiary w zakresie dużych kątów rozproszenia wykonano wykorzystując metodę lokalnego pola magnetycznego.
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Fragmentation of isoxazole molecules by electron impact in the energy range 10-85 eV
PublicationBadano fragmentację cząsteczek isoxazolu w zderzeniach z elektronami metodą wzbudzenia optycznego. Obserwowano linie wzbudzonego wodoru z serii Balmera oraz pasma emisyjne fragmentów CH oraz CN. Zmierzono bezwzględne wartości emisyjnych przekrojów czynnych.
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Accurate and continuous adhesive fracture energy determination using an instrumented wedge test
PublicationThe wedge test and the related double cantilever beam test are practical methods of assessing structural adhesive fracture energy. In the former, and to a lesser extent the latter, a recognised problem is the difficulty of following the length of the growing crack, required to calculate fracture energy with any accuracy. We present a novel method of measurement of crack length that has the advantages of being accurate and allowing...
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Higher harmonics of converter currents in energy conversion system of small water plants
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Efficiency analysis of an energy conversion system for a variable speed small hydropower plant
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Cogging torque analysis based on energy approach in surface-mounted PM machines
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Research into GTA automatic soft soldering technology for solar energy collector components
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Analysis of energy and economic efficiency water heating by heat pump air-water
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Analysis of energy and economic efficiency of water heating system powered by photovoltaic module
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Organic-inorganic materials for fast charging-discharging processes in energy storage devices
PublicationPraca dotyczy materiału kompozytowego złożonego z poli(3,4-etylenodioksytiofenu) i heksacyjanokobaltanu żelaza. Materiał został otrzymany elektrochemicznie bezpośrednio na elektrodzie tytanowej metodą jednoetapowa z zawiesiny zawierającej monomer (EDOT) oraz Fe3[Co(CN)6]2 w postaci proszku. Warstwy pEDOT/FehcCo otrzymane potencjostatycznie ładunkiem od 0,6 do 1,5 C/cm2 charakteryzują się różną grubością (od 1,9 do 4 μm) zależną...
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ENERGY AND EMISSION QUALITY RANKING OF NEWLY PRODUCED LOW-SULPHUR MARINE FUEL
PublicationThe article describes the methodology of engine tests on new types of low-sulphur marine fuels in laboratory conditions in order to conduct a comprehensive assessment of their suitability for powering full-size marine engines. The innovativeness of the proposed solution consists of adapting the laboratory Diesel Engine Test Bed to carry out experimental tests using residual and alternative fuels so that it is possible to imitate...
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Data and knowledge supporting decision-making for the urban Food-Water-Energy nexus
PublicationCities are hubs of innovation and wealth creation, and magnets for an increasing urban population. Cities also face unprecedented challenges in terms of food, water and energy scarcity, and governance and management. Urban environmental issues are no longer problems for experts to address but have become issues of public debate, in which knowledge from multiple sectors is needed to support inclusive governance approaches. Consequently,...
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Phytoremediation—From Environment Cleaning to Energy Generation—Current Status and Future Perspectives
Publication:Phytoremediationis a technology based on the use of green plants to remove, relocate, deactivate, or destroy harmful environmental pollutants such as heavy metals, radionuclides, hydrocarbons, and pharmaceuticals. Under the general term of phytoremediation, several processes with distinctively different mechanisms of action are hidden. In this paper, the most popular modes of phytoremediation are described and discussed. A broad...
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Hybrid Multi-Criteria Method of Analyzing the Location of Distributed Renewable Energy Sources
PublicationThis paper presents the development and the application of a hybrid multi-criteria method, the combination of the Analytic Hierarchy Process (AHP), and numerical taxonomy (NT),to support the decision making on the location of distributed renewable energy sources meetingvarious types of assessment criteria. Finding criteria weights, using the AHP method, eliminates thedisadvantage of NT—which, in current form, is defined by its...
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Supercapacitors in stand-alone pv systems with instantaneus high output energy pulses
PublicationSuperkondensatory (ang. supercapacitors, ultracapacitors, double-layer capacitors, gold capacitors and power capacitors) stanowią stosunkową nowość w energetyce prądu stałego, zwłaszcza w dziedzinie magazynowania i oddawania energii. Podjęto próby zastosowania superkondensatorów jako jedynego lub wspierającego źródła, służącego do gromadzenia energii PV w autonomicznych instalacjach. Opracowany we własnym zakresie, wykonany i opisany...
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Valuation method for operation of crankshaft-piston assembly in combustion engines in energy approach
PublicationPrzedstawiono propozycję wartościowania (ilościowego określenia) działania dowolnego układu korbowo-tłokowego silnika o zapłonie samoczynnym, w którym zachodzą oddziaływania energetyczne w określonym czasie. Działanie to rozumiane jest jako przekazywanie odbiornikowi energii w ustalonym czasie, w którym zachodzi przetwarzanie i przenoszenie energii w formie pracy i ciepła. Wartościowanie działania układów korbowo-tłokowych silników...
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Use of numerical methods in the analysis of traction energy systems—an overview of the practical examples
PublicationA characteristic feature of trolleybus transport is the random nature of traffic caused by congestion. It predestinates statistical and numerical methods for the analysis of trolleybus energy system. There are presented 3 methods of trolleybus traction system analysis: simulation of supply system based on Monte Carlo method, analysis of energy recovery potential based on statistical data analysis and benchmark of trolleybus supply...
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Design analysis of ORC micro-turbines making use of thermal energy of oceans
PublicationThe article presents the results of the analysis of energy conversion cycles making use of thermal energy of oceans. The objects of analysis were two cases of closed Organic Rankine Cycle (ORC) power plants, which were: the cycle in which the vapour of the working medium was produced by warm oceanic water in the circum-equatorial zone, and the so-called “arctic” cycle in which this vapour was produced by non-frozen water in the circumpolar...
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Numerical Analysis of Impact of Energy Buoy Anchoring Configurations on its Motion and Efficiency
PublicationThis paper presents a numerical analysis of the impact of energy buoy mooring configurations on its movement on the wave and effectiveness. The method used to analyse the buoy movement modelling in six degrees of freedom was described in a paper presented at the Conference 2011. Simulations of the buoy movement in regular wave and power calculations were conducted for several configurations of anchoring systems and position of...
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Phase change thermal energy storage – the experience of the materials preparation for the specific applications.
PublicationThermal energy storage and temperature stabilization is very important in many engineering applications. There are three kinds of thermal energy storage: sensible heat, latent heat and reversible chemical reaction heat. Phase change materials (PCM) absorb, store and release large amounts of energy in the form of latent heat, at constant temperature, called the transition temperature. Many innovative applications could be found...
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A modified method of vibration surveillance by using the optimal control at energy performance index
PublicationA method of vibration surveillance by using the optimal control at energy performance index has been creatively modified. The suggested original modification depends on consideration of direct relationship between the measured acceleration signal and the optimal control command. The paper presents the results of experiments and Hardware- in-the-loop simulations of a new active vibration reduction algorithm based on the energy...
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Electrical energy generation in photovoltaic systems installed in North Poland : problems and possibilities
PublicationCelem analizy było określenie potencjalnych możliwości generowania energii elektrycznej za pomocą modułów fotowoltaicznych w warunkach geograficznych Polski Północnej poprzez: obliczenie energii padającego promieniowania słonecznego w roku pomiarowym dla miasta Gdańska oraz wyznaczenie ilości energii elektrycznej, jaką można uzyskać przy pomocy instalacji modułów fotowoltaicznych z monokrystalicznego i polikrystalicznego krzemu.
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An Ultra-Low-Energy Analog Comparator for A/D Converters in CMOS Image Sensors
PublicationThis paper proposes a new solution of an ultra-low-energy analog comparator, dedicated to slope analog-to-digital converters (ADC), particularly suited for CMOS image sensors (CISs) featuring a large number of ADCs. For massively parallel imaging arrays, this number may be as high as tens-hundreds of thousands ADCs. As each ADC includes an analog comparator, the number of these comparators in CIS is always high. Detailed analysis...
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Super capacitor energy bank MEDCOM UCER-01 in Gdynia trolleybus system
PublicationSince 2001, trolleybus system in Gdynia has been involved in many activities related to the reduction of power consumption, both in terms of implementation and research and development. The installation of the supercapacity energy bank on substation Wielkopolska in 2014 year was one of them. It is the first such big stationary supercapacitor storage system installed in trolleybus supply system in the Middle - Eastern Europe. The...
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Potential energy surfaces of the low-lying electronic states of the Li+LiCs system
PublicationAb initio quantum chemistry calculations are performed for the mixed alkali triatomic system. Global minima of the ground and first excited doublet states of the trimer are found and Born-Oppenheimer potential energy surfaces of the Li atom interacting with the LiCs molecule were calculated for these states. The lithium atom is placed at various distances and bond angles from the lithium-caesium dimer. Three-body nonadditive forces...
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A method to assess transverse vibration energy of ship propeller shaft for diagnostic purposes
PublicationThe article discusses a key problem of ship propulsion system vibration diagnostics, which concerns assessing this part of mechanical energy transmitted from the main engine to the ship propeller which is dissipated due to propeller shaft vibration. A simplified calculation model is proposed which allows the total energy of the generated torsional vibration to be assessed from the shaft deflection amplitude measured at the mind-span...
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Annihilation rates of low-energy positron scattering from simple diatomic molecules
PublicationWe discuss the calculations of Zeff coefficients for a series of diatomic molecules over the range of energies below the positronium formation. During the development of a general code for polyatomic, nonlinear molecules colliding with positrons, it was discovered that the earlier one, employed only for diatomic molecules, had an error. The error is corrected and the corrected results are presented here. We also discuss a way of...
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Optimization of the efficiency of braking energy recovery in rail transport by changing arrival time
PublicationThe article refers to the previous work of the authors, in which the model of traffic organization of cooperating trains including the optimization of the use of energy returned to the catenary was presented. In the presented article, the model was modified by changing the main control variable, which affects the efficient use of energy. Departure time was changed for the arrival time of the train to the stop or station. The optimization...
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Modular power converter topologies for energy storage and electric power distribution systems
PublicationThis paper describes selected issues concerning realization of energy storage system (ESS) designed to operate in power distribution system. In order to achieve scalability of the system a modular approach is proposed. In addition to this different configuration of the system are analyzed, where depending on requirements and application a scalability in power, in energy capacity of energy storage resource and both in power and...
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A unified approach to the analysis of electric energy and fuel consumption of cars in city traffic
PublicationForecasting fuel and electricity consumption is an important factor determining the direction of changes in road engineering solutions, traffic management, selection of routes for public transport and development more efficient car drive systems. With a reliable and easy-to-use computational tool, it is possible to reduce the consumption of primary energy sources and reduce the emission of toxic compounds in cities. An analysis...