Politechniki Czestochowskiej

Częstochowa, Poland

Politechniki Czestochowskiej

Częstochowa, Poland

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Nitkiewicz A.,Wydziale Inzynierii i Ochrony Srodowiska Politechniki Czestochowskiej | Sekret R.,Politechniki Czestochowskiej
Rynek Energii | Year: 2010

In this paper the concept of low temperature goethermal heat-generating plant and its utilization for heating buildings was presented. For the analytical purposes the authors have chosen existing drilled well located in Poczesna and Kamienica Polska communities with average geothermal water temperature at 19,5 °C. For the analytical purposes the authors have chosen existing drilled well located in Poczesna community with average geothermal water temperature at 19,5 °C and 24 m3/h spontaneous outflow volume flux. For existing well the monovalent and the bivalent low temperature geothermal heating system with heat pump was taken into consideration. The operating cost analysis has shown that proposed geothermal heating plant could be an alternative for fossil fuel fired heating plant only in a case of combining heating system with water supply.


Szewczyk K.,Czestochowa University of Technology | Koscielniak A.,Politechniki Czestochowskiej | Kot R.,Instytut Zaawansowanych Technologii Wytwarzania
Przeglad Elektrotechniczny | Year: 2010

In the paper the results of analysis concerning magnetic circuits in the design of driving signals has been presented. In the research FEM Method has been applied. All simulations for computing flux density, forces, and torques have been performed by the program FLUX 2D v 10.1. The simulations have shown a significant influence of the driving current sequence impulses on the cogging torque in the hybrid stepper motor.


Szewczyk K.,Czestochowa University of Technology | Koscielniak A.,Politechniki Czestochowskiej | Kot R.,Instytut Zaawansowanych Technologii Wytwarzania
Przeglad Elektrotechniczny | Year: 2012

In the paper the results of analysis concerning magnetic circuits in the design of driving signals has been presented. In the research FEM Method has been applied. All simulations for computing flux density, forces, and torques have been performed by the program FLUX 2D v 10.1. The simulations have shown a significant influence of the driving current sequence impulses on the cogging torque in the hybrid stepper motor.


Sowinski J.,Politechniki Czestochowskiej | Kwiatkowski M.,Centrum Zastosowan Zaawansowanych Technologii CATA Sp. z o. o
Rynek Energii | Year: 2012

The energy-environment policy of the European Union has influenced on operation of power sector, especially on operation of power plants. The directions of power engineering development are determined by fuels qualities and applying of RES. The power engineering future according to Power Choices Report, Energy Policy of Poland to 2030 and other documents are presented. Power engineering is now in transformation period of the structure of the supply as well as the demand side. As a result some difficulties in forecasting of the longterm balances of power and electric energy have appeared. The scenario analysis methodology of the power generation development is presented.


Mucha M.,Instytutu Zaawansowanych Technologii Energetycznych | Nitkiewicz A.,Politechniki Czestochowskiej | Muskala W.,Politechniki Czestochowskiej | Majchrzak-Kuceba I.,Wicedyrektor Instytutu Zaawansowanych Technologii Energetycznych | Nowak W.,Instytutu Zaawansowanych Technologii Energetycznych
Rynek Energii | Year: 2014

SO2 emissions trading has been introduced in different parts of the world since the 1970s. The paper presents some of the most crucial issues regarding SO2 emissions trading given the example of the international experience of the US and China in this field. It also investigates various problematic issues such as allocation of commercial rights, the effectiveness of regulatory supervision of emission trading market. Furthermore, it discusses some difficulties related to the continuous monitoring of emissions as well as monitoring its impact on the environment. Finally, the paper investigates the, so called, institutional infrastructure of the emissions trading scheme. The bill allowing for emissions trading of sulphur dioxide and nitrogen oxide was accepted in Poland on 02.08.2011. It is supposed to be an economic incentive to reduce emissions of these gases so that Poland would meet commitments in relation to the EU regulations in that matter. Besides our country could significantly benefit economically learning from the huge experience of other countries in relation to the problems of emissions trading.


Article presents results of research of an electromagnetic induction sensor, which is able to detect and locate defects and their existence in tested protective coatings. For some types of signals, conducted a series of measurements by choosing the frequency, amplitude and specifying accuracy of inductive sensor. Thickness of protective layer were determined by accurate instruments known brand Fischer. © 2014, Wydawnictwo SIGMA - N O T Sp. z o.o. All rights reserved.


Zajemska M.,Politechniki Czestochowskiej | Radomiak H.,Politechniki Czestochowskiej
Rynek Energii | Year: 2012

The article takes issues of ecological advantages forecasting of hard coal combustion in oxygenenriched combustion. The concentration of selected combustion products estimated with numerical methods using. The boundary conditions were formulated in base on data received during experimental researches. The analyzed object was a 0.1MW CFB boiler of a small pilot-scale. The numerical simulations was realized with a professional software CHEMKIN-PRO using. The chemical file included 46 compounds and chemical elements and 152 chemical reactions. The calculations were carried out for various gaseous atmospheres. Within a framework of calculations determined 46 combustion products. The detailed analysis contained selected combustion products, namely: CO2, CO, SO2 and NO. The computational simulations proved, that the numerical methods using to forecasting combustion products were an inseparable and an irreplaceable elements of researches. The technical and measurement limitations precluded detailed analysis the complex matters of combustion processes. The obtained calculation results showed that the concentrations of selected combustion products strongly depend on gaseous atmosphere composition.


Borowik L.,Politechniki Czestochowskiej | Ptak P.,Politechniki Czestochowskiej
Przeglad Elektrotechniczny | Year: 2012

Article presents possibility of using multifrequency measuring signal for testing multilayer anticorrosion coatings. Simulation was performed using a measurement system DASYLab. Analysis of possibility of reducing measurement error and presents methods of increasing accuracy and reliability of measurement. Presented solution can be used to control and diagnostic equipment and supporting constructions in electroenergetics.


Zajemska M.,Politechniki Czestochowskiej | Radomiak H.,Politechniki Czestochowskiej
Rynek Energii | Year: 2011

In this article collected the problems of heat production from different energy carriers included the plant wastes. The article contained the review and analysis of fuels market in Poland on economic and ecological aspects. In support on current prices of fuels estimated the production costs of 1GJ energy from chosen carriers. The heat production was connected with emission of pollutants. In this article both the economic and ecological aspects per 1 GJ of heat are discussed. The article presents the results of the chemical composition of combustion process received with the help of professional software, namely CHEMKIN - PRO. The numerical calculation of combustion products can influence on the choice of optimal, ecological technology of heat production for definite users.


Sowinski J.,Politechniki Czestochowskiej
Rynek Energii | Year: 2011

The paper presents the application of real options approach in the decision-making model of investment. The investment of nuclear power plant is analysed. The risk connected with the amount of electricity produced by nuclear power plant, electricity price and cost of electricity (mainly cost of nuclear fuel) is taken into consideration in calculation. The results and conclusions are presented.

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