Browsing by Subject "energetics"

Now showing 1 - 5 of 5

Access status: Open Access ,
Analiza parametrów metody dyskontowej przy ocenie inwestycji na złożu węgla brunatnego
(Wydawnictwa AGH, 2010) Czopek, Kazimierz
This article presents an example of a procedure for economic estimation of exploitation of a new deposit. This paper is concerned with a way of assigning of the scope of a decisional variable in the NPV (Net Present Value) formula. This article also takes into consideration the specific of lignite mining in cash flow calculation, taking into account instead of operating costs, the unit costs of mass exploitation. The discount method was used for the economic estimation of efficiency of exploitation of a new lignite deposits. After taking into account the mentioned lignite specific there are nine parameters in formula of NPV of a different nature; deterministic and probabilistic. These parameters include; investment expenses It, discount rate r, investment evaluation period t, number of years of the investment cycle k, final (residual) value Re, tax rate T, sales price p, sale volume of lignite per year x/pt, yearly volume of a mass exploitation xM, unit cost of mass exploitation. This paper presents also the problem of costs and prices of lignite with reference to the connection between lignite mining and electrical power station in market conditions. Lignite mines can't choose the recipient of its lignite, because this is an electrical power station, with is associated with lignite mines. This article describes the main elements, which influence the costs and prices of lignite. Concerning exploitation cost the deciding factor having influence on its value is cover to lignite deposit factor.
Access status: Restricted ,
Analiza warunków wiatrowych w otoczeniu Laboratorium Edukacyjno-Badawczego w Miękini koło Krzeszowic
(Data obrony: 2013-09-23) Pałka, Grzegorz
Wydział Geologii, Geofizyki i Ochrony Środowiska
Analysis of wind parameters is an important factor in the determination of wind conditions in the area, and thus to determine the suitability of land for investment in wind farms. In this work, the measurement spot is placed in Educational and Research Laboratory of Renewable Energy AGH Miękinia, near Krzeszowice, near Krakow. As a result of the ongoing measurements from 19 February to 30 August 2013, on the basis of the data obtained the wind parameters were calculated in order to select a wind turbine and environmental effects associated with it. . The analysis lead to the conclusion that the wind conditions in the area are unfavorable for conventional wind farm and only using innovative solutions in the form of flying wind turbines may be profitable.
Access status: Open Access ,
Energetyczna perspektywa węgla brunatnego w kontekście Europejskiego Systemu Handlu Emisjami (ETS)
(Wydawnictwa AGH, 2011) Czopek, Kazimierz; Trzaskuś-Żak, Beata
At the moment the production of electricity from lignite is economically very effective. At the same time ecological requirements, especially the European Emissions Trading Scheme (ETS), impose a need to reduce emissions of carbon dioxide, which in the case of using brown coal is an important problem. In the Polish conditions cannot be considered perspective variant of reduction of $CO_{2}$ emissions by eliminating basic fuel, such as hard coal and lignite. There are therefore taken into account two realistic possibilities; using CCS system, which is costly and has not be proven in practice or purchasing emission limits for $CO_{2}$ (the EU ETS system). From the forward-looking point of view in the article, it has been considered the second need. It is also taking in to account at the same time, that the Polish energy security requires planning the exploitation of new lignite deposits. In view of the long investment cycle of mine and power plants construction, electricity production from the new deposits will be possible after the year 2020, after which the EU ETS assumes total liquidation of the freeware limits emissions of $CO_{2}$ and functioning of a free market of those $CO_{2}$ limits. This article analyses the situation of two selected lignite deposits, for which the profitability criterion is the cost of production 1 MWh from these deposits. In the analysis was taken into account the main factors affecting the cost of production energy, such as: the exploitation and sale cost for the power plants, expressed in PLN/Mg and PLN/GJ; the cost structure of production of electricity, including the participation volume in these costs of burned coal; efficiency of energetic blocks, because it depends on how large the level of coal consumption will be to produce energy, i.e. GJ/MWh; quality of the fuel, mainly include caloricity of lignite and its chemical composition; the cost $CO_{2}$ emissions, which not only will depend on price limits on the market, but also on the mentioned quality of lignite and blocks efficiency. The analysis showed that for the analyzed lignite deposits, the production of electricity will be economically attractive due to much more efficiency of energetic blocks and with a smaller lignite consumption and also less $CO_{2}$ emission.
Access status: Open Access ,
Gospodarka elektryczna
(Lwowski Oddział Stowarzyszenia Elektryków Polskich, 1936) Altenberg, Maurycy
Access status: Open Access ,
Wpływ produkcji energii elektrycznej w źródłach opalanych węglem brunatnym na stabilizację ceny energii dla odbiorców końcowych
(Wydawnictwa AGH, 2011) Patrycy, Andrzej
The paper provides estimation analysis of prognosis of electrical energy price increase for ultimate consumers versus energy demand as planned in »National energy policy up to 2030« and scheduled generation investments. Economical preconditions to maintain high rank of brown coal fired sources of electrical energy on energy market.