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Study on the Influence of Roadways on Land Plots according to the Results of Monetary Evaluation

100%

Shulgan R. , Yanchuk O. , Pakharenko O. , Pryshchepa A.

tom Vol. 15, no. 3

5--21

The paper examines the impact of highways of urban significance on surrounding areas. The authors substantiated the size of the road effect zone. In order to determine the quantitative extent of the impact of highways on surrounding areas, the scholars applied the data regarding the selling prices of land plots with various designated purpose, i.e. the estimated money value of land is the indicator of determining the road effect on surrounding areas. Since a great number of factors affects the value of these land plots, in order to determine the road effect for highways, the authors developed economic and statistical models for expert value of land plots with various designated purpose using the method of multiple regression analysis. After substituting different values of distances to a highway within the road effect zone in the model, the researchers established the patterns of change in the value of land plots with various designated purpose and calculated the adjustment factors that can be used in the pecuniary valuation of land plots. The value of such coefficients for residential construction land is 0.85–1.00; for commercial land it is 1.00–1.17; and for industrial land it is 1.00–1.01.The paper examines the impact of highways of urban significance on surrounding areas. The authors substantiated the size of the road effect zone. In order to determine the quantitative extent of the impact of highways on surrounding areas, the scholars applied the data regarding the selling prices of land plots with various designated purpose, i.e. the estimated money value of land is the indicator of determining the road effect on surrounding areas. Since a great number of factors affects the value of these land plots, in order to determine the road effect for highways, the authors developed economic and statistical models for expert value of land plots with various designated purpose using the method of multiple regression analysis. After substituting different values of distances to a highway within the road effect zone in the model, the researchers established the patterns of change in the value of land plots with various designated purpose and calculated the adjustment factors that can be used in the pecuniary valuation of land plots. The value of such coefficients for residential construction land is 0.85–1.00; for commercial land it is 1.00–1.17; and for industrial land it is 1.00–1.01.

Ekonomiczne efekty stosowania współspalania biomasy z węglem kamiennym

100%

Gad S. , Pawlak A.

Przegląd Elektrotechniczny

2011

tom R. 87, nr 2

258-262

Opracowano procedurę obliczeń umożliwiającą ocenę bilansu ekonomicznego współspalanej mieszanki. Stworzony w tym celu model matematyczny pozwolił na płynną regulację najważniejszymi parametrami, takimi jak wartości opałowe i ceny paliw, procentowy udział masowy biomasy, zapotrzebowanie na energię i sprawność elektrowni. Zaproponowano symulację dla różnych przypadków.

The procedure of calculation which allowed an assessment of the economic balance of co-firing mixture is discussed in the paper. Created for this purpose a mathematical model allowed for continuous adjustment of key parameters such as calorific value and fuel prices, the percentage of the mass of biomass, energy demand and efficiency of power station. Simulation is proposed for different cases.

OPF including TCSC devices using FACTS program software

80%

Lakdja F. , Gherbi F. Z. , Zidi S. A.

Przegląd Elektrotechniczny

2012

tom R. 88, nr 11a

161-165

The solutions FACTS (Flexible Alternating Current Transmission Systems) allows network operators to increase the capacity of theexisting stock, while maintaining or improving the operating margins necessary for grid stability. This increases the amount of energy delivered toload centers with minimal impact on the environment, with projects much faster to implement and reduced capital spending compared to othersolutions. The objective in this paper is to evaluate and compare the values in the cost of power generation with and without TCSC transit controller(Thyristor Controlled Series Capacitor). In addition, we present a new idea of presenting software that we developed and appointed: FACTSprogrammer.

W publikacji oszacowano i porównano koszty wytwarzania energii elektrycznej w sieci z urządzeniem typu FACTS (ang. Flexible AC Transmission System) opartym na pojemnościowym kompensatorze mocy (ang. Thyristor Controlled Series Capacitor) i bez niego. Przedstawiono także opracowane nowe oprogramowanie o nazwie FACTS Programmer.