GABRYŚ H.L.
Polish Electrical Power Engineering 2006.
Attempt to preliminary balance the year 2005
Energetyka 2006, No. 2, p.75, fig.6
Bad prognoses referring to the first two terms of 2005 and concerning electric energy balance did not prove correct and the reason was the economic boom in the second half of the year. Electric energy production and sale to domestic final buyers in the third and fourth terms were distincly bigger than the ones in the first half of the year. Hence the comparison of electric pro- duction and sale in the whole country in 2005 and 2004 shows a very similar result.
ZAJDLER R.
Energy supplies safety - new legal regulations...
Energetyka 2006, No. 2, p. 77
In recent discussions we can observe two main directions of activities which are to ensure a higher safety level to Polish power industry. First it concerns creation of legal regulations securing steadiness of energetic raw materials and electric energy supplies through a better internal compactness of electric power systems. Secondly a strong political and legal liaison should be created that - in case of an energetic threat to one of the countries - would generate some well-defined obligations for the rest of member-states.
SOLIŃSKI J.
The annual World Energy Council conference (WEC) in Colombo in 2005
Energetyka 2006, No. 2, p. 80, fig. 5, tab. 6, bib. 11
In the days 4.-9. of September 2005 in Colombo (Sri Lanca) the annual meeting of the World Energy Council took place. It was organized by the Sri Lanca Department of Energy and its national WEC committee. More than 200 delegates-representatives of the WEC member states - including 4 representatives of the Polish WEC committee 0 took part in the meeting. The annual WEC meetings are held in different parts of the world. Colombo - as the place of the meeting - was chosen with the aim to closer acquaint the participants with the energy situation in South-East Asia i.e. in the area of the densiest population and - excluding Japan, Taiwan, South Korea and Singapore - a low or a very low energy consumption.
GORECKI J., ANDRUSZKIEWICZ A., KUBAS K.
Water flow measurements in big diameter pipelines
Energetyka 2006, No. 2, p. 88, fig. 10, bib. 6
Presented are two continuous water flow measurement methods - carried into effect in one of the Polish power plants - in a 1,6 m diameter pipeline, giving relative uncertainty not exceeding 3% on a 95% confidence level. These are water flow measurements with the help of dynamic pressure averaging flow meters as well as inertial elbow flow meters.
JURDZIAK L.
Negotiations between a brown coal mine and a power plant as a co-operative, two-stage and two-handed non-zero sum game
Energetyka 2006, No. 2, p. 91, fig. 7, tab. 1, bib. 20
Using the bilateral monopoly model (BM) as well as open pit mines optimization methods allows to treat brown coal price negotiations in categories of long term contracts between a coal mine and a power plant as a co-operative, two-stage, non-zero sum game for two players. Taking into account the fact that the improvement of financial results ought to be found in an optimum adjustment of the targetted open pit shape and area to a demand for electric energy (its price) and not in the coal price prolonged negotiations, we come to the conviction that the game should be two-stage. In the first stage the two players should choose an optimum open pit maximalising the cumulative profit of the system while in the second one - after agreeing upon the profit share - the task should be realized by accepting the suitable coal transfer price or using casual payments. Analysis of the game suggests that only both firms vertical integration can secure achieving the optimum solution maximalising total BM profit. The presented procedure of choosing the targetted open pit, maximalizing total BM profits, can be successfully used for an optimum, three-dimensional calculating of the brown coal developed reserves on the basis of economical criteria connected both with the mine and the power plant as well as the energy market on which it operates.
NIKODEM W.
Legal and technological conditions of animal meal incineration in power boilers
Energetyka 2006, No. 2, p. 113, fig. 5
Animal meal as a waste received from the cattle feed industry is a very interesting fuel for power engineers because of its homogeneity, energetic potential comparable with the one of a fine coal and a good charakteristic of biodegradation. At the same time it is a difficult substance being a danger to an environment and people, hence requiring some special treatment. It is subject to detailed control in the national and UE legislation. Presented is the essence of the BSE problem as well as epidemiological dangers. Indicated are legal regulations concerning animal meal treatment and collected are main principles to create a programme of enforcing animal meal as an energetic fuel.
NOWAK W., TARKO R., JAGLARZ A., KOZIOŁ A.
The analysis of operating conditions 110 kV Klikowa - Połaniec and 220 kV Klikowa - Niziny overhad lines in the aspect of their mutual electromagnetic interaction
Energetyka 2006, No. 2, p. 118, fig. 11, tab. 4, bib. 6
Presented is the analysis of capacitive and magnetic interaction between overhead 110 kV and 220 kV lines, being situated close to each other as a result of mounting them on a common bracket construction. Elaborated mathematical model, verified on measurements carried out in a real system, became a basis to define operating conditions in the considered system.
BILLEWICZ K.
Analytical methods of electric energy theft detection
Energetyka 2006, No. 2, p. 124, fig. 1, bib. 4
Methods described are only some of the ones used to detect an illegal power consumption. They are more or less efficient and have various scientific background. However, it seems to be justified to further carrying investigations on the anylysis of energy consumption profile conformity with an averaging profile (for a given buyer, for the specified types of days eg. week-days) with statistic methods applying 3-sigma, balance analysis and the counter state rate of rise, using the method of a roaming totalizing counter. The point is that we should elaborate methods being convincing from one side and efficient and simple in applying from the other.