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Environmentally friendly replacement of mature 200 MW coal-ﬁred power blocks with 2 boilers working on one 500 MW class Steam Turbine Generator (2on1 unit concept)

Grzeszczak J., Grela Ł., Achter T.

Archives of Thermodynamics

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2017

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Vol. 38, no. 4

165–-190

EN

The paper covers problems of the owners of a fleet of long-operated conventional power plants that are going to be decommissioned soon in result of failing to achieve new admissible emissions levels or exceeding pressure elements design lifetime. Energoprojekt-Katowice SA, Siemens AG and Rafako SA presents their joint concept of the solution which is a 2on1 concept – replacing two unit by two ultra-supercritical boilers feeding one turbine. Polish market has been taken as an example.

2

Jak inżynieria ekologiczna przyczyniła się do kontynuowania budowy i rozwoju Elektrowni Opole

Siuta J.

Inżynieria Ekologiczna

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2016

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Nr 49

1--7

PL

Zasady inżynierii ekologicznej zastosowano w modernizacji budowanej Elektrowni Opole, wraz z nowoczesnymi instalacjami ochrony środowiska. Zmodernizowany projekt poddano „Kompleksowej ocenie oddziaływania Elektrowni Opole na środowisko” opracowanej w 1981 r. przez Instytut Ochrony Środowiska. Główne treści oceny zreferowano i przedyskutowano na krajowym sympozjum naukowym z udziałem społeczności opolskiej, zorganizowanej przez Polskie Towarzystwo Inżynierii Ekologicznej 5 i 6 czerwca 1992 r. Głównym celem sympozjum było wyspecyfikowanie i w miarę wszechstronne przeanalizowanie ekologicznych uwarunkowań projektowania, budowę i eksploatowania elektrowni węglowych. Celem wtórnym, ale pierwszoplanowym dla aglomeracji opolskiej było przeanalizowanie wieloczynnikowego wpływu budowy i eksploatacji Elektrowni na przyrodnicze i społeczne środowisko. Przyznanie Elektrowni „Opole” S.A certyfikatu zgodności systemu zarządzania środowiskowego z normą ISO 14001 nadanego przez British Standards Institution, dowiodło zasadności kontynuowania budowy zakładu energetycznego spełniającego wymogi 21 wieku. Zaawansowana budowa dwóch kolejnych bloków o łącznej mocy 1800 MW w Elektrowni Opole S.A. dowodzi merytorycznej zasadności i skuteczności seminarium z roku 1992.

EN

Principles of ecological engineering were applied for upgrading the Opole Power Plant under construction, complete with modern installation to protect the environment. The modernized project was a subject of „Integrated environmental impact assessment of the Opole Power Plant” developed by the Institute of Environmental Protection in 1981. The main issues covered by the impact assessment were presented and discussed at the national scientific conference attended, among others, by the representatives of local community from Opole. The conference was organized by the Polish Society of Ecological Engineering on June 5 and 6, 1992. The main aim of the conference was to identify and deliver as broad as possible analysis of environmental conditions for designing, building and operating coal fired power plants. A secondary goal, though of main concern for the Opole agglomeration, was to evaluate many-sided environmental risks resulting from the construction and operation of the Power Plant. The feasibility of continuing the construction of a power generating facility that meets the requirements of the 21st century was demonstrated by the fact that the Opole Power Plant S.A. was awarded the ISO 14001 – Environmental Management System certificate by the British Standards Institution. Advanced construction of the two consecutive blocks of a combined power of 1800 MW in the Opole Power Plant substantiates the validity and effectiveness of the conference organized in 1992.

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Comparative analysis of optimisation methods applied to thermal cycle of a coal fired power plant

Kowalczyk Ł., Elsner W.

Archives of Thermodynamics

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2013

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Vol. 34, no. 4

175--186

EN

The paper presents a thermodynamic optimization of 900 MW power unit for ultra-supercritical parameters, modified according to AD700 concept. The aim of the study was to verify two optimisation methods, i.e., the finding the minimum of a constrained nonlinear multivariable function (fmincon) and the Nelder-Mead method with their own constrain functions. The analysis was carried out using IPSEpro software combined with MAT-LAB, where gross power generation efficiency was chosen as the objective function. In comparison with the Nelder-Mead method it was shown that using fmincon function gives reasonable results and a significant reduction of computational time. Unfortunately, with the increased number of decision parameters, the benefit measured by the increase in efficiency is becoming smaller. An important drawback of fmincon method is also a lack of repeatability by using different starting points. The obtained results led to the conclusion, that the Nelder-Mead method is a better tool for optimisation of thermal cycles with a high degree of complexity like the coal-fired power unit.