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The nuclear energy has already widely behaved the type of usage in nowadays, however the output radio wastes of the usage process of the nuclear energy, now saves in Taitung (the radio material of the usage mainly come from an electricity nuclear power station, hospital etc.), and still revolves now in it currently three nuclear power station, face the radio wastes that increase continuously every year, force The Taiwan Power Company to actively look for the final treatment field, to expect to thoroughly resolve to check the waste treatment problem. This research addressed the environment justice by investigation about "the radio wastes saving station in lanyu". establishes in a process, the government parties concerned decision is the way and local people to cognize the difference of top, and the government parties concerned and local people avoids the position of the facilities to the nimby etc., the way that then look for to relax through the detection of problem, reach the most suitable an electricity " the radio wastes saving station " constitution policy to turn with the period. The final treatment project of the low radio wastes relaxs current " the radio wastes saving station in lanyu " is an important public policy, and the urgent performance point conduct and actions to have: (1)The government and The Taiwan Power Company should open and publish the related data of "lanyu plan" of that year, discover history true facts, to dissolve the rumor, worry, and opposition. Depend on the final treatment facilities address constitution regulation of the low radio wastes, actively operate by law. (2)In order to win the people trust, rebuilding the government and set The Taiwan Power Company¡¦s public trust, and responding to make policy the performance implement, even should establish more thoughtful of related ordinance standard with the result that decision the performance ability transparency, effectively also fair implementation environment influence valuation etc.. (3)Establish the mission responsible association, in order to communication, coordination of the professional high class manages the single unit mechanism, simplifying the process. Also effectively dissolve people's worry in uncertainty, determining the government policy position, setting up the action government image of the effect and professional working talent.

Cooling tower plume rise, dilution and dispersion is investigated using a numerical model. Both single and double sources are considered. The main aim of the investigation is concerned with comparison of the computational results to existing wind tunnel experimental data as well as simple empirical rise height formula. Analysis of the interaction of adjacent sources, and subsequent rise augmentation compared to that of a single source, is a central theme of the work. A full-scale hybrid mechanical cooling tower is modelled as a surface mounted cuboid block 20 m high with an internal development duct of 10 m diameter. Both jet and moderately buoyant plume type sources are studied. Two exit velocity ratios are also considered. An oncoming atmospheric boundary is modelled with an associated logarithmic velocity profile and profiles of turbulence kinetic energy and length scale. Two double source orientations, tandem and side-by-side with respect to the oncoming cross wind, are studied. Physical symmetry is utilised and so only half of the domain is modelled. Both the small-scale (wind tunnel) and full-scale were modelled. The small-scale work used combinations of a low Reynolds number k-e turbulence model and both hybrid and QUICK discretisation schemes. The high Reynolds numbers encountered in the fullscale allowed the use of a number of different turbulence models, namely the standard k-e model, the RNG k-e model and a differential flux model, combined again with the hybrid and QUICK discretisation schemes. The results of a number of sensitivity tests showed that plume rise in this case was not sensitive to the turbulence model constant C3 or to source turbulence levels. A decrease in the turbulent Prandtl number led to a marked increase in the turbulent diffusion of the thermal plume. Horizontal plume spreading was underpredicted in both small and full-scales compared to the experimental data. Plume rise and dilution was, in the majority of cases, predicted accurately compared to both the experimental data and also to rise heights given by simple empirical relationships. Generally, the choice of discretisation scheme was a more important factor than choice of turbulence model. Interaction of side-by-side plumes was dominated by the interaction of the rotating vortex pairs within the plumes. A tandem source arrangement led to early merging and efficient rise enhancement. Merging into a single type plume occurred sooner with an decrease in exit velocity ratio, R.

Das „CO2-freie“ Kraftwerk ist in den Medien ein viel strapaziertes Schlagwort. Dieser Beitrag zeigt, welche Anstrengungen derzeit unternommen werden, um das Hauptreaktionsprodukt der Braunkohlenverbrennung, das Kohlendioxid, nicht in die Atmosphäre abzugeben, sondern es für eine unterirdische Lagerung aufzubereiten, welche Strategien dabei verfolgt und Technologien bemüht werden müssen und dass „CO2-frei“ noch lange nicht CO2-frei ist. Erforschen, Beherrschen und Gestalten von Verbrennungsvorgängen mit reinem Sauerstoff, Nachempfinden mittels Simulation, Behandlung und Reinigung der dabei entstandenen Rauchgase und die Zusammenführung dieser Teilschritte zu einer stimmigen, effektiven Prozesskette sind Aufgaben, die es unter der Maßgabe der Sicherung eines bezahlbaren Strompreises zu lösen gilt. / The ‘CO2-free’ power station is a frequently encountered keyword in the media. This paper highlights the efforts which are being undertaken at TU Dresden to avoid carbon dioxide emissions into the atmosphere and, instead, to store it safely under ground. The handling of combustion with pure oxygen, simulation of the processes and cleaning of the exhaust gases are steps which need to be linked into a functional process chain for further evaluation. It is shown that this research is necessary in order to keep ‘CO2-free’ electricity affordable.

Die absorptive Gasreinigung ist eine gute Möglichkeit, um den CO2-Ausstoß von Kraftwerken zu senken. In diesem Beitrag werden das neue Waschmittel GenosorbN und die Ergebnisse erster damit durchgeführter Versuchsreihen vorgestellt. Es wird diskutiert, welche CO2- Abscheiderate zukünftig angestrebt werden sollte. / Absorptive gas purification is one good possibility to reduce the CO2 output of a power station. This contribution presents the new absorbent GenosorbN, with the results of initial experimental series. The degree of elimination to be targeted for the future is discussed.

Thesis (M. Sc.)--University of Hong Kong, 1996. / Includes bibliographical references.

Thesis (M. Sc.)--University of Hong Kong, 1982.

Brangstant iškastiniam kurui, vėjo elektrinių ir jų parkų statymas ir prijungimas prie elektros tinklų šiuo metu darosi labai aktuali tema. Lietuvoje vis plačiau, ne tik pajūryje, yra statomos ir prijungiamos vėjo elektrinės ir jų parkai. Mano darbo tikslas yra ištirti vėjo elektrinių parko Baltijos jūroje Lietuvos respublikos teritorijoje, prijungimo prie elektros tinklų galimybes, kas įtakoja jų prijungimo galimybes. Darbe ištirta šiuo metu aktuali Baltijos jūros vėjo elektrinių parko statybos galimybė. Parinktoje teritorijoje suprojektuotas vėjo elektrinių parko išdėstymas, numatyta prijungimo prie esamų perdavimo tinklų prijungimo galimybė.. Palyginti parkų išorinio prijungimo schemų variantai, bei išnagrinėtos jūros vėjo energetikos prijungimo prie krante esančių elektros tinklų problemos. Numatytos tolimesnių tyrimų kryptys. / Together with the increasing price of the fossil fuel, construction of wind power-stations and their parks as well as their connection to electrical networks has become a relevant topic. In Lithuania, wind power-stations and their parks have been constructed and connected not only in the seaside. The aim of my Work is to analyze possibilities of the wind power-stations’ park in the Baltic sea in the territory of the Republic of Lithuania, their connection to electrical networks and influencing factors. The Work analyses the relevant possibility of constructing the Baltic park of the sea wind power-stations. The selected theory projected the arrangement of the park of wind power-stations; the possibility of connection to the existing transmission networks was defined. Variants of external connection schemes have been compared and problems of connecting the sea wind energetic to electrical networks in the coastline have been analyzed. Further Survey aspects have been projected.

The use of generator circuit breakers in power stations was investigated and evaluated. A feasibility study to determine if the additional capital cost required, when using a generator circuit breaker in a power station could be justified by the advantages it provides. The background to the study is provided through a technology and literature survey. Included in the technology review and the literature study is information on interruption mediums, the historic developments of circuit breakers and generator circuit breaker application theory. This data was used to determine the practicality of using a specific interruption medium within a generator circuit breaker application. The requirements of generator circuit breakers were determined and used to evaluate the interruption mediums in question. To ensure practical results, commonly used layouts were used to determine the effect of using a generator circuit breaker on the reliability, availability and the mean time to repair of a power station electrical distribution layout. Furthermore, the effect of the protection on the generator and generator transformer was evaluated. It was found that increased selectivity of the protection system by using a generator circuit breaker limits the extent of equipment damage in case of failure. Practical layouts were used to determine the effect on reliability. The analysis was conducted using assumed values of operational costs to determine the cost incurred through the change in reliability of the power station. By adding a generator circuit breaker, the station transformer and associated equipment is regarded as back-up or redundant equipment. This increases the reliability of the power station dramatically and limits the risk of income lost due to failures. The full evaluation included the estimation of the capital investment costs and the impact that the additional cost has on the operational requirements of a power station. The study determined that the capital cost required to use a generator circuit breaker results in no additional income for a power station. Through the increased protection, higher availability and the possible omission of power station ancillary equipment, the use of generator circuit breakers will result in more power being delivered and more income generated by a power station. The study proved that the generator circuit breaker is a critical part of a power station layout and is a necessary capital requirement to ensure the sustainability of the power station. / Thesis (M.Ing. (Electrical and Electronic Engineering))--North-West University, Potchefstroom Campus, 2010.