Abstracts - VGB PowerTech Journal 8/2004

The Electricity Sector in the Baltic States Estonia, Latvia and Lithuania before the Accession to the EU

H. Bauer, J. Kraemer and Gunta Slitha

The accession of Estonia, Latvia and Lithuania to the EU sets the target to integrate electricity sectors of these Baltic States into a common electricity sector of the EU. The integration of the electricity sectors is one of the most important economic and technical problems. For solving these problems, large-scale financing investments are needed, as well as technical and organisational efforts from the three Baltic States and from the EU.

Content and Course of an Extensive Main Inspection of a 500 MW Lignite-Fired Unit

G. Weiß, G.-P. Smurawski and G. Wierick

In the last year, extensive inspection work was carried out at the 500 MW units of Jänschwalde Power Plant. It included those measures that are common to conventional power plant units based on legal guidelines, such as test programme, compression tests and measures directed to increasing availability and safety. The success confirms the right approach. It is a signpost for further projects to be realised in the lignite-fired power plants of Vattenfall Europe Generation.

Risk Based Maintenance for the Petrochemical Industry

J. Hofmann

Risk based maintenance (RBM) has by far overcome the phase of methodology development. RBM in its present form is the result of a development of DNV under the sponsorship of the American Petroleum Institute (API) for the petrochemical industry in the previous decade. In the meantime it has become an official API standard (API 581) and thus a recommendation for all API member companies. Within this industrial branch the actual benefit of RBM is even more obvious because different risk types have to be taken into account.

Development and Application of a New Software Tool for the Basic Design of Fluegas Cleaning Processes

P. Schausberger, Andrea Wieland, H. Reissner and A. Friedl

The development of a new software tool designed for improvement of the basic engineering of fluegas cleaning processes and its specific application is presented. The tool is based on the commercially available simulation tool IPSEpro originating from the field of power engineering. Here, a modelling environment enables the enhancement of the existing content: substances, streams and unit operations to be included are structured in an object-oriented manner, the according steady mass and heat balances are setup to yield a system of equations to be solved simultaneously.

Practical Experiences with Animal Fat as Added Fuel in Ingolstadt Power Station

C.N. Gerischer

In 2001 the market was overflowing with animal fat due to the discussion about the Bovine Spongiform Encephalopathy disease. One solution was the use as additional fuel in power plants. The fundamental technical requirements existed in Ingolstadt Power Station. Economical considerations led to the decision to test animal fat as added fuel. The main experiences are presented and discussed.

Operational Experience with an Innovative Gas Turbine Inlet Air-Cooling System

A. Prelipceanu and D. Bies

Gas turbines are penalized by the inversely proportional effect of the ambient temperature on their power output and efficiency. In the scope of the research and development project "Cooled Gas Turbine", funded by the European Commission, experimental investigations on an innovative air-cooling system, utilizing absorption refrigeration, were conducted. The operational experience with this technology as well as the possible fields of application are discussed.

Transposition of the European Environmental Noise Directive

K.P. Irmer

On 18 July 2002, the European Parliament and the Council enacted the Directive 2002/49/EC relating to the assessment and management of environmental noise. The Directive aims at defining a common approach intended to avoid, prevent or reduce the harmful effects, including annoyance, due to exposure to environmental noise and to preserve environmental noise quality where it is good. The Directive has to be transposed in national law on 18 July 2004 the latest.

Ordinance on Plant Safety (BetrSichV) Classification of the Plant and Operational Safety within the Legal System

H. Mattes

In the recent past the field of plant and operational safety has been coined by deep changes due to European legislation and the resulting consequences for national regulations and codes as well as due to technical progress. Thus, the classification of the Ordinance on Plant Safety also has to be considered in connection with the European legal system. For the necessary new classification and adjustment of the operational and plant law, the "ordinance on simplification of legislation in the field of safety and health protection upon the use of operating media during work, the safety in plants of facilities to be monitored and the organisation of operational labour protection" was issued.

Concept for a lignite-fired power plant based on the optimized Oxyfuel process with CO' recovery

St. Hellfritsch, P.G. Gilli and N. Jentsch

The so called Oxyfuel process (O₂/CO₂ combustion process) with CO₂ separation gives an opportunity to produce electric power from carbon-rich fuels by means of a rather simple process scheme and largely available technology without emitting CO₂ to the atmosphere. As already proved by previous studies, it is possible both to retrofit existing coal power plants and to apply the technology to new power plant designs. In co-operation with Vattenfall Europe Generation, an optimized Oxyfuel process layout for a 920 MW lignite-fired power plant with 98 % CO₂ separation rate was developed at the Dresden University of Technology. The optimized Oxyfuel plant scheme very is presented
together with selected optimization approaches. An outlook is given to the future development.

Twenty-Years of Successful Applicationof On-load Detonation-wave Technique for Cleaning Gas-side Boiler Surfaces in a Coal-fired Power Plant

I. Smajevic and K. Hanjalic:

The successful two-decades-long experience and some recent developments are discussed about the application of detonation-wave technique for on-load ash removal from the gas-side surfaces in steam boilers in the thermal power plant "Kakanj" in Bosnia and Herzegovina. The detonation soot-blower (DSB) technique, developed and tested first in a laboratory-scale installation, has been in operation since 1983 as automatic daily cleaning routine in two boilers fired by pulverized local brown coal, each of 340 t/h nominal steam production and driving each one 110 MWel steam turbine.

Claims experience in connection with wind power plants

P. Bollmann und M. Jelting

Since the introduction of state subsidies to promote wind power generation at the end of the 80ies, more than 15,000 wind power plants have been constructed in Germany. The rapid development of wind power generation has caused new technical problems which need to be considered and dealt with. The introduction of condition monitoring systems (CMS) in wind power plants was improved. Allianz has extended the revision clause usually applied in connection with traditional power plants to cover wind power plants as well. Based on a report on requirements for plant condition monitoring systems by Allianz Center of Technology (ACT) commissioned by Allianz Insurance, most of the available systems have been certified by the ACT.