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Sadlowski ; 31 Improvement of the N-efficiency and environmental compatibility of fermentation residues by means of nitrification antagonists K. Brenner ; 32 Nutrient uptake of mice and soil respiration after input of fermentation residues in field trial S. Bachmann ; 33 The way of the sugar beet to the economic biogas plant - a business-driven approach B.

Peters ; 34 Biogas production from beta beets dependent on the type R. Boettcher ; 35 Production of the streaky silphium perfoliatum as well as grain-type plants as an alternative for enhanced contrations of mice J. Peters ; 36 Support of the operation of an agricultural biogas plants with dynamic simulation I. Seick ; 37 Utilization of substrates in biogas plants with and without gastight vessels for fermentation residues F. Weissbach ; 38 Emissions of laughing gas in the cultivation of energy crops by means of fermentation residues S.

Fiedler ; 39 The GHG balance of modern bio natural gas plants using the bio natural gas plant Einbeck as an example C. Bonsen ; 40 Climate gas balances of biogas and their significance D. Dressler ; 41 Formation of foam in biogas plants and its combat L. Moeller ; 42 Optimization of the flowability of the content of fermenters in biogas plants by means of enzymes T.

Fritz ; 43 Dry fermentation - New findings for an optimal process management G. Langhans ; 44 New possibilities for the introduction of power generation by means of biogas in regional bio energy concepts by means of the implementation of the flexibility premium by means of the EEG U.

Holzhammer ; 45 Concepts and pilot projects for innovative procedures for the supply of biomethane D. Biogas upgrading to biomethane. Proceedings; Biogasaufbereitung zu Biomethan. Within the 6th Hanauer Dialogue 'Biogas upgrading to biomethane' at 21st February, , the following lectures were held: Which role will play the upgrading of biogas, and which legal boundary conditions are created by the Federal Government?

Uwe Holzhammer ; c Future strategy: The case of biogas plant Bruck a. Alternatives to biogas upgrading and grid injection Michael Beil, Bernd Krautkremer ; n Feeding of exchange gas. Feeding of biogas into the natural gas distribution system Fachagentur Nachwachsende Rohstoffe. Biomass energy not only contributes to the energy transition, but also for climate and resource protection. The main topics of the conference are: Alternative solid bioenergy sources; Optimizing the use of heat; Prospects for biofuels; Emission reduction through use of biofuels; Alternative biomass for biogas; Optimization and adjustment in the biogas sector; Flexibility of biogas plants; New uses of bioenergy.

Die Schwerpunktthemen der Konferenz sind: The seven main focus of the bioenergy forum were: Political regulation and its consequences; 2.

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Flexible energy supply; 3. Biorefineries for the use of residues from bioenergy production; 4. Process optimization biogas; 5. Alternative substrates for biogas production; 6. Cross-sectoral bioenergy concept; 7. Five lectures are separately analyzed for this database. Politische Regulierung und deren Folgen; 2. Bioraffinerie zur Nutzung von Reststoffen der Bioenergiegewinnung; 4. Alternative Substrate zur Biogasgewinnung; 6. Sektoruebergreifende regionale Bioenergiekonzept; und 7.

Fuenf Vortraege wurden fuer diese Datenbank separat aufgenommen. Abandoned polluted areas symposium The reduction of the demand on space for settlement and traffic as well as the improvement of cities and rural settlement structures are the most important key questions and challenges of current environmental policy. An intelligent utilisation of the limited resource space is not only related with positive effects of soil protection Protection of the ''Green Field''.

Measures for estate development on industrial, business and settlement fallow grounds contribute to support a long-lasting city development as well to an economic development. In order to improve the re-integration of pre-used land holdings into the real estate business appropriate legal, planning, financial, tax and incentive instruments are required as well as supplemental measures and activity fields like tradable space certification rights, model projects, research incentives, an optimised space management and improved public work.

In the frame of this symposium experts report on their experience in the field of space reactivation of large industrial sites and allow for a discussion of their risks, chances and the resulting challenges. A main focus of the conference programme will be the affects of the present European legal guidelines on water and soil protection.

Energy and emissions trading. Proceedings; Energie und Klimawandel. Within the 14th Muensteraner Foreign Trade legislation conference at 15th and 16th October, in Muenster Federal Republic of Germany , the following lectures were held: Kachel ; 3 Liberalization and regulation of energy services at multilateral and bilateral level Christian Pitschas ; 4 Legal protection for foreign direct investigations in the energy sector Richard Kreindler ; 5 Energy cartels in the light of the WTO law Joerg Philipp Terhechte ; 6 Subsidisation of renewable energy in the area of attention between WTO and EU subsidy law Martin Lukas ; 7 Legal aspects of pipeline through the Baltic Sea Barbara Kaech ; 8 Sustainability standards and their compatibility with the WTO law Lorenz Franken ; 9 Economic instruments between Kyoto and Kopenhagen - Quo vadis climate protection?

Benjamin Goeerlach ; 10 Emissions rights trading with developing countries Peter Ebsen ; 11 Legal aspects of the European emissions rights trading Stefan Altenschmidt. Computer aided analysis and design of industrial energy systems; Rechnergestuetzte Analyse und Konzeption industrieller Energiesysteme. In this dissertation the concept and implementation of a software system supporting the analysis and the design of industrial energy systems is presented. As a basis, a software framework was designed supplying a domain specific object model allowing the description of energy systems as well as the energy auditing projects performed with the software.

Moreover, a set of graphical and textual editors needed to model the examined systems is part of the framework. On the other hand, the professional methods for analysis, assessment and optimization of energy systems are implemented in modules integrated into the system via a plug-in interface. The object model whose definition was based on a meta model approach allows the description of network like structures typical to energy systems.

In order to keep track of the different work steps performed during an analysis project, these steps are reflected in the object model as ''method applications'' using a tree as the basic structure of a project. In order to allow the compatibility of information a set of conventions for the evaluation of energy flows and system balances was introduced. Moreover, all data elements used in modules or model components are derived from a central database guaranteeing a consistent usage of terms, descriptions, validity ranges and data types. The single professional modules like simulators or optimization methods access the object model via an appropriate software interface.

Moreover, they make use of the framework's user interface engine by delivering a generic description of dialog screens and result reports. As all modules share the same set of objects modelling the components of the energy system surveyed, the flow of information from module to module can be designed virtually seamless.

Compared to a number of stand-alone solutions, this integrated design approach has the advantage that by combining a set of specialized methods an overall solution for complex engineering tasks can be created. The modules implemented up to now form a solution for the computational support of industrial energy audits.

Nevertheless, the framework could be used as a basis for other fields of engineering. As an example for a complex module, a simulator for the calculation of industrial energy supply systems is presented. This module allows modelling of supply systems with low effort in order to calculate the annual costs, system efficiency and emissions. Besides technical components for the conversion, storage and transport of energy, other decisive elements like energy tariffs can be modelled.

As input for the simulation, time series of the different target energy demands are needed. As detailed design data of the components is usually not available, the model parameters are typically restricted to the data found in technical data sheets. Moreover, typical sample times of energy demand time series will be 15 minutes or higher, so that dynamic effects below this time interval are neglected. For the purpose of analysis it turns out to be advantageous to assess a supply system without the influences of the concrete system control strategy, which means to run the simulation under the regime of an optimal control strategy.

Even in cases where the control strategy is to be taken into account, this approach allows a simpler modelling of the system control as aspects with little impact on the system efficiency can be left to the optimizer instead of formulating appropriate rules. In order to allow an operation optimization of machines whose efficiency depends on temperatures in addition to the part load state e. In order to achieve a method most robust towards the large variety of systems structures to be handled, a combination of evolutionary algorithms and mixed integer linear programming was chosen. In order to create supply system models, component models can be chosen from a template library and combined by connecting their external interfaces with bonds representing an energy or medium flow of a certain type.

Each model component may contain subsystems leading to a hierarchical model structure. To define the behaviour of the components, a model description language adapted to the mathematical model was developed. The application of the system is demonstrated in an example of use. Transformation research for a sustainable energy system. Contributions; Transformationsforschung fuer ein nachhaltiges Energiesystem.

Within the annual meeting of the Renewable Energy Research Association Berlin, Federal Republic of Germany from 12th to 13th October , the following lectures were held: Schuette ; 2 Open questions on the transformation of energy systems E. Weber ; 3 System analysis on the transformation of energy systems up to J.

Schmid ; 4 Economic aspects: Chances, markets and workplaces F. Staiss ; 5 Perspectives for an interplay of energy efficiency and renewable energy resources as well as their implementation in the energy system A. Bett ; 6 New accents of research promotion for a more rapid development of renewable energy sources K. Sadermann ; 9 How can research and politics promote the system transformation M. Hustedt ; 10 The energy system of tomorrow - Strategies and research for the transformation of high amounts of renewable energy resources W. Duerrschmidt ; 11 Long-term strategies for the development of renewable energies in Germany J.

Nitsch ; 12 Development of storage capacities for an efficient power generation by renewable energy resources in Germany and Europe by Y. Scholz ; 13 Prognoses of temporal and spatial variability of renewable energy resources B. Lange ; 14 Smart Grids - Transformation of our electrical energy supply G. Ebert ; 15 Model regions for intelligently networked energy systems; 16 Cities and concepts of neighbourhood - model cities D. Schmidt ; 17 Transformation of the German power system to a decentral regenerative economy U.

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Leprich ; 18 Alteration of the general conditions for new incentive models, heat acts, restoration of buildings M. Schmidt ; 19 Acceptance and participation research on energy sustainability P. Schweizer-Ries ; 20 The value of interactive analyses of energy potential for citizens using the project 'Renewable come' as an example M. Klaerle ; 21 Changing world - the 'Great transformation' H. Electromobility - impact on the energy sector; Elektromobilitaet - Auswirkungen auf das Energiesystem. The German Federal Government wants to see electromobiles make a substantial contribution to sustainable mobility and to reducing fossil fuel consumption.

Its scenario for the market entry of the electromobile envisages a market penetration of one million vehicles by the year and of 5 million by the year In order to answer these questions one first has to look at potential energy and load requirements on power plants and electricity grids. Institut fuer Kernenergetik und Energiesysteme. Report of the years to Over the years, the research activities of the IKE have developed beyond the specifically nuclear framework and cover today the fields of system and plant engineering as well as thermofluid dynamics.


Reactor physics and applied radiation physics, nuclear installations and nuclear power plants, reactor safety and environment technology, plant safety, heating and room air technology, solar thermal installations as well as hydrogen technology are priority topics. The Institute is concerned with basic research and problems of applied research. Bidirectional decentralized energy management in the low voltage grid based on centralized and decentralized informations; Bidirektionales dezentrales Energiemanagement im Niederspannungsnetz auf Basis zentraler und dezentraler Informationen.

Decentralized electrical generation units DG units are connected to the network in Europe with an increasing number and generation capacity. This includes renewable energy sources with fluctuating generation characteristics as well as more controllable generation from biomass and co-generation. Severe problems with grid operation are expected among experts when the share of DG without controllability exceeds approx. This strategy will include energy management with controllable generators as well as controllable loads.

Today, however, this potential in most cases cannot be activated due to lack of standards and missing economical incentives. In the concept presented in this work the grid connection point is extended by intelligent components to a Bidirectional Energy Management Interface BEMI. This allows a technically efficienct design of an energy management system and avoids fundamental organizational changes to the current grid regime.

The concept of decentralized decision based on information from a central control station covers the requirements of the system operators as well as the local customer. Using the same concept the management of a pool of devices, containing BEMI-equipped households as well as other decentralized resources is possible.

This is expected to bring additional benefits for both system operators and local customers. Therefore an approach for upscaling the existing BEMI technology is outlined as an outlook. With their high efficiency and modular structure, fuel cells are an attractive option for decentral power supply. An important component of decentral power supply systems is the power-electronic control element for supply of electric power from the fuel cell to the three-phase electricity grid. Eine wichtige Komponente des dezentralen Energieversorgungssystems sind die leistungselektronischen Stellglieder fuer die Einspeisung der elektrischen Energie aus der Brennstoffzelle in das dreiphasige Netz.

Selective decentralized underfrequency protection. Load shedding depending on underfrequency; Selektiver dezentraler Unterfrequenzschutz. In the case of major disruptions, the underfrequency depending load shedding serves to restore the performance balance between generation and consumption. If a switching off of electrical consumers due to an actual underfrequency event is required, individual grid areas are separated from the residual power grid by means of a frequency relay.

Normally, the disconnection from the mains takes place at the medium voltage level of the kV transformer. In addition to consumers, also decentralized energy transformation plants are disconnected. Thus, the performance deficit will be enhanced, if necessary. Thus, a procedure considering the actual load situation and feed-in situation is absolutely essential in the future. The Institute of Energy Systems, Energy Efficiency and Energy Economics at the Dortmund Technical University Dortmund, Federal Republic of Germany develops which realizes a future-oriented selective underfrequency protection by means of smart metering systems.

Future market decentralized water purification and rain water management; Zukunftsmarkt Dezentrale Wasseraufbereitung und Regenwassermanagement. With regard to forthcoming climate and demographic changes, semi- and decentralised concepts of water supply and sewage disposal infrastructure are of crucial importance as they are more able to adapt to yet uncertain challenges than the established centrally structured infrastructure.

Pivotal elements of such more decentralised infrastructures are the conditioning and re-use of rain and grey water. In this context, rainwater management is of special relevance as it reduces the impact of extreme precipitation on the environment and, at the same time, enables the replenishment of groundwater reservoirs. Another key technology for up-grading of all sorts of raw and wastewater is membrane filtration, which shows its superior potential whenever the conventional technology reaches its limits.

With regard to technical capability and performance in foreign trade, the USA, Canada, United Kingdom and the Netherlands are the strongest competitors of the German water industry. Another important country is France, which, due to its colonial past and its high degree of privatisation, hosts the largest global players - Veolia and Suez.

Compared with its competitors, the strength of the German water sector is based on the wide variety of innovative, small and medium-sized companies with strong international trade relations offsetting the power of big players by a high degree of flexibility. By contrast, the main weakness of the German water sector is the small-scale structure and local economic orientation of basically public owned utilities, which tends to hinder the formation of powerful water technology companies and the respective networks.

While current exports of water-related technology are mainly focussed on central infrastructures, decentralised water supply and sewage disposal are increasingly relevant in Germany today. They may do so even more, if the development and diffusion of the latter technologies are enhanced by demand-oriented innovation policy and the intensified competition between the operators of waste water treatment plants e.

Additionally, small and medium-sized firms should be supported in establishing contacts and raising demonstration projects in the target countries of their export activities. The higher risk associated with their engagement in developing and threshold countries should be offset by means of guaranteed loans.

On the part of the exporting firms, the lack of infrastructure and financial capacity in those target countries with the most pressing need for technical improvements implies the adoption of better adapted technologies that also take into account the institutional and cultural circumstances in the respective countries.

Kooperationsvorhaben "Nachhaltiges Biogas am Niederrhein": Biogaseinspeisung als dezentrales , partnerschaftliches und nachhaltiges System. Special consideration was given to implementation and sustainability requirements. The project was supported by the federal state of North Rhine-Westphalia and the European Commission. Crude biogas, locally fed in Methane synthesis under mild conditions for decentralized applications; Methansynthese unter milden Bedingungen fuer dezentrale Anwendungen.

It is a central aim of the German government to significantly reduce the emission of greenhouse gases in the next years. One possibility to reach this aim is the substitution of fossil fuels, especially natural gas, by fuels from biogenic sources Bio-SNG. However, it is a drawback of Bio-SNG that the production costs are considerably higher than those of fossil natural gas. This work provides an approach to reduce the production costs of Bio-SNG.

It is the aim to reduce the process parameters of the methane synthesis. At the same time, it has to be ensured that high methane yields are achieved even at those mild conditions. A procedure for the optimization of the methanation catalyst activity will be presented. If the catalyst is as active as possible even at mild conditions, it will be possible to produce Bio-SNG cost efficient even in small, decentralized scale.

Power semiconductors for the decentralized energy supply; Leistungshalbleiter fuer die dezentrale Energieeinspeisung. The grid connection of PV and wind energy is done by inverters, whose power density, losses and costs are mainly determined by power semiconductors. In this paper, the main topologies for line side inverters and the demands on the power semiconductors are discussed. Decentralized energy policy turnaround. Opportunities and challenges; Dezentrale Energiewende.

This book supplies a comprehensive inventory of an already beginning decentralized energy policy turnaround. The potentials of an effective energy policy turnaround are described by means of present structures, technologies and scientifically proven results. The book presents new technologies and effective concepts in order to replace the centralised energy supply by decentralized structures.

The reduction of expenses and energy-autonomous systems up to the zero-tariff heating are the main impulses for the utilization of decentralized forms of energy. Decentralized hydrogen production for fuel cells; Dezentrale Wasserstoffproduktion fuer Brennstoffzellen. Entwicklung eines Kompaktreformers fuer erdgasbetriebene Brennstoffzellenheizgeraete.

The reconstruction of energy-supply towards more sustainability has reached the boiler rooms. More and more innovative heating systems come into the market like heat pumps, solar-thermal applications and last but not least decentralized cogeneration plants like Sterling- or internal combustion engines.

With fuel cells another high-performance technology is introduced, which comes along with especially high electrical efficiencies at low acoustic and noxious emissions. Efficient fuel processing systems are needed as an essential component of such devices. Combined heat and power CHP configurations add value for a wide range of industrial applications. The exhaust heat of approximately C can be utilised for heating purposes and the production of steam. Besides, it can be also fed directly to adsorption cooling systems.

With more than fuel cell power plants operating worldwide, this technology is a serious alternative to conventional gas turbines or gas engines.

Conversion, storage and their development perspectives; Dezentrale Energie. Konversion, Speicherung und deren Entwicklungsperspektiven. The energy transition ''Energiewende'' has already impact on the energy generation structure in Germany. In future, these trends are likely to intensify and distributed systems, such as wind, solar and also biomass and waste are increasingly going to generate energy.

According to own simulations, it is foreseeable that the balance of energy demand increases sharply due to the high installed capacity, especially in wind power and PV systems in combination with their fluctuating generation. Due to the increasing surplus in electricity generation, energy has to be stored in the form of electricity, heat, but also chemically, because in this way, long-term storage and system transition of power to other forms of use, such as the chemical industry and mobility, can be achieved. System technology and examples of sustainable energy systems from the practice.

Systemtechnik und Beispiele nachhaltiger Energiesysteme aus der Praxis. Due to climatic changes renewable energies and sustainable energy systems are mostly focused in public discussions. The book under consideration reports on the essential function mechanisms, influencing parameters and potentials of major sustainable energy systems. Exemplary plants from the practice give reliable information for the daily work. The emphasis is on small, decentralized plants.

Exercises with solutions facilitate an access to different classes of materials.

Evaluation of scenarios for energy systems. Potentials, limits and acceptance; Bewertung von Szenarien fuer Energiesysteme. Potenziale, Grenzen und Akzeptanz. In contrast to previous approaches in connection with the energy transition, the dissertation leads to a change of perspective towards social consideration. Previous scenario studies focused on technical feasibility as well as individual cost and environmental aspects, as shown in the pre-analysis.

Society plays a secondary role in this case. Instead of being taken into account in the prior decision-making process, time and effort are often invested in the downstream conviction of the population only after that. The approach pursued in the work consistently focuses on incorporating social preferences and barriers into the decision-making process in advance, so that decisions themselves have lasting validity.

Representative telephone surveys are used to determine the preferences of the population on the one hand and the limits of acceptance in the form of willingness to pay on the other hand. Only then are scenario calculations carried out in order to be able to quantitatively evaluate energy policy options for action. In the subsequent comparison of social barriers and model results, however, the limits of this approach are also made clear: Bisherige Szenariostudien richteten ihren Fokus auf die technische Machbarkeit sowie einzelne Kosten- und Umweltaspekte, wie in der Voranalyse gezeigt wird.

Die Gesellschaft spielt in diesem Fall eine sekundaere Rolle. Statt einer Beruecksichtigung im vorab geschalteten Entscheidungsprozess werden so haeufig erst im Anschluss Zeit und Aufwand in die nachgelagerte Ueberzeugung der Bevoelkerung investiert. Der in der Arbeit verfolgte Ansatz setzt konsequent darauf, gesellschaftliche Praeferenzen und Barrieren vorab in die Entscheidungsfindung einzubeziehen, damit Entscheidungen selbst nachhaltig Bestand haben. Dazu werden repraesentative Telefonbefragungen genutzt, mit denen einerseits die Praeferenzen der Bevoelkerung, andererseits die Grenzen der Akzeptanz in Form der Zahlungsbereitschaft ermittelt werden.

Erst im Anschluss daran werden Szenariorechnungen durchgefuehrt, um energiepolitische Handlungsoptionen auch quantitativ bewerten zu koennen. Bei der anschliessenden Gegenueberstellung von gesellschaftlichen Barrieren und Modellergebnissen werden jedoch auch die Grenzen dieses Ansatzes vor Augen gefuehrt: So kann eine aus Bevoelkerungsperspektive erwuenschte Handlungsoption hier der Braunkohleausstieg auch an politischen und rechtlichen Schranken scheitern.

Research for the energy transition. The organization of the energy systems; Forschung fuer die Energiewende. Die Gestaltung des Energiesystems. The volume on research for the energy transition includes contributions to the FVEE annual meeting concerning the following issues: Sustainability for power generation exemplarily shown by regenerative energy systems.

Final report; Nachhaltigkeit am Beispiel regenerativer Energiesysteme zur Stromerzeugung. Since the energy sector plays a key role in the concept of sustainable development, aspects of sustainability should be addressed within the scope of technology assessments. This applies particularly to new energy systems and new technological solutions. To evaluate sustainability, indicators are needed.

A system of indicators was designed within a research project carried out by the Chair of Energy Systems and Energy Economics of the Ruhr-University Bochum. At first, the Brundtland-Definition for sustainable development was put in terms for energy conversion systems. Secondly, indicators were selected.

For this purpose, a standardized procedure was developed that allows quantified multi criteria analysis. Overall objective was to cover all significant issues of sustainability by a minimum number of indicators. Seven appropriate indicators were identified: To prove the applicability of the indicator system, sample calculations were made for several solar and wind energy systems as well as for a natural gas fired power plant.

Beside these examples, the indicator set in principle is applicable to any other technological pathway. It enables comparisons between conventional power generation technologies and innovative renewable energy systems. German wind energy conference. In this year, the German wind energy conference is organised by DEWI for the fifth time, a conference which established itself within the last years as ''The Technical Conference''.

In spite of the large quantity of lectures and following the tradition of our former events, the conference will again last only two days, offering a chance to all those who have difficulties to find the time to inform themselves about the latest technical and scientific developments and experience in the field of wind energy.

The fast-growing world-wide application of wind energy with the resulting new challenges for technology and operation leads us more than ever to place particular emphasis on the combination of theory and application of wind energy when defining the main technical and scientific topics of the conference. With a total number of proposals for lectures, 27 of which are in English, from 17 different countries, DEWEK already met with a very favourable response.

For the first time there will be a German-English simultaneous translation during the conference, to allow participants from foreign countries to follow the lectures. The exceptionally high quality of the papers proposed made it extremely difficult for us this time to make the necessary distinction between lecture and poster contributions. To an extent that we never reached before, the papers deal with very concrete aspects of the application of wind energy, and thus reflect the operating conditions varying from site to site of a new energy technology spreading rapidly all over the world.

With our experience we are confident to have made a good selection and to be able to offer you an attractive programme. At the time of the conference, wind turbines with a total capacity of MW will be installed in Germany, a fact that signals uninterrupted growth and makes Germany the motor of the technological development in this field. We expect more that participants from all over the world since the meeting is not only directed to scientists and engineers but will also be of interest for bankers, developers and users.

Conference subjects will focus on the technical development of 2 MW plus wind turbines and the special problems -solved and unsolved - of wind energy utilisation in complex terrain and in the offshore area. Der Tradition folgend ist die Konferenz trotz der Themenfuelle wieder auf zwei Tage beschraenkt, damit auch dem Vielbeschaeftigten die Moeglichkeit geboten wird, sich ueber die neuesten technischen und wissenschaftlichen Entwicklungen und Erfahrungen aus dem Bereich der Windenergie zu informieren.

Die schnelle, weltweite Verbreitung der Windenergie, mit den daraus resultierenden neuen Herausforderungen fuer Technik und Betrieb, veranlasste uns, noch staerker als frueher darauf zu achten, die Verbindung zwischen Theorie und Anwendung bei der Auswahl der Themenschwerpunkte sicherzustellen.

Mit eingesandten Vortragsvorschlaegen, darunter 27 englischsprachigen aus 17 Laendern, erreichte die DEWEK bisher schon eine sehr gute Resonanz. Die ausserordentlich hohe Qualitaet der Vortragsvorschlaege machten es uns diesmal besonders schwer, die erforderliche Unterscheidung zwischen Vortrag und Poster zu treffen. In einem Umfang wie niemals zuvor werden in den Berichten ganz konkrete Themen aus der Anwendung der Windenergie behandelt, ein Spiegel der von Standort zu Standort sich aendernden Einsatzbedingungen einer sich weltweit rasant ausbreitenden neuen Energietechnologie.

Wir glauben mit unserer Erfahrung die richtige Auswahl der Vortraege getroffen zu haben und hoffen Ihnen damit ein attraktives Programm bieten zu koennen. Zum Zeitpunkt der Konferenz werden in Deutschland Windturbinen mit einer Gesamtleistung von MW installiert sein, ein Zeichen weiterhin ungebrochenen Wachstums, das Deutschland zum Motor der technischen Entwicklung machte. Wir erwarten deshalb mehr als Teilnehmerinnen und Teilnehmer aus dem In- und Ausland, insbesondere auch deshalb, weil sich die Konferenz nicht nur an Wissenschaftler und Ingenieure wendet, sondern mit ihren vielen interessanten Themen auch fuer Anwender und Finanziers der Windenergie von Bedeutung sein wird.

Inhaltlich gepraegt sein wird die Konferenz durch die technische Entwicklung der Windturbinen mit ueber 2 MW Nennleistung und durch die geloesten und ungeloesten Besonderheiten der Windenergienutzung an Standorten im komplexen Gelaende und im Offshore-Bereich. Spannungsfelder und blinde Flecken. Directory of Open Access Journals Sweden. Sichtbar wird die Etablierung als Fach u. Bei einer kritischen Betrachtung z. Zu unterscheiden ist hierbei bspw. Proceedings; Biogas in der Landwirtschaft. Helga Schneider ; 23 Common project of farmers and public utilities - Feeding of biogas with amine purification Johannes Steinhauer ; 23 Feeding bio methan from the view of a plant operator Thomas Balling ; 24 Potentials for an optimized and resources carefully delivery of bio methan - Guidelines for a further expansion for biogas utilization Wolfgang Urban ; 25 Repowering of biogas plants Anton Baumann ; 26 Repowering of biogas plants for enhancing the process efficiency Matthias Effenberger ; 27 From troubled kid to star performers - On the repowering of a biogas plant Hans-Werner Gress.

Furthermore, 55 posters were presented. This proceedings volume contains contributions by about 70 authors on market trends, funding, marketing, boundary conditions and sales promotion of thermal solar energy and photovoltaic systems. The contributions reflect the diversity of authors, e. Central issues were markets in and outside Europe, quality assurance, interdepartmental cooperations, and marketing strategies of the solar industry.

The proceedings volume also contains the conference schedule and self-descriptions of the authors' institutions. Future technologies for bioenergy. Within the 4th Rostock bioenergy forum 'future technologies for bioenergy' at 27th and 28th October, , in Rostock Federal Republic of Germany the following lectures were held: Nadine Doden ; 4 Potentials of wooden biomass from the landscape conservation using the Lower Saale valley Sachsen-Anhalt as an example Karen Runge ; 5 Value creation with energy wood in rural area - Results of a potential study Marco Hahs ; 6 Soil ecological evaluation of short rotational plantations on farmland Christel Baum ; 7 Development of moulds and dry weight losses in bulk wood chips Christine Idler ; 8 Logistics of pellets during the harvest of short-term rotation areas with a field chopper Franz Handler ; 9 Concepts of combustion of biomass within the scope of the BMU funding program 'Energetic utilization of biomass' Diana Pfeiffer ; 10 Thermoelectric transformer for biogenic heat Karl-Ernst Schnorr ; 11 Emissions of benzene in the combustion f gases from wood in cogeneration plants Christian Hirschmeier ; 12 Utilization of additives in the combustion of miscanthus pellets in a small-scale furnace Use of regenerative energy sources and hydrogen technology.

Proceedings; Nutzung regenerativer Energiequellen und Wasserstofftechnik Learn how to draw a labyrinth and build your own labyrinth by following the pattern of a Cretan 7 circuit Labyrinth. How to Draw Labyrinths. I created these video tutorials to further my understanding of these basic patterns. Eventually I hope to have examples of every design. Mazes are puzzles, designed to vex the mind, but labyrinths are contemplative designs, designed to focus the mind.

The Cretan labyrinth design has been around for thousands and thousands of years. The ancient Greeks used to draw the seven-course unicursal design in jars. Wir haben heute neue M glichkeiten, dieser Frage nachzugehen. In diesem Buch werden neue Erkenntnisse von Forschungsarbeiten am F. Daneben wird in z. Read more Read less. Save Extra with 1 offer. To get the free app, enter mobile phone number. See all free Kindle reading apps. I'd like to read this book on Kindle Don't have a Kindle? Be the first to review this item Would you like to tell us about a lower price?