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Environmental Informatics 2005

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  • Konferenzbeitrag
    Analysis of Residential Heat Consumption and Building Data
    (Informatics for Environmental Protection - Networking Environmental Information, 2005) Krüger, Birgitta; Kleemann, Manfred
  • Konferenzbeitrag
    Application of GIS Analysis and CRES DSS for Optimal Design of Combustion Facility for Biomass
    (Informatics for Environmental Protection - Networking Environmental Information, 2005) Boukalová, Zuzana; Heller, Jakub; Kořán, Petr; Malamatenios, Charalambos; Petříková, Vlasta
    Design of facilities for conversion of biomass into heat or electrical energy requires detailed preparatory spatial analysis of the area concerned. Within a case study of 5th FP research project ENERGY FOREST (NNE5-2002- 00049) in Chomutov district (Czech Republic), a pilot application of integrated GIS analysis and CRES DSS decision support system (developed within another project) was performed to identify total amounts of available biomass and to design the combustion (steam turbine technology) facility in terms of its optimal placement and installed power. Suitable energy crops and expected yearly energy yields were calculated on the base of GIS analysis of the concerned territory using an integrated parameter of soil productivity for each cadaster of the district. Several alternatives of the conversion unit design were tested for various scenarios of biomass supplies and different locations of the facility. Economical parameters of each alternative were taken as crucial factors for selection of optimal facility design. Other factors like environmental protection, landuse, agricultural traditions and techniques, accessibility of terraine and others were taken into consideration for assessment of the amount of the biomass available, which was, in spatial form, an input parameter for testing of various alternatives.
  • Konferenzbeitrag
    Numerical Modelling and Analysis of Water Free Surface Flows∗
    (Informatics for Environmental Protection - Networking Environmental Information, 2005) Dabaghi, Fadi; El Kacimi, Abdellah; Kada Kloucha, Chakib; Mezali, Farouk; Nakhle, Bassam
    Various environmental engineering applications related to water resources involve unsteady free surface flows. A full 3D models based on Navier-Stokes equations are a good description of the physical features concerning several phenomena as for example lake eutrophication, transport of pollutant, flood in rivers, watershed, etc. However these models are characterized by an important computational effort, that we aim to reduce in some case by the help of 2D models or by appropriate coupling models of different dimensions and by the use of the parallel algorithmic trough HPCN facilities. In this work, we present an overview of some approximations methodologies and techniques for an efficient numerical modelling of water free surface problems in a finite element context.
  • Konferenzbeitrag
    The Hydrological IT Framework of the Federal Waterways and Shipping Administration, Germany
    (Informatics for Environmental Protection - Networking Environmental Information, 2005) Michl, Christian; Steinmann, Frank; Reineke, Anja
    The Federal Waterways and Shipping Administration (WSV) in Germany provides as main tasks the safe and easy of inland and coastal shipping transport. To assure these main tasks information technology (IT) solutions and their operation are playing a major role. As central IT support and development section the Federal Waterway and Research Institute with their Information Technology Division are in charge for these developments. Beginning in the year 2000 the hydrological IT framework was redesigned to generate a structured data flow combining the elements of data acquisition, data processing and data distribution providing a standardised intranet solution and an e- Government application. The data acquisition using different telemetric systems as well as on- and offline components were standardised introducing a simultaneous online data transfer system which is connected to regional hydrological data storages. The regional hydrological data storages are grouped in three Citrix Metaframe terminal server farms split in seven server locations and providing the hydrological application software. For the data acquisition the WISKI workbench systems of the Kisters AG is used; existing of different modules for data validation, standardised reporting, stage and flow regulations, tidal and stream flow analysis. Using the Citrix Secure Gateway technology and web interface the internet access for the operation of the system is guaranteed and all components can be used from variable access. Server balancing and WISKI backup database servers provide a high working performance and security. The regional hydrological data storages provide the raw and analysed data to a central hydrological information system for the flood and storm tide warning service, e-Government applications, archiving of historical data and further distribution services.
  • Konferenzbeitrag
    Modelling the Hydrodynamics and Water Quality of the Vltava River Reservoir Cascade
    (Informatics for Environmental Protection - Networking Environmental Information, 2005) Růžička, Martin; Hejzlar, Josef; Jarošík, Jiří
    Mathematical modelling is an efficient tool for evaluation of impacts of human activities and environmental changes on water quality in rivers and reservoirs. This contribution describes simulations of water quality in the Vltava River reservoir system, namely cascade of reservoirs Hněvkovice, Orlík, Kamýk, Slapy, Štěchovice, and Vrané. The twodimensional water quality model CE-QUAL-W2 was used for this task over years 2000 to 2003. Sensitivity analysis, calibration, and evaluation of the model were done. The model gave good results in particular for hydrodynamics, water temperature, and conservative constituents because of good quality of available hydrological and meteorological input data. The accuracy of results was strongly depended on the quality of input data and sampling frequency. Minor problems occurred in water quality simulations based on monthly input data in periods with fluctuating discharges.
  • Konferenzbeitrag
    Air Quality Management Via the Forecasting Models
    (Informatics for Environmental Protection - Networking Environmental Information, 2005) Holnicki, Piotr; Kałuszko, Andrzej
    The paper addresses the possible applications of air pollution forecasting models for supporting decisions concerning regional strategy of emission abatement or the real-time emission control. The approach is based on the integration of a dynamic, air pollution forecasting model with the respective optimization techniques. The first problem (static optimization) consists in the optimal selection of emission reduction technologies within a given set of power plants. The second problem is formulated as on-line minimization of an environmental cost function, by the respective modification of emission level in the controlled sources, according to the changing meteorological conditions. The formulation of the gradient optimization algorithm is based on the necessary optimality conditions for the problem. The test computations have been performed for the above tasks, basing on the set of the major power plants in the industrial region of Upper Silesia (Poland).
  • Konferenzbeitrag
    European Energy System Models for the Analysis of Interdependencies Among Relevant Markets
    (Informatics for Environmental Protection - Networking Environmental Information, 2005) Perlwitz, Holger; Cail, Sylvain; Möst, Dominik; Rentz, Otto
    In the last decade, the European energy supply sector has faced far-reaching structural changes such as market liberalisation and stronger environmental laws that have led to new market structures and a new competitive environment. The ongoing discussion on emission reduction targets and climate change mitigation strategies threatens to cause new modifications for energy supply companies. This paper presents two PERSEUS-CERT3 model upgrades which focus on the interdependencies among decisive developments in the energy market, especially in the context of emission reduction strategies. These are, on the one hand, a more detailed representation of the European gas supply sector and, on the other hand, a sophisticated representation of demand side measures to increase energy efficiency.
  • Konferenzbeitrag
    Development of an Agent-based Model to Analyse the Effect of Renewable Energy on Electricity Markets
    (Informatics for Environmental Protection - Networking Environmental Information, 2005) Genoese, Massimo; Sensfuß, Frank; Weidlich, Anke; Möst, Dominik; Rentz, Otto
    In this paper we present a bottom-up modelling approach of electric power and CO2-certificate markets including a detailed modelling of renewables using agent-based simulation: The PowerACE model. It has been developed at the Institute for Industrial Production, the Chair for Information Management and Systems (University of Karlsruhe) and the Fraunhofer Institute for Systems and Innovation Research. The market players of the German electricity market are modelled as independent entities. It is well suited to consider different strategies of market players and testing different market mechanisms.
  • Konferenzbeitrag
    Making Air Quality Assessments with AIRBASE
    (Informatics for Environmental Protection - Networking Environmental Information, 2005) Mol, Wim; de Leeuw, Frank
    The European Topic Centre for Air and Climate Change (ETC/ACC2) has developed AIRBASE, a database containing European-wide information on air quality monitoring stations and data. Air quality data for the 31 member countries of the European Environmental Agency (EEA) is collected under the Council Decision 97/101/EC (Exchange of Information). AIRBASE contains data for more than 40 pollutants at about 4300 stations over a period of more than 10 years. Besides the AIRBASE database, the AIRBASE information system consists of a Data Exchange Module which facilitates the exchange of information between the supplying countries and AIRBASE and an interactive graphical web-application AIRVIEW3 to provide an easy access to the data both for the general public as well as for the professional user. Last year AIRVIEW 3.1 is released. Some interesting new features of AIRVIEW will be presented. There are also XML-dumps available of AIRBASE. The national data suppliers are responsible for the quality of the data. Nevertheless, quality checks have been performed at the incoming data. AIRBASE has been used in a number of air quality assessments, both for the European Commission as well as for the EEA. Selected results - e.g. changing chemical composition - will be presented.
  • Konferenzbeitrag
    RAINS-NL: An Integrated Assessment Model to Support Dutch Air Quality Policy Making
    (Informatics for Environmental Protection - Networking Environmental Information, 2005) Aben, Jan; Hettelingh, Jean-Paul; Schöpp, Wolfgang
    The IIASA integrated assessment model RAINS is widely used to support air quality policy making in a European context. This paper describes RAINS-NL, a specific version of RAINS with Dutch extensions, which was developed by the Netherlands Environmental Assessment Agency, in collaboration with IIASA, to support Dutch policy makers in European negotiations.