15 Fakultätsübergreifend / Sonstige Einrichtung
Permanent URI for this collectionhttps://elib.uni-stuttgart.de/handle/11682/16
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Item Open Access Bedeutung des Wasserstoffs bei der zukünftigen Energiebedarfsdeckung(1980) Eickhoff, Hans-Günther; Martinsen, Dag; Patzak, Richard; Voß, AlfredZiel der vorliegenden Studie ist es, die Bedeutung des Wasserstoffs als langfristige Energieversorgungsoption aufzuzeigen. Die Darstellung erfolgt am Beispiel der Energieversorgung in der Bundesrepublik Deutschland. Für andere Nationen werden sich auf Grund anderer Rahmenbedingungen die eine oder andere Aussage etwas anders gestalten, aber das gemeinsame Problem der hohen Importabhängigkeit von Erdöl und Erdgas und die Suche nach langfristigen Optionen lassen die Grundtendenz der Aussagen auch für weitere Länder gültig erscheinen.Item Open Access A model for energy supply systems alternatives and their general environmental impact(1979) Agnew, Malcolm; Schrattenholzer, Leo; Voß, AlfredThe overall objective of the energy strategies modelling effort within IIASA's Energy Systems Program is to construct a set of multiregional models of the world to assist in the analysis and evaluation of regional and global energy strategies for the next 15 to 50 years. The energy system of each world region is characterized by a set of interrelated models, each dealing with a different aspect of energy systems analysis. These include (1) models of the macroeconomy; (2) inter-industry product flows; (3) energy demand; (4) primary energy resources; (5) energy supply technologies and their environmental impact; and of (6) the direct and indirect investment and operational requirements of energy systems. A global balance model of interregional trade in energy resources is under preparation for linking the set of regional models together. The present paper is concerned with item 5 above, namely the model MESSAGE, a Model for Energy Supply System Alternatives and Their General Environmental Impact. MESSAGE is formulated as a dynamic linear program for the comparison of new and existing supply technologies for the primary, secondary and end-use conversion and distribution of energy to satisfy each of the different components of a given energy demand. Constraints are imposed by the availability of primary energy resources and the carrying capacity of the environment. MESSAGE is an instrument designed to compare different energy supply and end-use technologies and to explore the consequences of pursuing a wide range of possible energy supply strategies under various assumptions concerning: the availability of primary energy supply; future energy conversion technologies; different levels of energy demand and end-use patterns; environmental control; and conservation of energy. The purpose of MESSAGE in particular, and of the modelling effort of the Energy Systems Program in general, is not to make predictions or forecasts but to clarify some of the major worldwide consequences of taking alternative energy policy choices at the regional and global levels. Although the model described here was conceived as an integral part of the multiregional energy study of the Energy Systems Program, it is a consistent entity which could be used independently of the other models in evaluating the energy supply strategies of individual nations.Item Open Access Item Open Access Sanfte Energieversorgung : Möglichkeiten, Probleme, Grenzen(1980) Oesterwind, Dieter; Renn, Ortwin; Voß, AlfredIm Rahmen der Auseinandersetzung mit den sozio-politischen Argumenten der Vertreter eines "sanften" Energieweges haben wir versucht deutlich zu machen, daß die von den alternativen Theoretikern angestrebten gesellschaftlichen Ziele, wie mehr Selbstbestimmung, Arbeitszufriedenheit und Sozialverträglichkeit nicht unmittelbar oder überhaupt nicht im Zusammenhang mit den Merkmalen einer "harten" oder "weichen" Technik stehen. Weiterhin läßt sich aufgrund unserer Projektion einer "sanften" Gesellschaft vermuten, daß die Rückführung auf eine Subsistenzwlrtschaft den Freiheitsspielraum des Menschen durch die größere Abhängigkeit von der Natur und eine stärkere kollektive Einbindung einengen würde; eine alternative Gesellschaft bietet dann keine Möglichkeit mehr, nicht "alternativ" zu leben.Item Open Access User's guide for the MESSAGE computer program(1978) Agnew, Malcolm; Schrattenholzer, Leo; Voß, AlfredThis paper is a description of MESSAGE as it is implemented on the computer. At the same time it is intended as a user's guide for the implemention of these programs. The paper is divided into 5 parts: Section 2 gives a complete list of the equations generated by the matrix generator program and its input file of data. The source code of the matrix generator, the input file, and a sample control program are listed in Section 6. Sections 3 through 5 describe the usage of the program in increasingly greater detail.