Energie-Umweltmanagement
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Browsing Energie-Umweltmanagement by Type "info:eu-repo/semantics/conferenceObject"
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227 1 - PublicationAssessing the technical feasibility of value chains for Reed based biofuels(2015)
; ;Kitzler, Hannes ;Beckmann, Georg; ;Pfeifer, Christoph259 1357 - PublicationBallenfeuerungsanlage für halmartige Biomasse zur Strom- und Wärmeerzeugung(2006)
; ; Beckmann, Georg178 1 - Publication
156 1 - PublicationCharacterization of the Reversible Hydrogenation Properties of Sodium Alanate under various contaminated Hydrogen Conditions(2013-06-17)
;Reissner, Alexander; ;Hummel, Stefan ;Scharlemann, CarstenTajmar, Martin122 1 - PublicationCombustion of reed biomass in small and medium scale plants - Results of laboratory and field tests(2015)
; ;Kitzler, Hannes; Pfeifer, Christoph173 1 - PublicationDevelopment of a Ti-doped Sodium Alanate Hydrogen Storage System(2009)
; ;Reissner, Alexander ;Dudzinski, PiotrTajmar, MartinA trade-off analysis regarding power supply on satellites, which was performed for the European Space Agency (ESA), suggested that fuel cells might be an interesting candidate to replace secondary batteries on satellites. The Austrian Research Centers (ARC) decided to approach this topic by combining a fuel cell with innovative chemical hydrogen and oxygen storage as well as integrating the oxygen storage system into a form that can be used as a structural element. Also an integration of the fuel cell into the hydrogen tank, and the resulting storage of dissipation heat, results in a reduction of the necessary thermal control system. These advantages are very interesting in order to obtain higher weight efficiencies, which are especially important for space and automotive applications. The complete system includes a hydrogen storage tank based on Ti-doped sodium alanate and a novel oxygen tank based on YBaCo4O7 developed at ARC. Water tanks and a micro-fluidic system connected to the fuel cell have been considered as well in order to provide a completely reversible system, competitive to batteries. For the hydrogen storage, a finite elements model has been developed, implementing the reaction kinetics of the storage process, in order to predict the thermal mechanisms during adsorption and desorption of hydrogen in sodium alanate. The present paper discusses these simulations, the development of an experimental hydrogen storage tank and the proposed concepts of a battery replacement system.97 1 - PublicationDevelopment of Innovative Hydrogen and Micro Energy Solutions at the Austrian Research Centers(American Institute of Aeronautics and Astronautics, 2008-07-28)
; ;Tajmar, Martin ;Dudzinski, PiotrReissner, Alexander180 500Scopus© Citations 5 - PublicationDevelopment of Innovative Micro Power Converter Technologies at the Austrian Institute of Technology(American Institute of Aeronautics and Astronautics, 2009-08)
; ;Vasiljevich, Ivanhoe ;Dudzinski, Piotr ;Tajmar, MartinGerger, JoachimWaste heat is a primary source of energy loss in many aerospace and terrestrial applications. The Austrian Institute of Technology (AIT) is presently developing two different types of micro power converters, promising high efficiencies in their respective application areas. The first converter is based on an innovative thermoacoustic Stirling engine concept without moving parts. Such a maintenance-free engine system would be particularly suitable for advanced Stirling radioisotope space power systems. The second converter is based on microturbines to use exhaust-gases for improving the overall efficiency for a number of applications. This paper will summarize our efforts on micro power converter technologies.104 1Scopus© Citations 1 - PublicationEnergieeffiziente Staubabscheidung für Biomassekessel mit kleiner bis mittlerer Leistung(2008)
; ;Beckmann, Georg; ;Makaruk, AleksanderHarasek, Michael148 1 - PublicationEnergy conversion from reed biomass - Overview of laboratory and field test results(2013)
; ;Kitzler, Hannes ;Beckmann, Georg; ; Pfeifer, Christoph162 2 - PublicationEnergy conversion of reed and wood in domestic wood-chip boilers(2013)
; ; Rath, Wolfgang146 1 - PublicationExponential pattern recognition for deriving air change rates from CO2 data(Institute of Electrical and Electronics Engineers (IEEE), 2017)
; ; ; ;Mateis, CristinelDejan, NickovicA novel procedure for automated determination of air change rates from measured indoor CO2 concentrations is proposed. The suggested approach builds upon a new algorithm to detect exponential build-up and decay patterns in CO2 concentration time series. The feasibility of the concept is proved with a test run on synthetic data that shows a good reproduction of the previously defined air change distribution. The demonstration continues with test runs on CO2 datasets measured in the kitchen and the sleeping room of two residential buildings. The derived air change rates were within the expected distributions and ranges in both cases when natural or mechanical ventilation was used.255 52735Scopus© Citations 3 - PublicationFeuerungsanlage zur Nutzung von fester Biomasse mit adiabater Brennkammer(2008)
; ;Beckmann, Georg129 1
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