The number of battery electric vehicles (BEVs) and plug-in hybrid electric vehicles (PHEVs) is in... more The number of battery electric vehicles (BEVs) and plug-in hybrid electric vehicles (PHEVs) is increasing worldwide. In this respect, developing a dense and extensive charging infrastructure network is required as soon as possible to deal with the increasing number of electric vehicles (EVs). However, high integration of charging infrastructure into the grid challenges the electrical distribution grid substantially owing to the additional loads. This paper introduces the project "CLEVER (Charging Low Emission Vehicles in Russelsheim) – Electric City", funded by the German Federal Ministry of Economic Affairs and Energy. The main objective of this project is to build the necessary charging infrastructure and develop strategies in a mid-sized German town called Russelsheim am Main with 65,000 inhabitants. The second objective is to understand how to optimize the management of this charging infrastructure including two battery storage systems supplied by renewable energy sour...
The measurement of the hydrogen desorption properties of sodium alanate ( N a A l H 4 ) powder co... more The measurement of the hydrogen desorption properties of sodium alanate ( N a A l H 4 ) powder compacts presents a particular challenge due to various material changes. Therefore, a parallel measurement method for both spectral and gravimetrical data acquisition has been developed. The optical tracking of such chemical reactions with gaseous exhalation requires a special apparatus, since hydrogen absorption/desorption alters the granularity and volume of the sample. The technique combines a commercial Fourier transform infrared spectrometer with a self-developed heatable attenuated total reflection (ATR) cuvette that maintains the indispensable close contact between the ATR medium and sample. In particular, strongly absorbing or scattering samples can be characterized with respect to their transmission changes and their mass loss, due to the evanescent field’s penetration depth of a few micrometers into the bulk of the sample. In this work, the first and second desorption step of 2 ...
The number of battery electric vehicles (BEVs) and plug-in hybrid electric vehicles (PHEVs) is in... more The number of battery electric vehicles (BEVs) and plug-in hybrid electric vehicles (PHEVs) is increasing worldwide. In this respect, developing a dense and extensive charging infrastructure network is required as soon as possible to deal with the increasing number of electric vehicles (EVs). However, high integration of charging infrastructure into the grid challenges the electrical distribution grid substantially owing to the additional loads. This paper introduces the project "CLEVER (Charging Low Emission Vehicles in Russelsheim) – Electric City", funded by the German Federal Ministry of Economic Affairs and Energy. The main objective of this project is to build the necessary charging infrastructure and develop strategies in a mid-sized German town called Russelsheim am Main with 65,000 inhabitants. The second objective is to understand how to optimize the management of this charging infrastructure including two battery storage systems supplied by renewable energy sour...
The measurement of the hydrogen desorption properties of sodium alanate ( N a A l H 4 ) powder co... more The measurement of the hydrogen desorption properties of sodium alanate ( N a A l H 4 ) powder compacts presents a particular challenge due to various material changes. Therefore, a parallel measurement method for both spectral and gravimetrical data acquisition has been developed. The optical tracking of such chemical reactions with gaseous exhalation requires a special apparatus, since hydrogen absorption/desorption alters the granularity and volume of the sample. The technique combines a commercial Fourier transform infrared spectrometer with a self-developed heatable attenuated total reflection (ATR) cuvette that maintains the indispensable close contact between the ATR medium and sample. In particular, strongly absorbing or scattering samples can be characterized with respect to their transmission changes and their mass loss, due to the evanescent field’s penetration depth of a few micrometers into the bulk of the sample. In this work, the first and second desorption step of 2 ...
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Papers by Birgit Scheppat