Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
2017Innovative Adsorbent Heat Exchangers: Design and Evaluation
Schnabel, L.; Füldner, G.; Velte, A.; Laurenz, E.; Bendix, P.; Kummer, H.; Wittstadt, U.
Book Article
2017A novel adsorption module with fiber heat exchangers: Performance analysis based on driving temperature differences
Wittstadt, U.; Füldner, G.; Laurenz, E.; Warlo, A.; Große, A.; Herrmann, R.; Schnabel, L.; Mittelbach, W.
Journal Article
2017A simplified approach for modelling latent heat storages: Application and validation on two different fin-and-tubes heat exchangers
Neumann, H.; Palomba, V.; Frazzica, A.; Seiler, D.; Wittstadt, U.; Gschwander, S.; Restuccia, G.
Journal Article
2016Experimental characterization of aluminum fibre/SAPO-34 composites for adsorption heat pump applications
Velte, A.; Herrmann, R.; Andersen, O.; Wittstadt, U.; Füldner, G.; Schnabel, L.
Abstract
2016Fuel driven sorption heat pumps. Overview of the technology, market and system performance
Malenkovic, I.; Wittstadt, U.; Bongs, C.; Schossig, P.
Conference Paper
2015A new adsorbent composite material based on metal fiber technology and its application in adsorption heat exchangers
Wittstadt, U.; Füldner, G.; Andersen, O.; Herrmann, R.; Schmidt, F.
Journal Article
2011Adsorption Heat Exchangers - A Comparism of Two Experimental Methods for Their Characterization
Wittstadt, U.; Sapienza, A.; Sonnenkalb, D.; Frazzica, A.; Restuccia, G.; Schnabel, L.
Conference Paper
2011Numerical Layer Optimization of Alumin Fibre/ Sapo-34 Composites for the Application in Adsorptive Heat Exchangers
Füldner, G.; Schnabel, L.; Wittstadt, U.; Henning, H.-M.; Schmidt, F.
Conference Paper
2011Numerical layer optimization of aluminum fibre/sapo-34 composites for the application in adsorptive heat exchangers
Füldner, G.; Schnabel, L.; Wittstadt, U.; Henning, Hans-Martin; Schmidt, F. P.
Conference Paper
2010Transient modeling of an adsorber using finned-tube heat exchanger
Riffel, D.B.; Wittstadt, U.; Schmidt, F.P.; Nunez, T.; Belo, F.A.; Leite, A.P.F.; Ziegler, F.
Journal Article
2009Boost in power density of adsorbers by zeolite coated metal fibres
Füldner, G.; Wittstadt, U.; Joshi, C.; Schmidt, F.
Conference Paper
2008Electrolysis: Hydrogen production using electricity
Wittstadt, U.
Book Article
2007Bipolarplatte fuer einen PEM-Elektrolyseur
Hacker, B.; Jungmann, T.; Wittstadt, U.; Smolinka, T.
Patent
2007Solar hydrogen production by water splitting with a conversion efficiency of 18%
Peharz, G.; Dimroth, F.; Wittstadt, U.
Journal Article, Conference Paper
2006Hydrogen production in a PV concentrator using III-V multi-junction solar cells
Dimroth, F.; Peharz, G.; Wittstadt, U.; Hacker, B.; Bett, A.W.
Conference Paper
2005Data results and operational experience with a solar hydrogen system
Chaparro, A.M.; Soler, J.; Escudero, M.J.; Ceballos, E.M.L. de; Wittstadt, U.; Daza, L.
Journal Article
2005Membrane electrode assemblies for unitised regenerative polymer electrolyte fuel cells
Wittstadt, U.; Wagner, E.; Jungmann, T.
Conference Paper, Journal Article
2005Niedertemperatur-Brennstoffzellen - Stand und Perspektiven der PEMFC
Lehnert, W.; Grünerbel, M.; Mergel, J.; Wippermann, K.; Scharmann, H.; Kulikovsky, A.; Hebling, C.; Wittstadt, U.; Smolinka, T.; Gülzow, E.; Schulze, M.; Kaz, T.
Conference Paper
2005Performance and endurance of PEFC single cells and stacks fed hydrogen and reformate
Smolinka, T.; Wittstadt, U.; Grünerbel, M.; Lehnert, W.
Conference Paper
2005Regenerativer Wasserstoff - Erzeugung, Nutzung und Syntheserohstoff
Specht, M.; Zuberbühler, U.; Wittstadt, U.
Conference Paper
2004Entwurf, Aufbau und Test eines Speichersystems für eine autonome Stromversorgung mit Photovoltaik und reversibler Brennstoffzelle
Kopte, D.
: Wittstadt, U. (Prüfer); Jungmann, T. (Prüfer); Roth, W. (Prüfer)
Thesis
2004A PEM fuel cell for combined measurement of current and temperature distribution, and flow field flooding
Hakenjos, A.; Muenter, H.; Wittstadt, U.; Hebling, C.
Conference Paper, Journal Article
2003Electrolytic purification of [18O] water
Weber, K.; Marx, H.; Vierling, J.; Wittstadt, U.; Eisenhut, M.
Journal Article
2003Influence of operating conditions on the performance of a PEFC fed by reformate
Smolinka, T.; Wittstadt, U.; Lehnert, W.
Conference Paper
2003PEM fuel cells for the power supply of electronic appliances
Hebling, C.; Burger, B.; Hakenjos, A.; Hesselmann, J.; Münter, H.; Pócza, D.; Schumacher, J.O.; Wittstadt, U.; Zedda, M.; Zobel, M.
Conference Paper