@article{HerzogJaenchen2016, author = {Herzog, Thomas H. and J{\"a}nchen, Jochen}, title = {Adsorption Properties of Modified Zeolites for Operating Range Enhancement of Adsorption Heat Pumps through the Use of Organic Adsorptive Agents}, series = {Energy Procedia}, volume = {91}, journal = {Energy Procedia}, issn = {1876-6102}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-6614}, pages = {155 -- 160}, year = {2016}, abstract = {Faujasite zeolites with the highest possible Al-content and different cations as well as a dealuminated zeolite Y have been chosen to study the impact on the adsorption behavior in view of differed adsorptive agents for heat pumps or thermochemical storages. Our results show advantages and disadvantages for water, methanol or ethanol adsorption due to the structure of the anion skeleton, kind of cations and size of the adsorbat molecule.}, language = {en} } @article{RistićFurboMoseretal.2016, author = {Ristić, Alenka and Furbo, Simon and Moser, Christoph and Schranzhofer, Hermann and Lazaro, Ana and Delgado, Monica and Pe{\~n}alosa, Conchita and Zalewski, Laurent and Diarce, Gonzalo and Alkan, Cemil and Gunasekara, Saman N. and Haussmann, Thomas and Gschwander, Stefan and Rathgeber, Christoph and Schmit, Henri and Barreneche, Camila and Cabeza, Luiza and Ferrer, Gerard and Konuklu, Yeliz and Paksoy, Halime and Rammelberg, Holger and Munz, Gunther and Herzog, Thomas H. and J{\"a}nchen, Jochen and del Barrio, Elena Palomo}, title = {IEA SHC Task 42 / ECES Annex 29 WG A1: Engineering and Processing of PCMs, TCMs and Sorption Materials}, series = {Energy Procedia}, volume = {91}, journal = {Energy Procedia}, issn = {1876-6102}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-6629}, pages = {207 -- 217}, year = {2016}, abstract = {An overview on the recent results on the engineering and characterization of sorption materials, PCMs and TCMs investigated in the working group WG A1 "Engineering and processing of TES materials" of IEA SHC Task 42 / ECES Annex 29 (Task 4229) entitled "Compact Thermal Energy Storage" is presented.}, language = {en} } @article{JaenchenFeyhSzewzyketal.2016, author = {J{\"a}nchen, Jochen and Feyh, Nina and Szewzyk, Ulrich and de Vera, Jean-Pierre Paul}, title = {Provision of water by halite deliquescence for Nostoc commune biofilms under Mars relevant surface conditions}, series = {International Journal of Astrobiology}, volume = {15}, journal = {International Journal of Astrobiology}, number = {2}, issn = {1475-3006}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-10840}, pages = {107 -- 118}, year = {2016}, abstract = {Motivated by findings of new mineral related water sources for organisms under extremely dry conditions on Earth we studied in an interdisciplinary approach the water sorption behaviour of halite, soil component and terrestrial Nostoc commune biofilm under Mars relevant environmental conditions. Physicochemical methods served for the determination of water sorption equilibrium data and survival of heterotrophic bacteria in biofilm samples with different water contents was assured by recultivation. Deliquescence of halite provides liquid water at temperatures <273 K and may serve as water source on Mars during the morning stabilized by the CO2 atmosphere for a few hours. The protecting biofilm of N. commune is rather hygroscopic and tends to store water at lower humidity values. Survival tests showed that a large proportion of the Alphaproteobacteria dominated microbiota associated to N. commune is very desiccation tolerant and water uptake from saturated NaCl solutions (either by direct uptake of brine or adsorption of humidity) did not enhance recultivability in long-time desiccated samples. Still, a minor part can grow under highly saline conditions. However, the salinity level, although unfavourable for the host organism, might be for parts of the heterotrophic microbiota no serious hindrance for growing in salty Mars-like environments.}, language = {en} }