TY - BOOK A1 - Fieberg, Christian T1 - BIM-Datenmanagement in Theorie und Praxis T3 - BIM Basics N2 - Die BIM-Methode basiert auf dem Austausch von Modellen und Objektdaten. Diese entwickeln sich im Laufe des Bauprojektes weiter und dienen vielen Beteiligten als Grundlage für die eigenen Aufgaben. Daher ist ein eindeutiges und verlässliches Datenmanagement die Basis für eine gelungene Zusammenarbeit. Die dabei erzeugten Daten gehen mittlerweile weit über 3D-Modelle hinaus. Welche Daten, in welcher Detailtiefe zu welchem Zeitpunkt und in welchem Format vorliegen sollen, ist Gegenstand dieses Buches. Die Modelle und Objektattribute werden vorgestellt und, wo es nötig ist, vertiefend beschrieben. Das dazugehörige Datenmanagement wird anschaulich erklärt. Abgerundet wird das Buch mit Tipps zur richtigen Softwareauswahl und einem Quiz zum Test des eigenen Wissenstand. Die zweite Auflage greift dabei aktuelle Entwicklungen (z. B. IFC4.3 und LOIN) auf und erläutert neue Anforderungen und Inhalte der BIM-Objekte. KW - Open BIM KW - Datenmanagement KW - Auftraggeber-Informationsanforderungen KW - BIM KW - BIM-Abwicklungsplan KW - Datenkommunikation KW - IFC-Format KW - Planung KW - Softwarelösung Y1 - 2026 SN - 978-3-910476-51-6 PB - bSD Verlag CY - Berlin ET - 2. überarbeitete Auflage ER - TY - JOUR A1 - Pattyn, Cedric A1 - Sciacqua, Dario A1 - Kwiedor, Lukas A1 - Jagodar, Andrea A1 - Strunskus, Thomas A1 - Traeger, Franziska A1 - Lecas, Thomas A1 - Kovacevic, Eva A1 - Berndt, Johannes T1 - Controlled deposition of plasma-polyaniline thin film by PECVD: Understanding the influence of aniline to argon ratio JF - Plasma Processes and Polymers N2 - Low pressure capacitively coupled radiofrequency plasmas operated in a mixture of aniline vapor and argon are used for the deposition of thin films on silicon substrates. The influence of the aniline vapor fraction in the gas mixture upon the plasma properties and the characteristics of the deposited thin film is analyzed. Plasmas diagnostics are carried out using mass spectrometry and optical emission spectroscopy and the thin films are characterized by means of Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and near-edge X-ray absorption fine-structure spectroscopy. Experiments highlight that the use of a low aniline/argon ratio leads to the deposition of an amorphous film whereas high-aniline/argon ratios allow the synthesis of a plasma polymer similar to polyaniline. The properties of such plasmas and the mechanisms involved in the deposition process are discussed in detail. KW - mass spectrometry KW - NEXAFS KW - plasma KW - polyaniline KW - polymerization KW - XPS Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-49095 SN - 1612-8869 VL - 2022 IS - Volume 19, Issue 5 PB - Wiley-VCH ER - TY - JOUR A1 - Kuznetsov, Vitalii A1 - Lu, Leran A1 - Koza, Michael Marek A1 - Rogalla, Detleff A1 - Foteinou, Varvara A1 - Becker, Hans-Werner A1 - Nefedov, Alexei A1 - Traeger, Franziska A1 - Fouquet, Peter T1 - Microscopic Diffusion of Atomic Hydrogen and Water in HER Catalyst MoS2 Revealed by Neutron Scattering JF - The Journal of Physical Chemistry C N2 - The design of novel and abundant catalytic materials for electrolysis is crucial for reaching carbon neutrality of the global energy system. A deliberate approach to catalyst design requires both theoretical and experimental knowledge not only of the target reactions but also of the supplementary mechanisms affecting the catalytic activity. In this study, we focus on the interplay of hydrogen mobility and reactivity in the hydrogen evolution reaction catalyst MoS2. We have studied the diffusion of atomic hydrogen and water by means of neutron and X-ray photoelectron spectroscopies combined with classical molecular dynamics simulations. The observed interaction of water with single-crystal MoS2 shows the possibility of intercalation within volume defects, where it can access edge sites of the material. Our surface studies also demonstrate that atomic hydrogen can be inserted into MoS2, where it then occupies various adsorption sites, possibly favoring defect vicinities. The motion of H atoms parallel to the layers of MoS2 is fast with D ≈ 1 × 10−9 m2/s at room temperature and exhibits Brownian diffusion behavior with little dependence on temperature, i.e., with a very low diffusion activation barrier. KW - Binding energy KW - Diffusion KW - Hydrogen KW - Molecules KW - X-ray photoelectron spectroscopy Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-49089 SN - 1932-7455 VL - 2022 IS - Volume 126, Issue 51 SP - 21667 EP - 21680 PB - ACS Publications ER - TY - CHAP A1 - Schneider, Andreas A1 - Rabanal-Arabach, Jorge T1 - Shaalke: Development of a MATLAB Software Tool for Advanced Statistical Outdoor Data Evaluation T2 - EU PVSEC 2025, 42nd European Photovoltaic Solar Energy Conference and Exhibition 22-26 September 2025, Bilbao, Spain. Conference Proceedings N2 - This paper introduces Shaalke, a novel analytical software tool developed for the high-accuracy evaluation of long-term photovoltaic module measurement data. Addressing the critical need for robust parameter extraction from field data, Shaalke integrates advanced filtering, linear regression, and algorithmic processing to overcome limitations of traditional evaluation methods. We demonstrate Shaalke's capability to accurately determine STC parameters and both static and dynamic temperature coefficients, showing excellent agreement with manufacturer specifications and independent laboratory measurements. A key finding is Shaalke's precise mapping of the irradiance dependence of module efficiency, filling a significant gap left by typical datasheet values which often only provide data at 1000 and 200 W/m². Furthermore, the tool enables reliable power degradation analysis, identifying modules that exceed manufacturer-tolerated limits. Shaalke provides a comprehensive, data-driven platform for understanding real-world module performance, offering invaluable insights for system design, operation, and quality assurance, thereby bridging the gap between laboratory specifications and field performance. Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-48763 SN - 3-936338-93-0 SN - 2196-100X SP - 020183-001 EP - 020183-006 PB - WIP CY - München ER - TY - JOUR A1 - Böhm, Leonard A1 - Cieluch, Maximilian A1 - Kazamer, Norbert A1 - Wirkert, Florian Josef A1 - Marginean, Gabriela A1 - Apfel, Ulf-Peter A1 - Brodmann, Michael T1 - Electrodeposition of Mo-Rich NiMo Catalysts: Effect of Deposition Parameters and Oxygen Content on the Alkaline Hydrogen Evolution Reaction Activity JF - ChemElectroChem N2 - Electrodeposited Mo-rich NiMo catalysts offer enhanced catalytic activity for the alkaline hydrogen evolution reaction (HER) and provide an electrically conductive, binder-free substrate connection, making them promising catalysts for green hydrogen production. However, creating Mo-rich deposits is challenging, as the codeposition process typically favors Ni. Optimal deposition conditions for Mo-rich NiMo catalysts remain insufficiently explored. This article investigates Mo-rich NiMo electrodeposition from an ammonia-free citrate bath using NaSO4 as a chlorine-free support electrolyte. The effects of the deposition parameters, 1) sodium molybdate concentration in the electrolyte, 2) deposition current density, and 3) enhanced mass transport via working electrode rotation on the alkaline HER activity, were studied. The electrodeposits, containing 44–66 wt% Mo, exhibited increased surface area due to a rough, cracked morphology and variable oxygen content of the catalyst. The oxygen content was linked to HER activity, revealing an inhibiting effect. The lowest overpotential of 118 mV at −10  mA cm−2 for the alkaline HER was achieved using an electrolyte with 0.02 mol L−1 sodium molybdate, a deposition current density of 600 mA cm−2, without electrode rotation. Respective samples combined a favorable Ni:Mo ratio comprising 56 wt% Mo content with increased surface area and low oxygen content. Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-48327 VL - 2025 PB - Wiley-VCH ER - TY - RPRT A1 - Löffler, Markus Jan ED - Direktorium des Westfälischen Energieinstituts, T1 - Dynamische Stromtarife zur Regelung der EE-Versorgung - Eine Analyse am Beispiel des Stromverbrauchs im Jahr 2024 N2 - Die vorliegende Studie untersucht die Auswirkungen dynamischer Stromtarife auf das Stromverbrauchsverhalten und die Gesamtstromkosten in Deutschland im Jahr 2024. Gemäß §41 EnWG sollen dynamische Stromtarife den Stromverbrauch an das wetterabhängige Angebot erneuerbarer Energien (EE) anpassen. Die Studie analysiert 243 Szenarien eines preisgesteuerten Stromverbrauchs, wobei verschiedene Parameter wie das EE-Stromangebot, der minimale Strombörsenpreis und die Verschiebungsperiode des Stromverbrauchs variiert werden. Die Ergebnisse zeigen, dass eine kostenoptimierende Anpassung des Stromverbrauchs nur mit zusätzlichen Kurzzeitspeichern umsetzbar ist, um inakzeptable Verwerfungen im Tagesablauf der Stromverbraucher zu vermeiden. Die Berechnungen verdeutlichen, dass dynamische Stromtarife unter den Bedingungen des Jahres 2024 keine wesentlichen systemischen Vorteile bieten und erhebliche technische und finanzielle Zusatzaufwände erfordern. Die Studie schließt mit der Feststellung, dass die Einführung dynamischer Stromtarife neue Geschäftsmodelle und psychologische Effekte auf die Verbraucher haben könnte, jedoch auch eine neue Form der Stromrationierung darstellt. T3 - Schriftenreihe des Westfälischen Energieinstituts - 1 KW - Dynamische Stromtarife KW - Erneuerbare Energien KW - Stromverbrauchsverhalten KW - Kostenoptimierung KW - Kurzzeitspeicher KW - Stromrationierung Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-48094 SN - 3053-3007 (eISSN) ER - TY - RPRT A1 - Löffler, Markus Jan T1 - Dynamische Stromtarife zur Regelung EE-versorgten Stromverbrauchs : eine Analyse am Beispiel des Stromverbrauchs im Jahr 2024 N2 - Zusammenfassung Anlass dieser Studie ist die verpflichtende Einführung dynamischer Stromtarife gemäß §41 EnWG. Hierdurch soll ein Paradigmenwechsel im Hinblick auf den Stromverbrauch bewirkt werden: Der Stromverbrauch soll sich künftig bestmöglich an das überwiegend wettergeführte Stromangebot der Erneuerbare-Energien-Quellen anpassen, statt dass sich das Stromangebot wie bisher am Strombedarf orientiert. Die Studie untersucht, inwieweit dynamische Stromtarife das Stromverbraucher-Verhalten und die Gesamtstromkosten des Jahres 2024 hätten beeinflussen können, wenn diese bereits 2024 deutschlandweit genutzt worden wären. Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-48063 ET - Version 1.2 ER - TY - CHAP A1 - Fieberg, Christian ED - Casties, Manfred ED - Boiting, Bernd T1 - Building Information Modeling (BIM) BT - Band 2: Anwendungen T2 - Handbuch der Klimatechnik Y1 - 2024 SN - 978-3-8007-5859-3 SP - 763 EP - 778 PB - VDE Verlag GmbH CY - Berlin, Offenbach ER - TY - JOUR A1 - Kazamer, Norbert A1 - Tack, Meike A1 - Spree, Mathias A1 - Underberg, Martin A1 - Rost, Ulrich A1 - Reichenberger, Sven A1 - Cieluch, Maximilian A1 - Salih, Haujin A1 - Wirkert, Florian Josef A1 - Böhm, Leonard A1 - Roth, Jeffrey A1 - Nallathambi, Varatharaja A1 - Gault, Baptiste A1 - Baer, Christoph A1 - Orend, Kerstin A1 - Barcikowski, Stephan A1 - Hülser, Tim A1 - Brodmann, Michael T1 - Ultrasonically Deposited Boron-Doped Silicon Decorated with Laser-Generated Iridium Nanoparticles as Manufacturing Approach for OER Electrodes in PEM Water Electrolysis JF - Advanced Materials Interfaces N2 - The study introduces flexible and scalable manufacturing approach for electrodes utilizing boron-doped silicon as conductive support for iridium nanoparticles, addressing the challenges of cost and scarcity associated with noble catalysts for oxygen evolution reaction (OER). Colloidal Ir nanoparticles are synthesized via pulsed-laser ablation (≈4–7 nm) and decorated on B-doped Si (≈100 nm) through electrostatic adsorption. Titanium substrates are ultrasonically sprayed with Si:B – Ir and Ir nanoparticles with very low iridium loading of 12 wt.%. Crystalline Ir phases (Ir(111), Ir(200)) are observed and known to enhance the OER mechanism. Additionally, atom probe tomography confirms that the Si support particles contained 0.03-0.5 at.% of boron throughout the entire particle, while electrical permittivity and through-plane measurements reveal a positive impact of B-doped Si on the electrical conductivity of the nanocatalysts and of the ultralow-loaded catalyst coated Ti substrates (0.12 mgIr cm−2), respectively. Rotating disk electrode results show pronounced oxidation peaks for decorated Ir nanoparticles. The Si:B-Ir 4 nm catalyst exhibits the highest turnover frequency (2.62 s−1) and a competitive electrochemical surface area (25 m2 gIr−1) compared to Si:B-Ir 7 nm (0.96 s−1; 37.5 m2 gIr−1) and Ir black (0.24 s−1; 5 m2 gIr−1). The overall analysis of the parameters highlights a performant catalytic efficiency, through balancing activity and reaction kinetics effectively. KW - PEM Water Electrolysis KW - OER Electrodes Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-46883 VL - 2025 IS - Volume 12, Issue 8 PB - Wiley ER - TY - JOUR A1 - Laband, Dana Laureen A1 - Esken, Henning A1 - Pollerberg, Clemens A1 - Joemann, Michael A1 - Doetsch, Christian T1 - Analysis of the Potential for Thermal Flexibility of Cooling Applications JF - Energies N2 - The feed-in of electricity from renewable energies, such as wind or solar power, fluctuates based on weather conditions. This unpredictability due to volatile feed-in can lead to sudden changes in energy generation so that solutions ensuring grid stability need to be implemented. The cooling sector offers the opportunity to create flexibilities for such balancing, with this study focusing on the thermal flexibilities that can be provided by cooling applications. Various cooling-demand profiles are investigated with respect to their load profile and their impact on flexibility is analysed. In addition to the cooling demand, scenarios of different storage dimensions are considered. As a result, it shows that an increasing base-load level and increasing operating-load duration have a negative effect on flexibility, while an increasing full-load duration is beneficial for flexibility. Storage size also has a strong impact as higher storage capacity and storage performance indicate higher flexibility, whereas above a certain size they only provide little added value. KW - flexibility KW - load management KW - cooling application KW - cooling-load profile Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-47285 VL - 2024 IS - 17(8), Artikel Nr. 4685 PB - MDPI ER -