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Inhalt: Chem. Ing. Tech. 10/2024 Contents: Chem.Ing. Tech.10/2024
IF 1.5 4区 工程技术 Q3 ENGINEERING, CHEMICAL Pub Date : 2024-09-27 DOI: 10.1002/cite.202471002
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引用次数: 0
Apparate in herausfordernden Anwendungsfeldern 具有挑战性应用领域的设备
IF 1.5 4区 工程技术 Q3 ENGINEERING, CHEMICAL Pub Date : 2024-09-27 DOI: 10.1002/cite.202400119
Prof. Dr.-Ing. Stephan Scholl

Verfahrenstechnische Apparate realisieren einen Prozess in einer konkreten Anwendungsumgebung. Oft sind dabei problematische Stoffsysteme zu prozessieren oder Betriebsbedingungen zu beherrschen, die besondere Herausforderungen an das verfahrenstechnische Design und den Betrieb der Apparate stellen. Beispiele sind schäumende Systeme in Verdampfungs- oder Desorptionsprozessen, Mulmbildung in Extraktoren, Tropfenmitriss aus Verdampfern, Flashbehältern oder an Kolonnenzuläufen oder Fouling, d. h. die unerwünschte Belagbildung auf wärme- und/oder stoffübertragenden Oberflächen. Für alle diese Phänomene gilt die Strategie Vermeiden – Vermindern – Beherrschen. Um dafür geeignete prozesstechnische, apparative oder betriebliche Maßnahmen zu testen und zu bewerten, sind einheitliche experimentelle Methoden erforderlich, die es erlauben, die Schaumneigung oder die Foulinganfälligkeit eines Stoffsystems, eines Apparates oder einer Betriebsweise unter definierten Bedingungen reproduzierbar zu quantifizieren. Erst dann können potentielle Abhilfemaßnahmen verlässlich bewertet und qualifiziert werden. Das vom Bundesministerium für Wirtschaft und Klimaschutz über den Projektträger Jülich geförderte Verbundprojekt „Entwicklung einer standardisierten Methodik für Design und Bewertung von Apparaten und Equipment in foulinggefährdeten Trennprozessen – SAMARA“ hat eine solche Methodik für Kristallisations- und organisches Fouling an metallischen und polymeren Wärmeübertragungsoberflächen sowie in Kolonnenpackungen entwickelt. Als Ergebnis stehen Standardapparaturen für Kolonnen und Wärmeübertrager sowie eine standardisierte Vorgehensweise mit empfohlenen Modellstoffsystemen zur Verfügung, die eine reproduzierbare Quantifizierung der Foulinganfälligkeit von Stoffsystemen oder Apparate- bzw. Equipmentausführungen erlauben. Die Standardisierung von Bewertungsmethoden erlaubt die Setzung von reproduzierbaren Referenzpunkten und unterstützt damit die Innovation und Einsatz neuer, besserer Produkte und Prozesse. Zur Unterstützung des Transfers dieser Ergebnisse liegt eine neue VDI-Richtlinie im Entwurf vor, die demnächst der interessierten Fachöffentlichkeit zur Kommentierung vorgelegt werden wird. Weitere Arbeiten in diesem Heft befassen sich mit Gestrickabscheidern zur Tropfenabscheidung sowie Verdampfung und Kondensation an komplexen Strukturen. Ich wünsche Ihnen Freude und die eine oder andere Inspiration bei der Lektüre der Beiträge.

工艺工程设备在特定的应用环境中实现工艺。这通常涉及处理有问题的材料系统或控制操作条件,给工艺工程设计和设备操作带来特殊挑战。例如,蒸发或解吸过程中的起泡系统,萃取器中浮渣的形成,蒸发器、闪蒸罐或塔入口处的液滴夹带,或污垢,即在热量和/或物质传递表面形成的不良沉积物。对于所有这些现象,都应采取避免 - 减少 - 控制的策略。为了测试和评估合适的工艺工程、设备或操作措施,需要采用标准化的实验方法,以便在规定的条件下对材料系统、设备或操作模式的泡沫倾向或污垢易感性进行可重复的量化。只有这样,才能对潜在的补救措施进行可靠的评估和鉴定。由联邦经济事务和气候保护部通过项目赞助商尤里希资助的联合项目 "为易结垢分离过程中的仪器和设备的设计与评估开发标准化方法 - SAMARA "已经开发出了这样一种方法,用于分析金属和聚合物传热表面以及柱填料上的结晶和有机污垢。这样,就有了用于塔和热交换器的标准装置以及带有推荐模型材料系统的标准化程序,从而可以对材料系统或装置或设备设计的污垢易感性进行可重复的量化。评估方法的标准化可以设定可重复的参考点,从而支持创新和使用更好的新产品和新工艺。为了支持这些成果的转化,我们已经起草了一份新的 VDI 指南,并将很快提交给相关专家征求意见。本期的其他论文涉及用于液滴分离的针织网状分离器以及复杂结构上的蒸发和冷凝。希望您喜欢阅读这些文章,并从中得到启发。
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引用次数: 0
Herausragende Leistungen in der Chemie: Die GDCh-Preise im Herbst (Teil 2) 化学领域的杰出成就:秋季 GDCh 奖项(第二部分)
IF 1.5 4区 工程技术 Q3 ENGINEERING, CHEMICAL Pub Date : 2024-09-27 DOI: 10.1002/cite.202471003

Bereits in der letzten Ausgabe haben wir einige Wissenschaftler vorgestellt, die im Herbst von der Gesellschaft Deutscher Chemiker (GDCh) für ihre herausragenden Leistungen ausgezeichnet wurden. Im Folgenden präsentieren wir weitere Preisträgerinnen und Preisträger, die im Herbst von der GDCh geehrt wurden.

在上一期中,我们介绍了德国化学学会 (GDCh) 在秋季表彰的一些取得杰出成就的科学家。接下来,我们将介绍更多在秋季获得德国化学学会表彰的获奖者。
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引用次数: 0
Titelbild Chem. Ing. Tech. 10/2024 封面图片 Chem.Ing. Tech.10/2024
IF 1.5 4区 工程技术 Q3 ENGINEERING, CHEMICAL Pub Date : 2024-09-27 DOI: 10.1002/cite.202471001

Copyright: Chitsanupong @AdobeStock

版权所有:Chitsanupong @AdobeStock
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引用次数: 0
Überblick Inhalt: Chem. Eng. Technol. 10/2024 概述 内容:Chem.10/2024
IF 1.5 4区 工程技术 Q3 ENGINEERING, CHEMICAL Pub Date : 2024-09-27 DOI: 10.1002/cite.202471004
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引用次数: 0
Usability and User Experience Challenges of Cross Reality Laboratories Experienced by Creators 创作者在跨现实实验室中遇到的可用性和用户体验挑战
IF 1.9 4区 工程技术 Q3 ENGINEERING, CHEMICAL Pub Date : 2024-09-13 DOI: 10.1002/cite.202400060
Louis Kobras, Marcus Soll, Franziska Herrmann, Annette Bock
Cross reality laboratories are widely used in education, yet research on the usability/user experience (UX) of these laboratories is still lacking. This study wants to start the discussion about challenges for usability/UX by interviewing practitioners from a large project for cross reality laboratories spanning multiple institutes in Germany. A total of 18 challenges were discovered, together with three target groups, namely, developers, maintainers, and learners. In addition, the tension between developers and usability is discussed. Open questions include the need to conduct further research with different target groups and how to increase usability for laboratory developers.
跨现实实验室在教育领域得到了广泛应用,但有关这些实验室的可用性/用户体验(UX)的研究却仍然缺乏。本研究希望通过采访德国多个机构的跨现实实验室大型项目的从业人员,开始讨论可用性/用户体验所面临的挑战。共发现了 18 项挑战,以及三个目标群体,即开发者、维护者和学习者。此外,还讨论了开发人员与可用性之间的矛盾。有待解决的问题包括:是否有必要针对不同的目标群体开展进一步研究,以及如何提高实验室开发人员的可用性。
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引用次数: 0
Virtual Engineering: Hands‐on Integration of Product Lifecycle Management, Computer‐Aided Design, eXtended Reality, and Artificial Intelligence in Engineering Education 虚拟工程:产品生命周期管理、计算机辅助设计、扩展现实和人工智能在工程教育中的实践整合
IF 1.9 4区 工程技术 Q3 ENGINEERING, CHEMICAL Pub Date : 2024-09-09 DOI: 10.1002/cite.202300169
Jakob Bönsch, Lucas Greif, Svenja Hauck, Simon Kreuzwieser, Anjela Mayer, Felix Longge Michels, Jivka Ovtcharova
Engineering education at the Institute for Information Management in Engineering integrates product lifecycle management (PLM), computer‐aided design (CAD), eXtended reality (XR), and artificial intelligence (AI) to enhance learning and prepare students for modern challenges. Our interdisciplinary approach, emphasizing digital twins and virtual twins, fosters immersive, hands‐on experiences. This paper reviews our strategies, comparing them with global initiatives, highlighting the transformative impact of our curriculum on preparing future engineers for complex industrial environments.
工程信息管理学院的工程教育整合了产品生命周期管理 (PLM)、计算机辅助设计 (CAD)、扩展现实 (XR) 和人工智能 (AI),以增强学习效果,让学生为应对现代挑战做好准备。我们的跨学科方法强调数字孪生和虚拟孪生,促进身临其境的实践体验。本文回顾了我们的策略,并将其与全球倡议进行了比较,强调了我们的课程对培养未来工程师适应复杂工业环境的变革性影响。
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引用次数: 0
Industry 4.0‐Driven STEM‐Lab Modernization: Balancing Flexibility and Sustainability 工业 4.0 驱动的 STEM 实验室现代化:平衡灵活性与可持续性
IF 1.9 4区 工程技术 Q3 ENGINEERING, CHEMICAL Pub Date : 2024-09-05 DOI: 10.1002/cite.202300236
Ines Aubel, Stefan Krinke, Robert Mende, André Dietrich, Martin Bertau, Henning Zeidler, Sebastian Zug
The rapid technological advances of Industry 4.0 require Science, Technology, Engineering, Mathematics (STEM) education to adapt and meet the needs of an increasingly digital workforce. However, institutions face significant obstacles in updating their lab spaces due to the significant investment of time and resources required. This article presents innovative approaches that aim to reconcile these conflicting goals. Flexible laboratory configuration approaches are described that can be implemented in diverse learning scenarios to optimize the sustainable use of resources in an educational context. The results suggest that, with strategic planning, adaptable STEM laboratory configurations are beneficial for education in the context of Industry 4.0.
工业 4.0 技术的飞速发展要求科学、技术、工程和数学(STEM)教育进行调整,以满足日益数字化的劳动力需求。然而,由于需要投入大量时间和资源,各院校在更新实验室空间方面面临着巨大障碍。本文介绍了旨在协调这些相互冲突的目标的创新方法。文章介绍了灵活的实验室配置方法,这些方法可以在不同的学习场景中实施,以优化教育资源的可持续利用。研究结果表明,通过战略规划,可调整的 STEM 实验室配置有利于工业 4.0 背景下的教育。
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引用次数: 0
Experimental Demonstration of the Production of Hydrogen and Water‐Free Formaldehyde Using Sodium Vapor 利用钠蒸汽生产氢气和无水甲醛的实验演示
IF 1.9 4区 工程技术 Q3 ENGINEERING, CHEMICAL Pub Date : 2024-08-30 DOI: 10.1002/cite.202400007
Marta Kamienowska, Max Philipp Deutschmann, Michael Bender, Leonid Stoppel, Markus Daubner, Thomas Wetzel, Klarissa Niedermeier
Conventional routes for the production of formaldehyde rely on the use of methanol and air, with the presence of catalysts such as silver or mixed‐metal oxides. These processes are highly energy intensive and therefore raise concerns in terms of cost‐effectiveness and environmental impact. In that respect, sodium or sodium compounds are more favorable as catalysts for the direct dehydrogenation of methanol to water‐free formaldehyde. A method is presented for the coproduction of hydrogen and anhydrous formaldehyde – both valuable products – on the laboratory scale, with a particular focus on the design and testing of a sodium vapor catalyst dosing unit that enables the process to be performed continuously.
传统的甲醛生产工艺依赖于甲醇和空气以及银或混合金属氧化物等催化剂。这些工艺的能耗很高,因此在成本效益和环境影响方面令人担忧。在这方面,钠或钠化合物作为甲醇直接脱氢生成无水甲醛的催化剂更为有利。本文介绍了一种在实验室规模上共同生产氢气和无水甲醛(这两种都是有价值的产品)的方法,尤其侧重于钠蒸气催化剂计量装置的设计和测试,该装置可使工艺连续进行。
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引用次数: 0
Industry 4.0 Ready: Transforming STEM Laboratory Courses – Continuous Distillation as Example 工业 4.0 就绪:改造 STEM 实验课程--以连续蒸馏为例
IF 1.9 4区 工程技术 Q3 ENGINEERING, CHEMICAL Pub Date : 2024-08-28 DOI: 10.1002/cite.202300233
Katja Götze, Doreen Kaiser, Ines Aubel, Volker Herdegen, Martin Bertau
Laboratory courses are key to science, technology, engineering, and mathematics (STEM) programs in higher education, but often lack the flexibility for distance learning and inclusiveness for all students. To address these challenges, TU Bergakademie Freiberg introduced remote laboratories not only for international degree programs and the “Disti4Study” application, which provides interactive visualization of industrial thermal separation processes. This paper focuses on the development and didactic challenges associated with the “Continuous Distillation Laboratory”. It illustrates how rethinking the technical and didactic frameworks of traditional laboratories can align with new learning objectives, such as those related to Industry 4.0, including the Internet of Things and data management.
实验室课程是高等教育中科学、技术、工程和数学(STEM)课程的关键,但往往缺乏远程学习的灵活性和对所有学生的包容性。为了应对这些挑战,弗莱堡工业大学不仅为国际学位课程引入了远程实验室,还引入了 "Disti4Study "应用程序,该应用程序提供了工业热分离过程的交互式可视化。本文重点介绍与 "连续蒸馏实验室 "相关的开发和教学挑战。它说明了如何重新思考传统实验室的技术和教学框架,使其与新的学习目标(如与工业 4.0 相关的目标,包括物联网和数据管理)保持一致。
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引用次数: 0
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Chemie Ingenieur Technik
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