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Advanced Elastocaloric Cooling Devices Based on Shape Memory Alloy Films

Advanced Elastocaloric Cooling Devices Based on Shape Memory Alloy Films
Author: Brüderlin, Florian
Publisher: KIT Scientific Publishing
Total Pages: 292
Release: 2022-11-15
Genre: Technology & Engineering
ISBN: 3731510650

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Elastocaloric cooling is an emerging solid-state cooling technology with the potential to provide environmentally friendly, efficient cooling. The elastocaloric effect in superelastic shape memory alloy films is used to develop advanced cooling devices for small-scale applications. Cascaded and parallelized devices are developed to increase device temperature span and cooling capacity. The concepts are proven experimentally, a maximum temperature span of 27° C is achieved in a cascaded device.


Innovative micro-NMR/MRI functionality utilizing flexible electronics and control systems

Innovative micro-NMR/MRI functionality utilizing flexible electronics and control systems
Author: Nassar, Omar
Publisher: KIT Scientific Publishing
Total Pages: 278
Release: 2023-08-15
Genre:
ISBN: 3731511762

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The advantages offered by the flexible electronics and control systems technologies were utilized for tackling the challenges facing two crucial Magnetic Resonance (MR) applications. The first application is in the field of interventional Magnetic Resonance Imaging (MRI), and the other application is in the field of Nuclear Magnetic Resonance spectroscopy (NMR).


In Situ Characterization and Modelling of Drying Dynamics for Scalable Printing of Hybrid Perovskite Photovoltaics

In Situ Characterization and Modelling of Drying Dynamics for Scalable Printing of Hybrid Perovskite Photovoltaics
Author: Ternes, Simon
Publisher: KIT Scientific Publishing
Total Pages: 302
Release: 2023-03-27
Genre: Technology & Engineering
ISBN: 3731512556

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Hybrid perovskite photovoltaics could play a vital role in future’s renewable energy production. However, there are still severe challenges when scaling the technology. In this work, perovskite solution films drying in laminar and slot-jet air flows are investigated extensively by optical in situ characterization. The main results are a quantitative model of perovskite drying dynamics and a novel in situ imaging technique – yielding valuable predictions for large-scale perovskite fabrication.


Power Generation by Resonant Self-Actuation

Power Generation by Resonant Self-Actuation
Author: Joseph, Joel
Publisher: KIT Scientific Publishing
Total Pages: 288
Release: 2023-12-28
Genre:
ISBN: 3731513277

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Die Forschung im Bereich der Mikro-Energiegewinnungssysteme wurde durch den Bedarf an autarken, stabilen Energiequellen für vernetzte drahtlose Sensoren vorangetrieben. Abwärme, insbesondere bei Temperaturen unter 200 °C, stellt eine vielversprechende, aber mit den derzeitigen Umwandlungstechnologien schwer zu gewinnende Energiequelle dar. - Research into micro energy harvesting systems has been driven by the need for self-sustaining, stable power sources for interconnected wireless sensors. Waste heat, particularly at temperatures below 200 °C, presents a promising but challenging energy source to recover using current conversion technology.


Advanced Multicomponent Alloys

Advanced Multicomponent Alloys
Author: Zengbao Jiao
Publisher: Springer Nature
Total Pages: 302
Release: 2022-09-19
Genre: Technology & Engineering
ISBN: 9811947430

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This book integrates aspects of computational materials science, physical metallurgy, alloy design, structure-properties relationships, and applications of advanced multicomponent alloys. It can serve as a textbook for courses on advanced structural and functional materials for undergraduate and graduate students. Notably, the book compiles cutting-edge research on the progress of materials science of multicomponent alloys from fundamentals to engineering applications. It can be of considerable interest for researchers and scientists in the field of materials science and engineering, mechanical engineering, and metallurgy engineering. In addition, this book not only summarizes the compositions, properties, and applications of various types of multicomponent alloys but also presents a complete idea on the efficient design of materials and processes to satisfy targeted performance in materials and structures. Thus, it can also be used as a reference book for engineers and researchers in industries.


Toward Analysis of a Cooling Device Using Shape Memory Alloys

Toward Analysis of a Cooling Device Using Shape Memory Alloys
Author: Mehran Najib
Publisher:
Total Pages: 51
Release: 2016
Genre: Nickel-titanium alloys
ISBN:

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To counter global warming and ozone layer depletion, in recent times a lot of alternative refrigeration methods have been proposed. Elastocaloric effect, a solid state cooling technology, is one of the most recent and potential ones to phase-out traditional vapor compression cooling systems. In this work, an elastocaloric system based on superelastic Nickel-Titanium has been proposed. A proven mathematical material model has been used to predict various design parameters for such a system. The heat transfer characteristics of the model have been modified to accommodate the use of water as the heat transfer fluid. The effect of strain rate on achieving the elastocaloric effect is also been explored. Finally, performance parameters of the system are calculated and compared to the conventional systems.


Magnetocaloric Energy Conversion

Magnetocaloric Energy Conversion
Author: Andrej Kitanovski
Publisher: Springer
Total Pages: 471
Release: 2014-12-03
Genre: Technology & Engineering
ISBN: 331908741X

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This book provides the latest research on a new alternative form of technology, the magnetocaloric energy conversion. This area of research concerns magnetic refrigeration and cooling, magnetic heat pumping and magnetic power generation. The book’s systematic approach offers the theoretical basis of magnetocaloric energy conversion and its various sub domains and this is supported with the practical examples. Besides these fundamentals, the book also introduces potential solutions to engineering problems in magnetocalorics and to alternative technologies of solid state energy conversion. The aim of the book is therefore to provide engineers with the most up-to-date information and also to facilitate the understanding, design and construction of future magnetocaloric energy conversion devices. The magnetocaloric energy conversion represents an alternative to compressor based refrigerators and heat pumps. It is a serious alternative to power generation with low enthalpy heat sources. This green technology offers an opportunity to use environmentally friendly solid refrigerants and the potentially high energy efficiency follows the trends of future energy conversion devices. This book is intended for postgraduate students and researchers of refrigeration, heat pumping, power generation alternatives, heat regenerators and advanced heat transfer mechanisms.


Shape Memory Materials

Shape Memory Materials
Author: K. Otsuka
Publisher: Cambridge University Press
Total Pages: 304
Release: 1999-10-07
Genre: Psychology
ISBN: 9780521663847

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A comprehensive account of shape memory materials, now available in paperback.


The Magnetocaloric Effect and its Applications

The Magnetocaloric Effect and its Applications
Author: A.M. Tishin
Publisher: CRC Press
Total Pages: 489
Release: 2016-04-19
Genre: Science
ISBN: 1420033379

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The magnetocaloric effect describes the change in temperature of a magnetic material under adiabatic conditions through the application or removal of an external magnetic field. This effect is particularly pronounced at temperatures and fields corresponding to magnetic phase transitions, and it is a powerful and widely used tool for investigating t