Academic literature on the topic 'Electrocaloric refrigeration'
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Journal articles on the topic "Electrocaloric refrigeration":
Barr, J. A., T. Nishimatsu, and S. P. Beckman. "Computational modeling the electrocaloric effect for solid-state refrigeration." MRS Proceedings 1543 (2013): 39–42. http://dx.doi.org/10.1557/opl.2013.920.
Kumar, Raju, Ashish Kumar, and Satyendra Singh. "Large electrocaloric response and energy storage study in environmentally friendly (1 − x)K0.5Na0.5NbO3–xLaNbO3 nanocrystalline ceramics." Sustainable Energy & Fuels 2, no. 12 (2018): 2698–704. http://dx.doi.org/10.1039/c8se00276b.
Aprea, C., A. Greco, A. Maiorino, and C. Masselli. "Electrocaloric refrigeration: an innovative, emerging, eco-friendly refrigeration technique." Journal of Physics: Conference Series 796 (January 2017): 012019. http://dx.doi.org/10.1088/1742-6596/796/1/012019.
Ou, Yun, Chihou Lei, and Dongliang Shan. "Electrocaloric Effect in Different Oriented BaZr0.15Ti0.85O3 Single Crystals." Materials 15, no. 19 (October 10, 2022): 7018. http://dx.doi.org/10.3390/ma15197018.
Guo, Mengyao, Ming Wu, Weiwei Gao, Buwei Sun, and Xiaojie Lou. "Giant negative electrocaloric effect in antiferroelectric PbZrO3 thin films in an ultra-low temperature range." Journal of Materials Chemistry C 7, no. 3 (2019): 617–21. http://dx.doi.org/10.1039/c8tc05108a.
Lu, Sheng-Guo, and Qiming Zhang. "Electrocaloric Materials for Solid-State Refrigeration." Advanced Materials 21, no. 19 (May 18, 2009): 1983–87. http://dx.doi.org/10.1002/adma.200802902.
Peng, Biaolin, Qi Zhang, Bai Gang, Glenn J. T. Leighton, Christopher Shaw, Steven J. Milne, Bingsuo Zou, Wenhong Sun, Haitao Huang, and Zhonglin Wang. "Phase-transition induced giant negative electrocaloric effect in a lead-free relaxor ferroelectric thin film." Energy & Environmental Science 12, no. 5 (2019): 1708–17. http://dx.doi.org/10.1039/c9ee00269c.
Hirasawa, Shigeki, Tsuyoshi Kawanami, and Katsuaki Shirai. "Electrocaloric Refrigeration using Multi-Layers of Electrocaloric Material Films and Thermal Switches." Heat Transfer Engineering 39, no. 12 (September 13, 2017): 1091–99. http://dx.doi.org/10.1080/01457632.2017.1358490.
Suchaneck, G., and G. Gerlach. "Materials and device concepts for electrocaloric refrigeration." Physica Scripta 90, no. 9 (August 13, 2015): 094020. http://dx.doi.org/10.1088/0031-8949/90/9/094020.
Du, Hongliang, Yunfei Chang, Chunwang Li, Qingyuan Hu, Jing Pang, Yuan Sun, Florian Weyland, Nikola Novak, and Li Jin. "Ultrahigh room temperature electrocaloric response in lead-free bulk ceramicsviatape casting." Journal of Materials Chemistry C 7, no. 23 (2019): 6860–66. http://dx.doi.org/10.1039/c9tc01407a.
Dissertations / Theses on the topic "Electrocaloric refrigeration":
Guo, Dongzhi. "Design, Analysis, Modeling and Testing of a Micro-scale Refrigeration System." Research Showcase @ CMU, 2014. http://repository.cmu.edu/dissertations/450.
Mezzourh, Hanane. "Étude et élaboration de matériaux ferroélectriques sans plomb sous forme de céramiques et films minces pour le stockage de l'énergie électrique et le refroidissement électrocalorique." Electronic Thesis or Diss., Amiens, 2022. http://www.theses.fr/2022AMIE0044.
Energy issues have taken on considerable importance in our daily lives. They have to address the dual issue of the expanding energy demand as well as environmental and ecological concerns. Although, fossil fuels have undeniable advantages, their drawbacks are constantly driving the search for alternative solutions. In this regard, eco-friendly and effective materials are always being investigated for the development of energy storage capacitors and electrocaloric (EC) refrigeration devices. Additionally, the context of miniaturization requires the fabrication of smaller and smaller material sizes, ranging from ceramics to dense and continuous (2D) thin films to nanostructured (1D) thin films exhibiting hierarchical structures. The goal of this thesis is to understand how the dimensionality, architecture, geometry, and grain orientation of the ceramics and thin films intend to enhance the electrocaloric effect and stored energy density of these materials. By using two synthesis techniques: sol-gel (SG) and electrospinning (ES), we first synthesized BCZT ceramics (BCZT-SG and BCZT-ES) which underwent a sintering time optimization process. Then, the bulk ceramics were subjected to studies in order to evaluate how the synthesis technique and sintering time influenced the dielectric, electrocaloric, and energy-storage properties of BCZT ceramics. The physico-chemical characterisations revealed that on the one hand, BCZT ceramics sintered for 6h had improved microstructural, dielectric, electrocaloric and energy storage properties, on the other hand, the ceramics prepared by the electrospinning method (BCZT-ES) are more efficient than those prepared by the sol-gel process (BCZT-ES) which could be attributed to the fineness of the grains of the BCZT-ES powders and to the significant ratio of the coexisting tetragonal (T) and orthorhombic (O) phases in ceramics.. Indeed, the BCZT-ES-6h ceramic showed an interesting recovered energy density of 233.69 mJ/cm3 and a high energy efficiency of 72.17% at E = 40 kV/cm, around the ferroelectric-paraelectric transition. Thus, this ceramic shows an electrocaloric coefficient reaching high value of ζ ≈ 0.523 K.mm/kV. Instead of using ceramic, using BCZT thin layers produced using the sol-gel process coupled with the spin coating technique, allowed us to apply higher electric fields, which promoted interesting energy storage properties. For these BCZT thin films, experimental parameters (binder, mode and temperature annealing) were optimized. the BCZT-850 film crystallises in a pure perovskite phase with relatively dense granular microstructure. It exhibits a high value of Wr = 1.211 J/cm3 with an interesting energy efficiency of 72.31% at an applied field of 372 kV/cm. In addition, a hydrothermal synthesis of vertically aligned (1D) nanostructured BaTiO3 (BT) films was conducted to better understand the effect of grain shape and orientation on the dielectric properties of thin films. The optimal conditions for the synthesis of these types of films were established by a methodical analysis of the various hydrothermal synthesis parameters. A 1D BaTiO3 lattice with nanorods preferentially aligned along the c-axis exhibiting a high aspect ratio of ≈ 9.27, and a very high dielectric constant of ≈ 16539 were produced by using the optimal parameters
Liu, Yang. "Multicaloric effect in ferroic materials." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLC041/document.
Solid-state caloric materials, which undergo an adiabatic temperature change or isothermal entropy change when some external stimulus (electric field, magnetic field, stress and pressure) is applied or withdrawn, are promising for solid-state refrigeration, as an alternative to hazardous gases used in conventional cooling devices invented a hundred years ago. Given that the highly refined vapor-compression refrigeration systems asymptotically approach their theoretical efficiency limit in addition to the concern on environment, there has been a recent upsurge in worldwide search for new refrigeration solution which is economical and environmentally friendly. The most prominent calorics are ferroically ordered materials (ferroelectric, ferroelastic and ferromagnetic/antiferromagentic) that often exhibit giant caloric effects near their ferroic transitions. In this thesis, we present our theoretical and experimental results on electrocaloric effect, elastocaloric effect, barocaloric effect and magnetocaloric effect in different ferroic materials. Our findings show that all these caloric effects may appear promising with low environmental impact. We address ferroelectrics emerging as ideal materials which permit both giant elastocaloric, electrocaloric and barocaloric responses near room temperature. For the first time, we find a large negative electrocaloric effect in antiferroelectric thin films and we propose a new mechanism to understand the caloric response in antiferroics including antiferroelectric and antiferromagentic. In addition, for the first time using Infra-red camera we carry out spatially-resolved measurement on electrocaloric effect in multilayer capacitors, one of the most studied systems which are regarded as the most promising electrocaloric prototype. Our findings provide the first direct experimental evidence on the electrocaloric heat flux both temporally and spatially in a specific electrocaloric device. Moreover, for the first time, we design a multicaloric refrigeration cycle combining electrocaloric effect with elastocaloric/magentocaloric effects bridged by ferroelectric materials. We realized such mutlicaloric cycle to solve a real and longstanding problem, i.e., a large hysteresis that impeded reversibility in an otherwise promising magnetocaloric material FeRh discovered almost 26 years ago. We hope that this thesis will not only provide a useful background to fundamentally understand the solid-state caloric effect in ferroics and what we are really measuring, but also may act as a practical guide to exploit and develop ferrocalorics towards design of suitable devices
Book chapters on the topic "Electrocaloric refrigeration":
Kehileche, Brahim, Younes Chiba, and Abdelhalim Tlemçani. "Thermal Investigation of an Electrocaloric Refrigeration Systems." In Advances in Green Energies and Materials Technology, 409–16. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0378-5_53.
Kehileche, B., Y. Chiba, N. Henini, and A. Tlemçani. "The Use of Nanofluids in Electrocaloric Refrigeration Systems." In Lecture Notes in Networks and Systems, 590–97. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-37207-1_63.
Brahim, Kehileche, Chiba Younes, Henini Noureddine, Tlemçani Abdelhalim, and Mimene Bakhti. "A Comparison Between Parallel Plates and Packed Bed in Electrocaloric Refrigerator Based on Hydrogen Liquefier." In Renewable Energy for Smart and Sustainable Cities, 483–90. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-04789-4_51.
Suchaneck, Gunnar, Oleg Pakhomov, and Gerald Gerlach. "Electrocaloric Cooling." In Refrigeration. InTech, 2017. http://dx.doi.org/10.5772/intechopen.68599.
Dunce, M., and E. Birks. "Negative electrocaloric effect and its use for solid-state refrigeration." In The Electrocaloric Effect, 93–107. Elsevier, 2023. http://dx.doi.org/10.1016/b978-0-12-821647-7.00005-0.
Conference papers on the topic "Electrocaloric refrigeration":
Brahim, Kehileche, Chiba Younes, Henini Noureddine, and Tlemcani Abdelhalim. "Electrocaloric Refrigeration near Room Temperature." In 2018 International Conference on Applied Smart Systems (ICASS). IEEE, 2018. http://dx.doi.org/10.1109/icass.2018.8651992.
Guo, Dongzhi, Jinsheng Gao, Ying-Ju Yu, Suresh Santhanam, Gary K. Fedder, Alan J. H. McGaughey, Shi-Chune Yao, and Andrew Slippey. "Design of a Fluid-Based Micro-Scale Electrocaloric Refrigeration System." In ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ht2013-17396.
Sun, Zhimin, Qing-Ming Wang, and William S. Slaughter. "The Solid-State Electrocaloric Refrigeration With Unimorph Beam and its Analytical Model." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-88634.
Schmidt, Marvin, Johannes Ullrich, André Wieczorek, Jan Frenzel, Andreas Schütze, Gunther Eggeler, and Stefan Seelecke. "Elastocaloric Cooling With Ni-Ti Based Alloys: Material Characterization and Process Variation." In ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/smasis2015-8944.
Hirasawa, Shigeki, Tatsuya Nakamu, Tsuyoshi Kawanami, and Katsuaki Shirai. "Study on Periodic Thermal-Switching Behavior of Flat Heat Pipe." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-50158.
Hehlen, Markus P., Alexander H. Mueller, Nina R. Weisse-Bernstein, and Richard I. Epstein. "Electrocaloric refrigerator using electrohydrodynamic flows in dielectric fluids." In SPIE OPTO, edited by Richard I. Epstein, Denis V. Seletskiy, and Mansoor Sheik-Bahae. SPIE, 2013. http://dx.doi.org/10.1117/12.2004009.
Kordizadeh, Fatemeh, Shiva Mohajerani, Keyvan Safaei, Nasrin Taheri Andani, Mohammad Pourshams, Mohammad Javad Abdollahzadeh, and Mohammad Elahinia. "Investigating Elastocaloric Effect of NiTi Shape Memory Alloy Fabricated by Laser Powder Bed Fusion Technique." In SMST 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.smst2024p0039.
Gu, Haiming, Xinyu Li, S. G. Lu, Minren Lin, Xiaoshi Qian, J. P. Cheng, Q. M. Zhang, Ailan Cheng, and Brent Craven. "Compact Cooling Devices Based on Giant Electrocaloric Effect Dielectrics." In ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer Meeting and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ht2012-58128.