The European Physical Journal Applied Physics最新文献_第8页

Pyroelectric Generators to Harvest Energy from Disc Brake Pads for Wireless Sensors in Electric Vehicles 从电动汽车的无线传感器盘式刹车片收集能量的热释电发电机

The European Physical Journal Applied Physics Pub Date : 2022-10-12 DOI: 10.1051/epjap/2022220093

Y. Tabbai, Aboubakr Sarah, A. Rjafallah, A. Alaoui-Belghiti, A. Hajjaji, R. El moznine, F. Belhora, A. El Ballouti

{"title":"Pyroelectric Generators to Harvest Energy from Disc Brake Pads for Wireless Sensors in Electric Vehicles","authors":"Y. Tabbai, Aboubakr Sarah, A. Rjafallah, A. Alaoui-Belghiti, A. Hajjaji, R. El moznine, F. Belhora, A. El Ballouti","doi":"10.1051/epjap/2022220093","DOIUrl":"https://doi.org/10.1051/epjap/2022220093","url":null,"abstract":"There is a large amount of thermal energy wasted during the driving cycle of all kinds of vehicles. In this paper, a pyroelectric harvester system, based on temperature change, is designed for low-powered sensors for a reliable Electronic/Electric architecture development of autonomous vehicles. For this proposed approach, three main elements are required: Pyroelectric energy harvest module, energy conversion module and power storage module. The energy harvest module includes a pyroelectric material, which captures the temperature of the braking system, and harvests the wasted heat energy during the contact process. In the energy conversion module, the temperature variation through the pyroelectric material generates electricity, given the cooling phenomena with the ambient air. The energy potentially available in the form of heat produced by the friction involved in braking was evaluated using finite element analysis on the Multiphysics software environment. Therefore, we present stimulations of disc heating and cooling during the braking process at different speeds. Moreover, the potential for energy recovery in multiple rolling conditions is discussed, such as the braking cycles and the effect of the material thickness, used in the conversion module. The proposed system has undergone simulation analysis, which shows that the system can generate a voltage of 10.8 V and a power of 7.0 mW for a cycle of one braking process and around 9.5 mW for a cycle containing two successive braking. This result illustrates the feasibility of energy-autonomous applications in low-power sensors for new vehicle generations.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123019114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improvement of the piezoelectric, thermal, structural properties of PMMA/PVdF-HFP blend composite films using PZT PZT改善PMMA/PVdF-HFP共混复合薄膜的压电、热、结构性能

The European Physical Journal Applied Physics Pub Date : 2022-10-10 DOI: 10.1051/epjap/2022220112

Salesabil Labihi, K. Oumghar, N. Chakhchaoui, A. Eddiai, M. Meddad, O. Cherkaoui, M. El Achaby, M. Mazroui

{"title":"Improvement of the piezoelectric, thermal, structural properties of PMMA/PVdF-HFP blend composite films using PZT","authors":"Salesabil Labihi, K. Oumghar, N. Chakhchaoui, A. Eddiai, M. Meddad, O. Cherkaoui, M. El Achaby, M. Mazroui","doi":"10.1051/epjap/2022220112","DOIUrl":"https://doi.org/10.1051/epjap/2022220112","url":null,"abstract":"Energy harvesting is the most efficient way to meet energy demand while also supplying renewable energy sources from the environment. This technology consists of the recovery of electrical energy from lost energy sources, which are available everywhere, including heat, fluids, vibrations, etc. In particular, energy harvesting via piezoelectric materials, which are capable of converting the energy of vibrations and mechanical deformations into electrical energy, has been the subject of research in the last decade. This energy is used in a variety of applications, including energy collectors, sensors, and actuators, among others. In this paper, a series of thin polymers ﬁlms based on Poly (methyl methacrylate) (PMMA), Poly(vinylidene ﬂuoride-co-hexaﬂuoropropylene) (PVdF-HFP), and Lead zirconate titanate (PZT) nanoparticles were prepared using solvent casting technique in Tetrahydrofuran (THF) solvent with different percentages of PVdF-HFP and PZT, to improve piezoelectric properties of PMMA. Improvement in piezoelectric properties has confirmed by Polarized Optical Microscope (POM), Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectrometry (FTIR),X-ray diffraction (XRD) ,Thermogravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC), and Tensile testing. The nanocomposite films that were prepared can be used for energy storage and harvesting.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133556293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Curling behavior of free-standing nanofilms driven by surface stress: core-shell model 表面应力驱动的独立纳米膜卷曲行为:核-壳模型

The European Physical Journal Applied Physics Pub Date : 2022-09-29 DOI: 10.1051/epjap/2022220185

Jiangang Li, Xiaoxia Lei, Jianhua Ding, Zhixiang Gao, Hua Wang

引用次数: 1

Simulation and Optimization of a RO/EV Pilot Reverse Osmosis Desalination Plant powered by PV Solar Energy: The Application to Brackish Water at low concentration. 光伏太阳能RO/EV中试反渗透海水淡化装置的模拟与优化:在低浓度微咸水中的应用

The European Physical Journal Applied Physics Pub Date : 2022-09-28 DOI: 10.1051/epjap/2022220109

A. Lilane, D. Saifaoui, S. Ettami, M. Chouiekh, Y. Aroussy

引用次数: 0

Energy harvesting using a dynamic weighing system based on piezoelectric materials 基于压电材料的动态称重系统能量收集

The European Physical Journal Applied Physics Pub Date : 2022-09-20 DOI: 10.1051/epjap/2022220100

Najoua Fangachi, Ikram Najihi, M. Yessari, A. Hajjaji

引用次数: 1

Effect of the RF-power and annealing on the structural, optical, morphological and electrical properties of RF-sputtered V2O5 thin films 射频功率和退火对射频溅射V2O5薄膜结构、光学、形态学和电学性能的影响

The European Physical Journal Applied Physics Pub Date : 2022-09-16 DOI: 10.1051/epjap/2022220081

M. Bousseta, L. Nkhaili, A. Narjis, A. El kissani, A. Tchenka, A. Outzourhit

{"title":"Effect of the RF-power and annealing on the structural, optical, morphological and electrical properties of RF-sputtered V2O5 thin films","authors":"M. Bousseta, L. Nkhaili, A. Narjis, A. El kissani, A. Tchenka, A. Outzourhit","doi":"10.1051/epjap/2022220081","DOIUrl":"https://doi.org/10.1051/epjap/2022220081","url":null,"abstract":"Thin films of vanadium oxide were deposited on glass substrates by the radio frequency reactive \u0000sputtering from a high purity metallic vanadium target (99.7%) with a diameter of 10 cm. The \u0000reactive sputtering was carried out in an argon-oxygen gas mixture containing 10% of O2 and \u000090% of Ar. The films were deposited at different RF powers (150 W, 200 W, 250 W and 300 \u0000W) for a fixed deposition time of 150 min. X-ray diffractograms showed that the deposited thin \u0000films crystallized in an orthorhombic V2O5 phase. It was found that the crystallite size varies \u0000with the RF power and is maximized using 300W as a RF power. Scanning Electron \u0000Microscopy and Raman scattering analyzes have confirmed the formation of V2O5 thin films. \u0000In addition, optical transmittance measurements were performed using a Shimadzu UV-PC \u0000spectrophotometer in the 200–3200 nm range. It was observed that the optical band gap of the \u0000films decreases with increasing the RF power. Electrical resistivity was found to decrease by \u0000increasing the RF power from 150 to 250 W, then it increases","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"235 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122708752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Micro- and nano-sized materials for solar evaporators：a review 太阳能蒸发器用微纳米材料研究进展

The European Physical Journal Applied Physics Pub Date : 2022-09-16 DOI: 10.1051/epjap/2022220179

Jialun Li, Fei Yu, Bin Cai, Liying Wang, Xijia Yang, Wei Lü

引用次数: 0

High efficiency microwave shielding films based on carbon fibre and ITO/Ag/Fe2O3 hybrid polymer composites 基于碳纤维和ITO/Ag/Fe2O3杂化聚合物复合材料的高效微波屏蔽膜

The European Physical Journal Applied Physics Pub Date : 2022-09-15 DOI: 10.1051/epjap/2022220164

Tahar Merizgui, B. Gaoui, A. Hadjadj, M. Kious

{"title":"High efficiency microwave shielding films based on carbon fibre and ITO/Ag/Fe2O3 hybrid polymer composites","authors":"Tahar Merizgui, B. Gaoui, A. Hadjadj, M. Kious","doi":"10.1051/epjap/2022220164","DOIUrl":"https://doi.org/10.1051/epjap/2022220164","url":null,"abstract":"Hybrid polymer composites represent a new class of materials that have unique combination of magnetic, electrical, dielectric, and mechanical properties, which are applicable for funnel of electromagnetic (EM) noises. In this study, we present a process for scalable composition of Silane grafted epoxy composites through adding Carbon fibre (CF)/Iron (III) oxide (Fe2O3)/ indium tin oxide (ITO) Nano particles and a designed grid of appropriately sized metal streaks along E-glass fiber (eGF), and report on the electromagnetic interference shielding effectiveness (EMI SE) with mechanical properties of composites. The examined ribbon shield detect a good total EMI SE of SET (~ 78 dB) at a different thickness of 2-2.5 and 3 mm in the 'E, F, I, and J' band frequency. In an analogous fashion, the reinforcement grid approach relies on the periodic sizing to manage the equilibrium between incoming wave from outside world and shielding efficiency of proposed composites. We provide a solution by creating a new concept of a hybrid shield, whose SE can be varied in situ depending on the EM context due to the used high filler content, whose SE can dynamically and institute be modified via the concept of reinforcement.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129839362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Recent advances in bulk-heterojunction solar cells: A Review 体异质结太阳能电池研究进展综述

The European Physical Journal Applied Physics Pub Date : 2022-09-13 DOI: 10.1051/epjap/2022220113

Ankush Sharma, D. Pathak, Davinder Pal Sharma, J. Nunzi

引用次数: 3

Validation using the IN-VIVO experiment of the 3D model of the human ear using the equivalent mechanical impedance of the mass-spring-damper system. 利用质量-弹簧-阻尼器系统等效机械阻抗对人耳三维模型进行体内实验验证。

The European Physical Journal Applied Physics Pub Date : 2022-09-07 DOI: 10.1051/epjap/2022220170

S. Assif, A. Faiz, Chahbi Aziz, Penpen Komgue L. B, A. Hajjaji

{"title":"Validation using the IN-VIVO experiment of the 3D model of the human ear using the equivalent mechanical impedance of the mass-spring-damper system.","authors":"S. Assif, A. Faiz, Chahbi Aziz, Penpen Komgue L. B, A. Hajjaji","doi":"10.1051/epjap/2022220170","DOIUrl":"https://doi.org/10.1051/epjap/2022220170","url":null,"abstract":"The ear is the organ responsible for the perception of hearing. Its role is to amplify, transmit and convert an acoustic wave present in the environment into an electrical pulse that can be interpreted by the brain using the auditory nerve. There are different types of hearing loss, such as conductive hearing loss, sensorineural hearing loss, or mixed hearing loss, which is a combination of the first two. Conductive deafness, the type we are interested in this work, is related to a dysfunction of the middle ear, leading to an interruption of the progression of the sound wave within the hearing organ. This type of deafness is caused by impulse noise which is found in a large number of professional environments. The objective of this research is the creation of a 3D model of the human ear in order to characterize these noises to evaluate the auditory risks they induce in professional environment, to identify the means to protect oneself as well as possible. This 3D model of the human ear was developed using the Comsol Multiphysics software. The structure-acoustic interaction between the ear canal as a propagation field of the acoustic wave and the ear structures consisting of skin, cartilage, bone and tympanic membrane was solved using finite element analysis (FEA). We modeled the ossicular chain, the middle ear cavity and the cochlea by the equivalent mechanical impedance of a mass-spring-damper system. The results obtained show that the maximum displacements of the umbo are obtained in the frequency range of [1.7, 2.6] kHz, the sound pressure gain had the shape of a peak with a maximum at a frequency of 3 kHz. The displacement of the umbo depends on the damping coefficient d. The sound pressure at the tympanic membrane was increased compared to that at the entrance of the ear canal. These results were validated by the experimental results using the IN-VIVO experiment.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"259 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128999454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0