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Plus Energy Buildings:A Numerical Case Study

Fluid Dynamics & Materials Processing 2023年第1期19卷 117-134页

作者： Abed Hawila Hala Alsalloum Abdelatif Merabtine Farouk Fardoun Rachid Bennacer EPF School of Engineering Rosieres-Prés-TroyesFrance Faculty of Engineering Lebanese UniversityHadathLebanon Centre Scientifique et Technique du Batiment Health and Comfort DepartmentSaint-Martin-D’HèresFrance Doctoral School of Science and Technologies Lebanese UniversityHadathLebanon Faculty of Technology Department GIMLebanese UniversitySaidaLebanon lmps Paris Saclay UniversityParisFrance

The feasibility of Plus Energy Building for a sample relevant case is *** a literature review aimed to identify key aspects of this type of buildings,a preliminary evaluation of the thermal performance of a building constructed using conventional material is presented together with a parametric analysis of the impact of typical influential *** domestic hot water(SDHW)and photovoltaic systems(PV)are considered in the *** simulations indicate that for the examined sample case(Beirut in Lebanon)the total annual energy need of conventional building is 87.1 kWh/y.m^(2).About 49%of energy savings can be achieved by improving the building envelope and installing energy efficient ***,about 90%of energy savings in domestic hot water production can be achieved by installing a SDHW system composed of two solar collectors connected in ***,the addition of a grid connected PV array system can significantly mitigate the energy needs of the building leading to an annual excess of energy.

关键词： Plus energy building building performance simulation parametric analysis energy-efficient design solar energy

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Foreword International Conference on Materials and Energy(ICOME 2021)

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Fluid Dynamics & Materials Processing 2023年第8期19卷 2131-2146页

作者： El Ganaoui Mohammed Bennacer Rachid Fassi-Fehri Omar Benyoussef Abdelilah Petrissans Mathieu Universitéde Lorraine-Institut Henri Poincaréde Longwy(IUT) LongwyFrance UniversitéParis-Saclay ENS Paris-SaclayCNRSLMPSGif-sur-YvetteFrance Académie Hassan II des Sciences et Techniques RabatMorocco Universitéde Lorraine-Institut Hubert Curien d’Epinal(IUT) EpinalFrance

The International Conference on Materials and Energy(ICOME)was held in Metz on June 2021 following the earlier successful conferences of the same series held in Tunisia in 2019,Spain in 2018,China in 2017,France in 2016 and Morocco in *** 2021 event should be regarded as a late realization of the ICOME 2020 conferences,which had to be delayed due to the pandemic.A significant number of papers presented in the framework of this conference have been selected for publication in the Fluid Dynamics and Material Processing international peer reviewed Journal given the relevance of the treated subjects to the aims and scope of this journal and the high quality of these *** foreword provides a critical review of the 2021 conference aims in relation to its potential impact on the fields of Materials and Energy and related societal benefits.

关键词： Energy materials processes

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Enhanced composite thermal conductivity by percolated networks of in-situ confined-grown carbon nanotubes

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Nano Research 2023年第11期16卷 12821-12829页

作者： Xiao Zhang Wei Tan Tian Carey Bo Wen Delong He Adrees Arbab Alex Groombridge Fiona Smail Jean de La Verpilliere Chengning Yao Yanchun Wang Xiaojun Wei Huaping Liu Sishen Xie Felice Torrisi Michael De Volder Weiya Zhou Adam Boies Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Department of Engineering University of CambridgeCambridge CB21PZUK Cambridge Graphene Centre Engineering DepartmentUniversity of CambridgeCambridge CB30FAUK UniversitéParis-Saclay Centrale-SupélecENS Paris-SaclayCNRSLMPS-Laboratoire de Mécanique Paris-Saclay91190Gif-sur-YvetteFrance Echion Technologies Cambridge CB223FGUK Molecular Sciences Research Hub Imperial College LondonLondon W120BZUK Dipartimento di Fisica e Astronomia Universita'di CataniaCatania 6495123Italy School of Engineering and Materials Science Queen Mary University of LondonLondon E14NSUK School of Physics CRANN&AMBER Research CentresTrinity College DublinDublin D02 E8C0Ireland Jaguar Land Rover Banbury Road GaydonLighthorne HeathWarwick CV350RRUK

Despite the ever-increasing demand of nanofillers for thermal enhancement of polymer composites with higher thermal conductivity and irregular geometry,nanomaterials like carbon nanotubes(CNTs)have been constrained by the nonuniform dispersion and difficulty in constructing effective three-dimensional(3D)conduction network with low loading and desired isotropic or anisotropic(specific preferred heat conduction)***,we illustrated the in-situ construction of CNT based 3D heat conduction networks with different directional ***,to in-situ construct an isotropic percolated conduction network,with spherical cores as support materials,we developed a confined-growth technique for CNT-core sea urchin(CNTSU)*** 21.0 wt.%CNTSU loading,the thermal conductivity of composites reached 1.43±0.13 W/(m·K).Secondly,with aligned hexagonal boron nitride(hBN)as an anisotropic support,we constructed CNT-hBN aligned networks by in-situ CNT growth,which improved the utilization efficiency of high density hBN and reduced the thermal interface resistance between matrix and ***~8.5 wt.%loading,the composites possess thermal conductivity up to 0.86±0.14 W/(m·K),374%of that for neat *** to the uniformity of CNTs in hBN network,the synergistic thermal enhancement from one-dimensional(1D)+two-dimensional(2D)hybrid materials becomes more *** on the detailed experimental evidence,the importance of purposeful production of a uniformly interconnected heat conduction 3D network with desired directional performance can be observed,particularly compared with the traditional direct-mixing *** study opens new possibilities for the preparation of high-power-density electronics packaging and interfacial materials when both directional thermal performance and complex composite geometry are simultaneously required.

关键词： carbon nanotubes hexagonal boron nitride thermal conductivity composites three-dimensional printing

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