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Computer Simulation of Passive Cooling of Wooden House Covered by Phase Change Material

Hana Charvátová, Aleš Procházka, Martin Zálešák
2020 Energies  
Under studied conditions, the coverage of a wall opposite the window best eliminated extremes of the air temperature inside the house.  ...  A model of a house without the PCM coverage was compared with models of houses in which the PCM was located on all walls, except a floor, and on a wall opposite the window.  ...  A more detailed comparison of the effect of the PCM coverage on the temperature of the air inside the house is shown in Figure 5 .  ... 
doi:10.3390/en13226065 fatcat:l2zibwj4zvhd7mdusicas2wxta

Parallel Multiphysics Simulation of Package Systems Using an Efficient Domain Decomposition Method

Weijie Wang, Yannan Liu, Zhenguo Zhao, Haijing Zhou
2021 Electronics  
The multi-level parallelism of the algorithm was also obtained based on an in-house developed parallel infrastructure.  ...  An efficient domain decomposition method was developed to accelerate the multiphysics loops of electromagnetic–thermal stress simulations by considering the fact that the electromagnetic field perturbations  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/electronics10020158 fatcat:jcpz5qjmbzfrjbqpro7buupi5q

Dimensional analysis and surrogate models for the thermal modeling of Multiphysics systems

Florian Sanchez, Marc Budinger, Ion Hazyuk
2017 Applied Thermal Engineering  
ABSTRACT This paper presents an original form of surrogate models and the associated construction procedure adapted to the thermal modeling of Multiphysics systems.  ...  Dimensional analysis and surrogate models for the thermal modeling of Multiphysics systems. Applied Thermal Engineering, Elsevier, 2017, 110 (3), pp.  ...  design of Multiphysics systems.  ... 
doi:10.1016/j.applthermaleng.2016.08.117 fatcat:2jejnyijmbeohma5y224n2vz2u

Numerical Study of Trombe Wall as a Passive Ventilation System: The Case of Moroccan Climate

Youssef Hamidi, Bouchra El Gharbi, Hajar Hafs, Mustapha Malhaa, Abdellah Bah
2019 2019 7th International Renewable and Sustainable Energy Conference (IRSEC)  
To that aim, a mathematical model describing the thermal performance of the studied wall system was used, and then by means of COMSOL Multiphysics software, a parametric study of a single room with four  ...  Out-In In-Out Out-Out In-In p p T C C u T q Q t          , q k T    / (0.3 Pr ID-26 CFD model COMSOL Multiphysics model was used in which heat transfer and fluid flow physics were coupled  ... 
doi:10.1109/irsec48032.2019.9078162 fatcat:zdiq5wr5lfg7lktnuljwq6upfm

Radial Magnetic Bearings for Rotor–Shaft Support in Electric Jet Engine

Krzysztof Falkowski, Paulina Kurnyta-Mazurek, Tomasz Szolc, Maciej Henzel
2022 Energies  
Next, a comparison of the theoretical studies using Comsol Multiphysics software and its experimental verification are described.  ...  These new concepts consider the possibility of using electrical machines both as starters and generators, as well as suspension systems for the turbine shafts of aircraft engines.  ...  The Magnetic Isolation node defines the boundary conditions of the magnetic model.  ... 
doi:10.3390/en15093339 fatcat:c3jwicwoyfe23pg6r2d6g42v7e

Non-Uniformity of the Indoor Radon Concentration under a Convective Mixing Mechanism

Sergey Spotar, Nurlan Ibrayev, Aigerim Uyzbayeva, Jamil Atabayev
2018 International Journal of Environmental Research and Public Health  
The COMSOL Multiphysics® 5.3 software package has been employed for solving coupled momentum and species transport problems together with pseudo-reaction term modeling of the radon radioactive decay process  ...  The impact of factors such as wind velocity, air tightness, and incoming radon flux were taken into consideration.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/ijerph15122826 fatcat:uv24vtap3vflxbtxj7slxgoncq

Temperature calculation for linear induction motor in transport application with multiphysics approach

F N Sarapulov, V Goman, G E Trekin
2020 IOP Conference Series: Materials Science and Engineering  
The housings have been installed around the frontal parts, forming the channels which are ensuring the circulation of a cooling air through the frontal parts and half-filled slots.  ...  core (or back iron) according to the established detailing of the model in longitudinal coordinate; subsystem of the coolant velocity calculation in the channels ('Hyd.  ... 
doi:10.1088/1757-899x/966/1/012105 fatcat:rlyenu3vu5bkpkhnsqo7t4ncae

Comparison of Multi-Physical Coupling Analysis of a Balanced Armature Receiver between the Lumped Parameter Method and the Finite Element/Boundary Element Method

Yuan-Wu Jiang, Dan-Ping Xu, Zhi-Xiong Jiang, Jun-Hyung Kim, Sang-Moon Hwang
2019 Applied Sciences  
The three domains were modeled using the lumped parameter method (LPM) that takes advantage of an equivalent circuit.  ...  The balanced armature receiver (BAR) is a product based on multiphysics that enables coupling between the electromagnetic, mechanical, and acoustic domains.  ...  RA, RH are the reluctance of the armature and magnet house. FM, Ag, N and D are the magnetomotive force of the magnet, the area of the magnet, the coil turns, and the air gap width respectively.  ... 
doi:10.3390/app9050839 fatcat:axrgjtegzved7fujxiy5vu76zy

Thermal Simulations of a New SiC Detector Design for Neutron Measurements in JSI Nuclear Research Reactor

Valentin Valero, Laurent Ottaviani, Abdallah Lyoussi, Vladimir Radulović, Luka Snoj, Adrien Volte, Michel Carette, Christelle Reynard Carette
2022 Materials Science Forum  
The influence of various parameters is presented such as that of the housing material nature, the gas nature around the diode, the gas-gap height and the housing thickness.  ...  research reactor conditions (integral neutron flux ~2.0 x1013 n·cm‑2·s-1 leading to a nuclear heating rate of 0.25 W·g-1 in Tungsten).  ...  In the future, a more detailed 3D model with the SiC detector in the triangular dry air channel of the Jožef Stefan Institute TRIGA Mark II reactor will be carried out.  ... 
doi:10.4028/p-7aduas fatcat:lq2l5b4xdrfn7dgwiyhuev6pum

Experimental Performance And Numerical Simulation Of Double Glass Wall

Thana Ananacha
2014 Zenodo  
The coupled governing equations as well as boundary conditions are solved using the finite element method (FEM) via COMSOLTM Multiphysics.  ...  Conclusively, the model considered in this study could reasonable be used simulate the thermal and ventilation performance of the DCGW and DTGW configurations.  ...  SIMULATION MODEL To simulate the thermal performance of double glass wall we used commercial software, COMSOL TM Multiphysics. The analytical model is shown in Fig. 3 (a) .  ... 
doi:10.5281/zenodo.1097407 fatcat:rnon4naadze2lgekfigjrvy7ju

Electromagnetic and Semiconductor Modeling of Scanning Microwave Microscopy Setups

Arif Can Gungor, Malgorzata Celuch, Jasmin Smajic, Marzena Olszewska-Placha, Juerg Leuthold
2020 IEEE Journal on Multiscale and Multiphysics Computational Techniques  
For the validation purposes of electromagnetic solvers, the numerical modeling was based on both the time domain FEM (TD-FEM) and FDTD.  ...  This paper presents finite difference time domain (FDTD) and finite element method (FEM) based electromagnetic modeling and simulation of an industrial scanning microwave microscopy (SMM) material measurement  ...  of multiphysics modeling of any semiconductor structure has not been reported before, to the best knowledge of the authors.  ... 
doi:10.1109/jmmct.2020.3027908 fatcat:kpfcgoeqz5empji7k2bmbmvmtm

Numerical Simulation of Innovative Air Capture Systems Based on Bladeless Technology with Coandă effect

Maurizio Carlini, Andrea Mennuni, Mirko Rotondo, Stefano Morelli
2022 Journal of Fluid Flow Heat and Mass Transfer  
The new technology is based on the Coandă effect applied on two innovative air capture systems of hood model.  ...  This work focuses on the feasibility study of a new suction hood model that allows the complete disposal of the fumes produced during cooking.  ...  inside the housing structure [6] - [9] .  ... 
doi:10.11159/jffhmt.2022.001 fatcat:f4v5y6u7rndbjdadfgpuwfbrom

Multiphysical tolerance analysis – Assessment technique of the impact of the model parameter imprecision

Jean-Yves Dantan, Tobias Eifler, Lazhar Homri
2020 Procedia CIRP  
Acknowledgements The authors would like to acknowledge the French higher education ministry and the Arts et Métiers foundation for their financial support under the sabbatical year of Prof.  ...  The used geometrical model of this external gear pump was detailed in Erreur !  ...  The assemblability condition describes the essential condition for the existence of gaps that ensure the assembly of the components in the presence of part deviations: PA = Proba(Ci(fns(X,G)) ≤ 0) (2)  ... 
doi:10.1016/j.procir.2020.05.192 fatcat:pwjpway6lfcudds677avkha6qe

Analysis of the roof of an autonomous house for efficient use of wind energy

A. Bekbaev, K. Shakenov, V. Titkov
2018 EAI Endorsed Transactions on Energy Web  
The elements of the wind power plant and the roof of the autonomous house are transformed into a finite element model for aerodynamic calculation.  ...  In the calculations used various versions of the autonomous house roof to find the optimal conditions for increasing the energy efficiency factor of the energy carrier.  ...  This model is built in the interface "Geometry" of the software of engineering analysis COMSOL Multiphysics.  ... 
doi:10.4108/eai.12-9-2018.155859 fatcat:6szbihhlf5eorohvsqqfqq6uqu

Towards Accurate Prediction of Unbalance Response, Oil Whirl and Oil Whip of Flexible Rotors Supported by Hydrodynamic Bearings

Rob Eling, Mathys te Wierik, Ron van Ostayen, Daniel Rixen
2016 Lubricants  
in bearing housing 2.9e −2 m k air Thermal conductivity of air 2.8e −2 W mK ν air Kinematic viscosity of air 17e −6 m 2 s k bh Thermal conductivity bearing housing 44 W mK c p_oil  ...  in bearing housing 1.14e −2 m k air Thermal conductivity of air 2.8e −2 W mK ν air Kinematic viscosity of air 17e −6 m 2 s k bh Thermal conductivity bearing housing 201 W mK c p_oil  ... 
doi:10.3390/lubricants4030033 fatcat:jpq5ftwylfbyvam6mdpencrrei
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