Defect and Diffusion Forum Vol. 370 | p. 2

<!DOCTYPE html> <html lang="en" dir="ltr"> <head> <meta name="format-detection" content="telephone=no"> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="description" content="This special topic volume  of Defect and Diffusion Forum covers in a wider sense diffusion related phenomena. One of the most important challenges of modern society is the efficient, secure and sustainable generation and conversion of energy. This topics spans from the application of classical fossil fuels (e.g. oil and coal based) to natural gas and more alternative approaches which are based on bio fuels, solar energy and wave energy conversion. In the same way important are the connected topics of reusing waste thermal energy as well as the opposite need of cooling. A further topic which requires a similar skill set and which is covered in this topical volume is related to the manufacturing (e.g. furnaces), modification (e.g. heat treatment) and processing (thermal cutting) of materials." /> <link rel="canonical" href="https://www.scientific.net/DDF.370/2" /> <meta property="og:title" content="Defect and Diffusion Forum Vol. 370 | p. 2 | Scientific.Net" /> <meta property="og:type" content="website" /> <meta property="og:url" content="https://www.scientific.net/DDF.370/2" /> <meta property="og:image" content="/Content/app/scinet5/images/metadata_logo.png" /> <meta property="og:image:type" content="image/png" /> <meta property="og:image:width" content="261" /> <meta property="og:image:height" content="260" /> <meta property="og:image:alt" content="Scientific.Net Logo" /> <title>Defect and Diffusion Forum Vol. 370 | p. 2 | Scientific.Net</title> <link href="/Content/app/scinet5/images/favicon.ico" rel="shortcut icon" /> <link href="/Content/public.min.css?v=BKBihgCkUm340JBGsNjEPtWz8I22CUsubMPC3V1WYzw" rel="stylesheet" /> <link rel="preconnect" href="https://www.google-analytics.com"> <link rel="preconnect" href="https://www.gstatic.com"> <link rel="preconnect" href="https://www.googletagmanager.com"> <link rel="icon" href="/Content/app/scinet5/images/favicon.ico"> <link rel="apple-touch-icon" href="/Content/app/scinet5/images/apple-touch-icon.png"> <link rel="preconnect" href="https://fonts.googleapis.com"> <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin> <link href="https://fonts.googleapis.com/css?family=Open+Sans+Condensed:300,700%7COpen+Sans:300i,400,400i,600,600i,700&display=swap" rel="stylesheet">    <script> (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-T3VDKWV');</script>  </head> <body> <noscript>  <iframe src="https://www.googletagmanager.com/ns.html?id=GTM-T3VDKWV" height="0" width="0" style="display:none;visibility:hidden"></iframe> </noscript> <div class="sc-content-container"> <div class="sc-content"> <div class="header-menu-container"> <div class="identity-menu-container header-menu-container-not-logged-in"> <div class="container"> <div class="row"> <ul class="role-menu"> <li class="user-menu between normal-user-menu"> <div class="hdivider-100"></div> <div class="cart-info"> <a href="https://main.scientific.net/Payment/Cart"> <i class="inline-icon cart-icon-white"></i> <span id="cartInfoTotalItemsCount"></span> </a> </div> <div class="user-menu-login-or-register"> <a href="https://main.scientific.net/Account/Registration?ReturnUrl=https%3A%2F%2Fwww.scientific.net%2FDDF.370%2F2" rel="nofollow"> Registration </a> <a href="https://main.scientific.net/Account/Login?ReturnUrl=https%3A%2F%2Fwww.scientific.net%2FDDF.370%2F2" rel="nofollow"> Log In </a> </div> </li> </ul> </div> </div> </div> <div class="header-fluid"> <div class="container"> <div class="row"> <div class="block-header"> <div class="logo-block"> <a href="/" class="application-logo inline-icon logo-icon"></a> <div class="burger-menu-button visible-xs"> <div class="hamburger-box"> <div class="hamburger-inner"></div> </div> </div> </div> <div class="menu-and-search-block"> <div class="burger-menu"> <nav class="burger-menu-items"> <div class="public-menu"> <ul> <li><a href="/ForLibraries">For Libraries</a></li> <li><a href="/ForPublication/Paper">For Publication</a></li> <li><a href="/DocuCenter">Downloads</a></li> <li><a href="/news/all">News</a></li> <li><a href="/Home/AboutUs">About Us</a></li> <li><a href="/Home/Contacts">Contact Us</a></li> </ul> </div> </nav> </div> <div class="header-menu-top"> <div class="header-menu-list"> <a href="/ForLibraries">For Libraries</a> <a href="/ForPublication/Paper">For Publication</a> <a href="/DocuCenter">Downloads</a> <a href="/news/all">News</a> <a href="/Home/AboutUs">About Us</a> <a href="/Home/Contacts">Contact Us</a> </div> </div> <div class="search-block"> <input class="search-control" type="search" placeholder="Search" data-url="/Search"> <button class="button button-95 button-grey search-btn button-simple"> <span class="hidden-xs">Search</span> <i class="inline-icon search-icon-grey visible-xs"></i> </button> </div> </div> </div> </div> </div> </div> </div> <div class="container-fluid"> <div class="row"> <div class="banner-new"></div> </div> </div> <div class="content"> <div class="container"> <div class="row content-container"> <div class="left-content col-md-4 col-sm-5"> <div class="left-content-first-line icon-container mobile-collapse-button"> <div class="page-name-block underline-begin sibling-name-block"> <div class="page-name-block-text"> Volumes <a class="left-content-expand-button"><i class="inline-icon arrow-right-black no-hover-icon on-focus-arrow-down-black"></i></a> </div> </div> </div> <div class="row mobile-collapse-content"> <a href="/DDF.376" class="normal-large-text icon-container"> <div class="element-list"> <div class="element-list-text"> Defect and Diffusion Forum <br /> <span class="paper-volume-number">Vol. 376</span> </div> <div class="element-list-arrow"> <i class="inline-icon arrow-right-black no-focus-icon on-hover-arrow-left-red"></i> </div> </div> </a> <a href="/DDF.375" class="normal-large-text icon-container"> <div class="element-list"> <div class="element-list-text"> Defect and Diffusion Forum <br /> <span class="paper-volume-number">Vol. 375</span> </div> <div class="element-list-arrow"> <i class="inline-icon arrow-right-black no-focus-icon on-hover-arrow-left-red"></i> </div> </div> </a> <a href="/DDF.374" class="normal-large-text icon-container"> <div class="element-list"> <div class="element-list-text"> Defect and Diffusion Forum <br /> <span class="paper-volume-number">Vol. 374</span> </div> <div class="element-list-arrow"> <i class="inline-icon arrow-right-black no-focus-icon on-hover-arrow-left-red"></i> </div> </div> </a> <a href="/DDF.373" class="normal-large-text icon-container"> <div class="element-list"> <div class="element-list-text"> Defect and Diffusion Forum <br /> <span class="paper-volume-number">Vol. 373</span> </div> <div class="element-list-arrow"> <i class="inline-icon arrow-right-black no-focus-icon on-hover-arrow-left-red"></i> </div> </div> </a> <a href="/DDF.372" class="normal-large-text icon-container"> <div class="element-list"> <div class="element-list-text"> Defect and Diffusion Forum <br /> <span class="paper-volume-number">Vol. 372</span> </div> <div class="element-list-arrow"> <i class="inline-icon arrow-right-black no-focus-icon on-hover-arrow-left-red"></i> </div> </div> </a> <a href="/DDF.371" class="normal-large-text icon-container"> <div class="element-list"> <div class="element-list-text"> Defect and Diffusion Forum <br /> <span class="paper-volume-number">Vol. 371</span> </div> <div class="element-list-arrow"> <i class="inline-icon arrow-right-black no-focus-icon on-hover-arrow-left-red"></i> </div> </div> </a> <a href="/DDF.370" class="normal-large-text icon-container active-element active"> <div class="element-list"> <div class="element-list-text"> Defect and Diffusion Forum <br /> <span class="paper-volume-number">Vol. 370</span> </div> <div class="element-list-arrow"> <i class="inline-icon arrow-right-black no-focus-icon on-hover-arrow-left-red"></i> </div> </div> </a> <a href="/DDF.369" class="normal-large-text icon-container"> <div class="element-list"> <div class="element-list-text"> Defect and Diffusion Forum <br /> <span class="paper-volume-number">Vol. 369</span> </div> <div class="element-list-arrow"> <i class="inline-icon arrow-right-black no-focus-icon on-hover-arrow-left-red"></i> </div> </div> </a> <a href="/DDF.368" class="normal-large-text icon-container"> <div class="element-list"> <div class="element-list-text"> Defect and Diffusion Forum <br /> <span class="paper-volume-number">Vol. 368</span> </div> <div class="element-list-arrow"> <i class="inline-icon arrow-right-black no-focus-icon on-hover-arrow-left-red"></i> </div> </div> </a> <a href="/DDF.367" class="normal-large-text icon-container"> <div class="element-list"> <div class="element-list-text"> Defect and Diffusion Forum <br /> <span class="paper-volume-number">Vol. 367</span> </div> <div class="element-list-arrow"> <i class="inline-icon arrow-right-black no-focus-icon on-hover-arrow-left-red"></i> </div> </div> </a> <a href="/DDF.366" class="normal-large-text icon-container"> <div class="element-list"> <div class="element-list-text"> Defect and Diffusion Forum <br /> <span class="paper-volume-number">Vol. 366</span> </div> <div class="element-list-arrow"> <i class="inline-icon arrow-right-black no-focus-icon on-hover-arrow-left-red"></i> </div> </div> </a> <a href="/DDF.365" class="normal-large-text icon-container"> <div class="element-list"> <div class="element-list-text"> Defect and Diffusion Forum <br /> <span class="paper-volume-number">Vol. 365</span> </div> <div class="element-list-arrow"> <i class="inline-icon arrow-right-black no-focus-icon on-hover-arrow-left-red"></i> </div> </div> </a> <a href="/DDF.364" class="normal-large-text icon-container"> <div class="element-list"> <div class="element-list-text"> Defect and Diffusion Forum <br /> <span class="paper-volume-number">Vol. 364</span> </div> <div class="element-list-arrow"> <i class="inline-icon arrow-right-black no-focus-icon on-hover-arrow-left-red"></i> </div> </div> </a> </div> </div> <div class="right-content col-md-8 col-sm-7 col-xs-12"> <div class="bread-crumbs hidden-xs"> <a class="bread-crumbs-first" href="/">Home</a><i class="inline-icon arrow-breadcrumbs"></i><a class="bread-crumbs-first" href="/DDF">Defect and Diffusion Forum</a><i class="inline-icon arrow-breadcrumbs"></i><span class="bread-crumbs-second">Defect and Diffusion Forum Vol. 370</span></div> <div class="page-name-block underline-begin"> <h1 class="page-name-block-text">Defect and Diffusion Forum Vol. 370</h1> </div> <div class="clearfix title-details"> <div class="papers-block-info col-lg-12"> <div class="row"> <div class="info-row-name normal-text-gray col-md-2 col-sm-3 col-xs-4"> <div class="row"> <p>DOI:</p> </div> </div> <div class="info-row-content semibold-middle-text col-md-10 col-sm-9 col-xs-8"> <div class="row"> <p><a href="https://doi.org/10.4028/www.scientific.net/DDF.370">https://doi.org/10.4028/www.scientific.net/DDF.370</a></p> </div> </div> </div> </div> <div id="titleMarcXmlLink" style="display: none" class="papers-block-info col-lg-12"> <div class="row"> <div class="info-row-name normal-text-gray col-md-2 col-sm-3 col-xs-4"> <div class="row"> <p>Export:</p> </div> </div> <div class="info-row-content semibold-middle-text col-md-10 col-sm-9 col-xs-8"> <div class="row"> <p><a href="/DDF.370/marc.xml">MARCXML</a></p> </div> </div> </div> </div> <div class="papers-block-info col-lg-12"> <div class="row"> <div class="info-row-name normal-text-gray col-md-2 col-sm-3 col-xs-4"> <div class="row"> <p>ToC:</p> </div> </div> <div class="info-row-content semibold-middle-text col-md-10 col-sm-9 col-xs-8"> <div class="row"> <p><a href="/DDF.370_toc.pdf">Table of Contents</a></p> </div> </div> </div> </div> </div> <div class="volume-tabs"> </div> <div class=""> <div class="volume-papers-page"> <div class="block-search-pagination clearfix"> <div class="block-search-volume"> <input id="paper-search" type="search" placeholder="Search" maxlength="65"> </div> <div class="pagination-container"><ul class="pagination"><li class="PagedList-skipToPrevious"><a href="/DDF.370" rel="prev"><</a></li><li><a href="/DDF.370">1</a></li><li class="active"><span>2</span></li></ul></div> </div> <div class="block-volume-title normal-text-gray"> <p> Paper Title <span>Page</span> </p> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.370.103">Twice Optimized Evaporative Cooling System with Vortex Tube</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: George Stanescu </div> </div> <div id="abstractTextBlock522260" class="volume-info volume-info-text volume-info-description"> Abstract: A new configuration of a hybrid system for cooling electronics using a Vortex Tube is presented. The optimization of the geometry and functional parameters is based on the assumption that the thermal interaction between the moist air stream and the heat-generating electronic board, and the phase change of liquid water vaporization occurs simultaneously. The first step of this analysis is focused on the optimal geometry of the system, while the second step identifies the Vortex Tube regime that maximizes its coefficient of performance. The cooling below the adiabatic air saturation temperature and the increase of moisture transport explain the high performance of the new device. Our results shed some light on the practical procedure for the optimal configuration of the new system. </div> <div> <a data-readmore="{ block: '#abstractTextBlock522260', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 103 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.370.113">The Thermophysical Bases of Monitoring of the Fireproof Lining Wear in the Blast Furnace Hearth</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Andrey N. Dmitriev, M.O. Zolotykh, K. Chen, Galina Yu. Vitkina </div> </div> <div id="abstractTextBlock522261" class="volume-info volume-info-text volume-info-description"> Abstract: This paper presents a two-dimensional description of the temperature field in refractory lining of the hearth in the blast furnace. The mathematical model is based on Fourier differential heat conduction equation. Different solutions of this equation are presented and the optimal quantity and location of thermosensors in the hearth is proposed. This paper also presents a methodology to obtain the heat conductivity of refractory materials. </div> <div> <a data-readmore="{ block: '#abstractTextBlock522261', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 113 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.370.120">Numerical Analysis of the Oscillating Water Column (OWC) Wave Energy Converter (WEC) Considering Different Incident Wave Height</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Mateus das Neves Gomes, Eduardo Alves Amado, Elizaldo Domingues dos Santos, Liércio André Isoldi, Luiz Alberto Oliveira Rocha </div> </div> <div id="abstractTextBlock522262" class="volume-info volume-info-text volume-info-description"> Abstract: The ocean wave energy conversion into electricity has been increasingly researched in the last years. There are several proposed converters, among them the Oscillating Water Column (OWC) device has been widely studied. The present paper presents a two-dimensional numerical investigation about the fluid dynamics behavior of an OWC Wave Energy Converter (WEC) into electrical energy. The main goal of this work was to numerically analyze the optimized geometric shape obtained in previous work under incident waves with different heights. To do so, the OWC geometric shape was kept constant while the incident wave height was varied. For the numerical solution it was used the Computational Fluid Dynamic (CFD) commercial code FLUENT<sup>庐</sup>, based on the Finite Volume Method (FVM). The multiphasic Volume of Fluid (VOF) model was applied to tackle with the water-air interaction. The computational domain is represented by the OWC device coupled with the wave tank. This work allowed to check the influence of the incident wave height on the hydropneumatic power and the amplification factor of the OWC converter. It was possible to identify that the amplification factor increases as the wave period increases, thereby improving the OWC performance. It is worth to highlight that in the real phenomenon the incident waves on the OWC device have periods, lengths and height variables. </div> <div> <a data-readmore="{ block: '#abstractTextBlock522262', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 120 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.370.130">Estimate of the Wave Climate on the Most Energetic Locations of the South-Southeastern Brazilian Shelf</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Phelype Haron Oleinik, Wiliam Correa Marques, Eduardo de Paula Kirinus </div> </div> <div id="abstractTextBlock522263" class="volume-info volume-info-text volume-info-description"> Abstract: The wave energy availability has become a field of intensive research around the world. In this sense, this study aims to estimate the wave climate at the most energetic spots on the South-Southeastern Brazilian Shelf (SSBS). To achieve this goal, the sea state model TOMAWAC was used to simulate 18 years of wave conditions on the SSBS. The results showed that the sites at Santa Marta cape and Ilhabela are quite similar, with mean wave height of 1.4 m and period of 8.5 s along the climatological year. Farol island, on the other hand, showed higher averages, of 1.7 m and 8.9 s for wave height and period, respectively. The annual behavior of the wave parameters showed greater stability at Santa Marta cape and Ilhabela, and less at Farol island. The mean wave power yield at the Santa Marta cape and Ilhabela is nearly 10 kW/m and at Farol island, 15 kW/m. A wavelet analysis pointed that the most energetic events are those with periods of occurrence from 6 to 12 days, with the apex at 7 days. The wavelet analysis also showed that the most energetic spectrum is the one at Farol island, with 2.5 times the energy of the other locations at the period band of 7 days. </div> <div> <a data-readmore="{ block: '#abstractTextBlock522263', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 130 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.370.141">Evaluation of the Seasonal Pattern of Wind-Driven Waves on the South-Southeastern Brazilian Shelf</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Phelype Haron Oleinik, Wiliam Correa Marques, Eduardo de Paula Kirinus </div> </div> <div id="abstractTextBlock522264" class="volume-info volume-info-text volume-info-description"> Abstract: The focus on renewable energy sources on the last few decades has pushed studies on wave energy availability. In this sense, this study aims to determine annual characteristics of the wave climate on the South-Southeastern Brazilian Shelf (SSBS) to improve the comprehension of the Brazilian wave climate, as well as, to give an insight on the more energetic coastal spots in this area. To accomplish that, the sea state model TOMAWAC was used to simulate 18 years of wave conditions on the SSBS which were later converted to a single year, representative of the Brazilian wave climate. The results showed a strong annual pattern of steadier sea state in summer and spring and a more agitated one in autumn and winter. The results also showed that in the Santa Marta cape, the seasonal wave power oscillates between 8 and 11 kW/m, and at Ilhabela, between 7 and 11 kW/m. At the Farol island, on the other hand, the seasonal wave power varies around 11 and 19 kW/m, yielding much more energy but, at the cost of an extremely higher variation throughout the year. </div> <div> <a data-readmore="{ block: '#abstractTextBlock522264', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 141 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.370.152">Constructal Design of Double-T Shaped Cavity with Stochastic Methods Luus-Jaakola and Simulated Annealing</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Gill Velleda Gonzales, Elizaldo Domingues dos Santos, Liércio André Isoldi, Luiz Alberto Oliveira Rocha, Antônio José da Silva Neto, Wagner Rambaldi Telles </div> </div> <div id="abstractTextBlock522265" class="volume-info volume-info-text volume-info-description"> Abstract: In this paper it is proposed a comparison between two stochastic methods, Simulated Annealing and Luus-Jaakola algorithms, applied in association with Constructal Design to the geometric optimization of a heat transfer problem. The problem consists in a solid body with an internal uniform heat generation, which is cooled by an intruded cavity that is maintained at a minimal temperature. The other surfaces are kept as adiabatic. The objective is to minimize the maximum excess of temperature (胃<sub>max</sub>) in the solid domain through geometric optimization of the isothermal double-T shaped cavity. The problem geometry has five degrees of freedom, but in this study four degrees of freedom are evaluated, keeping fixed the ratio <i>H</i>/<i>L</i> (ratio between the height and length of the solid domain) as well as the cavity constraints. The search for the optimal geometry is performed by Simulated Annealing and the Luus-Jaakola algorithm with different configurations or set of main parameters. Each algorithm is executed twenty times and the results for 胃<sub>max</sub>, and corresponding geometry ratios, are recorded. Results of two heuristics are compared in order to select the best method for future studies about the complete optimization of the cavity, as well as, the evaluation of constraints over the thermal performance of the problem. The method employed to compare and rank the different versions of the two algorithms is a statistical tool called multi-comparison of Kruskal-Wallis. With this statistical method it is possible to classify the algorithms in three main groups. Results showed that the Simulated Annealing with hybrid parameters of Cooling Schedule (BoltzExp and ConstExp2) and traditional ones (Exponential) led to the highest probability to find the global optimal shape, while the results obtained with the Luus-Jaakola algorithm reached to several local points of minimum far from the best shape for all versions of the algorithm studied here. However, the Luus-Jaakola algorithm led to the lowest magnitude of maximum excess of temperature, showing that the implementation of hybrid methods of optimization can be an interesting strategy for evaluation of this kind of problem. </div> <div> <a data-readmore="{ block: '#abstractTextBlock522265', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 152 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.370.162">Thermal Fatigue Analysis in a High Pressure Cooling System (HPCS) Nozzle of a Boling Water Reactor</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Luis Héctor Hernández-Gómez, Brayan Leonardo Pérez-Escobar, Juan Alfonso Beltrán-Fernández, Juan Alejandro Flores-Campos, Salatiel Pérez-Montejo, Krisselby Ivonne Jiménez-Santiago, Pablo Ruiz-López, Guillermo Manuel Urriolagoitia-Calderón </div> </div> <div id="abstractTextBlock522266" class="volume-info volume-info-text volume-info-description"> Abstract: In this paper, the Cumulative Usage Factor (CUF) of a High Pressure Core Cooling System (HPCS) reactor nozzle of a Boiling Water Reactor was calculated. This fatigue damage has been caused by the sudden injection of cold water into the reactor vessel through such nozzle. For this purpose, a three-dimensional analysis was carried out. Accordingly, a transient heat transfer analysis was developed. The temperature distribution was determined. With this information, the stress analysis was carried out. The safe end was restricted to move along its axial direction and the forging end was free to expand axially and radially. The resultant stress field established the magnitude of the alternative stresses. In the last step, a fatigue analysis was developed. The most critical point is the junction of the nozzle with the thermal sleeve. The fatigue performance was evaluated during a period of sixty years. It was assumed that 1.5 cycles per year will take place. The fatigue curves of ASME code section III were used. The results showed that the Cumulative Usage Factor (CUF) vary with the temperature injection, being 0.4090 when the water injected was 4.44掳C and 0.3797 when the water temperature was 37.77掳C. Both of them were estimated for a period of 60 years of operation. Therefore, damage is reduced as the temperature of the injected water increases. Besides, it is advisable to at least follow the recommendations of the NUREG 虂s 1800 and 1801 [1, 2]. In this way, the aging of the nozzle is adequately managed. </div> <div> <a data-readmore="{ block: '#abstractTextBlock522266', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 162 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.370.171">The Influence of Post-Heat-Treatments on the Tensile Strength and Surface Hardness of Selective Laser Melted AlSi10Mg</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Leonhard Hitzler, Amandine Charles, Andreas Öchsner </div> </div> <div id="abstractTextBlock522267" class="volume-info volume-info-text volume-info-description"> Abstract: Recent investigations revealed major fluctuations in the material properties of selective laser melted AlSi10Mg, which corresponded with the varying precipitation-hardening state of the microstructure, caused by the differing dwell times at elevated temperatures. It was indicated that a subsequent heat treatment balances the age-hardening and results in a homogenized material strength. In order to further investigate this statement selective laser melted AlSi10Mg samples were subject to multiple post-heat-treatments. Subsequently, the surface hardness and tensile strength was determined and compared with the as-built results. The post-heat-treatment led to an arbitrary occurrence of rupture, indicating a successful homogenization, coupled with a remarkable improvement in ductility, but to the costs of a lowered tensile strength, which was highly dependent on the chosen heat-treatment procedure. </div> <div> <a data-readmore="{ block: '#abstractTextBlock522267', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 171 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.370.177">Automatized Estimation of the Effective Thermal Conductivity of Carbon Fiber Reinforced Composite Materials</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Zia Javanbakht, Wayne Hall, Andreas Öchsner </div> </div> <div id="abstractTextBlock522268" class="volume-info volume-info-text volume-info-description"> Abstract: In the current study, the representative volume element (RVE) is used to model randomly generated nanocomposite structures consisting of carbon nanotubes (CNTs) embedded in an epoxy resin matrix. The finite element Method is utilized for numerical simulations and investigation of the influential parameters on the generated RVEs. In order to automatize the whole procedure - fromgenerating the finite element models to conducting the analyses - a subroutine-based programming approach is adopted using the MSC Marc finite element package and Fortran programming language. The simulations can successfully predict the increase in thermal conductivity of CNT-reinforced nanocomposites by increasing the fiber volume fraction. </div> <div> <a data-readmore="{ block: '#abstractTextBlock522268', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 177 </div> </div> <div class="block-bottom-pagination"> <div class="pager-info"> <p>Showing 11 to 19 of 19 Paper Titles</p> </div> <div class="pagination-container"><ul class="pagination"><li class="PagedList-skipToPrevious"><a href="/DDF.370" rel="prev"><</a></li><li><a href="/DDF.370">1</a></li><li class="active"><span>2</span></li></ul></div> </div> </div> </div> </div> </div> </div> </div> <div class="social-icon-popup"> <a href="https://www.facebook.com/Scientific.Net.Ltd/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon facebook-popup-icon social-icon"></i></a> <a href="https://twitter.com/Scientific_Net/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon twitter-popup-icon social-icon"></i></a> <a href="https://www.linkedin.com/company/scientificnet/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon linkedin-popup-icon social-icon"></i></a> </div> </div> <div class="sc-footer"> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="footer-menu col-md-12 col-sm-12 col-xs-12"> <ul class="list-inline menu-font"> <li><a href="/ForLibraries">For Libraries</a></li> <li><a href="/ForPublication/Paper">For Publication</a></li> <li><a href="/insights" target="_blank">Insights</a></li> <li><a href="/DocuCenter">Downloads</a></li> <li><a href="/Home/AboutUs">About Us</a></li> <li><a href="/PolicyAndEthics/PublishingPolicies">Policy & Ethics</a></li> <li><a href="/Home/Contacts">Contact Us</a></li> <li><a href="/Home/Imprint">Imprint</a></li> <li><a href="/Home/PrivacyPolicy">Privacy Policy</a></li> <li><a href="/Home/Sitemap">Sitemap</a></li> <li><a href="/Conferences">All Conferences</a></li> <li><a href="/special-issues">All Special Issues</a></li> <li><a href="/news/all">All News</a></li> <li><a href="/read-and-publish-agreements">Read & Publish Agreements</a></li> </ul> </div> </div> </div> </div> <div class="line-footer"></div> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="col-xs-12"> <a href="https://www.facebook.com/Scientific.Net.Ltd/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon facebook-footer-icon social-icon"></i></a> <a href="https://twitter.com/Scientific_Net/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon twitter-footer-icon social-icon"></i></a> <a href="https://www.linkedin.com/company/scientificnet/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon linkedin-footer-icon social-icon"></i></a> </div> </div> </div> </div> <div class="line-footer"></div> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="col-xs-12 footer-copyright"> <p> © 2024 Trans Tech Publications Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For open access content, terms of the Creative Commons licensing CC-BY are applied. <br />Scientific.Net is a registered trademark of Trans Tech Publications Ltd. </p> </div> </div> </div> </div> </div> <a class="scrollTop inline-icon scroll-top-icon" href="#" style="display: none"></a> </div> <script src="/Scripts/public.min.js?v=BtSq2PJEHRTW2PekpQGgIQKs7-OSPiKhsoI9rMs6kTU"></script> <script> $(function () { $("#paper-search").autocomplete({ minLength: 1, source: '/Title/Search?kurzel=DDF&volumeBegin=370&volumeEnd=370', delay: 200, select: function (event, ui) { window.location.href = ui.item.url; } }); }); </script> <script asp-render-component-scripts> $(function () { $.get("/Title/ShowMarcXmlLink") .done(function (showMarcXmlLink) { if (showMarcXmlLink) { $("#titleMarcXmlLink").show(); } }); }); Scinet.public = (function () { function loadCartInfo(onLoad) { var formatCartItemCount = function (count) { var format = (count > 1 || count === 0) ? "{0} items" : "{0} item"; $("#cartInfoTotalItemsCount").html(Scinet.stringFormat(format, count)); }, cookieCartItemCount = Cookies.get("Scinet5.CartItemsCount"); if (onLoad && cookieCartItemCount != null) { formatCartItemCount(parseInt(cookieCartItemCount, 10)); } else { $.ajax({ url: "/Cart/GetItemsCount", cache: false }) .done( function (count) { Cookies.set("Scinet5.CartItemsCount", count, { domain: ".scientific.net", secure: true }); formatCartItemCount(count); }); } } return { loadCartInfo: loadCartInfo }; })(); $(function () { Scinet.public.loadCartInfo(true); $("[data-add-book-to-cart]").on("click", function (e) { e.preventDefault(); var data = $(this).data("add-book-to-cart"); console.log(data); var url = "/Cart/AddBook"; $.post(url, data) .done( function () { Scinet.public.loadCartInfo(); $("#addToCart").modal(); }) .fail( function (xhr) { Scinet.error(xhr.responseText); }); }) }); </script> <script> var $buoop = { required: { e: 11, f: -6, o: -6, s: -3, c: -6 }, insecure: false, unsupported: false, api: 2019.11, reminder: 0, onshow: function () { window.browserUpdateOutdated = true; } }; function $buo_f() { var e = document.createElement("script"); e.src = "//browser-update.org/update.min.js"; document.body.appendChild(e); }; try { document.addEventListener("DOMContentLoaded", $buo_f, false) } catch (e) { window.attachEvent("onload", $buo_f) } </script>   <script> window.clientErrorLogActionUrl = "/Errors/LogClientError"; </script> </body> </html>

CINXE.COM

Defect and Diffusion Forum Vol. 370 | p. 2 | Scientific.Net