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Serhii Pozdieiev,Oleksandr Nuianzin,Olena Borsuk,Oksana Binetska,Andrii Shvydenko,Bogdan Alimov
Pág. 39 - 45
The value of the thermal conductivity coefficient depending on the temperature of the samples of steel rod fragments with fire-retardant cladding has been determined in the present research.The thermal conductivity coefficient of mineral wool fire-retard...
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Linlin Liu, Mingmei Jiang, Juanjuan Yin, Wenfeng Guo and Tifeng Jiao
Perovskite-type was synthesized by two methods, the combustion method and conventional solid state reaction (SSR) method. The effect of synthesis methods on sinterability and physical properties of the ceramic were investigated. The results show that the...
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Joanna Krason, Przemyslaw Miasik, Lech Licholai, Bernardeta Debska and Aleksander Starakiewicz
The article presents a comparative analysis carried out using three methods, determining the heat transfer coefficient U for a ceramic product modified with a phase change material (PCM). The purpose of the article is to determine the convergence of the ...
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Sergey Khrapak
Application of a vibrational model of heat transfer to a fluid made of hard spheres is discussed. The model was originally proposed to describe heat conduction in fluids with soft pairwise interactionsHere, it is shown that only minor modifications are r...
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Stanislav Hodas, Alzbeta Pultznerova and Jana Izvoltova
Structural elements of railway buildings in transition zones are important parts of railway lines, where the structure of their materials is fundamentally changing. In the presented research results, these are changes in the railway body between a railwa...
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Nadezda Stevulova, Julia Cigasova, Ivana Schwarzova, Alena Sicakova and Jozef Junak
This experimental study was focused on the application of a surface-modified hemp- hurds aggregate into composites using an alternative binder of MgO-cement. This paper presents the results of the comparative study of the parameters (chemical and physico...
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Yuriy Tsapko,Vasyl Lomaha,?leksii Tsapko,Serhii Mazurchuk,Oleksandra Horbachova,Denys Zavialov
Pág. 55 - 60
An analysis of fire-retardant materials for wooden building structures is carried out and the need to develop reliable methods for studying the process of ignition and flame propagation on the surface of a building structure, necessary for creating new t...
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Manuel Cunha Pereira, António Soares, Inês Flores-Colen and João Ramôa Correia
Thermal mortars incorporating insulating aggregates are a possible solution to ensure good thermal performance and thermal comfort in buildings due to their low thermal conductivity coefficient. Under some circumstances, namely for particular in-service ...
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Mohammad Hemmat Esfe
Pág. 202 - 208
In this article, thermal conductivity data of aqueous nanofluids of CuO have been modeled through one of the instruments of empirical data modeling. The input data of 5 different volume fractions of nanofluid obtained in four temperatures through experim...
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Xiao Zhang, Weitao Liu, Mengting Cao, Shuo Zhang and Jiaoyun Hou
Current research efforts aim to develop insulating building materials to cope with hot tunnels by using crop straw fibers. The amount of straw fiber incorporated included different percentages of the gelling material mass: 0% (reference specimen), 2.5%, ...
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Ruifan Hu, Yongliang Chen, Jifei Wu and Shuling Tian
At cryogenic temperatures, gases exhibit significant deviations from ideal behaviour, and the commonly employed gas model may inadequately represent the thermodynamic properties of cryogenic gases, subsequently impacting numerical simulations using vario...
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Aleksandr Klimov, Ilya Bakeev, Efim Oks and Aleksey Zenin
We describe our investigations of electron beam sintering of multilayer ZrO2-Al2O3 composite ceramics in the forevacuum pressure range (~30 Pa). To generate the electron beam, a plasma-cathode electron source operating in the forevacuum pressure range wa...
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Feihong Yun, Dong Liu, Xiujun Xu, Kefeng Jiao, Xiaoquan Hao, Liquan Wang, Zheping Yan, Peng Jia, Xiangyu Wang and Bin Liang
Taking a subsea collet connector as an example, the contact characteristics of the sealing structure of the subsea connector under thermal?structural coupling were studied. Considering the heat transfer problem of the subsea connector in deep water, the ...
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Mariano Pierantozzi, Sebastiano Tomassetti and Giovanni Di Nicola
In this paper, the procedure of finding the coefficients of an equation to describe the thermal conductivity of refrigerants low in global warming potential (GWP) is transformed into a multi-objective optimization problem by constructing a multi-objectiv...
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Yangyang Pan, Bo Liang, Yaran Niu, Dijuan Han, Dongdong Liu and Xuebin Zheng
In this study, a new coating material for thermal barrier coating (TBC) or environment barrier coating (EBC) application, Ca3ZrSi2O9 (CZSO), was synthesized and prepared by atmospheric plasma spray (APS) technology. The evolution of the phases and micros...
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Hossein Rostamian, Mohammad Nader Lotfollahi
Pág. 146 - 152
In this study, a new correlation for estimating thermal conductivity (TC) of carbon dioxide was developed based on 2319 data points. The data points were at the temperature ranging from 250 to 1100 K, pressure ranging from 1 to 3000 bar and density rangi...
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Júlia Castro Mendes,Paloma Bárbara Pinto,Henrique Emanuel Américo da Silva,Rodrigo Rony Barreto,Taís Kuster Moro,Ricardo André Fiorotti Peixoto
Pág. 29 - 41
The envelope of a building is responsible for its physical protection against external agents, including humidity and temperature. Thus, the present work seeks to evaluate the effect of air entraining admixtures (AEA) in mortars for laying and coating to...
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Linlin Sun, Liu Chu, Jiajia Shi and Eduardo Souza de Cursi
The unavoidable vacancy defects dispersed throughout the entire pristine graphene tailor to the integrity of the lattice structure and thereby have complicated impacts on the mechanical and thermal properties of graphene. In order to analyze the influenc...
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Seyed Saeed Madani, Erik Schaltz and Søren Knudsen Kær
This paper reviews different methods for determination of thermal parameters of lithium ion batteries. Lithium ion batteries are extensively employed for various applications owing to their low memory effect, high specific energy, and power density. One ...
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Haihua Yao, Zheng Zhou, Liang Wang, Zhen Tan, Dingyong He and Lidong Zhao
To protect aluminum parts in vehicle engines, metal-based thermal barrier coatings in the form of Fe59Cr12Nb5B20Si4 amorphous coatings were prepared by high velocity oxygen fuel (HVOF) spraying under two different conditions. The microstructure, thermal ...
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