Relevant bibliographies by topics / Heat Conductivity Test

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Heat Conductivity Test'

Author: Grafiati
Published: 7 June 2025
Last updated: 2 August 2025

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Journal articles on the topic "Heat Conductivity Test"

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Park, Kweon-Ha, Jin-A. Lee, and Hye-Min Kim. "Heat Conductivity Test and Conduction Mechanism of Nanofluid." Journal of the Korean Society of Marine Engineering 32, no. 6 (2008): 862–68. http://dx.doi.org/10.5916/jkosme.2008.32.6.862.

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Lou, Fengfei, Sujun Dong, Keyong Zhu, Xiaona Chen, and Yinwei Ma. "Thermal Insulation Performance of Aerogel Nano-Porous Materials: Characterization and Test Methods." Gels 9, no. 3 (2023): 220. http://dx.doi.org/10.3390/gels9030220.

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Due to the extremely high porosity and extremely low density of nano-porous thermal insulation materials, the characteristic size of the pores inside the materials and the characteristic size of the solid skeleton structure are on the nanometer scale, which leads to the obvious nanoscale effect of the heat transfer law inside the aerogel materials. Therefore, the nanoscale heat transfer characteristics inside the aerogel materials and the existing mathematical models for calculating the thermal conductivity of various heat transfer modes at the nanoscale need to be summarized in detail. Moreov
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Zhao, Yanrong, Yufeng Wei, Rong Rong, et al. "A Novel Slug Heat Test Theoretical and Indoor Model Research for Determining Thermal Property Parameters of Aquifers and Rock-Soil Skeletons." Water 14, no. 19 (2022): 3020. http://dx.doi.org/10.3390/w14193020.

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As important parameters for characterizing heat transfer, thermal property parameters of aquifers and rock-soil skeletons have important research significance in the development and utilization of geothermal resources. The slug heat test is inspired by the slug test, and the heat is instantaneously excited in the test well so as to change the temperature of test section in the test well instantaneously. Based on the thermal radial convection-dispersion theory and the principle of heat conservation, the theoretical model of the slug heat test is established, and the model is solved by Laplace t
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Erten, Duygu, and Zekâi Şen. "Smart Home Innovative Heat Test Analysis for Heat Storage and Conductivity Coefficients." Sustainability 12, no. 4 (2020): 1414. http://dx.doi.org/10.3390/su12041414.

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This paper aims at presenting an innovative methodological approach to identify the heat storage and heat conductivity coefficients of a smart house. For this purpose, an experimental room is selected and heated to a high degree and then left for cooling, during which the reduction in the room temperature is measured with time. The time–temperature record provides the basis for determining the heat storage and heat conductivity coefficients through an objective standard curve matching procedure as the main context. These coefficients help to calculate the heat performance of a single room and,
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Ohmura, Takahiro, and Mikinori Tsuboi. "The Thermal Conductivity Test by a Cyclic Heat Method." Netsu Bussei 13, no. 4 (1999): 264–70. http://dx.doi.org/10.2963/jjtp.13.264.

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Zhang, Shu Guang, and Yong Gang Yu. "Thermal Conductivity Test and Coupling Simulation of Heat-Transfer in Fracture Rock." Advanced Materials Research 382 (November 2011): 3–6. http://dx.doi.org/10.4028/www.scientific.net/amr.382.3.

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In order to research thermal conductivity of fracture rock, fluid-heat coupling test and simulation are studied. Empirical equation of thermal conductivity is obtained and conductivity factor is ensured by test data. Based on the fluid-heat coupling model of heat-transfer, temperature field distribution of fracture rock is described. At the same time, the heat-transfer equation is discretized by using weighted residual Galerkin finite element. Combined with boundary condition and parameters, the temperature field in fractured rock mass is simulated by finite element method. The temperature of
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Gümüşsoy, Aleyna, Onur Gülbaba, Işık Kaya, and Emrah Fahri Özdoğru. "Simulation of Quench Rate by Jominy End Quench Test for 6082 Aluminium Alloys." Key Engineering Materials 988 (September 27, 2024): 11–20. http://dx.doi.org/10.4028/p-sedg1g.

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In the present study, it is aimed to investigate the influence of quench rate on the hardness and electrical conductivity that obtained after artificial aging by using Jominy End Quench test method. The Jominy End Quench test bars were solution heat treated at 560°C for 3 hours. After solution heat treatment, water, spray, and air quenching medias were used in order to obtain different quench rates. After the quench, quench rate determination, hardness and electrical conductivity measurements were performed for three different quenching medias. Then, artificial aging heat treatment were applie
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Buliński, Z., S. Pawlak, T. Krysiński, W. Adamczyk, and R. Białecki. "Application of the ASTM D5470 standard test method for thermal conductivity measurements of high thermal conductive materials." Journal of Achievements in Materials and Manufacturing Engineering 2, no. 95 (2019): 57–63. http://dx.doi.org/10.5604/01.3001.0013.7915.

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Purpose: The purpose of the present study was to demonstrate the procedure for determining the thermal conductivity of a solid material with relatively high thermal conductivity, using an original self-designed apparatus. Design/methodology/approach: The thermal conductivity measurements have been performed according to the ASTM D5470 standard. The thermal conductivity was calculated from the recorded temperature values in steady-state heat transfer conditions and determined heat flux. Findings: It has been found from the obtained experimental results that the applied standard test method, whi
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Gomes, Maria da Glória, José Alexandre Bogas, Sofia Real, António Moret Rodrigues, and Rita Machete. "Thermal Performance Assessment of Lightweight Aggregate Concrete by Different Test Methods." Sustainability 15, no. 14 (2023): 11105. http://dx.doi.org/10.3390/su151411105.

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Structural lightweight aggregate concrete is currently an alternative to normal-weight concrete when thermal insulation properties are required to meet the objectives of energy efficiency and sustainability. The accurate evaluation of the thermal performance is thus essential for designing structural lightweight concrete elements. This paper aims to evaluate the thermal behavior of structural lightweight aggregate concrete, assessed through different tests methods. To this end, a vast experimental campaign was carried out involving specimens produced with several types of lightweight aggregate
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Ma, Yongjie, Yanjun Zhang, Yuxiang Cheng, Yu Zhang, Xuefeng Gao, and Kun Shan. "A Case Study of Field Thermal Response Test and Laboratory Test Based on Distributed Optical Fiber Temperature Sensor." Energies 15, no. 21 (2022): 8101. http://dx.doi.org/10.3390/en15218101.

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To design an efficient ground source heat pump (GSHP) system, it is important to accurately measure the thermophysical parameters of the geotechnical layer. In the current study, a borehole is tested in detail using a combined thermal response test system (CTRTS) based on a distributed optical fiber temperature sensor (DOFTS) and a laboratory test. Real-time monitoring of the stratum temperature according to depth and operation time and the geothermal profile and thermal conductivity of each stratum are obtained. The results show that the undisturbed ground temperature is 10.0 °C, and the form
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Dissertations / Theses on the topic "Heat Conductivity Test"

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Delobelle, Vincent. "Contributions à l'étude thermomécanique des alliages à mémoire de forme NiTi et à la réalisation par soudage de matériaux architecturés NiTi." Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00982218.

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Les alliages à mémoire de forme Nickel Titane sont des matériaux aux propriétés remarquablesdues à une transformation martensitique réversible et sont largement utiliséspar l'industrie biomédicale et dans des dispositifs de type actionneurs. La première partiede cette étude porte sur une analyse de leur comportement thermomécanique basée surla réalisation de mesures de champs cinématiques (par corrélation d'images visibles) etthermiques (par caméra infrarouge). Une part importante du travail présenté concernel'amélioration des calculs de sources de chaleur à partir des champs de température. P
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Detoni, Cezar Ernesto. "Grain Sorghum Field Emergence and Seed Vigor Tests." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/30649.

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Poor emergence of sorghum [(Sorghum bicolor (L) Moench] affects the stand and potential yields. The major objective of this research was to find correlations among field emergence data and laboratory seed vigor tests. Thirty-two and 30 hybrids of sorghum were planted at three Virginia locations in 1995 and 1996, respectively. Field emergence was subsequently compared with results from laboratory tests that included: 1) standard germination; 2) osmotic-stress using polyethylene glycol 8000 (mw); 3) heat-shock using 2 hr at 50?C stress; 4) electrical conductivity of steep water of germ
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Lazar, Václav. "Kalibrace experimentálního zařízení pro testování kosmických technologií." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401523.

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Diplomová práce se zabývá možnosti kalibrace experimentálního testovacího zařízení. Zejména se věnuje návrhu termálního matematického modelu popisujícího tepelné procesy uvnitř zařízení v průběhu měření tepelné vodivosti vzorku. První část práce je věnována seznámení se s testovacím zařízením, jeho limity a principem měření. Popisuje řešení třetí verze testovací komory, společně s nezbytnými úpravami, provedenými za účelem zajištění předepsaných simulačních podmínek. Zmiňuje také potřebu a důvody kalibrace. Druhá část je především zaměřená na návrh kalibračních vzorků a termálního modelu. Uvád
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Mateášik, Timko Marek. "Experimentální ověření pasivních prvků tepelné regulace družic." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443228.

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Diplomová práca sa zaoberá vplyvom termálnych medzivrstiev na tepelnú kontaktnú vodi- vosť a tepelný kontaktný odpor. Práca sa zameriava na aplikáciu termálnych medzivrstiev pre vylepšenie tepelnej kontaktnej vodivosti v tepelnom spínači a v kozmických zariade- niach obecne. Teoretická časť práce stručne skúma rôzne pasívne termálne kontrolné systémy použí- vane v kozmických zariadeniach, vrátane termálnych medzivrstiev, a vysvetľuje pozadie tejto práce. Táto práca ďalej skúma rôzne termálne medzivrstvy, predovšetkým povlaky a fólie, a uvádza výber vhodnej termálnej medzivrstvy. Experimentálna
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Rahmanian, Ima. "Thermal and mechanical properties of gypsum boards and their influences on fire resistance of gypsum board based systems." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/thermal-and-mechanical-properties-of-gypsum-boards-and-their-influences-on-fire-resistance-of-gypsum-board-based-systems(d8eb4bf5-706a-4264-911f-9584ebfbbc83).html.

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Gypsum board assemblies are now widely used in buildings, as fire resistant walls or ceilings, to provide passive fire protection. The fire resistance of such systems is fundamentally due to the desirable thermal properties of gypsum. Yet there is wide variability in reported values of thermal properties of gypsum at high temperatures and a lack of understanding of its integrity in fire. To evaluate the fire protection performance of gypsum board assemblies, it is essential to quantify its thermal properties and obtain information on its mechanical properties at high temperatures. Gypsum board
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Negrao, Bianca Lee. "Autonomic correlates at rest and during evoked attention in children with attention-deficit/hyperactivity disorder and effects of sympathomimetic medication." Diss., Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-07072009-163036/.

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Schneider, Donald A. "Thermal contact resistances in a thermal conductivity test system." Thesis, 1998. http://hdl.handle.net/1957/33742.

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The thermal contact conductance (TCC) between two machined pieces of stainless steel was studied. A guarded hot plate thermal conductivity test fixture was designed and built for the experiment. Factors investigated included the contact pressure, surface roughness, interface material and average test temperature. The contact pressure at the interface ranged from 80 to 800 psi. The mean surface roughness of the opposing surfaces was 2.8 ��in (.0708 ��m) parallel to the sanding direction and 1.9 ��in (.0482 ��m) perpendicular to the sanding direction. Interface materials included air, indium foi
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De-Lu, Chen, and 沈德祿. "The Comparison of the Test Data of Thermal Conductivity Coefficient Parameters in Dynamic and Steady States Effects in the Differences to Predict the Roof's Heat Transfer Rate Performance of the Thermal Insulation Energy Saving Tiles." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/44910724926500874348.

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碩士<br>崑山科技大學<br>機械工程研究所<br>102<br>How to reduce greenhouse gas emissions, reduce greenhouse gas emissions caused by the Earth's greenhouse gases, are serious issues that we must face today. Domestic automobile traffic in addition to the burning of fossil fuels, the main source for a variety of other power plants throughout the country. So save power is to reduce the burning of fossil fuels directly fastest option, so in everyday life, how power, reduce carbon dioxide emissions, has become today's construction, must immediately confront the problem. This paper compares the traditional use of ro
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Shin, Donghyun. "Molten Salt Nanomaterials for Thermal Energy Storage and Concentrated Solar Power Applications." Thesis, 2011. http://hdl.handle.net/1969.1/ETD-TAMU-2011-08-10187.

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The thermal efficiency of concentrated solar power (CSP) system depends on the maximum operating temperature of the system which is determined by the operating temperature of the TES device. Organic materials (such as synthetic oil, fatty acid, or paraffin wax) are typically used for TES. This limits the operating temperature of CSP units to below 400 degrees C. Increasing the operating temperature to 560 degrees C (i.e., the creeping temperature of stainless steel), can enhance the theoretical thermal efficiency from 54 percent to 63 percent. However, very few thermal storage materials are co
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Books on the topic "Heat Conductivity Test"

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Schneider, Donald A. Thermal contact resistances in a thermal conductivity test system. 1998.

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Book chapters on the topic "Heat Conductivity Test"

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Liu, Chenyu, Anlin Wang, and Xiaotian Li. "Thermal Robustness Redesign of Electromagnet Under Multi-Physical Field Coupling." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1876-4_21.

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AbstractAiming at the durability problem of the proportional electromagnet used in the proportional valve of engineering machinery, in order to improve its thermal failure resistance under random load conditions, a parametric redesign model of the proportional electromagnet was proposed based on the multi-physics coupling theory and robust optimization theory. This article takes the proportional electromagnet with a basin-type suction structure as the research object. The parameter model was verified through steady-state proportional electromagnet tests and temperature distribution tests. On t
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Jenssen, P. D. "The Constant Head Percolation Test - Improved Equipment and Possibilities of Assessing the Saturated Hydraulic Conductivity." In Unsaturated Flow in Hydrologic Modeling. Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2352-2_19.

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Lee Chulho, Park Moonseo, Wi Jihae, Choi Hangseok, and Kang Shin-Hyung. "Evaluation of effective thermal conductivity of closed-loop vertical ground heat exchangers by performing in-situ thermal response tests." In Deformation Characteristics of Geomaterials. IOS Press, 2011. https://doi.org/10.3233/978-1-60750-822-9-1288.

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To investigate efficiency of closed-loop vertical ground heat exchangers, six boreholes were constructed to install closed-loop ground heat exchangers in a test bed in Wonju, South Korea, and a series of in-situ thermal response tests has been performed. This field investigation is designed to verify the effect of grout materials, additives and the configuration of circulation pipe on the overall performance of closed-loop vertical ground heat exchanging systems. The bentonite grout and the cement grout were chosen as grouting materials, and silica sand and graphite were considered as additive
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Widiatmojo, Arif, Youhei Uchida, and Isao Takashima. "Effect of Groundwater Flow and Thermal Conductivity on the Ground Source Heat Pump Performance at Bangkok and Hanoi: A Numerical Study." In Geothermal Energy [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99061.

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In recent decades, the fast-growing economies of Southeast Asian countries have increased the regional energy demand per capita. The statistic indicates Southeast Asian electricity consumption grows for almost 6% annually, with space cooling becoming the fastest-growing share of electricity use. The ground source heat pump technology could be one of the solutions to improve energy efficiency. However, currently, there are limited data on how a ground source heat pump could perform in such a climate. The thermal response test is widely used to evaluate the apparent thermal conductivity of the s
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Osman, A. M., N. M. Al-Najem, and J. V. Beck. "Confidence Intervals for Transient Estimation of Thermal Properties - Theory." In Mathematics of Heat Transfer. Oxford University PressOxford, 1998. http://dx.doi.org/10.1093/oso/9780198503583.003.0032.

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Abstract The present paper develops an efficient method for the construction of confidence intervals of thermal properties estimates when correlated random errors are present in temperature measurements. A first-order autoregressive model is used to model autocorrelated measurement errors. An efficient method for numerical evaluation of the covariance matrix of the estimated parameters is described. The approximate Bonferroni method is used to provide simultaneous 95% confidence intervals. A test case for simultaneous estimation of thermal conductivity and volumetric specific heat, and the ass
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Henoegl O., Leonhardt R., Riedler E., and Honarmand H. "Thermal propagation around heat supply pipes &ndash; Determining thermal conductivity of soil specimens." In Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2009. https://doi.org/10.3233/978-1-60750-031-5-1036.

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The Institute for Soil Mechanics and Foundation Engineering at the Graz University of Technology is investigating thermal soil properties within a temperature range concerning e.g. the efficiency of remote heat supply pipes. Until now heat loss from the pipe is minimized by enlarging the polyurethane (PU) - insulation thickness around the pipe. An innovative method to minimize it could be the usage of thermally insulating bedding material. Conventional bedding sands cover all necessary soil mechanical properties, but have a high thermal conductivity of &amp;lambda; =1,5 - 1,7 W/(m K). A newly
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Ramanaiah, K. "Measurement of Thermal Conductivity of Natural Fiber Composites." In Materials Research Foundations. Materials Research Forum LLC, 2022. http://dx.doi.org/10.21741/9781644901854-8.

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The conventional materials are replaced with natural composites in energy saving applications due to their good insulation properties against heat transfer and the higher specific strength. In this chapter, the extraction of natural fibers, preparation of composites was discussed. The process of measurement of thermal conductivity of composites is elucidated. Based on the test data, natural polymer composites are promising composite materials for energy saving applications.
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Katsura, Takao. "Transparent Vacuum Insulation Panels." In Advances and Technologies in Building Construction and Structural Analysis. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.92422.

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New, low-cost transparent vacuum insulation panels (TVIPs) using structured cores for the windows of existing buildings are proposed. The TVIP is produced by inserting the structured core, the low-emissivity film, and the adsorbent into the transparent gas barrier envelopes. In this chapter, the authors introduce the outlines, the design and thermal analysis method, the performance evaluation (test) method. Firstly, five spacers, namely peek, modified peek, mesh, silica aerogel, and frame, are selected as the structured core. The effective thermal conductivity of TVIPs with five different spac
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"Purification of acidic condensate using a reverse osmosis test unit." In Book of Abstracts - RAD 2025 Conference. RAD Centre, Niš, Serbia, 2025. https://doi.org/10.21175/rad.abstr.book.2025.46.7.

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Many industrial processes generate various types of contaminated liquid streams. Before discharge into the sewage system, they must be treated to remove pollutants that pose risks to human health and the environment, in line with sustainability standards. This study, conducted as part of the EU Horizon 2020 project iWAYS (Innovative WAter recoverY Solutions through recycling of heat, materials, and water across multiple sectors”), focuses on the purification of diluted condensate (up to the pH value of ≈2.2) formed during the condensation of simulated humid industrial gas at temperatures of 20
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Kyaw Oo D'Amore Giada, Caniato Marco, Schmid Chiara, et al. "An Innovative Thermal and Acoustic Insulation Foam for Naval Fire Doors Characterization and Study with FEM Analysis." In Technology and Science for the Ships of the Future. IOS Press, 2018. https://doi.org/10.3233/978-1-61499-870-9-332.

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An innovative acoustic and thermal insulating foam was developed starting from fiberglass waste. In this work, the thermo-mechanical response of a fire door containing the foam as insulating material is considered and also the acoustic properties are investigated. In order to comply with the certification process provided by 2010 FTP Code, fire doors must undergo a standard fire test where a prototype is subjected to temperature up to 950&amp;deg;C. A realistic simulation of the heating process is useful during the design phase for the evaluation of the fire door behaviour without prototype co
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Conference papers on the topic "Heat Conductivity Test"

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Katz, A., and R. Becker. "THERMAL CONDUCTIVITY TEST OF MOIST MATERIALS -ESTIMATION OF ERROR." In International Heat Transfer Conference 9. Begellhouse, 1990. http://dx.doi.org/10.1615/ihtc9.280.

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Case, John, and Ralph A. Wagner. "Numerical Determination of Rock-Mass Thermal Conductivity." In ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ht-fed2004-56082.

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Temperature distributions from the Single Heater Test of the Yucca Mountain Project were used to determine rock-mass thermal conductivity. The Single Heater Test, located in a densely welded tuff in Alcove 5 of the Exploratory Studies Facility at Yucca Mountain, is nominally 13-m wide, 10-m deep and 5.5-m high. A centrally located, 5-m long, 4 kW electrical heater was activated for 9 months. During the heating phase and subsequent cooling phase of a similar duration, temperatures were measured hourly from more than 300 thermocouples emplaced in boreholes strategically drilled into the test blo
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Cui, Wenzhi, Quan Liao, Guiqin Chang, Qingyuan Peng, and Tien-Chien Jen. "In-Situ Thermal Response Test for Ground Source Heat Pump Application." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-63318.

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The design and performance optimization of ground source heat pump (GSHP) systems need the exact thermal properties of the soil, such as ground thermal conductivity and capacity, and the borehole thermal resistance of borehole heat exchanger (BHE). In-situ thermal response test (TRT) is the most widely used method to determine the overall thermal physical properties of the geological structure around the borehole. A TRT experimental apparatus has been developed and thermal response test was performed in Chongqing, southwest China. Both single-U and double-U borehole heat exchangers are studied
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Thompson, Willis H., Srinath V. Ekkad, C. Guney Olgun, and Joseph Wheeler. "Numerical Modeling of Fluid Flow and Thermal Behavior in Geothermal Heat Exchangers." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-65098.

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Geothermal heat exchangers are highly dependent on the local heat exchange capacity and ground thermal properties. The ability to simulate performance and testing of geothermal heat exchangers is limited. Therefore thermal conductivity tests are usually required for correct sizing of geothermal heat exchange systems. To better understand these tests in relation to energy piles, a 3D finite element model was created using the COMSOL software to simulate the thermal conductivity test of a 12inch (30cm) energy pile. The finite element simulation was created and validated using experimental data t
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Sonsalla, Tyler J., Leland Weiss, Arden Moore, Adarsh Radadia, Debbie Wood, and Davis Bailey. "Zinc Composites With Enhanced Thermal Conductivity for Use in Fused Deposition Modeling Systems." In ASME 2017 Heat Transfer Summer Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/ht2017-5062.

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Waste heat is a major energy loss in manufacturing facilities. Thermally conductive polymer composite heat exchangers could be utilized in the ultralow temperature range (below 200° C) for waste heat recovery. Fused deposition modeling (FDM), also known as three-dimensional (3-D) printing, has become an increasingly popular technology and presents one approach to fabrication of these exchangers. The primary challenge to the use of FDM is the low-conductivity of the materials themselves. This paper presents a study of a new polymer-Zn composite designed for enhanced thermal conductivity for usa
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Bharathi, Arvind Krishnasamy, and Adri van Duin. "Analysis of Thermal Transport in Zinc Oxide Nanowires Using Molecular-Dynamics Simulations With the ReaxFF Reactive Force-Field." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22733.

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The objective of this paper is to determine the thermal conductivity of Zinc Oxide nanowire by Steady State Non-equilibrium and Transient Non-equilibrium Molecular Dynamics (SS-NEMD and T-NEMD) simulations using the ReaxFF reactive force field [5]. While SS-NEMD uses an equilibrated system and statistical averaging; T-NEMD uses cooling/heating rates in order to calculate the conductivity. The validity of the methods is first verified using Argon as a test case. The thermal conductivity of Argon thus calculated is compared with those presented by Bhowmick and Shenoy [20]. We then study the effe
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Kabelac, S., and K. B. Anoop. "Experimental Convective Heat Transfer With Nanofluids." In ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2008. http://dx.doi.org/10.1115/icnmm2008-62099.

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Nanofluids are colloidal suspensions with nano-sized particles (&lt;100nm) dispersed in a base fluid. From literature it is seen that these fluids exhibit better heat transfer characteristics. In our present work, thermal conductivity and the forced convective heat transfer coefficient of an alumina-water nanofluid is investigated. Thermal conductivity is measured by a steady state method using a Guarded Hot Plate apparatus customized for liquids. Forced convective heat transfer characteristics are evaluated with help of a test loop under constant heat flux condition. Controlled experiments un
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Dapeng, Yan, and Ying Luo. "A Study of Heat Transfer Calculation Method of Reactor Vessel Metallic Insulation." In 2014 22nd International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/icone22-30446.

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Metallic insulation is commonly used in reactor vessel because of its resistance to radiation and corrosion. Since the main mode of heat loss of reactor vessel is thermal radiation, the ability to prevent radiation heat transfer is important for metallic insulation. But the thermal conductivity of metallic insulation is difficult to calculate owing to their complex geometry. This article uses FLUENT 14.0 to obtain the important parameter “view factor”, and then develops a computational model of effective conductivity of metallic insulation. Heat transfer test of metallic insulation was done, a
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Teertstra, Peter. "Thermal Conductivity and Contact Resistance Measurements for Adhesives." In ASME 2007 InterPACK Conference collocated with the ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ipack2007-33026.

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Thermal adhesives that contain large concentrations of high thermal conductivity filler materials, such as ceramics or metals, are widely used by the electronics industries in a variety of applications. The thermal properties of these materials, such as the thermal contact resistance across a bonded joint and the thermal conductivity of the bulk material, are critical to the selection of the “best” material. A method is presented for the measurement of these thermal properties using a steady-state, guarded heat flux meter test apparatus based on the well-documented and familiar ASTM test stand
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Beck, James V., and John A. Shonder. "A Parameter Estimation Technique for Determining Soil Thermal Properties in the Design of Heat Exchangers for Geothermal Heat Pumps." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0656.

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Abstract A one-dimensional thermal model is derived to describe the temperature field around a vertical borehole heat exchanger (BHEx) for a geothermal heat pump. The inlet and outlet pipe flows are modeled as one, and an effective heat capacity is added to model the heat storage in the fluid and pipes. Parameter estimation techniques are then used to estimate various parameters associated with the model, including the thermal conductivity of the soil and of the grout which fills the borehole and surrounds the u-tube. The model is validated using test data from an experimental rig containing s
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Reports on the topic "Heat Conductivity Test"

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Pradhan, Nawa Raj, Charles Wayne Downer, and Sergey Marchenko. User guidelines on catchment hydrological modeling with soil thermal dynamics in Gridded Surface Subsurface Hydrologic Analysis (GSSHA). Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48331.

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Climate warming is expected to degrade permafrost in many regions of the world. Degradation of permafrost has the potential to affect soil thermal, hydrological, and vegetation regimes. Projections of long-term effects of climate warming on high-latitude ecosystems require a coupled representation of soil thermal state and hydrological dynamics. Such a coupled framework was developed to explicitly simulate the soil moisture effects of soil thermal conductivity and heat capacity and its effects on hydrological response. In the coupled framework, the Geophysical Institute Permafrost Laboratory (
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Klammler, Harald. Introduction to the Mechanics of Flow and Transport for Groundwater Scientists. The Groundwater Project, 2023. http://dx.doi.org/10.21083/gxat7083.

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Starting from Newton’s laws of motion and viscosity, this book is an introduction to fundamental aspects of fluid dynamics that are most relevant to groundwater scientists. Based on a perspective of driving versus resisting forces that govern the motion of a fluid, the author derives Darcy’s law for flow through porous media by drawing an analogy to Bernoulli’s law for fluid with negligible viscosity. By combining the effects of gravity and pressure, the author identifies hydraulic head as a convenient numerical quantity to represent the force driving groundwater flow. In contrast to the physi
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