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Journal articles on the topic 'Thermal field method'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Kishimoto, Satoshi, and Yoshihisa Tanaka. "OS01F067 Two-Dimensional Electron Moire Method Using Digital Thermal Field Emission Scanning Electron Microscope." Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2011.10 (2011): _OS01F067——_OS01F067—. http://dx.doi.org/10.1299/jsmeatem.2011.10._os01f067-.

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2

Xue, Chun Fang. "Method of Lines to Solve the Linear Temperature Field of LENS." Advanced Materials Research 1120-1121 (July 2015): 1441–45. http://dx.doi.org/10.4028/www.scientific.net/amr.1120-1121.1441.

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This article introduces a semi-analytical numerical method ——method of lines(MOLs) to solve steady temperature field of Laser Engineered Net shaping (LENS). The main idea of MOLs is to semi-discretized the governing equation of thermal transfer problem into a system of ordinary differential equations (ODEs) defined on discrete lines by means of the finite difference method. The steady linear temperature fields of functionally graded materials were obtained using MOLs and the regularities of different temperature functions were also found. The effects of thermal conductivity coefficient under d

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3

Tan, Wei, Chang Qing Sun, Chun Fang Xue, and Yao Dai. "Method of Lines to Solve 2-D Steady Temperature Field of FGM." Key Engineering Materials 353-358 (September 2007): 2003–6. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.2003.

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Method of Lines (MOLs) is introduced to solve 2-Dimension steady temperature field of functionally graded materials (FGMs). The main idea of the method is to semi–discretized the governing equation of thermal transfer problem into a system of ordinary differential equations (ODEs) defined on discrete lines by means of the finite difference method. The temperature field of FGM can be obtained by solving the ODEs with functions of thermal properties. As numerical examples, six kinds of material thermal conductivity functions, i.e. three kinds of polynomial functions, an exponent function, a loga

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4

STETSIUK, V., and M. VLASUK. "SIMULATION OF THERMAL PROCESSES OF ELECTRICAL MACHINES." Herald of Khmelnytskyi National University. Technical sciences 291, no. 6 (2020): 141–45. https://doi.org/10.31891/2307-5732-2020-291-6-141-145.

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The paper presents a method of analysis of thermal fields of electric machines, built on the basis of solutions of the equations of thermal conductivity and volume distribution of heat fluxes. Since energy losses are released inside the structural elements of the engine, its temperature field is a field with internal heat sources, and the thermal conductivity equation that describes this field is inhomogeneous. The derivation of the differential equation of thermal conductivity is based on the law of conservation of energy. It is shown that temperature analysis can be a universal indicator of

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Pasti, Luisa, Filippo Bedani, Catia Contado, Ines Mingozzi, and Francesco Dondi. "Programmed Field Decay Thermal Field Flow Fractionation of Polymers: A Calibration Method." Analytical Chemistry 76, no. 22 (2004): 6665–80. http://dx.doi.org/10.1021/ac049399q.

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6

Groz, Marie-Marthe, Mohamed Bensalem, Alain Sommier, et al. "Estimation of Thermal Resistance Field in Layered Materials by Analytical Asymptotic Method." Applied Sciences 10, no. 7 (2020): 2351. http://dx.doi.org/10.3390/app10072351.

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In this paper, the problem of the quantitative characterization of thermal resistance fields in a multilayer sample is addressed by using the classical front face flash method as the thermal excitation and infrared thermography (IRT) as the monitoring sensor. In this challenging problem, the complete inverse processing of a multilayer analytical model is difficult due to the lack of sensitivity of some parameters (layer thickness, depth of thermal resistance, etc.) and the expansive computational iterative processing. For these reasons, the proposed strategy is to use a simple multilayer probl

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7

Nogueira, Anderson A., and Fábio L. Braghin. "Symmetry Restorations in the Singlet Scalar Yukawa Model Within the Auxiliary Field Method." Universe 11, no. 1 (2024): 3. https://doi.org/10.3390/universe11010003.

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The aim of this work is to investigate the connection between thermal gap-coupled equations and the concept of symmetry restoration. For that, we consider the Yukawa model, a standard model for interactions between massless fermions mediated by a real self-interacting scalar field. To explore possible symmetry restoration, we study the thermal gap-coupled equations using the auxiliary field method (Hubbard–Stratonovich), and then we derive the effective action with thermal contributions through the background external fields method. With the thermal contributions for the effective action, we i

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Ohmura, Takahiro, Tseng-Wen Lian, Akira Kondo, Ryo Hayasaka, and Makio Naito. "Measurement Method of Thermal Conductivity in Ununiformed Temperature Field." Netsu Bussei 31, no. 4 (2017): 166–73. http://dx.doi.org/10.2963/jjtp.31.166.

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9

Park, Keunsoo, Maria Fernandino, and Carlos A. Dorao. "Thermal two-phase flow with a phase-field method." International Journal of Multiphase Flow 100 (March 2018): 77–85. http://dx.doi.org/10.1016/j.ijmultiphaseflow.2017.12.005.

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10

Sobrino, JoséA, and Vicente Caselles. "A field method for measuring the thermal infrared emissivity." ISPRS Journal of Photogrammetry and Remote Sensing 48, no. 3 (1993): 24–31. http://dx.doi.org/10.1016/0924-2716(93)90061-q.

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11

Douglass, D. A., A. A. Edris, and G. A. Pritchard. "Field application of a dynamic thermal circuit rating method." IEEE Transactions on Power Delivery 12, no. 2 (1997): 823–31. http://dx.doi.org/10.1109/61.584390.

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12

Lin, Ze Jin, Jie Hong Yuan, Yuan Li, Xi Jie Yan, Shi Ming Zhou, and Run Jing Chen. "A Temperature Field Model of Complicated Thermal Analysis System Based on Thermal Network Method." Advanced Materials Research 694-697 (May 2013): 695–98. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.695.

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Based on the thermal network method and heat transfer theory, a temperature field simulation model of complicated thermal analysis system was established by Matlab Simulink. Based on the model, a steady-state temperature field of a helicopter tail reducer was calculated in the normal lubrication. The model is more accurate and reliable than the traditional algorithm. Meanwhile, the model can calculate the time-varying process of the temperature field, corresponding to the transient temperature field.

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13

Chen, Li Zi, Chun Yuan Jing, and Xiao Wei Guan. "Laser-Induced Thermal Damage to K9 Glass on Finite Element Method." Applied Mechanics and Materials 444-445 (October 2013): 1422–26. http://dx.doi.org/10.4028/www.scientific.net/amm.444-445.1422.

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Based on the theory of the thermal conduction and the thermal elastic equations, does some researches in view of the thermal Damage of K9 glass by finite element analysis. The distribution of temperature field and thermal stress field of the ideal K9 glass which irradiated by 100W pulsed-Nd: YAG laser are simulated with finite element software. The result shows that the temperature of the surface of glass doesnt reach the melting and the thermal stress of it doesnt get to the requirement for fracture strength. Then, the model of K9 glass containing inclusions has be built. The simulation resul

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14

Wan, Wan, and Pinlei Chen. "A Fully Coupled Thermomechanical Phase Field Method for Modeling Cracks with Frictional Contact." Mathematics 10, no. 23 (2022): 4416. http://dx.doi.org/10.3390/math10234416.

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In this paper, a thermomechanical coupled phase field method is developed to model cracks with frictional contact. Compared to discrete methods, the phase field method can represent arbitrary crack geometry without an explicit representation of the crack surface. The two distinguishable features of the proposed phase field method are: (1) for the mechanical phase, no specific algorithm is needed for imposing contact constraints on the fracture surfaces; (2) for the thermal phase, formulations are proposed for incorporating the phase field damage parameter so that different thermal conductance

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15

ALTHERR, T. "INTRODUCTION TO THERMAL FIELD THEORY." International Journal of Modern Physics A 08, no. 32 (1993): 5605–28. http://dx.doi.org/10.1142/s0217751x93002216.

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This is a very basic introduction and short (and of course incomplete) overview of thermal field theory. In the first part, I introduce the thermal propagator at a very simple level and give the Feynman rules using the time-path contour method. In the second part, I give examples of these rules in scalar theory and discuss the origin of the thermal mass and other important effects as infrared divergences and phase transitions. In the third part, I outline the resummation program of Braaten and Pisarski.

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16

Tao, Sulin, and Yuhong Li. "A scaling region identification method for the divider dimension of urban thermal environments." Journal of Physics: Conference Series 2791, no. 1 (2024): 012003. http://dx.doi.org/10.1088/1742-6596/2791/1/012003.

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Abstract A scaling region identification method for divider dimensions using the coefficient of determination is proposed to improve the estimation accuracy of the divider dimension in the study of urban thermal environment differentiation characteristics. The effectiveness of this method was verified by analyzing the urban surface thermal field differentiation characteristics by applying the estimated divider dimensions of Nanjing’s thermal environment surfaces and transect lines. The research results show that the urban thermal environment has fractal characteristics only within a certain te

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17

Sobamowo, M. G. "THERMAL PERFORMANCE ANALYSIS OF CONVECTIVE-RADIATIVE FIN WITH TEMPERATURE-DEPENDENT THERMAL CONDUCTIVITY IN THE PRESENCE OF UNIFORM MAGNETIC FIELD USING PARTIAL NOETHER METHOD." Journal of Thermal Engineering 4, no. 5 (2018): 2287–302. http://dx.doi.org/10.18186/thermal.438485.

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18

Rostislav, Liutyi. "Analytical method of calculation of thermal fields of cast parts during crystallization." Theory and practice of metallurgy 1,2021, no. 1,2021(126) (2021): 5–13. http://dx.doi.org/10.34185/tpm.1.2021.01.

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The aim of the work is to create a mathematical method that allows to calculate the distribution of thermal fields in cast parts during crystallization using a system of analytical formulas. During the calculations, a combination of known analytical formulas GF was used. Balandin, AY Weinik, S. Schwartz with their own original mathematical solutions created on the basis of the analysis of thermophysical processes in castings in the process of their crystallization. Computer simulation of thermal fields using the LVMFlow program was used to compare the results. According to the created mathemat

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19

Mallick, Ashis, Rajiv Ranjan, Dilip K. Prasad, and Ranjan Das. "INVERSE PREDICTION AND APPLICATION OF HOMOTOPY PERTURBATION METHOD FOR EFFICIENT DESIGN OF AN ANNULAR FIN WITH VARIABLE THERMAL CONDUCTIVITY AND HEAT GENERATION." Mathematical Modelling and Analysis 21, no. 5 (2016): 699–717. http://dx.doi.org/10.3846/13926292.2016.1225606.

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In the present work, various thermal parameters of an annular fin subjected to thermal loading are inversely estimated using differential evolution (DE) method. In order to obtain the temperature field, the second order nonlinear differential equation for heat transfer with variable thermal conductivity and internal heat generation is solved using Homotopy Perturbation Method (HPM). Classical thermoelasticity approach coupled with an HPM solution for temperature field is employed for the forward solution of thermal stresses. It is interesting that the internal heat generation does not affect t

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20

Klasnic, Ilija, Jasna Dragosavac, and Zoran Lazarevic. "Improved hydrogenerator field winding thermal monitoring." Thermal Science, no. 00 (2023): 36. http://dx.doi.org/10.2298/tsci221212036k.

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A new monitoring method for determination of average hydrogenerator field winding temperature is introduced in order to increase the robustness of the temperature measurement system using the classic U-I method. The classic approach is prone to error due to brush voltage drop, especially when field voltage is low. Developed thermal model is based on field current and cold cooling air temperature measurements, as well on temperatures acquired from digital temperature sensors mounted across the field winding. To monitor the rotor temperature for generators with brushless excitation where field v

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21

Xiang, Yunfei, Peng Lin, Haoyang Peng, et al. "Optimization Method for Improving Efficiency of Thermal Field Reconstruction in Concrete Dam." Applied Sciences 14, no. 23 (2024): 10857. http://dx.doi.org/10.3390/app142310857.

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In an actual concrete dam construction, the efficiency of thermal field reconstruction directly affects the timeliness of temperature control measures. Therefore, using lightweight methods to obtain real-time, accurate thermal fields is crucial for concrete temperature control. To balance both accuracy and efficiency, this study proposes an optimization method for thermal field reconstruction in concrete dams. The method consists of three components: evaluating interpolation algorithms, optimizing the number of monitoring points, and analyzing their positions. Specifically, a distributed tempe

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22

Cheng, Tao, and Ke Qin Yan. "Application of Finite Element Method of Composite Wall Insulation System." Advanced Materials Research 594-597 (November 2012): 2158–61. http://dx.doi.org/10.4028/www.scientific.net/amr.594-597.2158.

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In this paper, the thermal stress characteristics of polystyrene plate - thin plaster wall are present. A three-dimensional element is selected to mesh the wall model, which can simulate the coupling effects of thermal stress and structural stress field. Thermal stress and deformation distribution are proposed after comparing and analyzing the two simulation results. Numerical simulation results indicate that: (1) Polystyrene plates thin plaster wall insulation system has very good thermal insulation properties；(2) Different stress fields concentrate significantly around windows and in the mid

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23

Ma, Yaoyao, Xiaoyu Xu, Shuai Yan, and Zhuoxiang Ren. "A Preliminary Study on the Resolution of Electro-Thermal Multi-Physics Coupling Problem Using Physics-Informed Neural Network (PINN)." Algorithms 15, no. 2 (2022): 53. http://dx.doi.org/10.3390/a15020053.

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The problem of electro-thermal coupling is widely present in the integrated circuit (IC). The accuracy and efficiency of traditional solution methods, such as the finite element method (FEM), are tightly related to the quality and density of mesh construction. Recently, PINN (physics-informed neural network) was proposed as a method for solving differential equations. This method is mesh free and generalizes the process of solving PDEs regardless of the equations’ structure. Therefore, an experiment is conducted to explore the feasibility of PINN in solving electro-thermal coupling problems, w

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24

Ma, Kang, and Huimin Xie. "Coherent gradient sensing method for measuring thermal stress field of thermal barrier coating structures." Theoretical and Applied Mechanics Letters 7, no. 1 (2017): 13–16. http://dx.doi.org/10.1016/j.taml.2017.01.002.

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25

Song, Ki-Chang, Eun-Kee Kim, and In-Jae Chung. "Measurement of thermal diffusion parameters of polystyrene using a thermal field flow fractionation method." Korean Journal of Chemical Engineering 3, no. 2 (1986): 171–75. http://dx.doi.org/10.1007/bf02705029.

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26

Gheni, Mamtimin, Zhen Shi Li, Wei Cheng, Wei Bing Liu, and Lie Yu. "Study on Numerical Simulation Method of Periodic Symmetric Struts Support Coupling with Heat Flow and Solid." Key Engineering Materials 462-463 (January 2011): 985–89. http://dx.doi.org/10.4028/www.scientific.net/kem.462-463.985.

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In this paper, the fluid solid coupling method is used and the FE (Finite Element) analysis is conducted for the PSSS (Periodic Symmetric Struts Support) of the large scale GT(Gas Turbine), and the overall thermal stress and thermal deformation are obtained. From the structure feature of the gas turbine, the initial boundary conditions of the high-temperature gas flow field and thermal deformation are analyzed at first. Then the coupling relationship between fluid and solid two phases is expressed mathematically, and the thermal conductivity is considered for calculation of heat transfer proce

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27

Li, Shi Dong. "A Simple Design Method for Thermal Performance of Parabolic Troughs Solar Field." Advanced Materials Research 827 (October 2013): 57–60. http://dx.doi.org/10.4028/www.scientific.net/amr.827.57.

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In this paper, a simple design method for 1 MW parabolic troughs solar power is discussed.The design of a thermal performance of parabolic troughs solar field was developed in China. In the design process, the following factors were analyzed: beam irradiance,parabolic troughs solar field area, heat loss, inlet temperature and flow rate. The simple method was established with the energy balance analysis base on the simplified heat loss of the parabolic troughs , The model was also used to calculate thermal performance of parabolic troughs solar field. Conclusions of this paper are good referenc

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Liutyi, Rostyslav, Ivan Petryk, Volodymyr Mogylatenko, Vasyl Popovych, and Halyna Shatska. "Research Thermal Fields in the Crystallization Process of Steel Cast Parts." Advances in Materials Science and Engineering 2022 (December 5, 2022): 1–9. http://dx.doi.org/10.1155/2022/7331866.

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In foundry production, the duration of metal crystallization of the cast part, as well as the distribution of the thermal field, are described by systems of analytical equations. There are a number of methods for modeling these processes, but their theoretical basis was formed at the end of the twentieth century, and it needs to be updated and clarified. Therefore, the aim of our work is to develop a new analytical method for researching the distribution of thermal fields in cast parts during crystallization. For the first time, on the basis of own analytical and thermophysical developments, i

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LIAO, ZhiRong, JianHan ZHANG, and ZhiFeng WANG. "Heliostat-field thermal mechanics coupling design method of a high-temperature collector field for next-generation solar thermal power." SCIENTIA SINICA Technologica 50, no. 10 (2020): 1316–28. http://dx.doi.org/10.1360/sst-2020-0084.

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30

Ode, Machiko, and Ikuo Ohnuma. "A thermal fluctuation-based nucleation method for phase-field models." Computational Materials Science 194 (June 2021): 110448. http://dx.doi.org/10.1016/j.commatsci.2021.110448.

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31

Suh, Min-hо, and Tai-yong Lee. "Thermal Field Simulation of LEC Process by Finite Volume Method." IFAC Proceedings Volumes 31, no. 11 (1998): 523–27. http://dx.doi.org/10.1016/s1474-6670(17)44980-9.

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32

Garncarek, Zbigniew, and Jerzy Idzik. "Degree of heterogeneity of thermal field a method of evaluation." International Journal of Heat and Mass Transfer 35, no. 11 (1992): 2769–75. http://dx.doi.org/10.1016/0017-9310(92)90297-6.

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33

Moallem, M., and R. Jafari. "Transformation method in the coupled FE magneto-thermal field analysis." IEEE Transactions on Magnetics 34, no. 5 (1998): 3126–29. http://dx.doi.org/10.1109/20.717732.

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34

Wang, Xiaoyu, Shouhui He, Xiaomin Zhang, and Yufeng An. "On the Thermal Field Characteristics and Evaluation Method of Intelligent Logistics Storage Space." International Journal of Heat and Technology 40, no. 5 (2022): 1340–47. http://dx.doi.org/10.18280/ijht.400529.

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Intelligent logistics can effectively improve the intelligent analysis and decision-making and automatic operation execution capabilities of the logistics system. In order to optimize the design of the thermal environment of the intelligent logistics storage space and ensure the quality of stored goods and the physical and mental health of logistics and warehousing workers, it is especially important to analyze the thermal field characteristics of the intelligent logistics storage space and work out a reasonable and scientific evaluation method. This paper studies the thermal field characteris

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35

Qiu, Wenkai, Keyong Wang, and Peichao Li. "Hybrid Finite Element Analysis of Heat Conduction in Orthotropic Media with Variable Thermal Conductivities." International Journal of Applied Mechanics 12, no. 09 (2020): 2050098. http://dx.doi.org/10.1142/s1758825120500982.

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A hybrid finite element method is proposed for the heat conduction analysis with variable thermal conductivities. A linear combination of fundamental solutions is employed to approximate the intra-element temperature field while standard one-dimensional shape functions are utilized to independently define the frame temperature field along the element boundary. The influence of variable thermal conductivities embeds in the intra-element temperature field via the fundamental solution. A hybrid variational functional, which involves integrals along the element boundary only, is developed to link

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36

Wang, Cheng. "A calculation method of thermal deformation for double helical gear." Mechanics & Industry 20, no. 6 (2019): 612. http://dx.doi.org/10.1051/meca/2019045.

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Thermal deformation caused by gear transmission is an important factor causing gear impact, vibration and partial load. Gear modification can effectively improve the effects caused by thermal deformation. The calculation of thermal deformation is the first problem to be solved before gear modification. This paper takes double helical gear as the research object and a calculation method of thermal deformation is proposed. Firstly, temperature of instantaneous meshing points on the tooth surface are measured and these discrete temperature values are fitted by the linear interpolation. Calculatio

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Sýkorová, Libuše, Oldřich Šuba, and Jana Knedlova. "Laser Micro-Machining and Temperature Field Simulation." Key Engineering Materials 581 (October 2013): 322–25. http://dx.doi.org/10.4028/www.scientific.net/kem.581.322.

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The parametric thermal field analyses were realized by the finite element method. The analysis was run in the software solver COSMOS/DesignSTAR thermal. The thermal module makes possible to realize cases of the thermal dependences on the material properties. Material data can be entered as a function of the temperature. The thermal and physical characteristic of the polymeric materials are changed very expressively. The output of the analysis was temperature distribution described by various colors and assigned values in the spectrogram.

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Vajpayee, Srajan, Tanmay Rawat, and Vandan Bhalala. "Mathematical modeling of thermal enhanced oil recovery method." i-manager's Journal on Mechanical Engineering 13, no. 1 (2023): 9. http://dx.doi.org/10.26634/jme.13.1.19019.

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The demand for petroleum is increasing steadily, with the International Energy Agency (IEA) projecting that the world's petroleum expenditure will rise from 3564 Million Tonnes of Oil Equivalent (MTOE) in 2007 to as much as 5471 MTOE in 2015 and 6301 MTOE in 2030. More than two-thirds of the oil discovered around the world remains unrecovered; 40–70% of the original oil is still left in place after using conventional production techniques, namely, primary and secondary recovery techniques. This paper is based on the use of the Thermal Enhanced Oil Recovery (TEOR) method in a Sudanese oil field

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Zhang, Zhongming, Zihan Zhao, and Xinyu Li. "Research on the Layout of Tower-type Concentrated Solar Power Plants Based on the Ray Tracing Method." Highlights in Science, Engineering and Technology 83 (February 27, 2024): 56–63. http://dx.doi.org/10.54097/yprzy648.

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Tower-type solar thermal power plants are favored by the industry for their high conversion efficiency and good commercial prospects. This paper focuses on the study of the optical energy transfer efficiency and thermal power output of the heliostat field in a tower-type solar thermal power plant. Firstly, based on the motion model of the sun and the earth, the ray tracing method is applied to investigate the path of mirror-reflected rays. Mathematical models are established for the optical efficiency, shading efficiency, cosine efficiency, truncation efficiency, and unit area thermal power ou

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Kovalyov, Stanislav, Yaroslav Kozlov, Pavlo Ryabik, et al. "A METHOD OF MEASURING THERMOPHYSICAL PARAMETERS OF METALS WITH THIN COATINGS APPLIED BY GALVANIC METHOD IN A MAGNETIC FIELD OF LOW INDUCTION." Collection of scholarly papers of Dniprovsk State Technical University (Technical Sciences) 2, no. 45 (2024): 61–72. https://doi.org/10.31319/2519-2884.45.2024.6.

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The work is devoted to the development of a measuring method of the thermal characteristics of metals with thin coatings applied by galvanic method on the base metal, for use in thermal equipment of renewable energy sources. Designed and manufactured laboratory equipment for measuring the thermal characteristics of metals with thin coatings and thin coatings applied to the base material. A study was conducted to determine thermal conductivity and heat capacity on the example of a nickel coating applied to a copper base by galvanic means in a magnetic field of low induction. The calculation res

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Ren, Jin Ke, Shou Yi Li, and Li Juan Zhao. "Research on the Superficial Thermal Insulation Calculation Method of Massive Concrete Structure." Advanced Materials Research 255-260 (May 2011): 1885–90. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.1885.

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In this paper, based on the principle of heat balance, the computing equation of temperature field which used the thermal coefficient, surface coefficient, and heat as the basic parameters of the heat conduction equation is derived, and thereafter the FEM computation procedure about temperature field named RCTS which used the thermal diffusivity as basic parameter is modified. The modified procedure can reasonably reflect the temperature field of composite construction which is made of a great variety of material with different thermal property, and also can simulate the effect of surface heat

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Hoang, Thiem, and Bao Truong. "Probing 3D Magnetic Fields Using Thermal Dust Polarization and Grain Alignment Theory." Astrophysical Journal 965, no. 2 (2024): 183. http://dx.doi.org/10.3847/1538-4357/ad2a56.

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Abstract Magnetic fields are ubiquitous in the Universe and are thought to play an important role in various astrophysical processes. Polarization of thermal emission from dust grains aligned with the magnetic field is widely used to measure the 2D magnetic field projected onto the plane of the sky, but its component along the line of sight is not yet constrained. Here, we introduce a new method to infer 3D magnetic fields using thermal dust polarization and grain alignment physics. We first develop a physical model of thermal dust polarization using the modern grain alignment theory based on

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43

Putranto, Angky Wahyu, Sakinah Hilya Abida, Khodijah Adrebi, and Arta Harianti. "Lignocellulosic Analysis of Corncob Biomass by Using Non-Thermal Pulsed Electric Field-NaOH Pretreatment." Reaktor 20, no. 4 (2020): 183–91. http://dx.doi.org/10.14710/reaktor.20.4.183-191.

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In recent years, the second-generation bioethanol and advanced bio-based material production from biomass are focused on the pretreatment process by separating cellulose components from other components such as lignin and hemicellulose. Therefore, a physicochemical pretreatment method is needed by applying a non-thermal pulsed electric field (PEF) and alkali methods to increase the cellulose availabilities with a short process and low energy input. The aim of this study was to analyze the lignocellulose content of corncob biomass by using non-thermal pulsed electric fields (PEF) and NaOH pretr

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Gong, Ping, Jingjing Zhang, Zhenxia Liu, and Manyuan Li. "Research on Temperature Field Analysis Method of High-Speed Bearing Chamber–Bearing System." Applied Sciences 14, no. 24 (2024): 11769. https://doi.org/10.3390/app142411769.

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The analysis of the temperature field of a high-speed bearing chamber–bearing system is very complex. We used the temperature field analysis method on a 40,000 rpm bearing chamber–bearing system by simulation, which builds on the finite volume method and introduces a decoupling method that separates fluid dynamics from the thermal analysis of the solid temperature field. Firstly, according to bearing operating conditions, the characteristics of the oil–air two-phase distribution in the bearing chamber are determined using the Volume of Fluid (VOF) method. The convective heat transfer boundary

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Wang, Haoyu, Lewei Jiang, and Da Xie. "A study of fixed-sun mirror field alignment based on mathematical methods." Highlights in Science, Engineering and Technology 72 (December 15, 2023): 1311–17. http://dx.doi.org/10.54097/vt5qb130.

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Different shapes of heliostat mirrors and different arrangements of mirror fields are important factors affecting the thermal power output of tower-type solar power plants. In this paper, for a regional heliostat mirror field, a coordinate system of heliostat mirror field is established, through which the incident vector of sunlight, normal vector of heliostat mirror plane is calculated, and the mirror coordinate system is transformed to calculate the optical cosine efficiency, and the discrete lattice point method and ray-tracing method are used to calculate the shadow blocking efficiency and

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Hou, Hua, and Yu Hong Zhao. "Simulation for the Fluctuation Effect on the Dendrites Growth with Phase Field Method." Materials Science Forum 704-705 (December 2011): 1338–48. http://dx.doi.org/10.4028/www.scientific.net/msf.704-705.1338.

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The dendrite growth process was simulated with the Phase Field Model coupled with the fluctuation. The effect of fluctuation intensity on the dendrite morphology and the thermal fluctuation together with the phase field fluctuation on the forming of side branches were investigated. Result shows that with the decrease of thermal fluctuation amplitude, the furcation of dendrites tip also decreased, transverse dendrites become stronger and lengthways dendrites becomes degenerate, Doublon structure disappeared, finally a quite symmetrical dendrites structure formed. Thermal fluctuation can result

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Yue, Junlan, Wang Guan, and Hongyi Lu. "Calculation Method and Simulation Study of Optical Efficiency of Fixed-Heaven Mirror Field." Highlights in Science, Engineering and Technology 110 (July 28, 2024): 102–13. http://dx.doi.org/10.54097/e9tx0703.

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Tower solar thermal power generation is an environmentally friendly new clean energy technology. This paper lays the foundation for constructing a heliostat mirror field with optimal annual average thermal power per unit mirror area by solving the annual average optical efficiency, annual average output thermal power and annual average output thermal power per unit cross-section area for a specific heliostat mirror field. This paper begins with calculating the solar altitude angle and azimuth angle at different times, and derive the normal equation of each heliostat. The specular reflection is

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Li, Yutang, Cenbo Xiong, Qinghua Zhou, Wanyou Yang, and Rongsong Yang. "Thermal Contact Response of a Transversely Isotropic Magneto-Electro-Elastic Coating." Materials 17, no. 1 (2023): 128. http://dx.doi.org/10.3390/ma17010128.

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The magneto-electro-elastic (MEE) medium is a typical intelligent material with promising application prospects in sensors and transducers, whose thermal contact response is responsible for their sensitivity and stability. An effective thermal contact model between a moving sphere and a coated MEE medium with transverse isotropy is established via a semi-analytical method (SAM) to explore its thermal contact response. First, a group of frequency response functions for the magneto-electro-thermo-elastic field of a coated medium are derived, assuming that the coating is perfectly bonded to the s

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Qiang, Sheng, Chao Wu, Nan Nan Zhang, and Zhi Qiang Xie. "A New Measuring and Calculating Method for Concrete Thermal Conductivity with Multipoint." Advanced Materials Research 671-674 (March 2013): 1657–60. http://dx.doi.org/10.4028/www.scientific.net/amr.671-674.1657.

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The real thermal parameters always have inevitable influence on the simulation results of the structure thermal field and stress field in the construction of mass concrete. A new measuring and calculation method for concrete thermal conductivity was put forward. Eight or six sensor points measuring method and calculation formula are present, and the latter is the simplification of the former. Comparing the real thermal conductivity with the calculation result by the new method, it can be seen that the thermal conductivity can be obtained within about 6 day’s age at site and with the accurate d

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Makarova, L. A. "The Conditional Method of Rights Protection in the Field of Heat Supply." Courier of Kutafin Moscow State Law University (MSAL)) 1, no. 1 (2025): 102–9. https://doi.org/10.17803/2311-5998.2025.125.1.102-109.

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The article examines various aspects of the application of the rules on unjust enrichment in the sphere of heat supply (property, obligation and protective), demonstrating a largely formal approach not only to legal relations in the sphere of heat supply, but also to the choice of methods for protecting civil rights. Using a number of indicative legal disputes as an example, the article criticizes the right to assign thermal capacity, which often leads to unjust enrichment; the model for regulating the transfer of thermal energy, in which a related organization bears uncompensated costs for th

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