High Temperatures-high Pressures最新文献_第3页

Quantifying facility performance during thermophysical property measurement of liquid Zr using Electrostatic Levitation 静电悬浮法测定液体Zr热物性时设备性能的量化

IF 1.1 4区工程技术

High Temperatures-high Pressures Pub Date : 2023-01-01 DOI: 10.32908/hthp.v52.1315

Jannatun Nawer, D. Matson

引用次数: 3

Influence of molecular potential type on the accuracy of virial equation of state in describing PVT relations of high temperature and high pressure gas 分子势类型对描述高温高压气体PVT关系的维里状态方程精度的影响

IF 1.1 4区工程技术

High Temperatures-high Pressures Pub Date : 2023-01-01 DOI: 10.32908/hthp.v52.1327

Yue Peng

{"title":"Influence of molecular potential type on the accuracy of virial equation of state in describing PVT relations of high temperature and high pressure gas","authors":"Yue Peng","doi":"10.32908/hthp.v52.1327","DOIUrl":"https://doi.org/10.32908/hthp.v52.1327","url":null,"abstract":"In order to compare the influence of two commonly used molecular potentials: L-J (Lennard-Jones) 6-12 potential and EXP-6 (exponential-6) potential on the accuracy of calculating pressure-volume-temperature (PVT) relations of high temperature and high pressure gas by high order virial equation of state (EOS). In this paper, using the Kihara’s calculation method, the third order dimensionless virial coefficients of EXP- 6 potential (α=12) and EXP-6 potential (α=13) in dimensionless temperature T* =1- 500 are calculated. Using the orthogonal integration method proposed by Barker, the fourth and fifth order dimensionless virial coefficients of L-J 6-12 potential, EXP-6 potential (α=12) and EXP-6 potential (α=13) in T* =1-500 are calculated. By fitting these theoretical values, the corresponding high order virial EOS: VLJ, VEXP612 and VEXP613, are established. Using VLJ, VEXP612 and VEXP613 EOS to calculate the PVT relations of methane, oxygen, carbon dioxide and carbon monoxide under high temperature and high pressure, the accuracy and applicability of the two molecular potentials in the description of PVT relations of high temperature and high pressure gases are analyzed and evaluated by comparison. On this basis, the characteristics of intermolecular interaction in high temperature and high pressure gas are further analyzed.","PeriodicalId":12983,"journal":{"name":"High Temperatures-high Pressures","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69443328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

AlO1.5/SiO2 substitution effect on the viscosity of alkali silicate melts AlO1.5/SiO2取代对碱硅酸盐熔体粘度的影响

IF 1.1 4区工程技术

High Temperatures-high Pressures Pub Date : 2023-01-01 DOI: 10.32908/hthp.v52.1437

S. Sukenaga, R. Ikoma, M. Tashiro, Y. Chiba, S. Kawanishi, H. Shibata

引用次数: 0

Thermophysical properties of the molybdenum alloy TZM (Mo-0.5Ti-0.08Zr-0.02C) over a wide temperature range 钼合金TZM (Mo-0.5Ti-0.08Zr-0.02C)在宽温度范围内的热物理性能

4区工程技术

High Temperatures-high Pressures Pub Date : 2023-01-01 DOI: 10.32908/hthp.v52.1425

Nenad Milošević, Ivana Nikolić, Marc Grelard, Bruno Hay

引用次数: 0

Determining the density of molten Y2O3 using an electrostatic levitation furnace in the International Space Station 利用国际空间站的静电悬浮炉测定熔融Y2O3的密度

IF 1.1 4区工程技术

High Temperatures-high Pressures Pub Date : 2023-01-01 DOI: 10.32908/hthp.v52.1375

H. Oda, Rina Shimonishi, Chihiro Koyama, Tsuyoshi Ito, T. Ishikawa

引用次数: 1

Prediction of critical points for carbon dioxide-based binary mixtures by the Heidemann-Khalil approach 用Heidemann-Khalil方法预测二氧化碳二元混合物的临界点

4区工程技术

High Temperatures-high Pressures Pub Date : 2023-01-01 DOI: 10.32908/hthp.v52.1441

Rui Sun, Hua Tian, Gequn Shu

{"title":"Prediction of critical points for carbon dioxide-based binary mixtures by the Heidemann-Khalil approach","authors":"Rui Sun, Hua Tian, Gequn Shu","doi":"10.32908/hthp.v52.1441","DOIUrl":"https://doi.org/10.32908/hthp.v52.1441","url":null,"abstract":"Prediction of critical point is of great interest for CO2-based binary mixture being the working fluid of power cycle. Compared with empirical correlation, the critical point of mixture can be calculated based on its rigorous thermodynamic criteria, with limited binary interaction parameters and consistency on vapor-liquid equilibrium and other thermodynamic properties. In this study, the critical points of CO2-based binary mixture, applicable for being working fluid of power cycle, including hydrocarbons, fluorocarbons, dimethyl ether, methanol, water and xenon, were studied based on the Peng-Robinson equation of state (PR EOS) with van der Waals (vdW) mixing rule, according to the Heidemann-Khalil approach. By comparing the predicted results with the experimental data in the literature, the applicability of this method to various mixtures is discussed. The characteristics of critical lines, type of phase diagram, and binary interaction parameters of each mixture were analyzed and discussed, and the results show that the Heidemann-Khalil approach is efficient for critical point calculation and prediction of CO2-based binary mixture.","PeriodicalId":12983,"journal":{"name":"High Temperatures-high Pressures","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135712282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ablation threshold and temperature dependent thermal conductivity of high entropy carbide thin films 高熵碳化物薄膜的烧蚀阈值和温度相关热导率

IF 1.1 4区工程技术

High Temperatures-high Pressures Pub Date : 2022-12-02 DOI: 10.32908/hthp.v52.1343

Milena Milich, Kathleen F. Quiambao-Tomko, J. Tomko, J. Maria, P. Hopkins

{"title":"Ablation threshold and temperature dependent thermal conductivity of high entropy carbide thin films","authors":"Milena Milich, Kathleen F. Quiambao-Tomko, J. Tomko, J. Maria, P. Hopkins","doi":"10.32908/hthp.v52.1343","DOIUrl":"https://doi.org/10.32908/hthp.v52.1343","url":null,"abstract":"High entropy carbides (HECs) are a promising new class of ultra-high temperature ceramics that could provide novel material solutions for leading edges of hypersonic vehicles, which can reach temperatures > 3,500 �C and experience extreme thermal gradients. Although the mechanical and thermal properties of HECs have been studied extensively at room temperature, few works have examined HEC properties at high temperatures or considered these materials� responses to thermal shock. In this work, we measure the thermal conductivity of a five-cation HEC up to 1200 �C. We find that thermal conductivity increases with temperature, consistent with trends demonstrated in single-metal carbides. We also measure thermal conductivity of an HEC deposited with varying CH4 flow rate, and find that although thermal conductivity is reduced when carbon content surpasses stoichiometric concentrations, the films all exhibited the same temperature dependent trends regardless of carbon content. To compare the thermal shock resistance of HECs with a refractory carbide, we conduct pulsed laser ablation measurements to determine the fluence threshold the HECs can withstand before damaging. We find that this metric for the average bond strength trends with the theoretical hardness of the HECs as expected.","PeriodicalId":12983,"journal":{"name":"High Temperatures-high Pressures","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46675595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of thermal runaway propagation characteristics of lithium-ion battery module under local high temperature 局部高温下锂离子电池组件热失控传播特性分析

IF 1.1 4区工程技术

High Temperatures-high Pressures Pub Date : 2022-01-01 DOI: 10.32908/hthp.v51.1165

Tong Hu, Fei Ma, Xiaoming Xu

引用次数: 0

Study and comparison of different drying processes of porous particle at high temperature 多孔颗粒高温干燥不同工艺的研究与比较

IF 1.1 4区工程技术

High Temperatures-high Pressures Pub Date : 2022-01-01 DOI: 10.32908/hthp.v51.1103

Souad Messai, L. Chrusciel, O. Al-Hagan, Mona Almuadi, J. Sghaier

{"title":"Study and comparison of different drying processes of porous particle at high temperature","authors":"Souad Messai, L. Chrusciel, O. Al-Hagan, Mona Almuadi, J. Sghaier","doi":"10.32908/hthp.v51.1103","DOIUrl":"https://doi.org/10.32908/hthp.v51.1103","url":null,"abstract":"This work presents a comparative study of four drying processes of a porous media: superheated steam drying at atmospheric pressure (APSSD), humid air (HA), low pressure superheated steam drying (LPSSD) and vacuum drying (VD). A single porous particle model has been developed to simulate the four drying processes. The model is based on the method of averaging volume. Spherical porous particles of coal are used as the model material in this paper. The evaporation rates are equal for these processes in point called the inversion temperature. This temperature was calculated during the constant rate period (CRP) and the falling rate period (FRP). A variation in the values of inversion temperature was observed (363-503 K). The effect of drying parameters such as: particle radius, gas mass flux, permeability, porosity and operating pressure were investigated. Several researchers have reported the noticeable variation of the inversion temperature values according to the drying period used to calculate this key parameter. Our results are compared with those obtained from a front model reported in the literature. A good agreement is found.","PeriodicalId":12983,"journal":{"name":"High Temperatures-high Pressures","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69442874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First-principle study of phonon, elastic and thermodynamic properties of HfSi2 under high pressure 高压下HfSi2的声子、弹性和热力学性质的第一性原理研究

IF 1.1 4区工程技术

High Temperatures-high Pressures Pub Date : 2022-01-01 DOI: 10.32908/hthp.v51.1193

Jinjuan Sun, Yu-Long Han, X. Yao

引用次数: 1