Journal of Thermodynamics最新文献_第2页

Density and Optical Properties of {Ciprofloxacin Hydrochloride + Aqueous-Ethanol} Mixtures at 30°C {盐酸环丙沙星+水-乙醇}混合物在30℃下的密度和光学性质

Journal of Thermodynamics Pub Date : 2016-01-18 DOI: 10.1155/2016/1575836

S. Deosarkar, S. Birajdar, R. Sawale, M. P. Pawar, A. Thakre

引用次数: 4

Enhancement of Integrated Solar Collector with Spherical Capsules PCM Affected by Additive Aluminum Powder 添加铝粉对球形胶囊型PCM集成太阳能集热器性能的影响

Journal of Thermodynamics Pub Date : 2016-01-17 DOI: 10.1155/2016/1604782

Fatah O. Al Ghuol, K. Sopian, S. Abdullah

引用次数: 4

Elastodynamic Response of Thermal Laser Pulse in Micropolar Thermoelastic Mass Diffusion Medium 热激光脉冲在微极热弹性质量扩散介质中的弹动力学响应

Journal of Thermodynamics Pub Date : 2016-01-04 DOI: 10.1155/2016/6163090

Rajneesh Kumar, Arvind Kumar

引用次数: 8

The Role of Soya Oil Ester in Water-Based PCM for Low Temperature Cool Energy Storage 大豆油酯在低温冷储能水基PCM中的作用

Journal of Thermodynamics Pub Date : 2016-01-01 DOI: 10.1155/2016/5384640

I. Rasta, I. Wardana, N. Hamidi, M. N. Sasongko

引用次数: 6

Thermal-Hydraulics Study of a 75 kWth Aqueous Homogeneous Reactor for 99Mo Production 75 kWth水相反应器生产99Mo的热水力学研究

Journal of Thermodynamics Pub Date : 2015-12-28 DOI: 10.1155/2015/268034

D. M. Pérez, D. Lorenzo, L. P. R. Garcia, Manuel Cadavid Rodríguez, C. D. O. Lira, C. Hernández, Jesús Salomón Llanes

{"title":"Thermal-Hydraulics Study of a 75 kWth Aqueous Homogeneous Reactor for 99Mo Production","authors":"D. M. Pérez, D. Lorenzo, L. P. R. Garcia, Manuel Cadavid Rodríguez, C. D. O. Lira, C. Hernández, Jesús Salomón Llanes","doi":"10.1155/2015/268034","DOIUrl":"https://doi.org/10.1155/2015/268034","url":null,"abstract":"is a very useful radioisotope, which is used in nearly 80% of all nuclear medicine procedures. is produced from 99Mo decay. A potentially advantageous alternative to meeting current and future demand for 99Mo is the use of Aqueous Homogeneous Reactors (AHR). In this paper, a thermal-hydraulics study of the core of a 75 kWth AHR conceptual design based on the ARGUS reactor for 99Mo production is presented. As the ARGUS heat removal systems were designed for working at 20 kWth, the main objective of the thermal-hydraulics study was evaluating the heat removal systems in order to show that sufficient cooling capacity exists to prevent fuel solution overheating. The numerical simulations of an AHR model were carried out using the Computational Fluid Dynamic (CFD) code ANSYS CFX 14. Evaluation shows that the ARGUS heat removal systems working at 75 kWth are not able to provide sufficient cooling capacity to prevent fuel solution overheating. To solve this problem, the number of coiled cooling pipes inside the core was increased from one to five. The results of the CFD simulations with this modification in the design show that acceptable temperature distributions can be obtained.","PeriodicalId":17290,"journal":{"name":"Journal of Thermodynamics","volume":"5 1","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2015-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89785923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Scaling Model of Low-Temperature Transport Properties for Molecular and Ionic Liquids 分子和离子液体低温输运性质的标度模型

Journal of Thermodynamics Pub Date : 2015-12-06 DOI: 10.1155/2015/208486

V. Rogankov

{"title":"Scaling Model of Low-Temperature Transport Properties for Molecular and Ionic Liquids","authors":"V. Rogankov","doi":"10.1155/2015/208486","DOIUrl":"https://doi.org/10.1155/2015/208486","url":null,"abstract":"The universal scaling concept is applied to the low-temperature range of any liquid states and substances located between the melting () and normal boiling () points far away from the critical region. The physical reason to develop such approach is the revealed collapse of all low-temperature isotherms onto the single universal one argued by the model of fluctuational thermodynamics (FT) proposed recently by author. The pressure reduced by the molecular parameters of the effective short-range Lennard-Jones (LJ) potential depends here only on the reduced density. To demonstrate the extraordinary predictive abilities of the developed low-temperature scaling model it has been applied to the prediction of equilibrium and transport (kinetic and dynamic viscosity, self-diffusion, and thermal conductivity) properties not only for molecular liquids but also for molten organic salts termed ionic liquids (ILs). The best argument in favor of the proposed methodology is the appropriate consistency with the scarce experiments prediction of transport coefficients for ILs on the base of universal scaling function constructed for the simplest LJ-like liquid argon. The only input data of any substance for prediction are the linear approximations of -dependent density and isobaric heat capacity taken from the standard measurements at atmospheric pressure.","PeriodicalId":17290,"journal":{"name":"Journal of Thermodynamics","volume":"23 1","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2015-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88346919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effect of Longitudinal-External-Fins on Fluid Flow Characteristics for Wing-Shaped Tubes Bundle in Crossflow 纵-外-翅片对横流翼形管束流体流动特性的影响

Journal of Thermodynamics Pub Date : 2015-11-05 DOI: 10.1155/2015/542405

Sayed Ahmed, O. Mesalhy, Mohamed A. Abdelatief

引用次数: 12

Thermodynamic Modeling of Surface Tension of Aqueous Electrolyte Solution by Competitive Adsorption Model 竞争吸附模型对电解质水溶液表面张力的热力学模拟

Journal of Thermodynamics Pub Date : 2015-11-02 DOI: 10.1155/2015/319704

M. J. Kamali, Zakarya Kamali, G. Vatankhah

引用次数: 3

Thermoacoustic Instability in a Rijke Tube with a Distributed Heat Source 分布热源Rijke管的热声不稳定性

Journal of Thermodynamics Pub Date : 2015-10-27 DOI: 10.1155/2015/949384

Xiaochuan Yang, A. Turan, S. Lei

{"title":"Thermoacoustic Instability in a Rijke Tube with a Distributed Heat Source","authors":"Xiaochuan Yang, A. Turan, S. Lei","doi":"10.1155/2015/949384","DOIUrl":"https://doi.org/10.1155/2015/949384","url":null,"abstract":"A Rijke tube with a distributed heat source is investigated. Driven by the widely existing thermoacoustic instability in lean premixed gas turbine combustors, this work aims to explore the physicochemical underpinning and assist in the elucidation and analysis of this problem. The heat release model consists of a row of distributed heat sources with individual heat release rates. The integrated heat release rate is then coupled with the acoustic perturbation for thermoacoustic analysis. A continuation approach is employed to conduct the bifurcation analysis and capture the nonlinear behaviour inherent in the system. Unlike the conventional approach by the Galerkin method, the acoustic equations are originally discretized using the Method of Lines (MOL) to build up a dynamic system. The model is first validated and shown to yield good predictions with available experimental data. Influences of multiple heat sources, time delay, and heat release distribution are then studied to reveal the extensive nonlinear characteristics involved in the case of a distributed heat source. It is found that distributed heat source plays an important role in determining the stability of a thermoacoustic system.","PeriodicalId":17290,"journal":{"name":"Journal of Thermodynamics","volume":"61 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2015-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78605930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

The Influence of the Punched Delta Wings on Flow Pattern and Heat Transfer Characteristic in a Fin-and-Oval-Tube Heat Exchanger 冲孔三角翼对翅片-椭圆管换热器流态和换热特性的影响

Journal of Thermodynamics Pub Date : 2015-10-26 DOI: 10.1155/2015/368960

A. Boonloi

引用次数: 0