Novel Perspectives of Engineering Research Vol. 1最新文献

Composite Stabilization and Model Prediction of Geotechnical Parameters of Lateritic Soils within the Coastal Plains of Akwa Ibom State, Nigeria 尼日利亚阿夸伊博姆州沿海平原红土复合稳定及岩土参数模型预测

Novel Perspectives of Engineering Research Vol. 1 Pub Date : 2021-10-25 DOI: 10.9734/bpi/nper/v1/13761d

E. Udo

引用次数: 0

Study on Load Capacity Limits of Flanged Pressure Vessel Nozzles 法兰压力容器喷嘴承载能力极限研究

Novel Perspectives of Engineering Research Vol. 1 Pub Date : 2021-10-25 DOI: 10.9734/bpi/nper/v1/10515d

W. Stikvoort

{"title":"Study on Load Capacity Limits of Flanged Pressure Vessel Nozzles","authors":"W. Stikvoort","doi":"10.9734/bpi/nper/v1/10515d","DOIUrl":"https://doi.org/10.9734/bpi/nper/v1/10515d","url":null,"abstract":"When designing pressure vessels, it is quite important to know the loads exerted on the nozzle by the connecting pipe work. However the piping reactions computed by the piping structural analysis are often not available at the vessel design stage. To overcome this problem, the pressure vessel must be exclusively designed for the internal design pressure, after which the permissible external loads for the nozzlevessel intersection as well as for the nozzle-piping connection (flange) can be calculated. In this way the load limits and load capacity of the nozzle can be determined and are available at an early stage to the piping designer (pipe stress analyst). Successively it is the responsibility of the piping designer to ensure that the piping reactions are kept within the permissible load limits of the pressure vessel nozzle. The advantage of this approach is that the imposed loads does not necessitate thickening of the pressureretaining shell of the vessel nor require additional reinforcing pads around the nozzle neck. Moreover it should be noted that by increasing the vessel shell thickness or adding a reinforcing pad, the nozzle becomes more rigid and therefore a better approximation to a fixed point or anchor thus effectively eliminating the advantage of any nozzle flexibility. This approach avoids remedial work of pressure vessels and/or pipework at late stages of a project, which for sure has negative impact on project costs and schedule.","PeriodicalId":350864,"journal":{"name":"Novel Perspectives of Engineering Research Vol. 1","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133084522","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: 0

Mosaic as an Element of the Synthesis of Architecture and Monumental Art in the Architecture of Volgograd and Volzhsky: An Advanced Research 马赛克作为伏尔加格勒和伏尔日斯基建筑与纪念性艺术融合的元素:一项新研究

Novel Perspectives of Engineering Research Vol. 1 Pub Date : 2021-10-25 DOI: 10.9734/bpi/nper/v1/13850d

Valentine Serebryanaya, I. Shevchuk

引用次数: 0

Study on Soft Phonons and Mode Grüneisen Parameters in a Framework Material H3[Co(CN)6] 框架材料H3[Co(CN)6]中软声子和模粒<e:1> neisen参数的研究

Novel Perspectives of Engineering Research Vol. 1 Pub Date : 2021-10-25 DOI: 10.9734/bpi/nper/v1/13499d

K. Mishra

{"title":"Study on Soft Phonons and Mode Grüneisen Parameters in a Framework Material H3[Co(CN)6]","authors":"K. Mishra","doi":"10.9734/bpi/nper/v1/13499d","DOIUrl":"https://doi.org/10.9734/bpi/nper/v1/13499d","url":null,"abstract":"Last several years, the author has been involved in studies of phonons and their structure-properties correlation on several advanced functional materials that included not only flexible framework materials, Te-based oxides, and perovskites but also recently established low dimensional 2D materials, namely graphene, TiS3 nanosheet and nanofiber, VSe2 nanosheet, SnO2 nanoparticles. In this book chapter, the phonons and mode Gruneisen parameters of a flexible framework compound H3[Co(CN)6] is presented in an elaborate manner. H3[Co(CN)6] belongs to a class of flexible framework structured cyanides that exhibit negative thermal expansion along c-axis. In-situ high-pressure Raman spectroscopic studies on H3[Co(CN)6] in a diamond-anvil cell were carried out under hydrostatic pressure from ambient to 11 GPa. From the evolution of Raman spectra, splitting of bands and discontinuous changes in the pressure dependence of band frequencies, a phase transition from trigonal-monoclinic is identified at 2.3 GPa. In contrast to other bands, a lattice band at 140 cm-1 and the Co-CN deformation band at 348 cm-1 were soften with increase in pressure. Mode Gruneisen parameters (yi) were obtained for the ambient trigonal phase using the pressure dependencies of Raman mode frequencies (d(Omega)/dP). Absence of Raman band with flat spectral feature was found as the compound amorphized around 11 GPa.","PeriodicalId":350864,"journal":{"name":"Novel Perspectives of Engineering Research Vol. 1","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130222066","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: 0

Study on the Effect of Inclination of Cutoff Wall Beneath Gravity Dams on Uplift Force 重力坝下防渗墙倾角对上拔力影响的研究

Novel Perspectives of Engineering Research Vol. 1 Pub Date : 2021-10-25 DOI: 10.9734/bpi/nper/v1/1969c

F. Salmasi, J. Abraham

引用次数: 0

Methods of Determination of Predominant Vibration Periods for Non-homogeneous Multilayer Ground Sites 非均匀多层地基主要振动周期的确定方法

Novel Perspectives of Engineering Research Vol. 1 Pub Date : 2021-10-25 DOI: 10.9734/bpi/nper/v1/13115d

E. Y. Khachiyan

引用次数: 1

Determining the Influence of the Number of Passes in the Shell and Tubes Condenser Thermal Performance Using R134a Refrigerant and Applying the Concepts of Efficiency and Effectiveness 采用R134a制冷剂确定管壳式冷凝器通道数对热性能的影响及效率与效果概念的应用

Novel Perspectives of Engineering Research Vol. 1 Pub Date : 2021-10-25 DOI: 10.9734/bpi/nper/v1/1916c

E. Nogueira

引用次数: 0