Advanced Engineering Forum最新文献_第7页

Synthesis and Characterization of Novel Nickel Coated Carbon Fibre Rod Reinforced Aluminium Metal Matrix Composite Material for using in Automobile Application 新型汽车用镀镍碳纤维棒增强铝基复合材料的合成与表征

Advanced Engineering Forum Pub Date : 2022-06-28 DOI: 10.4028/p-ik37iv

Rahul D. Sandhanshiv, Dilip M. Patel

{"title":"Synthesis and Characterization of Novel Nickel Coated Carbon Fibre Rod Reinforced Aluminium Metal Matrix Composite Material for using in Automobile Application","authors":"Rahul D. Sandhanshiv, Dilip M. Patel","doi":"10.4028/p-ik37iv","DOIUrl":"https://doi.org/10.4028/p-ik37iv","url":null,"abstract":"A carbon fibre (CF) in the form of a rod (continuous fibre) was used as reinforcement due to its superior strength and modulus properties. Carbon fibre rod reinforced aluminium 6061 alloy metal matrix composite material was synthesized using the stir casting liquid metallurgy route. Aluminium based metal matrix composite materials are light in weight. Very few researchers were worked on carbon fibre rod reinforced metal matrix composites (MMC). Electroless nickel deposition on carbon fibre rods (2mm and 3mm diameter) were carried out for improvement in wettability. On carbon fibre rods, the effectiveness of electroless nickel coating was validated using SEM (scanning electron microscopy) and EDAX (Energy Dispersive X-Ray Spectroscopy) analysis. A further coating thickness of nickel was improved using nickel electroplating. In a cast iron mould, nickel-coated carbon fibre rods were arranged in a circular pattern. Completely degassed molten aluminium 6061 alloy was poured in cast iron mould at 600-700 °C. The enhancement in Tribological and mechanical properties is always a prerequisite for technological advancement in automobile sector. From synthesized composites (11.11% Vol. CF and 25% Vol. CF reinforcement) specimen were prepared for density tests, bulk and microhardness tests, friction and wear tests. Synthesized composite has low density, increased bulk and microhardness, low coefficient of friction and reduced wear rate in comparison with aluminium 6061 alloy. Keywords: Carbon Fibre (CF) rod, MMC, Nickel coating, Casting, Mechanical, Tribological","PeriodicalId":7184,"journal":{"name":"Advanced Engineering Forum","volume":"28 1","pages":"1 - 14"},"PeriodicalIF":0.0,"publicationDate":"2022-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89845208","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

New Requirements Regarding the Qualification and Certification of the Inspection Personnel in the Welding Field. Harmonization with the European Qualification Framework (EQF) 焊接领域检验人员资格认证的新要求。与欧洲资格框架(EQF)协调

Advanced Engineering Forum Pub Date : 2022-06-28 DOI: 10.4028/p-8z420d

H. Daşcău, Marius Oproiu

引用次数: 0

Effect of Phosphonium-Based Ionic Liquid Content in Curing Epoxy Resin/Carbon Nanotubes Systems 磷基离子液体含量对环氧树脂/碳纳米管固化体系的影响

Advanced Engineering Forum Pub Date : 2022-06-28 DOI: 10.4028/p-241zv9

D. F. dos Santos, B. G. Soare

{"title":"Effect of Phosphonium-Based Ionic Liquid Content in Curing Epoxy Resin/Carbon Nanotubes Systems","authors":"D. F. dos Santos, B. G. Soare","doi":"10.4028/p-241zv9","DOIUrl":"https://doi.org/10.4028/p-241zv9","url":null,"abstract":"The effect of varying the content of the ionic liquid based on phosphonium, tributyl (ethyl)-phosphonium diethylphosphate, was studied acting with a dual role as a curing and dispersing agent to obtain multiwalled carbon nanotube nanocomposites (MWCNT) dispersed in epoxy resin (ER). The effect of this ionic liquid in the mixtures was evaluated to obtain a better dispersion of the charge in the epoxy matrix, and consequently the impact on the curing of the nanocomposites. The effectiveness of the dispersion was evaluated morphologically by scanning electron microscopy (SEM). The non-covalent functionalization of nanotube nanocomposites (CNT) with IL resulted in better reinforcing effect and higher conductivity, as well as the use of high-speed speed mixer combined with acetone, culminated in better mixing and processing conditions. Under these conditions, the composite showed high electrical conductivity and good dynamic-mechanical properties. The systems with 10phr of the ionic liquid showed the highest of ΔH (heat of reaction), and these values can be attributed to the better adjustment of the stoichiometry, favoring the crosslinking of the resin. the systems with 10phr of the ionic liquid showed the highest of ΔH (heat of reaction), and these values can be attributed to the better adjustment of the stoichiometry, favoring the crosslinking of the resin. However, the systems prepared with 30phr of ionic liquid showed lower values of ΔH, possibly due to its excess in the mixture, culminating in the imbalance of resin/hardener stoichiometry. This can be seen in the scanning electron microscopy (SEM), whose sample cured with 30phr showed cracks, due to the excess of the crosslinking agent causing incomplete curing, making the material more fragile.","PeriodicalId":7184,"journal":{"name":"Advanced Engineering Forum","volume":"2 1","pages":"15 - 21"},"PeriodicalIF":0.0,"publicationDate":"2022-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85726143","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

Implementing a Renar Accredited System for the Qualification of Welding Execution Personnel. Experience and Overview of 25 Years of Activity in Romania 实施焊接作业人员资格认可制度。罗马尼亚25年活动的经验和概况

Advanced Engineering Forum Pub Date : 2022-06-28 DOI: 10.4028/p-ntfp07

Marius Oproiu, Cristian Micut, H. Daşcău

引用次数: 0

Laboratory and Field Performance of Two In-House Developed Metal Biomass Cookstoves 两种自行开发的金属生物质炉灶的实验室和现场性能

Advanced Engineering Forum Pub Date : 2022-06-28 DOI: 10.4028/p-z83f87

K. Sutar, Hitesh Karkoti, J. Z. Khan, Mujahid Momin, Himanshu Rohaj

{"title":"Laboratory and Field Performance of Two In-House Developed Metal Biomass Cookstoves","authors":"K. Sutar, Hitesh Karkoti, J. Z. Khan, Mujahid Momin, Himanshu Rohaj","doi":"10.4028/p-z83f87","DOIUrl":"https://doi.org/10.4028/p-z83f87","url":null,"abstract":"Present work reports thermal and emission performance of in-house developed natural and forced draft metal biomass cookstoves. Laboratory as well as field tests are performed on the cookstoves. Experiments are performed on natural draft metal cookstove in laboratory at different air supply hole openings. Decrease in average input power and average thermal efficiency is observed between 3.74-3.43 kW and 31.14-29.45% respectively. Variation in average emission factor for carbon monoxide (CO) is found to be between 3.5-9.9 g/MJd. Emissions of Oxides of Nitrogen (NOx) are found to be varying between 1 ppm to 13.5 ppm without any specific trend. Experiments are performed on forced draft metal cookstove in laboratory on two fan speeds. The average input power and average thermal efficiency vary between 3.4-3.0 kW and 36.9-42.5% respectively. Variation in average emission factor for CO is found to be between 1.8-4.5 g/MJd and that of average NOx emissions between 16.8-2.5 ppm.During field tests, amount of fuel consumption and emissions of CO for both the cookstoves is compared with traditional cookstoves used by two families. In case of Family A, there is a saving in fuel consumption by 19% and 40% with natural draft and forced draft metal cookstoves respectively. The corresponding values for Family B are 5 % and 24% respectively. In case of Family A, there is decrease in CO emissions by 89% and 86% with natural draft and forced draft metal cookstoves respectively. The corresponding values for Family B are 76% and 82% respectively.","PeriodicalId":7184,"journal":{"name":"Advanced Engineering Forum","volume":"27 1","pages":"41 - 53"},"PeriodicalIF":0.0,"publicationDate":"2022-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88033157","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

Strength Properties and Microstructure of Sandcrete Blocks Incorporated with Maize Straws 玉米秸秆掺入混凝土砌块的强度特性与微观结构

Advanced Engineering Forum Pub Date : 2022-06-28 DOI: 10.4028/p-kgoezq

S. Odeyemi, M. A. Anifowose, S. Bello, Zainab Tolu Giwa, U. Wilson

引用次数: 1

Modalities and Requirements Regarding the Qualification and Certification of Welding Personnel for Thermoplastic Materials 热塑性材料焊接人员资格认证的方式和要求

Advanced Engineering Forum Pub Date : 2022-06-28 DOI: 10.4028/p-4w2t23

Marius Cocard

引用次数: 0

Heat Transfer under Magnetohydrodynamics Flow of Nanofluids Past an Inclined Plate with Non Uniform Boundary Conditions 纳米流体通过非均匀边界条件下斜板的流动

Advanced Engineering Forum Pub Date : 2022-06-28 DOI: 10.4028/p-028445

A. Ferrah, Amina Bouaziz, M. N. Bouaziz

{"title":"Heat Transfer under Magnetohydrodynamics Flow of Nanofluids Past an Inclined Plate with Non Uniform Boundary Conditions","authors":"A. Ferrah, Amina Bouaziz, M. N. Bouaziz","doi":"10.4028/p-028445","DOIUrl":"https://doi.org/10.4028/p-028445","url":null,"abstract":"This paper deals with natural thermal convection combined with the mass transfer of nanoparticles occurring in the boundary layers of a nanofluid subjected to magnetohydrodynamics. The wall consists of an inclined plate is considered according to a temperature as well as the volume fraction of the nanoparticles varying as the power of the axial coordinate. In addition, internal heat generation/absorption is taken into account in the mathematical formulation. The governing partial differential equations based on Buongiorno's approach are transformed into a set of ordinary differential equations. The two-level method of no-similarity equations is used to achieve higher accuracy. The whole calculation procedure is implemented using a limit value problem program written according to the Matlab computer language that applies the Lobbato IIIa finite difference method. The obtained results have revealed that small variations of the boundary conditions with the axial coordinate become very significant on the local Nusselt number and the local Sherwood number for nanoparticles. Moreover, a better heat transfer has been obtained with a larger S. However, a trade-off between desired heat transfer rate and level of reduced skin friction should be scheduled.","PeriodicalId":7184,"journal":{"name":"Advanced Engineering Forum","volume":"74 1","pages":"23 - 39"},"PeriodicalIF":0.0,"publicationDate":"2022-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80172090","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

Optimal Control Strategy for Energy Management of PV-Diesel-Battery Hybrid Power System of a Stand-Alone Micro-Grid 独立微电网PV-Diesel-Battery混合动力系统能量管理最优控制策略

Advanced Engineering Forum Pub Date : 2022-06-28 DOI: 10.4028/p-ehzuj2

P. Gbadega, O. Balogun

{"title":"Optimal Control Strategy for Energy Management of PV-Diesel-Battery Hybrid Power System of a Stand-Alone Micro-Grid","authors":"P. Gbadega, O. Balogun","doi":"10.4028/p-ehzuj2","DOIUrl":"https://doi.org/10.4028/p-ehzuj2","url":null,"abstract":"New control algorithms are required to deal with the intermittent, stochastic, and distributed nature of the generation and new consumption patterns. Control of micro-grids poses significant challenges that need to be addressed through advanced control techniques. This paper investigates an optimal control strategy that efficiently manages a stand-alone residential micro-grid comprising renewable and non-renewable energy sources. An adaptive model predictive control (AMPC) algorithm is implemented for choosing an optimal mode and set of inputs for the system to track both a constant and load-varying power demand profile. The problem to be solved by the AMPC control algorithm is to perform an optimal power reference tracking problem, where the consumption of energy from the diesel generator is minimized while maximizing the efficiency of the storage bank. The objective of the optimal control scheme is for the generation to meet the demand, minimize the use of fossil fuels and ensure the energy storage is always maintained around a nominal point such that it is not over-depleted. Therefore, the main goal is to maximize the use of renewable sources and minimize traditional sources. The design and simulation of the plant model and the AMPC controller are carried out on the MATLAB/Simulink environment.","PeriodicalId":7184,"journal":{"name":"Advanced Engineering Forum","volume":"11 1","pages":"55 - 70"},"PeriodicalIF":0.0,"publicationDate":"2022-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89957857","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: 3

New Formula for Calculating Local Scour around Bridge Piers 桥墩局部冲刷计算新公式

Advanced Engineering Forum Pub Date : 2022-04-04 DOI: 10.4028/p-9xgtbb

Mohamed Annad, A. Lefkir

引用次数: 2