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The formation of pyrochlores during plasma spraying of REO and zirconia oxides powder mixture REO与氧化锆混合粉末等离子喷涂过程中焦绿石的形成
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2019-07-15 DOI: 10.30464/JMEE.2019.3.2.141
T. Kubaszek, W. Nowak, P. Pędrak, Kinga Trybus, Karol Ślemp, M. Góral
{"title":"The formation of pyrochlores during plasma spraying of REO and zirconia oxides powder mixture","authors":"T. Kubaszek, W. Nowak, P. Pędrak, Kinga Trybus, Karol Ślemp, M. Góral","doi":"10.30464/JMEE.2019.3.2.141","DOIUrl":"https://doi.org/10.30464/JMEE.2019.3.2.141","url":null,"abstract":"The pyrochlores are the promising low-thermal conductive materials for Thermal Barrier Coatings applications. In present work the concept of pyrochlore formation during APS spraying of ZrO2 and ReO was analyzed. The specially prepared agglomerated mixtures of ZrO2 with Nd2O3, Yb2O3, Er2O3 and Gd2O3 oxides were plasma sprayed using A60 plasma torch on NiCoCrAlY-type bond coat. The influence of plasma gasses composition on coatings’ microstructure was investigated. The results of XRD phase analysis proved formation of pyrochlores from Gd2O3 +ZrO2 and Nd2O3+ZrO2 mixtures. The formation of Er4O12Zr3 from Er2O3+ ZrO2 mixture as well as Zr3Yb4 from Yb2O3+ ZrO2 powder was detected. The presence of pure rare earth oxides (REO) and zirconia oxides was observed in all types of sprayed coatings. The microstructural assessment showed differences in porosity and thickness of obtained ceramic coatings depending of type of REO oxides. The analysis of results showed that it is possible to obtain pyrochlore ceramic coatings from pure oxides mixture. The plasma energy was not efficient for full formation of pyrochlores, therefore the presence of pure oxides was observed.","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"69 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90649741","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
Impact of addition oxy-hydrogen gas (HHO) on vehicle engines performance and emissions 添加氢氧气体(HHO)对汽车发动机性能和排放的影响
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2019-07-15 DOI: 10.30464/JMEE.2019.3.2.177
T. Nabil, Mohamed M. K. Dawood
{"title":"Impact of addition oxy-hydrogen gas (HHO) on vehicle engines performance and emissions","authors":"T. Nabil, Mohamed M. K. Dawood","doi":"10.30464/JMEE.2019.3.2.177","DOIUrl":"https://doi.org/10.30464/JMEE.2019.3.2.177","url":null,"abstract":"The electrolysis process of water produces oxy-hydrogen (HHO) gas that can be used as an energy source to solve the shortage problem of fossil fuel and reduces the exhaust emissions of greenhouse gases from vehicles engines. In this study, HHO dry cell generator was designed, fabricated and tested experimentally to investigate its performance. The hybrid internal combustion engines using HHO gas is considered one of the most important studied applications. The vehicle engines performance and gas emissions are investigated for two different engines; 150CC with carburetor and 1300CC with Electronic Control Unit (ECU). The results recorded the consumption of the fuel is reduced by 14.8% for 150CC engine and 16.3% for 1300CC engine. HHO gas reduced the emission gases by 33% and 24.5% reduction in CO and 27.4% and 21% reduction in HC for 150CC and 1300CC engines respectively. HHO gas can be efficient used as a secondary fuel for vehicle engines.","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87173771","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
Characteristic of process flow in modular didactic production system for gear trains 齿轮系模块化教学生产系统的工艺流程特征
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2019-07-15 DOI: 10.30464/JMEE.2019.3.2.115
P. Jaskólski, K. Nadolny
{"title":"Characteristic of process flow in modular didactic production system for gear trains","authors":"P. Jaskólski, K. Nadolny","doi":"10.30464/JMEE.2019.3.2.115","DOIUrl":"https://doi.org/10.30464/JMEE.2019.3.2.115","url":null,"abstract":"The aim of the work was to create a technical and organizational design for a modular, didactic system for the production of single-stage gearing. The project presented a project of a production system equipped with miniaturized devices, which are commonly used in industry. Despite the reduced scale, the modules have full functionality and reflect the real world systems. Modular construction of the designed system allows for free modeling of production processes and creates great opportunities for future activities of system expansion and its use. Additionally, the system design assumes the possibility of carrying out scientific and research works in the scope of designing production systems with a high level of automation.","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"63 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88041841","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
Effect of some parameters on the thermo-hydraulic characteristics of a channel heat exchanger with corrugated walls 一些参数对波纹壁通道式换热器热水力特性的影响
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2019-05-28 DOI: 10.30464/JMEE.2019.3.1.53
H. Ameur, Djamel Sahel
{"title":"Effect of some parameters on the thermo-hydraulic characteristics of a channel heat exchanger with corrugated walls","authors":"H. Ameur, Djamel Sahel","doi":"10.30464/JMEE.2019.3.1.53","DOIUrl":"https://doi.org/10.30464/JMEE.2019.3.1.53","url":null,"abstract":"","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90067162","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: 12
Use of hybrid approach in facilitation of design of ship hydrostatic parameters under uncertainty 混合方法在不确定条件下船舶静力参数设计中的应用
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2019-05-28 DOI: 10.30464/JMEE.2019.3.1.31
T. C. Nwaoha, F. Idubor
{"title":"Use of hybrid approach in facilitation of design of ship hydrostatic parameters under uncertainty","authors":"T. C. Nwaoha, F. Idubor","doi":"10.30464/JMEE.2019.3.1.31","DOIUrl":"https://doi.org/10.30464/JMEE.2019.3.1.31","url":null,"abstract":"","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73031827","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
AHP and TOPSIS based selection of aluminium alloy for automobile panels 基于AHP和TOPSIS的汽车覆盖件铝合金选择
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2019-05-28 DOI: 10.30464/JMEE.2019.3.1.43
D. Swapna, C. Rao, D. S. Kumar, S. Radhika
{"title":"AHP and TOPSIS based selection of aluminium alloy for automobile panels","authors":"D. Swapna, C. Rao, D. S. Kumar, S. Radhika","doi":"10.30464/JMEE.2019.3.1.43","DOIUrl":"https://doi.org/10.30464/JMEE.2019.3.1.43","url":null,"abstract":"Automotive industry is a very attractive area for young researchers to do continuous research and also it can be considered as an important thrust area as it is directly related to passenger safety. New developments in automotive sector can be seen in many domains like material selection, design, manufacturing etc. Since wrong selection directly leads to product failure, among these, the proper selection of a particular material can be treat as utmost priority. Hence, the present work discusses a methodology to select the best aluminium alloy for automobile panels among various alternates serving the same purpose. Analytical Hierarchy Process (AHP) and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) methods with entropy weighting criteria are implemented for finding the best material and the results are discussed.","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"72 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76480174","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: 9
In-situ performance evaluation of photovoltaic solar water pumping system in the rural region 农村光伏太阳能抽水系统的现场性能评价
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2019-05-28 DOI: 10.30464/JMEE.2019.3.1.69
Ali O. M. Maka, T. Chaudhary, A. Hasan, Ahmed Gatou
{"title":"In-situ performance evaluation of photovoltaic solar water pumping system in the rural region","authors":"Ali O. M. Maka, T. Chaudhary, A. Hasan, Ahmed Gatou","doi":"10.30464/JMEE.2019.3.1.69","DOIUrl":"https://doi.org/10.30464/JMEE.2019.3.1.69","url":null,"abstract":"The Photovoltaic solar cells convert the radiant energy from the Sun directly to electricity. Solar photovoltaic systems can help to fulfil the entire energy demands in rural areas by harnessing all the opportunities and potentials. The water is an important element in the life of plants, animals and human being. In this paper, it has been studied that solar energy could be used for water pumping applications such as providing water to rural and remote areas. It is being practiced in south Libya. The data is being collected over two years by measuring the water flow on daily basis at pumping head of (35m). In addition, this presents an evaluation of PV system in water pumping and piping systems and estimation of pumping energy cost. The solar pumping systems depend on water flow rate, pumping head and solar irradiance. The system components contain inverter, pump and PV generator. Besides, the effects of the climate and operating conditions on the performance of PV pumping systems has been discussed.","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"571 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77078215","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
An experimental study of cutting fluid on drilling AISI 1040 steel 切削液钻削AISI 1040钢的试验研究
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2019-05-28 DOI: 10.30464/JMEE.2019.3.1.7
M. Alim, Md. Julhash Uddin, M. A. Islam
{"title":"An experimental study of cutting fluid on drilling AISI 1040 steel","authors":"M. Alim, Md. Julhash Uddin, M. A. Islam","doi":"10.30464/JMEE.2019.3.1.7","DOIUrl":"https://doi.org/10.30464/JMEE.2019.3.1.7","url":null,"abstract":"This experimental study investigated the effects of a conventional cutting fluid during drilling cylindrical holes on workpiece materials made of the AISI 1040 steel. Drilling responses were compared between dry and wet (in presence of the cutting fluid) cutting conditions with respect to drilling force, roundness deviation and taper of the hole, and chip morphology. High production machining and drilling with high cutting speed, feed, and depth of cut were found to be inherently associated with the generation of a large amount of heat and high cutting temperature. In a dry condition such high cutting temperature not only reduces dimensional accuracy and tool life but also impairs the roundness deviation and taper of the hole. The use of a conventional cutting fluid, in such a situation, was very effective to reduce the cutting temperature. In a dry cutting condition, numerous tool-wears were found on the drill bits. Drilling in such a dry condition seriously affects roundness of the hole, and chip shape and color. Contrastingly, use of a traditional cutting fluid reduced temperature as well as improved roundness and taper of the hole. It also acted as a lubricate at the tool tip–work surface interface. Overall, the conventional cutting fluid enhanced the quality of the machine work and potentially can increase machine life of drill bits.","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90933027","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
Effect of binder additive on mechanical properties of straw pellet 粘结剂添加剂对秸秆球团力学性能的影响
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2019-05-28 DOI: 10.30464/JMEE.2019.3.1.85
A. Zdanowicz, Juraj Ondruška, J. Chojnacki, P. Križan, B. Berner, M. Matúš
{"title":"Effect of binder additive on mechanical properties of straw pellet","authors":"A. Zdanowicz, Juraj Ondruška, J. Chojnacki, P. Križan, B. Berner, M. Matúš","doi":"10.30464/JMEE.2019.3.1.85","DOIUrl":"https://doi.org/10.30464/JMEE.2019.3.1.85","url":null,"abstract":"Research was carried out into the impact of the content of wheat flour in a mixture with chopped wheat straw and the humidity of this material on the hardness of the pellet obtained from this raw material. The maximum content of wheat flour was 9.6% of the dry matter of the raw material, and the humidity of the raw material was 11.6, 25.7 and 36.0%. An increase of wheat flour content in the whole range examined considerably increased the pellet hardness, while an increase of humidity content in the raw material had an impact on increased hardness up to 25.7% only.","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80252398","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
Genetic algorithms solution to the single-objective machining process optimization time model 遗传算法求解单目标加工过程优化时间模型
JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering Pub Date : 2019-05-28 DOI: 10.30464/JMEE.2019.3.1.13
P. Amiolemhen, J. Eseigbe
{"title":"Genetic algorithms solution to the single-objective machining process optimization time model","authors":"P. Amiolemhen, J. Eseigbe","doi":"10.30464/JMEE.2019.3.1.13","DOIUrl":"https://doi.org/10.30464/JMEE.2019.3.1.13","url":null,"abstract":"Minimum Production Time model of the machining process optimization problem comprising seven lathe machining operations were developed using Genetic Algorithms solution method. The various cost and time components involved in the minimum production cost and minimum production time criteria respectively, as well as all relevant technological/practical constraints were determined. An interactive, user-friendly computer package was then developed in Microsoft Visual Basic.Net environment to implement the developed models. The package was used to determine optimal machining parameters of cutting speed, feed rate and depth of cut for the seven machining operations with twenty-three technological constraints in the conversion of a cylindrical metal bar stock into a finished machined profile. The result of the single-objective machining process optimization models shows that the minimum production time is 21.84 min.","PeriodicalId":32811,"journal":{"name":"JEMMME Journal of Energy Mechanical Material and Manufacturing Engineering","volume":"191 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75019250","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: 1
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