首页 > 最新文献

Engineering Review最新文献

英文 中文
Integration of pricing and inventory decision in a supply chain under vendor-managed inventory with defective items and inspection errors 供应商管理库存中存在缺陷品和检验错误的供应链定价与库存决策的集成
IF 0.4 Q3 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2022-01-01 DOI: 10.30765/er.1610
Esmat Taghipour, M. Seifbarghy, Mostafa Setak
In this paper, the production-inventory-marketing model for a two-stage manufacturer-retailer supply chain under VMI policy with a price-sensitive demand is studied. An imperfect production at the manufacturer and inspection process involving with Type I and II errors at the retailer are considered. We assume that the manufacturer gives products to the retailer in a number of equal-sized shipments. This model is formulated as a Stackelberg game in which the retailer retains a certain degree of autonomy by reserving the right to choose the retail price and the manufacturer determines replenishment frequency, replenishment quantity and wholesale price. The critical supply chain decision factors including the manufacturer’s wholesale price, the retailer’s price, shipment frequencies and number of shipments are determined maximizing the total profit of each member of the supply chain. A solution procedure is proposed to find the Stackelberg game equilibrium. The performance of the model is assessed by a numerical example. The numerical shows that it is more beneficial for both the manufacturer and the retailer when the demand is less price sensitive.
本文研究了具有价格敏感需求的VMI政策下两阶段制造商-零售商供应链的生产-库存-营销模型。考虑了制造商的不完美生产和零售商的第一类和第二类错误的检验过程。我们假设制造商将产品分成等量的几批交付给零售商。该模型被表述为一个Stackelberg博弈,其中零售商保留一定的自主权,保留选择零售价的权利,制造商决定补货频率、补货数量和批发价格。关键的供应链决策因素包括制造商的批发价格、零售商的价格、出货频率和出货数量,这些都是为了使供应链中每个成员的总利润最大化而确定的。提出了一种求解Stackelberg博弈均衡的方法。通过算例对模型的性能进行了评价。数值计算表明,当需求对价格的敏感性较低时,对制造商和零售商都更有利。
{"title":"Integration of pricing and inventory decision in a supply chain under vendor-managed inventory with defective items and inspection errors","authors":"Esmat Taghipour, M. Seifbarghy, Mostafa Setak","doi":"10.30765/er.1610","DOIUrl":"https://doi.org/10.30765/er.1610","url":null,"abstract":"In this paper, the production-inventory-marketing model for a two-stage manufacturer-retailer supply chain under VMI policy with a price-sensitive demand is studied. An imperfect production at the manufacturer and inspection process involving with Type I and II errors at the retailer are considered. We assume that the manufacturer gives products to the retailer in a number of equal-sized shipments. This model is formulated as a Stackelberg game in which the retailer retains a certain degree of autonomy by reserving the right to choose the retail price and the manufacturer determines replenishment frequency, replenishment quantity and wholesale price. The critical supply chain decision factors including the manufacturer’s wholesale price, the retailer’s price, shipment frequencies and number of shipments are determined maximizing the total profit of each member of the supply chain. A solution procedure is proposed to find the Stackelberg game equilibrium. The performance of the model is assessed by a numerical example. The numerical shows that it is more beneficial for both the manufacturer and the retailer when the demand is less price sensitive.","PeriodicalId":44022,"journal":{"name":"Engineering Review","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69598238","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
A novel AMFMEA approach to identify most critical component and decision making approach for combining NDTS for screw compressor 基于AMFMEA的螺杆压缩机关键部件识别方法及组合无损检测决策方法
IF 0.4 Q3 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2022-01-01 DOI: 10.30765/er.1685
Ashish Khaira, R. Dwivedi
To ensure higher reliability, it is necessary to identify the most prominent cause of failure. It was observed in multiple works that most of the researchers used failure mode and effect analysis (FMEA) and failure mode and effect criticality analysis (FMECA) but these approaches contain lots of hindrances. Alternatively, the MATRIX FMEA approach applied to identify the most prominent cause of failure and critical sub-component prone to that particular failure. The matrix FMEA developed for design engineers so that they can identify the potential cause of failures and design-out them in new product design. The central idea of this research is to apply this approach to maintenance, since the potential failure mode and the affected components were known. In most research, a single component such as a cylinder or turbocharger is used for analysis, but this research targets an entire machine. Multiple researchers also highlighted that the combination of non-destructive testing (NDT) provides better results instead of single NDT. Multiple researchers also highlighted the suitability of the analytical hierarchy process (AHP) and preference ranking organization method for enrichment evaluation (PROMETHEE) for decision making (DM). Therefore, this work covered firstly, a novel AMFMEA (AHP-Matrix FMEA) to identify the most critical component of particular machinery located in a heavy industrial setup and secondly, DM approach for combining NDTs. It was observed that the incorporation of AHP in Matrix-FMEA improved its analytical ability and reduced overall computation time. This work also provided the guideline with a detailed procedure for combining NDTs.
为了确保更高的可靠性,有必要确定最突出的故障原因。从多篇文献中可以看出,失效模式与影响分析(FMEA)和失效模式与影响临界性分析(FMECA)是目前研究人员采用的主要方法,但这些方法存在很多缺陷。另外,MATRIX FMEA方法用于识别最突出的故障原因和容易发生该特定故障的关键子部件。为设计工程师开发的矩阵FMEA,使他们能够识别故障的潜在原因并在新产品设计中设计出来。本研究的中心思想是将这种方法应用于维修,因为潜在的故障模式和受影响的部件是已知的。在大多数研究中,单个部件(如气缸或涡轮增压器)被用于分析,但这项研究针对的是整个机器。多位研究人员还强调,综合无损检测(NDT)比单一无损检测(NDT)效果更好。许多研究者还强调了层次分析法(AHP)和偏好排序组织法(PROMETHEE)在决策制定(DM)中的适用性。因此,这项工作首先涵盖了一种新的AMFMEA (ahp矩阵FMEA),用于识别位于重工业设置中的特定机械的最关键部件,其次是用于组合无损检测的DM方法。结果表明,在Matrix-FMEA中引入AHP,提高了Matrix-FMEA的分析能力,减少了整体计算时间。这项工作也提供了一个详细的程序结合ndt指南。
{"title":"A novel AMFMEA approach to identify most critical component and decision making approach for combining NDTS for screw compressor","authors":"Ashish Khaira, R. Dwivedi","doi":"10.30765/er.1685","DOIUrl":"https://doi.org/10.30765/er.1685","url":null,"abstract":"To ensure higher reliability, it is necessary to identify the most prominent cause of failure. It was observed in multiple works that most of the researchers used failure mode and effect analysis (FMEA) and failure mode and effect criticality analysis (FMECA) but these approaches contain lots of hindrances. Alternatively, the MATRIX FMEA approach applied to identify the most prominent cause of failure and critical sub-component prone to that particular failure. The matrix FMEA developed for design engineers so that they can identify the potential cause of failures and design-out them in new product design. The central idea of this research is to apply this approach to maintenance, since the potential failure mode and the affected components were known. In most research, a single component such as a cylinder or turbocharger is used for analysis, but this research targets an entire machine. Multiple researchers also highlighted that the combination of non-destructive testing (NDT) provides better results instead of single NDT. Multiple researchers also highlighted the suitability of the analytical hierarchy process (AHP) and preference ranking organization method for enrichment evaluation (PROMETHEE) for decision making (DM). Therefore, this work covered firstly, a novel AMFMEA (AHP-Matrix FMEA) to identify the most critical component of particular machinery located in a heavy industrial setup and secondly, DM approach for combining NDTs. It was observed that the incorporation of AHP in Matrix-FMEA improved its analytical ability and reduced overall computation time. This work also provided the guideline with a detailed procedure for combining NDTs.","PeriodicalId":44022,"journal":{"name":"Engineering Review","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69598054","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
Fire safety design of pressure vessels 压力容器的防火安全设计
IF 0.4 Q3 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2022-01-01 DOI: 10.30765/er.1615
K. Jármai, I. Sebe, G. Szepesi
A calculation of welded pressure vessels for fire safety is shown in this paper. At the first step, the temperature of the steel walls has been investigated, and the inner liquid pressure and the temperature increase. It is assumed that the safety valve is out of work and cannot reduce the increasing pressure. At the second step, the growing pressure and softening steel represent danger after a critical time. The result will be a safe time when the damage will occur. Three different alternatives have been calculated: the increase of the vessel wall thickness, the increase of the applied steel yield stress, the effect of the thermal coating. The thermal coating was the best alternative. This kind of calculation helps to find the best safe solution.
本文给出了焊接压力容器的防火安全计算方法。在第一步,研究了钢壁的温度,以及内部液体压力和温度的升高。假定安全阀不工作,不能降低不断增加的压力。在第二步中,压力的增加和钢的软化代表了临界时间后的危险。结果将是一个安全的时间,当损坏将发生。计算了三种不同的替代方案:增加容器壁厚,增加钢的屈服应力,热涂层的影响。热涂层是最好的选择。这种计算有助于找到最安全的解决方案。
{"title":"Fire safety design of pressure vessels","authors":"K. Jármai, I. Sebe, G. Szepesi","doi":"10.30765/er.1615","DOIUrl":"https://doi.org/10.30765/er.1615","url":null,"abstract":"A calculation of welded pressure vessels for fire safety is shown in this paper. At the first step, the temperature of the steel walls has been investigated, and the inner liquid pressure and the temperature increase. It is assumed that the safety valve is out of work and cannot reduce the increasing pressure. At the second step, the growing pressure and softening steel represent danger after a critical time. The result will be a safe time when the damage will occur. Three different alternatives have been calculated: the increase of the vessel wall thickness, the increase of the applied steel yield stress, the effect of the thermal coating. The thermal coating was the best alternative. This kind of calculation helps to find the best safe solution.","PeriodicalId":44022,"journal":{"name":"Engineering Review","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69597793","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
The method of parametric decision trees in the analysis of automatic transmission 参数决策树在自动变速器分析中的应用
IF 0.4 Q3 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2022-01-01 DOI: 10.30765/er.1802
A. Deptuła
Current applications of graph theory involve gear modeling for dynamic analysis, kinematic analysis, synthesis, structural analysis, optimization of gear chains, and automatic design based on the so-called graph grammars. Some tasks can be solved only with methods from graph theory, for example, the enumeration of design solutions. The purpose of modelling an automatic transmission with graphs can be versatile, namely: determining the ratio of individual gears, analyzing the speed and acceleration of individual rotational elements. At a later stage, the methods of decision logical trees can be used to analyze the functional schemes of selected gears. However, for graphs that are transmission models, tree structures that play parametrically can be used. This allows for the generalization and extension of the algorithmic approach.
图论目前的应用包括齿轮动力学分析建模、运动分析、综合、结构分析、齿轮链优化以及基于所谓图语法的自动设计。有些任务只能用图论的方法来解决,例如,设计解的枚举。用图形对自动变速器建模的目的可以是多种多样的,即:确定各个齿轮的传动比,分析各个转动元件的速度和加速度。在后期,决策逻辑树的方法可以用来分析所选齿轮的功能方案。然而,对于传输模型的图,可以使用参数化的树结构。这允许算法方法的泛化和扩展。
{"title":"The method of parametric decision trees in the analysis of automatic transmission","authors":"A. Deptuła","doi":"10.30765/er.1802","DOIUrl":"https://doi.org/10.30765/er.1802","url":null,"abstract":"Current applications of graph theory involve gear modeling for dynamic analysis, kinematic analysis, synthesis, structural analysis, optimization of gear chains, and automatic design based on the so-called graph grammars. Some tasks can be solved only with methods from graph theory, for example, the enumeration of design solutions. The purpose of modelling an automatic transmission with graphs can be versatile, namely: determining the ratio of individual gears, analyzing the speed and acceleration of individual rotational elements. At a later stage, the methods of decision logical trees can be used to analyze the functional schemes of selected gears. However, for graphs that are transmission models, tree structures that play parametrically can be used. This allows for the generalization and extension of the algorithmic approach.","PeriodicalId":44022,"journal":{"name":"Engineering Review","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69598399","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
Proposition of a method to design tailor-made knowledge management systems for small and medium enterprises 提出了一种为中小企业量身定制知识管理系统的设计方法
IF 0.4 Q3 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2022-01-01 DOI: 10.30765/er.1379
Tapissier Edouard, Mantelet Fabrice, Aoussat Améziane
The aim of this paper is to propose a knowledge management system design method for small and medium enterprises that addresses the problems encountered on the existing ones. A literature review highlighted 5 main concepts that have a crucial role in knowledge management system design. To take these recommendations into account, a knowledge management system design method was designed. It uses the small and medium enterprises characteristics, needs and problems to select adapted knowledge management tools and practices, and offers a comprehensive and tailor-made knowledge management system. This method was used to design a knowledge management system for a high-tech small and medium enterprises from the navigation sector. It allowed to choose from the adapted knowledge management tools and practices and to write a set of requirements for the knowledge management system while taking the user into account, thus easing the knowledge management system implementation and ensuring its sustainability.
本文旨在针对现有中小企业知识管理系统设计中存在的问题,提出一种面向中小企业的知识管理系统设计方法。一篇文献综述强调了在知识管理系统设计中起关键作用的5个主要概念。考虑到这些建议,设计了一种知识管理系统设计方法。根据中小企业的特点、需求和存在的问题,选择与之相适应的知识管理工具和实践,为中小企业量身定制一套全面的知识管理系统。将该方法应用于某航运业高新技术中小企业的知识管理系统设计。它允许从适应的知识管理工具和实践中进行选择,并在考虑用户的同时为知识管理系统编写一套需求,从而简化了知识管理系统的实施并确保了其可持续性。
{"title":"Proposition of a method to design tailor-made knowledge management systems for small and medium enterprises","authors":"Tapissier Edouard, Mantelet Fabrice, Aoussat Améziane","doi":"10.30765/er.1379","DOIUrl":"https://doi.org/10.30765/er.1379","url":null,"abstract":"The aim of this paper is to propose a knowledge management system design method for small and medium enterprises that addresses the problems encountered on the existing ones. A literature review highlighted 5 main concepts that have a crucial role in knowledge management system design. To take these recommendations into account, a knowledge management system design method was designed. It uses the small and medium enterprises characteristics, needs and problems to select adapted knowledge management tools and practices, and offers a comprehensive and tailor-made knowledge management system. This method was used to design a knowledge management system for a high-tech small and medium enterprises from the navigation sector. It allowed to choose from the adapted knowledge management tools and practices and to write a set of requirements for the knowledge management system while taking the user into account, thus easing the knowledge management system implementation and ensuring its sustainability.","PeriodicalId":44022,"journal":{"name":"Engineering Review","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69597572","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
Effect of normalization on ductility and corrosion resistance of API 5L-X65 PIPE 正火处理对API 5L-X65钢管延展性和耐腐蚀性的影响
IF 0.4 Q3 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2022-01-01 DOI: 10.30765/er.1652
Yurianto Yurianto, A. E. Purkuncoro, Padang Yanuar, Taufiqur Rokhman
This research studies the effect of normalization on ductility and corrosion resistance of API 5L X65 pipe. Normalization conducted at a temperature of 900 °C with a holding time of 30, 60, 90, 120, and 150 minutes, followed by cooling down to a room temperature by using an external air. Corrosion testing of normalized specimens was performed using seawater as a corrosive environment, -and specimens were also tested for microhardness to determine their mechanical properties. Then, these test specimens were compared with specimens that did not undergo normalization in terms of their microstructure, hardness, and other mechanical properties. The specimens were analyzed by using an Energy Dispersive X-ray (EDX) Spectroscopy to determine the microstructure grain boundary, chemical composition and microcracking of the metal specimens. The results showed that the base metal hardness of API 5L X65 steel pipe fluctuated and tended to decrease. The highest hardness was obtained in specimens without normalizing, and the lowest in normalizing specimens. The highest corrosion rate occurred in specimens without normalizing, and the lowest in specimens with normalizing. Typical corrosion results of seawater on APL 5L-65 pipe are cracking and pitting.
研究了正火处理对API 5L X65钢管延展性和耐腐蚀性的影响。在900°C的温度下进行规范化,保温时间为30,60,90,120和150分钟,然后使用外部空气冷却到室温。将归一化后的试样在海水中进行腐蚀测试,并对试样进行显微硬度测试,以确定其力学性能。然后,将这些试样与未经过正态化处理的试样在显微组织、硬度和其他力学性能方面进行比较。利用能量色散x射线(EDX)光谱分析了金属试样的微观组织、晶界、化学成分和微裂纹。结果表明:API 5L X65钢管的母材硬度呈波动趋势,并有降低的趋势;未正火处理的硬度最高,正火处理的硬度最低。未进行正火处理的腐蚀速率最高,进行正火处理的腐蚀速率最低。海水对APL 5L-65管道的典型腐蚀表现为开裂和点蚀。
{"title":"Effect of normalization on ductility and corrosion resistance of API 5L-X65 PIPE","authors":"Yurianto Yurianto, A. E. Purkuncoro, Padang Yanuar, Taufiqur Rokhman","doi":"10.30765/er.1652","DOIUrl":"https://doi.org/10.30765/er.1652","url":null,"abstract":"This research studies the effect of normalization on ductility and corrosion resistance of API 5L X65 pipe. Normalization conducted at a temperature of 900 °C with a holding time of 30, 60, 90, 120, and 150 minutes, followed by cooling down to a room temperature by using an external air. Corrosion testing of normalized specimens was performed using seawater as a corrosive environment, -and specimens were also tested for microhardness to determine their mechanical properties. Then, these test specimens were compared with specimens that did not undergo normalization in terms of their microstructure, hardness, and other mechanical properties. The specimens were analyzed by using an Energy Dispersive X-ray (EDX) Spectroscopy to determine the microstructure grain boundary, chemical composition and microcracking of the metal specimens. The results showed that the base metal hardness of API 5L X65 steel pipe fluctuated and tended to decrease. The highest hardness was obtained in specimens without normalizing, and the lowest in normalizing specimens. The highest corrosion rate occurred in specimens without normalizing, and the lowest in specimens with normalizing. Typical corrosion results of seawater on APL 5L-65 pipe are cracking and pitting.","PeriodicalId":44022,"journal":{"name":"Engineering Review","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69597955","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
A sector in-plane finite element for analysis of multi-layer cylinders exposed to pressure and thermal loading 基于扇形面内有限元的多层圆柱体压力和热载荷分析
IF 0.4 Q3 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2022-01-01 DOI: 10.30765/er.1698
Asma Bouzeriba, C. Bouzrira
In this paper, analysis of multi-layer cylinders exposed to pressure and thermal loading is considered using a sector element based on the strain approach. Materials in cylinder layers have been assumed to be linearly elastic, homogeneous, and isotropic. The sector in-plane finite element employed is defined in the polar coordinate system with three degrees of freedom at each corner node (the two translations and the in-plane rotation). The results of displacement and stresses obtained in the present paper are compared with the analytical solutions, and a good accuracy shown.
本文采用基于应变法的扇形单元对受压力和热载荷作用的多层圆柱体进行了分析。圆柱体层中的材料被假定为线性弹性、均匀性和各向同性。所采用的扇形面内有限元在极坐标系中定义,每个角节点(两次平移和面内旋转)有三个自由度。本文得到的位移和应力计算结果与解析解进行了比较,表明了较好的精度。
{"title":"A sector in-plane finite element for analysis of multi-layer cylinders exposed to pressure and thermal loading","authors":"Asma Bouzeriba, C. Bouzrira","doi":"10.30765/er.1698","DOIUrl":"https://doi.org/10.30765/er.1698","url":null,"abstract":"In this paper, analysis of multi-layer cylinders exposed to pressure and thermal loading is considered using a sector element based on the strain approach. Materials in cylinder layers have been assumed to be linearly elastic, homogeneous, and isotropic. The sector in-plane finite element employed is defined in the polar coordinate system with three degrees of freedom at each corner node (the two translations and the in-plane rotation). The results of displacement and stresses obtained in the present paper are compared with the analytical solutions, and a good accuracy shown.","PeriodicalId":44022,"journal":{"name":"Engineering Review","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69598097","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
The effects of ultrasound and electrocoagulation on removal of manganese from wastewater 超声和电絮凝法去除废水中锰的影响
IF 0.4 Q3 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2022-01-01 DOI: 10.30765/er.1734
H. Posavčić, D. Vouk, I. Halkijevic
In this paper the effect of ultrasound and electrocoagulation on the removal of manganese from synthetic wastewater was investigated. It was shown that 20 kHz ultrasound alone is not very efficient for manganese removal, but it enhances the efficiency of electrocoagulation. It was also shown that settling has a great effect on the electrocoagulation process because it stabilizes the flocs. A total of four laboratory-scale experiments were conducted, and the optimal experiment included 10 minutes of ultrasound and 10 minutes of electrocoagulation with iron electrodes. Under these conditions, 89.0 % of the manganese was removed with an operating cost of 0.13 EUR/mg Mn. Adding the cost of replacing the immersed ultrasonic probe, the total operating cost increased 3000-fold, making the immersed ultrasonic probe method unviable for large-scale application.
研究了超声和电絮凝对合成废水中锰的去除效果。结果表明,单独使用20 kHz超声去除锰的效率不高,但可以提高电絮凝的效率。实验还表明,沉降对电凝过程有很大的影响,因为它可以稳定絮凝体。共进行了4次实验室规模的实验,最佳实验为10分钟超声和10分钟铁电极电凝。在此条件下,锰的去除率为89.0%,运行成本为0.13欧元/毫克锰。加上更换浸入式超声探头的成本,总运行成本增加了3000倍,使得浸入式超声探头法无法大规模应用。
{"title":"The effects of ultrasound and electrocoagulation on removal of manganese from wastewater","authors":"H. Posavčić, D. Vouk, I. Halkijevic","doi":"10.30765/er.1734","DOIUrl":"https://doi.org/10.30765/er.1734","url":null,"abstract":"In this paper the effect of ultrasound and electrocoagulation on the removal of manganese from synthetic wastewater was investigated. It was shown that 20 kHz ultrasound alone is not very efficient for manganese removal, but it enhances the efficiency of electrocoagulation. It was also shown that settling has a great effect on the electrocoagulation process because it stabilizes the flocs. A total of four laboratory-scale experiments were conducted, and the optimal experiment included 10 minutes of ultrasound and 10 minutes of electrocoagulation with iron electrodes. Under these conditions, 89.0 % of the manganese was removed with an operating cost of 0.13 EUR/mg Mn. Adding the cost of replacing the immersed ultrasonic probe, the total operating cost increased 3000-fold, making the immersed ultrasonic probe method unviable for large-scale application.","PeriodicalId":44022,"journal":{"name":"Engineering Review","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69598120","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
Size and efficiency based comparison of kinematically equivalent two-carrier planetary gear trains 基于运动等效双载行星轮系尺寸和效率的比较
IF 0.4 Q3 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2022-01-01 DOI: 10.30765/er.1989
Željko Vrcan, V. Ivanov, Angel Alexandrov, M. Isametova
The subject of this paper is a two-carrier planetary gear train (PGT) which was developed for a specific purpose. This PGT may be used for applications in which a negative transmission ratio in the range -3…-143 is required. In this case, the mechanical and dimensional properties of the PGT have been analyzed for nominal negative transmission ratios of -30 and -40. All possible combinations of simple component PGT ideal torque ratios providing those transmission ratios were obtained. Only the combinations providing the minimum radial dimensions of the PGT assembly were selected. Subsequent analysis has shown that the PGT radial dimensions will be minimized when the ratio of the reference diameters of the planetary unit ring gears is close to unity, meaning that the PGT casing will be cylindrical rather than stepped. This paper also provides an overview of the DVOBRZ software package used to synthesize the different gearbox layouts for the required transmission ratio, combined with a basic introduction to single speed two-carrier PGTs for better understanding. The DVOBRZ software was used to select all the acceptable gearboxes were selected from the set of generated PGTs according to the criteria of minimum dimensions and acceptable efficiency range. This set of PGTs was checked for kinematic feasibility and construction concepts were created for feasible layouts.
本文的主题是为特定目的而开发的双载行星轮系(PGT)。该PGT可用于需要负传动比在-3…-143范围内的应用。在这种情况下,PGT的机械和尺寸特性已经分析了名义负传动比-30和-40。在提供这些传动比的情况下,得到了所有可能的简单组件PGT理想转矩比组合。只选择提供最小径向尺寸的PGT组件组合。随后的分析表明,当行星单元环齿轮的参考直径比接近于1时,PGT的径向尺寸将最小,这意味着PGT的壳体将是圆柱形的,而不是阶梯形的。本文还概述了用于合成所需传动比的不同变速箱布局的DVOBRZ软件包,并结合对单速双载波pgt的基本介绍,以便更好地理解。采用DVOBRZ软件根据最小尺寸和可接受效率范围的标准,从生成的一组pgt中选择所有可接受的变速箱。这组pgt被检查为运动学可行性和施工概念创建为可行的布局。
{"title":"Size and efficiency based comparison of kinematically equivalent two-carrier planetary gear trains","authors":"Željko Vrcan, V. Ivanov, Angel Alexandrov, M. Isametova","doi":"10.30765/er.1989","DOIUrl":"https://doi.org/10.30765/er.1989","url":null,"abstract":"The subject of this paper is a two-carrier planetary gear train (PGT) which was developed for a specific purpose. This PGT may be used for applications in which a negative transmission ratio in the range -3…-143 is required. In this case, the mechanical and dimensional properties of the PGT have been analyzed for nominal negative transmission ratios of -30 and -40. All possible combinations of simple component PGT ideal torque ratios providing those transmission ratios were obtained. Only the combinations providing the minimum radial dimensions of the PGT assembly were selected. Subsequent analysis has shown that the PGT radial dimensions will be minimized when the ratio of the reference diameters of the planetary unit ring gears is close to unity, meaning that the PGT casing will be cylindrical rather than stepped. This paper also provides an overview of the DVOBRZ software package used to synthesize the different gearbox layouts for the required transmission ratio, combined with a basic introduction to single speed two-carrier PGTs for better understanding. The DVOBRZ software was used to select all the acceptable gearboxes were selected from the set of generated PGTs according to the criteria of minimum dimensions and acceptable efficiency range. This set of PGTs was checked for kinematic feasibility and construction concepts were created for feasible layouts.","PeriodicalId":44022,"journal":{"name":"Engineering Review","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69598388","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
Load frequency control scheme for a microgrid system with the application of hTLO-DE algorithm 基于hTLO-DE算法的微电网系统负荷频率控制方案
IF 0.4 Q3 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2022-01-01 DOI: 10.30765/er.1925
I. Koley, A. Datta, G. Panda
Load frequency control (LFC) is a crucial feature of electric power systems to maintain a balance between power supply and load demand, thus avoiding a deviation of the grid frequency. The present work aims to implement an effective LFC scheme for a microgrid system consisting of a diesel generator (DEG), a wind turbine generator (WTG) and a battery storage system. Proportional-integral-double-derivative (PIDD) controllers are used to implement the proposed LFC scheme. The controller parameters are computed using an innovative hybrid teaching-learning-optimization differential-evaluation (hTLO-DE) algorithm. The main scope of the work lies in application of hTLO-DE optimized PIDD controllers in DEG-WTG-battery storage based MG system. The results obtained with PIDD controllers are compared with those obtained with the traditional PI and PID controllers. A critical analysis shows that the PIDD controller can provide better dynamic responses in terms of settling time and magnitude of oscillations compared to PI and PID controllers. The frequency responses of the system are studied under different scenarios of generation and load variations, which establishes the robustness of the proposed PIDD-based LFC scheme.
负荷频率控制(LFC)是电力系统保持电力供应和负荷需求平衡,从而避免电网频率偏差的重要特性。目前的工作旨在实现一个由柴油发电机(DEG)、风力发电机(WTG)和电池存储系统组成的微电网系统的有效LFC方案。采用比例-积分-双导数(PIDD)控制器实现LFC方案。控制器参数的计算采用一种创新的混合式教学-学习-优化微分评估(hTLO-DE)算法。本文的主要工作范围是在基于deg - wtg -电池存储的MG系统中应用hTLO-DE优化pid控制器。将PID控制器与传统PI控制器和PID控制器的控制结果进行了比较。关键分析表明,与PI和PID控制器相比,PID控制器在稳定时间和振荡幅度方面可以提供更好的动态响应。研究了系统在不同发电和负荷变化情况下的频率响应,验证了基于pid的LFC方案的鲁棒性。
{"title":"Load frequency control scheme for a microgrid system with the application of hTLO-DE algorithm","authors":"I. Koley, A. Datta, G. Panda","doi":"10.30765/er.1925","DOIUrl":"https://doi.org/10.30765/er.1925","url":null,"abstract":"Load frequency control (LFC) is a crucial feature of electric power systems to maintain a balance between power supply and load demand, thus avoiding a deviation of the grid frequency. The present work aims to implement an effective LFC scheme for a microgrid system consisting of a diesel generator (DEG), a wind turbine generator (WTG) and a battery storage system. Proportional-integral-double-derivative (PIDD) controllers are used to implement the proposed LFC scheme. The controller parameters are computed using an innovative hybrid teaching-learning-optimization differential-evaluation (hTLO-DE) algorithm. The main scope of the work lies in application of hTLO-DE optimized PIDD controllers in DEG-WTG-battery storage based MG system. The results obtained with PIDD controllers are compared with those obtained with the traditional PI and PID controllers. A critical analysis shows that the PIDD controller can provide better dynamic responses in terms of settling time and magnitude of oscillations compared to PI and PID controllers. The frequency responses of the system are studied under different scenarios of generation and load variations, which establishes the robustness of the proposed PIDD-based LFC scheme.","PeriodicalId":44022,"journal":{"name":"Engineering Review","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69598615","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
期刊
Engineering Review
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1