Key Engineering Materials最新文献_第5页

Hydrogen Production from Rice Husk: Techno-Economic and Life Cycle Analysis 稻壳制氢：技术经济和生命周期分析

Key Engineering Materials Pub Date : 2024-03-27 DOI: 10.4028/p-8bu2vn

Khiang Chung Kong, C. L. M. Eh, A. N. T. Tiong, J. Kansedo, W. P. Q. Ng, C. H. Lim, B. S. How

引用次数: 0

Comparative Study on Performance of Passive and Active Solar Dryer 被动式和主动式太阳能干燥器性能比较研究

Key Engineering Materials Pub Date : 2024-03-27 DOI: 10.4028/p-2gfc9w

Eakpoom Boonthum, Sirichai Sirichana, Aphainun Namkhet, U. Teeboonma

{"title":"Comparative Study on Performance of Passive and Active Solar Dryer","authors":"Eakpoom Boonthum, Sirichai Sirichana, Aphainun Namkhet, U. Teeboonma","doi":"10.4028/p-2gfc9w","DOIUrl":"https://doi.org/10.4028/p-2gfc9w","url":null,"abstract":"Performance of solar dryers were tested. In the past, to study the efficiency of solar dryers. A dryer with one drying chamber was built and tested by changing the conditions. In each experiment, the solar irradiance value is different, which can cause the results to be inaccurate. Therefore, in this study, a number of drying chambers are designed according to the number of experimental conditions to be studied during the same period. To reduce factors that will cause discrepancies in the experimental results. The solar dryer with 4 drying chambers was constructed in 1 unit and tested the performance of passive solar dryer (PSD) and active solar dryer (ASD). Air flowrate of ASD varied at 0.03 m3/s (ASD0.03), 0.06 m3/s (ASD0.06) and 0.09 m3/s (ASD0.09). Pork was selected as testing material with initial moisture content of 265% dry basis. Drying rate, solar dryer efficiency and specific energy consumption are criteria to evaluate of solar dryer performance. Result from the experimental was found that the performance of PSD is lowest compared with ASDs. Furthermore, it was revealed that the drying rate of ASD0.06 is higher than that for PSD, ASD0.03 and ASD0.09 by 22% 10% and 8%, respectively. Results from the experimental reveal the ASDs performance are higher than that of PSD. Moreover, it was found that the drying rate of ASD0.06 is higher than that for PSD, ASD0.03 and ASD0.09 by 22% 10% and 8%, respectively. Whereas, specific energy consumption of ASD0.06 is lower than that PSD, ASD0.03 and ASD0.09 by 26%, 11% and 9%, respectively. Finally, it was also found that solar dryer efficiency of PSD, ASD0.03, ASD0.06 and ASD0.09 are 11.68%, 13.34%, 14.89% and 13.73%, respectively.","PeriodicalId":507685,"journal":{"name":"Key Engineering Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140376640","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

Design of Experiment for Determining Setting Parameter on Plasma Arc Machining for Stainless Steel Plate Cutting with Full Factorial Design 采用全因子设计确定不锈钢板切割等离子弧加工设置参数的实验设计

Key Engineering Materials Pub Date : 2024-03-27 DOI: 10.4028/p-bxul3c

Restiawan Ahmaddani, Khusna Dwijayanti

{"title":"Design of Experiment for Determining Setting Parameter on Plasma Arc Machining for Stainless Steel Plate Cutting with Full Factorial Design","authors":"Restiawan Ahmaddani, Khusna Dwijayanti","doi":"10.4028/p-bxul3c","DOIUrl":"https://doi.org/10.4028/p-bxul3c","url":null,"abstract":"Plasma Arc Machining is a metal cutting where conductor metal such as sheets metal are cut with plasma arc. Problem in plasma arc machining is the result of cutting has burr which is quite large due to the heat, resulting the surface roughness on the workpiece. This research aim to minimize the surface roughness of the stainless steel plate uses a design of experiment method with full factorial design. In this research, there are three factors, that are torch height, cutting speed, and electric current. Each factor has three levels. By using full factorial design, the number of treatments are 33=27 trials. The results of the research on data processing analysis of variance show that the most influential factor on surface roughness is cutting speed with contribution value of 90.76% followed by two other factors, that is height torch with contribution value of 2.42% and electric current with contribution value of 0.23% and contribution value of noise by 6.59%. Then based on data processing robust design the optimum combination of parameters is obtained by using setting 1 mm torch height, 2400 mm/min cutting speed, and 30 A electric current. Based on the confirmation experiments, experiments with optimum parameter combinations can reach a gap noise of 2.283 dB. Therefore, the design of experiment for determining parameter setting plasma arc machining can determine the optimum combination of parameters to minimize the surface roughness.","PeriodicalId":507685,"journal":{"name":"Key Engineering Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140374102","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

Catalytic Pyrolysis of Biomass Waste Mixture over Activated Carbon and Zeolite Catalyst for the Production Bio Oil 在活性炭和沸石催化剂上催化热解生物质废料混合物以生产生物油

Key Engineering Materials Pub Date : 2024-03-27 DOI: 10.4028/p-9igsfm

H. Prasetiawan, D. S. Fardhyanti, H. Hadiyanto, W. Fatriasari

引用次数: 0

Study Effect of Holding Time at Post Weld Heat Treatment (PWHT) on Joint Dissimilar Welding ASTM 335 P11 to ASTM 304L under Controlled Condition 研究焊后热处理 (PWHT) 保温时间在受控条件下对 ASTM 335 P11 与 ASTM 304L 异种焊接接头的影响

Key Engineering Materials Pub Date : 2024-02-23 DOI: 10.4028/p-f9s6hs

Sabandi Ismadi, W. Winarto

引用次数: 0

Evaluating the Accuracy of Finite Element Analysis in Predicting Mechanical Properties of Additively Manufactured Parts 评估有限元分析在预测快速成型部件机械性能方面的准确性

Key Engineering Materials Pub Date : 2024-02-23 DOI: 10.4028/p-j9ohwj

Chanawee Promaue, Suchandrima Das, Aydin Nassehi

引用次数: 0

Effect of Weight Percent Mg and Heat Treatment on the Mechanical Properties of Al10Si Aluminum Alloy Casting Products Car Chassis Materials 镁的重量百分比和热处理对 Al10Si 铝合金铸造产品机械性能的影响汽车底盘材料

Key Engineering Materials Pub Date : 2024-02-23 DOI: 10.4028/p-ehyzw3

J. J. Numberi, J. Joni, E. I. Bhiftime, Rando Tungga Dewa, Ariyo N.S. Permata, Wahyu D. Lestari, M. S. Utama R., M. I. Atami, Annisa Ariesta, Muhammad Raihan Atallah Yasir

{"title":"Effect of Weight Percent Mg and Heat Treatment on the Mechanical Properties of Al10Si Aluminum Alloy Casting Products Car Chassis Materials","authors":"J. J. Numberi, J. Joni, E. I. Bhiftime, Rando Tungga Dewa, Ariyo N.S. Permata, Wahyu D. Lestari, M. S. Utama R., M. I. Atami, Annisa Ariesta, Muhammad Raihan Atallah Yasir","doi":"10.4028/p-ehyzw3","DOIUrl":"https://doi.org/10.4028/p-ehyzw3","url":null,"abstract":"Innovation in the automotive field is now growing rapidly. New materials are considered to be incorporated in automotive design if they have economic and vehicle performance benefits. This research investigates the change of the Magnesium (Mg) addition and heat treatment to the mechanical properties and microstructure of the car chassis prototype with Al10Si Aluminum alloy base material. The process of casting using the High-Pressure Die Casting method. Variation of Mg (3, 4, 5 wt%) to increase the strength of mechanical properties of Al10Si aluminum alloy material. In the casting process, the first Al10Si heated up to 690°C. Mg is incorporated into the heating furnace, then stirred by a mechanical stirrer. Stirring speed of 90 rpm and stirring time of 120 seconds. After it has poured into the mold, the casting temperature is 740°C. Then cools the room to room temperature 39°C. Then performed, heat treatment, using the method of age hardening and artificial aging. The test results prove that the hardening heat treatment makes the grain size smaller. Small grain size, then increase the strength of the material with the addition of Mg elements.","PeriodicalId":507685,"journal":{"name":"Key Engineering Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140437367","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

Materials Properties and Additive Manufacturing 材料特性与增材制造

Key Engineering Materials Pub Date : 2024-02-23 DOI: 10.4028/b-vkmbg9

Dao Hua Zhang, P. Chutima, Sheila Tobing, A. Sutjipto

引用次数: 0

Fatigue Resistance Assessment of WAAM Carbon Steel WAAM 碳钢的抗疲劳性评估

Key Engineering Materials Pub Date : 2024-02-23 DOI: 10.4028/p-c3fgtr

M. Hietala, T. Rautio, M. Jaskari, M. Keskitalo, A. Järvenpää

{"title":"Fatigue Resistance Assessment of WAAM Carbon Steel","authors":"M. Hietala, T. Rautio, M. Jaskari, M. Keskitalo, A. Järvenpää","doi":"10.4028/p-c3fgtr","DOIUrl":"https://doi.org/10.4028/p-c3fgtr","url":null,"abstract":"This study presents a comprehensive exploration of the fatigue resistance of wire arc additive manufacturing (WAAM) carbon steel for lattice structures. Microstructural analysis unveils substantial grain dimensions characterized by a distinctive crystallographic configuration. These grains exhibit equiaxed characteristics, demonstrating uniform dimensions in all directions. The prevailing microstructure is dominated by ferrite grains. In tandem with the microstructural insights, hardness evaluations were conducted in correspondence with the part's deposition direction. The analysis of these measurements unveiled a consistent base material hardness of approximately 159 HV. The uniform distribution of hardness profiles supports the deduction that WAAM carbon steel uniformly embodies strength attributes. This congruence aligns harmoniously with the uniform microstructure evident in microscopic analyses. The yield strength of the WAAM carbon steel exhibits higher values in the build direction, peaking at 392 MPa. The bending fatigue tests revealed a fatigue limit approximating 180 MPa for WAAM carbon steel, evident in both the build and deposition directions. Fatigue strength of WAAM carbon steel mirrors that observed for reference material S355MC steel sheet.","PeriodicalId":507685,"journal":{"name":"Key Engineering Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140436001","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

Towards Smart Additive Manufacturing: Cost and Component Complexity 迈向智能增材制造：成本与组件复杂性

Key Engineering Materials Pub Date : 2024-02-23 DOI: 10.4028/p-l3avnd

Faris Tarlochan, Shehadeh Alsendibad

引用次数: 0