FIRAT UNIVERSITY JOURNAL OF EXPERIMENTAL AND COMPUTATIONAL ENGINEERING最新文献_第2页

Characterization of polyurethane produced by polyol synthesized from corn oil 玉米油合成多元醇制备聚氨酯的表征

FIRAT UNIVERSITY JOURNAL OF EXPERIMENTAL AND COMPUTATIONAL ENGINEERING Pub Date : 1900-01-01 DOI: 10.5505/fujece.2022.36855

E. Aydoğmuş, F. Kamişli

{"title":"Characterization of polyurethane produced by polyol synthesized from corn oil","authors":"E. Aydoğmuş, F. Kamişli","doi":"10.5505/fujece.2022.36855","DOIUrl":"https://doi.org/10.5505/fujece.2022.36855","url":null,"abstract":"In this study, biopolyol has been synthesized from corn oil by epoxidation, hydroxylation, neutralization, and purification processes. The rheological properties of both corn oil and polyol obtained from corn oil have been compared. When the variation of viscosity with temperature is examined, it is seen that corn oil-based polyol is more viscous than corn oil. Accordingly, it is thought that the molecular structure of the biopolyol changes, and its molecular weight increases. According to the results obtained, the hydroxyl number of the synthesized polyol is determined as approximately 160 mg KOH/g polyol by the analytical method. The produced polyols have been prepared for polyurethane production after being characterized physically and chemically. The production of polyurethane sponge with a suitable process and method has been realized according to the purpose of use. The approximate density of the produced polyurethane was 40 kg/m and the thermal conductivity coefficient was found to be 0.026 W/m·K. Also, Taguchi method has been used in experimental studies to determine an efficient and economical process in both the polyol synthesis and the polyurethane production.","PeriodicalId":309580,"journal":{"name":"FIRAT UNIVERSITY JOURNAL OF EXPERIMENTAL AND COMPUTATIONAL ENGINEERING","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130416010","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

Using computational fluid dynamics for wave generation and evaluation of results in numerical wave tank modelling 用计算流体力学进行波浪产生及数值波浪槽模拟结果评价

FIRAT UNIVERSITY JOURNAL OF EXPERIMENTAL AND COMPUTATIONAL ENGINEERING Pub Date : 1900-01-01 DOI: 10.5505/fujece.2022.76486

Halil İbrahim Yamaç, A. Koca, Taner Yilmaz

引用次数: 1

The use of mixed algae species as biocathode in membrane-less microbial fuel cell 混合藻类作为生物阴极在无膜微生物燃料电池中的应用

FIRAT UNIVERSITY JOURNAL OF EXPERIMENTAL AND COMPUTATIONAL ENGINEERING Pub Date : 1900-01-01 DOI: 10.5505/fujece.2022.18209

Banu Taşkan

引用次数: 0

Detection of brain tumor with a pre-trained deep learning model based on feature selection using MR images 基于磁共振图像特征选择的预训练深度学习模型检测脑肿瘤

FIRAT UNIVERSITY JOURNAL OF EXPERIMENTAL AND COMPUTATIONAL ENGINEERING Pub Date : 1900-01-01 DOI: 10.5505/fujece.2023.36844

K. Demir, B. Ari, Fatih Demir

引用次数: 2

Numerical determination of the production rate and cumulative production in the constant pressure outer boundary condition 恒压外边界条件下产量和累积产量的数值确定

FIRAT UNIVERSITY JOURNAL OF EXPERIMENTAL AND COMPUTATIONAL ENGINEERING Pub Date : 1900-01-01 DOI: 10.5505/fujece.2022.77487

I. Erhunmwun, Saliu Idaomi Hammed, P. Amiolemhen

{"title":"Numerical determination of the production rate and cumulative production in the constant pressure outer boundary condition","authors":"I. Erhunmwun, Saliu Idaomi Hammed, P. Amiolemhen","doi":"10.5505/fujece.2022.77487","DOIUrl":"https://doi.org/10.5505/fujece.2022.77487","url":null,"abstract":"The flow regime is identified as a steady-state flow if the pressure at every location in the reservoir remains constant. In this work, we have determined the well production rate and cumulative production in a circular reservoir using the Finite Element Method for the condition of constant pressure outer boundary. The reservoir was divided into 4 smaller part known as finite element. These parts were analyzed and later assembled to form the domain of the reservoir. The analysis was done with the assumption that before the well begins production, there was uniform distribution of pressure all through the reservoir. The results obtained from the production rate analysis shows that the dimensionless production rate decreases significantly and later becomes uniform because the withdrawn fluid has been completely replaced. This condition remains throughout the entire life of the reservoir presumably. Also, the result shows that there is a uniform increase in the dimensionless cumulative production as time increases. The result obtained in this work was compared with the results obtained by previous researcher. The comparison shows a strong positive correlation between the two methods with a maximum percentage error of 0.1711 and 0.1864 and a minimum percentage error of 0.0001 and 0.0122 for dimensionless production rate and dimensionless cumulative production respectively. Also, result from previous researcher only state the production rate and cumulative production of the reservoir at a particular time but this work predicts the production rate and cumulative production in the entire reservoir at the same time.","PeriodicalId":309580,"journal":{"name":"FIRAT UNIVERSITY JOURNAL OF EXPERIMENTAL AND COMPUTATIONAL ENGINEERING","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117068642","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

Modeling of a solar air collector heat transfer coefficient with regression algorithms 用回归算法模拟太阳能空气集热器传热系数

FIRAT UNIVERSITY JOURNAL OF EXPERIMENTAL AND COMPUTATIONAL ENGINEERING Pub Date : 1900-01-01 DOI: 10.5505/fujece.2022.43153

Ebru Kavak Akpinar, M. Das

引用次数: 0

Modeling the limiting performance of resistive superconductor fault current limiters for 2G HTS tape 2G高温超导带阻性超导体故障限流器的限流性能建模

FIRAT UNIVERSITY JOURNAL OF EXPERIMENTAL AND COMPUTATIONAL ENGINEERING Pub Date : 1900-01-01 DOI: 10.5505/fujece.2022.32042

B. Yilmaz, M. Gençoglu

引用次数: 2

Investigation of flow properties and activation energy of magnesium lignosulfonate modified bitumen 木质素磺酸镁改性沥青的流动性能及活化能研究

FIRAT UNIVERSITY JOURNAL OF EXPERIMENTAL AND COMPUTATIONAL ENGINEERING Pub Date : 1900-01-01 DOI: 10.5505/fujece.2023.79553

A. Özdemir, Bahadir Yilmaz

引用次数: 0

An examination of synthetic images produced with DCGAN according to the size of data and epoch 根据数据大小和历元对DCGAN生成的合成图像进行检查

FIRAT UNIVERSITY JOURNAL OF EXPERIMENTAL AND COMPUTATIONAL ENGINEERING Pub Date : 1900-01-01 DOI: 10.5505/fujece.2023.69885

Canan Koç, Fatih Özyurt

引用次数: 0

Failure mechanism of a soil slope and stabilization method: a case study 土质边坡破坏机理及稳定方法的实例研究

FIRAT UNIVERSITY JOURNAL OF EXPERIMENTAL AND COMPUTATIONAL ENGINEERING Pub Date : 1900-01-01 DOI: 10.5505/fujece.2022.35744

Mustafa Kanik

{"title":"Failure mechanism of a soil slope and stabilization method: a case study","authors":"Mustafa Kanik","doi":"10.5505/fujece.2022.35744","DOIUrl":"https://doi.org/10.5505/fujece.2022.35744","url":null,"abstract":"In this study, the slope stability problem, which occurred when the projected excavation works of a treatment plant has been started, has been examined. The aim of this study is to determine the conditions causing the slope failure and to make the slope stable again. Then, to ensure the stability of the whole slope after all the excavations work in the project area have been completed. For this purpose, firstly, the topographic features of the slope where the failure took place were determined and a model of the failure condition was created. Field and laboratory studies were used to obtain the data to be used in slope modeling. Models reflecting the current situation were analyzed considering static and dynamic conditions and a safe slope design was created. The analyzes are carried out by Slide V.6.0. software which is based on limit equilibrium methods and Bishop Method was preferred. As a result, it was determined that the reason of the failure occurred was the change of the soil’s physical and mechanical parameters due to precipitation. In the slope stability problem considered, the benching method has been proposed as an improvement method, and additionally, suggestions have been made for the disposal of surface waters by drainage methods.","PeriodicalId":309580,"journal":{"name":"FIRAT UNIVERSITY JOURNAL OF EXPERIMENTAL AND COMPUTATIONAL ENGINEERING","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131491746","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