FUOYE Journal of Engineering and Technology最新文献_第7页

Optimal Configuration and Energy Scheduling Algorithm for an Off-Grid Hybrid Microgrid 离网混合微电网的优化配置与能量调度算法

FUOYE Journal of Engineering and Technology Pub Date : 2022-09-14 DOI: 10.46792/fuoyejet.v7i3.913

G. Uzedhe, I. C. Febaide, Austin C. O. Azubogu

{"title":"Optimal Configuration and Energy Scheduling Algorithm for an Off-Grid Hybrid Microgrid","authors":"G. Uzedhe, I. C. Febaide, Austin C. O. Azubogu","doi":"10.46792/fuoyejet.v7i3.913","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i3.913","url":null,"abstract":"Off-grid hybrid microgrid which combines power sources from different technologies based on the availability of such resources and the economic/environmental considerations is gaining global interest due to the unreliable nature of conventional power systems. This research seeks to obtain an optimal configuration and develop a simple energy scheduling algorithm for a modern market using PV/Battery storage/Diesel generator technologies. HOMER software was used in obtaining the optimal configuration and economic/environmental analysis. The development of the scheduling algorithm was done based on the concept of energy flow in an off-grid hybrid microgrid using MATLAB software. An estimated load of 389.79 kW and average daily solar irradiance of 164.09W/m2 was recorded for the study site. The simulation results yielded Net Present Cost (NPC) of $6,405,234.36 and $0.2414 Cost of Energy (COE). A Greenhouse Gas (GHG) emission reduction of 42% was recorded for an off-grid system with solar renewable source. These clearly indicate that the use of optimized hybrid electrical energy resources with simple scheduling could greatly reduce both operational cost and environmental pollution.","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128590815","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

Development and Performance Evaluation of Locally Fabricated Thermal Conductivity Apparatus 国产导热仪的研制与性能评价

FUOYE Journal of Engineering and Technology Pub Date : 2022-09-14 DOI: 10.46792/fuoyejet.v7i3.909

B. E. Anyaegbuna, O. Olayemi, I. K. Adegun, A. O. Onokwai, Ikechukwu D. Anyaegbuna

{"title":"Development and Performance Evaluation of Locally Fabricated Thermal Conductivity Apparatus","authors":"B. E. Anyaegbuna, O. Olayemi, I. K. Adegun, A. O. Onokwai, Ikechukwu D. Anyaegbuna","doi":"10.46792/fuoyejet.v7i3.909","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i3.909","url":null,"abstract":"This paper presents the design and construction of a Guarded Hot Plate (GHP) apparatus for the accurate assessment of thermal conductivities of some Nigerian local building materials. The GHP apparatus is a steady-state measurement device. This apparatus is designed to measure the thermal conductivities of masonry building materials of different compositions. The design features included hot and cold plates fabricated with aluminum plates of 6 mm thickness and varying dimensions; the guard plates also made of aluminum, but of 6.35 mm thickness, forms a rigid enclosure for the specimen all encased in a mild steel housing. The operating measuring temperature range is from -20 for varying specimen thickness up to 60mm. Results are presented for concrete, laterite, and a mixture of cement with laterite, clay, and sand respectively, and it covers a range of thermal conductivities of 0.77W/mK to 1.80 W/mK. Moisture effect on concrete was recorded for the lightweight concrete as the thermal conductivity value reduced from 1.80W/m.K to 1.32W/m.K for the oven-dried concrete sample over a 1.5% (by weight) reduction in water content. The performance evaluation of the locally fabricated GHP apparatus showed a 3.03% percentage difference over ASHRAE’s published data on oven-baked concrete thermal conductivities","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132642161","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

Factor Analysis of Poultry Birds De-Feathering Machines 家禽脱毛机的因素分析

FUOYE Journal of Engineering and Technology Pub Date : 2022-09-14 DOI: 10.46792/fuoyejet.v7i3.829

K. Bello, Olayinka M. Tawose, A. Adama, Bukola Olalekan Bolaji

{"title":"Factor Analysis of Poultry Birds De-Feathering Machines","authors":"K. Bello, Olayinka M. Tawose, A. Adama, Bukola Olalekan Bolaji","doi":"10.46792/fuoyejet.v7i3.829","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i3.829","url":null,"abstract":"Some concerns had been expressed over the success rate of the De-feathering machine (DM) in Nigeria. Therefore, it is imperative to evaluate DM in selected poultry farms in Ekiti State, Nigeria, and consider the factors that inhibit their viability. This study seeks to verify the success rate and identify factors that pose challenges to DM and provide a solution to their intercorrelations. Kendall Coefficient of Concordance (KCC) and Principal Component Analysis (PCA) was the design framework used to investigate the identified factors that influence DM. The KCC was used to analyse the data matrix generated by 12 Judges who ranked the twenty-eight identified factors that influenced DM in ascending order, upon which basis an index of concordance in ranking among the judges was computed as w = 0.70. PCA was used to further analysed questionnaires crafted with the twenty-eight well-ordered factors, purposively selected, using statistisXL version 2021.2 software. Also, the result obtained by PCA indicates that factor reduction was achieved from twenty-eight variables to seven clusters using a scree plot graph. Furthermore, Cost of Material cluster 5 (consisting of dual factors; ‘stainless steel’ and ‘material selection’) wielded the highest factors loading of 0.847 and 0.779 respectively. This study has helped to justify unsatisfactory DM operating costs among poultry farmers in Nigeria and clarify challenges associated with the high cost of material selection in DM design.","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127250703","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

Comparative Analysis of Ensemble Learning and Non-Ensemble Machine Learning Algorithms for Phishing URL Detection 网络钓鱼URL检测中集成学习与非集成机器学习算法的比较分析

FUOYE Journal of Engineering and Technology Pub Date : 2022-09-14 DOI: 10.46792/fuoyejet.v7i3.807

Chiamaka M. Igwilo, Victor Odumuyiwa

引用次数: 1

Performance Evaluation of Selected Adaptive Filters for Acoustic Echo Cancelation over Voice over Internet Protocol 自适应滤波器在网络话音回波消除中的性能评价

FUOYE Journal of Engineering and Technology Pub Date : 2022-09-14 DOI: 10.46792/fuoyejet.v7i3.897

Ibrahim O. Oyetunji, K. Amusa, I. A. Adejumobi, Amidu O. Mustapha

{"title":"Performance Evaluation of Selected Adaptive Filters for Acoustic Echo Cancelation over Voice over Internet Protocol","authors":"Ibrahim O. Oyetunji, K. Amusa, I. A. Adejumobi, Amidu O. Mustapha","doi":"10.46792/fuoyejet.v7i3.897","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i3.897","url":null,"abstract":"Advancement of technology has increased the value of the telecommunications industry. One of the services with the rapid growth is Voice over Internet Protocol (VoIP). However, echo is a common disturbing effect in VoIP calls. Instead of suppressing the presence of echo in the VoIP communication channel, echo cancellation works better in full-duplex mode. This paper compares performances of some selected adaptive filters for cancelation of acoustic echo in VoIP channel. The framework for adaptive echo cancellation is built around finite impulse response and fourth-order infinite impulse response Chebyshev type II filters for the modeling of echo and acoustic environment, respectively. Selected adaptive algorithms for analysis are least mean square, recursive least square and frequency domain adaptive filter. The analysis is carried out in MATLAB 2018a environment. Echo return loss enhancement, error estimate and convergence rate are the performance indices employed for performance comparison of selected adaptive algorithms. It was found that the FDAF algorithm performed best based on computed error return loss enhancement and error estimate figures. In addition, FDAF converges faster than LMS and RLS with average time of 0.026431 s over 2048 filter lengths. Thus, FDAF shows a better promise over the two variants of time domain adaptive algorithm (LMS and RLS) analyzed in this paper.","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132764512","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

Influence of Microbial-Induced Calcite Precipitation on Compaction Characteristics of Bioremediated Crude Oil Contaminated Soil using Composting Technique 微生物诱导方解石降水对堆肥技术生物修复原油污染土壤压实特性的影响

FUOYE Journal of Engineering and Technology Pub Date : 2022-09-14 DOI: 10.46792/fuoyejet.v7i3.901

Musa K. Alhassan, K. Umar

{"title":"Influence of Microbial-Induced Calcite Precipitation on Compaction Characteristics of Bioremediated Crude Oil Contaminated Soil using Composting Technique","authors":"Musa K. Alhassan, K. Umar","doi":"10.46792/fuoyejet.v7i3.901","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i3.901","url":null,"abstract":"Compaction as a soil improvement method of improving the engineering performance of soil was carried out on remediated contaminated soil with the aim of assessing the influence of microbial induced calcite precipitation (MICP) on compaction characteristics. Autochthonous bacteria was identified as Bacillus licheniformis and isolated from oil contaminated soil, collected from Kaduna refinery at Area W where the crude oil was stored. The bacteria were enhanced with organic liquid nutrient extracted from chicken droppings (CD) in stepped concentration of 10, 20, 30, and 40% by dried weight of soil sampleand used to hydrate the contaminated soil. The mixtures were kept in four microcosms for 3 months. The initial total hydrocarbon content was 98g/kg. The bioremediated soil was treated with bacteria solution through MICP technique. The results revealed that sample treated with 30% CD yielded the highest removal efficiency of 89.8% of oil removal. Maximum Dry Density increased with addition of B. licheniformis solution to a peak value of 1.93Mg/cm3 for sample treated with 1.5×108 cell/ml. Optimum moisture content (OMC) increased with increased in B. licheniformis suspension from 14.4 to 15.8% when treated with 1.5×108 and 2.4 ×109 cell/ml respectively. Compaction characteristics of soil treated with 30% CD were greatly improved at 1.5×108 cell/ml bacteria solution using MICP technology and could be used as liner material in waste management.","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126180882","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

Selection of Mass Transfer Models for Competitive Adsorption of Antibiotics Mixture from Aqueous Solution on Delonix regia Pod Activated Carbon 德龙豆荚活性炭对抗生素混合溶液竞争吸附传质模型的选择

FUOYE Journal of Engineering and Technology Pub Date : 2022-09-10 DOI: 10.46792/fuoyejet.v7i3.834

A. Ajani, I. A. Ojo, Wasiat O. Bello, Ameen N. Akinsola, T. Afolabi, A. Alade

{"title":"Selection of Mass Transfer Models for Competitive Adsorption of Antibiotics Mixture from Aqueous Solution on Delonix regia Pod Activated Carbon","authors":"A. Ajani, I. A. Ojo, Wasiat O. Bello, Ameen N. Akinsola, T. Afolabi, A. Alade","doi":"10.46792/fuoyejet.v7i3.834","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i3.834","url":null,"abstract":"The selection of suitable mass transfer models that fit the adsorption of a mixture of antibiotics in aqueous solution onto activated carbon derived from Delonix Regia Pods (DRPs) was examined in this study. The ripe DRPs were cleaned, activated with KOH and then carbonised at 350 °C. The surface chemistry of the raw and the modified DRPs were characterised using Fourier Transform Infrared (FTIR), before being subjected to batch adsorption of a mixture of Amoxicillin (AMO), Tetracycline (TETRA) and Ampicillin (AMP) under the effect of time (0-240 mins), and concentration (20-100 mg/l). The adsorption diffusion mechanisms of the process were analyzed. The spectra of the raw and modified DRP indicate the existence of hydroxyl groups alkanes, unconjugated ketone, carbonyl, and ester groups. McKay has the highest (0.9445) for the mass transfer diffusion model. This indicates that the adsorption rate of the selected antibiotics in the wastewater is regulated and monitored by the internal mass transport processes in accordance with a pore diffusion mechanism.","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123034407","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 Rigid Pavement for Oke- Omi Road, Ibadan, Nigeria 尼日利亚伊巴丹Oke- Omi公路刚性路面设计

FUOYE Journal of Engineering and Technology Pub Date : 2022-08-31 DOI: 10.46792/fuoyejet.v7i3.837

F. Akintayo, Toyin D. Osasona

{"title":"Design of Rigid Pavement for Oke- Omi Road, Ibadan, Nigeria","authors":"F. Akintayo, Toyin D. Osasona","doi":"10.46792/fuoyejet.v7i3.837","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i3.837","url":null,"abstract":"Rigid pavements are often preferred to flexible types due to their higher durability and ease of maintenance also to reduce early road failure and increase its longevity. This study redesigned a deteriorated segment of Oke-Omi flexible road pavement as a rigid pavement. The pavement thickness was derived using the American Association of State Highway and Transportation Officials (AASHTO) design method. A programme using a spreadsheet was developed to facilitate the design process. The sieve analysis result showed that the soil was poorly graded. The soil has a low plasticity index of 28.1% (liquid limit 46.2%, plastic limit 18.1%); the Maximum Dry Density and Optimum Moisture Content were 1999 g/cm3 and 10.8% respectively. The California Bearing Ratio of the soil was 48.43% which shows that the subgrade strength was adequate. The computed Estimated Single Axle Load (ESAL) for both the base year and the projected year are 6.74x106 and 100x106 single axle respectively. The design process yielded the pavement thickness of 240 mm and 380 mm for the base year (2017) and projected year (2037) respectively. A rigid pavement of adequate thickness was designed for the deteriorated segment of the Oke-Omi road. ","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127231847","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

Relative Strength Performance Evaluation of Self-Compacting and High Strength Concrete Beams containing Polyethylene Terephthalate 含聚对苯二甲酸乙二醇酯自密实高强混凝土梁的相对强度性能评价

FUOYE Journal of Engineering and Technology Pub Date : 2022-08-31 DOI: 10.46792/fuoyejet.v7i3.849

J. Wasiu, S. Joseph

{"title":"Relative Strength Performance Evaluation of Self-Compacting and High Strength Concrete Beams containing Polyethylene Terephthalate","authors":"J. Wasiu, S. Joseph","doi":"10.46792/fuoyejet.v7i3.849","DOIUrl":"https://doi.org/10.46792/fuoyejet.v7i3.849","url":null,"abstract":"This research compares the flexural resistance of self-compacting concrete (SCC) and High Strength Concrete (HSC) beams with embedded polyethylene terephthalate (PET) plastic bottle below the neutral axis using concrete grade of C70. Mix design for both SCC and HSC were performed in line with relevant specification. Experimental programme was achieved on both beam specimens. Workability, compressive and flexural strength tests were performed in the laboratory. The workability test revealed a more flowable concrete with the SCC mix than that of the HSC. The compressive strength for the SCC design mix yields a higher value (about 21.5% higher) than that of the HSC. The flexural resistance of each beam specimens (SCC beams and HSC beams) increases with increase in curing days of the beams but higher strength was achieved with SCC beams at 28 days curing. The stress-strain behavior is within the specified acceptable limit (0.002-0.0035) for concrete with grade less than or equal to C50/C60. It is concluded that the replacement of concrete with PET plastic bottles beneath the neutral axis will lead to reduction in volume of materials, reduction in environmental waste, price of removal of the garbage and eco-friendly environs.","PeriodicalId":323504,"journal":{"name":"FUOYE Journal of Engineering and Technology","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116395136","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

Coupled Fixed Points Theorem for Mappings Satisfying a Contractive Condition of Integral Type in Cauchy Spaces 柯西空间中满足整型压缩条件的映射的耦合不动点定理

FUOYE Journal of Engineering and Technology Pub Date : 2022-08-17 DOI: 10.46792/fuoyejet.v7i3.855

S. A. Aniki, M. O. Ajisope, Muhammed Raji, Femi Adegboye

引用次数: 0