Pub Date : 2023-01-30DOI: 10.24018/ejeng.2023.8.1.2970
A. Shabani, Darjon Dhamo, D. Panxhi, Orion Zavalani
Rapid growth of buildings energy consumption encourages to take measures to improve energy efficiency by actors involved in the field. One of the approaches developed last decades consists in energy management through energy prediction. These approaches engage machine learning algorithms, which focus on predicting energy consumption based on past-observed data. But there are also cases when this information is missing so in this paper, we focus on solving the problem when measured data are not available. Initially, we develop an electrical home appliance simulator, which reflects their energy consumption and occupant behavior. Each of the considered device is modelled using an electrical circuit analogy. Then aggregating single appliance energy consumption from simulator, total power consumption data is generated. Synthetic data are feed to an Artificial Neural Network algorithm to learn consumption pattern and to predict next hour energy consumption.
{"title":"Modelling and Simulation of Residential Load Profiles as an Approach for Data-Driven Prediction","authors":"A. Shabani, Darjon Dhamo, D. Panxhi, Orion Zavalani","doi":"10.24018/ejeng.2023.8.1.2970","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.1.2970","url":null,"abstract":"Rapid growth of buildings energy consumption encourages to take measures to improve energy efficiency by actors involved in the field. One of the approaches developed last decades consists in energy management through energy prediction. These approaches engage machine learning algorithms, which focus on predicting energy consumption based on past-observed data. But there are also cases when this information is missing so in this paper, we focus on solving the problem when measured data are not available. Initially, we develop an electrical home appliance simulator, which reflects their energy consumption and occupant behavior. Each of the considered device is modelled using an electrical circuit analogy. Then aggregating single appliance energy consumption from simulator, total power consumption data is generated. Synthetic data are feed to an Artificial Neural Network algorithm to learn consumption pattern and to predict next hour energy consumption.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89100760","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}
Pub Date : 2023-01-29DOI: 10.24018/ejeng.2023.8.1.2965
B. D. Wembe, Rolland Djomi, N. Konai, G. Ntamack, F. A. Tsopmo, O. Olubusoye, L. Meva’a
The widely use of papers and for the promotion of conservation of the forest ecosystem in making papers from the falling of trees. This work is focused on the realization of paper and its mechanical properties. Water hyacinth (Eichornia crassipes) is aquatic plant with a high growth rate that usually cover the river surface and has an impact to the environment and other living things. The work done was to produce a paper from water hyacinth through cutting, grinding, refining, molding, the bleaching process and drying process we obtained different papers. In the realization process of the papers, we have used Hydrogen peroxides for the bleaching process to obtain white paper (Bleached paper). In our case we have both the bleached and the unbleached paper. Papers were successfully produced under experimental condition. Mechanical properties of each paper were investigated. The various density of paper water hyacinth plant of the bleached and unbleached was 21.68 g/m3 and 26.37 g/m3 respectively, average tensile rupture stress 1.337MPa & 0.405MPa and young modulus was found to be 36.278MPa and 17.604MPa, the elongation at break 4.744% and 2.879%, average moisture content of 4.82% to 9.59% and 3.57% to 6.62% respectively for the Unbleached and Bleached paper water hyacinth plant. For this reason, Unbleached Paper with certain different strength ranges could be considered to be applied as packaging, seedling pot, mulching or insulating material in advance application. The use of water hyacinth as biomass with the used of the roots and leaf shows a bulky structure. The study concludes that water hyacinth is a potential fiber for paper production especially in areas where it is abundant, but the tensile strength of unbleached paper is more than the bleached paper. So that the paper can be used for other purpose than writing.
{"title":"Investigation on the Mechanical Properties of Paper Water Hyacinth (Eichhornia Crassipes)","authors":"B. D. Wembe, Rolland Djomi, N. Konai, G. Ntamack, F. A. Tsopmo, O. Olubusoye, L. Meva’a","doi":"10.24018/ejeng.2023.8.1.2965","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.1.2965","url":null,"abstract":"The widely use of papers and for the promotion of conservation of the forest ecosystem in making papers from the falling of trees. This work is focused on the realization of paper and its mechanical properties. Water hyacinth (Eichornia crassipes) is aquatic plant with a high growth rate that usually cover the river surface and has an impact to the environment and other living things. The work done was to produce a paper from water hyacinth through cutting, grinding, refining, molding, the bleaching process and drying process we obtained different papers. In the realization process of the papers, we have used Hydrogen peroxides for the bleaching process to obtain white paper (Bleached paper). In our case we have both the bleached and the unbleached paper. Papers were successfully produced under experimental condition. Mechanical properties of each paper were investigated. The various density of paper water hyacinth plant of the bleached and unbleached was 21.68 g/m3 and 26.37 g/m3 respectively, average tensile rupture stress 1.337MPa & 0.405MPa and young modulus was found to be 36.278MPa and 17.604MPa, the elongation at break 4.744% and 2.879%, average moisture content of 4.82% to 9.59% and 3.57% to 6.62% respectively for the Unbleached and Bleached paper water hyacinth plant. For this reason, Unbleached Paper with certain different strength ranges could be considered to be applied as packaging, seedling pot, mulching or insulating material in advance application. The use of water hyacinth as biomass with the used of the roots and leaf shows a bulky structure. The study concludes that water hyacinth is a potential fiber for paper production especially in areas where it is abundant, but the tensile strength of unbleached paper is more than the bleached paper. So that the paper can be used for other purpose than writing.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78803313","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}
Pub Date : 2023-01-23DOI: 10.24018/ejeng.2023.8.1.2932
Hasan Imam, A. Hossain, H. Sayem, Emdadul M. Haque, M. Khatun, S. J. Jafrin, Purba Anindita Khan, Tonmoy Dutta, Hasan Mahmud, R. Bakali
As the geotechnical investigation is a challenging task due to natural heterogeneity and the limited data so the cheap surface geoelectric resistivity method is widely applied to know the complex subsurface information. To produce the electrical images for a site located at Balukhali Rohingya Refugee Camps area in Ukhiya-Teknaf, Cox’s Bazar, Bangladesh, a field data acquisition technique along with RES2DINV software has been performed. Two Wenner soundings on the 25 m and 50 m image lines at every 1 m and 2 m electrode spacing respectively reveal the shallow subsurface lithological variations. On the other hand, 34 samples were collected from two boreholes at different depths and tested under field and laboratory conditions to measure some basic geotechnical properties such as moisture content, grain size distribution, liquid limit, plastic limit, plasticity index, and specific gravity. These geotechnical parameters were compared with the constructed electrical images and confirmed the significance of the electrical resistivity values. Therefore, the geoelectrical resistivity method can be applied as an additional tool to support and enhance conventional geotechnical interpretation purposes as well as shallow landslide site characterization in Bangladesh.
{"title":"Shallow Landslide Site Characterization using Electrical Resistivity Technique (ERT) at Balukhali Rohingya Refugee Camps of Ukhiya, Cox's Bazar, Bangladesh","authors":"Hasan Imam, A. Hossain, H. Sayem, Emdadul M. Haque, M. Khatun, S. J. Jafrin, Purba Anindita Khan, Tonmoy Dutta, Hasan Mahmud, R. Bakali","doi":"10.24018/ejeng.2023.8.1.2932","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.1.2932","url":null,"abstract":"As the geotechnical investigation is a challenging task due to natural heterogeneity and the limited data so the cheap surface geoelectric resistivity method is widely applied to know the complex subsurface information. To produce the electrical images for a site located at Balukhali Rohingya Refugee Camps area in Ukhiya-Teknaf, Cox’s Bazar, Bangladesh, a field data acquisition technique along with RES2DINV software has been performed. Two Wenner soundings on the 25 m and 50 m image lines at every 1 m and 2 m electrode spacing respectively reveal the shallow subsurface lithological variations. On the other hand, 34 samples were collected from two boreholes at different depths and tested under field and laboratory conditions to measure some basic geotechnical properties such as moisture content, grain size distribution, liquid limit, plastic limit, plasticity index, and specific gravity. These geotechnical parameters were compared with the constructed electrical images and confirmed the significance of the electrical resistivity values. Therefore, the geoelectrical resistivity method can be applied as an additional tool to support and enhance conventional geotechnical interpretation purposes as well as shallow landslide site characterization in Bangladesh.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"65 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76270827","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}
Pub Date : 2023-01-19DOI: 10.24018/ejeng.2023.8.1.2945
Blerina Beqaj
The coastal area of Albania is characterized by specific constructions, parts of which are the coastal wetlands and its lagooning. Lagoons are very specific bodies of water that acquire an interesting status along with the indisputable values they have. The value of knowing the physico-chemical properties of the water of the Narta Lagoon is related to many processes that occur within the lagoon and in the environments around it. The study was carried out on the Narta Lagoon to identify the chemical and physical characteristics of the water. For the determination of the physico-chemical properties, a certain methodology has been followed, which includes the establishment of a network of five stations for sampling the water of the lagoon and the determination of the level of certain physico-chemical parameters. The physico-chemical parameters that were determined are: temperature (T), pH, dissolved oxygen (O2), BOD5, S%, Cl-, ECw, NH4+, NO2-, P-PO43-, hardness. The most pronounced differences of the physico-chemical levels are those that belong to the data of the south-east station. According to the level of different components for all the stations, a degree of homogeneity in the physico-chemical composition is observed. Only the physico-chemical feature of the water at south-eastern part of the lagoon makes a difference, which is related to the influence of the urban discharge channel of the city of Vlora. The physico-chemical parameters that interpret pollution such as: dissolved oxygen (O2), BOD5, NH4+, NO2-, NO3-, PO43-, hardness is higher than in other stations of the lagoon.
{"title":"Evaluation of Water Quality Parameters for Narta Lagoon","authors":"Blerina Beqaj","doi":"10.24018/ejeng.2023.8.1.2945","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.1.2945","url":null,"abstract":"The coastal area of Albania is characterized by specific constructions, parts of which are the coastal wetlands and its lagooning. Lagoons are very specific bodies of water that acquire an interesting status along with the indisputable values they have. The value of knowing the physico-chemical properties of the water of the Narta Lagoon is related to many processes that occur within the lagoon and in the environments around it. The study was carried out on the Narta Lagoon to identify the chemical and physical characteristics of the water. For the determination of the physico-chemical properties, a certain methodology has been followed, which includes the establishment of a network of five stations for sampling the water of the lagoon and the determination of the level of certain physico-chemical parameters. The physico-chemical parameters that were determined are: temperature (T), pH, dissolved oxygen (O2), BOD5, S%, Cl-, ECw, NH4+, NO2-, P-PO43-, hardness. The most pronounced differences of the physico-chemical levels are those that belong to the data of the south-east station. According to the level of different components for all the stations, a degree of homogeneity in the physico-chemical composition is observed. Only the physico-chemical feature of the water at south-eastern part of the lagoon makes a difference, which is related to the influence of the urban discharge channel of the city of Vlora. The physico-chemical parameters that interpret pollution such as: dissolved oxygen (O2), BOD5, NH4+, NO2-, NO3-, PO43-, hardness is higher than in other stations of the lagoon.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82794582","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}
Pub Date : 2023-01-18DOI: 10.24018/ejeng.2023.8.1.2936
F. Hussany
In this research, an experimental design was prepared for a wind farm consisting of a set of Darrieus type wind turbines with a vertical axis, where we conducted a design and economic study for the installation of 25 turbines along the international road (Basra Al-Amarah) in the southeastern region of Iraq and this design will lead to obtaining Electricity of about 35 megawatts, thus saving $165,451.65 per year if a renewable energy source is used. Also, by calculating the savings as a result of not releasing CO2 gas, $357,142,284 is saved per year. This type of turbine can be applied to a large number of roads around the world because of its positive effects to get rid of the energy resource crisis in regions with suitable wind potential.
{"title":"Darrieus' Turbine Design on the International Road Basra-Al-Amarah","authors":"F. Hussany","doi":"10.24018/ejeng.2023.8.1.2936","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.1.2936","url":null,"abstract":"In this research, an experimental design was prepared for a wind farm consisting of a set of Darrieus type wind turbines with a vertical axis, where we conducted a design and economic study for the installation of 25 turbines along the international road (Basra Al-Amarah) in the southeastern region of Iraq and this design will lead to obtaining Electricity of about 35 megawatts, thus saving $165,451.65 per year if a renewable energy source is used. Also, by calculating the savings as a result of not releasing CO2 gas, $357,142,284 is saved per year. This type of turbine can be applied to a large number of roads around the world because of its positive effects to get rid of the energy resource crisis in regions with suitable wind potential.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84076953","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}
Water is life when it’s safe. Water demand means the quantity produced by treatment plants in order to meet all water needs in the community. While water supply is the process of accumulation, transmission, treatment, and distribution. In this study, first-hand information was derived through the process of distributing questionnaires and verbal interviews. The secondary data was obtained from related books, journals, published and unpublished texts, documents magazines, conference articles, government ministries, and agencies. The ministry concerned is of Water Resources. The generated data was analyzed using descriptive and inferential statistics. Interactive linear regression of the data was also employed on R software. The correlation coefficient, R2 of water demand and supply in the area is 1 (i.e.100%). This means there is a strong positive linear correlation between water demand and water supply in Kaduna North. The p-value was obtained as 2.2 x 10-16 which shows that the regression model is statistically significant and negates the null hypothesis. Also, it can be derived from the study Kabala has the largest population with the highest water demand and supply while Ungwan Rimi has the smallest population with the lowest water demand and supply. It is discovered in the study that water demand is more than the water supply in Kaduna North. So, more effort should be put to a water supply to meet the people's demand.
{"title":"Statistical Analysis of Domestic Water Demand and Supply for Kaduna North, Kaduna State","authors":"Saminu Ahmed, Temitope Hafusat, Abdullahi Sarki Zayyan, Aliyu Dadangarba","doi":"10.24018/ejeng.2023.8.1.2922","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.1.2922","url":null,"abstract":"Water is life when it’s safe. Water demand means the quantity produced by treatment plants in order to meet all water needs in the community. While water supply is the process of accumulation, transmission, treatment, and distribution. In this study, first-hand information was derived through the process of distributing questionnaires and verbal interviews. The secondary data was obtained from related books, journals, published and unpublished texts, documents magazines, conference articles, government ministries, and agencies. The ministry concerned is of Water Resources. The generated data was analyzed using descriptive and inferential statistics. Interactive linear regression of the data was also employed on R software. The correlation coefficient, R2 of water demand and supply in the area is 1 (i.e.100%). This means there is a strong positive linear correlation between water demand and water supply in Kaduna North. The p-value was obtained as 2.2 x 10-16 which shows that the regression model is statistically significant and negates the null hypothesis. Also, it can be derived from the study Kabala has the largest population with the highest water demand and supply while Ungwan Rimi has the smallest population with the lowest water demand and supply. It is discovered in the study that water demand is more than the water supply in Kaduna North. So, more effort should be put to a water supply to meet the people's demand.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80611570","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}
Pub Date : 2023-01-05DOI: 10.24018/ejeng.2023.8.1.2886
G. Adepoju, Baruwa Abiodun Aderemi, S. Salimon, Oladosu Jamiu Alabi
Electrical power distribution network is the final stage in the delivery of electric power to consumers. It suffers from high power losses along its radial lines, and there is a need to minimize these losses. One of the technologies used in reducing losses is the application of Distributed Generation (DG). However, inappropriate sizing or placement of DG could inadvertently increase losses in the network. Therefore, this study carries out Optimal Placement and Sizing of DG (OPSDG) in the distribution system using Particle Swarm Optimization (PSO) in reducing the total power loss of the distribution network. A mathematical model of distribution system without and with DG was developed from one voltage source representation to generate a set of equations using Bus Injection to Branch Current (BIBC) and Branch Current to Bus Voltage (BCBV) load flow technique. The model was optimized using PSO and implemented with MATLAB. In each case, the Loss Reduction Index (LRI) was computed. The approach was used on a Nigeria Distribution network 11 kV 34-bus Ayepe feeder of the Ibadan Electricity Distribution Company (IBEDC). The total LRI obtained using analytical technique for sizing and placement of DG is 0.1808 p.u. With the incorporation of DG using PSO, the total LRI is 0.2636 p.u. The best location and size of the DG unit in the network after optimization is at bus 14 with an active power of 5.00 MW. The results established that using PSO for DG placement and sizing significantly reduced the distribution network total power loss.
{"title":"Optimal Placement and Sizing of Distributed Generation for Power Loss Minimization in Distribution Network using Particle Swarm Optimization Technique","authors":"G. Adepoju, Baruwa Abiodun Aderemi, S. Salimon, Oladosu Jamiu Alabi","doi":"10.24018/ejeng.2023.8.1.2886","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.1.2886","url":null,"abstract":"Electrical power distribution network is the final stage in the delivery of electric power to consumers. It suffers from high power losses along its radial lines, and there is a need to minimize these losses. One of the technologies used in reducing losses is the application of Distributed Generation (DG). However, inappropriate sizing or placement of DG could inadvertently increase losses in the network. Therefore, this study carries out Optimal Placement and Sizing of DG (OPSDG) in the distribution system using Particle Swarm Optimization (PSO) in reducing the total power loss of the distribution network. A mathematical model of distribution system without and with DG was developed from one voltage source representation to generate a set of equations using Bus Injection to Branch Current (BIBC) and Branch Current to Bus Voltage (BCBV) load flow technique. The model was optimized using PSO and implemented with MATLAB. In each case, the Loss Reduction Index (LRI) was computed. The approach was used on a Nigeria Distribution network 11 kV 34-bus Ayepe feeder of the Ibadan Electricity Distribution Company (IBEDC). The total LRI obtained using analytical technique for sizing and placement of DG is 0.1808 p.u. With the incorporation of DG using PSO, the total LRI is 0.2636 p.u. The best location and size of the DG unit in the network after optimization is at bus 14 with an active power of 5.00 MW. The results established that using PSO for DG placement and sizing significantly reduced the distribution network total power loss.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88345163","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}
Pub Date : 2023-01-04DOI: 10.24018/ejeng.2023.8.1.2946
N. Didar, M. Abbaspour
Indoor evacuation and rescue systems are necessary for responding to unexpected events. In the event of fire incidents, finding a proper evacuation route planning for impacted people as an immediate response and a real-time rescue planning for the trapped people is challenging. Several approaches are developed to provide an evacuation or rescue system by integrating building data and BIM models. However, none of them took the issues of both evacuation and rescue into account, and the provided solutions are not properly aware of dynamic environmental change variables derived from remotely sensed data. In this research, an evacuation and rescue management system is designed based on the integration of dynamic data of fire progress, people status, and routing data. This system consists of two stages: dynamic evacuation and dynamic rescue with priority assessment. First, the environmental data is gathered and integrated with the static building data. Then, leveraging a risk assessment method, the level of rout safety is evaluated and a dynamic risk-aware rout planning is generated for each person to evacuate safely and fast. Finally, in the rescue stage, rescuers are assigned to the trapped people using a priority assessment method so that the success rate of rescue operation increases. The same rout risk assessment is used to develop route planning for rescue team to ensure their safety. A system framework and architecture is proposed as a reference for emergency response systems and the system is evaluated over two state of art baselines under several scenarios in AnyLogic. The results demonstrates that dynamic evacuation and rescue with priority assessment approach helps to save more people, reduce total time, lower the risk of human injury and efficiently assigns relief resources to the trapped users.
{"title":"Integrated Evacuation and Rescue Management System in Response to Fire Incidents","authors":"N. Didar, M. Abbaspour","doi":"10.24018/ejeng.2023.8.1.2946","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.1.2946","url":null,"abstract":"Indoor evacuation and rescue systems are necessary for responding to unexpected events. In the event of fire incidents, finding a proper evacuation route planning for impacted people as an immediate response and a real-time rescue planning for the trapped people is challenging. Several approaches are developed to provide an evacuation or rescue system by integrating building data and BIM models. However, none of them took the issues of both evacuation and rescue into account, and the provided solutions are not properly aware of dynamic environmental change variables derived from remotely sensed data. In this research, an evacuation and rescue management system is designed based on the integration of dynamic data of fire progress, people status, and routing data. This system consists of two stages: dynamic evacuation and dynamic rescue with priority assessment. First, the environmental data is gathered and integrated with the static building data. Then, leveraging a risk assessment method, the level of rout safety is evaluated and a dynamic risk-aware rout planning is generated for each person to evacuate safely and fast. Finally, in the rescue stage, rescuers are assigned to the trapped people using a priority assessment method so that the success rate of rescue operation increases. The same rout risk assessment is used to develop route planning for rescue team to ensure their safety. A system framework and architecture is proposed as a reference for emergency response systems and the system is evaluated over two state of art baselines under several scenarios in AnyLogic. The results demonstrates that dynamic evacuation and rescue with priority assessment approach helps to save more people, reduce total time, lower the risk of human injury and efficiently assigns relief resources to the trapped users.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85988173","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}
Pub Date : 2023-01-04DOI: 10.24018/ejeng.2023.8.1.2942
Brenda Paola Baltazar-García, Daniel Francisco Baltazar-Zamora, Laura Landa-Ruiz, Ce Tochtli Méndez, G. Santiago-Hurtado, Victor M. Moreno-Landeros, R. Croche, M. Baltazar-Zamora
The electrochemical behavior of the corrosion resistance of AISI 304 embedded in concrete manufactured as indicated by the ACI 211.1 method was evaluated. The specimens were exposed for more than 150 days to highly aggressive marine-sulfated environment, solution with a concentration of 5% NaCl and 5% Na2SO4. The electrochemical technique of Resistance to Linear Polarization (Rp) was used for to determine the corrosion rate (Icorr) and monitoring of corrosion potential (Ecorr). The Ecorr and Icorr results indicate a high level of corrosion for AISI 1018 steel, on the contrary, the electrochemical behaviour of AISI 304 steel according to the values of Ecorr and Icorr, indicate a corrosion resistance of up to 10 times higher when exposed to an environment with a high concentration of chlorides and sulfates.
{"title":"Electrochemical Corrosion in Bars of AISI 304 Embedded in Concrete Immersed in Marine-Sulfated Environment","authors":"Brenda Paola Baltazar-García, Daniel Francisco Baltazar-Zamora, Laura Landa-Ruiz, Ce Tochtli Méndez, G. Santiago-Hurtado, Victor M. Moreno-Landeros, R. Croche, M. Baltazar-Zamora","doi":"10.24018/ejeng.2023.8.1.2942","DOIUrl":"https://doi.org/10.24018/ejeng.2023.8.1.2942","url":null,"abstract":"The electrochemical behavior of the corrosion resistance of AISI 304 embedded in concrete manufactured as indicated by the ACI 211.1 method was evaluated. The specimens were exposed for more than 150 days to highly aggressive marine-sulfated environment, solution with a concentration of 5% NaCl and 5% Na2SO4. The electrochemical technique of Resistance to Linear Polarization (Rp) was used for to determine the corrosion rate (Icorr) and monitoring of corrosion potential (Ecorr). The Ecorr and Icorr results indicate a high level of corrosion for AISI 1018 steel, on the contrary, the electrochemical behaviour of AISI 304 steel according to the values of Ecorr and Icorr, indicate a corrosion resistance of up to 10 times higher when exposed to an environment with a high concentration of chlorides and sulfates.","PeriodicalId":12001,"journal":{"name":"European Journal of Engineering and Technology Research","volume":"73 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86374901","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}
Pub Date : 2022-12-30DOI: 10.24018/ejeng.2022.7.6.2943
H. Otoo, Sampson Takyi-Appiah, Abraham Nsiah
Infectious diseases like measles, tuberculosis, cholera, diarrhea, COVID-19, and staphylococcal infection continue to receive a lot of attention daily due to their high rate of transmission and deadly nature. Thus, in this study, the analytical solution of the transmission dynamics of diarrhea was studied using the Homotopy perturbation approach. The human population was divided into five major compartments namely: susceptible, infective, exposed, recovered and vaccinated. The Homotopy Perturbation Method was then applied to the system of nonlinear differential equations formulated in relation to the various compartments. To derive the analytical solution to the transmission dynamics of diarrhea the nonlinear differential equations formulated were then embedded into the homotopy perturbation constructor and solved for the solution in the form of a power series. The study, therefore, recommends that simulations can be performed on the analytical solution in order to compare the dynamics using other mathematical techniques.
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