Pub Date : 2019-07-01DOI: 10.1109/ICCSRE.2019.8807760
A. Kassimi, Hamid Motor, Abdellatif EL MAR JAM
As PEMFC technology becomes progressively mature for large-scale commercialization, research and innovation in the mechanical field becomes important. To meet the different requirements in terms of durability and reliability, the mechanical strains must be taken into account when designing the multi-cells PEMFC. A three-dimensional finite element model of a PEMFC has been developed to analyze the behavior of the deformations and corresponding stresses of fuel cell component. The effect of clamping force on the cell performances has been investigated. We show, through the obtained results, the importance of the clamping force on the intrusion of the GDL and the stress generated in the cell components: when the clamping pressure was increased from 0.2 MPa to 0.8 MPa, the GDL intrusion increase from 0.01 mm to 0,038 mm. The results also showed that the strain is important at the ends and decreases when moving towards the middle of the multi-cell PEMFC fuel cell. Finally, the increase in the number of channels affects the distribution of the stresses and the value of the intrusion noticed on the external channel and that of the central channel becomes more important. Consequently, a good management of the clamping force is indispensable to avoid obstruction of fuels and to keep a sufficient seal between the channels.
{"title":"Numerical investigation of stresses distribution in a multi-channel PEMFC fuel cell under clamping pressure","authors":"A. Kassimi, Hamid Motor, Abdellatif EL MAR JAM","doi":"10.1109/ICCSRE.2019.8807760","DOIUrl":"https://doi.org/10.1109/ICCSRE.2019.8807760","url":null,"abstract":"As PEMFC technology becomes progressively mature for large-scale commercialization, research and innovation in the mechanical field becomes important. To meet the different requirements in terms of durability and reliability, the mechanical strains must be taken into account when designing the multi-cells PEMFC. A three-dimensional finite element model of a PEMFC has been developed to analyze the behavior of the deformations and corresponding stresses of fuel cell component. The effect of clamping force on the cell performances has been investigated. We show, through the obtained results, the importance of the clamping force on the intrusion of the GDL and the stress generated in the cell components: when the clamping pressure was increased from 0.2 MPa to 0.8 MPa, the GDL intrusion increase from 0.01 mm to 0,038 mm. The results also showed that the strain is important at the ends and decreases when moving towards the middle of the multi-cell PEMFC fuel cell. Finally, the increase in the number of channels affects the distribution of the stresses and the value of the intrusion noticed on the external channel and that of the central channel becomes more important. Consequently, a good management of the clamping force is indispensable to avoid obstruction of fuels and to keep a sufficient seal between the channels.","PeriodicalId":360150,"journal":{"name":"2019 International Conference of Computer Science and Renewable Energies (ICCSRE)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126800008","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 : 2019-07-01DOI: 10.1109/ICCSRE.2019.8807696
Zakaria Hamidi-Alaoui, Noureddine Moussa, Abdelbaki El Belrhiti El Alaoui
In many of modern Mobile Wireless Sensor Networks (M-WSN) applications, the use of mobile nodes is considered an important feature for achieving the emergent tasks. Unfortunately, mobility of nodes presents several challenges in the protocol design stage, especially when using highly mobile nodes. Therefore, the design of more efficient mobility handling techniques and algorithms is of great interest to meet the quality-of-service requirements. Indeed, the first step in mobility handling is to allow nodes to be aware of their movements. In this context, because of the lack of efficiency in existing mobility detection solutions, we propose in this paper an improved mechanism, namely ADMob, allowing mobile nodes to detect their mobility autonomously. In fact, by taking advantage of the two well-known metrics, RSSI and LQI, provided by the IEEE802.15.4 compatible wireless radio transceivers, three main contributions are provided in this paper: a low-cost and accurate mobility estimation mechanism based on tracking the distance change between every two peer communicating nodes, an algorithm for optimally detecting the truly mobile nodes in the network. Finally, an adaptive algorithm for dynamically adjusting the parameters of the proposed mechanism according to targeted environments. The proposal is executed at the link layer, then, by using internal trigger messages, the up-layer communication protocols, including MAC, routing and IP protocols, can benefit from the estimated mobility information. Compared with its counterparts, the experiment results revealed that the proposed mechanism has better performance in terms of accuracy, latency, flexibility and adaptability to target environments and especially with no additional energy-hardware costs.
{"title":"ADMob : An Improved Mechanism for Autonomous Detection of Mobility in Wireless Sensor Networks","authors":"Zakaria Hamidi-Alaoui, Noureddine Moussa, Abdelbaki El Belrhiti El Alaoui","doi":"10.1109/ICCSRE.2019.8807696","DOIUrl":"https://doi.org/10.1109/ICCSRE.2019.8807696","url":null,"abstract":"In many of modern Mobile Wireless Sensor Networks (M-WSN) applications, the use of mobile nodes is considered an important feature for achieving the emergent tasks. Unfortunately, mobility of nodes presents several challenges in the protocol design stage, especially when using highly mobile nodes. Therefore, the design of more efficient mobility handling techniques and algorithms is of great interest to meet the quality-of-service requirements. Indeed, the first step in mobility handling is to allow nodes to be aware of their movements. In this context, because of the lack of efficiency in existing mobility detection solutions, we propose in this paper an improved mechanism, namely ADMob, allowing mobile nodes to detect their mobility autonomously. In fact, by taking advantage of the two well-known metrics, RSSI and LQI, provided by the IEEE802.15.4 compatible wireless radio transceivers, three main contributions are provided in this paper: a low-cost and accurate mobility estimation mechanism based on tracking the distance change between every two peer communicating nodes, an algorithm for optimally detecting the truly mobile nodes in the network. Finally, an adaptive algorithm for dynamically adjusting the parameters of the proposed mechanism according to targeted environments. The proposal is executed at the link layer, then, by using internal trigger messages, the up-layer communication protocols, including MAC, routing and IP protocols, can benefit from the estimated mobility information. Compared with its counterparts, the experiment results revealed that the proposed mechanism has better performance in terms of accuracy, latency, flexibility and adaptability to target environments and especially with no additional energy-hardware costs.","PeriodicalId":360150,"journal":{"name":"2019 International Conference of Computer Science and Renewable Energies (ICCSRE)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129546968","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 : 2019-07-01DOI: 10.1109/ICCSRE.2019.8807572
A. Sabraoui, Anas Abouzahra, K. Afdel, M. Machkour
Mobile application development is a fastestgrowing domain in the software industry in recent years. The rapid development of hardware and software platforms for smartphones has resulted in a large number of mobile platforms (e.g. Apple iOS, Android OS, Windows phone, and BlackBerry OS). This diversity of platforms constitutes a challenge for application developers, who must write the same application separately for each operating system. MDD (Model Driven Development) approach based on DSL (Domain Specific Language), could provide a possible solution to solve this problem. In this proposal, we present a model-driven development method to develop native mobile applications. This approach proposes a new DSL to define GUI (Graphical User Interface) independently of the target mobile platforms and allows developers to automatically generate native code to these several platforms. Currently, our method has been implemented to support Android OS. The usefulness of the proposed approach is demonstrated through a concrete case study.
{"title":"MDD Approach for Mobile Applications Based On DSL","authors":"A. Sabraoui, Anas Abouzahra, K. Afdel, M. Machkour","doi":"10.1109/ICCSRE.2019.8807572","DOIUrl":"https://doi.org/10.1109/ICCSRE.2019.8807572","url":null,"abstract":"Mobile application development is a fastestgrowing domain in the software industry in recent years. The rapid development of hardware and software platforms for smartphones has resulted in a large number of mobile platforms (e.g. Apple iOS, Android OS, Windows phone, and BlackBerry OS). This diversity of platforms constitutes a challenge for application developers, who must write the same application separately for each operating system. MDD (Model Driven Development) approach based on DSL (Domain Specific Language), could provide a possible solution to solve this problem. In this proposal, we present a model-driven development method to develop native mobile applications. This approach proposes a new DSL to define GUI (Graphical User Interface) independently of the target mobile platforms and allows developers to automatically generate native code to these several platforms. Currently, our method has been implemented to support Android OS. The usefulness of the proposed approach is demonstrated through a concrete case study.","PeriodicalId":360150,"journal":{"name":"2019 International Conference of Computer Science and Renewable Energies (ICCSRE)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125882957","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 : 2019-07-01DOI: 10.1109/ICCSRE.2019.8807463
Sara Zerdani, Mohammed El hafyani, Hicham Fadil, Ismail Zouggar
the active fault tolerant control was presented for to compensate automatically the possible failures occurring in a dynamic system and it became very attractive as it can be used in inverter open-switch fault for three-phase permanent magnet synchronous Drives. However, few studies have been focused on active fault tolerant control; the major works have been suggested in order to control the inverter at normal condition or at faulty mode separately. This paper integrated self-repairing control in three phase permanent magnet synchronous motor drive system with one faulty leg based on two controllers PI and Fuzzy PI. Three tasks have been guaranteed in this work, the first consists to detect the faulty switch and isolate it, in the second task a hardware reconfiguration take place in order to feed the faulty phase, and then an additive control law is activated to compensate the fault.
{"title":"Active fault tolerant control for Permanent Magnet Synchronous Motor drives","authors":"Sara Zerdani, Mohammed El hafyani, Hicham Fadil, Ismail Zouggar","doi":"10.1109/ICCSRE.2019.8807463","DOIUrl":"https://doi.org/10.1109/ICCSRE.2019.8807463","url":null,"abstract":"the active fault tolerant control was presented for to compensate automatically the possible failures occurring in a dynamic system and it became very attractive as it can be used in inverter open-switch fault for three-phase permanent magnet synchronous Drives. However, few studies have been focused on active fault tolerant control; the major works have been suggested in order to control the inverter at normal condition or at faulty mode separately. This paper integrated self-repairing control in three phase permanent magnet synchronous motor drive system with one faulty leg based on two controllers PI and Fuzzy PI. Three tasks have been guaranteed in this work, the first consists to detect the faulty switch and isolate it, in the second task a hardware reconfiguration take place in order to feed the faulty phase, and then an additive control law is activated to compensate the fault.","PeriodicalId":360150,"journal":{"name":"2019 International Conference of Computer Science and Renewable Energies (ICCSRE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126445703","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 : 2019-07-01DOI: 10.1109/ICCSRE.2019.8807782
Y. Amadane, H. Mounir, A. Marjani, Ettouhami Mohamed Karim
Recently; the performance of proton exchange membrane fuel cell (PEMFC) is gaining increasing attention. This fuel cell is affected by a large number of parameters such as temperature, pressure and relative humidity. A developed model using a Finite Element Method was used to analyze the collected results. Taguchi method was used to find out the effective parameters that give the maximum power density of proton exchange membrane fuel cell (PEMFC). The water distribution is analyzed and the results show that the water presents a key role in the hydration of the membrane and then the fuel cell performances. The optimum power density was 0.503W/cm2, it was obtained with 320 K temperature, 3Pa operating pressure and 0.8/0.2 mass fractions hydrogen/water.
{"title":"Optimization of Operating Parameters Affecting the Performance of Proton Exchange Membrane Fuel Cell (PEMFC) by Using Taguchi Method","authors":"Y. Amadane, H. Mounir, A. Marjani, Ettouhami Mohamed Karim","doi":"10.1109/ICCSRE.2019.8807782","DOIUrl":"https://doi.org/10.1109/ICCSRE.2019.8807782","url":null,"abstract":"Recently; the performance of proton exchange membrane fuel cell (PEMFC) is gaining increasing attention. This fuel cell is affected by a large number of parameters such as temperature, pressure and relative humidity. A developed model using a Finite Element Method was used to analyze the collected results. Taguchi method was used to find out the effective parameters that give the maximum power density of proton exchange membrane fuel cell (PEMFC). The water distribution is analyzed and the results show that the water presents a key role in the hydration of the membrane and then the fuel cell performances. The optimum power density was 0.503W/cm2, it was obtained with 320 K temperature, 3Pa operating pressure and 0.8/0.2 mass fractions hydrogen/water.","PeriodicalId":360150,"journal":{"name":"2019 International Conference of Computer Science and Renewable Energies (ICCSRE)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123761888","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 : 2019-07-01DOI: 10.1109/ICCSRE.2019.8807457
Ilham Nassar-eddine, A. Obbadi, Karima Et-torabi, Hamza Mokhliss, A. Elamiri, R. Rmaily, Y. Errami, A. E. Fajri, S. Sahnoun, Mustapha Agunaou
The control strategy’ efficiency of single stage grid-connected PV system is important. This study suggest a novel Fuzzy logic controller to control and regulate the DC-bus voltage at its reference value under changing irradiance levels. Moreover, a fuzzy logic algorithm is employed to extract the maximum power from the photovoltaic array and to provide the reference value of DC-bus voltage. Thus, a comparative analysis between the proposed and proportional integral controllers is made to prove the effectiveness of the developed controller. Furthermore, to validate the superiority of the proposed Fuzzy Logic controller, simulations were carried out at Matlab/Simulink environment. Finally, the simulation results prove that the proposed controller gives better performance in response time, rate of overshoot and tracking efficiency regarding the proportional integral controller. In addition, a comparison in term of Total Harmonic Distortion of current is asses, it demonstrate that the control strategy with the developed Fuzzy Logic gives less value compared to that with the PI controller.
{"title":"A new Fuzzy Logic architecture to control the DC-bus voltage in grid connected photovoltaic system","authors":"Ilham Nassar-eddine, A. Obbadi, Karima Et-torabi, Hamza Mokhliss, A. Elamiri, R. Rmaily, Y. Errami, A. E. Fajri, S. Sahnoun, Mustapha Agunaou","doi":"10.1109/ICCSRE.2019.8807457","DOIUrl":"https://doi.org/10.1109/ICCSRE.2019.8807457","url":null,"abstract":"The control strategy’ efficiency of single stage grid-connected PV system is important. This study suggest a novel Fuzzy logic controller to control and regulate the DC-bus voltage at its reference value under changing irradiance levels. Moreover, a fuzzy logic algorithm is employed to extract the maximum power from the photovoltaic array and to provide the reference value of DC-bus voltage. Thus, a comparative analysis between the proposed and proportional integral controllers is made to prove the effectiveness of the developed controller. Furthermore, to validate the superiority of the proposed Fuzzy Logic controller, simulations were carried out at Matlab/Simulink environment. Finally, the simulation results prove that the proposed controller gives better performance in response time, rate of overshoot and tracking efficiency regarding the proportional integral controller. In addition, a comparison in term of Total Harmonic Distortion of current is asses, it demonstrate that the control strategy with the developed Fuzzy Logic gives less value compared to that with the PI controller.","PeriodicalId":360150,"journal":{"name":"2019 International Conference of Computer Science and Renewable Energies (ICCSRE)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132410688","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 : 2019-07-01DOI: 10.1109/ICCSRE.2019.8807543
Mouna Ben zohra, Amine Riad, A. Alhamany
The solar heater is system can transform solar rays into thermal energy. Recently, several thermal systems appear to collect this energy. However, solar energy is discontinuous; consequently, the storage of thermal energy is expected. There are several techniques for energy storage among these methods are the phase change materials. The use of these materials for heat storage allows the design of new systems that can optimize energy production and storage. In this way, numerical model describing melting phase change materials, considering the effects is carried out using the ANSYS-Fluent calculation code.
{"title":"Development of thermal energy storage system based on phase change materials","authors":"Mouna Ben zohra, Amine Riad, A. Alhamany","doi":"10.1109/ICCSRE.2019.8807543","DOIUrl":"https://doi.org/10.1109/ICCSRE.2019.8807543","url":null,"abstract":"The solar heater is system can transform solar rays into thermal energy. Recently, several thermal systems appear to collect this energy. However, solar energy is discontinuous; consequently, the storage of thermal energy is expected. There are several techniques for energy storage among these methods are the phase change materials. The use of these materials for heat storage allows the design of new systems that can optimize energy production and storage. In this way, numerical model describing melting phase change materials, considering the effects is carried out using the ANSYS-Fluent calculation code.","PeriodicalId":360150,"journal":{"name":"2019 International Conference of Computer Science and Renewable Energies (ICCSRE)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127279447","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 : 2019-07-01DOI: 10.1109/ICCSRE.2019.8807676
C. Chioncel, C. Murarescu, E. Spunei, M. Dudu
The present paper determines the optimum energy operation area of an electric wind power system, under time varying wind speed conditions. The determinations of the optimal area, from the energy point of view, is done based on experimental values from the Romanian black sea cost, Dobrogea area. The optimum operation area is defined by the optimal mechanical velocity, ωOPTIM. For this, the dependence between the wind speed, v, and ωOPTIM are computed based on the current wind speed and the current mechanical velocity ω. Due to the high inertia of the wind turbine (WT), the generators speed is not able to follow the changes of the wind speed. Knowing the optimum value ωOPTIM, the solution is to determine the load at the permanent magnet synchronous generator (PMSG) in order that the mechanical speed should timely reach his optimum.
{"title":"Energy efficiency at wind power systems operating at time varying wind speed","authors":"C. Chioncel, C. Murarescu, E. Spunei, M. Dudu","doi":"10.1109/ICCSRE.2019.8807676","DOIUrl":"https://doi.org/10.1109/ICCSRE.2019.8807676","url":null,"abstract":"The present paper determines the optimum energy operation area of an electric wind power system, under time varying wind speed conditions. The determinations of the optimal area, from the energy point of view, is done based on experimental values from the Romanian black sea cost, Dobrogea area. The optimum operation area is defined by the optimal mechanical velocity, ωOPTIM. For this, the dependence between the wind speed, v, and ωOPTIM are computed based on the current wind speed and the current mechanical velocity ω. Due to the high inertia of the wind turbine (WT), the generators speed is not able to follow the changes of the wind speed. Knowing the optimum value ωOPTIM, the solution is to determine the load at the permanent magnet synchronous generator (PMSG) in order that the mechanical speed should timely reach his optimum.","PeriodicalId":360150,"journal":{"name":"2019 International Conference of Computer Science and Renewable Energies (ICCSRE)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129542658","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}
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