Pub Date : 2017-04-01DOI: 10.1109/ICMSAO.2017.7934902
A. Inayat, C. Ghenai, M. Ayoub, E. Eisa
Due to abundance of oil palm waste worldwide, it is a good candidate to be used as a feedstock for synthetic natural gas for vehicles (SNGV) production. Biomass gasification is one of the promising methods for SNGV production. This work focuses on the gasification with in-situ CO2 capture using CaO as absorbent materials for SNGV production from palm oil empty fruit bunch (EFB). Two parameters (temperature 500–900°C and steam/biomass ratio 1–2.2) have been studied on the production of SNGV via simulation approach in ASPEN HYSYS. The model has been also validated with literature and showed good agreement. The results showed that the EFB has good potential to produce higher yield of SNGV at lower temperature. The higher value of SNGV (4 kg/hr) is obtained due to the lower concentration of CO2 caused by using CaO as sorbent material.
{"title":"Simulation for the production of synthetic natural gas for vehicles (SNGV) from palm waste via gasification with in-situ CO2 capture","authors":"A. Inayat, C. Ghenai, M. Ayoub, E. Eisa","doi":"10.1109/ICMSAO.2017.7934902","DOIUrl":"https://doi.org/10.1109/ICMSAO.2017.7934902","url":null,"abstract":"Due to abundance of oil palm waste worldwide, it is a good candidate to be used as a feedstock for synthetic natural gas for vehicles (SNGV) production. Biomass gasification is one of the promising methods for SNGV production. This work focuses on the gasification with in-situ CO2 capture using CaO as absorbent materials for SNGV production from palm oil empty fruit bunch (EFB). Two parameters (temperature 500–900°C and steam/biomass ratio 1–2.2) have been studied on the production of SNGV via simulation approach in ASPEN HYSYS. The model has been also validated with literature and showed good agreement. The results showed that the EFB has good potential to produce higher yield of SNGV at lower temperature. The higher value of SNGV (4 kg/hr) is obtained due to the lower concentration of CO2 caused by using CaO as sorbent material.","PeriodicalId":265345,"journal":{"name":"2017 7th International Conference on Modeling, Simulation, and Applied Optimization (ICMSAO)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130706893","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 : 2017-04-01DOI: 10.1109/ICMSAO.2017.7934865
M. Al-Shabi
In this work, well known Sigma Point Kalman Filters (SPKFs); namely Unscented Kalman filter (UKF), the Cubature Kalman filter (CKF), and the Central Differences Kalman filter (CDKF) will be combined to the Smooth Variable Structure Filter (SVSF), in order to create stable and robust algorithms that can be applied to highly non-linear systems. The proposed algorithms will be applied into 4-DOF robotic arm that consists of one prismatic joint and three revolute joints (PRRR). By doing so, the stability of the proposed filters will be guaranteed. Which makes the comparison between the SPKFs easier. These methods will be executed using simulation experiments, and then they will be compared in terms of stability, robustness and the quality of the optimality.
{"title":"Sigma-point Smooth Variable Structure Filters applications into robotic arm","authors":"M. Al-Shabi","doi":"10.1109/ICMSAO.2017.7934865","DOIUrl":"https://doi.org/10.1109/ICMSAO.2017.7934865","url":null,"abstract":"In this work, well known Sigma Point Kalman Filters (SPKFs); namely Unscented Kalman filter (UKF), the Cubature Kalman filter (CKF), and the Central Differences Kalman filter (CDKF) will be combined to the Smooth Variable Structure Filter (SVSF), in order to create stable and robust algorithms that can be applied to highly non-linear systems. The proposed algorithms will be applied into 4-DOF robotic arm that consists of one prismatic joint and three revolute joints (PRRR). By doing so, the stability of the proposed filters will be guaranteed. Which makes the comparison between the SPKFs easier. These methods will be executed using simulation experiments, and then they will be compared in terms of stability, robustness and the quality of the optimality.","PeriodicalId":265345,"journal":{"name":"2017 7th International Conference on Modeling, Simulation, and Applied Optimization (ICMSAO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116303314","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 : 2017-04-01DOI: 10.1109/ICMSAO.2017.7934852
I. Alsyouf, Sadeque Hamdan
Maintenance is playing a crucial role in keeping and improving availability, performance efficiency, quality products, on-time deliveries, and environment and safety requirements at high levels. Usually decision maker has to consider conflicting criteria such as cost, reliability, safety, risk, and availability when selecting among various maintenance policies. The purpose of this paper is to develop a multi-objective optimization model that will be used to compare the performance of maintenance policies (age, block good as new, block bad as old) based on four performance criteria which are cost, availability, life-time and reliability by using weighted comprehensive criterion method to convert all the objectives into a single objective. The model is illustrated with a typical numerical example. The model presented in this paper works as a tool for decision maker to select the most effective maintenance policy under different scenarios.
{"title":"A multi-objective optimization of maintenance policies using weighted comprehensive criterion method (WCCM)","authors":"I. Alsyouf, Sadeque Hamdan","doi":"10.1109/ICMSAO.2017.7934852","DOIUrl":"https://doi.org/10.1109/ICMSAO.2017.7934852","url":null,"abstract":"Maintenance is playing a crucial role in keeping and improving availability, performance efficiency, quality products, on-time deliveries, and environment and safety requirements at high levels. Usually decision maker has to consider conflicting criteria such as cost, reliability, safety, risk, and availability when selecting among various maintenance policies. The purpose of this paper is to develop a multi-objective optimization model that will be used to compare the performance of maintenance policies (age, block good as new, block bad as old) based on four performance criteria which are cost, availability, life-time and reliability by using weighted comprehensive criterion method to convert all the objectives into a single objective. The model is illustrated with a typical numerical example. The model presented in this paper works as a tool for decision maker to select the most effective maintenance policy under different scenarios.","PeriodicalId":265345,"journal":{"name":"2017 7th International Conference on Modeling, Simulation, and Applied Optimization (ICMSAO)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130100493","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 : 2017-04-01DOI: 10.1109/ICMSAO.2017.7934928
O. Bagdasar, D. Andrica
The interplay between integer sequences and partitions has led to numerous interesting results, with implications in generating functions, integral formulae, or combinatorics. An illustrative example is the number of solutions at level n to the signum equation. Denoted by S(n), this represents the number of ways of choosing + and − such that ±1±2±3±···±n = 0 (see A063865 in OEIS). The Andrica-Tomescu conjecture regarding the asymptotic behaviour of S(n) was solved affirmatively in 2013, and new conjectures were formulated since then. In this paper we present recurrence formulae, generating functions and integral formulae for the number of ordered 2-partitions of the multiset M having equal sums. Certain related integer sequences not currently indexed in the OEIS are then presented. Finally, we formulate conjectures regarding the unimodality, distribution and asymptotic behaviour of these sequences.
{"title":"New results and conjectures on 2-partitions of multisets","authors":"O. Bagdasar, D. Andrica","doi":"10.1109/ICMSAO.2017.7934928","DOIUrl":"https://doi.org/10.1109/ICMSAO.2017.7934928","url":null,"abstract":"The interplay between integer sequences and partitions has led to numerous interesting results, with implications in generating functions, integral formulae, or combinatorics. An illustrative example is the number of solutions at level n to the signum equation. Denoted by S(n), this represents the number of ways of choosing + and − such that ±1±2±3±···±n = 0 (see A063865 in OEIS). The Andrica-Tomescu conjecture regarding the asymptotic behaviour of S(n) was solved affirmatively in 2013, and new conjectures were formulated since then. In this paper we present recurrence formulae, generating functions and integral formulae for the number of ordered 2-partitions of the multiset M having equal sums. Certain related integer sequences not currently indexed in the OEIS are then presented. Finally, we formulate conjectures regarding the unimodality, distribution and asymptotic behaviour of these sequences.","PeriodicalId":265345,"journal":{"name":"2017 7th International Conference on Modeling, Simulation, and Applied Optimization (ICMSAO)","volume":"1840 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129819117","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 : 2017-04-01DOI: 10.1109/ICMSAO.2017.7934912
A. Sagher, F. Abed
A parametric study to investigate the shear behavior of short concrete beams reinforced with glass fiber reinforced polymer (GFRP) bars is presented in this paper. The parametric analysis is conducted numerically by developing a three-dimensional finite element model considering both geometric and material nonlinearities. The FE model is verified against existing experimental results [1] then extended to consider a wider range of parameters. The effect of longitudinal reinforcement ratio, the span-to-depth ratio and the beam's height on the shear strength of GFRP-RC beams are examined. The results showed that increasing the longitudinal reinforcement ratio increases the shear strength of short beams. However, the mid-span deflection is accordingly increases due to the lower axial rigidity of GFRP bars. Also, the increase in the beams' height led to an increase in the shear capacity of the beams.
{"title":"Finite element parametric study of the shear behavior of GFRP-RC short beams","authors":"A. Sagher, F. Abed","doi":"10.1109/ICMSAO.2017.7934912","DOIUrl":"https://doi.org/10.1109/ICMSAO.2017.7934912","url":null,"abstract":"A parametric study to investigate the shear behavior of short concrete beams reinforced with glass fiber reinforced polymer (GFRP) bars is presented in this paper. The parametric analysis is conducted numerically by developing a three-dimensional finite element model considering both geometric and material nonlinearities. The FE model is verified against existing experimental results [1] then extended to consider a wider range of parameters. The effect of longitudinal reinforcement ratio, the span-to-depth ratio and the beam's height on the shear strength of GFRP-RC beams are examined. The results showed that increasing the longitudinal reinforcement ratio increases the shear strength of short beams. However, the mid-span deflection is accordingly increases due to the lower axial rigidity of GFRP bars. Also, the increase in the beams' height led to an increase in the shear capacity of the beams.","PeriodicalId":265345,"journal":{"name":"2017 7th International Conference on Modeling, Simulation, and Applied Optimization (ICMSAO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130639104","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 : 2017-04-01DOI: 10.1109/ICMSAO.2017.7934890
Reem Salim, H. Noura, A. Fardoun
Model based fault diagnosis of fuel cells requires the development of a highly accurate system model. However, Fuel cell systems are considered to be very complex systems that are very difficult to model. Moreover, confidentiality issues with the manufacturer can sometimes impose constraints on the development of the model. This paper presents an approach to develop an accurate proton exchange membrane (PEMFC) system model for the use in fault diagnosis studies despite the lack of crucial system information by utilizing the Siemens LMS AMESim software.
{"title":"Fault diagnosis of a commercial PEM Fuel cell system using LMS AMESim","authors":"Reem Salim, H. Noura, A. Fardoun","doi":"10.1109/ICMSAO.2017.7934890","DOIUrl":"https://doi.org/10.1109/ICMSAO.2017.7934890","url":null,"abstract":"Model based fault diagnosis of fuel cells requires the development of a highly accurate system model. However, Fuel cell systems are considered to be very complex systems that are very difficult to model. Moreover, confidentiality issues with the manufacturer can sometimes impose constraints on the development of the model. This paper presents an approach to develop an accurate proton exchange membrane (PEMFC) system model for the use in fault diagnosis studies despite the lack of crucial system information by utilizing the Siemens LMS AMESim software.","PeriodicalId":265345,"journal":{"name":"2017 7th International Conference on Modeling, Simulation, and Applied Optimization (ICMSAO)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123844231","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 : 2017-04-01DOI: 10.1109/ICMSAO.2017.7934849
H. Alfifi
This paper explores how the semi-analytical solutions have been applied on delayed diffusive food-limited models. The Galerkin technique has been used to determine partial differential equations through ordinary differential equations. Steady-state solutions, limit cycles and Hopf bifurcation points are considered. In addition, comparisons between semi-analytical and numerical results show good agreement for steady-state solutions and for the parameter values at which the Hopf bifurcations occur. Example of a stable and unstable limit cycle and Hopf bifurcation points are shown to confirm the results in the Hopf bifurcations map. The benefits and accuracy of the semi-analytical results are confirmed by comparison with the numerical solutions of partial differential equations.
{"title":"Semi-analytical solutions for the delayed diffusive food-limited model","authors":"H. Alfifi","doi":"10.1109/ICMSAO.2017.7934849","DOIUrl":"https://doi.org/10.1109/ICMSAO.2017.7934849","url":null,"abstract":"This paper explores how the semi-analytical solutions have been applied on delayed diffusive food-limited models. The Galerkin technique has been used to determine partial differential equations through ordinary differential equations. Steady-state solutions, limit cycles and Hopf bifurcation points are considered. In addition, comparisons between semi-analytical and numerical results show good agreement for steady-state solutions and for the parameter values at which the Hopf bifurcations occur. Example of a stable and unstable limit cycle and Hopf bifurcation points are shown to confirm the results in the Hopf bifurcations map. The benefits and accuracy of the semi-analytical results are confirmed by comparison with the numerical solutions of partial differential equations.","PeriodicalId":265345,"journal":{"name":"2017 7th International Conference on Modeling, Simulation, and Applied Optimization (ICMSAO)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121564517","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 : 2017-04-01DOI: 10.1109/ICMSAO.2017.7934924
Khaled Salem
It is shown that the hypergraph generated by a hexagonal system is conformal if and only if the hexagonal system is catacondensed. Also, it is shown that the chromatic index of the hypergraph generated by a catacondensed hexagonal system is five. Finally, a formula for the covering number of the hypergraph generated by a catacondensed hexagonal system is given.
{"title":"The hypergraphs generated by catacondensed hexagonal systems","authors":"Khaled Salem","doi":"10.1109/ICMSAO.2017.7934924","DOIUrl":"https://doi.org/10.1109/ICMSAO.2017.7934924","url":null,"abstract":"It is shown that the hypergraph generated by a hexagonal system is conformal if and only if the hexagonal system is catacondensed. Also, it is shown that the chromatic index of the hypergraph generated by a catacondensed hexagonal system is five. Finally, a formula for the covering number of the hypergraph generated by a catacondensed hexagonal system is given.","PeriodicalId":265345,"journal":{"name":"2017 7th International Conference on Modeling, Simulation, and Applied Optimization (ICMSAO)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127079756","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 : 2017-04-01DOI: 10.1109/ICMSAO.2017.7934913
Sadeque Hamdan, Ali Cheaitou
Pricing strategies are critical to attract buyers and motivate them to purchase more. Quantity discounts are pricing incentives used by suppliers and benefit the buyers in the sense that the more the purchased quantity the lower the unit price. This paper uses an incremental quantity discount scheme in a green supplier selection and order allocation context and proposes a multi-period single-product bi-objective optimization model. The developed model attempts to maximize the green value and minimize the total cost of the purchased items from the buyer perspective. The model is converted into a single objective one by adopting a weighted comprehensive criterion method and solved using the branch-and-cut algorithm. The results show the effect of the use of incremental quantity discounts on the optimal ordered quantities.
{"title":"Green supplier selection and order allocation with incremental quantity discounts","authors":"Sadeque Hamdan, Ali Cheaitou","doi":"10.1109/ICMSAO.2017.7934913","DOIUrl":"https://doi.org/10.1109/ICMSAO.2017.7934913","url":null,"abstract":"Pricing strategies are critical to attract buyers and motivate them to purchase more. Quantity discounts are pricing incentives used by suppliers and benefit the buyers in the sense that the more the purchased quantity the lower the unit price. This paper uses an incremental quantity discount scheme in a green supplier selection and order allocation context and proposes a multi-period single-product bi-objective optimization model. The developed model attempts to maximize the green value and minimize the total cost of the purchased items from the buyer perspective. The model is converted into a single objective one by adopting a weighted comprehensive criterion method and solved using the branch-and-cut algorithm. The results show the effect of the use of incremental quantity discounts on the optimal ordered quantities.","PeriodicalId":265345,"journal":{"name":"2017 7th International Conference on Modeling, Simulation, and Applied Optimization (ICMSAO)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127443670","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 : 2017-04-01DOI: 10.1109/ICMSAO.2017.7934911
A. A. Abdelgadir, J. Alsawalhi
This paper describes an energy management strategy for a light-weight electric vehicle equipped with a hybrid energy storage system. A population based optimization algorithm was used to solve a single objective constrained optimization problem, where the energy consumed by the battery was to be minimized for a given drive cycle in order to extend the range of the vehicle. Obtained results show the effectiveness of the proposed energy management strategy at minimizing the energy consumed while maintaining the imposed constraints.
{"title":"Energy management optimization for an extended range electric vehicle","authors":"A. A. Abdelgadir, J. Alsawalhi","doi":"10.1109/ICMSAO.2017.7934911","DOIUrl":"https://doi.org/10.1109/ICMSAO.2017.7934911","url":null,"abstract":"This paper describes an energy management strategy for a light-weight electric vehicle equipped with a hybrid energy storage system. A population based optimization algorithm was used to solve a single objective constrained optimization problem, where the energy consumed by the battery was to be minimized for a given drive cycle in order to extend the range of the vehicle. Obtained results show the effectiveness of the proposed energy management strategy at minimizing the energy consumed while maintaining the imposed constraints.","PeriodicalId":265345,"journal":{"name":"2017 7th International Conference on Modeling, Simulation, and Applied Optimization (ICMSAO)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125229541","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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