Pub Date : 2020-06-01DOI: 10.1109/redec49234.2020.9163605
Marcelo Benítez, Cesar Isasi, R. Galeano, D. Gregor, M. Arzamendia, R. Gregor, J. Rodas, Y. Kali
This work focuses on the development of a bidirectional electrical energy measurement system under a distributed generation (DG) scheme. The measurement system consists of an IC ADE9000 for the measurement of high-precision multi-phase electrical energy, circuits and sensors for voltage and current conditioning, an Arduino Due as a control unit and an Ethernet module ENC28j60 for IP connection. The measurement system includes a data management scheme based on a web platform contained in a server where measurement queries can be performed as well as user administration through a database.
{"title":"Design of a Bidirectional Electrical Energy Measurement System for Applications in Distributed Generation","authors":"Marcelo Benítez, Cesar Isasi, R. Galeano, D. Gregor, M. Arzamendia, R. Gregor, J. Rodas, Y. Kali","doi":"10.1109/redec49234.2020.9163605","DOIUrl":"https://doi.org/10.1109/redec49234.2020.9163605","url":null,"abstract":"This work focuses on the development of a bidirectional electrical energy measurement system under a distributed generation (DG) scheme. The measurement system consists of an IC ADE9000 for the measurement of high-precision multi-phase electrical energy, circuits and sensors for voltage and current conditioning, an Arduino Due as a control unit and an Ethernet module ENC28j60 for IP connection. The measurement system includes a data management scheme based on a web platform contained in a server where measurement queries can be performed as well as user administration through a database.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131065000","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 : 2020-06-01DOI: 10.1109/REDEC49234.2020.9163881
Adama Sarr, C. F. Kébé, A. Ghennioui
This work constitutes an approach for the estimation of global solar radiation on 4 climatic zones of Senegal. These are the sites at Dakar, Saint Louis, Tambacounda and Ziguinchor. For this study, data from the Helioclim-3 database of the Meteosat-2 satellite are used as model inputs. For the validation process estimated data and meteorological observations were incorporated into the hourly values. The Clear Sky models of Bird & Hulstrom, Lacis & Hansen and Davies & Hay are simulated. They are based on the determination of the transmission coefficients of the various atmospheric constituents. These coefficients require the availability of current meteorological parameters (relative humidity, ambient temperature, atmospheric pressure) and geographical parameters of the site (latitude, longitude and altitude) and also of the solar position. A comparative study of the results obtained by simulation of the three models showed that the Bird & Hulstrom model gives a better estimate of the global component of solar irradiation. The errors between the values of the meteorological observations and those calculated are small for all 4 sites. The mean square errors are small between 10% and 20% and mean relative errors between 0.1% and 12%. The Bird & Hulstrom model was therefore finally chosen for the establishment of global hourly solar radiation over all four zones. The algorithm structure was built using R software.
{"title":"Comparative approach for global solar estimation in four typical Senegalese climatic zones","authors":"Adama Sarr, C. F. Kébé, A. Ghennioui","doi":"10.1109/REDEC49234.2020.9163881","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163881","url":null,"abstract":"This work constitutes an approach for the estimation of global solar radiation on 4 climatic zones of Senegal. These are the sites at Dakar, Saint Louis, Tambacounda and Ziguinchor. For this study, data from the Helioclim-3 database of the Meteosat-2 satellite are used as model inputs. For the validation process estimated data and meteorological observations were incorporated into the hourly values. The Clear Sky models of Bird & Hulstrom, Lacis & Hansen and Davies & Hay are simulated. They are based on the determination of the transmission coefficients of the various atmospheric constituents. These coefficients require the availability of current meteorological parameters (relative humidity, ambient temperature, atmospheric pressure) and geographical parameters of the site (latitude, longitude and altitude) and also of the solar position. A comparative study of the results obtained by simulation of the three models showed that the Bird & Hulstrom model gives a better estimate of the global component of solar irradiation. The errors between the values of the meteorological observations and those calculated are small for all 4 sites. The mean square errors are small between 10% and 20% and mean relative errors between 0.1% and 12%. The Bird & Hulstrom model was therefore finally chosen for the establishment of global hourly solar radiation over all four zones. The algorithm structure was built using R software.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126997234","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 : 2020-06-01DOI: 10.1109/REDEC49234.2020.9163839
K. Sandy, Maatouk Chantal, Khatounian Flavia, Khoury Khalil
This paper reviews different structures for thermal energy storage system by the mean of solar energy for domestic water heating. The various configurations described in literature are characterized by having a single entry to the phase change material (PCM) reservoir for one or multiple types of PCMs. These configurations are presented and compared to the proposed ones aimed at the enhancement of the global system performance in order to predict the best system one. Simulation results show that the storage efficiency can be improved by using a reservoir with multiple entries since it improves the storage efficiency in different seasons. It also shows that the use of independent PCM stocks is even more effective than the connected ones and contributes to a higher storage efficiency. Therefore, the multiple entries reservoir is shown as a promising technique to override the intermittency drawback of solar energy encountered in the solar system compared to the single-entry tank.
{"title":"Performance enhancement of phase change material based heat storage systems using multiple entries reservoir","authors":"K. Sandy, Maatouk Chantal, Khatounian Flavia, Khoury Khalil","doi":"10.1109/REDEC49234.2020.9163839","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163839","url":null,"abstract":"This paper reviews different structures for thermal energy storage system by the mean of solar energy for domestic water heating. The various configurations described in literature are characterized by having a single entry to the phase change material (PCM) reservoir for one or multiple types of PCMs. These configurations are presented and compared to the proposed ones aimed at the enhancement of the global system performance in order to predict the best system one. Simulation results show that the storage efficiency can be improved by using a reservoir with multiple entries since it improves the storage efficiency in different seasons. It also shows that the use of independent PCM stocks is even more effective than the connected ones and contributes to a higher storage efficiency. Therefore, the multiple entries reservoir is shown as a promising technique to override the intermittency drawback of solar energy encountered in the solar system compared to the single-entry tank.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126508330","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 : 2020-06-01DOI: 10.1109/REDEC49234.2020.9163902
Boua Sidoine Kadjo, D. Sangaré, K. Sako, L. Coulibaly
The objective of this work is the management of organic solid waste, rich in organic matter, by anaerobic digestion. The device set up is a batch reactor for the production of biogas. The organic waste used comes mainly from households, consisting of 80.4% organic matter. The anaerobic digestion of this waste gave in 70 days 9 liters of biogas composed of 57.35% methane and 32.4% carbon dioxide. Upgrading of biogas would allow to produce 1235.27 kWh of primary energy per ton of solid household waste treated and to avoid an emission of 6.34 ${mathrm {tCO_{2}e_{q}}}$. It would make it possible to avoid 77.54% of the emissions compared to landfilling.
{"title":"Biogas production from household solid waste by anaerobic batch reactor","authors":"Boua Sidoine Kadjo, D. Sangaré, K. Sako, L. Coulibaly","doi":"10.1109/REDEC49234.2020.9163902","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163902","url":null,"abstract":"The objective of this work is the management of organic solid waste, rich in organic matter, by anaerobic digestion. The device set up is a batch reactor for the production of biogas. The organic waste used comes mainly from households, consisting of 80.4% organic matter. The anaerobic digestion of this waste gave in 70 days 9 liters of biogas composed of 57.35% methane and 32.4% carbon dioxide. Upgrading of biogas would allow to produce 1235.27 kWh of primary energy per ton of solid household waste treated and to avoid an emission of 6.34 ${mathrm {tCO_{2}e_{q}}}$. It would make it possible to avoid 77.54% of the emissions compared to landfilling.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130401769","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 : 2020-06-01DOI: 10.1109/REDEC49234.2020.9163877
Mohamed Lifi, E. Montero, L. Deshayes, Natalia Muñoz-Rujas, Y. Chhiti, F. Alaoui, F. Romero
New measurements of excess enthalpy of binary mixtures containing 1-hexene, Cyclohexane and 2,2,4-Trimethylpentane at 313.15 K are reported in this work, by using a quasi-isothermal calorimeter at atmospheric pressure. The measured data of $H^{mathrm{E}}$ has been fitted using NRTL and UNIQUAC models, and Redlich-Kister mathematical equation. All the studied binary mixtures show an endothermic behavior.
{"title":"Measurement and modeling of excess enthalpies of hydrocarbon mixtures: Alkene + Alkane or + Cycloalkane at 313.15 K","authors":"Mohamed Lifi, E. Montero, L. Deshayes, Natalia Muñoz-Rujas, Y. Chhiti, F. Alaoui, F. Romero","doi":"10.1109/REDEC49234.2020.9163877","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163877","url":null,"abstract":"New measurements of excess enthalpy of binary mixtures containing 1-hexene, Cyclohexane and 2,2,4-Trimethylpentane at 313.15 K are reported in this work, by using a quasi-isothermal calorimeter at atmospheric pressure. The measured data of $H^{mathrm{E}}$ has been fitted using NRTL and UNIQUAC models, and Redlich-Kister mathematical equation. All the studied binary mixtures show an endothermic behavior.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131937867","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}
As a part of the development of research related to the production of renewable energies, this article presents a contribution to the study and control of the doubly-fed induction generator (DFIG) applied to a wind turbine. Its purpose is to exploit the predictive control that consists of optimizing, from the inputs/outputs of a system, the predicted future behavior of the system so as to follow its reference. In our case, we control the active and reactive powers of the machine. To do that, we will propose a model of the system. Then, a brief description of the predictive control is spread out. In the end, the control mentioned before is tested using the software Matlab/Simulink, to illustrate the efficiency of the system proposed.
{"title":"DEADBEAT Control Applied toWind Power System","authors":"Bouderbala Manale, Bossoufi Badre, Alami Aroussi Hala, Taoussi Mohammed, Lagrioui Ahmed, Livinti Petru","doi":"10.1109/REDEC49234.2020.9163601","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163601","url":null,"abstract":"As a part of the development of research related to the production of renewable energies, this article presents a contribution to the study and control of the doubly-fed induction generator (DFIG) applied to a wind turbine. Its purpose is to exploit the predictive control that consists of optimizing, from the inputs/outputs of a system, the predicted future behavior of the system so as to follow its reference. In our case, we control the active and reactive powers of the machine. To do that, we will propose a model of the system. Then, a brief description of the predictive control is spread out. In the end, the control mentioned before is tested using the software Matlab/Simulink, to illustrate the efficiency of the system proposed.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125072653","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 : 2020-06-01DOI: 10.1109/REDEC49234.2020.9163899
Anna-Maria Abi-Khattar, H. Rajha, R. Maroun, R. Abdel-Massih, N. Louka, Espérance Debs
Maximization of polyphenols recovery from olive leaves by conventional water bath extraction was investigated using infrared irradiation as a pretreatment. A multivariate study enabled us to define the best experimental parameters for polyphenol extraction: 1:20 (w/v) for the solid to liquid ratio; $60 ^{circ}mathrm {C}$ and 75% ethanol/water. Untreated and infrared pretreated leaves were then subjected to the conventional extraction of polyphenols using the abovementioned conditions. A significant increase in both polyphenol yields and antiradical activities were shown subsequently to the infrared pretreatment of the leaves. This study concluded that IR pretreatment intensified the polyphenols extraction by varying different operative parameters such as temperature and IR exposure time.
{"title":"Green Extraction of Polyphenols from Olive Leaves using Ired-Irrad® as a Pretreatment","authors":"Anna-Maria Abi-Khattar, H. Rajha, R. Maroun, R. Abdel-Massih, N. Louka, Espérance Debs","doi":"10.1109/REDEC49234.2020.9163899","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163899","url":null,"abstract":"Maximization of polyphenols recovery from olive leaves by conventional water bath extraction was investigated using infrared irradiation as a pretreatment. A multivariate study enabled us to define the best experimental parameters for polyphenol extraction: 1:20 (w/v) for the solid to liquid ratio; $60 ^{circ}mathrm {C}$ and 75% ethanol/water. Untreated and infrared pretreated leaves were then subjected to the conventional extraction of polyphenols using the abovementioned conditions. A significant increase in both polyphenol yields and antiradical activities were shown subsequently to the infrared pretreatment of the leaves. This study concluded that IR pretreatment intensified the polyphenols extraction by varying different operative parameters such as temperature and IR exposure time.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121934113","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 : 2020-06-01DOI: 10.1109/REDEC49234.2020.9163892
G. U. Nnachi, Cornelius Thapelo Mosetlhe, Y. Hamam
Wind Energy Conversion Systems (WECS) are faced with escalating demand for power quality and total harmonic distortion (THD) control. With the advances in power electronics technology, the rapid growth of variable speed WECS is now witnessed. However, the power quality still remains an important issue to be addressed thoroughly by researchers. This project presents a comparative study on grid connected WECS (DFIG and PMSG) in terms of output powers (P&Q), Voltages and currents, THD and dynamic responses following a fault (duration=90ms) on the machine side bus (B575). Both systems are connected to power grid through unconventional back to back converters. The DFIG is modeled using the direct-quadrature rotating reference frame circuit along with the aligned stator flux, and the field-oriented control approach is applied for independent control of the active and reactive power and the DC-link voltage at the grid side. Improvement of the controllers of the DFIG from the rotor side and the stator (grid) side converters are done to enhance the dynamic performance. The comparison also aims to present in a thorough and coherent way the aspects of power quality in terms of reduction in Total Harmonic Distortion (THD) during the fault period. All the simulations are made in Matlab/Simulink.
{"title":"A comparative power quality study of DFIG and PMSG renewable energy conversion systems","authors":"G. U. Nnachi, Cornelius Thapelo Mosetlhe, Y. Hamam","doi":"10.1109/REDEC49234.2020.9163892","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163892","url":null,"abstract":"Wind Energy Conversion Systems (WECS) are faced with escalating demand for power quality and total harmonic distortion (THD) control. With the advances in power electronics technology, the rapid growth of variable speed WECS is now witnessed. However, the power quality still remains an important issue to be addressed thoroughly by researchers. This project presents a comparative study on grid connected WECS (DFIG and PMSG) in terms of output powers (P&Q), Voltages and currents, THD and dynamic responses following a fault (duration=90ms) on the machine side bus (B575). Both systems are connected to power grid through unconventional back to back converters. The DFIG is modeled using the direct-quadrature rotating reference frame circuit along with the aligned stator flux, and the field-oriented control approach is applied for independent control of the active and reactive power and the DC-link voltage at the grid side. Improvement of the controllers of the DFIG from the rotor side and the stator (grid) side converters are done to enhance the dynamic performance. The comparison also aims to present in a thorough and coherent way the aspects of power quality in terms of reduction in Total Harmonic Distortion (THD) during the fault period. All the simulations are made in Matlab/Simulink.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121984562","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 : 2020-06-01DOI: 10.1109/REDEC49234.2020.9163841
Caouthar Bahanni, Mustapha Adar, S. Boulmrharj, M. Khaidar, M. Mabrouki
The aim of this work is to compare yield photovoltaic and installations performance of different technologies exposed under natural outdoor conditions in two different sites in Morocco (Beni Mellal and EL Jadida). The plants studied consist of three technologies monocrystalline silicon (mc-si), amorphous silicon (ac-Si) and polycrystalline silicon (pc-si). The experimental data has been recorded over one-year period. The comparative analysis included annual energy production and performance ratio. From these studies, it can be observed that PV installations with pc-Si have the highest energy yields. Regarding the performance ratios, in Beni Mellal the higher values observed only for the pc-Si technology, although in EL Jadida, the mc-Si and pc-Si technologies present almost the same performance ratio.
{"title":"Analysis of weather impact on the yield of PV plants installed in two antagonists cities in Morocco","authors":"Caouthar Bahanni, Mustapha Adar, S. Boulmrharj, M. Khaidar, M. Mabrouki","doi":"10.1109/REDEC49234.2020.9163841","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163841","url":null,"abstract":"The aim of this work is to compare yield photovoltaic and installations performance of different technologies exposed under natural outdoor conditions in two different sites in Morocco (Beni Mellal and EL Jadida). The plants studied consist of three technologies monocrystalline silicon (mc-si), amorphous silicon (ac-Si) and polycrystalline silicon (pc-si). The experimental data has been recorded over one-year period. The comparative analysis included annual energy production and performance ratio. From these studies, it can be observed that PV installations with pc-Si have the highest energy yields. Regarding the performance ratios, in Beni Mellal the higher values observed only for the pc-Si technology, although in EL Jadida, the mc-Si and pc-Si technologies present almost the same performance ratio.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115530253","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 : 2020-06-01DOI: 10.1109/REDEC49234.2020.9163830
Muhammad Shoaib Ahmed Khan, R. Benelmir, A. Donnot
Energy production from fossil fuels is a conventional method which has negative impacts on environment and puts a heavy burden on economy of a country. The developed countries are focusing more on renewable energy sources and reducing their dependency on fossil fuels. Among other renewable sources of energy, biomass is a reasonable source of energy because it also solves the problem of disposal of waste products. Fast pyrolysis is a high temperature thermochemical conversion process widely used for production of bio oil from biomass. Pyrolysis model of olive mill waste water sludge is developed in Aspen Plus based upon the experimental results. Pyrolysis of olive mill waste water takes place at 450°C in a fluidized bed reactor. The products are passed through cyclone at 350^°C for removal of biochar. Bio oil vapors and non-condensable gases are passed through a series of condensers. A heat exchanger carrying water is employed after cyclone to condense the bio oil vapors at 90°C. Cooling water is heated upto 67°C in the heat exchanger which is a suitable temperature to drive an adsorption machine. This adsorption machine is used to condense water vapors at 10°C. The exergy analysis of the process shows that a net heat transfer of 30 W takes place in the first condenser. Overall exergy efficiency of pyrolysis olive mill waste water sludge is about 83% taking into account all products. High efficiency suggests that pyrolysis is a very efficient process for production of bio-oils.
{"title":"Thermodynamic analysis of pyrolysis of olive mill waste water sludge in fluidized bed reactor","authors":"Muhammad Shoaib Ahmed Khan, R. Benelmir, A. Donnot","doi":"10.1109/REDEC49234.2020.9163830","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163830","url":null,"abstract":"Energy production from fossil fuels is a conventional method which has negative impacts on environment and puts a heavy burden on economy of a country. The developed countries are focusing more on renewable energy sources and reducing their dependency on fossil fuels. Among other renewable sources of energy, biomass is a reasonable source of energy because it also solves the problem of disposal of waste products. Fast pyrolysis is a high temperature thermochemical conversion process widely used for production of bio oil from biomass. Pyrolysis model of olive mill waste water sludge is developed in Aspen Plus based upon the experimental results. Pyrolysis of olive mill waste water takes place at 450°C in a fluidized bed reactor. The products are passed through cyclone at 350^°C for removal of biochar. Bio oil vapors and non-condensable gases are passed through a series of condensers. A heat exchanger carrying water is employed after cyclone to condense the bio oil vapors at 90°C. Cooling water is heated upto 67°C in the heat exchanger which is a suitable temperature to drive an adsorption machine. This adsorption machine is used to condense water vapors at 10°C. The exergy analysis of the process shows that a net heat transfer of 30 W takes place in the first condenser. Overall exergy efficiency of pyrolysis olive mill waste water sludge is about 83% taking into account all products. High efficiency suggests that pyrolysis is a very efficient process for production of bio-oils.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"426 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116541663","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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