Résultat de la recherche
5 résultat(s) recherche sur le tag 'rayonnement solaire' 
Affiner la recherche Générer le flux rss de la recherche
Partager le résultat de cette recherche Interroger des sources externes
Titre : Amelioration des performances d’un collecteur solaire Type de document : texte imprimé Auteurs : Cherifa Boutghan, Auteur ; Abla Chaker, Directeur de thèse Editeur : Constantine : Université Mentouri Constantine Année de publication : 2012 Importance : 101 f. Format : 31 cm. Note générale : Magister
2 copies imprimées disponiblesLangues : Français (fre) Catégories : Français - Anglais
PhysiqueTags : Capteur solaire collecteur cylindro-parabolique rayonnement solaire modélisation mathématique Index. décimale : 530 Physique Diplôme : Magistère En ligne : ../theses/physique/BOU6273.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=6234 Amelioration des performances d’un collecteur solaire [texte imprimé] / Cherifa Boutghan, Auteur ; Abla Chaker, Directeur de thèse . - Constantine : Université Mentouri Constantine, 2012 . - 101 f. ; 31 cm.
Magister
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
PhysiqueTags : Capteur solaire collecteur cylindro-parabolique rayonnement solaire modélisation mathématique Index. décimale : 530 Physique Diplôme : Magistère En ligne : ../theses/physique/BOU6273.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=6234 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/6273 BOU/6273 Thèse Bibliothèque principale Thèses Disponible
Titre : Etude du champ solaire d’une centrale thermique hybride de production d’electricite. Type de document : texte imprimé Auteurs : Adel Miles, Auteur ; O. Khemis, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2017 Importance : 145 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Génie MécaniqueTags : solaire thermodynamique, concentration, Cylindro-parabolique Centrale Optimisation Performance Rayonnement solaire Simulation solar thermodynamics, concentration, Parabolic trough Power station Optimization Solar radiation ?????? ??????? ???????? ?????? ???? ???? ?? ????? ??????? ???????? ??????
???????Index. décimale : 620 Génie Mécanique Résumé : The work presented in this thesis is a contribution to the study of the production of
electricity by a hybrid thermal power plant exploiting the solar field on the one hand and
natural gas on the other hand.
This work concerns firstly the evaluation of the thermodynamic performances of a solargas hybrid thermal power system with a power of 150 MW, the method of energy analysis
was used in this thesis. This method is used to determine the main parameters in order to
achieve improvements in system performance. The development of the analysis model in this
thesis is carried out by determining the thermal and solar efficiency as well as the efficiency
of solar electricity. Due to the calculation of the thermal and solar performances in typical
days and an average of the days of the year, we used simulation software "Aspen Plus" to
determine the thermodynamic parameters of the hybrid plant in the case of Algerian weather
conditions. As well as the System Advisor Model (SAM), this gives a methodology and
information particularly on cylindro-parabolic shapes concerning the part of the solar field in
the system studied. The results are calculated hour by hour from sunrise to sunset. The second
part of this work is being improved in the overall efficiency of the plant with two levels of
pressure that directly affects the capacity of the steam turbine in the power block. In the third
part, an optimization of the power at the level of the steam turbine is also carried out. The
optimization was carried out in the power block which contains two gas turbines and a double
pressure steam cycle where the high pressure part is only heated. Preliminary simulations for
this system have shown that the steam turbine cycle can achieve optimum conditions for
reheating and low vapor pressure, which would enhance the performance of the system. The
fourth part concerns the comparison of the key parameters of the thermal power plant in
different sites based on the economic factor (LCOE), the configuration of the solar field
section and the line spacing or the so-called effect of shading. The exploitation of the "Aspen
plus" and "SAM" software enabled us to establish models of optimal hybrid power plants
(solar-gas) in the arid zone of Algeria. Such a study is a reference for the construction and site
selection of the installation of this type of power plant.Diplôme : Doctorat en sciences En ligne : ../theses/gmecanique/MIL7126.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10476 Etude du champ solaire d’une centrale thermique hybride de production d’electricite. [texte imprimé] / Adel Miles, Auteur ; O. Khemis, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2017 . - 145 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Génie MécaniqueTags : solaire thermodynamique, concentration, Cylindro-parabolique Centrale Optimisation Performance Rayonnement solaire Simulation solar thermodynamics, concentration, Parabolic trough Power station Optimization Solar radiation ?????? ??????? ???????? ?????? ???? ???? ?? ????? ??????? ???????? ??????
???????Index. décimale : 620 Génie Mécanique Résumé : The work presented in this thesis is a contribution to the study of the production of
electricity by a hybrid thermal power plant exploiting the solar field on the one hand and
natural gas on the other hand.
This work concerns firstly the evaluation of the thermodynamic performances of a solargas hybrid thermal power system with a power of 150 MW, the method of energy analysis
was used in this thesis. This method is used to determine the main parameters in order to
achieve improvements in system performance. The development of the analysis model in this
thesis is carried out by determining the thermal and solar efficiency as well as the efficiency
of solar electricity. Due to the calculation of the thermal and solar performances in typical
days and an average of the days of the year, we used simulation software "Aspen Plus" to
determine the thermodynamic parameters of the hybrid plant in the case of Algerian weather
conditions. As well as the System Advisor Model (SAM), this gives a methodology and
information particularly on cylindro-parabolic shapes concerning the part of the solar field in
the system studied. The results are calculated hour by hour from sunrise to sunset. The second
part of this work is being improved in the overall efficiency of the plant with two levels of
pressure that directly affects the capacity of the steam turbine in the power block. In the third
part, an optimization of the power at the level of the steam turbine is also carried out. The
optimization was carried out in the power block which contains two gas turbines and a double
pressure steam cycle where the high pressure part is only heated. Preliminary simulations for
this system have shown that the steam turbine cycle can achieve optimum conditions for
reheating and low vapor pressure, which would enhance the performance of the system. The
fourth part concerns the comparison of the key parameters of the thermal power plant in
different sites based on the economic factor (LCOE), the configuration of the solar field
section and the line spacing or the so-called effect of shading. The exploitation of the "Aspen
plus" and "SAM" software enabled us to establish models of optimal hybrid power plants
(solar-gas) in the arid zone of Algeria. Such a study is a reference for the construction and site
selection of the installation of this type of power plant.Diplôme : Doctorat en sciences En ligne : ../theses/gmecanique/MIL7126.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10476 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité MIL/7126 MIL/7126 Thèse Bibliothèque principale Thèses Disponible
Titre : Etude et réalisation d'un concentrateur solaire parabolique Type de document : texte imprimé Auteurs : Ilhem Zeghib ; Université Mentouri, Editeur scientifique ; T. Kerbache, Directeur de thèse Année de publication : 2005 Importance : 85 f. Note générale : 01 Disponible à la salle de recherche 02 Disponibles au magazin de la biblioithèque centrale 01 CD Langues : Français (fre) Catégories : Français - Anglais
PhysiqueTags : Rayonnement solaire Concentrateur parabolique Récepteur Réflecteur plan focal Index. décimale : 530 Physique En ligne : ../theses/physique/ZEG4339.pdf Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=3613 Etude et réalisation d'un concentrateur solaire parabolique [texte imprimé] / Ilhem Zeghib ; Université Mentouri, Editeur scientifique ; T. Kerbache, Directeur de thèse . - 2005 . - 85 f.
01 Disponible à la salle de recherche 02 Disponibles au magazin de la biblioithèque centrale 01 CD
Langues : Français (fre)
Catégories : Français - Anglais
PhysiqueTags : Rayonnement solaire Concentrateur parabolique Récepteur Réflecteur plan focal Index. décimale : 530 Physique En ligne : ../theses/physique/ZEG4339.pdf Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=3613 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité ZEG/4339 ZEG/4339 Thèse Bibliothèque principale Thèses Disponible Production d’hydrogène par électrolyse sous chauffage solaire par un concentrateur paraboloïdale / Khaled Mahdi
Titre : Production d’hydrogène par électrolyse sous chauffage solaire par un concentrateur paraboloïdale Type de document : texte imprimé Auteurs : Khaled Mahdi, Auteur ; N. Bellel, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2015 Importance : 161 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
PhysiqueTags : rayonnement solaire paraboloïde récepteur cylindrique électrolyseur hydrogène solar radiation paraboloïdal cylindrical receiver electrolyser hydrogen ??????? ?????? ???? ????? ???? ??????? ?????????? Index. décimale : 530 Physique Résumé : In order not to promote degrade the environment; people had sought to replace Natural non-renewable resources such as fossil fuels by developing technologies that are based on renewable resources. An example of such technology is solar energy. In this paper, we show a design and an experimental and numerical analysis with the use of FLUENT
software receiver thermal behavior of a solar parabolic concentrator as a prototype for the production of steam which can be coupled with a turbine to produce electricity or steam engine, this electricity can be stoker with the electrolysis process in the form of hydrogen
Diplôme : Doctorat en sciences En ligne : ../theses/physique/MAH6763.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9850 Production d’hydrogène par électrolyse sous chauffage solaire par un concentrateur paraboloïdale [texte imprimé] / Khaled Mahdi, Auteur ; N. Bellel, Directeur de thèse . - constantine (Route ain el bey, Algérie) : Université Constantine 1, 2015 . - 161 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
PhysiqueTags : rayonnement solaire paraboloïde récepteur cylindrique électrolyseur hydrogène solar radiation paraboloïdal cylindrical receiver electrolyser hydrogen ??????? ?????? ???? ????? ???? ??????? ?????????? Index. décimale : 530 Physique Résumé : In order not to promote degrade the environment; people had sought to replace Natural non-renewable resources such as fossil fuels by developing technologies that are based on renewable resources. An example of such technology is solar energy. In this paper, we show a design and an experimental and numerical analysis with the use of FLUENT
software receiver thermal behavior of a solar parabolic concentrator as a prototype for the production of steam which can be coupled with a turbine to produce electricity or steam engine, this electricity can be stoker with the electrolysis process in the form of hydrogen
Diplôme : Doctorat en sciences En ligne : ../theses/physique/MAH6763.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9850 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité MAH/6763 MAH/6763 Thèse Bibliothèque principale Thèses Disponible
Titre : Simulation et optimisation d’un modèle de capteur cylindro-parabolique Type de document : texte imprimé Auteurs : Taqiy Eddine Boukelia, Auteur ; Mohamed-Salah Mecibah, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2016 Importance : 173 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Génie MécaniqueTags : Cylindro-parabolique Centrale Optimisation Performance Rayonnement solaire Simulation Optimization Parabolic trough Plant Solar radiation ???? ????? ???? ????? ???? ???? ?? ??? ?????? ?????? Index. décimale : 620 Génie Mécanique Résumé : In the first part of thesis, we had started by the estimation of the Algerian solar radiation potential. Because the use of parabolic trough solar collectors implies that these systems only work with the direct normal irradiance (DNI). For this purpose, a proposed methodology for estimating the DNI in the presence or the absence of measured global and diffuse irradiances. When applying the proposed methodology for the calculation of DNI for three Algerian ground stations, we obtained better performances than those of five spatial databases data. Furthermore, an analysis of
optical and thermal performances of a parabolic trough solar collector has been presented. The solar radiation intercepted by the solar collector in different modes of tracking, the incidence angle modifier, the row shadowing and the end loss, in addition to the thermal losses and the conversion efficiency in every moment can be calculated using the developed model in this study.
The third part presents the design of the power block with a steam regenerative 50 MW
Rankine cycle, for solar installations with parabolic trough solar concentrators, and using two different fluids: thermic oil and molten salt. Due to the difference in the main stream parameters of the two power blocks, we can note that the power cycle efficiency at the assumed nominal conditions of the solar salt plant is higher than Therminol VP-1. While the fourth part of our study is based on evaluation and comparison of eight different configurations of these plants (with molten salt and thermic oil, with and without thermal storage system and backup system) in terms
of their design, thermodynamic yield (energetic and exergetic), economic factors and the environmental impacts. The results indicate that the configurations with integrated thermal energy storage and fossil fuel backup system are found to be more techno-economical, but on the other hand, they are less environment friendly.
In the last part, we optimized the two plants using the artificial neural network method. The results show that it is possible to get minimum values of LCOE of 8,3 and 7,0 cent $/kWh for oil and salt configurations, respectively. Moreover, a 4E (energy–exergy–environment–economic) comparison of the optimized plants is studied, in order to choose the best technology to be adapted in the viability study for Algerian locations. According to the feasibility analysis, the semi-arid and arid Algerian sites are suitable for realization of parabolic trough power plants with integrated
thermal energy storage and fuel backup system.Diplôme : Doctorat En ligne : ../theses/gmecanique/BOU6864.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10178 Simulation et optimisation d’un modèle de capteur cylindro-parabolique [texte imprimé] / Taqiy Eddine Boukelia, Auteur ; Mohamed-Salah Mecibah, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2016 . - 173 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Génie MécaniqueTags : Cylindro-parabolique Centrale Optimisation Performance Rayonnement solaire Simulation Optimization Parabolic trough Plant Solar radiation ???? ????? ???? ????? ???? ???? ?? ??? ?????? ?????? Index. décimale : 620 Génie Mécanique Résumé : In the first part of thesis, we had started by the estimation of the Algerian solar radiation potential. Because the use of parabolic trough solar collectors implies that these systems only work with the direct normal irradiance (DNI). For this purpose, a proposed methodology for estimating the DNI in the presence or the absence of measured global and diffuse irradiances. When applying the proposed methodology for the calculation of DNI for three Algerian ground stations, we obtained better performances than those of five spatial databases data. Furthermore, an analysis of
optical and thermal performances of a parabolic trough solar collector has been presented. The solar radiation intercepted by the solar collector in different modes of tracking, the incidence angle modifier, the row shadowing and the end loss, in addition to the thermal losses and the conversion efficiency in every moment can be calculated using the developed model in this study.
The third part presents the design of the power block with a steam regenerative 50 MW
Rankine cycle, for solar installations with parabolic trough solar concentrators, and using two different fluids: thermic oil and molten salt. Due to the difference in the main stream parameters of the two power blocks, we can note that the power cycle efficiency at the assumed nominal conditions of the solar salt plant is higher than Therminol VP-1. While the fourth part of our study is based on evaluation and comparison of eight different configurations of these plants (with molten salt and thermic oil, with and without thermal storage system and backup system) in terms
of their design, thermodynamic yield (energetic and exergetic), economic factors and the environmental impacts. The results indicate that the configurations with integrated thermal energy storage and fossil fuel backup system are found to be more techno-economical, but on the other hand, they are less environment friendly.
In the last part, we optimized the two plants using the artificial neural network method. The results show that it is possible to get minimum values of LCOE of 8,3 and 7,0 cent $/kWh for oil and salt configurations, respectively. Moreover, a 4E (energy–exergy–environment–economic) comparison of the optimized plants is studied, in order to choose the best technology to be adapted in the viability study for Algerian locations. According to the feasibility analysis, the semi-arid and arid Algerian sites are suitable for realization of parabolic trough power plants with integrated
thermal energy storage and fuel backup system.Diplôme : Doctorat En ligne : ../theses/gmecanique/BOU6864.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10178 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/6864 BOU/6864 Thèse Bibliothèque principale Thèses Disponible
