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Partager le résultat de cette recherche Interroger des sources externesÉtude et réalisation d’un Capteur Cylindro-Parabolique à poursuite, installé dans une serre. / Reda Tahtah
Titre : Étude et réalisation d’un Capteur Cylindro-Parabolique à poursuite, installé dans une serre. Type de document : texte imprimé Auteurs : Reda Tahtah, Auteur ; Ali Bouchoucha, Directeur de thèse Mention d'édition : 24/12/2019 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2019 Importance : 139 f. Format : 30 cm. Note générale : Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Génie MécaniqueTags : G.Mécanique: Génie Thermique et Energétique Concentrateur Cylindro-parabolique Soleil Absorbeur Poursuite solaire Raspberry Pi3 Arduino Serre Simulation Solaire thermique Stockage thermique Fluide caloporteur Parabolic trough collector Solar Absorber Solar tracking Glass cover Solar Thermal Thermal storage heat transfer fluid مكثف قطع مكافئ الشمس أنبوب الإمتصاص الأشعة الشمسية الغطاء الزجاجي محاكاة الطاقة الشمسية-الحرارية التخزين الحراري سائل نقل الحرارة Index. décimale : 620 Génie Mécanique Résumé :
The subject of our thesis presents a realization and study of two parabolic trough collectors with and without glass cover. The aim is to increase the heat flux at the absorber, as well as the elimination of the cosine effect to obtain a good thermal storage in the tank. the solar field of this city has been studied, before installing the concentrators in Ghardaïa city. The experimental results obtained are validated by three mathematical models with the data base of the radiometric station of Ghardaïa city. The first parabolic trough collector is characterized by a variable focus axis, which allowed to have a range of different concentrations imposed on the absorber. Consequently, it has found that the best heat exchange is achieved when all or a quarter of the absorber tube is exposed to solar radiation. In addition, two types of heat transfer fluids (water and thermal oil Seriola 320) was compared for their thermal storage efficiencies inside the tank during the evening, where it has shown that thermal storage with water is more efficient and effective than thermal oil. Based on the achieved above results, constructed a second parabolic trough collector oriented perpendicularly to the sun, from the morning till the evening, for a whole one year. Temperature measurements are obtained using an automatic solar tracking electronic circuit, using Raspberry Pi3 and Arduino boards for collecting data. In addition, our prototype has been protected by a glass cover; this envelop protects the entire concentrator against the undesirable effects of dust and rain. Also, it contributes to increase the heat transfer of the absorber and to reduce convective thermal losses and radiative to the environment.
Note de contenu :
Annexes.Diplôme : Doctorat En ligne : ../theses/gmecanique/TAH7631.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11466 Étude et réalisation d’un Capteur Cylindro-Parabolique à poursuite, installé dans une serre. [texte imprimé] / Reda Tahtah, Auteur ; Ali Bouchoucha, Directeur de thèse . - 24/12/2019 . - جامعة الإخوة منتوري قسنطينة, 2019 . - 139 f. ; 30 cm.
Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Génie MécaniqueTags : G.Mécanique: Génie Thermique et Energétique Concentrateur Cylindro-parabolique Soleil Absorbeur Poursuite solaire Raspberry Pi3 Arduino Serre Simulation Solaire thermique Stockage thermique Fluide caloporteur Parabolic trough collector Solar Absorber Solar tracking Glass cover Solar Thermal Thermal storage heat transfer fluid مكثف قطع مكافئ الشمس أنبوب الإمتصاص الأشعة الشمسية الغطاء الزجاجي محاكاة الطاقة الشمسية-الحرارية التخزين الحراري سائل نقل الحرارة Index. décimale : 620 Génie Mécanique Résumé :
The subject of our thesis presents a realization and study of two parabolic trough collectors with and without glass cover. The aim is to increase the heat flux at the absorber, as well as the elimination of the cosine effect to obtain a good thermal storage in the tank. the solar field of this city has been studied, before installing the concentrators in Ghardaïa city. The experimental results obtained are validated by three mathematical models with the data base of the radiometric station of Ghardaïa city. The first parabolic trough collector is characterized by a variable focus axis, which allowed to have a range of different concentrations imposed on the absorber. Consequently, it has found that the best heat exchange is achieved when all or a quarter of the absorber tube is exposed to solar radiation. In addition, two types of heat transfer fluids (water and thermal oil Seriola 320) was compared for their thermal storage efficiencies inside the tank during the evening, where it has shown that thermal storage with water is more efficient and effective than thermal oil. Based on the achieved above results, constructed a second parabolic trough collector oriented perpendicularly to the sun, from the morning till the evening, for a whole one year. Temperature measurements are obtained using an automatic solar tracking electronic circuit, using Raspberry Pi3 and Arduino boards for collecting data. In addition, our prototype has been protected by a glass cover; this envelop protects the entire concentrator against the undesirable effects of dust and rain. Also, it contributes to increase the heat transfer of the absorber and to reduce convective thermal losses and radiative to the environment.
Note de contenu :
Annexes.Diplôme : Doctorat En ligne : ../theses/gmecanique/TAH7631.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11466 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité TAH/7631 TAH/7631 Thèse Bibliothèque principale Thèses Disponible
Titre : Optimisation d'une centrale solaire intégrée à cycle combiné turbine à vapeur-turbine à gaz. Type de document : texte imprimé Auteurs : Mohammed Boumedjirek, Auteur ; Abderrezak Merabet, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2019 Importance : 118 f. Format : 30 cm. Note générale : Doctorat 3éme CYCLE LMD.
2 copies imprimées disponiblesLangues : Français (fre) Catégories : Français - Anglais
Génie MécaniqueTags : G. Mécanique: Génie Thermique et Énergétique combiné énergie génération hybride solaire performance combined energy generation hybrid solar مجتمعة الطاقة توليد هجين الطاقة الشمسية الأداء Index. décimale : 620 Génie Mécanique Résumé : Solar energy in combined cycle power plants are becoming important as an efficient option among conventional thermal power plants. Nowadays, a great amount of combined cycle gas turbine power plants have been installed and some of them have been working for an appreciable period of time. Work with solar energy it is enough to present some notion about solar radiation as well as the methods and mechanism of system integration were studied. Parabolic trough power plants have been developed in the integrated solar combined cycle system (ISCCS) and the direct steam generation (DSG), each concept has their configuration due to solar energy combination .The technology for the Solar Aided Power Generation (SAPG) is appeared for optimizing this combination in solar contribution to cycle efficiency The target of this work is to evaluate the thermodynamic performance on solar hybrid power plants system for ISCCS and DSG concepts in comparison for a solar to electricity efficiency. However the previous studies have only been based on solar contribution for the ISCCS concept. A 150 [MW] ISCCS power plant operational actually in Hassi R’male in south Algeria is selected as the case study compared to DSG concepts technology. Furthermore the Solar Aided Power Generation is proposed in new DSG concept to assuming the solar contribution with evaluation method, for to calculate the generation share of the solar power system in each concept. The study shows that the DSG concept is the best hybrid system to solar-electric efficiency .Further results obtained indicate that solar contribution increase to the DSG concept proposed on TRNSYS software , in the best extraction of solar thermal for to preheat the feed water heater. The economic study shows the performance in these concepts and shows the lower Levelized energy cost (LEC). The performance of the SAPG in new DSG concept, estimate the effect of the solar collector area in each concept for annual solar thermal energy.
Note de contenu : Annexes. Diplôme : Doctorat En ligne : ../theses/gmecanique/BOU7498.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11330 Optimisation d'une centrale solaire intégrée à cycle combiné turbine à vapeur-turbine à gaz. [texte imprimé] / Mohammed Boumedjirek, Auteur ; Abderrezak Merabet, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2019 . - 118 f. ; 30 cm.
Doctorat 3éme CYCLE LMD.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Génie MécaniqueTags : G. Mécanique: Génie Thermique et Énergétique combiné énergie génération hybride solaire performance combined energy generation hybrid solar مجتمعة الطاقة توليد هجين الطاقة الشمسية الأداء Index. décimale : 620 Génie Mécanique Résumé : Solar energy in combined cycle power plants are becoming important as an efficient option among conventional thermal power plants. Nowadays, a great amount of combined cycle gas turbine power plants have been installed and some of them have been working for an appreciable period of time. Work with solar energy it is enough to present some notion about solar radiation as well as the methods and mechanism of system integration were studied. Parabolic trough power plants have been developed in the integrated solar combined cycle system (ISCCS) and the direct steam generation (DSG), each concept has their configuration due to solar energy combination .The technology for the Solar Aided Power Generation (SAPG) is appeared for optimizing this combination in solar contribution to cycle efficiency The target of this work is to evaluate the thermodynamic performance on solar hybrid power plants system for ISCCS and DSG concepts in comparison for a solar to electricity efficiency. However the previous studies have only been based on solar contribution for the ISCCS concept. A 150 [MW] ISCCS power plant operational actually in Hassi R’male in south Algeria is selected as the case study compared to DSG concepts technology. Furthermore the Solar Aided Power Generation is proposed in new DSG concept to assuming the solar contribution with evaluation method, for to calculate the generation share of the solar power system in each concept. The study shows that the DSG concept is the best hybrid system to solar-electric efficiency .Further results obtained indicate that solar contribution increase to the DSG concept proposed on TRNSYS software , in the best extraction of solar thermal for to preheat the feed water heater. The economic study shows the performance in these concepts and shows the lower Levelized energy cost (LEC). The performance of the SAPG in new DSG concept, estimate the effect of the solar collector area in each concept for annual solar thermal energy.
Note de contenu : Annexes. Diplôme : Doctorat En ligne : ../theses/gmecanique/BOU7498.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11330 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/7498 BOU/7498 Thèse Bibliothèque principale Thèses Disponible 
Titre : Contribution à l’etude et a la simulation d’un concentrateur cylindro-parabolique Type de document : texte imprimé Auteurs : Nadia Bouguetaia, Auteur ; N. Bellel, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2013 Importance : 94 f. Format : 30 cm Note générale : 2 copies imprimées disponibles Langues : Français (fre) Catégories : Français - Anglais
PhysiqueTags : concentrateurs solaire énergies solaire Cylindro-parabolique concentration solar concentrators solar parabolic through plant المركزات الشمسية الطاقة الشمسية أسطواني مكافئ التركيزالشمسي Index. décimale : 530 Physique Résumé : This study focuses on the mathematical modelling of solar concentrator type “parabolic trough plan” a thermal balance was established respectively on the coolant on the absorber tube and the glass envelope, the system of equations obtained is solved by the method of finite differences results are obtained for a typical day, the variation of the temperature of the coolant, the absorber tube and the glass envelope and the evolution of the power of the heat loss and efficiency of the concentrator and the influence of parameters (geometrical and optical) on the prototype. Diplôme : Magistère En ligne : ../theses/physique/BOU6408.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9427 Contribution à l’etude et a la simulation d’un concentrateur cylindro-parabolique [texte imprimé] / Nadia Bouguetaia, Auteur ; N. Bellel, Directeur de thèse . - constantine [Algérie] : Université Constantine 1, 2013 . - 94 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
PhysiqueTags : concentrateurs solaire énergies solaire Cylindro-parabolique concentration solar concentrators solar parabolic through plant المركزات الشمسية الطاقة الشمسية أسطواني مكافئ التركيزالشمسي Index. décimale : 530 Physique Résumé : This study focuses on the mathematical modelling of solar concentrator type “parabolic trough plan” a thermal balance was established respectively on the coolant on the absorber tube and the glass envelope, the system of equations obtained is solved by the method of finite differences results are obtained for a typical day, the variation of the temperature of the coolant, the absorber tube and the glass envelope and the evolution of the power of the heat loss and efficiency of the concentrator and the influence of parameters (geometrical and optical) on the prototype. Diplôme : Magistère En ligne : ../theses/physique/BOU6408.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9427 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/6408 BOU/6408 Thèse Bibliothèque principale Thèses Disponible Documents numériques
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