Journal of Renewable Energies最新文献

Low-Reynolds-number turbulent forced-convection flow over graded baffle plates 分级障板上的低雷诺数湍流强制对流

Journal of Renewable Energies Pub Date : 2024-01-09 DOI: 10.54966/jreen.v19i2.564

Y. Menni, C. Zidani, A. Azzi, B. Benyoucef

引用次数: 1

Experimental investigation of thermal performance evaluation and thermodynamic analysis of domestic box type solar cooker with inclined aperture area 具有倾斜开孔面积的家用箱式太阳灶的热性能评估和热力学分析实验研究

Journal of Renewable Energies Pub Date : 2024-01-09 DOI: 10.54966/jreen.v19i2.562

F. Yettou, A. Gama, Narayan Lal Panwar, Ali Malek, B. Azoui

{"title":"Experimental investigation of thermal performance evaluation and thermodynamic analysis of domestic box type solar cooker with inclined aperture area","authors":"F. Yettou, A. Gama, Narayan Lal Panwar, Ali Malek, B. Azoui","doi":"10.54966/jreen.v19i2.562","DOIUrl":"https://doi.org/10.54966/jreen.v19i2.562","url":null,"abstract":"In this paper, the thermal performances of a box solar cooker were rated with F1 and F2 parameters as per Mullick’s procedure [1], the efficiency of the cooker was evaluated using energy and exergy analysis. The solar cooker was designed with an inclined aperture area, realized and experimentally tested at Applied Research Unit on Renewable Energies of Ghardaïa (32.39 °N, 3.78 °E, 463 m), Algeria. The developed cooker is equipped with one reflector mirror on its lid. The experiments have been carried out with the cooker empty, filled with one or two liters of water from 08:00 to 15:00 solar time, the thermal profiles of various components of the cooker were assessed at Ghardaïa site Sahara climatic conditions on clear days in both winter and summer months. According to the values of two figures of merits suggested by International Standards and evaluated by the experimental studies, the configuration with an inclined aperture area of the cooker resulted in good cooking performances, especially in winter when the sun’s elevation is low; keeping the realized cooker performances in range of the international standard tests. The results of this study indicate also that the average daily energy and exergy efficiency of the realized cooker was 16.2 % and 0.90 % respectively, during the experimental period, which indicate a significant difference between the results of energy and exergy analyses. Thus developing such a box solar cooker can improve the efficiency of the design and use a position of the system to prepare food in a shorter time.","PeriodicalId":314878,"journal":{"name":"Journal of Renewable Energies","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140512096","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}

引用次数: 0

Single-Phase nine-level inverter for photovoltaic application 用于光伏应用的单相九电平逆变器

Journal of Renewable Energies Pub Date : 2024-01-09 DOI: 10.54966/jreen.v19i2.559

A. Loukriz, S. Messalti, A. Zemmit, M. Haddadi

引用次数: 0

Estimation and monitoring of grid connected PV system generation 并网光伏系统发电量的估算和监测

Journal of Renewable Energies Pub Date : 2024-01-09 DOI: 10.54966/jreen.v19i2.567

S. Bouchakour, A. Tahour, K. Abdeladim, H. Sayah, Amar Hadj Arab

{"title":"Estimation and monitoring of grid connected PV system generation","authors":"S. Bouchakour, A. Tahour, K. Abdeladim, H. Sayah, Amar Hadj Arab","doi":"10.54966/jreen.v19i2.567","DOIUrl":"https://doi.org/10.54966/jreen.v19i2.567","url":null,"abstract":"This paper presents a new method to identify the operating performance parameters of a photovoltaic (PV) generator and a grid connected inverter. This method has been applied to the behavior modeling and simulation of the grid connected PV system at the Centre de Developpement des Energies Renouvelables (CDER) in Algeria. The PV module (PVM) parameters has been identified in static with outdoor measurements of I-V curves in order to model the PV array generation. Using the Linear Reoriented Coordinates Method (LRCM), the prediction of maximum power point (MPP) of the PV array has been performed without using complicate approximations or Taylor series. In order to estimate the ac output power, a PV inverter performance model based on empirical relationship was used. However, an accurate identification of the inverter performance parameters is performed using an optimization algorithm, named Levenberg-Marquardt (LM) algorithm, and a moutput current and voltage. The simulation results were achieved through MATLAB/Simulink environment, for the setting and the testing of the models. The results show a good agreement between the measured and estimated results based on the identified parameters. The integration of the proposed method and the presented model present a simple way to estimate the expected system performance with a high degree of accuracy. This solution allows a development of automatic supervision, energy generation prediction and fault detection procedure.","PeriodicalId":314878,"journal":{"name":"Journal of Renewable Energies","volume":"46 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140512078","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}

引用次数: 0

Etude du temps d’amorçage d’une génératrice asynchrone auto-excitée par la méthode de plan d’expériences 利用实验设计法研究自励磁异步发电机的启动时间

Journal of Renewable Energies Pub Date : 2024-01-09 DOI: 10.54966/jreen.v19i2.563

Jean Paul Yembi, Adolphe Moukengué Imano

引用次数: 0

Phosphorus emitter profile control for silicon solar cell using the doss diffusion technique 利用多斯扩散技术控制硅太阳能电池的磷发射极轮廓

Journal of Renewable Energies Pub Date : 2024-01-09 DOI: 10.54966/jreen.v19i2.569

R. Chaoui, B. Mahmoudi, A. Messaoud, Y. S. Ahmed, Amine Mefoued

引用次数: 1

DSP based space vector PWM control for solar electric vehicle 基于 DSP 的太阳能电动汽车空间矢量 PWM 控制

Journal of Renewable Energies Pub Date : 2024-01-09 DOI: 10.54966/jreen.v19i2.571

H. Saidi, R. Taleb, N. Mansour, A. Midoun

{"title":"DSP based space vector PWM control for solar electric vehicle","authors":"H. Saidi, R. Taleb, N. Mansour, A. Midoun","doi":"10.54966/jreen.v19i2.571","DOIUrl":"https://doi.org/10.54966/jreen.v19i2.571","url":null,"abstract":"Solar Electric Vehicles (SEV) are considered the future vehicles to solve the issues of air pollution, global warming, and the rapid decreases of the petroleum resources facing the current transportation technology. However, SEV are still facing important technical obstacles to overcome. They include batteries energy storage capacity, charging times, efficiency of the solar panels and electrical propulsion systems. Solving any of those problems and electric vehicles will compete-complement the internal combustion engines vehicles. In the present work, we propose an electrical propulsion system based on three phase induction motor in order to obtain the desired speed and torque with less power loss. Because of the need to lightweight nature, small volume, low cost, less maintenance and high efficiency system, a three phase squirrel cage induction motor (IM) is selected in the electrical propulsion system. The IM is fed from three phase inverter operated by a constant V/F control method and Space Vector Pulse Width Modulation (SVPWM) algorithm. The proposed control strategy has been implemented on the texas instruments TM320F2812 Digital Signal Processor (DSP) to generate SVPWM signal needed to trigger the gates of IGBT based inverter. The inverter used in this work is a three phase inverter IRAMY20UP60B type. The experimental results show the ability of the proposed control strategy to generate a three-phase sine wave signal with desired frequency. The proposed control strategy is experimented on a locally manufactured EV prototype. The results show that the EV prototype can be propelled to speed up to 60km/h under different road conditions.","PeriodicalId":314878,"journal":{"name":"Journal of Renewable Energies","volume":"3 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140511959","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}

引用次数: 2

Modélisation et dimensionnement d’un système hybride Eolien/ Photovoltaïque autonome 独立风能/光伏发电混合系统的建模和选型

Journal of Renewable Energies Pub Date : 2024-01-09 DOI: 10.54966/jreen.v19i2.566

Sid Ali Derai, Abdelhamid Kaabeche

引用次数: 0

Etude et réalisation d'un dispositif de correction d'angle d'inclinaison d'un système photovoltaïque 光伏系统倾斜角校正装置的设计与生产

Journal of Renewable Energies Pub Date : 2024-01-09 DOI: 10.54966/jreen.v19i2.560

Daoud Rezzak, Mabrouk Adouane, K. Touafek, Abdelkader Si_Tayeb, Yehya Houam

引用次数: 0

Etude expérimentale d’un cuiseur solaire de type boîte à trois réflecteurs plans et une surface d’ouverture inclinée 带有三个平面反射器和一个倾斜孔面的箱式太阳能灶的实验研究

Journal of Renewable Energies Pub Date : 2023-11-12 DOI: 10.54966/jreen.v10i1.796

A. Harmim, M. Boukar, M. Amar

引用次数: 0