2022 13th International Renewable Energy Congress (IREC)最新文献

Valorization of waste cooking oil into bio-sourced products 废弃食用油转化为生物源产品的研究

2022 13th International Renewable Energy Congress (IREC) Pub Date : 2022-12-13 DOI: 10.1109/IREC56325.2022.10001971

H. Chenni, M. Djeghballou, S. Daba, N. Outili, A. H. Meniai

引用次数: 0

An Approach to Dynamic Behaviour of a Grid Connected PV System During Symmetrical Short Circuit Fault 并网光伏系统对称短路故障动态特性研究

2022 13th International Renewable Energy Congress (IREC) Pub Date : 2022-12-13 DOI: 10.1109/IREC56325.2022.10002093

Hussin Zahloul, H. Hamzehbahmani, A. Khaliq, S. Veremieiev

引用次数: 0

Electrolyzer Degradation influence on power electronics performance for 6-pulse thyristor rectifier in a large-scale water electrolyzer 电解槽退化对大型水电解槽中6脉冲晶闸管整流器电力电子性能的影响

2022 13th International Renewable Energy Congress (IREC) Pub Date : 2022-12-13 DOI: 10.1109/IREC56325.2022.10002014

M. Keddar, Marcos Da Conceicao, M. Doumbia, Zhifeng Zhang

引用次数: 0

Examination of Low Voltage Grid- Connected PV Generation Under Different Penetration Levels 不同渗透水平下的低压光伏并网发电研究

2022 13th International Renewable Energy Congress (IREC) Pub Date : 2022-12-13 DOI: 10.1109/IREC56325.2022.10002140

Z. Rajab, A. Asheibi, M. Almaktar, A. Khalil, A. Elbreki, F. Mohamed

{"title":"Examination of Low Voltage Grid- Connected PV Generation Under Different Penetration Levels","authors":"Z. Rajab, A. Asheibi, M. Almaktar, A. Khalil, A. Elbreki, F. Mohamed","doi":"10.1109/IREC56325.2022.10002140","DOIUrl":"https://doi.org/10.1109/IREC56325.2022.10002140","url":null,"abstract":"The existence of abundant and free solar energy has contributed to the rapid development of PV systems, particularly rooftop installations and solar plants construction at transmission and distribution levels. Nevertheless, high penetration level of PV systems at distribution network level could potentially lead to abnormal operation of network. At steady state, the impacts are experienced on voltage (level, profile, stability and drop), line losses, equipment loading, etc. In this paper, a part of Benghazi distribution network is simulated by NEPLAN software. A real data for load and weather were used to simulate the real condition. The paper studies the impacts by comparing the behavior of the distribution grid without PV installations and with PV systems installed with different penetration levels (0%, 50%, 65% and 75%). The results generally showed that the installation of rooftop PV systems caused improvement in voltage profile, decreasing equipment’s (transformers and lines/feeders) loading and line losses. On the other hand, extensive deployment of PV capacity will cause an increase in equipment’s loading. The high penetration of PV systems will also affect the voltage profile, voltage level, and losses. From the results, the allowable penetration percentage (Hosting capacity) for the simulated network must not exceed 65%.","PeriodicalId":115939,"journal":{"name":"2022 13th International Renewable Energy Congress (IREC)","volume":"218 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115186258","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

Evaluating solar-driven ejector efficiency used in hybrid conventional air conditioning systems: a parametric study 评估太阳能驱动喷射器在混合常规空调系统中的效率:参数研究

2022 13th International Renewable Energy Congress (IREC) Pub Date : 2022-12-13 DOI: 10.1109/IREC56325.2022.10002070

B. Elhub, A. Elbreki, A. Ammar, M. Mohammad, Zakariya Rajab, Fasial Mohamed

{"title":"Evaluating solar-driven ejector efficiency used in hybrid conventional air conditioning systems: a parametric study","authors":"B. Elhub, A. Elbreki, A. Ammar, M. Mohammad, Zakariya Rajab, Fasial Mohamed","doi":"10.1109/IREC56325.2022.10002070","DOIUrl":"https://doi.org/10.1109/IREC56325.2022.10002070","url":null,"abstract":"In this paper, we investigated the performance of a hybrid ejector cooling system combined with a vapor system. The ejector system was operated at 70% and 80% of the compression cycle in the simulation. The hybrid ejector air conditioning system was modeled with EES software, and the refrigerant used was R134a. For maximum ejector performance, superheated conditions were assumed for the primary flow stream. The solar generator temperature ranged from 80 °C to 100 °C. The condenser temperature was from 30 °C to 40 °C, and the operating temperature of the evaporator was 8 °C to 12 °C. The obtained results indicated that under any operating condition, the optimum values of pressure drop in the suction chamber, ejector area ratio, ejector outlet pressure, and cooling coefficient of performance (COP) differed. The COP of the basic ejector cycle reached 0.616, given that the ejector cooling cycle worked in different conditions. By comparison, the value for the hybrid combined with the compression cycle system reached 0.91, which increased from 25% to 29% compared with the basic ejector cycle. The performance of the system with the ejector was better than that of the basic system even in the case of off design operation.","PeriodicalId":115939,"journal":{"name":"2022 13th International Renewable Energy Congress (IREC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116925911","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

The Effects of Orientation and Ceiling Height on the Thermal Comfort in the Traditional and Contemporary House in Byblos City Lebanon 朝向和天花板高度对黎巴嫩比布鲁斯市传统和现代住宅热舒适的影响

2022 13th International Renewable Energy Congress (IREC) Pub Date : 2022-12-13 DOI: 10.1109/IREC56325.2022.10002118

Amal Chkeir, Y. Bouzidi, Zoubayre El akili, Mahmoud Charafeddine, Zeinab Kashmar

引用次数: 2

Dry reforming of polypropylene over Ni and Ru-Ni catalysts supported on mesoporous alumina: Effect of calcination temperature 介孔氧化铝负载的Ni和Ru-Ni催化剂上聚丙烯干重整:煅烧温度的影响

2022 13th International Renewable Energy Congress (IREC) Pub Date : 2022-12-13 DOI: 10.1109/IREC56325.2022.10001904

Aida Younis, C. Gennequin, E. A. Aad, Jane Estephane, S. Aouad

引用次数: 0

Design and Analysis of a Renewable Hydrogen system for biogas production 用于沼气生产的可再生氢气系统设计与分析

2022 13th International Renewable Energy Congress (IREC) Pub Date : 2022-12-13 DOI: 10.1109/IREC56325.2022.10002092

Pierre Briot, Julien Dehame, Arnaud Desaphix, M. Nachidi, Fernando Tadeo

引用次数: 0

Comparison study between PID and Fuzzy Logic Controller to improve performance of AVR system for synchronous generators 提高同步发电机AVR系统性能的PID与模糊控制器的比较研究

2022 13th International Renewable Energy Congress (IREC) Pub Date : 2022-12-13 DOI: 10.1109/IREC56325.2022.10002030

Salwa Almoshity, Khaled. A. Gouda, Salema Younus, F. Mohamed, A. Elbreki

{"title":"Comparison study between PID and Fuzzy Logic Controller to improve performance of AVR system for synchronous generators","authors":"Salwa Almoshity, Khaled. A. Gouda, Salema Younus, F. Mohamed, A. Elbreki","doi":"10.1109/IREC56325.2022.10002030","DOIUrl":"https://doi.org/10.1109/IREC56325.2022.10002030","url":null,"abstract":"Voltage regulator is very essential in controlling a constant output voltage due to changes in input voltage or load conditions, It is also important in controlling the voltage in photovoltaic systems and contributes to improving their performance and protection. The conventional technologies to control the Automatic Voltage Regulator (AVR) shows exhibit robustness and time-consuming when it is tuned. In this paper, the comparison study of a fuzzy logic and a PID controller for AVR is presented the purpose of this work is to provide a better understanding of the characteristics of AVR as a power system stabilizer (PSS) and to build an AVR controller utilizing PID and fuzzy logic. Based on a single machine, infinite bus system, the simulation was created fuzzy logic controller (FLC )is formed from three sets of rules which are based on fuzzification, rule evaluation and defuzzification. The performances for both PID and Fuzzy logic controller are compared in term of AVR terminal voltage output stability. It is suggested that FLC offer better performance compared to PID.","PeriodicalId":115939,"journal":{"name":"2022 13th International Renewable Energy Congress (IREC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132318894","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

Numerical building energy simulation with phase change materials including hysteresis effect for different square building cases in a semi-arid climate 半干旱气候条件下含滞后效应相变材料的方形建筑能耗数值模拟

2022 13th International Renewable Energy Congress (IREC) Pub Date : 2022-12-13 DOI: 10.1109/IREC56325.2022.10002008

Imad Ait Laasri, Niima Es-sakali, A. Outzourhit, Mohamed Oualid Mghazli

{"title":"Numerical building energy simulation with phase change materials including hysteresis effect for different square building cases in a semi-arid climate","authors":"Imad Ait Laasri, Niima Es-sakali, A. Outzourhit, Mohamed Oualid Mghazli","doi":"10.1109/IREC56325.2022.10002008","DOIUrl":"https://doi.org/10.1109/IREC56325.2022.10002008","url":null,"abstract":"Phase change materials (PCM) have captured the interest of researchers in the building sector. As these PCMs could provide a passive temperature regulation, which will help in reducing the energy consumption of Heating, Ventilation and Air-Conditioning (HVAC) units. The implementation of PCMs in buildings requires an encapsulation to ensure no leakage occurs during phase change. The need to assess the energy savings of the PCMs at different building volumes is necessary, so that we can have an idea about the energy savings, cost and payback period of this passive thermal regulation solution. Hence, this paper will evaluate and compare 4 different building volumes in a semi-arid climate with the use of the EnergyPlus simulation engine for the commercial PCM RT 28. These four different building volumes are the following, a 10 m x 10 m, 9 m x 9 m, 8 m x 8 m and 7 m x 7 m square building with a respectively story height of 3 m, 2.7 m, 2.4 m and 2.1 m. The chosen story heights were carefully selected to maintain a constant length to height ratio throughout the different square building volumes. Thus, the main objective of this study is to assess the indoor air temperature fluctuation reduction, the PCM energy savings and the payback period for these different building volumes. The results reveal a great temperature regulation during the summer periods with a maximum temperature fluctuation reduction of 557.7 °C for the 7 m square building. In addition, the most energy efficient building was found to be the 10 m x 10 m x 3 m square building, which was able to save an annual energy of 1600.44 kWh with a low return payback period of 22.38 years.","PeriodicalId":115939,"journal":{"name":"2022 13th International Renewable Energy Congress (IREC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130494352","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: 6