2018 4th International Conference on Renewable Energies for Developing Countries (REDEC)最新文献_第3页

Phase Change Materials in a Domestic Solar Hot Water Storage Tank of the Lebanese Market 相变材料在黎巴嫩市场家用太阳能热水储罐中的应用

2018 4th International Conference on Renewable Energies for Developing Countries (REDEC) Pub Date : 2018-11-01 DOI: 10.1109/REDEC.2018.8597796

Omar Beih, S. A. Chakra

{"title":"Phase Change Materials in a Domestic Solar Hot Water Storage Tank of the Lebanese Market","authors":"Omar Beih, S. A. Chakra","doi":"10.1109/REDEC.2018.8597796","DOIUrl":"https://doi.org/10.1109/REDEC.2018.8597796","url":null,"abstract":"The availability of some kinds of renewable energy resources is un-continuous, for example the solar collectors can only produce heat when the sun is shining. Thermal Energy Storage (TES) is crucial to match between the intermittent solar heat supply and the heat demand. In this paper, a Phase Change Material (PCM) is integrated in the Domestic Solar Hot Water Storage Tank (DSHWST) as a Latent Heat Storage (LHT). Based on the application requirements in Lebanon, a suitable PCM is selected. While this PCM solidifies, it releases its heat and keeps the water inside the DSHWST warmer than 55 °C along 10 hours. The needed mass of PCM was calculated and two types of containers were investigated: the tubes and the spheres. As well as, the comparison between DSHWST integrated with PCM (DSHWST-PCM) and the Conventional Domestic Solar Hot Water Storage Tank (CDSHWST) is introduced, in order to examine the performance of PCM heating against that with an Electrical Resistance (ER). Features are expressed in terms of system payback and CO2 emission. Due to the issue of electrical power availability in Lebanon, the PCM integrated in The DSHWST has the following two advantages: yearly, reducing the primary electricity power by about 6.5 MWh and get rid of about 5.5 tons of CO2.","PeriodicalId":426643,"journal":{"name":"2018 4th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115654776","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: 4

Impact of Considering Variable Battery Power Profile of Electric Vehicles on the Distribution Network 考虑电动汽车电池功率分布变化对配电网的影响

2018 4th International Conference on Renewable Energies for Developing Countries (REDEC) Pub Date : 2018-11-01 DOI: 10.1109/REDEC.2018.8597742

C. El‐Bayeh, I. Mougharbel, M. Saad, A. Chandra, D. Asber, S. Lefebvre

引用次数: 10

Optimization of a Solar Photovoltaic Micro Grid for Electricity and Desalinated Water Production 用于电力和淡化水生产的太阳能光伏微电网优化

2018 4th International Conference on Renewable Energies for Developing Countries (REDEC) Pub Date : 2018-11-01 DOI: 10.1109/REDEC.2018.8597815

Adnan Zein, Chayban Ghabech, S. Karaki

{"title":"Optimization of a Solar Photovoltaic Micro Grid for Electricity and Desalinated Water Production","authors":"Adnan Zein, Chayban Ghabech, S. Karaki","doi":"10.1109/REDEC.2018.8597815","DOIUrl":"https://doi.org/10.1109/REDEC.2018.8597815","url":null,"abstract":"The sizing and operation of a renewable energy system to produce electricity and desalinated water for a self-sustained (isolated) community is presented and discussed in this paper. It is carried out using an algorithm based on ordinal optimization (OO) for sizing and dynamic programming (DP) for operation. DP is used to simulate and find the optimal operation strategy of the system for a given set of different system components’ sizes and loads. OO is an efficient method to search the design space and assess alternative designs and rank them initially using a simple model. The top-S designs are then identified and re-assessed using an accurate model to obtain a set of \"good enough\" solutions from which the best, with a given alignment probability, is identified. A system composed of a photo-voltaic (PV) generator, a battery storage system, a diesel generator, and a reverse osmosis system is proposed. Solar power being intermittent, a variable operation of the reverse osmosis system, in conjunction with a water storage tank, is proposed as a flexible load that can lead to higher energy efficiencies. Modeling of the power components is presented and the design results for different component prices and fuel costs are presented and discussed.","PeriodicalId":426643,"journal":{"name":"2018 4th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127160214","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: 5

The Beirut Solar Map 贝鲁特太阳地图

2018 4th International Conference on Renewable Energies for Developing Countries (REDEC) Pub Date : 2018-11-01 DOI: 10.1109/REDEC.2018.8597957

Sara Najem

引用次数: 4

Green Residential Village in Bekaa - Lebanon: Design and Certification Processes 黎巴嫩贝卡的绿色住宅村:设计和认证过程

2018 4th International Conference on Renewable Energies for Developing Countries (REDEC) Pub Date : 2018-11-01 DOI: 10.1109/REDEC.2018.8598026

Rayan Mourtada, A. Jouni, Doha Assaf, Fatima Al-Hajj, Sarah Shalhoub

{"title":"Green Residential Village in Bekaa - Lebanon: Design and Certification Processes","authors":"Rayan Mourtada, A. Jouni, Doha Assaf, Fatima Al-Hajj, Sarah Shalhoub","doi":"10.1109/REDEC.2018.8598026","DOIUrl":"https://doi.org/10.1109/REDEC.2018.8598026","url":null,"abstract":"ECOTECH Engineering is intending to construct a green village at Haouch Tal Safyat, Bekaa, Lebanon. This site was chosen due to several reasons including its distinctive location in the heart of Bekaa valley, which is special for its climate and affordable land. The project started with the preparation of the site to match the green requirements. This village called \"Heliopolis Compound\" contains 40 residential villas for the first stage. This paper completely covers the green design and certification of the residential villas. Each villa was perfectly designed to meet the GRASS green building rating system and thus getting the GRASS certification, validating that the design is highly successful and feasible. Meeting the level 1 \"Emerald\" of GRASS yielded an estimated over cost of 10% and the payback period of all improvements varies from 2 to 8 years depending on technology choices. Designing this compound was the first step in the long journey of green thinking in residential sector in Lebanon, and we hope it will be the bedrock of upcoming ideas concerning the green path we intended to follow.","PeriodicalId":426643,"journal":{"name":"2018 4th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125594175","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

[Copyright notice] (版权)

2018 4th International Conference on Renewable Energies for Developing Countries (REDEC) Pub Date : 2018-11-01 DOI: 10.1109/redec.2018.8597724

引用次数: 0

Infrared Thermography for Assessing Thermal Bridges and Humidity in Lebanese Building Components 红外热成像技术评估黎巴嫩建筑构件的热桥和湿度

2018 4th International Conference on Renewable Energies for Developing Countries (REDEC) Pub Date : 2018-11-01 DOI: 10.1109/REDEC.2018.8597892

B. Nehme, J. Jelwan, Roy Youssef, B. Zeghondy

引用次数: 1

Energy efficiency in dairy production, Elaboration of energy consumption rating, Lebanese case study 乳制品生产中的能源效率，能源消耗等级的细化，黎巴嫩案例研究

2018 4th International Conference on Renewable Energies for Developing Countries (REDEC) Pub Date : 2018-11-01 DOI: 10.1109/REDEC.2018.8597633

G. El-Jamal, C. Maatouk, M. Ghandour, A. Mourtada, Dr. Fouad Kaddah

引用次数: 0

Mixed-Integer Optimization for Volt/VAr Control in Radial Networks 径向网络电压/无功控制的混合整数优化

2018 4th International Conference on Renewable Energies for Developing Countries (REDEC) Pub Date : 2018-11-01 DOI: 10.1109/REDEC.2018.8598089

M. Knaiber, R. Jabr

{"title":"Mixed-Integer Optimization for Volt/VAr Control in Radial Networks","authors":"M. Knaiber, R. Jabr","doi":"10.1109/REDEC.2018.8598089","DOIUrl":"https://doi.org/10.1109/REDEC.2018.8598089","url":null,"abstract":"Due to the increase in load demand and capacity of distributed generation, radial distribution systems are exposed to voltage violation problems. Volt/VAr control (VVC) has a primary objective of removing voltage violations, and a secondary objective of minimizing the real power loss. Volt/VAr control operates on capacitor switches, transformer taps, and the reactive power set-points of distributed generation. In this paper, the VVC problem is solved using mixed-integer conic programming to establish a globally optimal benchmark. To improve computational performance, a discrete coordinate-descent algorithm is employed, starting from a solution to the continuous relaxation of the VVC mixed-integer conic program. Numerical results are reported on radial distribution networks with up to 3146 nodes. The results reveal that the discrete coordinate-descent algorithm, when initialized by solving a continuous conic program, can give solutions that are very close to the global optimum; these solutions are obtained within a very reasonable computing time and are superior to initiating the search from the current operating point.","PeriodicalId":426643,"journal":{"name":"2018 4th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116760165","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: 1

A Point-Absorber-Based Wave Energy Converter for Power Production in Lebanon : Renewable Energy 黎巴嫩用于发电的基于点吸收器的波能转换器:可再生能源

2018 4th International Conference on Renewable Energies for Developing Countries (REDEC) Pub Date : 2018-11-01 DOI: 10.1109/REDEC.2018.8598003

Guy Salame, Elio Frem, Elias Albona, Charbel Bou-Mosleh, P. Rahme

引用次数: 2