Renewable Energy and Sustainable Development最新文献_第8页

A review of Indirect Matrix Converter Topologies 间接矩阵转换器拓扑综述

Renewable Energy and Sustainable Development Pub Date : 2015-08-11 DOI: 10.21622/RESD.2015.01.1.030

S. Rahmani, L. Rmili, K. Al-haddad

引用次数: 2

Modelling of Diesel Generator Sets That Assist Off-Grid Renewable Energy Micro-grids 辅助离网可再生能源微电网的柴油发电机组建模

Renewable Energy and Sustainable Development Pub Date : 2015-08-11 DOI: 10.21622/RESD.2015.01.1.072

J. Salazar, F. Tadeo, C. Prada

引用次数: 11

Pitch Angle Control for Variable Speed Wind Turbines 变速风力发电机的俯仰角控制

Renewable Energy and Sustainable Development Pub Date : 2015-08-11 DOI: 10.21622/RESD.2015.01.1.081

M. Smida, A. Sakly

引用次数: 23

Ruled-based control of off-grid desalination powered by renewable energies 基于规则的可再生能源离网海水淡化控制

Renewable Energy and Sustainable Development Pub Date : 2015-08-11 DOI: 10.21622/RESD.2015.01.1.205

A. Serna, F. Tadeo, David Torrijos

引用次数: 2

On the Long-term Behaviour of Wind-Wave Climatology over the West Region of Scotland, UK 英国苏格兰西部地区风浪气候学的长期变化

Renewable Energy and Sustainable Development Pub Date : 2015-08-11 DOI: 10.21622/RESD.2015.01.1.113

T. El-Geziry

{"title":"On the Long-term Behaviour of Wind-Wave Climatology over the West Region of Scotland, UK","authors":"T. El-Geziry","doi":"10.21622/RESD.2015.01.1.113","DOIUrl":"https://doi.org/10.21622/RESD.2015.01.1.113","url":null,"abstract":"Using 38 years (January 1973-December 2010) of hourly wind records, the present paper aims at drawing the possible long-term trends of winds and ten surface wave parameters over the west region of Scotland using the quadratic regression approach. Four dominant wind components were determined: the southern, the western, the south-western and the north-western. Two opposite groups of oscillations were proven: one for the southern groups and one for the western groups. The examined wave parameters were: the wave frequency, the wave angular frequency, the peak angular frequency, the wave spectral density, the significant wave height, the peak period, both the peak and group velocities and lastly the wave energy and the wave power. Results revealed that every examined parameter tended to have a cyclic behaviour except the wave spectral density, which appeared to be linearly decreasing. All wave frequencies were in an inverse correlation to the mean monthly wind speed. All other wave parameters appeared to be highly correlated to the mean monthly wind speed with correlation factors exceeding 0.95 except the wave power, which had a correlation factor of 0.89. In conclusion, the general behaviours of the dominant wind components over the west region of Scotland, and of the different wave parameters tend to be cyclic. A longer time series, than that presently used, will be advantageous in order to strengthen this outcome with more robust investigation. This concluded cyclic behaviour may positively impact on the engineering work within the wave energy resource off the western coasts of Scotland.","PeriodicalId":31382,"journal":{"name":"Renewable Energy and Sustainable Development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68575218","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

Numerical Analysis of Fluid Flow and Heat Transfer for Different Fin Designs and Arrangements of Ceramic Plate-Fin High Temperature Heat Exchanger - Part I 陶瓷板翅高温换热器不同翅片设计和布置的流体流动和传热数值分析。第1部分

Renewable Energy and Sustainable Development Pub Date : 2015-08-11 DOI: 10.21622/RESD.2015.01.1.089

Yitung Chen, Vijaisri Nagarajan

{"title":"Numerical Analysis of Fluid Flow and Heat Transfer for Different Fin Designs and Arrangements of Ceramic Plate-Fin High Temperature Heat Exchanger - Part I","authors":"Yitung Chen, Vijaisri Nagarajan","doi":"10.21622/RESD.2015.01.1.089","DOIUrl":"https://doi.org/10.21622/RESD.2015.01.1.089","url":null,"abstract":"In this study numerical analysis is carried out for four different types of fins namely rectangular, triangular, inverted bolt fins and ripsaw fins and two different types of arrangements namely staggered and top and bottom arrangement. The obtained results are compared with each other and the design with best heat transfer and minimum pressure drop is selected. The working fluids used in the model are sulfur trioxide, sulfur dioxide, oxygen and water vapor. The operating pressure is 1.5 MPa and the operating temperature ranges from 973 K to 1223 K. From the results it was found that the ripsaw fin design with thickness of 0.00005 m gives a good heat transfer rate with minimum pressure drop. The inverted bolt fins also gives a good heat transfer rate but due to the fin arrangement and the flow disturbances caused by the arrangement the pressure drop is the highest compared to other fins. The pressure drop and the heat transfer obtained for the rectangular and triangular fins are similar to each other. Friction factor, Colburn j- factor and non-dimensionless numbers like Nusselt number, Schmidt number are calculated for all the models. The average Nusselt number obtained for the ripsaw fin design with thickness of 0.00005 m for the staggered and top and bottom arrangement are 3.197 and 3.023. The friction factor for the ripsaw fins for the staggered and the top and bottom arrangement are 0.522 and 0.589.","PeriodicalId":31382,"journal":{"name":"Renewable Energy and Sustainable Development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68574437","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

Energy Retrofitting of the Mediterranean Terrace Dwellings 地中海露台住宅的能源改造

Renewable Energy and Sustainable Development Pub Date : 2015-08-11 DOI: 10.21622/RESD.2015.01.1.138

D. Serghides, M. Markides, M. Katafygiotou

{"title":"Energy Retrofitting of the Mediterranean Terrace Dwellings","authors":"D. Serghides, M. Markides, M. Katafygiotou","doi":"10.21622/RESD.2015.01.1.138","DOIUrl":"https://doi.org/10.21622/RESD.2015.01.1.138","url":null,"abstract":"The building sector in Europe is responsible for an estimated 40% of the total energy consumption. It is well established that the reduction of building energy consumption necessitates energy efficient renovation of the existing buildings. In order to achieve this objective it is necessary to document the existing building stock. This paper focuses on the existing terrace housing in the Mediterranean region and specifically in Cyprus. The processing of the statistical data was carried out and the building typologies were developed based on a harmonised structure for European building typologies according to the IEE EPISCOPE project. A representative terrace housing complex, of the corresponding building typology, was used as showcase for demonstrating the energy performance and the potential of energy savings, by applying energy conservation measures (ECMs). Three units of different location in the terrace building complex were selected to carry out comparative studies for their energy performance and classification. The effectiveness of the strategies and the techniques towards minimising the energy consumption are simulated with the use of iSBEMcy tool. This is the official used for the categorization of energy efficiency in buildings, according to the European Directive 2002/91/EC. The study utilises information from the database, of the thermal characteristics of the building envelope and of the electromechanical systems, which was developed by the European, IEE Episcope Project, for the terrace residential buildings. This research aims to fill in the current knowledge gap of the energy-related characteristics of the specific building typology. Building typologies can be a useful instrument to facilitate the energy performance assessment of the building stock.","PeriodicalId":31382,"journal":{"name":"Renewable Energy and Sustainable Development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68575066","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 Eco-Efficiency and Sustainable National Projects in Egypt 埃及的生态效率和可持续国家项目

Renewable Energy and Sustainable Development Pub Date : 2015-08-11 DOI: 10.21622/resd.2015.01.1.191

Khaled Gaber EL Sakty

引用次数: 0

Maximum Power Tracking by VSAS approach for Wind Turbine, Renewable Energy Sources 基于VSAS方法的可再生能源风电机组最大功率跟踪

Renewable Energy and Sustainable Development Pub Date : 2015-08-11 DOI: 10.21622/RESD.2015.01.1.023

N. Msirdi, Billel Meghni, A. Saadoun

引用次数: 2

Comparison of Sliding Mode Control and Fuzzy Logic control applied to Variable Speed Wind Energy Conversion Systems 滑模控制与模糊控制在变速风能转换系统中的应用比较

Renewable Energy and Sustainable Development Pub Date : 2015-08-11 DOI: 10.21622/RESD.2015.01.1.038

S. Zine, M. Benyounès, M. Bouzid

引用次数: 1