2013 International Renewable and Sustainable Energy Conference (IRSEC)最新文献

PMSM sensorless control using back-EMF based position and speed estimation method 永磁同步电机无传感器控制采用基于反电动势的位置和速度估计方法

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529696

Youness Aite Driss, D. Yousfi

引用次数: 6

Design and construction of a synchronous wind turbine 同步风力发电机的设计与制造

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529689

M. Lahda, A. Mouradi, A. El Hibaoui, A. Mimet

引用次数: 0

The effect of wind-based generation inclusion on economic load dispatch problem 风电并网对经济负荷调度问题的影响

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529669

F. Benhamida, Y. Salhi, S. Souag, A. Bendaoud, H. Sayah

引用次数: 0

A closed pneumatic-based solar tracking system 一个封闭的气动太阳能跟踪系统

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529725

M. Jaafari, I. Hadachi, M. Elwarari, S. Boualila, Y. Salih-Alj

引用次数: 0

Single step production of biodiesel from used cooking oil 用废食用油一步法生产生物柴油

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529712

K. Surya Unni, Z. Yaakob, M. Pudukudy, M. Mohammed, B. Narayanan

引用次数: 5

Solar cooling: Experiences and lessons learned with two different systems 太阳能冷却:两种不同系统的经验教训

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529735

A. Ali

{"title":"Solar cooling: Experiences and lessons learned with two different systems","authors":"A. Ali","doi":"10.1109/IRSEC.2013.6529735","DOIUrl":"https://doi.org/10.1109/IRSEC.2013.6529735","url":null,"abstract":"The aim of this study is to report the performance as well as the gained experiences and lessons learned with two different solar cooling systems. The first cooling system is an integrated cooling plant having both free cooling system and solar powered single-effect lithium bromide-water absorption chiller in operation since August 2002. A floor space of 270 m2 is air-conditioned by the plant. The plant includes 35.17 kW cooling absorption chiller, vacuum tube collectors' aperture area of 108m2, hot water storage capacity of 6.8 m3, cold water storage capacity of 1.5m3 and a 134 kW cooling tower. For this solar driven cooling plant, the performance data show that free cooling in some cooling months can be up to 70% while it is about 25% during the 5 years period of the plant operation. Moreover, for sunny clear sky days with equal incident solar radiation, the daily solar heat fraction used to drive the chiller ranged from 0.33 to 0.41; collectors' field average efficiency ranged from 0.352 to 0.492 and chiller COP varies from 0.37 to 0.81, respectively. The monthly average value of solar heat fraction varies from 31.1% up to 100% with five years average value of about 60%. The monthly average collectors' field efficiency value varies from 34.1% up 41.8% and the five-year average value amounts about 28.3%. The second solar driven cooling system is a steam jet ejector chiller (SJEC) driven by parabolic trough collector. The chiller has a capacity of one kW cooling. The experiments show that the particular characteristics of a SJEC with the strong influence of the condenser cooling water temperature and evaporator temperature on the system coefficient of performance. The coefficient of performance reaches high values in part load and at good re-cooling conditions, so that the mean efficiency is clearly higher than the nominal efficiency of the system. A first calculation of profitability leads to specific cold cost of 0.62 €/kWh in Germany and 0.15 €/kWh in Egypt.","PeriodicalId":130577,"journal":{"name":"2013 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"470 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122181807","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

RafriBAT: A project to introduce energy efficiency in buildings in Marrakech area by means of passive and low exergy air-conditioning systems RafriBAT:该项目旨在通过被动式和低能耗空调系统在马拉喀什地区的建筑中引入能源效率

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529688

B. Benhamou, H. Hamdi, A. Brakez, A. Bennouna

{"title":"RafriBAT: A project to introduce energy efficiency in buildings in Marrakech area by means of passive and low exergy air-conditioning systems","authors":"B. Benhamou, H. Hamdi, A. Brakez, A. Bennouna","doi":"10.1109/IRSEC.2013.6529688","DOIUrl":"https://doi.org/10.1109/IRSEC.2013.6529688","url":null,"abstract":"RafriBAT is a project funded by the Hassan II Academy of Sciences and Technology for the period 2012-2015. It aims to study the use of passive and hybrid systems in buildings for natural air refreshment and heating. The project also focuses on the building envelope in order to point out the synergy between an adapted envelope and the use of the passive/hybrid systems for cooling/heating. Specifically, some existing buildings with passive and hybrid systems for cooling/heating will be monitored and modeled. In the second part of the project, the passive and hybrid systems for cooling/heating will be tested individually in Outdoor Test-Cells. The dynamic response of these systems will be also calculated by means of TRNSYS software. The comparison of the monitoring results and the dynamic modeling will produce an efficient and well-validated simulation tool. This tool may be used for the design of energetically efficient buildings in an arid climate such as that of Marrakech. The final target, of this project is to accompany the elaboration of the building energy efficiency code in the frame of the national energy efficiency strategy.","PeriodicalId":130577,"journal":{"name":"2013 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128997874","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

A MPPT vector control of electric network connected Wind Energy Conversion System employing PM Synchronous Generator 采用永磁同步发电机的并网风能转换系统的MPPT矢量控制

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529721

Y. Errami, M. Maaroufi, M. Ouassaid

引用次数: 28

Effect of structural variations in CIGS based solar cells from numerical analysis 基于CIGS的太阳能电池结构变化的数值分析

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529686

E. Ihalane, L. Atourki, L. Boulkaddat, E. E. El Hamri, H. Kirou, L. Alahyane, A. Elfanaoui, A. Ihlal, K. Bouabid, X. Portier

引用次数: 2

Low Energy Direct Contact Membrane Distillation: Towards optimal flow configuration 低能量直接接触膜蒸馏:走向最佳流动配置

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529673

M. Awad, I. Janajreh, H. Fath

{"title":"Low Energy Direct Contact Membrane Distillation: Towards optimal flow configuration","authors":"M. Awad, I. Janajreh, H. Fath","doi":"10.1109/IRSEC.2013.6529673","DOIUrl":"https://doi.org/10.1109/IRSEC.2013.6529673","url":null,"abstract":"Computational Fluid Dynamics (CFD) is used to study the steady state performance of Low Energy Direct Contact Membrane Distillation (DCMD). Two-dimensional numerical model with parallel and counter flow is developed. A case of parabolic flow with characteristic velocity is considered entering the domain from the feed and permeate sides at 40°C and 25°C respectively. The model parameters were measured in the consideration of two dimensional, steady state, and incompressible fluid flow using the complete Navier-Stokes coupled with the energy equation for non-isothermal flow. The feed stream is saline water (4% salinity) which is a mixture of two miscible species, whereas the permeate stream comprises of pure water. Across the membrane the temperature difference creates pressure gradient which is responsible for the transport of energy and vapor mass through the pours of the permeable membrane. The membrane's coefficients of DCMD membrane is evaluated along with the mass flux, heat flux, and temperature polarization factor and results showed a good agreement with the published theoretical work. In view of these plausible results, parametrical study was conducted accounting for parallel and counter flow, different in flow rate and inlet temperature in attempting to achieve optimal operation. In the results section, the mass flux, heat flux, temperature polarization were calculated and discussed based on the simulation.","PeriodicalId":130577,"journal":{"name":"2013 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130225396","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