{"title":"A study of maximum power point tracking algorithms for wind energy system","authors":"M. A. Abdullah, A. Yatim, Chee Wei Tan","doi":"10.1109/CET.2011.6041484","DOIUrl":"https://doi.org/10.1109/CET.2011.6041484","url":null,"abstract":"This paper reviews and studies the state-of the-art of available maximum power point tracking (MPPT) algorithms. Due to the nature of the wind that is instantaneously changing, hence, there is only one optimal generator speed is desirable at one time that ensures the maximum energy is harvested from the available wind. Therefore, it is essential to include a controller that is able to track the maximum peak regardless of any wind speed. The available maximum power point tracking (MPPT) algorithms can be classified according to the control variable, namely with and without sensor, and also the technique used to locate the maximum peak. A comparison has been made on the performance of the selected MPPT algorithms on the basis of various speed responses and the ability to achieve the maximum energy yield. The tracking performance is performed by simulating wind energy system using MATLAB/Simulink simulation package. Besides that, a brief and critical discussion is made on the differences of available MPPT algorithms for wind energy system. Finally, a conclusion is drawn.","PeriodicalId":360345,"journal":{"name":"2011 IEEE Conference on Clean Energy and Technology (CET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124396185","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}
J. J. Jamian, M. Mustafa, H. Mokhlis, M.A. Bahamdin
{"title":"Conceptual data management and communication for smart distribution system","authors":"J. J. Jamian, M. Mustafa, H. Mokhlis, M.A. Bahamdin","doi":"10.1109/CET.2011.6041510","DOIUrl":"https://doi.org/10.1109/CET.2011.6041510","url":null,"abstract":"Load adjustment is a new concept in smart grid system that can be used to balance the frequency of the system by adjusting their power consumption. However, the system required to have effective data communication management. The introduction of Smart Home System (which consists of Smart Appliance (SA) and Smart Meter (SM)), Smart Regional Server (SRS) and Smart Server (SS) as well as the messaging sequence between these entities will be used to manage data communication in smart distribution system. The communications between these devices will be via Power Line Communication (PLC) and WiMAX as a medium to transfer the data to the SRS. Transport Control Protocol (TCP) will increase the reliability of transferring data. By using the propose communication and data management technique, the use of load-balancing control to recover the frequency in a smart distribution grid system will be achieved.","PeriodicalId":360345,"journal":{"name":"2011 IEEE Conference on Clean Energy and Technology (CET)","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132526058","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}
W. R. Daud, M. Ghasemi, Poh She Chong, J. Jahim, Swee Su Lim, M. Ismail
{"title":"SPEEK/PES composite membranes as an alternative for proton exchange membrane in microbial fuel cell (MFC)","authors":"W. R. Daud, M. Ghasemi, Poh She Chong, J. Jahim, Swee Su Lim, M. Ismail","doi":"10.1109/CET.2011.6041505","DOIUrl":"https://doi.org/10.1109/CET.2011.6041505","url":null,"abstract":"A solid polymer electrolyte (SPE) membranes were synthesized by incorporation of sulfonated poly(ether ether ketone) (SPEEK) in poly(ether sulfone) (PES) for electricity generation in microbial fuel cells (MFC). The composite membranes were prepared at 5% percent weight of SPEEK mixed with PES by phase inversion method and characterized by measuring proton conductivity, oxygen diffusion, water crossover and level of biofouling. Membrane electrode assemblies (MEA) were made by hot pressing the composite membranes with a Pt-loaded cathode on one side of membranes. The MEA, with effective area of 9 cm2, were tested using single chamber MFC. The blended SPEEK/PES membrane had low resistivity to water crossover and oxygen diffusion while high in conductivity compared to Nafion and PES membranes. The MFC using the composite membranes generated an average power density of 140 mW m−2 which was double that produced by MFC using Nafion membranes in every fed-batch cycle which lasted for 24 hours. The experimental results suggested that SPEEK/PES composite membrane could be a promising alternative to costly perfluorosulfonate membranes as proton exchange membrane in MFC system.","PeriodicalId":360345,"journal":{"name":"2011 IEEE Conference on Clean Energy and Technology (CET)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131984764","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}
{"title":"Studies of control strategies for Building Integrated Solar Energy System","authors":"H. A. Wahab, M. Duke, J. Carson, T. Anderson","doi":"10.1109/CET.2011.6041488","DOIUrl":"https://doi.org/10.1109/CET.2011.6041488","url":null,"abstract":"Research and development work on Building Integrated Solar Energy Systems (BISES) has become an area of growing interest, not only in New Zealand (NZ) but worldwide. This interest has led to a significant growth in the use of solar energy to provide heating and electricity generation. This paper presents the theoretical and experimental results of a novel building integrated solar hot water system developed using commercial long run roofing materials. This work shows that it is possible to achieve effective integration that maintains the aesthetics of the building and also provides useful thermal energy. The results of a 6.73m2 glazed domestic hot water systems are presented. The key design parameters of the Building Integrated Thermal (BIT) system were identified and implemented in a TRansient SYstem Simulation (TRNSYS) model. Validation results comparing the simulation in TRNSYS and real experimentation show that experimental and simulation responses are close to each other. The coupling of TRNSYS and Matlab/Simulink shows the possibility to use Matlab/Simulink for developing appropriate control strategies for BIT roofing systems. Preliminary Fuzzy Logic (FL) intelligent controller was implemented in a Fuzzy Integrated System (FIS) toolbox in a Matlab/Simulink model and linked into TRNSYS model. Further work is needed to identify and design advanced predictive control strategies for the Building Integrated Photovoltaic Thermal (BIPVT) solar system and determine how the performance can be optimized.","PeriodicalId":360345,"journal":{"name":"2011 IEEE Conference on Clean Energy and Technology (CET)","volume":"182 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134201378","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}
R. Jose, P. Archana, A. Le Viet, M. Reddy, M. Yusoff, S. Ramakrishna
{"title":"Electrospun metal oxides nanostructures for energy related devices","authors":"R. Jose, P. Archana, A. Le Viet, M. Reddy, M. Yusoff, S. Ramakrishna","doi":"10.1109/CET.2011.6041479","DOIUrl":"https://doi.org/10.1109/CET.2011.6041479","url":null,"abstract":"Metal oxide nanostructures of wide bandgap semiconductors with various morphologies, high degree of crystallinity and surface properties were fabricated by electrospinning a polymeric solution containing respective metal ions and their controlled heat treatment. The metal oxide nanostructures thus developed were tested for their application as charge separation and transport medium in solar cells, cathodes for low voltage (2 V) lithium ion batteries, and super capacitors. The solar cells thus fabricated features enhanced electron diffusion coefficient and energy storage devices featured stable electrochemical cycling thereby making electrospun metal oxide nanostructures a viable product for next generation energy industry.","PeriodicalId":360345,"journal":{"name":"2011 IEEE Conference on Clean Energy and Technology (CET)","volume":"85 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123340333","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}
{"title":"A study of Willingness To Pay by users of electricity available from biomass gasifer","authors":"D. Lahiri, Gokul , Acharjee","doi":"10.1109/CET.2011.6041471","DOIUrl":"https://doi.org/10.1109/CET.2011.6041471","url":null,"abstract":"Electricity form grid to rural consumers has not been available users. Throughout the day electricity outages have been very common to users. Also due to dispersal of villages the state electricity boards (SEBSs) have not been able to collect their dues in times. Also rampant power theft has also been responsible for poor quality of power mainly due to theft and outages. Thus the SEBs had preferred to keep their infrastructures as it is pays little attention for development. Recently government of India has engaged “last smile service providers” in villages through franchisee system for collection of revenue and for providing electricity throughout the day. But it has been on experimental stage thus the only alternative to villagers has been to take the help of standalone devices. Among stand alone devices biomass gasification has been a major source of electricity to villagers. But the per unit cost of production of electricity has been higher than grid electricity in view of this it would be relevant to know the whether the villagers would be able to pay higher price for electricity. To arrive at this the study had used Willingness To Pay method (WTP). The biomass based power generation system has been functioning for over 8 years (1999–2007) in Baharbari village of Bihar India consists of a population of 2500 people, Electricity from gasifier has been used for lighting household, pumping for irrigation, connected with few microenterprise and occasionally in some marriage party.","PeriodicalId":360345,"journal":{"name":"2011 IEEE Conference on Clean Energy and Technology (CET)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123496862","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}
{"title":"Potential use of solar photovoltaic in Peninsular Malaysia","authors":"A. Johari, S. S. Hafshar, M. Ramli, H. Hashim","doi":"10.1109/CET.2011.6041446","DOIUrl":"https://doi.org/10.1109/CET.2011.6041446","url":null,"abstract":"Energy is important to all aspects of development to support population growth, urbanization, industrialization as well as tourism industry. The energy consumption is also increasing and several alternative green energy sources are seriously taken into consideration to fulfill Malaysia's energy demand. The Malaysian government has looked into the renewable energy (RE) sources such as solar energy to be one of the alternatives to face problems related with the increase in energy demand. However, the heavily subsidized of non renewable sources in the country has made the RE sources an uneconomical option. The aim of this paper is to briefly review about incentives and the RE Act adopted by the Malaysian government to ensure long term reliability and security of energy supply. The feed-in-tariff system, solar radiation intensity in Peninsular Malaysia and the role of renewable energy sources in the Five-Fuel Diversification Strategy energy mix are also highlighted in this paper.","PeriodicalId":360345,"journal":{"name":"2011 IEEE Conference on Clean Energy and Technology (CET)","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124772700","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}
{"title":"Novel fundamental-frequency-modulated modified H-bridge single-phase seven-level inverter for stand-alone photovoltaic system","authors":"K. Chaniago, N. Rahim, J. Selvaraj","doi":"10.1109/CET.2011.6041468","DOIUrl":"https://doi.org/10.1109/CET.2011.6041468","url":null,"abstract":"This paper describes a strategy to optimize the switching angle of a novel modified H-bridge single-phase seven-level inverter for stand-alone photovoltaic (PV) system. The inverter comprises a conventional H-bridge inverter and two bidirectional switches. It can generate seven-level output voltage level, namely +Vdc, +2/3Vdc, +1/3Vdc, 0, −1/3Vdc, −2/3Vdc and -Vdc. Optimized Harmonic Elimination Stepped Waveform (OHESW) technique was employed to improve the output waveform quality. Newton-Raphson method is engaged to solve the transcendental equations from OHESW technique which produces all possible solutions with any random initial guess. Among which sets, the one producing the least output-voltage THD was chosen. Computation resulting from the optimized switching angle was simulated. A small-scale laboratory prototype was built and tested. Its results indicated the proposed method's effectiveness and the application feasibility of the fundamental-frequency switching.","PeriodicalId":360345,"journal":{"name":"2011 IEEE Conference on Clean Energy and Technology (CET)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121893251","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}
M. Murthy, Y. Patil, D. Ambekar, T. Patil, G. Sonawane, R. Chaudhari, G. Patil, S. Sharma, B. Polem, S. Kolte, N. Doji
{"title":"Concrete slab solar water heating system","authors":"M. Murthy, Y. Patil, D. Ambekar, T. Patil, G. Sonawane, R. Chaudhari, G. Patil, S. Sharma, B. Polem, S. Kolte, N. Doji","doi":"10.1109/CET.2011.6041486","DOIUrl":"https://doi.org/10.1109/CET.2011.6041486","url":null,"abstract":"Renewable energy is the energy which comes from natural resources such as sun light, wind, rain, tides, and geothermal heat which are renewable(naturally replenished) Main types of renewable energies are wind power, solar energy, biomass, bio-fuel and geothermal energy. Solar energy is the energy derived from the sun through the form of solar radiation. Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute solar energy. Active solar techniques include the use of photovoltaic panels and solar thermal collectors to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air","PeriodicalId":360345,"journal":{"name":"2011 IEEE Conference on Clean Energy and Technology (CET)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125274200","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}
{"title":"Combustion studies of refused-derived fuel (RDF) in fluidized bed (FB) system a method","authors":"A. Abdul, R. Rozainee, J. Anwar, R.S Wan Alwi","doi":"10.1109/CET.2011.6041450","DOIUrl":"https://doi.org/10.1109/CET.2011.6041450","url":null,"abstract":"Among most conventional incineration systems, the fluidized bed combustor (FBC) had been described as one of the most advantageous by providing simple operation with ability to accommodate low quality fuel as biomass, sludge and MSW with high moisture; reduced auxiliary fuel use; reduced operating and maintenance costs. This could only be achieved if optimal operating parameters are determined. This paper presents the methods and part of the findings of an on-going research aimed at optimizing the operating parameters that gives lowest emissions in the combustion of a fluff refused-derived fuel (f-RDF) in pilot scale fluidized bed combustor. The method adopt includes - cold fluidization studies in rectangular model column to determine the fluidizing velocity of the inert bed material (silica sand), and the effects of increasing fluidizing numbers on the mixing behavior of bed and fuel. This is closely followed by combustion study in the pilot scale FBC.","PeriodicalId":360345,"journal":{"name":"2011 IEEE Conference on Clean Energy and Technology (CET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125880547","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}