Proceedings of the International Conference on Energy and Sustainable Development: Issues and Strategies (ESD 2010)最新文献

{"title":"Integrated renewable energy solutions for seafood processing stations","authors":"H. Ronde, A. Ranne, E. Pursiheimo","doi":"10.1109/ESD.2010.5598777","DOIUrl":"https://doi.org/10.1109/ESD.2010.5598777","url":null,"abstract":"The ENERFISH project aims to demonstrate a new poly-generation application with renewable energy sources for the fishery industry. The distributed energy system utilizes cleaning waste of a fish processing plant to produce biodiesel. The biodiesel is used to produce the locally needed cooling/freezing and heating energy. In addition, a power surplus is generated for the electricity network or local industrial use. The research contribution focuses on optimisation, simulation, validation and planning of piloted concepts. A energy integration auditing and optimisation tools are being developed to carry out feasibility studies for the fishery industry. The advanced CO2 based freezing/cooling system requires optimization and control system planning of special high-pressure equipments. The final biodiesel will be tested in appropriate engines. With a view to marketing possibilities the demonstration will take place in Vietnam. In the demonstration case, the main product of the fish processing plant is catfish filet (about 40 t/d). The fat content of 22 per cent in the fish cleaning waste results in a production of biodiesel of about 13 t/d. A part of the biodiesel is used to produce electricity for the locally needed cooling/freezing (0.3 MW) and heating (1,3 MW) energy. In addition, a power surplus (0,8 MW) is generated for the local industrial use. Fish farming and processing plants in Vietnam produce frozen fish fillet with capacity from some tonnes per day to dozens tonnes/day. One third of fresh fish is yielded as fillet and the rest of fish is treated as fish cleaning wastes. There are some alternatives for utilisation of fish cleaning wastes, one of them is biodiesel and energy production at the own factory. The energy demand at the fish processing factory is dominated by cooling and freezing facilities. 80 % of electricity consumed at the factory is supplied for cooling/freezing compressors, and the cold energy of low temperatures is needed in freezing and cold storage facilities of fillet. Cooling energy of about zero degrees is needed for space cooling of production halls. The specific electricity consumption is about 400 kWh per tonne fresh fish, or 1400 kWh per tonne fish fillet. The electricity load is typically very steady over a day and a year in the Vietnamese conditions. From the energy viewpoint the fish processing plant is energy self-sufficient, when the fish waste oil is processed in a biodiesel processor and further converted to electricity. In addition to this, a part of biodiesel can be sold to the fuel market. The fish processing factory producing fish fillet of 40 ton/day consumes electricity average at a power of 2 MW. 11 ton/day biodiesel is needed for that power production and a surplus biodiesel of 2 ton/day is available for fuel market. At the same time, diesel engine plant generates heat energy at a capacity of 2,6 MW, which is also available. The other end in possibilities of poly-generation is to generate all biodiese","PeriodicalId":272782,"journal":{"name":"Proceedings of the International Conference on Energy and Sustainable Development: Issues and Strategies (ESD 2010)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114965812","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":"Roadmapping the PEA Smart Grids","authors":"T. Meenual","doi":"10.1109/ESD.2010.5598878","DOIUrl":"https://doi.org/10.1109/ESD.2010.5598878","url":null,"abstract":"Provincial Electricity Authority (PEA) has engaged in the development of Smart Grids. Smart Grids is the future of electric power system and electricity supply businesses. A development process of Smart Grids is continuous and collaborative and involves several stakeholders. A clear picture of Smart Grids enables all stakeholders to accelerate the development process. Roadmapping is a way of imaging and expecting a series of future pictures at different points of time. This paper shows the application of roadmapping in visualizing the PEA Smart Grids.","PeriodicalId":272782,"journal":{"name":"Proceedings of the International Conference on Energy and Sustainable Development: Issues and Strategies (ESD 2010)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123622958","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":"Loss minimization and capacity saving in residential networks - an AIT case study","authors":"S. Sreedharan, W. Ongsakul, N. Mithulananthan, K. Buayai, N. Mithulananthan","doi":"10.1109/ESD.2010.5598874","DOIUrl":"https://doi.org/10.1109/ESD.2010.5598874","url":null,"abstract":"This paper opens up a novel technique of end-user based energy saving and loss reduction technique evolved from a energy audit study conducted in the residential dormitories of Asian Institute of Technology (AIT) Bangkok, Thailand. An automatically switched capacitor was connected to some of the residential socket plugs of each dormitory and analyzed the capacity saving and loss minimization. This study focused on the healthy conclusion that a substation and a DG of 500 kVA could able to be eliminated in terms of the capacity investment and there was also a marginal saving in the institute monthly electricity bill payment to the Provisional Electricity Authority of Thailand due to the reduction in network losses.","PeriodicalId":272782,"journal":{"name":"Proceedings of the International Conference on Energy and Sustainable Development: Issues and Strategies (ESD 2010)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128745454","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":"Renewable energy mapping at Riau Province: Promoting Energy Diversification for sustainable development (a case study)","authors":"A. Prayitno, A. Awaluddin, A. Anhar","doi":"10.1109/ESD.2010.5598780","DOIUrl":"https://doi.org/10.1109/ESD.2010.5598780","url":null,"abstract":"Mapping of renewable energy sources has been done. It inspires to figuring out an escalation of energy demand at rural and remote area by promoting Energy Diversification Programs.(EDP). Biomass, solar, wind and hydro are four renewable energy resources enable people to provide energy by their own. The mapping describes three zones based on the dominant of the resources. Upstream of tributary zone at which the hydropower may supply energy for running micro hydro power plant. Agriculture and plantation zone produces plenty of biomass for steam turbine power plant. Estuary and coast line zone is the open area where solar radiation and wind speed are potentially able to be harnessed for producing electricity. Promoting energy diversification based on mapping data followed by implementing appropriate technology may give much benefit for sustainable development. A small scale hybrid model power plant is introduced.","PeriodicalId":272782,"journal":{"name":"Proceedings of the International Conference on Energy and Sustainable Development: Issues and Strategies (ESD 2010)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126577119","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":"Investigation on photovoltaic/hydrogen hybrid system for an isolated electrical grid","authors":"C. Cristofari, J. Canaletti, C. Darras, M. Muselli, P. Poggi, J. Panighi","doi":"10.1109/ESD.2010.5598871","DOIUrl":"https://doi.org/10.1109/ESD.2010.5598871","url":null,"abstract":"The object of the study is to reduce the daily load peaks on an insular electric network (corsica island, france) using with help to renewable energy systems. the methodology is based on an energy balance between a pv array, an electrolyzer and fuel cells (50 kw) supplying a seasonal load profile built from electrical network load peaks. this load is supplied firstly by the pv array and the fuel cell produces complementary power when the pv system is deficient. an electrolyzer, using unconsumed pv energy produces hydrogen for the fuel cell. in the present work, at the beginning of the operation, the hydrogen stock is sufficient to satisfy a given number of days corresponding to the system autonomy (loss of load probability = 0). solar and ambient temperature data were measured at our laboratory weather station in ajaccio (41°55′ n, 8°48′ e, 70 m altitude). hourly data are available for the years 1998 to 2004. the originality of this approach was to determine a whole methodology allowing to obtain quickly sizing curves for a pv/h2 hybrid system supplying a given load (remote sites and/or grid connection).","PeriodicalId":272782,"journal":{"name":"Proceedings of the International Conference on Energy and Sustainable Development: Issues and Strategies (ESD 2010)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133705435","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":"Drying kinetic of peppercorns in a rectangular fluidized-bed with wavy surfaces","authors":"C. Thianpong, A. Boonloi, P. Promvonge","doi":"10.1109/ESD.2010.5598861","DOIUrl":"https://doi.org/10.1109/ESD.2010.5598861","url":null,"abstract":"The paper presents the comparative study of drying peppercorns in a rectangular fluidized-bed and a rectangular fluidized-bed with wavy surfaces. This experimental work has been carried out in two different drying bed configurations: rectangular bed and rectangular bed with wavy surface (called “wavy surface bed”). The wavy surface bed is used to produce a stronger turbulence flow inside. For each run of both beds, inlet hot air at 80°C is used for drying peppercorns with initial moisture content at about 82.5% w.b. The inlet air velocity is adjusted to be 1.0Umf, 1.1Umf and 1.3Umf (Umf= minimum fluidization velocity of peppercorns) as desired. Drying time and weight of peppercorns are measured in 5 minute intervals for 120 minutes for each run. The experimental results show that in the rectangular bed, the peppercorns show low oscillating and it becomes dense bed. This causes low heat transfer rate between peppercorns and hot air leading to slower mass transfer of moisture in the peppercorns. In the wavy surface bed, the peppercorns has high fluctuations due to unsymmetrical flow in the bed creating a sustainable oscillating flow with stronger turbulence of hot air and it causes dilute bed, resulting in higher heat and mass transfer in peppercorns. Closer examination reveals that for a similar operating condition, the rectangular wavy surface bed performs better than the rectangular bed.","PeriodicalId":272782,"journal":{"name":"Proceedings of the International Conference on Energy and Sustainable Development: Issues and Strategies (ESD 2010)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130795509","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":"Transesterification of waste chicken fats for synthesizing biodiesel by CaO as heterogeneous base catalyst","authors":"A. Awaluddin, S. Saryono, A. Prayitno, T. Ariful Amri","doi":"10.1109/ESD.2010.5598784","DOIUrl":"https://doi.org/10.1109/ESD.2010.5598784","url":null,"abstract":"High consumption of chicken in Indonesia leads to a considerable amount of chicken skin as a waste. The utilization of this chicken skins as possible biodiesel feedstock was therefore investigated. The transestrification between this chicken fats and methanol was conducted using calcium oxide as solid catalyst. The variables affecting the yield of biodiesel during transesterification, such molar ratio of methanol to oil, reaction time, reaction temperature, catalyst concentration ware investigated. With 1 % catalyst, when the transesterification was carried out at molar ratio of methanol to oil of 6∶1, reaction time of 1.5 hours, reaction temperature of 50 °C, yield of 75.4% was achieved. The fuels properties, namely, kinematic viscosity, specific gravity, flash point, cetane number, water content and iodine number are found within the limit of Indonesian National standard for Biodiesel.","PeriodicalId":272782,"journal":{"name":"Proceedings of the International Conference on Energy and Sustainable Development: Issues and Strategies (ESD 2010)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129234624","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":"Renewable energy from the sea - organic Rankine Cycle using ocean thermal energy conversion","authors":"S.K. Wang, T. Hung","doi":"10.1109/ESD.2010.5598775","DOIUrl":"https://doi.org/10.1109/ESD.2010.5598775","url":null,"abstract":"Rankine cycles using refrigerant- and benzene-series fluids as working fluids in converting low-grade energy from renewable energy resources such as solar energy and ocean thermal energy were investigated in this study. The main purpose is to verify the feasibility of utilizing ocean energy (i.e., ocean thermal energy conversion, OTEC) which can also be combined with solar energy in an organic Rankine Cycle (ORC) to generate electricity. Parameters under investigation were turbine inlet temperature, turbine inlet pressure, condenser exit temperature, turbine exit quality, overall irrversibility, and system efficiency. Results indicate that wet fluids with very steep saturated vapor curves in T-s diagram have a better overall performance in energy conversion efficiencies than that of dry fluids. It can also be shown that all the working fluids have a similar behavior of the efficiency-condenser exit temperature relationship. Furthermore, an appropriate combination of solar energy and an ORC system with a higher turbine inlet temperature and a lower condenser temperature (as operated deeply under sea level) would provide an economically feasible and environment-friendly renewable energy conversion system.","PeriodicalId":272782,"journal":{"name":"Proceedings of the International Conference on Energy and Sustainable Development: Issues and Strategies (ESD 2010)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122164051","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":"Life Cycle Cost of lighting system in various groups of end user in Thailand","authors":"W. Sriamonkitkul, Nipon Tongsuk, Rawin Jareansuk, B. Hongpeechar, S. Saengsuwan, P. Bhasaputra, W. Pattaraprakorn","doi":"10.1109/ESD.2010.5598860","DOIUrl":"https://doi.org/10.1109/ESD.2010.5598860","url":null,"abstract":"This paper studies the Life Cycle Cost (LCC) of various lighting systems that are T-8 fluorescent lamps with standard ballast, T-8 fluorescent lamps with low-loss ballast, T-8 fluorescent lamps with electronic ballast and T-5 fluorescent lamps with electronic ballast. The LCC of residential customers, small general service customers, medium general service customers and large general service customers are evaluated by considering initial cost, energy cost, maintenance cost and savage cost for the assessment in Thailand. The analytical results show that T-5 fluorescent lamps with electronic ballast can reduce the LCC of fluorescent lamps up to 3,177, 3,948, 3,619 and 3,382 for residential customers, small general service customers, medium general service customers and large general service customers, respectively. In addition, the LCC of T-5 fluorescent lamps with electronic ballast are less than the LCC of T-8 fluorescent lamps with standard ballast, the LCC of T-8 fluorescent lamps with low-loss ballast, and the LCC of T-8 fluorescent lamps with electronic ballast by 20%, 15% and 9% for small general service customer. According to the information from department of demand side management, EGAT (Electricity Generation Authority of Thailand), 200 million of T-5 fluorescent lamps with electronic ballast can decrease the peak demand up to 2,000 MW and 5 million tons of CO2 emission. Finally, the sensitivity analysis shows that the most influent factors for LCC is the electricity tariff rate, following by the cost of light bulbs and accessories, and the reverse life time of equipment respectively.","PeriodicalId":272782,"journal":{"name":"Proceedings of the International Conference on Energy and Sustainable Development: Issues and Strategies (ESD 2010)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122164389","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":"Thermal enhancement in a solar air heater channel using rectangular winglet vortex generators","authors":"N. Depaiwa, T. Chompookham, P. Promvonge","doi":"10.1109/ESD.2010.5598864","DOIUrl":"https://doi.org/10.1109/ESD.2010.5598864","url":null,"abstract":"The forced convection heat transfer and friction loss behaviors for turbulent airflow through a constant heat flux channel solar air heater with rectangular winglet vortex generator (WVG) are experimentally investigated in this work. The rectangular winglet pairs are considered with two different arrangements by pointing upstream (PU) and pointing downstream (PD) of the flow. Ten pairs of the WVGs with various attack angles (α) of 60°, 45° and 30° are mounted on the test duct entrance wall to create longitudinal vortex flows over the tested channel. Measurements are carried out for the rectangular channel air heater of aspect ratio, AR = 10 and height, H = 30 mm with the WVG height, b/H = 0.4 and a transverse pitch ratio, P/H = 1. The flow rate is in terms of Reynolds numbers based on the inlet hydraulic diameter of the channel ranging from 5000 to 23,000. The experimental results show that the solar air heater channel with rectangular WVG provides significantly higher heat transfer rate and friction loss than the smooth wall channel. The use of larger attack angle value leads to higher heat transfer rate and friction loss than that of lower one. The PD-WVGs performs higher heat transfer rate and friction loss than the PU one for similar operating conditions. In comparison, the largest attack angle (α = 60°) of the PD-WVGs yields the highest increase in Nusselt number and friction factor while the lowest attack angle (α = 30°) of the PU-WVGs shows the best thermal performance.","PeriodicalId":272782,"journal":{"name":"Proceedings of the International Conference on Energy and Sustainable Development: Issues and Strategies (ESD 2010)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132389635","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}