2009 3rd International Conference on Energy and Environment (ICEE)最新文献_第3页

A techno-economic analysis of biogas plant from palm oil waste 棕榈油废弃物沼气厂技术经济分析

2009 3rd International Conference on Energy and Environment (ICEE) Pub Date : 2009-12-01 DOI: 10.1109/ICEENVIRON.2009.5398668

S. Begum, Devaki A/P Murgayah, Siti Fazlili Bt Abdullah

{"title":"A techno-economic analysis of biogas plant from palm oil waste","authors":"S. Begum, Devaki A/P Murgayah, Siti Fazlili Bt Abdullah","doi":"10.1109/ICEENVIRON.2009.5398668","DOIUrl":"https://doi.org/10.1109/ICEENVIRON.2009.5398668","url":null,"abstract":"Renewable energy is one of the vital sources to meet partially the global energy demand of developed as well as developing countries. Biogas plant can be one of the major sources of renewable energy in Malaysia as huge amount of palm oil waste is available. Biogas plant can be of different types of which fixed dome and floating cover are in use in many countries for many years. The bag design is becoming popular in many countries. The fixed dome design is used in various palm oil mills. The generated gas can be used for cooking, lighting, power generation and the sludge can be used as fertilizer for land. Palm oil waste is easily available and inexpensive, the major share of costs are incurred at the initial stage. The operating and the maintenance costs are quite low. In the present work an attempt has been taken to study the technological parameters for commonly used fixed dome biogas plant for two different sizes. The costs related to the fabrication of plant are collected from various sources and the other items were estimated on the basis of available information. Net present worth, internal rate of return, benefit cost ratio and payback period were calculated. On the basis of calculated values it was found that the biogas plant is economically viable and viability increased with the increase of plant size. The technological suitability in the context of prevailing situation, economic viability and future scope of biogas plants has been evaluated. The findings of this study would give some directions and guidelines for future planning and implementation of biogas plants in Malaysia.","PeriodicalId":211736,"journal":{"name":"2009 3rd International Conference on Energy and Environment (ICEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127143162","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 combined probabilistic and deterministic method for an improved capacity outage probability table synthesis using monte carlo methods 一种基于蒙特卡罗方法的改进的容量中断概率表综合的概率与确定性相结合的方法

2009 3rd International Conference on Energy and Environment (ICEE) Pub Date : 2009-12-01 DOI: 10.1109/ICEENVIRON.2009.5398656

A. Hashim, S. Chan, M. T. Au

{"title":"A combined probabilistic and deterministic method for an improved capacity outage probability table synthesis using monte carlo methods","authors":"A. Hashim, S. Chan, M. T. Au","doi":"10.1109/ICEENVIRON.2009.5398656","DOIUrl":"https://doi.org/10.1109/ICEENVIRON.2009.5398656","url":null,"abstract":"An electrical power system is typically operated at least cost given some technical and reliability constraints. To that end, many utilities use deterministic methods such as n−1 criterion in order to ensure reliability. This method though being used worldwide and for a really long time can be expensive as contingencies occur rarely. In order to evaluate power systems, it must be noted that contingencies are stochastic in nature. Since reliability of supply and economic cost must be balanced, probabilistic analysis seems to be one of the tools which can be applied. In the case of generator dispatch, the most recognized probability tool is the Capacity Outage Probability Table (COPT). However, the synthesis of the COPT using the Recursive Method as proposed by Billinton and Allan can be cumbersome. This paper presents an integration of probabilistic and deterministic methods for outage analysis. It shows an alternative method to develop the COPT using a pseudo-deterministic method combined with a Monte Carlo method. Thus, making the process of developing a COPT simpler and can reduce computation time.","PeriodicalId":211736,"journal":{"name":"2009 3rd International Conference on Energy and Environment (ICEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126010419","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: 6

Performance evaluation of AC-DC filters for chandrapur-padghe bipolar HVDC link chandrapr -pad双极HVDC交直流滤波器性能评价

2009 3rd International Conference on Energy and Environment (ICEE) Pub Date : 2009-12-01 DOI: 10.1109/ICEENVIRON.2009.5398627

M. A. Kulkarni, W. Gandhare, R. Parulkar

引用次数: 3

Numerical investigation of a single jet impingement on a flat surface using a cubic k-ε non-linear eddy viscosity model, to predict the effect of cooling on gas turbine blades 利用立方k-ε非线性涡粘模型对平面单射流冲击进行数值研究，以预测冷却对燃气轮机叶片的影响

2009 3rd International Conference on Energy and Environment (ICEE) Pub Date : 2009-12-01 DOI: 10.1109/ICEENVIRON.2009.5398641

N. Mostafa

{"title":"Numerical investigation of a single jet impingement on a flat surface using a cubic k-ε non-linear eddy viscosity model, to predict the effect of cooling on gas turbine blades","authors":"N. Mostafa","doi":"10.1109/ICEENVIRON.2009.5398641","DOIUrl":"https://doi.org/10.1109/ICEENVIRON.2009.5398641","url":null,"abstract":"The ability to accurately predict the effect of cooling on gas turbine blades is essential in designing the blades that will operate at extremely high temperature. The standard k-ε linear eddy viscosity model is known to be inaccurate in predicting highly complex flows. Thus, a relatively new cubic k-ε non-linear eddy viscosity model was tested to ascertain whether it has improved the performance of eddy viscosity models. A single jet impingement on a flat plate with surface-to-nozzle distance of H/D = 6 was investigated numerically using a cubic k-ε non-linear eddy viscosity model of Craft et. al. [1] and high-Re k-ε linear eddy viscosity model of Jones & Launder [2]. Both use standard wall-function to model the near-wall flow. Dynamic field profiles taken at certain distances away from the impingement point were compared with experimental results of Cooper et al. [3]. The heat transfer field results were compared with the experimental data of Baughn et al. [4]. The dynamic field results show that the cubic non-linear model gives a much better prediction than the linear model. The heat transfer results showed that the linear model over-predicted the heat transfer rate at the stagnation point whilst the non-linear model gave under-prediction due to a lower prediction of the turbulent kinetic energy at that region.","PeriodicalId":211736,"journal":{"name":"2009 3rd International Conference on Energy and Environment (ICEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132710204","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

Effect of washing and feedstock size of oil palm empty fruit bunches in acid hydrolysis studies 洗涤和原料粒度对油棕空果串酸水解研究的影响

2009 3rd International Conference on Energy and Environment (ICEE) Pub Date : 2009-12-01 DOI: 10.1109/ICEENVIRON.2009.5398670

C. Sia, K. O. Lim, T. Teng

引用次数: 3

Air motor for improved engine brake efficiency Design and preliminary experiments 提高发动机制动效率的气动马达设计及初步试验

2009 3rd International Conference on Energy and Environment (ICEE) Pub Date : 2009-12-01 DOI: 10.1109/ICEENVIRON.2009.5398658

R. Malpress, D. Buttsworth

{"title":"Air motor for improved engine brake efficiency Design and preliminary experiments","authors":"R. Malpress, D. Buttsworth","doi":"10.1109/ICEENVIRON.2009.5398658","DOIUrl":"https://doi.org/10.1109/ICEENVIRON.2009.5398658","url":null,"abstract":"The brake efficiency of a throttled internal combustion engine is reduced at low load operation because of the engine work required to drop the intake manifold pressure. These throttling losses are experienced by all throttled engines operating at less than wide open throttle (WOT). By replacing the throttle plate with a suitable air motor, work can be recovered in an expansion process that reduces the induced air pressure to the same intake manifold pressure as the throttled engine. To maximize the benefits from coupling the air motor to the engine cycle, the air should be returned to a thermal state identical to that of the throttled case at some point prior to combustion. This might be achieved either: (i) prior to cylinder compression via regenerative heat transfer to the inducted air; or (ii) through cylinder compression at an increased compression ratio. The work generated by the Induction Air Motor (IAM) can be directly applied to the engine output thereby increasing the brake efficiency for the same indicated work. This paper reports on the performance of an IAM designed to reduce intake pressure of an engine for low load operation. Increased brake efficiency will be achieved. The IAM design specifications are explored using a numerical model including isentropic efficiency, friction and service life considerations. A prototype has been constructed and was bench tested at flows and pressures comparable to a throttled engine. These tests indicated that the modelled friction was lower than the friction measured during the experiments. From the experiments performed with the prototype, the net performance of an IAM will give efficiency improvements in excess of 5% for an equivalent throttled engine operating at loads in the range up to 10 % of its WOT power.","PeriodicalId":211736,"journal":{"name":"2009 3rd International Conference on Energy and Environment (ICEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128841080","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

Numerical analysis of wood combustion in an updraft gasifier 上升气流气化炉中木材燃烧的数值分析

2009 3rd International Conference on Energy and Environment (ICEE) Pub Date : 2009-12-01 DOI: 10.1109/ICEENVIRON.2009.5398676

E. M. Tokit, A. Aziz, N. Ghazali

引用次数: 0

Theoretical and experimental investigation of SI engine performance and exhaust emissions using ethanol-gasoline blended fuels 乙醇-汽油混合燃料内燃机性能及废气排放的理论与实验研究

2009 3rd International Conference on Energy and Environment (ICEE) Pub Date : 2009-12-01 DOI: 10.1109/ICEENVIRON.2009.5398648

T. Yusaf, D. Buttsworth, G. Najafi

{"title":"Theoretical and experimental investigation of SI engine performance and exhaust emissions using ethanol-gasoline blended fuels","authors":"T. Yusaf, D. Buttsworth, G. Najafi","doi":"10.1109/ICEENVIRON.2009.5398648","DOIUrl":"https://doi.org/10.1109/ICEENVIRON.2009.5398648","url":null,"abstract":"In this study, potato waste bioethanol was evaluated as an alternative fuel for gasoline engines. The pollutant emissions and performance of a four stroke SI engine operating on ethanol-gasoline blends has been investigated experimentally and theoretically. In the theoretical study, a quasi-dimensional SI engine cycle model has been adapted for spark ignition engines running on gasoline-ethanol blends. A mathematical model using Matlab software was developed using the first law of thermodynamics and conservation equations to predict the SI engine performance for different blend ratios. The model was also used to evaluate the engine emissions and the mechanical and heat losses in the engine which is not included in this study. Experiments were performed with the blends containing 5, 10, 15 and 20 vol% ethanol. The results show that increasing ethanol-gasoline blended will marginally increase the power and torque output of the engine. For ethanol blends it was found that the brake specific fuel consumption (bsfc) was decreased using 5% and 10% ethanol while the brake thermal efficiency and the volumetric efficiency were increased. Exhaust gas emissions were measured and analyzed for unburned hydrocarbons (UHC), carbon dioxide (CO2), carbon monoxide (CO), Oxygen (O2) and Oxide of Nitrogen NOx at engine speeds ranging from 1000 to 5000 rpm. The concentration of CO and UHC emissions in the exhaust pipe were found to be decreased when ethanol blends were introduced. The concentration of CO2 and NOx was found to be increased when ethanol is introduced. Results obtained from both theoretical and experimental studies were compared. The simulation results have been validated against data from experiments and it results to a good agreement between the trends in the predicted and experimental results.","PeriodicalId":211736,"journal":{"name":"2009 3rd International Conference on Energy and Environment (ICEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114180774","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: 22

Sustainaibility assessment of power plants projects firing on different fuels 使用不同燃料的发电厂项目的可持续性评估

2009 3rd International Conference on Energy and Environment (ICEE) Pub Date : 2009-12-01 DOI: 10.1109/ICEENVIRON.2009.5398643

R. Yonaidi, M. H. Boosroh

{"title":"Sustainaibility assessment of power plants projects firing on different fuels","authors":"R. Yonaidi, M. H. Boosroh","doi":"10.1109/ICEENVIRON.2009.5398643","DOIUrl":"https://doi.org/10.1109/ICEENVIRON.2009.5398643","url":null,"abstract":"Sustainability is becoming an issue of public concern, particularly for large scale development projects. In this work, a multi-criteria approach, called the Sustainability Assessment Method (SAM), is used to asses and rank the sustainability of various types of power plants firing on different types of fuel. It traces the impacts of using coal, oil, and natural gas for power generation over its full life cycle. The current work studies the impacts that are related to the economy and environment. The environmental impacts comprise of emission to atmosphere, nuisances, footprint, and waste, while the economic impact are taxes, dividends, reinvestment, social investment, and project expenditure. Three different types of fuel in power generation are studied i.e. coal, oil and gas. It was found that coal fired power plant provides the highest positive economic impact because of its lowest fuel price, but it also produces high environmental impact. As a result, coal fired power plant has moderate SAM indicator (SAMi) of 3.55%. On the other hand, gas fired power plant has the lowest environmental impact, even though it has lower positive economic impact relative to those for coal fired power plant. The SAMi for gas fired power plant is 28.56%. The present work also shows that oil fired power plant has negative value for both economic and environmental impact (SAMi = −100%). It means that with the current tariff and price, oil fired combined cycle is not only unsustainable but also not profitable. Among three the fuels investigated, it can be concluded that gas fired power plant is the best alternative in terms of sustainability followed by coal and oil fired power plant.","PeriodicalId":211736,"journal":{"name":"2009 3rd International Conference on Energy and Environment (ICEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131813742","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

Electronic plastic waste management in malaysia: the potential of waste to energy conversion 马来西亚的电子塑料废物管理:废物转化为能源的潜力

2009 3rd International Conference on Energy and Environment (ICEE) Pub Date : 2009-12-01 DOI: 10.1109/ICEENVIRON.2009.5398623

N. Othman, L. Sidek, N. Basri, M. Yunus, N. Othman

{"title":"Electronic plastic waste management in malaysia: the potential of waste to energy conversion","authors":"N. Othman, L. Sidek, N. Basri, M. Yunus, N. Othman","doi":"10.1109/ICEENVIRON.2009.5398623","DOIUrl":"https://doi.org/10.1109/ICEENVIRON.2009.5398623","url":null,"abstract":"The production of electronic products is one of the world's fasting growing industries today. Due to this phenomena, the amount of electronic waste generated increases proportionately with the production. The growing numbers of uses of plastic products in this sector contribute to electronic plastic waste generated. From the management of solid waste aspect, the production of electronic plastic waste has to be handled effectively. Generally, there are three options for electronic plastic waste recycling which is chemical, mechanical or thermal recycling. The main purpose of this paper is to discuss the research conducted on electronic plastic waste which consisted of various types of resin to determine the electronic plastic waste's potential as a source of energy. The physical and chemical characteristics of the electronic plastic waste are determined by the proximate analysis, ultimate analysis and the heavy metal content analysis of the plastic waste resin sample. The dulong formula was applied to calculate the heating value of electronic plastic waste based on the data obtained from the ultimate analysis. The result shows that the average heat value for an electronic waste is 30, 872.42 kj/kg or 7, 375 kcal/kg. The emmission factor analysis shows the concentration of air emission value which would probably be formed due to incineration activitiy is less than the effluent parameter of standard A and standard B limits fixed by the environmental quality act (clean air) 1978 for control air pollution. Basically, this research has succeeded in proving the potential of electronic plastic waste to be used as a source of energy in the future.","PeriodicalId":211736,"journal":{"name":"2009 3rd International Conference on Energy and Environment (ICEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129918063","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: 14