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Experimental Study on Solar Parabolic Dish Thermoelectric Generator
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Abstract:The applications of solar dish and thermoelectric generator have the research potential as green and clean energy generation from solar thermal route. In this paper, an attempt has been made to conduct an experimental study on small scale solar parabolic dish thermoelectric generator. The solar parabolic dish collector is fabricated using an unused satellite dish antenna fitted with polished aluminum sheet as concentrator surface. Thermoelectric generator consists of commercial thermoelectric modules embedded between the receiver plate and water cooled heat sink which is placed on the focal plane of manual tracking parabolic dish collector. The concentrated solar radiation and water cooled heat sink is the driving potential to generate electricity, various operating parameters like receiver plate temperature, power output and conversion efficiency with respect to solar radiation are studied. It is found that the receiver plate temperature is significantly affecting the power output. Also, in this study it is identified to reuse the unused dish antenna for solar collector and coupled with commercial thermoelectric module is simple fabrication method easy to adopt in the rural techno craft for small scale power generator to meet the isolated energy demands.
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Author:M. Eswaramoorthy, S. Shanmugam, AR. Veerappan
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Abstract | References Full Paper: PDF
(Size:2779KB), pp.62-66,
Pub. Date:
2013-
06-05, DownLoad:
6477
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An Experimental Study on Biomass Gasifier for Burner System
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Abstract:An Experimental study on biomass gasifier for burner system is presented in this paper. Biomass gasifier is developed and An Experimental study on biomass gasifier for burner system is presented in this paper. Biomass gasifier is developed and tested by using coconut shell as fuel for producing bio-gas. The generated bio-gas is directly used in burner system for combustion process and heating applications. The activated carbon is a waste product in this process, which is highly in demand for water purification system and can, sold to neutralize the fuel cost. In this work a Biomass Gasifier is designed, fabricated and commissioned to get biogas with carbon monoxide & carbon dioxide.
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Author:K. R. Dhurai, K. Ramalingam, R. Velavan, M. Eswaramoorthy
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Abstract | References Full Paper: PDF
(Size:425KB), pp.36-39,
Pub. Date:
2012-
05-14, DownLoad:
3199
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A Study on Renewable Energy: A Sustainable Solution for Future Energy Security
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Abstract:Our changing climate is placing our planet in peril. CO2 is the main green house gas emitted from various sources and power sector is solely responsible for 30% emission of CO2 throughout the world and this emission from power generation are projected to increase 46% by 2030. Fossil fuels had for so long been the most convenient and cheapest means of powering the world economy. But now they have been proved worthless to ensure energy security as 1.4 billion people have no access to electricity and world electricity demand is projected to grow by 2.2% per year between 2008 and 2035, from 16,819 TWh to about 30,300 TWh. It’s for sure that we cannot sustain a future, powered by a fuel which is rapidly disappearing. Nuclear energy would also not be a sustainable solution as it associates with some fatal risk. Therefore, renewable energy is the only viable option to ensure energy security in a sustainable way. It has no environmental degradation problem like fossil fuel and not associates with any radiation problem like nuclear energy. Most importantly renewable energy is abundant in nature, all we need is to just tap energy and transform. In this paper authors discussed about the risk from running out conventional energy and imposing threat to the human race and found out its solution by unearthing the real fact of renewable energy which will surely ensure sustainable development of civilization.
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Author:Dewan Mowdudur Rahman, Mahmudur Rahman, Riasad Amin, Navid Bin Sakhawat
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Abstract | References Full Paper: PDF
(Size:222KB), pp.63-68,
Pub. Date:
2012-
08-30, DownLoad:
1496
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Day-ahead Electricity Price Forecasting Using PSO -Based LLWNN Model
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Abstract:Price forecasting has become an important activity for market participants in electric power industry for developing their bidding strategies. The work presented in this paper makes use of particle swarm optimization based local linear wavelet neural networks (LLWNN) to find the Market Clearing Price (MCP) for a given period, with a certain confidence level. The results of the new method show significant improvement in the price forecasting process.
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Author:Prasanta kumar Pany, Sakti Prasad Ghoshal
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Abstract | References Full Paper: PDF
(Size:214KB), pp.99-106,
Pub. Date:
2013-
08-26, DownLoad:
1434
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Nuclear Power Plant Development in Java-Madura-Bali Area: The Indonesian Long-term Electricity Planning Perspective
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Abstract:This paper studies the nuclear power plant development in Java-Madura-Bali area in the Indonesian Long-term electricity planning perspective. Indonesian electricity demand has continuously risen year by year particularly in the Java-Madura-Bali area, or often known as “JaMaLi” area. Holding the largest share for economic activities in the country, it is served by the largest electricity grid in Indonesia called the JaMaLi interconnection system. It is found that the electricity demand in JaMaLi area will increase to 308 TWh in 2025, of which the demand will be dominated by the household sector with 131 TWh or 42% of total electricity consumption. To meet this future demand, a total of 66 GW of installed power plant capacity have to be developed, being fuelled by various energy resources available in Indonesia, excluding nuclear. This paper explores the possibility of long-term electricity expansion planning in the JaMaLi area by including nuclear power plant in order to meet the future demand and environmental protection concern as well as to increase the supply security up to 2027. During the study period, the potential of energy resources available for JaMaLi area along with two electricity supply scenarios based on nuclear and non-nuclear sources are assessed. At the end of the projection, the nuclear power plants may contribute to the reducing of the fossil power plants requirement such as coal and natural gas by 2 GW and 1.9 GW respectively. Meanwhile, the total emission reduction achieved by nuclear scenario is estimated 16.8 million tons of CO2 equivalent.
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Author:Yusak Tanoto, Muhammad Ery Wijaya
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Abstract | References Full Paper: PDF
(Size:230KB), pp.32-35,
Pub. Date:
2012-
05-14, DownLoad:
1331
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A New Point of View for Insulation Calculations
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Abstract:The main aim of this study is to provide a new perspective for general insulation calculations. Some important points previously ignored in other studies were considered in this study. A new approach was proposed to obtain precise and realistic results. Four important recommendations regarding determination of the degree-hours values, effect of concrete columns on external wall, type of credit, consideration of labor and auxiliary equipment costs exist for the proposed approach. Optimum insulation thicknesses, energy savings and payback period calculations were conducted for different fuels, degree-hours values and type of credit for insulation.
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Author:Z. Oktay, C. Coskun, M. Ertürk
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Abstract | References Full Paper: PDF
(Size:909KB), pp.111-117,
Pub. Date:
2014-
06-10, DownLoad:
1298
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A New Model Applied to the Distribution System Planning for Competitive Electricity Markets
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Abstract:Recently, the restructuring of electricity market and the development of technology have been enhancing the application of distributed generators (DGs) and renewable energy resources. Hence, the planning of distribution systems (PDS) for competitive electricity markets (CEMs) has encountered impacts which need to be investigated. This paper proposes a novel approach for optimazing distribution system planning in CEMs with the presence of DGs. The proposed model can determine equipment sizing and timeframe required for upgrading power network in order for utilities to purchase electric energy from electricity markets. Besides, the problems of DG system development (Optimal DG displacement, sizing, technology selection and installation period) in distribution planning to meet the demand growth will be solved. The model uses the objective function that minimizes the total cost of network (feeders and transformers) upgrading, new DGs installation, distribution systems operating, and electric energy purchasing from CEMs. The proposed model is tested using a 33 bus 22 kV radial feeder. The calculation is programmed in GAMS environment.
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Author:Vu Van Thang, Bach Quoc Khanh, Dang Quoc Thong
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Abstract | References Full Paper: PDF
(Size:247KB), pp.239-248,
Pub. Date:
2013-
12-20, DownLoad:
1103
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Field Programmable Gate Array based Smart System for Short Term Electric Load Forecasting and Load Scheduling for Smart Grid Applications
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Abstract:The paper proposes Field Programmable Gate Array (FPGA) implementation of a novel algorithm for short term electric load estimation and hardware implementation of load scheduling algorithm from the dataset generated by load estimation algorithm. The algorithm proposed in this paper uses load consumption and temperature of previous few days as parameters for estimation and this forecasted data is used for scheduling purpose. The information of load consumption can be obtained from smart meters already installed in smart grid. Estimation is done separately for Weekdays & Weekends/Public Holidays. The approach proposed applies all these parameters as coefficients for Kalman Filter algorithm to estimate hourly loads. Using the proposed algorithm the load was estimated with absolute mean percentage error of as low as 1%, which is better than using Artificial Neural Network technique where the absolute mean percentage error has been found to be around 2.2%, and the algorithm for load scheduling has been successfully implemented on the logic of FPGA.
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Author:Shubhajit Roy Chowdhury, Varun Ramchandani
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Abstract | References Full Paper: PDF
(Size:2266KB), pp.127-140,
Pub. Date:
2014-
06-10, DownLoad:
1045
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Current Philosophies of Intelligent Techniques based AGC for Interconnected Power Systems
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Abstract:This article presents the operation and control of complex interconnected power systems with automatic generation control (AGC). Keeping in view the current status of power systems in India, operation of interconnected power systems, the control functions employed at different control levels are discussed and reviewed. Recent advances in control strategies like the application of intelligent techniques is considered in the power systems.
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Author:Ibraheem eem, Omveer Singh
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Abstract | References Full Paper: PDF
(Size:59KB), pp.141-150,
Pub. Date:
2014-
06-10, DownLoad:
1024
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Trends and Seasonal Patterns in the Composition and Energy Content of Waste from three Ukrainian City Districts: The Influence of Commercial and Residential Areas
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Abstract:The volume and composition of Ukraine’s municipal solid waste (MSW) has changed in recent years. The percentage of paper and plastics has increased considerably; consequently, manual separation of these materials from landfills has become necessary. In 2012, thirteen million tons of MSW were collected and questions about the origin and effects of these increases have arisen.
According to the EU Waste Directive, the separation and subsequent recycling of certain waste materials should be a priority; however, these materials can also be used to produce electricity, heat, and gas. This presents a difficult choice because Ukraine currently depends heavily on imported gas for fuel.
This article studied the composition and energy content of waste collected separately from three sectors in a mid-sized town near Kiev. The first sector consisted of office buildings, the second consisted of multi-family housing units, and the third consisted of single-family housing units. The varying waste compositions identified among the sectors are relevant to potential energy-recovery planning efforts, particularly if energy-rich paper and plastics are sorted out. Multi-family housing waste was found to contain the greatest percentage of paper and plastics of the three sectors analyzed; this number has increased in recent years. Conversely, the pattern followed by single-family housing waste appeared weaker. For waste produced by the office district, average monthly wages had a strong impact on the materials that were collected. Moreover, strong seasonal effects were observed in all districts. The presented data support future waste management decisions related to waste utilization in the current and long terms. In contrast to western European countries, seasonal changes exhibited by unsorted municipal waste must be considered when making waste management decisions in Eastern Europe. The unique findings of this report may be relevant to other developing countries.
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Author:Michael Hoffmann, Sergey Shmarin, Gintaras Denafas, Valeriy Mykhaylenko, Stanislav Ogorodnik, Christian Ludwig
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Abstract | References Full Paper: PDF
(Size:383KB), pp.171-184,
Pub. Date:
2015-
12-20, DownLoad:
701
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