...DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING DUAL EFFICIENT SOLAR PANEL (A BREAKTHROUGH IN RENEWABLE ENERGY RESOURCES) AUTHORS: 1)SATHYA N 2)VIJAYALAKSHMI K 3)SUMITHRA S III Yr – EEE III Yr – EEE III Yr – EEE sathya.sathyanatesan@gmail.com v2.28.kavi@gmail.com sumithras60@gmail.com PH : 82209 90854 PH : 97892 21605 PH : 99655 27343 CONTENTS * PROBLEM STATEMENT * ABSTRACT * INTRODUCTION * CONVENTIONAL SOLAR PANEL * WORKING OF SOLAR PANEL * PROPOSING SYSTEM * A THERMIONIC EFFECT * THERMIONIC CONVERTER * PARABOLIC CONCENTRATORS * PROPOSED SET UP * CONCLUSION PROBLEM STATEMENT: Generally the solar panels are considered to be inefficient for harnessing electrical energy due to the fact that the efficiency we are obtaining out of solar modules is of the range of 20-30%. Because the light energy only utilized by the solar panel for the production of electricity in the meantime the heat energy from the sun is left wasted in current situations. ABSTRACT: In our paper we are proposing some ideas in which it is possible to harness the light energy as well as heat energy from the same solar panel modules to generate electricity. Solar panels utilizing light energy. So we don’t have much more problem in it. But to make use of the heat energy Caesium coating is provided. By using the thermionic effect heat energy is turned to...
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...FOOTPRINTING & SOLAR POWER TECHNOLOGY BIRLA INSTITUTE OF TECHNOLOGY AND SCIENCE PILANI A REPORT ON CARBON FOOTPRINTING & SOLAR POWER TECHNOLOGY Prepared By: Saurabh Khandelwal (2008B3A3687P) Utkarsh Goklani (2008B3A1685P) Prepared For: Dr. Ajit Pratap SIngh Report submitted in partial fulfilment of requirements of BITS C323 Study Oriented Project NOVEMBER 2011 Acknowledgement We would like to express our sincere gratitude to all those who gave us the possibility to work on this topic. We would like to thank Dr. Ajit Pratap Singh Sir for helping us choose this topic and guiding us throughout the report. His constant encouragement and infinite support were the key ingredients of our report. We are deeply indebted to Dean ESD Prof. Rajiv Gupta and the faculty members for providing us with the information required in the project. Finally, we would like to thank our college BITS PILANI for providing an opportunity to do this informative report. Abstract Carbon Credits are a tradable permit scheme under United Nations Framework Convention for Climate Change (UNFCCC) which give the owner the right to emit one metric tonne of carbon-di-oxide equivalent. They provide an efficient mechanism to reduce the green house gas emissions by monetizing the reduction in emissions. Rural India has a tremendous potential to earn carbon credits by setting up household based energy substitution or...
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...and an owner’s built habitat. The individuals probably understood that creating an organization would benefit their agenda more efficiently and effectively than just a charter or group. The organizations then have the interest of their members. Their members have founded these organizations simply to provide better building practices, cleaner environment, more effecient energy use, and better overall quality life built directly from the green building elements. The National Association of Home Builders (NAHB) does not appear to have been started with the initial effort to create green building practices. This organization has been around longer than the green building movement began its’ roots, but has watched the trends of the housing market, evaluated the financial systems within this industry, and have forecast from these analysis. Provided, the NAHB has seen a growing interest in the community to create higher quality homes and businesses while also protecting the environment. The NAHB bagan their interest probably our of two main assets: grass root community involvement and financial forecasting providing better returns and overall satisfaction while managing user retention and political awareness. I think the most crucial element of green design would be best practices. Best practices(BP) is a culmination of proper planning, education into the many green building sectors, and overall...
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...INTERMEDIATE VOCATIONAL COURSE Second Year NON-CONVENTIONAL ENERGY SOURCES For the Course of Rural Engineering Technician State Institute of Vocational Education Directorate of Intermediate Education Govt. of Andhra Pradesh, Hyderabad. 2005 Author Sri Shali Habibulla M.Tech (Ref & A/c), Hons. C.H.E. M.I.S.T.E. Department of Rural Engineering Technician Govt. Junior College (Boys) New, Town, ANANTAPUR - 515 001. Editor Sri K. Jagadish Junior Lecturer in R.E.T. Govt. Junior College Vmedugula - 531027. Vizag (Dist.) PREFACE The main objective of vocational education is to train the students at +2 level for meeting the demands for the skilled manpower in both organised and unorganised sectors and also to provide an alternative channel for those who aimlessly persue higher education and to prepare them for self reliance. The State Institute of Vocational Education (SIVE) in collaboration with the Board of Intermediate Education, Andhra Pradesh has developed curriculum for 43 vocational courses in the field of Engineering & Technology Agriculture Health & Paramedical Business & Commerce Home Science and Humanities Accordingly the text books have been developed by SIVE as per the restructured curriculum by utilizing the services of various professional teachers in the respective fields. I am sure that this book will be immensely useful to the vocational students and teachers in understanding the concepts. I wish to place my sincere thanks on record...
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...Unit 1 Revision (higher tier) Energy There are 9 different forms of energy: Light Heat Chemical Kinetic (movement) Electrical Elastic (Gravitational) potential Nuclear Sound Energy is never created or destroyed! Energy is transferred from one form to another form. Not all of the energy transferred by a device is useful energy. Potential energy is stored energy. All energy will eventually spread out to the surroundings as heat. Sample question 1 Sankey diagrams and efficiency Sample sankey diagram for a light bulb Sankey diagrams are ways of representing the different energy transformations that take place in different electrical devices. The start of the sankey diagram shows the total energy going into the device. The diagram then splits off into different sized arrows to represent the other energy transfers that take place, the bigger the arrow the larger the energy. The energy entering the device must equal the energy leaving the device. To know how good a device is at transferring energy you need to be able to calculate the efficiency. To do that you need to use the following equation (which will be given in the exam) OR So for the above example the answer would be Efficiency= 10100=0.1 The closer the efficiency is to 1 the more useful energy the device is transferring. So for the light bulb example we got an efficiency of 0.1, so the light bulb isn’t very good and transferring useful energy. Sample question 2 Kinetic...
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...ZUB (Centre for Sustainable Building), situated in Kassel, Germany. It is an experimental office building, with a very detailed monitoring system for studying low-energy and low-exergy building technologies. The conditioning system is a TABS (Thermally Activated Building System), with water pipes embedded in the centre of a structural concrete slab, thus resulting in a ceiling radiant system. The high thermal capacity of the slab offers great opportunities to store heat, to dampen temperature fluctuations or to shift the peak-load; but, on the other hand, it implies a slow response of the system, which requires an accurate regulation strategy to front the variability of several factors, and to achieve the desired indoor temperature. A TRNSYS model of an office room has been developed, thus allowing to implement several regulations in the software and to test their performance. The main conclusion, carried out from the simulations, is that the implementation of a Feed-forward controller gives appreciable advantages in the temperature control, achieving both a more precise control of thermal conditions and a reduction of the energy consumption. The parameters taken into account by the controller are more than one and, more in detail, they are the operative temperature, the variation of external temperature, the solar radiation and the effect of internal gains....
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...Technologies for Alternative Energy Climate Change Working Paper No. 7 Ainsley Jolley Climate Change Project Working Paper Series March 2006 Centre for Strategic Economic Studies Victoria University PO Box 14428 Melbourne VIC 8001 AUSTRALIA Telephone +613 9919 1340 Fax +613 9919 1350 Email: csesinfo@vu.edu.au Website: http://www.cfses.com Technologies for Alternative Energy 1. Introduction In Papers 5 and 6 technologies for the main sources of energy consumption were discussed. In Papers 7 and 8 the attention is focussed on technologies that impact on emissions from energy production. Table 1 provides data on the main sources of GHG emissions in the advanced economies for the year 2000. Table 1. Sources of GHG Emissions in the Advanced Economies, 2000 Source of emissions Electricity and heat production Petroleum refining Other energy production (coal and gas transformation) Fugitive emissions (coal, oil and gas) Total energy production All sources of emissions Note: (a) energy production as % of all sources of emissions. Source: CSES (2004). Tg CO2 -e 3831.2 420.7 324.6 441.5 5018.1 13175.3 % of total 76.3 8.4 6.5 8.8 38.1 (a) Papers 7 and 8 focus on emissions from the production of electricity and heat, which represent 76.3% of all emissions related to energy production. The other sources of emissions are not discussed in detail in this report. Coverage of the issues relating to these sources of emissions is given in CSES (2004). Incremental technological...
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...This in turn heats the planet’s surface and atmosphere, making life possible. As Earth warmed up, this solar energy is radiated by thermal radiation or infrared heat, traveling directly out to space, thus cooling the Earth. However, some of the outgoing radiation is re-absorbed by carbon dioxide, water vapor and other gases in the atmosphere and is radiated back to Earth’s surface; these gases are known as greenhouse gases due to their heat-trapping capacity. This re-absorption process is naturally good; the Earth’s average surface temperature would be very cold if not for the greenhouse gases. The problem begins when the concentration of greenhouse gases in the atmosphere were artificially raised by humankind at an ever-increasing rate since the past 250 years. As of 2004, over 8 billion tons of carbon dioxide was pumped out per year; natural carbon sinks such as forests and the ocean absorbed some of this, while the rest accumulated in the atmosphere. Millions of pounds of methane are produced in landfills and agricultural decomposition of biomass and animal manure. Nitrous oxide is released into the atmosphere by nitrogen-based fertilizers and other soil management practices. Once released, these greenhouse gases stay in the atmosphere for decades or longer. According to the Intergovernmental Panel on Climate Change (IPCC), carbon dioxide and methane levels have increased by 35 and 148 percent since the 1750 industrial revolution. Paleoclimate readings taken from ice cores and...
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...USING ELECTRICITY AT HOME Energy-Saving Tips and Safety Information Using Electricity at Home Introduction..................................................................................................................... 3 How to Save Energy and Money . ............................................................................... 4 Cooling........................................................................................................................ 4 Lighting......................................................................................................................... 5 Weatherizing................................................................................................................ 6 Electrical Appliances.................................................................................................... 8 Refrigerator/Freezer..................................................................................................... 8 Oven/Microwave.......................................................................................................... 9 Dishwasher.................................................................................................................. 9 Clothes Washer/Dryer............................................................................................... 10 A Quick Start to Online Resources........................................................................... 14 2 Introduction ...
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...Photovoltaic Power Systems Compiled by Tracy Dahl Overview Photovoltaic (PV) technology converts one form of energy (sunlight) into another form of energy (electricity) using no moving parts, consuming no conventional fossil fuels, creating no pollution, and lasting for decades with very little maintenance. The use of a widely available and reasonably reliable fuel source—the sun—with no associated storage or transportation difficulties and no emissions makes this technology eminently practicable for powering remote scientific research platforms. Indeed, numerous examples of successfully deployed systems are already available. The completely scaleable nature of the technology also lends itself well to varying power requirements–from the smallest autonomous research platforms to infrastructure-based systems. This technology can be limited, however, by annual fluctuations in solar insolation, especially at extreme latitudes. Based on semiconductor technology, solar cells operate on the principle that electricity will flow between two semiconductors when they are put into contact with each other and exposed to light (photons). This phenomenon, known as the photovoltaic effect, was first discovered by Edmund Becquerel in 1839. Actual development of PV technology began in the 1950s and gained greater impetus through the NASA space program during the 1960s. Research continues today at national laboratories and within private industry, focusing on increasing conversion efficiencies...
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...This page intentionally left blank SEVENTH EDITION Fundamentals of Heat and Mass Transfer THEODORE L. BERGMAN Department of Mechanical Engineering University of Connecticut ADRIENNE S. LAVINE Mechanical and Aerospace Engineering Department University of California, Los Angeles FRANK P. INCROPERA College of Engineering University of Notre Dame DAVID P. DEWITT School of Mechanical Engineering Purdue University JOHN WILEY & SONS VICE PRESIDENT & PUBLISHER EXECUTIVE EDITOR EDITORIAL ASSISTANT MARKETING MANAGER PRODUCTION MANAGER PRODUCTION EDITOR DESIGNER EXECUTIVE MEDIA EDITOR PRODUCTION MANAGEMENT SERVICES Don Fowley Linda Ratts Renata Marchione Christopher Ruel Dorothy Sinclair Sandra Dumas Wendy Lai Thomas Kulesa MPS Ltd. This book was typeset in 10.5/12 Times Roman by MPS Limited, a Macmillan Company and printed and bound by R. R. Donnelley (Jefferson City). The cover was printed by R. R. Donnelley (Jefferson City). Founded in 1807, John Wiley & Sons, Inc. has been a valued source of knowledge and understanding for more than 200 years, helping people around the world meet their needs and fulfill their aspirations. Our company is built on a foundation of principles that include responsibility to the communities we serve and where we live and work. In 2008, we launched a Corporate Citizenship Initiative, a global effort to address the environmental, social, economic, and ethical challenges we face in our business. Among the issues we are addressing...
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... A National Mission on Sustainable Habitat was launched to improve energy efficiency in buildings, manage solid wastes and modal shift to public transport. The Mission aims to promote energy efficiency as an integral part of urban planning and urban renewal through three initiatives: (i) The Energy Conservation Building Code, which addresses optimization of building energy demand; (ii) Recycling of material and Urban Waste Management with a special focus on producing power from waste, biochemical conversion, waste water use, sewage utilization and recycling options wherever possible and others; (iii) Better urban planning and modal shift to public transport to ensure efficient and convenient public transport. In addition, the Mission will address the need to adapt to future climate change by improving the resilience of infrastructure, community based disaster management, and measures for improving the warning system for extreme weather events. Capacity building would be an important component of this Mission. As part of the Mission for Sustainable Habitat and Green Code for Chandigarh, detailed action plan and guidelines have been prepared by the Ministry of Urban Development (MoUD) which could be City’s vision for sustainability. Chandigarh is a part of the Mission for solar energy to harness solar energy to meet the requirements of power. In addition to address the issue of mitigation of GHG emission from municipal waste, appropriate actions are required through adoption...
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...Hydro-electric power Hydroelectric power or hydroelectricity is electrical power which is generated through the energy of falling water. Hydro electric power systems work by converting potential energy stored in water held at height into kinetic energy to turn a turbine in order to produce electricity. This is a mature technology with water mills already extensively used by the time of the industrial revolution. Pumped storage: Reusing water for peak electricity demand Demand for electricity is not constant. Demand goes up and down during the day, and overnight there is less need for electricity in homes, businesses, and other facilities. For example, during the day on a hot August weekday in Australia the demand for electricity to run air-conditioning will be high but during the night the demand will be lower. Hydroelectric plants are more efficient at providing for peak power demands during short periods than are fossil-fuel and nuclear power plants, and one way of doing that is by using "pumped storage", which reuses the same water more than once. Pumped storage is a method of keeping water in reserve for peak period power demands by pumping water that has already flowed through the turbines back up a storage pool above the powerplant at a time when customer demand for energy is low, such as during the middle of the night. The water is then allowed to flow back through the turbine-generators at times when demand is high and a heavy load is placed on the system. Advantages: ...
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...Clean Technology: A greener aspect to development Institute of Business Administration University of Dhaka 1 Economics of Geography and Environment (G101) Clean Technology: a greener aspect to development Clean Technology: A greener aspect to development Prepared for: Dr. A. M. M. Amanat Ullah Khan Professor, Department of Geography and Environment University of Dhaka Prepared by: Ahamed Najeeb Rahman ZR-74 Tasnia Azim Choudhury RH-76 M. Samiul Haque ZR-84 Jidny Rubaiyat Shoummo ZR-85 Zahin Azad Moslem ZR-121 BBA 20th Date of Submission: June 15, 2012 Institute of Business Administration University of Dhaka 2 LETTER OF TRANSMITTAL 15 June, 2012. Dr. A. M. M. Amanat Ullah Khan Course Instructor Economics of Geography and Environment University of Dhaka Subject: Letter of transmittal for Economics of Geography and Environment course termpaper. Dear Sir, Here is the report which you asked us to submit for the requirement of our undergraduate course- Economics of Geography and Environment (G101). The title of the report is “Clean technology: a greener aspect to development”, which is a descriptive analysis of how Green Technology works and can help the environment. This report has been prepared under your authorization. Without your permission, no part of this report can or will be revealed. This report never has been, and never will be, reproduced for any other IBA course. We sincerely hope that you we were able to fulfil the course requirement...
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...Methodology 2 1.5 Limitations 2 2.0 What is Green Technology 3 3.0 Prominent Examples of green Technology 7 3.1 Solar Energy 7 3.2 Biofuels 15 3.3 Green Building 21 4.0 Conclusion 33 ii Economics of Geography and Environment (G101) Clean Technology: a greener aspect to development SUMMARY In a world of rapid growth, both in terms of economy and population, human beings have sought to influence the environment around them for a better, more efficient and easier life. The resources that we have used up from the environment have often been nonrenewable and in our heedless march to glorious comfort, we have ignored the consequences of the effect that we are having on the world we live in. With the results of our negative impact on nature coming around to haunt us, there have been a rising global awareness and movement to better ourselves. Green technology is a major part of it. Green technology is the application of the environmental science to conserve the natural environment and resources, and to curb the negative impacts of human involvement. The main idea behind green technology is to provide sustainable growth. That is, using resources from the Earth in a renewable fashion. The following report outlines some aspects of green technology and discusses three main ideas: Solar energy, Green Buildings, Biofuels. In the report, it has been discussed how each of these technologies are environmentfriendly, how they...
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