Roof Project Poster
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Design and Layout of Renewable Energy Equipment for the New Roof of the EPSEVG R. Dornberger1, I. Kahraman2, J. Segalas3 ; M.Torrent3 1Technical
University of Mining, Freiberg, Germany
2University
3Technical
of Dumlupınar, Kütahya, Turkey
University of Catalunya, Vilanova i la Geltrú, Spain
Introduction
Background and Purpose
Over the last few years there has been an increased demand for renewable energy. The reason for this is not only the drain on fossil fuel resources such as coal or oil, but also the global warming caused by the high emissions of Carbon dioxide which occur when fossil fuels are burned to produce usable energy. High levels of pollution have forced the world’s population to change the way they think . By changing to renewable energies, the emissions of CO2 caused by burning fossil resources to produce energy are dramatically reduced worldwide. To reduce CO2 emissions, which are in part to blame for global warming, the leaders of the European Union reached an agreement in March 2007 that 20 percent of the nations’ energy should be produced by renewable energies by 2020 [01].
This project deals with the reconstruction of the roof of the building VG 1-2-3 of the EPSEVG. The old roof will be substituted by a renewable energy equipment showroom, which will also be used to generate energy for the building itself. With the connection of a solar thermal system, the hot water needs of the cafeteria and the showers can be covered. If a photovoltaic system is connected, the energy produced can be used to power the lighting of the electrical lab L008. Another idea is to sell the energy produced to the grid system. The main goal of this project is to use the installations for educational purposes. To this end information points, which show important values of the equipment and the system in real time, have been designed.
The aim of this project is to design a feasible solar renewable energy showroom, which will power parts of the building and will be used for educational purposes.
Methods & Calculations Solar Thermal (ST) System
Photovoltaic (PV) System
1. Evaluation of the most efficient orientation and inclination of the solar panels in the region of Barcelona [02]
1. Decide which systems can be applied [06]
Energy demand of the lightings in the electro-technical lab
• Isolated system
2. Calculation of the hot water demand
• Grid-connected system
3. F-Chart analysis to calculate the potential solar fraction per m² of solar panel [03]
• Combination of both systems
4. Select suitable flat and vacuum tube collectors.[04]
2. Calculate energy demand in the chosen rooms which use the isolated system
5. EPANET software is used to control the hydraulic parameters of the solar thermal system [05]
3. Evaluate the number of PV cells for the isolated system 3. Solar fraction per m² of panel
2. Energy demand calculations for the isolated system and chosen room of the lab (yellow)
• Choose equipment for the isolated system with Sunny-Design software [07] 4. Draw basic layout of the cells and the equipment for this system [04] 5. Calculate maximum usable surface for PV cells on the roof for the grid connected system 6. Draw layout of this system [08]
1. Solar radiation in Barcelona at 0° azimuth and 40° inclination
• Choose the equipment for the gridconnected systems with the SunnyDesign Software [07]
5. Basic MS Visio layout of the solar thermal system
3. Choosing equipment for the isolated system with SunnyDesign
Results The F- Chart calculation for the solar thermal system shows that one Viessmann 200F 5DI flat plate and two SolarUK LaZer2 vacuum tube collectors are needed to heat the 17000l water per month for the cafeteria and the showers. Each type of solar thermal panel has its own water circuit, which is hydraulically balanced. Both circuits are connected to a heat exchanger where the heat of the solar fluid is transferred to the service water. With the whole system an annual solar fraction of 0,854 can be reached. The amortization time will last eight to nine years, depending on the equipment used.
This figure shows the information board for the solar thermal system. The heated water is used for the cafeteria and the showers in the building VG 1-2-3 of the EPSEVG. All the measured values of the system are shown in real time.
To power the lighting of the electrical engineering lab008, six polycrystalline Atersa 214P panels are used. They are connected in a 24 V array with two panels in series and three in parallel. The energy produced will be directly used or stored in four long-life Atersa batteries. To control the system, a regulator from Steca is used. The energy produced by the photovoltaic array is inverted from direct to alternating current before its use in the lab.
This figure shows the information board for the isolated photovoltaic system to power room L008 (the electrical engineering lab) of the EPSEVG. All the important measured values are shown in real time.
Conclusion
Acknowledgements
The designed solar energy systems are technically feasible. Easy accessibility for students, visitors, companies and handicapped people is guaranteed by the design of the layout of the systems on the roof. With the implementation of the solar thermal and the photovoltaic system, the chosen facilities of the building can be supplied in a more energy efficient way. By powering the water heating system and the lighting in the lab with renewable energy equipment, the yearly CO2 emission can be reduced by nearly 2500 kg. By designing the information boards, the first step towards using the installation for educational purposes has been taken. In the future the information points can easily be connected to the labs of the university and the recorded values can be used for research and studies.
We would like to thank all the persons who were involved in the project for the information, constructive criticism, improvements and the perfect coordination during the European Project Semester at the School of Engineering of Vilanova i la Geltrú (UPC)
Further Information More information about the project can be found in the project report. Do not hesitate to contact the persons, involved this project. Their email addresses are listed below: Roman Dornberger: [email protected] Marcel Torrent: [email protected] Ilgın Kahraman: [email protected] Jordi Segalas: [email protected]
Literature / References / Software [01] http://en.wikipedia.org/wiki/Renewable_energy; [02] Solar Atlas Catalunya; [03] Literature Review of Uncertainty of Analysis Methods (Report on the Texas Commission of Environmental Quality); [04] Microsoft Visio; [05] EPANET, www.epa.gov; [06] Energía solar fotovoltaica, 2a edición, M. Carlos Tobajas Vázquez; [07] SunnyDesign, www.sma.de; [08] AutoCad 2007
University of Mining, Freiberg, Germany
2University
3Technical
of Dumlupınar, Kütahya, Turkey
University of Catalunya, Vilanova i la Geltrú, Spain
Introduction
Background and Purpose
Over the last few years there has been an increased demand for renewable energy. The reason for this is not only the drain on fossil fuel resources such as coal or oil, but also the global warming caused by the high emissions of Carbon dioxide which occur when fossil fuels are burned to produce usable energy. High levels of pollution have forced the world’s population to change the way they think . By changing to renewable energies, the emissions of CO2 caused by burning fossil resources to produce energy are dramatically reduced worldwide. To reduce CO2 emissions, which are in part to blame for global warming, the leaders of the European Union reached an agreement in March 2007 that 20 percent of the nations’ energy should be produced by renewable energies by 2020 [01].
This project deals with the reconstruction of the roof of the building VG 1-2-3 of the EPSEVG. The old roof will be substituted by a renewable energy equipment showroom, which will also be used to generate energy for the building itself. With the connection of a solar thermal system, the hot water needs of the cafeteria and the showers can be covered. If a photovoltaic system is connected, the energy produced can be used to power the lighting of the electrical lab L008. Another idea is to sell the energy produced to the grid system. The main goal of this project is to use the installations for educational purposes. To this end information points, which show important values of the equipment and the system in real time, have been designed.
The aim of this project is to design a feasible solar renewable energy showroom, which will power parts of the building and will be used for educational purposes.
Methods & Calculations Solar Thermal (ST) System
Photovoltaic (PV) System
1. Evaluation of the most efficient orientation and inclination of the solar panels in the region of Barcelona [02]
1. Decide which systems can be applied [06]
Energy demand of the lightings in the electro-technical lab
• Isolated system
2. Calculation of the hot water demand
• Grid-connected system
3. F-Chart analysis to calculate the potential solar fraction per m² of solar panel [03]
• Combination of both systems
4. Select suitable flat and vacuum tube collectors.[04]
2. Calculate energy demand in the chosen rooms which use the isolated system
5. EPANET software is used to control the hydraulic parameters of the solar thermal system [05]
3. Evaluate the number of PV cells for the isolated system 3. Solar fraction per m² of panel
2. Energy demand calculations for the isolated system and chosen room of the lab (yellow)
• Choose equipment for the isolated system with Sunny-Design software [07] 4. Draw basic layout of the cells and the equipment for this system [04] 5. Calculate maximum usable surface for PV cells on the roof for the grid connected system 6. Draw layout of this system [08]
1. Solar radiation in Barcelona at 0° azimuth and 40° inclination
• Choose the equipment for the gridconnected systems with the SunnyDesign Software [07]
5. Basic MS Visio layout of the solar thermal system
3. Choosing equipment for the isolated system with SunnyDesign
Results The F- Chart calculation for the solar thermal system shows that one Viessmann 200F 5DI flat plate and two SolarUK LaZer2 vacuum tube collectors are needed to heat the 17000l water per month for the cafeteria and the showers. Each type of solar thermal panel has its own water circuit, which is hydraulically balanced. Both circuits are connected to a heat exchanger where the heat of the solar fluid is transferred to the service water. With the whole system an annual solar fraction of 0,854 can be reached. The amortization time will last eight to nine years, depending on the equipment used.
This figure shows the information board for the solar thermal system. The heated water is used for the cafeteria and the showers in the building VG 1-2-3 of the EPSEVG. All the measured values of the system are shown in real time.
To power the lighting of the electrical engineering lab008, six polycrystalline Atersa 214P panels are used. They are connected in a 24 V array with two panels in series and three in parallel. The energy produced will be directly used or stored in four long-life Atersa batteries. To control the system, a regulator from Steca is used. The energy produced by the photovoltaic array is inverted from direct to alternating current before its use in the lab.
This figure shows the information board for the isolated photovoltaic system to power room L008 (the electrical engineering lab) of the EPSEVG. All the important measured values are shown in real time.
Conclusion
Acknowledgements
The designed solar energy systems are technically feasible. Easy accessibility for students, visitors, companies and handicapped people is guaranteed by the design of the layout of the systems on the roof. With the implementation of the solar thermal and the photovoltaic system, the chosen facilities of the building can be supplied in a more energy efficient way. By powering the water heating system and the lighting in the lab with renewable energy equipment, the yearly CO2 emission can be reduced by nearly 2500 kg. By designing the information boards, the first step towards using the installation for educational purposes has been taken. In the future the information points can easily be connected to the labs of the university and the recorded values can be used for research and studies.
We would like to thank all the persons who were involved in the project for the information, constructive criticism, improvements and the perfect coordination during the European Project Semester at the School of Engineering of Vilanova i la Geltrú (UPC)
Further Information More information about the project can be found in the project report. Do not hesitate to contact the persons, involved this project. Their email addresses are listed below: Roman Dornberger: [email protected] Marcel Torrent: [email protected] Ilgın Kahraman: [email protected] Jordi Segalas: [email protected]
Literature / References / Software [01] http://en.wikipedia.org/wiki/Renewable_energy; [02] Solar Atlas Catalunya; [03] Literature Review of Uncertainty of Analysis Methods (Report on the Texas Commission of Environmental Quality); [04] Microsoft Visio; [05] EPANET, www.epa.gov; [06] Energía solar fotovoltaica, 2a edición, M. Carlos Tobajas Vázquez; [07] SunnyDesign, www.sma.de; [08] AutoCad 2007
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