Dec 16, 2016 - Outlines. ⢠The Current Energy Situation in Libya. ⢠The Renewable Energy Technologies. ⢠The possibility of the electrification of University of.
Going Green: The Role of Renewable energy in Reconstructing University of Benghazi
Ashraf Khalil, PhD Electrical and Electronics Engineering Department 12/16/2016
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Outlines • The Current Energy Situation in Libya. • The Renewable Energy Technologies. • The possibility of the electrification of University of Benghazi using Renewable Energy Sources. • The advantages • How to reach our Goal?
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The Current Energy Situation in Libya • Libya relies on the oil and the gas for electricity production. • The demand will increase in near future. • More oil and gas consumption → reduction in the country revenue. • Libya should use its Renewable sources Sooner or Later.
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Figure 1
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Renewable energy Technologies
Solar energy
Wind Energy • The wind rotates the blades of the turbine which is attached to generator.
• Relies on the Photoelectric effect to generate electricity. 12/16/2016
Average solar radiation in Libya is around 7.5 kWh/m2/day with about 3000 to 3500 sunshine hours per year 4
PV Systems • PV system consists of: • Solar Panels, Batteries, DC/DC or DC/AC converters and control unit.
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A PV system
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Wind Energy Conversion System • The blades. • The Nacelle which contains the generator, AC/DC converter or transformer.
A wind turbine 12/16/2016
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A wind energy conversion system
Hybrid Renewable Energy System • The hybrid system has more than one renewable energy source. • Very suitable!.
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A hybrid renewable energy system
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Renewable Energy Potential in Libya Benghazi Tripoli Ejdabia Jalo Kufra Gadamus Sebha Shahat
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k Wh/ m 2 / day
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Average wind speed at 10 meter Average wind speed at 50 meter Average wind speed at 100 meter
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Wind Speed, (m/s)
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5 2
4 0
Tripoli
Sirt
Ejdabia Benghazi Derna
Tobroq Shahat Gadamas Sebha
Jalu
Kufra
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Jan Fab Mar Apr May Jun
Jul
Aug Sep Oct
Nov Dec
The monthly solar radiation in different cities in Libya
The monthly average wind speed in different cities in Libya 40
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Winter Winter
Temperature, C
The load profile and the average temperature throughout the year
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4.5
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5.5
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Max Laod, MW
Summer 35
3.5 12
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What Renewable Energy will Bring to UOB? • • • • • •
Secure Energy Source. Energy Saving Sustainable Buildings Develop experts in renewable energy. Development of training Contribute to the RE penetration in Libya. • Research and Development. 12/16/2016
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The Proposed PV and Wind Systems • University of Benghazi has very large unused surface space that can be used for Photovoltaic installation. • Additionally the university has large unused land space. • The roof of the building are very suitable for PV installation. • To generate 1 kW we require around 10 m2. 12/16/2016
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Example: The Faculty of Engineering Each building could generate around 100 kW, which makes the total generated power around 1.2 MW 1) There is no shading, 2) The PV panels can be easily oriented to face the sun for power maximization, 3) Less wires can be used.
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Aerial view of the buildings in the faculty of engineering
LED solar street light11
Small Wind Farm. • The unused spaces can be used for installing medium scale wind turbines.
1 MW wind turbine has a diameter of 48 m, the distance between the turbines will be in the range (144 m- 480 m). Rule of thumb: 10 to 15 MW requires around 1 km2 12/16/2016
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Other Possibilities
Wind farm site selection requires some peculiarities. The most important characteristics of the site are: open land without obstacles, sufficient wind, and a smooth surface area.
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13 Aerial view of the UOB campus at Garyounis
How Long Does it Take? • To install 10-50 MW wind farm, it takes from 2 to 6 Months! • A standard wind farm of 20 turbines will extend over an area of about 1 square kilometer.
How Much Does it Cost? • System Planning and Design. • Feasibility Study. • The outcomes of the project. 12/16/2016
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Design of PV System for University of Benghazi Calculate the Energy Requirements for the University Buildings Estimate the Size of the PV system and the number of wind turbines Feasibility Study 12/16/2016
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The Proposed UOB Renewable energy Plan • • • •
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reduces the upfront cost project fund opportunities updated for the latest technologies the experience with this new technology will have the enough time to mature
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Cost? • In simple terms the cost of the system is given by:
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The experience curve of the PV module
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Difficulties we may face • In developing countries renewable energy is still suspicious! • The system may have a large upfront cost. • The lack of weather data. • Electricity subsidizing.
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University of Omar Al-Mokhtar
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Example: Masdar City • Masdar City is a project initiated in UAE (2006). • Promote the investment in renewable energy Masdar institute of science and technology is responsible for the planning, research and development. Masdar receives cooperation from MIT.
1,582 Acres 12/16/2016
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Summary • • • • • • 12/16/2016
Provide electricity. Create R & D. Create Awareness among people. Save the Country resources. Local and international reputation. Attract Industry 21
