prospects of wind energy in bangladesh dr. abdul hasib chowdhury bangladesh university of...
TRANSCRIPT
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7/28/2019 Prospects of Wind Energy in Bangladesh Dr. Abdul Hasib Chowdhury Bangladesh University of Engineering and Technology
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Wind Power Prospects
in BangladeshA. Hasib Chowdhury, PhD
Dept. of EEE, Bangladesh University ofEngineering and Technology
September 2012
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This Presentation
About Bangladesh
Wind speed study
Wind data
Wind power generation in Bangladesh
Windpumping in Bangladesh Potential users
Problems and limitations
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Bangladesh
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Bangladesh contd.
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Bangladesh contd.
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Bangladesh contd.
Elevation map ofBangladesh
[Renewable Energy, 29(5), April 2004]
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Wind Speed Study
Little systematic wind speed study
Data collected by meteorology department meant for
weather forecasting Insufficient for determining wind energy potential
1982 Early study report from 30 yearsmeteorological data
Wind speeds in Chittagong and Cox's Bazar districtspromising
Only coastal area and bay islands assumed promising forelectricity generation
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Wind Speed Study contd.
1995 Measurement in Patenga (Chittagong) at aheight of 20 m
Wind speed higher than values obtained by meteorological
department
1996-97 Study at seven coastal sites at a heightof 25 m by Bangladesh Centre for Advanced Studies
1996-97 Study with technical assistance from GTZ
2001-2002 Bangladesh Council of Scientific andIndustrial Research (BCSIR)
2004 SWERA study
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Wind Data contd.
Wind speed (m/s)data set for 30 melevation and
typical countrysideterrain ofBangladesh
[Renewable Energy, 29(5), April 2004]
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Wind Data
Wind speed at 25 m height measured by BCAS
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Wind Data contd.
Wind speeds higher in coastal areas
Exhibit strong seasonal cycle
lower in September to February and higher inMarch to August
Exhibit a diurnal cycle
peaking in afternoon and weakest at night
Wind speed is much higher in summer (dueto monsoon wind) than in winter
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Wind Data contd.
Monthly variation of wind speed for five selected sites
A. K. Azad, M. M. Alam, Dept. of Mechanical Engg. BUET, 2012
Max. velocity5.97 m/s inAugust inKuakata
Min. 1.20 m/s
in Decemberin Rauzan
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Wind Data contd.
A. K. Azad, M. M. Alam, Dept. of Mechanical Engg. BUET, 2012
Frequency distribution of wind speed at Kuakata from Jan to Dec.
Frequency ofwind speed519 m/sfrom April toSept.
Suitable forelectricitygeneration
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Wind Data contd.
Velocity Duration Curve for Kuakata
Wind velocitythroughout theyear
68.7% time 4m/s or above
45% time 5m/s or above
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Wind Power Generation
in Bangladesh Only two wind power generation
projects in Bangladesh
Muhuri Dam wind power project (2005)
Kutubdia Island wind power project(2007-08)
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Wind Power Generation
in Bangladesh contd. Muhuri Dam
Project (2005)
4 X 225 kWVestas turbine(diameter 27 m)
First grid-connectedwind plant in
Bangladesh Estimated annual
production: 2 GWh (foran equivalent of 2,500hours of full load/year)
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Wind Power Generation
in Bangladesh contd.KutubdiaIsland
Wind battery hybridplant
50X20 kW turbineson 50ft tower
WTG : China
WTGs charge1,000, 12V 200AHbatteries
11KV transmission
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Wind Power Generation
in Bangladesh contd.Cyclone Sidrcrossed the
coastal areas ofBangladesh(2007)
15ft tidal surgedamaged
equipment andsupplies
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Wind Power Generation
in Bangladesh contd. 11 small wind turbines in various
coastal sites installed by BRAC
Grameen Shakti 2 wind generators of 300 W and 1 kW at
a Chakoria Shrimp Farm
4 small wind generators (3x1.5 kW + 10kW) in Barguna
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Windpumping in
BangladeshBCAS installed awindpump in Patenga
(Chittagong)40 ft high tower with 12blades rotor
Average water outputbetween November andJanuary ~8000 liters/day
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Wind pumping in
Bangladesh contd. Local Government Engineering
Department set up number of 27 ft
high wind pumps at Tangail, Kustia,Cox's Bazar
Indigenously made, 0.5 h.p. (385W) ata wind speed of 4m/see
Output - 25 liter/minute at wind speedof 3.2 m/see
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Potential Users
Wind turbines driven pumps for drinkingwater and irrigation
Industries along the Bay of Bengal coastline Shrimp/fish/poultry farming, fish processing, ice
making, salt production, fish-mill industries,hatcheries
Many industries in areas without electricalgrid, presently use diesel generator
Number of islands far from grid
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Problems and Limitations
Lack of sufficient and reliable data
Absence of comprehensive policy
framework
Lack of commitment on the part of thegovernment
Lack of human resource for windenergy management