Introduction Motivation Technology Outline Description Of Technology Present Scenario Of CSP In World Power Scenario Of Bangladesh Opportunities In Bangladesh Suitable Placement Of CSP Technologies Future Work & Conclusion Important References Energy crisis is the most familiar and disquieting matter. Suitable and reliable energy sources are the best solution. There are two type of energy sources: conventional energy and renewable. Due to decrement and limitation of conventional energy sources, we have to looking forward to ‘green energy’ for electricity generation.  Solar power is the conversion of sunlight into electricity, either directly using (PV), or indirectly using concentrated solar power (CSP). Photovoltaics convert light into electric current using the photoelectric effect. Concentrated solar power systems use lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam. 

1. An Overview of Concentrated Solar Power
(CSP)Technologies and its Opportunities in Bangladesh
Authors
Rabiul Islam, A. B. M. Noushad Bhuiyan, Md. Wali Ullah
Presented by
A. B. M. Noushad Bhuiyan
4th Year Student
Department of Electrical and Electronic Engineering
Chittagong University of Engineering and Technology

2. Table of Content
 Introduction
 Motivation
 Technology Outline
 Description Of Technology
 Present Scenario Of CSP In World
 Power Scenario Of Bangladesh
 Opportunities In Bangladesh
 Suitable Placement Of CSP Technologies
 Future Work & Conclusion
 Important References

3. Introduction
 Energy crisis is the most familiar and disquieting matter.
 Suitable and reliable energy sources are the best solution.
 There are two type of energy sources: conventional energy and
renewable.
 Due to decrement and limitation of conventional energy sources, we
have to looking forward to ‘green energy’ for electricity generation.

4. Motivation
 Solar power is the conversion of sunlight into electricity, either
directly using (PV), or indirectly using concentrated solar
power (CSP).
 Photovoltaics convert light into electric current using the
photoelectric effect.
 Concentrated solar power systems use lenses or mirrors and
tracking systems to focus a large area of sunlight into a small
beam.

5. Motivation(Cont.)
 The concentrated heat is then used as a heat source for a
conventional power plant.
 Most developed are the parabolic trough, the concentrating
linear Fresnel reflector, the Stirling dish and the solar power
tower.
 In all of these systems a working fluid is heated by the
concentrated sunlight, and is then used for power generation or
energy storage.

6. Technology Outline
General working diagram of CSP Technology:

7. Description Of Technology
CSP
SYSTEM
Line
focusing
Parabolic
trough
Liner
Fresnel
reflector
Point
focusing
Solar tower Solar dish

8. Parabolic Trough
 A parabolic trough consists of a linear parabolic reflector
that concentrates light onto a receiver positioned along the
reflector's focal line.
 The receiver is a tube positioned right above the middle of
the parabolic mirror and is filled with a working fluid.

9. Commercial
CSP
Parabolic
Trough
Central
Tower
Dish Stirling Fresnel
Collector
• Temp~400°C
• Line Focusing
• Linear Receiver tube
• Water consuming
• Conc. Parabolic Mirrors
• Heat Storage feasible
• Most Commercialized
• Good for Hybrid option
• Requires flat land
• Good receiver η but low turbine η

10. WORKING DIAGRAM FOR PARABOLIC TROUGH

11. Liner Fresnel Reflector
 It’s another line focusing technology. It’s also single
axis tracking mirror aligned along a north-south axis,
able to track sun from east to west .
 Different from PTC is it uses Fresnel reflector which
are flat in shape and pipe is distant from the reflection
unit.
 The pipe is connected to the steam turbine to produce
electricity conventionally by producing mechanical
torque.
 The system is easier to install, easy production, cost
effective, cheaper than other CSP system

12. Commercial
CSP
Parabolic
Trough
Central
Tower
Dish Stirling Fresnel
Collector
• Temp~400°C
• Line Focusing type
• Linear receiver
• Fixed absorber row shared
among mirrors
• Flat or curved conc. mirrors
• Commercially under
development
• Less Structures
• 5 MW operational in CA

13. SOLAR TOWER
 Uses a large field of flat, sun-tracking mirrors known as heliostats to
focus and concentrate sunlight onto a receiver on the top of a tower.
 A heat-transfer fluid heated in the receiver is used to generate steam.

14. Commercial
CSP
Parabolic
Trough
Central
Tower
Dish Stirling Fresnel
Collector
• Temp~600-800°C
• Point Focusing
• Flat Conc. Mirrors
• Commercially proven
• Central Receiver
• Water consuming
• Heat Storage capability
• Feasible on Non Flat sites
• Good performance for large capacity &
temperatures
• Low receiver η but good turbine η

15. WORKING DIAGRAM FOR SOLAR TOWER

16. PARABOLIC DISH
 Uses a mirrored dish similar to a very large satellite dish.
 The dish-shaped surface directs and concentrates sunlight onto a
thermal receiver, which absorbs and collects the heat and transfers it to
the engine generator.
 The most common type of heat engine used today in dish/engine
systems is the Stirling engine.
 The mechanical power is then used to run a generator or alternator to
produce electricity.

17. Commercial
CSP
Parabolic
Trough
Central
Tower
Dish Stirling Fresnel
Collector
• Temp~700-800°C
• Point Focusing
• Uses Dish concentrator
• Stirling Engine
• Generally 25 kW units
• High Efficiency ~ 30%
• Dry cooling
• No water requirement
• Heat storage difficult
• Commercially under development
• Dual Axis Tracking

18. Present Scenario Of CSP In World
 After introducing in 1990, CSP is getting popular
more and more.
In last seven years, Global CSP capacity has more than
5 times increasing to almost 5GW in October 2016 from
less than 1GW in 2010.
Approximately 4,810.55MW CSP power plant all over
the world is now under operation, over 1466.9MW is
under construction.

19. Present Scenario Of CSP (Cont.)
Technology
World capacity
2009(MWe) a
World capacity
2012 (MWe) b
World capacity
2016 (MWe) c
Opera-
tional
[MW]
Under
construc-
tion [MW]
Plann-
ing
phase[M
W]
Opera-
tional
[MW]
Under
Construc-
tion [MW]
Planning
phase
[MW]
Operat-ional
[MW]
Under
Construction
[MW]
Planning
Phase
[MW]
Parabolic
Trough
570 1690 5775 778 1400 8144 4109 715 530
Solar Tower 8.4 22 1514 44 17 1664 627.9 461.4 2330
Parabolic
Dish
.5 1600.08 2 1 2247 2 2.5 72.08
Linear
Fresnel
34 487 9 30 134 37.65 117 10

20. Power Scenario Of Bangladesh
Present installation capacity is 13,151MW.
Govt. plan to is to add about 11600 MW generation capacity in next
5 years
According to the United States Energy Association (USA) the
energy supply deficiency in Bangladesh is 19%.
200MW solar PV plant is going to under construction in Cox’s-
Bazar.

21. Opportunities In Bangladesh
In Bangladesh, there is abundant of solar radiation.
For CSP technology there is needed annual average
Direct Normal irradiations(DNI) 2000KWh/m².

22. Opportunities In Bangladesh(Cont.)

23. Opportunities In Bangladesh(Cont.)
 Labour cost is cheaper in Bangladesh than any other developed
countries, so 15% cost reduction might be possible.
 Raw materials of most of CSP power plants are glass and steel
sheet.
 Bangladesh has become self-sufficient in glass production. Now
glasses are being exported in many countries
 More than 400 steel re-rolling company is under operation in
Bangladesh.

24. Suitable placement of CSP technologies
 Thermal storage system makes it more preferable because it continued
operation at night time and cloudy days.
 Parabolic trough is highly developed and it deserves the most
commercial experiences.
 It is suitable for large scale power generation though it’s require large
area. In Bangladesh, it is suitable for west Bangle, hilly region, river
bank.
 Power tower technologies require high temperature producing facilities
and less land compare to parabolic trough. It is suitable in desert area of
the country.

25. Suitable Placement(Cont.)
 Parabolic Dish system is the most efficient CSP system though it
is undergoing development to make the system more cost effective.
It could use to enable an interconnected power generation system
at the multistoried building’s roof top of the mega cities.
Linear Fresnel system is cost effective than parabolic trough and
solar tower though it’s requires large land areas for setting up. It is
suitable for rural area and also in cultivable land.

26. Future Work & Conclusion
 Bangladesh is a non-oil producing country, coal reserves will last for
only the next few decades, recoverable gas will be depleted soon.
 In future solar energy will be the major energy source in Bangladesh.
 A pilot project should be taken as early as possible to verify the
feasibility of non-polluting and CO2 emission free CSP technology.
 In Bangladesh, parabolic trough is suitable for large scale power
generation.
 Solar tower power plant should be in second option by considering land
utilization. On the other hand Parabolic dish is suitable for small scale
power generation units.

27. Important References
[1] N. Noor and S. Muneer, ‘‘Concentrating solar power (CSP) and its prospect in
Bangladesh’’, 2009 1st International Conference on the Developments in Renewable Energy
Technology (ICDRET), IEEE Conference Proceedings, pp. 1-5, 2009.
[2] G. T. Machinda, S. Chowdhury, R. Arscott, S. P. Chowdhury, S. Kibaara, ‘‘Concentrating
Solar Thermal Power Technologies: A review’’, 2011 Annual IEEE India Conference, pp. 1-6,
2011.
[3] R. Wilson and J. Prange, ‘‘Concentrated solar power: What a South African company has
learned from designing, building and commercialising a Linear Fresnel Concentrated Solar
Thermal Power (CSP) plant’’, 2013 Proceedings of the 10th Industrial and Commercial Use
of Energy Conference, pp. 1-4, 2013.
[4] R.A. Manuel, ‘‘Concentrating Solar Thermal Power’’, CIEMAT-Plataforma Solar de
Almeria, Handbook of Energy Efficiency and Renewable Energy, 2007.
[5] A. Barua, S. Chakraborti, D. Paul and P. Das, ‘‘analysis of concentrated solar power
technologies’ feasibility, selection and promotional strategy for Bangladesh,’’Journal of
Mechanical Engineering, vol-44, no.2, 2015.