SOLAR THERMAL TECHNOLOGIES FOR POWER GENERATION
BY
S.K.Singh
Scientist F
Solar Energy Centre
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Parabolic Trough Solar Electric Generating
System (SEGS)
Central Receiver Power Plant.
Dish Sterling System
Solar Chimney Power Plant
Solar Pond Power Plant
Temperature and concentration ratio of the various solar
thermal collector technologies
Technology
T (°C)
Concentration ratio
Tracking
Flat plate collector
30–100
1
-
Solar pond
70–90
1
-
Solar chimney
20–80
1
-
Evacuated tube
collector
90–200
1
-
Non imaging
trough
90–200
2
One-axis
CLFR
260–400
8–80
One-axis
Parabolic trough
260–400
8–80
One-axis
Heliostat field
500–800
600–1000
Two-axis
Central receiver
Dish concentrators
500–1200
800–8000
Two-axis
Technology option
Cost break-up of 50 MW Solar
thermal power plant
Parabolic trough
Trough without Evacuated
Receiver
Wednesday, October 13, 2010
10
Arun Solar Dish
Source: Solar Thermal Systems for Industrial process applications Dr. Sirish Kedare
Wednesday, October 13, 2010
11
Factor influencing Solar Concentrated
Technology
Direct normal
Irradiance
(DNI)
Ambient
Temperature
EFFICIENCY
Wind
Velocity
Latitude
Effect
Required
Temperature
Ta- Td / DNI
Latitude Effect
Concentrator trough.
Concentrator trough.
Solar trough
Flat Plate Collector
Concentrating collectors
Non imaging collectors: Compound parabolic
concentrator (CPC)
20
Concentrating collectors
Performance
21
Concentrated solar power plant using
parabolic trough design
Concentrated solar power plant
using parabolic trough design
Central Receiver Power Plant
Central Receiver Power Plant