solar technology from germany– solar thermal, solar...
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Solar Technology from Germany– Solar Thermal, Solar Cooling and Concentrated Solar Power (CSP)AHK Germany- India (Kolkata)Industry Conference 06.05.2010
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Anton NeuhaeuserFraunhofer Institute for Solar Energy Systems (ISE)
• Motivation• Domestic Hot Water• Solar Cooling• Solar Process Heat• Concentrated Solar Power (CSP)
Solar Technology
Solar Resource
SolarWind
Biomass
Geothermal
Hydro
Annual world energy demand
© Fraunhofer ISE
Solar Radiation Potential – Global Horizontal
© DLR
Solar Thermal Power (total in operation) – World 2008 (~ 184.000.000 m2)
Europe
USA & Canada
India
Israel
RoW
China
Australia S/M-
America
Turkey
Japan
© BSW
Installed Solar Thermal Power – in Germany
© BSW
Applications for Concentrating Collectors
Tem
pera
ture
• Industrial Prozess Heat• Solar Cooling• Off-grid Electricity • Polygeneration
Medium Scale Plants
• Solar Cooling (single stage)• Low Temperature
Process heat
Vacuum TubeCPC Collectors
• Domestic Hot Water
Flat Plate Collectors
ElectricityCSP Plants
Gravity Flow (Thermosiphon)
ThermosiphonGravity Flow2-3m2 collector area100-200 l. solar storage tankCosts ~ € 1,000 – 1,500
© Solarpraxis
Typical System for Germany
Typical data for Germany(4-person household)Forced circulation5-6m2 collector area300-400 l. solar storage tankCosts ~ €4,000 – 5,000
Condensing boileroli, gasnew: wood pelletsrarely: elec. power
Flat-plate or vacuum tube collector
Solar station with controls and circulation pump
Waterstorage tank
Cold water inlet © BSW
Applications for Concentrating Collectors
Tem
pera
ture
• Industrial Prozess Heat• Solar Cooling• Off-grid Electricity • Polygeneration
Medium Scale Plants
• Solar Cooling (single stage)• Low Temperature
Process heat
Vacuum TubeCPC Collectors
• Domestic Hot Water
Flat Plate Collectors
ElectricityCSP Plants
Solar Radiation and required Cooling Load
© BSW
Solar Assisted Cooling (SAC) – Example (Hotel in Spain)
328
collectors34
5 m2absorber areaoutp
ut 274 kW
peak
3 tankscapacit
y 36,000
ltr
Auxilliary heatingoutp
ut 259 kW
110
apartementes 3 ba
rs2 restaurants
HotelBelroy
Palace
© BSW
Solar Assisted Cooling (SAC) – Example (Hotel in Spain)
© BSW
Applications for Concentrating Collectors
Tem
pera
ture
• Industrial Prozess Heat• Solar Cooling• Off-grid Electricity • Polygeneration
Medium Scale Plants
• Solar Cooling (single stage)• Low Temperature
Process heat
Vacuum TubeCPC Collectors
• Domestic Hot Water
Flat Plate Collectors
ElectricityCSP Plants
Industrial Energy Demand
© Mirroxx
Industrial Process Heat
SteamSeparator
Boiler
Industrial Process
Steam Boiler for Backup
SteamWater-Steam-Mix
Example – Roof Integrated Linear Fresnel Collector for Solar Cooling
Seville, Spain (Source:Mirroxx GmbH)
Applications for Concentrating Collectors
Tem
pera
ture
• Industrial Prozess Heat• Solar Cooling• Off-grid Electricity • Polygeneration
Medium Scale Plants
• Solar Cooling (single stage)• Low Temperature
Process heat
Vacuum TubeCPC Collectors
• Domestic Hot Water
Flat Plate Collectors
ElectricityCSP Plants
Concentrated Solar Power (CSP) - Technologies
Receiver
Parabolic Mirror
Heat Transfer System
Support Structure
© Fraunhofer ISE
Parabolic Trough und Linear Fresnel Collector Technology
Solar Tower und Dish-Stirling Technology
Source: Abengoa
CSP-Projects World Wide
• 13 GW under development and construction world wide
• 9 GW in USA,• 3,5 GW in Spain• Mostly Parabolic
Trough Technology
Summary
• Systems for a wide range of temperatures and applications available
• Growing number of installed systems world wide• German Suppliers and Research Institutes:
• Know-how covering the complete value chain • Aim: efficient and cost competitive CSP-Components
Thank you!
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Dipl.-Ing. Anton NeuhaeuserSolar Thermal Power [email protected] Institute for Solar Energy Systems ISE