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Innovation in solar thermal and its applications
Ravi KaroriaElectrotherm India Limited
ScopeScope
Sun and energySolar thermal collectorsSolar thermal collectorsNon‐concentratedConcentrated
InnovationApplicationsFuture perspectiveSummary
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Sun and energySun and energy
Temperature: 5,780 KDiameter: 1.4 106 kmDi t 150 106 kDistance: 150 106 km
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Sun and energySun and energy
22 .370,1
..4−
⊥ == mWr
Ee sun
π
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Sun and energySun and energy103W.m
2)
Absorption by the atmosphere
Irradiance (1 Absorption by the atmosphere
lar Spectral I
Sol
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Wavelength (m)
Solar thermal collectorsSolar thermal collectorsNon‐concentratedFlat Plate Collectors (FPC)( )Evacuated Tube Collectors (ETC)
ConcentratedP b li hParabolic troughFresnelReflective and refractiveLine focus and point focus
Paraboloid dishCentral receiver with heliostatsCentral receiver with heliostatsCPC (Compound Parabolic Collector)
Others
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Non‐concentrated collectorsNon concentrated collectors
Flat Plate Collector Evacuated Tube C ll t
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Collector
Concentrated collectors
Parabolic Trough
Concentrated collectors
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Concentrated collectors
Fresnel
Concentrated collectors
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Concentrated collectors
Dish
Concentrated collectors
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Concentrated collectors
Central receiver
Concentrated collectors
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Concentrated collectors
Compound Parabolic Collector
Concentrated collectors
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Innovations in solar thermalInnovations in solar thermal
Absorber coatingEvacuation for line absorbersEvacuation for line absorbersReflective surface developmentSun tracking mechanisms and electronicsSun tracking mechanisms and electronicsInstrumentation and controlThermal storageThermal storageManufacturing economicsStructure and profile optimizationSt uctu e a d p o e opt at oPiping logics and controllers for domestic systemsMaterial development
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p
Applications of solar thermalApplications of solar thermal
Low temperature (25 ˚C to 100 ˚C)Domestic hot waterDomestic hot waterRoom heatingAir dryingCookingSwimming pool heatingW hiWashingSterilization
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Applications of solar thermalApplications of solar thermal
Medium temperature (100 ˚C to 250 ˚C)Air‐conditioningAir conditioningProcess heatingFood and beveragesChemical and pharmaceuticalsTextilesDairiesDryingCoating and surface treatment
D li tiDesalinationSaturated steam generation
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Applications of solar thermalApplications of solar thermal
High temperature (250 ˚C onwards)Thermal power generationThermal power generationProcess heatingFurnaces
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Future perspectivesFuture perspectivesOpportunities in solar thermal are immense.Combating the energy crisis the world needs to go farCombating the energy crisis, the world needs to go far more on the way of solar thermal.Solar thermal technology can be the best source amongst all renewable energies for the countries like India due to the consistency of solar resource.Solar thermal power generation is more efficient powerSolar thermal power generation is more efficient power generation than photovoltaic today.Government can enforce some policies to use solar thermal equipments in residences so that they can become at least partially energy independent.It promises a bright future for a cleaner and greener world
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It promises a bright future for a cleaner and greener world.
Wrap up…Wrap up…
Questions ? ? ?
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Thanking you…
Ravi Karoria
Thanking you…
Ravi KaroriaManager – Solar ThermalElectrotherm India LimitedElectrotherm India Limitedwww.etrenewables.com / [email protected]
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