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Solar Thermal Concentrating Technology

Solar Thermal Concentrating Technology

Solar Thermal Concentrating Technology ( Solar Thermal Magazine )

At the end of 2011 a team from the UC Merced California Advanced Solar Technologies Institute (UC Solar) studied the impact of various design of solar thermal collectors on their energy efficiency.  The report found that:

Thermodynamically efficient optical designs are dramatically improving the performance and cost effectiveness of solar concentrating ( CSP)  and illumination systems.

Project Highlight –  Solar  Thermal Collectors

The UC Merced team their own solar collector named the External Compound Parabolic Concentrator (XCPC)

XCPC features include:

  • Non‐tracking design
  • 50% thermal efficiency at 200 C
  • Installation flexibility
  • Performs well in hazy conditions
  • Displaces natural gas consumption and reduces emissions
  • Targets commercial applications such as double effect
  • absorption cooling, boiler preheating, dehydration,
  • sterilization, desalination and steam extraction

Testing Criteria included:

  • Efficiency (80 to 200 °C)
  • Optical Efficiency (Ambient temperature)
  • Acceptance Angle
  • Time Constant
  • Stagnation Test

XCPC  Applications Possible Applications include:

  • Absorption Chillers
  • Desiccant Cooling
  • Heat Driven Electrical Power
  • Generation
  • Steam Cycle Based Products
  • Stirling Cycle Based Products
  • Heat Driven Water TreatmentTechnology
  • Membrane Distillation
  • Heat Driven Industrial Process

To read the whole paper click here

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ST Staff Writers
ST Staff Writers
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