Case 13251

Solar Power Tower with Direct Absorption of Solar Radiation in a Salt Bath with Nanoparticles

Keywords:

Solar power tower, Nanoparticles, Salt bath, Fluoride and Chloride

Applications:

New generation of solar power towers

Problem:
  • High heat loss of current solar boilers
  • High capital costs in building heavy solar boilers

Technology:

Light from the collecting mirrors is reflected by mirrors in the solar power tower to an insulated salt-filled tank on or under the ground. The focused light strikes a transparent fluoride or chloride salt bath containing nanoparticles. Fluoride and chloride can operate at temperatures significantly above 10000C. Most of the light enters the molten salt and is absorbed by nanoparticles within the salt. The use of nanoparticles allows controlled bulk heat absorption rather than heat absorption on a heat transfer surface. The salt bath both collects and stores the energy.

Advantages:
  • Higher efficiency
  • Low capital costs

Inventors:

Intellectual Property:

US Patent Application 12/886039 filed September 29, 2010

US Patent Application 12/886052 filed September 20, 20120

PCT Patent Appliation PCT/US2010/049474 filed September 20, 2010

Publications:

N/A

Related Cases:

13283: Device for Tactile Sensing and Surface Metrology

13728: Concentrating Solar Power Receiver, Storage Tank, and the Salt Bath with Nanoparticles

14322: CSPonD: Concentrated Solar Power on Demand

14620: Site Selection for Hillside Central Receiver Solar Thermal Plants

Last revised: March 1, 2012

>>List of MIT Energy IP<<