Stories tagged stirling

Jul
19
2009

Two cylinder Stirling engine: Alpha type Stirling engine. The expansion cylinder (red) is maintained at a high temperature while the compression cylinder (blue) is cooled. The passage between the two cylinders contains the regenerator.
Two cylinder Stirling engine: Alpha type Stirling engine. The expansion cylinder (red) is maintained at a high temperature while the compression cylinder (blue) is cooled. The passage between the two cylinders contains the regenerator.Courtesy Zephyris
Four newly designed solar power collection dishes called SunCatchers™ were unveiled at Sandia's National Solar Thermal Test Facility. The new dishes are the next-generation model of the original SunCatcher system. Designed for high-volume production, ease of maintenance, and cost reductions, the dishes could be in commercial service by 2010. The projects are expected to produce 1,000 MW by the end of 2012. One megawatt powers about 800 homes.

Better and cheaper solar conversion

SunCatcher™ power system
SunCatcher™ power systemCourtesy Randy Montoya
Last year one of the original SunCatchers set a new solar-to-grid system conversion efficiency record by achieving a 31.25 percent net efficiency rate, toppling the old 1984 record of 29.4.

Source: New SunCatcher™ power system unveiled at National Solar Thermal Test Facility, Sandia News release.