heliostat

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heliostat

(hee -lee-ŏ-stat) A coelostat mirror mounted on a synchronously controlled drive mechanism so that it may reflect sunlight in a fixed direction as the Sun moves across the sky. Together with additional optical elements it is a basic component of most solar telescopes.

heliostat

[′hē·lē·ə‚stat]
(engineering)
A clock-driven instrument mounting which automatically and continuously points in the direction of the sun; it is used with a pyrheliometer when continuous direct solar radiation measurements are required.
References in periodicals archive ?
The project will use 70,000 heliostats, and the largest global thermal storage capacity of 15 hours; allowing for energy availability round the clock.
The CSP tower will top out at 260m when completed, DEWA added, and will be surrounded by 70,000 heliostats.
kWh Analytics also provides HelioStats risk management software to leading project finance investors in the solar market.
"Over the years, we have used the Torresol Energy plants as a test-bed for SENER's innovations in thermoelectric solar power, including trough collector loops, heliostats or other systems, which has allowed us to build up a critical knowledge-base to spearhead state-of-the-art technology and increase the competitiveness of CSP," said Enrique de Sendagorta, President of Torresol Energy.
This concept required an appropriate software platform for heliostats that would be highly autonomous.
Moreover, the transmission law of the EATD azimuth tracking error in solar heliostats is analyzed, a dish concentrator system using a spin-elevation double-axis tracking device is proposed, and the transmission law of the tracking error from the spin axis to the dish concentrator was studied (in Section 4.4).
Popular commercialized daylighting systems include heliostats, solar tubes, and skylights.
The mirrors, or heliostats, are designed to follow the sun in two axes and keep reflecting sunlight toward a predetermined target, in this case a water heater placed on top of a 250-meter (656-feet) tall tower that generates high-temperature, high-pressure steam.
The uniformly distributed mirrors are called heliostats. Each heliostat is oriented by a solar tracking system and reflects the sunlight precisely to the absorber.
Yuan et al., "Numerical simulation of wind loads and wind induced dynamic response of heliostats," Energy Procedia, vol.
These are intercut with a psychedelic scene of sunspots moving over a blazing orange ground--data from nasa's Solar and Heliospheric Observatory; the skyline of Mexico City buried in smog; and the sun reflecting off the mirrored heliostats at Fuentes de Andalucla's Gemasolar Thermosolar Plant.
The sunlight and thermal energy collection method adopted in MHPS's CSP system is a proprietary hybrid system combining a low-temperature Fresnel evaporator which collects sunlight while changing the angles of multiple mirror surfaces arranged on a plane, and a tower-type superheater which collects sunlight by heliostats. The result is the ability to produce higher-temperature steam at lower cost than earlier CSP systems.