A User's Manual for DELSOL3 - prod.sandia.gov - Sandia National ...
A User's Manual for DELSOL3 - prod.sandia.gov - Sandia National ...
A User's Manual for DELSOL3 - prod.sandia.gov - Sandia National ...
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Spillage: The radiation which is reflected from the concentrator subsystem<br />
but which misses the receiver’s absorber surface.<br />
Storage Capacity: The amount of net energy (MWth-hr) which can be de-<br />
livered from a fully charged storage subsystem.<br />
Storage-Coupled: The use of an energy storage system to permit operation<br />
of the end-use system during periods when solar energy from the receiver cannot<br />
satisfy the load.<br />
Stow: A position or act of reaching a position of safe storage <strong>for</strong> the he-<br />
lios tats.<br />
Sun Position: The azimuth and elevation angles <strong>for</strong> specifying the direction<br />
to the central ray from the sun.<br />
Sunshape: The relative intensity of solar energy across the solar disk.<br />
Ten Megawatt Electric (10 MWe) Solar Thermal Central Receiver<br />
Pilot Plant (also known as Solar One): A prototype solar thermal central re-<br />
ceiver power system near Barstow, Cali<strong>for</strong>nia. The plant has been operating since<br />
1981 with the capability of <strong>prod</strong>ucing 10 MWe of electricity <strong>for</strong> use in the South-<br />
ern Cali<strong>for</strong>nia Edison utility system.<br />
Thermal Energy Storage Subsystem: A rechargeable unit capable of<br />
storing thermal energy <strong>for</strong> later use. Examples are storage as sensible heat in ni-<br />
trate salt, sodium, rocks, water, or oil.<br />
Thermocline Storage: The storage of thermal energy in which the hot and<br />
cold media are in the same container (tank) and which uses the thermocline prin-<br />
ciple. Such storage relies on a lower density hot fluid floating atop a higher den-<br />
sity cooler fluid of the same type, or on hot solid material being separated from<br />
cooler solid materials by a thermal gradient as in air-rock, air-ceramic-brick ap-<br />
plications. The thermocline is the zone or layer in which the vertical temperature<br />
profile changes rapidly.<br />
Trace Heating: See Heat Tracing.<br />
Tracking Systems: The motors, gears, and actuators that are instructed by<br />
computer command to maintain a proper heliostat orientation with respect to the<br />
sun and receiver positions.<br />
Turbine-Generator: The component which converts thermal energy into<br />
electrical energy.<br />
Working Fluid (also known as Heat Transport Fluid): The fluid that<br />
per<strong>for</strong>ms work <strong>for</strong> the end-use system-<strong>for</strong> example, the steam in a steam turbine-<br />
generating system, hot gas in a Brayton cycle gas turbine, or fluid providing ther-<br />
mal energy <strong>for</strong> a process heat application. The Working Fluid may or may not be<br />
the Receiver Fluid. See Receiver Fluid; Heat Exchanger.<br />
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