Page 21 - Renewable Energy Devices and System with Simulations in MATLAB and ANSYS

8 Renewable Energy Devices and Systems with Simulations in MATLAB and ANSYS ®
®

Solar–thermal-powered turbine Power grid
High-pressure,
heated fluid Generator Transformer
ω υ ge
G

Release fluid
υ ge
Heat
(a)

Concentrated Receiver
sunlight (generates heat)

Heating loads
Heat storage
Valve
Sunlight Steam turbine
ω
Valve Release
fluid
Reflective media
(e.g., mirrors)
Pump Condense and
Solar thermal tower
(b) cooling
Heating loads
Heat storage
Sunlight Valve
Thermal–chemical
reaction
Thermal
fluid pine Valve Steam turbine
ω
Reflective media
(e.g., mirrors)
Valve Release fluid

Condense and
(c) cooling

FIGURE 1.11 Concentrated solar power (CSP) systems: (a) electric power generation system, (b) central
solar tower as a receiver for heat generating, and (c) sunlight concentrated by a parabolic trough line structure,
where the heat can also be utilized to power thermal–chemical reactions depending on the fluid type.

such large-scale deployments, ongoing research and development efforts are very much needed with
a major thrust to ensure economic feasibility. Larger devices and power plants hold the promise of
the economy of scale, including lower cost of energy.
An example of technological achievement is represented by the completion and installation in
early 2014 of the first Vestas V164, the world’s most powerful wind turbine. With an 8 MW rated
power generator and a three-bladed rotor having a 164 m diameter, this record-setting turbine is
primarily dedicated to the development of large offshore wind farms. The 20 × 8 × 8 m nacelle,
which weighs together with the hub approximately 390 tons, includes the gearbox, medium-speed