Monday, March 24, 2008

LUZ II DPT

 

 

 
 
LUZ II DPT
DPT 550C
HELIOSTATS
- General
- Drive
- Structure
- Foundations
- Mirrors
- Gluing
RECEIVER
  LUZ II DPT  
 






LUZ II's proprietary, hybrid, solar-gas powered generating technology, Distributed Power Towers (DPT), is significantly more cost effective than any other solar thermal technology.
LUZ II's project-ready, Generation One technology, (DPT 550), produces reliable, peak power electricity by using solar energy to create superheated steam.

LUZ II's DPT technology consists of a number of solar clusters, each of which includes a power tower surrounded 3600 by an array of heliostats. Heliostats are flat, glass mirrors which track the sun and reflect sunlight onto a receiver, which is located on the top of a power tower. Power towers are linked together by pipelines to a central location where electricity is generated and sent to a power grid.

The DPT 550 technology heats water to superheated steam at a temperature of 5500 – 5650  C. A high efficiency steam turbine converts the superheated steam to electricity, which is sent to a power grid. The DPT 550 technology is more than 40% efficient in thermal to electric conversion. Both 100 MW and 200 MW power plants are currently being designed.

TECHNOLOGY COST COMPARISON:

  SEGS 6
(Original Luz parabolic trough design)
Optimum Trough
(Improved parabolic trough design)
DPT 550
(LUZ II superheated steam technology)
Temperature(C)  370 C  400 C  550 C
Solar to Thermal Efficiency   35%  40%  50%
Gross Thermal to Electricity Efficiency   37%  39%  43%
Parasitic Power   14%  12%  5%
Solar to Electrical Efficiency   11%  14%  20%
Relative Cost Per kWhr   100%  90%  70%






 

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