Clean Energy Technologies

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TECHNOLOGY

SOLAR COLLECTOR MIRROR:

 

The Solar Collector Mirror (SCM) is a light weight composite metallic mirror with high total solar reflectance is invented, designed, developed and patented in U.S.A and Worldwide by Mr. Khurram K. Nawab and Mr. Rashid Ali of US Clean Energy Technologies, Inc. (UCE). SCM is a result of pioneering research in the metal composite technology with a special innovative and patented coating. UCE brings this innovation to CSP, CPV and BMPV (Smart Mirror™ PV) systems that are superior to the conventional glass mirrors technology being currently used which is heavy, expensive and highly breakable.


The other patents of Khurram K. Nawab and Rashid Ali, in the field of clean energy are:

  • • Solar Collecotor Mirror
  • • Receiver Tube "Helios"
  • • Smart PV System™.
  • • Solar Hydro electric Power system.
  • • PBB Green power system.

 

 

SCM Advantages:

 

  • • Highly durable exterior grade core.
  • • Features phenomenal flatness
  • • Low maintenance.
  • • Mirror - Hydrophilic Principle (Self Cleaning Property)
  • • Easier handling, packaging and shipping
  • • Concentration full range UV, visible, NIR and IR (380 µm to 2400 µm)
  • • Light weight
  • • Retains its shape
  • • Mirror are mass produced
  • • Unbreakable Mirrors

 

 

COST COMPARISON

 

CONVENTIONAL GLASS MIRROR SYSTEM   UCE RENEWABLE ENERGY SYSTEM
COST 4 TO 5 MILLION USD PER MW COST 3 to 3.5 MILLION USD PER MW

 

 

KEY ADVANTAGES of the PRODUCTS of USC:

 

CONVENTIONAL GLASS MIRROR SYSTEM   UCE RENEWABLE ENERGY SYSTEM
REFLECTOR PANEL HEAVY MIRRORS - 10 KG / M2 REFLECTOR PANEL LIGHT METAL MIRRORS – 3 KG / M2
Difficult to retain parabolic shape

Requires extensive support frame







SCM retains reflectivity (90-95%) and parabolic shape over a period of 20 years

Simple substrucutre support frame required

Savings of 200% in weight, substrantial savings in cost and higher efficiency

 

 

 

SUB FRAME, HYDRAULICS & HEIGHT

 

CONVENTIONAL GLASS MIRROR SYSTEM   UCE RENEWABLE ENERGY SYSTEM
HEAVY SPACE FRAME LIGHT WEIGHT SUB FRAME
HYDRAULICS REQUIRED HYDRAULICS NOT REQUIRED
NEED HEIGHT DUE TO HYDRAULICS LOW HEIGHT




 

 

SOLAR RECEIVER TUBE & SWIVEL JOINTS

 

CONVENTIONAL GLASS MIRROR SYSTEM   UCE RENEWABLE ENERGY SYSTEM
SOLAR RECEIVER TUBE MOVING WITH SWIVEL JOINTS SOLAR RECEIVER TUBE FIXED WITHOUT SWIVEL JOINTS
SWIVEL JOINTS TWO FOR EVERY TROUGH SWIVEL JOINTS NOT NEEDED
Solar receiver tube placed high

Entire trough including the solar receiver is rotated using complex hydraulics.

This requires thousands of expensive swivel joints which require high maintenance.



Solar receiver tube is fixed at the bed of the concave

A row of 9 troughs can be moved using a small motor of 0.33 HP / 246 Watts

System is capable of reaching temperatures over 400°c and a steam pressure of over 60 bar.

 

 

 

ROTATION & TRACKING SYSTEM

 

CONVENTIONAL GLASS MIRROR SYSTEM   UCE RENEWABLE ENERGY SYSTEM
TRACKS FROM BELOW USING HYDRAULICS & HEAVY MOTORS USES ARCHIMEDES PRINCIPLE.
LARGE MOTOR REQUIRED TO MOVE STANDARD TROUGHS. SUB ARRAY OF 9 TROUGHS MOVED USING A SMALL MOTOR.
Archimedes said “ Give me lever and a place to stand and I will move the world ”
US Clean Energy uses the Archemedes lever principle that anything that can be moved from above will need less torque.
ABTI Tracking Circuit Gear Motor Drum, Pipe & cable Tracking Big Wheel

 

 

INSTALLATION TIME

 

CONVENTIONAL GLASS MIRROR SYSTEM   UCE RENEWABLE ENERGY SYSTEM
ON SITE INSTALLATION TIME 16 TO 18 MONTHS PER MW ON SITE INSTALLATION TIME 12 MONTHS
The US Clean Energy Solar system can be preassembled at site and brought to site for installation.

 

 

OTHER KEY ADVANTAGES

 

CONVENTIONAL GLASS MIRROR SYSTEM   UCE RENEWABLE ENERGY SYSTEM
LAND REQUIRED 3.5 to 4 ACRES / MW. DUE TO LOW HEIGHT & REDUCED SHADOW EFFECT
LAND REQUIRED 3 ACRE / MW
SPACE BETWEEN TROUGHS LARGE SPACE DUE TO HIGHER HEIGHT SPACE BETWEEN TROUGHS LOW SPACE DUE TO LOW HEIGHT
EXTERIOR WARRANTY 15 TO 20 YEARS EXTERIOR WARRANTY 25 YEARS

 

 

COLLECTOR EFFICIENCY – UCE RENEWABLE ENERGY VS STANDARD TROUGH

 

The ray-tracing program UCE Renewable Energyp.exe calculates the trajectories of the sun’s rays and the radiated rays from all the surfaces in the collector. The table above gives collector efficiency between UCE Renewable Energy Smart Trough and a standard trough, showing UCE Renewable Energy is less sensitive to tracking errors than standard troughs.

 

DEGREES OFF CENTER ( DOC )
UCE ( % )
STANDARD TROUGH ( % )
0
81.2
81.1
0.5
81.2
80.2
0.7
80.2
76.2
0.8
75.1
59.2
1
64.5
29
1.2
53
0
1.5
38.4
0

 

 

MAINTENANCE AND CLEANING

 

 

  • • Regular and constant velocity
  • • Adjustable water pressure & flow rate
  • • Mechanical Cleaning with Rotation brush
  • • Water recycling ( Recovery Filtration and Reuse)
  • • Drying with high flow rate of air
  • • Remote Radio controlled panel
  • • CCTV cameras
  • • Ability to work in adverse conditions
  • • Low water consumption
  • • Cleaning of the top and bottom of the parabola same time
  • • Simultaneous cleaning of receiver tube
  • • Elimination of Swivel joints greatly reduces the complexity of Maintenance operations and breakdown time.