1. Presented By CSCI - 6838 04\17\08 Team #6 Krishna Thathireddy
SOLAR THERMAL PLANT DESIGN AND SUITE OF TOOLS
Unsupervised lea
Presented By
Team #6
Krishna Thathireddy
Tulasi Nandigam
Soumya Garre
Shahla Khorsand
CSCI \17\08
Solar Thermal Plant

2. CSCI - 6838 Solar Thermal Plant Design
TEAM #6 c
Team Information
Mentor
Dr.Michel Izygon
Instructor
Dr.Yue
Team #6 Members
Krishna Chaithanya Tulasi Nandigam
Soumya Garre Shahla Khorsand
CSCI Solar Thermal Plant Design

3. CSCI - 6838 Solar Thermal Plant Design
TEAM #6
Customer Information
Tietronix Software Inc. ,
1331 Gemini Avenue, Suite 300
Houston, TX
Website:
“Expert knowledge, best-in-class tools and a proven methodology and process”.
Contact Person:
Dr.Michel Izygon, Ph.D.
Co-Founder,
Senior Vice President & Chief Technology Officer.
Tietronix Software Inc.
CSCI Solar Thermal Plant Design

4. CSCI - 6838 Solar Thermal Plant Design
TEAM #6
Solar Thermal Plant Overview Soumya
Introduction Soumya
Requirements Soumya
System Architecture Soumya
Process Flow Soumya
Algorithm Tulasi
Flow Chart Tulasi
Implementation Tulasi
CSCI Solar Thermal Plant Design

5. CSCI - 6838 Solar Thermal Plant Design
TEAM #6
Test Cases Krishna
Screen Shots Krishna
Implementation Issues Krishna
Solar Thermal Visualization Shahla
Applet’s Required Parameters Shahla
Applet’s Optional Parameters Shahla
Visualization Requirements Shahla
Time Line Shahla
References Shahla
CSCI Solar Thermal Plant Design

6. CSCI - 6838 Solar Thermal Plant Design
TEAM #6
Solar Thermal Plant Overview
Solar Thermal power plants are used to generate electricity from the energy of the sun.
Heliostats (mirrors) and a receiver located at the top of a tower are used.
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CSCI Solar Thermal Plant Design

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Solar Thermal Plant Overview
Tower with Receiver
Heliostats
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CSCI Solar Thermal Plant Design

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TEAM #6
Introduction
Shading occurs when a heliostat casts its shadow on another heliostat located behind it.
Blocking occurs when a heliostat in front of another heliostat, blocks the reflected suns energy on its way to the receiver.
CSCI Solar Thermal Plant Design

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TEAM #6
Problem Definition
The radial staggered arrangement ensures that no heliostat is placed directly in front of another in adjacent rings along the reflective path to the tower[1].
In this way, a reflected beam from any heliostat passes between its adjacent neighbors on the way to the receiver, therefore more energy is obtained [1].
CSCI Solar Thermal Plant Design

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TEAM #6
Requirements
User Interface enhancements
Computing the correct formulae for shading and blocking
Developing the code to implement this correct formulae by using Java 3d utilities.
Preparing a tabular form to implement the shading and blocking by varying ∆Az and ∆R between the mirrors.
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CSCI Solar Thermal Plant Design

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TEAM #6
Cont’d…
Designing and implementing the functions for generalization of 8 mirrors to 24 mirrors.
Developing the test cases for testing the program
Java 3D visualization is developed such that the applet gets the real data from the web pages of the main application.
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CSCI Solar Thermal Plant Design

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TEAM #6
Representation of 24 Mirrors
Consider the source mirror
Put the eight mirrors
around the source mirror
Calculate shading and blockings
Add sixteen more mirrors and calculate the shading
and blocking of each one. 24 22 21 18 17 8 13 14 6 ΔR 5 10 2 1 9
Source Mirror
ΔAz 4 3 12 11 7 16 15 20 19 23
CSCI Solar Thermal Plant Design

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TEAM #6
Use Case Diagram
System
Generate Grid
Calc. Solar Vector
Calc. Altitude & Azimuth
Calc. Normal to Mirror
User
Vary ∆R & ΔAZ to Calc. Shading & Blocking
View Graphic Result
Java 3D Visualization
CSCI Solar Thermal Plant Design

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TEAM #6
System Architecture
[Index.jsp
Grid.jsp
Calculate Servlet]
(Location)
CSCI Solar Thermal Plant Design

15. Process Flow TEAM #6 CSCI - 6838 Solar Thermal Plant Design
% Area of Source mirror shaded and blocked by adjacent mirrors
Altitude, Azimuth,Solar vector, Reflectors,Altitude &Azimuth, Normals
Date and Time (*error estimation)
Main Program
Solar Position Unit
User
information
Mirror and Tower Location
XML File
Mirror and Tower Specification (geometrical)
Java 3D Applet Visualization of Shading and blocking
CSCI Solar Thermal Plant Design

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TEAM #6
Algorithm
Select mirror
Convert to absolute co-ordinate system
2 Rotations
1 Translation
Find neighboring mirror positions
Projection by ray Plane ( Java3D)
Intersection using Clip ( Java3D)
CSCI Solar Thermal Plant Design

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Flowchart
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Implementation
The mirrors are placed in a radial stagger way.
The central mirror in a cell is considered as a reference mirror for calculating shading and blocking.
The distances between the mirrors are calculated with respect to the diagonal length of the central mirror.
CSCI Solar Thermal Plant Design

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Cont’d….
Calculate (x,y) coordinates of the neighboring mirrors to the central mirror in the cell.
Initially the minimal ∆R and ∆Az are calculated
where ∆R = the radius of the circular rings in the field
∆Az = distance between the centers of two mirrors.
∆Az and ∆R are varied until we get minimal shading and blocking.
CSCI Solar Thermal Plant Design

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TEAM #6
Test Cases
We have generated test cases by varying the locations (i.e., for different latitude and longitude values).
By varying the dimensions of the heliostat (i.e., length and width), we have calculated the shading and blocking values.
Test cases are generated for different values of ∆Az and ∆R.
CSCI Solar Thermal Plant Design

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Implementation Issues
Unavailability of a fully functional mirror generation package encounter additional development and research to creating a working package.
The applet was developed on an standalone machine, not causing any file system structure issue.
Integration of the applet and the web application required file system changes on client machine.
Passing the real coordinates and dimensions of the mirrors caused scaling problem for the applet to display the visualization.
CSCI Solar Thermal Plant Design

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Application
CSCI Solar Thermal Plant Design

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Plant Location
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Grid Generation
CSCI Solar Thermal Plant Design

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Results
CSCI Solar Thermal Plant Design

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Obtained Values
CSCI Solar Thermal Plant Design

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Solar Thermal Visualization
Java3D applet/application invoked on client machine.
Invoked via dynamic HTML file generated by calculate Grid servlet.
Displays a grid with source mirror, all side mirrors, and the shading of each mirror (if any) on the plane of the source mirror.
CSCI Solar Thermal Plant Design

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Cont’d…
Solar Thermal Grid with shading not crossing the center mirror: Sun Ray (0.4,0.15,-0.4)
CSCI Solar Thermal Plant Design

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Cont’d…
Solar Thermal Grid with shading crossing the center mirror:
Sun Ray (0.2,5.15,-0.4)
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Applet’s Required Parameters
Coordinates of each side mirror in 3D dimension
Coordinates of source mirror
Plane equation of source mirror
Coordinates of sun ray direction
CSCI Solar Thermal Plant Design

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Applet’s Optional Parameters
(Default values will be used if values are not passed)
Total number of mirrors (Default to 8 if no value is passed)
Rotation angle around X axis.
Rotation angle around Y axis.
Length of each Heliostat.
Width of each Heliostat.
Depth of each Heliostat.
CSCI Solar Thermal Plant Design

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Visualization Requirements
System Requirements:
Solar Thermal visualization applet requires any pop-up blocking to be disabled.
If you prefer to not disable pop-up blocking, each time you run the application, you will warned and you need to disable the pop-up temporarily.
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Cont’d…
Pre-Deployment Client Configuration Requirements
Folder:
/applets folder on the web directory and at the same level as WEB-INF
Class Files:
- applet3DViewer.class
- simpleShadow.class
Packages:
com.sun.j3d
javax.media.j3d
org.j3d.geom
CSCI Solar Thermal Plant Design

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Cont’d…
Pre-Deployment Client Configuration Requirements
Folder:
/applets folder on the web directory and at the same level as WEB-INF
Class Files:
- applet3DViewer.class
- simpleShadow.class
Packages:
com.sun.j3d
javax.media.j3d
org.j3d.geom
CSCI Solar Thermal Plant Design

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References
1) Tiltle :Multi-objective thermo economic optimisation of the design of heliostat field of solar tower power plants, Hongli Zhanga,b, Isabelle Juchlia,. 2) 3) 4)
5) 
CSCI Solar Thermal Plant Design

36. TEAM #6
Thank you!!
Questions???