Solar Cell measurement Trainer.
5.1    Technical Description of the Trainer System
The Solar cell measurement trainer system must include the following descriptions or functions:
•    Trainer with four solar cells and bypass diodes that can be freely interconnected
•    Regulated Peltier module for controlling the solar cell temperature
•    Adjustable illuminance
•    Software with tutorials and data on load profiles for recording characteristic curves
•    Be able to study physical behavior of solar cells under varying illuminance and temperature
•    Recording of current-voltage curves
•    Calculating current strength and achievable output
•    Illustrate how illuminance and temperature affect the curves
•    Able to Interconnect solar cells in parallel and series connection
•    Able to study the effect of bypass diodes
•    Able to investigate Power degradation due to shading
5.2    Technical Specification of Trainer
The trainer must include the following technical specifications:
•    Trainer for solar cell measurements
•    Four mono crystalline silicon solar cells
•    Lighting unit with adjustable illuminance
•    Backing for solar cells with Peltier module for regulating temperature
•    Patch panel with bypass diodes and adjustable load resistance for selectable types of connection with individual cells
•    Function for automated measuring of characteristic curves
•    Reference cell as illuminance sensor
•    Lab VIEW software with operating status display, tutorial feature and data acquisition via USB, running under Window 7 or Windows Vista
•    Technical data:
o    Cell type: mono crystalline
o    Cell size: 125x125mm
o    Typical characteristics of a cell:
    fill factor: 76%
    max. output: 2,45W
    current at max. output: approx. 4,8A
    voltage at max. output: approx. 0,5V
    short-circuit current: approx. 5,4A
    open-circuit voltage: approx. 0,6V
o    Lighting unit: 16x 35W
o    Dimensions and Weight
    Dimension LxWxH: approx. 1610x800x1480mm
    Weight: approx. 130kg
o    Required for Operation: 230V 50Hz
o    Scope of Delivery:
    1 trainer
    1 cable set
    1 Lab VIEW software CD + USB cable
    1 set of instructional material

5.3    Figurative description of the Trainer System
An equivalent resemblance of the solar thermal energy Trainer system is indicated in Figure 5.

Figure 5: Equivalent figurative description of the solar cell measurement trainer