ENGR102_Lab8_IanHealy

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School

Oregon State University, Corvallis *

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Course

102

Subject

Electrical Engineering

Date

Jan 9, 2024

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pdf

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ENGR 102 - Design Engineering & Problem Solving Lab Exercise #1 TASK 2: make the measurements needed to generate an IV curve o Asolar panel does not do anything if it is not connected. It must have a load. In this lab, the load will be created using resistors. The resistance values you will use are listed below. Take one at a time from the closet (return each resistor to correct location prior to getting next one). o Measure the resistance and record the value in the data collection spreadsheet made for the pre-lab. Position the solar cell so it is face up, horizontal, and fully irradiated by the light source (Figure 1). Measure the voltage across the load and record the value in your data collection spreadsheet (Figure 2). o Repeat the process for seven different loads. l Resistance (ohms) L 220 218.8 \ \ \ l | 1! 2 180 3 150 4 100 5 47 6 22 7 7 Figure 2: Measuring the voltage across the load. Create an IV curve — label all key items as well as the axes. Have the instructor review when complete. Instructor initials: ‘/

ENGR 102 - Design Engineering & Problem Solving Lab Exercise #1 TASK 3: determine the maximum power point 1. What is the maximum power point? (634 79.3%) =077 walts 2. How does the value you determined compare with the published value? If they differ, what might be the reason for this? The published riax e point is )2 witfs, Owr Ncud&d valug s /€¢f it ((ub{ ée beccuse of He resivhec ufealcvv/%g‘h-@,fiﬂ oC e St Ay fecoding. 3. Determine the solar cell fill factor. Py e 'VoLs.~ iz LISLS FE = P Ve _ A -(.877)\_%7’7 m 4. What is the energy conversion efficiency (assume 800 W/m? solar input)? g9-N13= )0,057-mm -lo 087 lemh G Y4

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