EME 810
Solar Resource Assessment and Economics

2.1 Learning Outcomes

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By the end of this lesson, you should be able to:

  • identify and apply the Earth-Sun Angles and the relations/equations between Solar Time and Watch Time (Standard/Daylight Savings);
  • identify and apply the Observer-Sun Angles and be able to create a Sun Chart for shading analysis linked with the SAM software;
  • identify the Collector Angles used to describe the orientation of a collector surface relative to the moving Sun (fixed or tracking) for power output analysis linked with the SAM software;
  • list the important roles of geospatial relations to the three-part goal of Solar Energy Design.

What is due for Lesson 2?

This lesson will take us one week to complete. Please refer to the Course Syllabus for specific timeframes and due dates. Specific directions for the assignments below can be found in this lesson.

Lesson 2 Assignments
Required Reading:

SECS, Chapter 6 - Sun-Earth Geometry

SECS, Chapter 7 - Applying the Angles to Shadows and Tracking

SECS, Chapter 1 - Introduction, Communication of Units and a Standard Solar Language

You might be wondering, "What about Chapters 3-5?" Feel free to read Ch 3-4 for review materials on light physics and heat transfer. We will return to Ch 5 in Lesson 3.

W.A. Beckman, J.W. Bugler, P.I. Cooper, J.A. Duffie, R.V. Dunkle, P.E. Glaser, T. Horigome, E. D. Howe, T.A. Lawand, P.L. van der Mersch, J.K. Page, N.R. Sheridan, S.V. Szokolay, G.T. Ward (1978). Units and symbols in solar energy. Solar Energy 21, 65–68.

To Do:

Learning Activity: Shadow diagrams with Sun Charts

Discussion: Reflection on time conversions

Quiz (see Canvas)

Engage in all Try-This and Self-check activities (not graded).

Topics: Directionality of light: source to sink

Solar Time vs. Watch Time

Sun-Earth relations

Sun-Observer relations

Collector orientation and shading effects

Questions?

If you have any questions, please post them to the Lesson 2 General Questions and Comments Discussion Forum. I will check these forums regularly to respond. Feel free to go through the comments and post your own responses if you are able to help out a classmate.