1 / 12

Wind Load Effects on PV Panels: An In-Class Presentation Overview

This presentation explores the effects of wind loads on photovoltaic (PV) panels, particularly focusing on different angles and their impact on aerodynamic forces. Conducted in March 2011 by Team 12, it highlights the importance of optimizing the tilt angle (ideal at 51°) and how ballast can be affected by wind direction, panel height, and proximity to the ground. The study employed wind tunnel testing and Computational Fluid Dynamics (CFD) simulations to analyze these factors systematically. Results aimed to improve understanding for more efficient solar panel installations.

graceland
Télécharger la présentation

Wind Load Effects on PV Panels: An In-Class Presentation Overview

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. TEAM 12 P.V. Panel wind load effects In-Class Presentation March 2011 Arman Hemmati , Brady Zaiser, Chaneel Park, Jeff Symons, Katie Olver

  2. Introduction – Problem • Most efficient sun capture at 51° • Higher angle means greater aerodynamic forces • Ballast required to hold the panel down • Too much weight for the roof? • Want to better understand wind loads on PV panels: • Wind Tunnel Testing • Computational (CFD) Analysis

  3. Objectives – Functional Requirements • Effect of Wind Direction • Front or back • Effect of Panel Tilt • Preferred angle is 51° • Proximity of Panel to the Ground • Should reduce drag to a point

  4. Wind Tunnel – Test Apparatus

  5. Wind Tunnel – Testing Parameters • Wind direction • How does the force on the panel change depending on the wind direction? • Front, back • 2 levels

  6. Wind Tunnel – Testing Parameters • Panel angle • How does the force on the panel change as the angle increases? • In Calgary the ideal angle is 51° • Testing at: • 35°, 50°, 65° and 80° • 4 levels

  7. Wind Tunnel – Testing Parameters • Panel height • How does the force on the panel change as the distance between the ground and the bottom of the panel increases? • Unable to use CFD for this • Testing at: • 0, 1”, 2”, …, 6” • 7 levels

  8. Wind Tunnel – Testing Procedure • How many runs? • 2∙4∙7 = 56 runs per replication • 2 replications = 112 runs • Randomize run order • Lots of set-up between runs • How long will it take? • 5 min/run + daily set-up • Estimate 15 hours  1 week

  9. Computational Fluid Dynamics • 2D Simulations • Using ComsolMultiphysics and Ansys CFX

  10. CFD - Verification • Results recorded in ratios (CL, CD, CP) • Vertical Flat Plate • Reference: “On the Flow of Air Behind an Inclined Flat Plate of Infinite Span” -Fage and Johansen, 1927.

  11. www.ucalgary.ca/deloprec

More Related