Download presentation

Presentation is loading. Please wait.

Published byLea Crewe Modified over 3 years ago

1
PV System Design and Installation LO 9 – Mechanical Design

2
Mechanical Design (3% of text questions) Task/Skill 9.1. Describe the relationship between row spacing of tilted modules and sun angle, 9.2. Describe the mechanical loads on a PV array (e.g., wind, snow, seismic).

3
Sun – Radiant Energy PV module Shading issues Flat roof PV installations

4
Tilted Modules and Sun Angle Row Spacing Design/Layout Reference 2

5
Tilt Angle Analysis Definitions T = Module Tilt Angle (degrees) H = Module Tilt Height M = Module Width D = Module Row Distance A = Solar altitude (degrees) S = Frame distance Tangent (A ) = H / S S = H / Tangent (A)

6
What Sun Angle (solar altitude) do you use for design? Think Winter Solstice (9 am to 3 pm).

7
Right Triangle Geometry C A B A^2 X B^2 = C^2 C = Square Root (A^2 X B^2) Tangent (Angle 1) = A/B Cosine (Angle 1) = B/C Sine (Angle 1) = A/C Angle 1 + Angle 2 = 90 degrees Most calculators use radians to calculate geometric functions. To convert an “angle” to a “radian”; Radians = (3.14 x Angle) 180 Angle 1 90 degrees Angle 2

8
Class Exercise Calculate required distance between rows of modules on a flat roof

Similar presentations

OK

Objective - To use basic trigonometry to solve right triangles.

Objective - To use basic trigonometry to solve right triangles.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on db2 introduction to computers Ppt on video teleconferencing training Ppt on working of human eye and defects of vision and their correction Ppt on symbian mobile operating system Ppt on breast cancer treatment Ppt on social issues in today's society Ppt on course management system Download ppt on poverty as challenge in india Web development seminar ppt on 4g Ppt on human body systems