PVMD Delft University of Technology Introduction DNIcos(AOI) - - PowerPoint PPT Presentation

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Feb 23, 2023 687 likes •845 views

Finding the Optimal Tilt Angle Olindo Isabella PVMD Delft University of Technology Introduction DNIcos(AOI) f(SVF, AOI, DHI) G Module GHI a (1-SVF) f( tilt , azimuth ) M Learning objectives 1. Solar irradiance 2. Sun movement

SLIDE 1

PVMD

Delft University of Technology

Finding the Optimal Tilt Angle

Olindo Isabella

SLIDE 2

f(SVF, AOI, DHI) DNI·cos(AOI) GModule

Introduction

f(tilt, azimuth) θM GHI · a · (1-SVF)

SLIDE 3

Learning objectives

1. Solar irradiance 2. Sun movement 3. Tilt angle

1. Calculating irradiance based on tilt angle 2. Finding the optimal tilt and azimuth angles

Optimization flowchart
Fixed and adjustable concepts

3. Mechanical tracking

4. Landscape survey 5. Advanced irradiance modelling

SLIDE 4

Different types of tilt adjusting

Optimum tilt and azimuth Fixed Mechanical tracking

SLIDE 5

SLIDE 6

Different types of tilt adjusting

Optimum tilt and azimuth Fixed Mechanical tracking

Constant
Adjusted seasonally or monthly

SLIDE 7

Optimization of tilt and azimuth

Calculate solar position over year Set a range of θm and Am Integrate incident power Obtain energy incident over year

SLIDE 8

Module azimuth Am (degrees/direction)

90/East 120 150 180/South 210 240 270/West

Module tilt θm (degrees)

15 30 45 60 75 90

Irradiation (kWh/m2)

600 1100 1000 900 800 700

SLIDE 9

SLIDE 10

Different types of tilt adjusting

Optimum tilt and azimuth Fixed Mechanical tracking

Constant
Adjusted seasonally or monthly

SLIDE 11

Optimization of tilt and azimuth

Calculate solar position over year Set a range of θm and Am Integrate incident power Obtain energy incident over year selected period

SLIDE 12

Modules mounted on a tilted roof

Solar Energy book, Appendix E

SLIDE 13

Recap

Calculate solar position over year Set a range of θm and Am Integrate incident power Obtain energy incident over year

SLIDE 14

Adjustable tilt angle

http://www.solarpaneltilt.com/

SLIDE 15

Fixed angle

http://truesolar-usa.com/solar-101.html