OffShoreWind_Project

OffshoreWind energy project (TuDelft)

Getting started

First clone the repository using:
git clone https://github.com/JoshuaBog09/OffShoreWind_Project.git (bash)
or gh repo clone JoshuaBog09/OffShoreWind_Project (GitHub CLI) and then start up a clean virtual environment of your choice(python 3.9 should be used). Afterwards install the following dependencies using pip.

pip install matplotlib
pip install numpy
pip install pyqt5

Progress and task division

Task	Done by	Current status	Checked	Completed
GUI	Joshua and Roel	Completed	✔️	✔️
Wake effect model	Joshua	Completed	✔️	✔️
Velocity profile model	Joshua and Wessel	Completed	✔️	✔️
Poster	Wessel and Mees	In progress
Documentation	Roel(Text) and Joshua(Photo)	Completed	✔️	✔️
Interesting info	Roel	Completed	✔️	✔️
Error display	Roel	Completed	✔️	✔️
...

Documentation

Guide

Insert the reference velocity in meters per second. Generally this is around the 10 m/s on sea.
Insert the reference height in meters. This is the height at which the reference velocity is measured. Generally this is at 10 meters above the ground.
Insert the capacity factor of the farm site. This factor is dimensionless and describes how much the wind turbine produces energy at rated power equivalent. For North Sea conditions this factor is around 0.45 [-].
Insert the hub height in meters. The hub is where the rotor is connected to the tower. Generally this is 100 to 150 meters.
Insert the rotor diameter in meters. This is generally around 200 meters.
Insert the turbine placement in the row of wind turbines. This needs to be at least 3 rotor diameters away from the previous wind turbine. The first turbine is by definition placed at 0 meters and should not be implemented in the list. The separation of the list entries is a comma with a space after it (, ).

As output you get the power of the first turbine in line. This is interesting since this turbine the highest power of all the turbines in the array. This power is obtained by using the velocity of the wind at the hub height and the wind turbine characteristics. The wind velocity at hub height is obtained by using the log-law with a surface roughness of 0.0002 and the power-law with an exponent of 0.11. These two laws describe the velocity profile below and above 60 meters (called the blending height) respectively.
The second output is the total farm power. This is not a multiple of the number of turbines in the row since wake effects modeled by the Jensen model affect the wind energy at the other turbines. This model uses the extraction of momentum of the wind. This results in a wake expansion with a factor of 0.05.
The third output is efficiency of the array with respect the that of the array without wake effects. This is as if there are only power yields equal to the one of the first wind turbine. The last output is energy yield over one year in MWh.

Visual guide

Sources

[1] TU Delft AE3516A, Lecture 4: Windfarms, 2022
[2] TU Delft AE3516A, Lecture 2: WindWaveResource, 2022