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Introduction
This project is meant to create universal algorithm to generate whole greenhouse froma scratch, including FEM mechanical and thermal analysis to optimalize the shape, as well as check which window geometry is the best. I’d like to check these scenarios using metal and wooden frame:
- single old window,
- 2 layers of Polypropylene/Low Density Poliethylene foil (because it is easy to find),
- aerogel (just for fun, it is impossible to use it in real scenario, due to its brittleness, and expensiveness),
Mechanical analysis
It is necessary to check strains under the wind, in my opinion it may be enough to check the wind coming from 45 degrees angle to longer plane, and paraller to the ground plane. Second scenario to check is wind perpendicular to the longer plane, and of course paraller to the ground.
Thermal analysis
In this analysis I’d like to check the time needed to reach the certain temperature in two scenarios:
- Temperature inside the greenhouse 15 degrees, and outside below 0, time needed to reach 8 degrees (minimal temperature for the tomatoes),
- Temperature inside the greenhouse 15 degrees, and outside more than 25, time needed to reach 35 degrees (minimal temperature for the tomatoes to fruit).
Parameters
There are 3 to check:
- sun radiation,
- temperature,
- heat transfer coefficient, of both windows and frame
Library to draw CAD in Python:
CADquery
Libraty to create mesh
PyMesh