Simulations on quantitative metrics in BHT productions
This software attempts to simulate the efficiency and quality of BHT production, depending on variable input parameters on bast fiber geometry and selection.
We aim for predictions of the following BHT metrics:
- thickness
- width
- joins per meter
- length
We also predict variability for those metrics. We make that prediction dependent on the properties of the used bast fibers:
- length distribution
- head widths distribution
- width change over length
- head thickness distriution
- thickness change over length
Given the geometries of the bast peeler, we assume the followin min/max constraints to apply:
| metric | symbol | unit | min | max | mean | steps |
|---|---|---|---|---|---|---|
| length | L | mm | 500.00 | 1600.00 | 1000.00 | 1.00 |
| width | W | mm | 0.00 | 22.00 | 10.00 | 0.10 |
| thickness | T | mm | 0.10 | 0.70 | 0.45 | 0.01 |
We will model different discrete distributions of those metrics. Step
The process of BHT creation is modeled on stitching, with specific stitching parameters derived from the technology demonstrater used at HFU:
- max throughput: 33mm/s, 16stiches/s (0.48 stitches/mm)
- BHT width: 5mm
We don't have good statistics on how many bast fibers are obtained per stalk. We assume the following distribution (in percent):
10%: 0 pieces of bast
40%: 1 piece of bast
50%: 2 pieces of bast