Table 1 Orchard related parameters during frost period.
From: Design of anti-frost smoke machine system for mountain orchard based on multi-objective optimization
Parameter | Describe | Value |
|---|---|---|
\(W\) | Orchard width (m) | 50 |
\(L\) | Orchard length (m) | 100 |
\({n}_{t}\) | Number of trees | 1734 |
\({n}_{cp}\) | Number of checkpoints | 1734 |
\({N}_{cm}\) | Number of candidate anti-frost smoke machines | 117 |
\(dht\) | The distance between the center of the tree and the center of the anti-frost smoke machine (m) | 1 |
\(ds\) | Distance between adjacent anti-frost smoke machines (m) | 5 |
\({C}_{min}\) | Concentration threshold (ug/m3) | 20 |
\(\Delta d\) | Distance between adjacent fruit trees (m) | 1 |
\(\Delta dt\) | Distance between adjacent tree rows (m) | 3 |
\(u\) | Ambient wind speed (m/s) | 2 |
\(h\) | Smoke release height (m) | 1.2 |
\(Q\) | Smoke release concentration (ug/cm3) | 100 |
