Table 3
Experimenter setting.
| Parameter category | Numerical value | Unit |
|---|---|---|
| Supplier quantity | 3 | Individual |
| Number of alternative distribution centers | 5 | Individual |
| Number of end retailers | 15 | Individual |
| Time sensitivity coefficient of fresh products | 0.0011 | / |
| Product unit price | 9800 | Yuan/t |
| Distribution center usage cost | 650 | Yuan/day |
| Fixed cost of vehicles | 350 | Yuan/vehicle. day |
| Transportation cost of vehicles | 30 | Yuan/kilometer |
| Number of vehicles in the distribution center | 12 | Vehicle |
| Number of supplier vehicles | 5 | Vehicle |
| Vehicle load capacity | 8 | Ton |
| Delivery vehicle speed | 47 | Km/h |
| Refrigerated truck service time | 10 | Min |
| Aging degree of refrigerated carriages | 0.07 | / |
| Thermal conductivity of refrigerated truck materials | 0.14 | Kcal/(h ·-2•°C) |
| The area of heat exchange between the carriage and the outside world | 38.5 | m-2 |
| The maximum storage capacity of the distribution center | 29 | Ton |
| Opportunity cost per unit time | 1.8 | Yuan/min.t |
| Penalty cost per unit time | 9.8 | Yuan/min.t |
| The temperature difference inside and outside the carriage | 11.5 | °C |
| Unit refrigeration cost | 0.58 | Yuan/(h · kcal) |
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