SIM Yoghurt Factory

The advantage of anyLogistix is the possibility to extend any object using AnyLogic. This allows you to model site operations inside four walls.

This example illustrates how you can capture production process in a high level of detail with the aid of AnyLogic Fluid library.

We consider a supply chain with Yoghurt Factory in Sarnen which is supplied by the milk and fruits. Once a week yoghurt bottles are delivered to customers in Switzerland through two DCs located in Zurich and Lausanne.

We assume that in average people consume 50 yoghurt bottles per year. The customers are located in the 50 largest cities and we assume that the supply chain covers 10% of the total demand of the cities.

The yoghurt production comprises the following stages:
  1. Solid content normalization: milk mix preparation (97% milk and 3% milk powder) and graduation (10% volume).
  2. Deaerating milk.
  3. Viscolization - blending of two mutually non-soluble liquids, making them the same throughout.
  4. Pasteurization - heat treatment.
  5. Cooling.
  6. Ripening - milk clotting in milk and products of its processing under the influence of starter microorganisms’ formation.
  7. Adding Fruit filler. If there is not enough fruits on factory the process will switch to product utilization.
  8. Cooling.
  9. Heat treatment.
  10. Hot product packaging and further cooling.
The goal is to analyze the production process efficiency:
The result shows that the inventory policies for raw materials replenishment satisfy production needs. However, for continuous production we must consider the time it takes to deliver the raw materials to the factory. That is why the produced volume does not match the production request, but since the customer demand was lower than the production request, the service level is 100%.

 

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