What types of energy conversion occur in food factories?
Your question is too broad. Pick a particular process so that the answerer can be more specific. For example, electrical energy is converted into kinetic or moving energy if it is used to run a conveyor belt. The same type of energy, electrical energy, may be become light and heat energy in lighting apparatus. And so on. Kinetic energy may become potential energy when cartons are lifted by a fork-lift truck in a warehouse. Chemical energy may be converted to heat energy to movement when that same truck burns diesel. Or do you mean converting food ‘raw materials’ into a finished food?