The differentiation of the electricity tariff is a way to influence the electricity demand. Savings can be made when part of the electricity demand can be shifted to low-rate periods. However, the optimal production flow is often related to the electricity demand in a non-linear way. For an...

The MIND method is used to generate an optimization model of a Swedish refinery. The representation of the system includes non-linear expressions for the energy demand and the operation characteristics of a backpressure turbine. The optimal seasonal production flow is found as well as the...

The MIND method is used to optimize the operating costs of a pulp and paper mill. The optimization includes studies of the effects of material and energy flows, as well as non-linear relations between them. The results show that it is possible to achieve large savings in the pulp and paper mill...