Method and system for monitoring and analyzing energy consumption in operated chemical plants

A non-transitory information carrier including tangibly a computer program product, the computer-program product comprising instructions that when executed cause a processor to perform the method to monitor and analyze and simulate energy consumption of a chemical plant in operation, comprising

• determination of a plant-type specific theoretical energy consumption optimum value (TEO) for the plant, that are used for monitoring current data and/or a predictive model based on fundamental natural laws for planning future energy consumptions by using projections, based on a comparative corresponding model plant,
• identification and grouping parameters of dynamic and static processes, contributing to increased energy consumption of the plant i) resulting from processes performed in by assigning the parameters to a list comprising at least the plant, ii) resulting from internal characteristics of the plant, and iii) resulting from operating conditions of the plant respectively, chemical process, infrastructure, plant characteristics, partial load, downtime, product mix, plant operational parameters and losses,
• providing energy contribution rates for each parameter identified by the grouping, partly by an automatic and/or whenever required, periodic retrieval, further providing by means of an implemented algorithm a transformation of measured and grouped, static and dynamic data into efficiency data, and
• periodically graphing the energy consumption of the plant via a grouped bar graph starting from the plant type specific theoretical energy consumption optimum value (TEO) and arriving at a current energy consumption value (CEC) of the plant by adding the provided single energy consumption rates of the respective static and dynamic parameters in groups, thus forming an energy cascade which allows to monitor and/or to predict at least a part of the individual parameters and to compare the current energy consumption of the plant with an energy consumption of another plant and/or with a previous energy consumption of the plant with respect to the individual parameters of the list
• displaying the results of monitoring and analyzing the energy consumption.

An energy management system comprising:

• a modeling means configured to determine, based on a model plant, a plant type specific theoretical energy consumption optimum value which is being used as a reference and, thus, for planning future energy consumption by using projections based on a predictive model;
• an analyzing means configured to identify and group parameters of dynamic and static processes, which contributing to an increased energy consumption of the plant by assigning the parameters to a list comprising at least a chemical process, infrastructure, plant characteristics, partial load, downtime, product mix, plant operational parameters and losses;
• a provisioning means configured to provide energy contribution rates of the respective parameter, the provisioning means comprising a retrieval means configured for automatic and/or periodic retrieval of energy contribution rates of at least a part of the respective parameters, and
• a monitor and control means configured for periodically graphing the energy consumption of the plant via a grouped bar graph starting from the theoretical energy consumption optimum value and arriving at a current energy consumption of the plant by adding the provided single energy consumption rates of the respective parameters in groups,
• thus forming an energy cascade which allows to monitor at least a part of the individual parameters and to compare the current energy consumption of the plant using a self-calibrating performance scale with an energy consumption of another plant and/or with a previous energy consumption of the plant with respect to the individual parameters of the list.