Sub-project 1: Energy transparency
Starting point and aim of research
A fundamental understanding of energy consumption in production is the basis of
the research project FOREnergy. This understanding may only be achieved by a holistic
transparency in regards to energy demand, fluctuation in demand and potentials for
load shifting. Since energy monitoring is usually not broken down to single consumers,
most industries do not possess the required level of transparency at the moment.
Furthermore, technical possibilities for shifting the electric load are mostly unknown
for existing installations and machines.
Therefore, the overall aim in this sub-project is to facilitate this transparency. Firstly, the most energy intensive and flexible divisions inside factories are identified and secondly, load profiles for theses division are provided. This information is used to create energy models of relevant consumers in production which form the basis for an energy-conscious production control. Additionally, a design for a permanent on-line measurement of energy consumption is developed to enable long-term transparency.
Approach and methodology
The first step is to identify and select the main influencing areas with regard to needed energy intensity and the volatility of energy. Furthermore, system boundaries have to be defined which will be the framework for further research. Particular characteristics of certain productions have to be identified by analyzing different industry sections and companies of different size. Subsequently, energy profiles are generated. The aspects taken into account in this analysis are components, machinery, equipment, and building services. Besides, the existing flexibility has to be registered. As the interactions of the individual flexibilities are essential, they should be determined by a cross-impact matrix. Alongside with the process and the equipment, also organizational possibilities of operation need to be analyzed.
After a first overview of the energetic system has been determined, the results of the power measurement and flexibility considerations are prepared for a future regulation of the energy requirement. In order to do this, the individual energy profiles are combined to an overall profile of the inspected area. An energy requirement model is to be derived which can be used to predict the energy requirement on basis of production parameters, for example. Finally the flexibilities are to be connected with the model in order to outline the possible room for maneuver. For prospective monitoring and regulation of the energetic system an online measuring concept has to be developed. For this purpose it is important to identify necessary measuring points and to determine corresponding measurement resolutions.