Master's Thesis Jennifer Honert

 

Decentralized supply of buildings with heating and cooling energy in an urban district

Honert Copyright: EBC Heat consumtion of the Jülich Research Center with regard to the simultaneity between heat and electricity

For the sustainable energy supply of buildings, the focus shifts from individual buildings to large building stocks or city districts. Some of these districts already have an existing have an existing infrastructure system of thermal district heating and cooling. Due to retrofit and energy efficiency measures, the consideration is whether the central network should be changed to a decentralized supply. These decisions are not taken holistically for the whole area, but individually for single buildings.

The aim is to develop a methodology to assess of whether a building should still be supplied centralized or decentralized. The metodology is applied using the example of the Jülich Research Center. First, evaluation criteria for the energy consumption as well as the simultaneity between heat, cold and electrical consumption are developed and implemented using available monitoring data. These factors are visualized for all buildings and enable an easy evaluation and selection of a preferred type of supplysystem.

After suitable buildings or group of buildings for a detachment from the existing network are selected, individual energy concepts for these buildings or areas can be developed. The energy system for a selected building group is to be modeled and dynamically simulated to give valuable conclucions on the regulation and synergy effects. A area around the two data centers of the Jülich Research Center is selected and a heat displacement within this is investigated.