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Summary

Maximilian Sporleder’s presentation on “Network Expansion and Design Optimization of District Heating Systems Utilizing Open Data” delves into the complexities of designing and optimizing district heating networks amidst the energy transition. As a PhD student focusing on the design optimization of supply systems and district heating networks, Sporleder provides an in-depth overview of mathematical optimization techniques. The presentation highlights the importance of using open data and rule-based pre-processing methods to address the challenges of decarbonizing heating systems. To gain deeper insights and access exclusive content, we encourage you to fill out the form and unlock more valuable information.

To gain deeper insights and access exclusive content, we encourage you to fill out the form and unlock more valuable information.

Challenge

Sporleder underscores the pressing need to optimize the design of district heating networks, particularly to incorporate renewable energy sources and seasonal thermal storage systems. Existing networks often rely on fossil fuels, necessitating a shift towards decarbonization and electrification within the heating sector.

Solution

Sporleder proposes a mathematical optimization approach for designing and expanding district heating systems. The methodology involves multi-stage pre-processing steps to estimate demand and determine network topology using open data sources like OpenStreetMap and census data. A rule-based algorithm optimizes network connections based on producer locations and energy density. The optimization process integrates temperatures and mass flows to design the supply system, considering hydraulic optimization, thermal energy storage, and heat pump performance.

Results

Through a case study in a district in Frankfurt, Sporleder demonstrates the application of the proposed methodology. The optimized supply system includes components such as wastewater heat pumps, thermal energy storage, and solar thermal fields, all within space constraints and investment costs. The presentation highlights the trade-offs in optimizing district heating systems, including the impact of time steps on design accuracy and computation time.

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Maximilian Sporleder

Research Associate
Fraunhofer IEG

Maximilian Sporleder

Research Associate
Fraunhofer IEG

Maximilian Sporleder studied energy and raw materials at the Clausthal University of Technology, graduating in 2016, followed by an internship at Daimler AG at the Ulm Research Center in the field of oil measurement technology. He then pursued his Master's degree in energy science and engineering at the TU Darmstadt with a stay abroad at the Indian Institute of Technology Bombay, focusing on machine learning. He completed his Master's thesis in the field of mathematical optimization for the integration of heat pumps in thermohydraulic system networks, completed in 2020. At Fraunhofer IEG, Maximilian writes his Ph.D. in the design optimization of district heating systems and has seven publications in this field. Maximilian Sporleder developed a Python package, supporting district heating network operators in the transition of their heat supply.

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