News

TAO building (Technology Alliance Upper Franconia)

The Department of Engineering Thermodynamics and Transport Processes (LTTT) is pleased to announce two new scientific publications that highlight key aspects of the energy system in the TAO building—a showcase project for sustainable building technology at the University of Bayreuth.

• In the article “Assessment and optimal sizing of ice energy storage systems in various non-residential building types,” we analyze the potential of ice storage systems for efficient heating and cooling in various non-residential buildings. Using a two-stage simulation and optimization approach, we examine different load profiles as well as technological and regional conditions. The results show that ice storage systems – especially in combination with renewable energies – can make an important contribution to reducing CO₂ emissions and increasing energy efficiency.
  
  https://doi.org/10.1016/j.energy.2025.137332
  
  
  
• The second publication, entitled “Dynamic accounting model with integrated emission allocation methods for coupled energy systems with combined heat and power plants and hybrid heat pumps,” was published in the journal Energy Conversion and Management. Here we present a dynamic CO₂ modeling approach that integrates various allocation methods for hybrid energy supply. In addition, a specific method for emission allocation in heat pumps is presented. Using real operating data, the study provides practical insights into the time-dependent emission load in coupled energy systems.
  
  https://doi.org/10.1016/j.enconman.2025.120132
  
  

Both papers highlight the relevance of innovative storage solutions for the energy transition in the building sector and show how research at LTTT contributes to the development of sustainable energy systems.