UFZ EnergyDays 2017 - Session B1


Experimental and numerical analysis
of subsurface energy system
managed for storage operations


Session Coordinators:


Thomas Nagel, Dept. of Enivironmental Informatics
Birgit Daus, Dept. of Analytical Chemistry

Abstract:

As a key factor for the substantial reduction of greenhouse gas emissions, German policy and economy started the process of a fundamental transformation of the energy system towards a more intense exploitation of renewable sources for power and heat generation.

The individual as well as the national energy demand represent cyclic processes with quite stable daily and seasonal cycles. Using a substantial higher amount of fluctuating energy sources like wind and solar power, it stays increasingly more difficult to harmonize cyclic processes of power supply and power demand. One of the key factors for managing this dilemma will be energy storage on large scales. The subsurface provides several options for the short- and long-term storage of energy carriers and thermal energy of a substantial order. Moreover, geological storage of waste products of energy generation processes (like CO2) based on classical but recently attracted to criticism technologies, e.g., focusing on fossil fuels provides additional opportunities to foster the reduction of greenhouse gas emissions.

This session addresses several scientific questions of large-scale geological storage of energy carriers (e.g., hydrogen storage in salt caverns), waste (e.g., aquifer storage of carbon dioxide), and thermal energy. Contributions are focused on exploration and monitoring techniques, site characterization, computational process analysis, and the evaluation of environmental impacts of the considered geotechnologies.


15:00 - 15:30 Near surface heat storage in urban conurbations - climate protection potential and impact on groundwater
Ralf Köber
Christian-Albrechts-Universität zu Kiel
Abstract
15:30 - 15:50 Shallow geothermal energy systems: Current technical design practice and suggestions for its improvement
Anke Bucher
Leipzig University of Applied Sciences
Abstract
15:50 - 16:10 Design, operation and environmental impact assessment of modular sensible heat storage solutions using numerical simulations
Xing-Yuan Miao
Helmholtz-Centre for Environmental Research - UFZ
Abstract
16:10 - 16:30 Potential impacts of geothermal energy use and storage of heat on groundwater quality, biodiversity and ecosystem processes
Christian Griebler

Helmholtz-Zentrum München - German Research Center for Environmental Health
Abstract
16:30 - 16:40 Break
16:40 - 17:00 Thermo-mechanical investigation of salt caverns for short-term hydrogen storage
Thomas Nagel
Helmholtz-Centre for Environmental Research - UFZ
Abstract
17:00 - 17:20 Underground gas storage: microbial processes and concepts for monitoring them
Carsten Vogt
Helmholtz-Centre for Environmental Research - UFZ
Abstract
17:20 - 17:40 Non-iterative description of CO2-brine equilibria for efficient numerical CCS-modelling
Norbert Böttcher
Federal Institute for Geosciences and Natural Resources
Abstract
17:40 - 18:00 Characteristic length measurement of a subsurface gas anomaly - an integrating monitoring approach over heterogeneous distributed gas flow paths
Detlef Lazik
Helmholtz-Centre for Environmental Research - UFZ
Abstract