The Effects of Global Warming on a High Temperature Aquifer Thermal Energy Storage Triplet System
Simon Schmoutziguer (TU Delft - Civil Engineering & Geosciences)
Martin Bloemendal – Mentor
Karl-Heinz Wolf – Mentor
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Abstract
During the Paris climate convention, goals have been set to counter global warming and work towards a sustainable future. An energy source which has been researched more intensely the past years is HT-ATES - High Temperature Aquifer Thermal Energy Storage - system. This technique makes it possible to remove the heat pump from conventional HT-ATES energy sources and utilize waste heat or heat from sustainable sources. This paper discusses the robustness a HT-ATES triplet system. A case study is being done to test the triplet system in the present and with different climate scenarios in 2050. The triplet system consists of three storages instead of two as in conventional aquifer thermal energy storage systems. This third storage serves as a temporary storage and minimizes heat loss. With this system, the heat pump can be removed, creating a completely durable thermal energy storage system. The different scenarios show the possible effects of global warming. The system is tested in various climate scenario to see if it is robust and what the effect of global warming is on such a system will be. The results show that global warming indeed has a big impact on the functioning of a triplet system. These problems can be tackled by evaluating the climate at the location of construction of a triplet system. With this evaluation, an optimal design of the triplet system can be made. The number of solar panels and dry coolers can be optimized. Also the storage temperature inside the storages can be optimized for the present climate.