Thermochemical energy storage Germany

What are the advantages of thermo-chemical energy storage?

Compared with sensible heat stores (e. g. water, aquifer) thermo-chemical energy storage offers several advantages: high energy storage densities and no significant thermal losses even for long term storage. It provides a higher quality as the stored exergy can be used for a chemical heat pumping process.

Does seasonal thermal energy storage exist in Germany?

The paper presents an overview of the present status of research, development and demonstration of seasonal thermal energy storage in Germany. The brief review is focused on solar assisted district heating systems with large scale seasonal thermal energy storage.

How to design a thermochemical energy storage system?

Designing such systems necessitates the application of engineering thermodynamics , heat and mass transfer, fluid mechanics, economics, reaction kinetics, and other subjects. In order to understand the relation among various parameters affecting the performance of a thermochemical energy storage system, parametric analyses can be performed.

What is thermochemical TES?

Thermochemical TES is an emerging method which permits more compactness storage through greater energy storage densities. The design of thermochemical energy storage systems is complex and requires appropriate consideration of many factors.

What factors affect the performance of a thermochemical storage system?

Two of the most important parameters to assess the performance of a thermochemical storage system are its energy and exergy efficiencies. Various factors identified in the design section can influence both the energy and exergy efficiencies of a storage system.

How does Charging temperature affect thermal energy storage?

The results show that the charging and overall energy and exergy efficiencies for both closed and open loop systems decrease by increasing the charging temperature. Thermal energy storage is defined as the temporary holding of thermal energy in the form of hot or cold substances for later utilization.