ANtLiA

Overall project: Application-related further development of submersible centrifugal pumps and line shaft pumps in geothermal systems Sub-project: Development of a multiphase ESP drive system (ANtLiA - mESP-AnSys)

Prof. Dr.-Ing. habil. Christoph M. Hackl

The ANtLiA (Latin for “pump”) project aims to improve the factors currently limiting success in order to increase the service life of geothermal pump systems, minimize their environmental impact and thus significantly improve the economic efficiency of geothermal projects and security of supply.

The ANtLiA project is therefore pursuing the following key objectives:

- A detailed data collection and analysis to improve the understanding of failures of geothermal pump systems (LSP and ESP) and pump motors (ESP) including the classification and weighting of failure causes, and possible predictive maintenance options.

- Further development of LSP systems: o Testing of a new type of monitoring system for LSPs and optimized operational management through an improved understanding of pump operation.

  • Investigation of an alternative (aromatic-free) lubricant to enable the use of LSPs in regions in Germany that place increased legal requirements on the operation of LSPs.
  • Design, construction, testing and monitoring of an oil recirculation system for LSPs to prevent oil leakage into the annulus.
  • Design and construction of a test stand for testing the oil recirculation system for LSPs.
  • Evaluation and technical planning for a LSP application in the Bavarian Molasse with special consideration of the installation depth; comparison with ESP systems at comparable pumping rates, as well as determination of the admissibility under licensing law with the aim of test operation.

- Further development of ESP systems: o Recommendations for systematic design improvements to existing ESP pump systems and operational management to increase the efficiency, flexibility and reliability of geothermal pump systems.

  • Targeted design, prototyping and testing of optimized components for ESPs to increase efficiency, flexibility and reliability (service life).

- Business analysis of the proposed improvements and presentation of the results at stakeholder meetings (manufacturers, operators, insurers).

- Visualization of the technology options for technical laymen (ESP/LSP operation).

Term: 01.01.2025 - 31.12.2027

Employees:

Institutions:

Project management:

Funding body:

  • Federal Ministry for Economic Affairs and Climate Protection

Project coordination:

  • Fraunhofer IEG, Institut für Energieinfrastrukturen und Geothermie IEG

Project partner:

  • Fraunhofer IEG, Institut für Energieinfrastrukturen und Geothermie IEG
  • SWM Services GmbH
  • BESTEC GmbH