Assesment of Pumping Requirements in DEMO Reactor

Abstract

We analyze requirements on the particle throughput inside the torus, posed by the different physics processes during the DEMO inductive operation needed for tritium plant fuel processing, pumping and fueling systems design. Unlike ITER in DEMO limitations posed by pumping and tritium plant systems are expected to be more moderate because of employing advanced solutions. However, the requirements on the particle throughput posed by plasma processes in DEMO are found to be more demanding and the way of their reduction by bypassing, recycling etc. to be mandatory.

Keywords:

• DEMO
• pumping efficiency
• fueling requirements
• particle throughput

Acknowledgments

This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the EURATOM research and training programme 2014–2018 under grant agreement No. 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission.