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United Kingdom Atomic Energy Authority

STEP WP5 - Heat Pipe Design Challenge

Publication Platform
EU SUPPLY LIMITED

Publication Date
29 November 2019

Deadline
12:00am, 04 November 2019

Tender ID
20191129140143-72814

Winners
Aavid Thermacore Europe Ltd (£99,525), Brunel University (£99,525)

Description
Managing the heat exhaust from a fusion reactor is one of the most pressing challenges facing those seeking to realise a commercial power plant design For spherical tokamak designs such as STEP, the compact nature of the device potentially increases the heat fluxes on the plasma-facing components and restricts the space for incorporating cooling when compared to conventional larger aspect-ratio tokamaks such as ITER or EU-DEMO. A fusion reactor heat exhaust is handled via a divertor, which needs to handle large heat fluxes (>10 MW.m-2) especially in the divertor target 2Heat pipes have been proposed as potential technology for fusion high heat flux components since at least 1972. Liquid metal filled heat pipes have been tested under fusion relevant heat fluxes as recently as 2018. Despite this, there remain significant outstanding questions before they can be considered as a feasible solution for the fusion heat exhaust problem The STEP Work Package 5 (Resilient Nuclear Components) wishes to harness industrial expertise in heat pipe design outside the fusion community and to identify whether this expertise can be applied to developing an innovative heat pipe concept design for the STEP divertor target. This design challenge is ultimately concerned with the feasibility of implementation for a heat pipe high heat flux handling solution within the divertor region of a fusion reactor. The UKAEA is seeking the assessment of innovative preliminary concept designs of a high heat flux heat pipe suitable for use as a STEP divertor target. The total duration of the activities of this initial contract shall not exceed 12 weeks and must be completed by March 2020.

Note
Please note that where a tender award refers to a framework agreement, the individual values of the award may be shown as the total value of the framework rather than the value of that award to each winner, so for this tender the possible value of the framework to each winner could be £49,763 rather than £99,525