Source: https://tendernation.io/opportunities/01a13c33-fb88-71bd-abe2-98a4dd74a7ed/step-wp5-heat-pipe-design-challenge awarded GB open procedure Suitable for SMEs # STEP WP5 - Heat Pipe Design Challenge [United Kingdom Atomic Energy Authority](https://tendernation.io/buyers/united-kingdom-atomic-energy-authority) Estimated value Not stated Published 29 Nov 2019 Deadline Closed 4 Nov 2019 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender 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. Read full description ## CPV classification Radioactive materials Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/997a235b-367d-44d9-bac7-b217c8e7b380) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile United Kingdom Atomic Energy Authority: past awards and live tenders](https://tendernation.io/buyers/united-kingdom-atomic-energy-authority) [Sector More Fuels, energy & petroleum products tenders](https://tendernation.io/sectors/fuels-energy) ## More tenders like this [Electricity, heating, solar and nuclear energy – Dostawa energii elektrycznej na potrzeby Agencji Mienia Wojskowego Oddziału Regionalnego w Olsztynie wraz z odkupem energii wyprodukowanej w OZE i oddanej do sieci · Agencja Mienia Wojskowego · 4 days left · 23 Oct 2026](https://tendernation.io/opportunities/01a15183-774d-7004-8b7e-f1b2a0a010dc/poland-electricity-heating-solar-and-nuclear-energy-dostawa-energii-elektr) [Diesel oil – Zakup i dostawa paliw płynnych · Komenda Wojewódzka Policji z siedzibą w Radomiu · 35 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a15183-cc4a-7236-a274-650a5202889f/poland-diesel-oil-zakup-i-dostawa-paliw-plynnych) [Natural gas – Gasausschreibung Amt Seenlandschaft Waren für die Lieferjahre 2027 bis einschließlich 2029 · Amt Seenlandschaft Waren · 31 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a15183-0afd-7206-8b91-ee7090daec9e/germany-natural-gas-gasausschreibung-amt-seenlandschaft-waren-fur-die-liefer) [Unleaded petrol – RDW w Hrubieszowie Dostawa paliw w 2027r. · Zarząd Dróg Wojewódzkich w Lublinie Rejon Dróg Wojewódzkich w Hrubieszowie · 15 days left · 3 Nov 2026](https://tendernation.io/opportunities/01a15183-3f34-701b-977c-c9478f43da99/poland-unleaded-petrol-rdw-w-hrubieszowie-dostawa-paliw-w-2027r) [Electricity – Lieferung von elektrischer Energie für eine Produktionsstätte in Dudelange · Ministère de l’Économie · 29 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a15183-097b-72f4-b634-25caa511f01a/luxembourg-electricity-lieferung-von-elektrischer-energie-fur-eine-produktio) [Natural gas – Erdgasliefervertrag · Universitätsklinikum des Saarlandes · 4 days left · 23 Oct 2026](https://tendernation.io/opportunities/01a15183-6a6c-706d-b07b-935d246d1d1f/germany-natural-gas-erdgasliefervertrag)