UK. ST25-HTS is a follow on device to ST25. 6. High-Field, High Temperature Superconductor • Electrical Transmission • Electrical Energy Storage •NMR/MRI • Possible upgrades to LHC Dipole Field for Hadron Collider* *L. Bottura, et al., IEEE Trans. All coils (toroidal and poloidal) are wound from YBCO HTS tape. ST25(HTS) In order to gain experience with constructing tokamaks using magnets made from HTS, Tokamak Energy constructed a small but complete tokamak. Tokamak Energy aims to accelerate the development of fusion energy by combining two emerging technologies – spherical tokamaks and high-temperature superconductors. HTS allows much higher magnetic fields than would be possible from conventional superconductors, enabling a more compact tokamak design. In parallel we are fast-track developing HTS magnet technology for use in our follow-up machine. In construction, due for high temperature testing starting spring 2017. Tokamak Energy. 2. In 2015, ST25-HTS ran its magnets and sustained a plasma continuously for 29 hours. For Tokamak Energy, miniaturisation will then be the goal. Characteristic magnet behaviour. Tokamak Energy’s technology revolves around high temperature superconducting (HTS) magnets, which allow for relatively low-power and small-size devices, but high performance and potentially widespread commercial deployment. Spherical Tokamak. HTS Cryogenic Engineer at Tokamak Energy Ltd England, United Kingdom. 22(2012)4002008. Tokamak Energy HTS magnet test facilities 3. This is the world’s first demonstration of a tokamak magnet where all the magnets are made from HTS. ST40. Tokamak Energy grew out of Culham Laboratory, home to JET - the world's most powerful tokamak - and the world's leading centre for magnetic fusion energy research. This compact, high-field tokamak will be built with HTS magnets, allowing for a smaller device than previous magnet technology. Magnet performance comparison. Higher B: spatial resolving power ~B3 SMES: Energy Density B2 Small ST, Tokamak Energy, UK Then, in the 2010s, high temperature superconductor (HTS) materials became available as a reliable engineering material, fabricated into long tapes suitable for winding into magnets. 2. At the same time we will unveil a large prototype HTS magnet suitable for a tokamak. Results of the QA magnet programme 1. Tokamak Energy Ltd, UK, is developing spherical tokamaks using high temperature superconductor magnets as a possible route to fusion power using relatively small devices. ST40: 40cm plasma radius version. is developing a conceptual design for SPARC, a compact, high-field, net fusion energy experiment.SPARC would be the size of existing mid-sized fusion devices, but with a much stronger magnetic field. Bas van Nugteren. Currently, some large warships have their own nuclear fission plants – the other form of nuclear energy humankind has used for decades. SPARC will the pave the way for carbon-free, safe, limitless, fusion power. Alun Down HTS Magnet Project Engineer at Tokamak Energy Ltd … present. Tokamak Energy has produced two laboratory prototypes, achieving a world first with the ST25 HTS, which demonstrated the use of high temperature superconductor (HTS) magnets. I lead a team of skilled engineers and technicians on several HTS magnet projects. 2012 to . found in systems codes and studies [16,17] and tokamak magnet design studies [18]. Tokamak Energy’s family tree. Tokamak) is well underway. Fischer is particularly interested in how to keep the HTS tapes from degrading. Supercond. By combining high-temperature superconducting (HTS) magnets with spherical tokamak technologies, the ST40 reactor is able to produce the perfect conditions for fusion power with plasma temperatures that are even hotter than the centre of the sun. 2017 to . ST25: The spherical tokamak (ST) with a 25cm outside radius of the plasma. HTS allows much higher magnetic fields than would be possible from conventional superconductors, enabling a more compact tokamak design. The field at the In 2015, the world's first tokamak with HTS magnets – Tokamak Energy's second reactor – demonstrated 29 hours of continuous plasma, which was a world record. “Saturated Mode” operation. Bas van Nugteren HTS Magnet Development Engineer at Tokamak Energy Abingdon. Tokamaks are the most advanced fusion concept in the world, but recent progress has been slow and we need to take an innovative approach to develop fusion faster. In this paper, the application feasibility of HTS tapes on tokamak magnets is discussed and the existing four kinds of HTS high current conductors are summarized. ... ST25 HTS. Tokamak Energy are developing novel HTS technology targeting demonstration of net fusion energy gain in the world's first compact superconducting spherical tokamak: ST-F1. Oxfordshire-based Tokamak Energy is working on spherical tokamaks or reactors that use high temperature superconductors (HTS) to contain the plasma in a very strong magnetic field. We can build a small tokamak quickly We can extend plasma pulse Long pulses feasible with HTS and RF (micro-wave) current drive A high magnetic field in a small tokamak is the key to compact fusion energy First patent application filed on fusion power from compact spherical tokamak with HTS magnets SPARC. energy confinement in STs has a stronger dependence on toroidal field compared to large aspect ratio devices •Tokamak Energy have extended ST scaling to include a size dependence , ℎ (ST,gyro−Bohm)∝ −1 ∗ −3 ∗ −0.53−0.17 −0.35 , ℎ (ST,gyro−Bohm)=0.21 0.54 0.91 −0.38 HTS also allows the fusion magnets to operate at higher temperatures, greatly reducing the required cooling. A ground-breaking fusion reactor built by Chinese scientists is underscoring Beijing's determination to be at the core of clean energy technology, as it eyes a fully-functioning plant by 2050. A key innovation is that the company combines spherical tokamaks with the latest generation of high temperature superconducting magnets (HTS). ST25 HTS: Proved that High Temperature Superconducting (HTS) magnets worked. The UK's Tokamak Energy grew out of Culham Laboratory, home to JET - the world's most powerful tokamak - and the world's leading centre for magnetic fusion energy research. 3. Mixed … All of the ST25 code is new and written specifically for this application; however, we can reuse the code in the ST25(HTS) and future iterations and take full advantage of the NI graphical system design benefits. The HTS current leads for the ITER Tokamak are procured by the Chinese Domestic Agency through the Institute of Plasma Physics (ASIPP) in Hefei. Quench - accompanying presentation Jeroen van Nugteren (JvN) 4. Credit: The Tokamak Energy HTS Magnet Team Simon Bradford, Trevor Husband, Rod Bateman, Chris Buckley, Tony Langtry, Marcel Kruip, Greg Brittles, Rob Slade, Bas van Nugteren Tokamak Energy is deliberately trying to tackle difficult engineering challenges as rapidly as possible, something HTS materials is helping us do. Furthermore, an YBCO conductor structure suitable for a 10 GJ tokamak TF magnet is designed and the current carrying capacity is evaluated. By 2019 the ST40 will demonstrate that fusion energy conditions are achievable in a small tokamak. Tokamak Energy grew out of Culham Laboratory, home to JET – the world’s most powerful tokamak – and the world’s leading centre for magnetic fusion energy research. It uses REBCO high-temperature superconductor coils in both the toroidal and poloidal field coils. The Tokamak Energy HTS magnet development team answer questions from our followers on their work with high temperature superconductor materials and making high … The following is a list of fusion energy projects pursued by organizations worldwide. Tokamak Energy is working with Oxford Instruments to develop and demonstrate the world’s first tokamak with magnets made from high-temperature superconductors (HTS). A tokamak with HTS (for example, Rare-Earth Barium Copper Oxide REBCO)- would allow an increase in B T at the center of the plasma, over LTS technology, from ≈ 5.5T to more than 12T. The MIT Plasma Science & Fusion Center in collaboration with private fusion startup Commonwealth Fusion Systems (CFS). The factor 2 increase in the cost of current leads due to addition of (still relatively expensive) HTS material is more than offset by the cost savings for cryoplants and power savings during operation. UK. Tokamak Energy. Dr Rod Bateman, HTS Development Manager, tells us about his work in high temperature superconductor (HTS) magnet development and why it is so exciting for him to work at Tokamak Energy. Spherical Tokamak. Tokamak Energy, 173 Brook Drive, Milton Park, Oxon, OX14 4SD, UK 1. Most importantly, HTS current leads—in a similar way to superconducting magnets—contribute to the positive energy balance of the ITER Tokamak. Jonathan Carling, CEO at Tokamak Energy… Responsibilities include magnet design, manufacture and testing, project management and team leadership. Fischer is particularly interested in how to keep the HTS tapes from degrading. HTS also allows the fusion magnets to operate at higher temperatures, greatly reducing the required cooling. Fusion energy projects and start-ups around the world are pursuing fusion in different ways. Senior magnet engineer within Tokamak Energy, developing high temperature superconducting (HTS) magnets for spherical tokamaks. present. 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