3. Tokamak Energy’s family tree. This compact, high-field tokamak will be built with HTS magnets, allowing for a smaller device than previous magnet technology. HTS Cryogenic Engineer at Tokamak Energy Ltd England, United Kingdom. ST40: 40cm plasma radius version. Spherical Tokamak. Magnet performance comparison. At the same time we will unveil a large prototype HTS magnet suitable for a tokamak. 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. 2012 to . Senior magnet engineer within Tokamak Energy, developing high temperature superconducting (HTS) magnets for spherical tokamaks. Tokamak Energy, 173 Brook Drive, Milton Park, Oxon, OX14 4SD, UK 1. HTS allows much higher magnetic fields than would be possible from conventional superconductors, enabling a more compact tokamak design. Tokamak Energy is working with Oxford Instruments to develop and demonstrate the world’s first tokamak with magnets made from high-temperature superconductors (HTS). The following is a list of fusion energy projects pursued by organizations worldwide. I lead a team of skilled engineers and technicians on several HTS magnet projects. SPARC is an important step to accelerate the development of commercial fusion energy. 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. All coils (toroidal and poloidal) are wound from YBCO HTS tape. In 2015, ST25-HTS ran its magnets and sustained a plasma continuously for 29 hours. present. Mixed … UK. SPARC. By 2019 the ST40 will demonstrate that fusion energy conditions are achievable in a small tokamak. Responsibilities include magnet design, manufacture and testing, project management and team leadership. START (Small Tight Aspect Ratio Tokamak) ST25-HTS is a follow on device to ST25. 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. 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. “Our latest design, ST40, uses copper magnets but is much more of an engineering challenge as we are aiming for exceptionally strong magnetic fields, up to three Tesla at the centre of the plasma,” Kingham says. found in systems codes and studies [16,17] and tokamak magnet design studies [18]. Most importantly, HTS current leads—in a similar way to superconducting magnets—contribute to the positive energy balance of the ITER Tokamak. ST25: The spherical tokamak (ST) with a 25cm outside radius of the plasma. The Tokamak Energy HTS magnet development team answer questions from our followers on their work with high temperature superconductor materials and making high … 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. ST25(HTS) In order to gain experience with constructing tokamaks using magnets made from HTS, Tokamak Energy constructed a small but complete tokamak. Spherical Tokamak. Fischer is particularly interested in how to keep the HTS tapes from degrading. 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. ST25-HTS is the first tokamak to use these superconductors for both sets of coils. 2017 to . 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. Quench - accompanying presentation Jeroen van Nugteren (JvN) 4. 2. present. 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. ST40. 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 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 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 Tokamak Energy. 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. 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. UK. Fischer is particularly interested in how to keep the HTS tapes from degrading. 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. Bas van Nugteren. Appl. It uses REBCO high-temperature superconductor coils in both the toroidal and poloidal field coils. Tokamak Energy is deliberately trying to tackle difficult engineering challenges as rapidly as possible, something HTS materials is helping us do. ... ST25 HTS. Bas van Nugteren HTS Magnet Development Engineer at Tokamak Energy Abingdon. In construction, due for high temperature testing starting spring 2017. Tokamak) is well underway. The field at the The HTS current leads for the ITER Tokamak are procured by the Chinese Domestic Agency through the Institute of Plasma Physics (ASIPP) in Hefei. HTS also allows the fusion magnets to operate at higher temperatures, greatly reducing the required cooling. Tokamak Energy Ltd, UK, is developing spherical tokamaks using high temperature superconductor magnets as a possible route to fusion power using relatively small devices. HTS allows much higher magnetic fields than would be possible from conventional superconductors, enabling a more compact tokamak design. This is the world’s first demonstration of a tokamak magnet where all the magnets are made from HTS. Tokamak Energy HTS magnet test facilities 3. Results of the QA magnet programme 1. Alun Down. Furthermore, an YBCO conductor structure suitable for a 10 GJ tokamak TF magnet is designed and the current carrying capacity is evaluated. ST25 HTS: Proved that High Temperature Superconducting (HTS) magnets worked. For Tokamak Energy, miniaturisation will then be the goal. The MIT Plasma Science & Fusion Center in collaboration with private fusion startup Commonwealth Fusion Systems (CFS). Tokamak Energy aims to accelerate the development of fusion energy by combining two emerging technologies – spherical tokamaks and high-temperature superconductors. 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. Currently, some large warships have their own nuclear fission plants – the other form of nuclear energy humankind has used for decades. “Saturated Mode” operation. Defect tolerance 5. 22(2012)4002008. 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. In parallel we are fast-track developing HTS magnet technology for use in our follow-up machine. 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. 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. 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. A key innovation is that the company combines spherical tokamaks with the latest generation of high temperature superconducting magnets (HTS). HTS also allows the fusion magnets to operate at higher temperatures, greatly reducing the required cooling. Alun Down HTS Magnet Project Engineer at Tokamak Energy Ltd … Characteristic magnet behaviour. SPARC will the pave the way for carbon-free, safe, limitless, fusion power. 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. 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. 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. Higher B: spatial resolving power ~B3 SMES: Energy Density B2 Small ST, Tokamak Energy, 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. Jonathan Carling, CEO at Tokamak Energy… 3.2. 6. Fusion energy projects and start-ups around the world are pursuing fusion in different ways. 2. Supercond.