Conveners
Tue-Af-Posters Session 1.3: Cryogenics for Power Applications, Other Applications, LNG and H2
- Serge Claudet (CERN)
Dr
Yasuharu Kamioka
(ColdTech Associates)
08/07/2014, 14:15
C-11: Cryogenics for power applications and transportation
Poster presentation (105min)
The cooling system is a key component for realizing practical HTS applications. Even if the HTS application is ready for commercial use today, its cooling system is still experimental stage. There are several test sites of HTS cables but these cooling systems are not suited for practical applications. It is the same case with other HTS applications such as motors, generators and power systems....
Sjoerd Van der Putte
(Demaco Holland bv)
08/07/2014, 14:15
C-13: LNG and hydrogen systems
Poster presentation (105min)
In February 2013 Demaco was awarded with the contract for the design, manufacture and delivery of 1800 meter vacuum insulated transfer lines for the Skangass LNG terminal Lysekil, Sweden. Besides delivery of LNG to Preem’s refinery, a truck loading facility is built in connection to the terminal. The terminal will also become an important hub for distribution of LNG as fuel for ships.
A shift...
Dr
Andrew Rys
(Kansas State University)
08/07/2014, 14:15
C-12: Various applications of superconductors
Poster presentation (105min)
Electronic circuits generally perform well at moderately cold temperatures, but can show interesting and negative behaviors as extreme cryogenic regimes are reached. This paper looks at the performance of Silicon-on-Sapphire (SOS) and selected commercial silicon devices operating to temperatures at and below the freezing point of nitrogen. While expected freeze-out behavior is observed...
Dr
Shuichiro Fuchino
(National Institute of Industrial Science and Technology)
08/07/2014, 14:15
C-11: Cryogenics for power applications and transportation
Poster presentation (105min)
The wind energy sector is one of the main energy sources concerned with environment and energy. However a particular trend is increasing turbine ratings, this trend causes the increase of the nacelle weigh. To solve this problem, superconducting wind turbine generators have the potential to provide a compact and light weight drive train. Nevertheless of these advantages, the cryogenic system...
Masaru Tomita
(Railway Technical Research Institute)
08/07/2014, 14:15
C-11: Cryogenics for power applications and transportation
Poster presentation (105min)
DC electric railway systems are widely used in Japan, including in the metropolitan areas. However, they have some problems, such as limited use of regenerative brakes and energy loss. In order to solve those problems and in the aim of streamlining and saving of energy of power system in DC electric railway systems, Railway Technical Research Institute (RTRI) has developed superconducting...
Dr
Guoping Wang
(Institute of High Energy Physics, CAS)
08/07/2014, 14:15
C-13: LNG and hydrogen systems
Poster presentation (105min)
Construction of the China Spallation Neutron Source (CSNS) started in October 2011 and is expected to last 6.5 years. Supercritical hydrogen is used as moderator for coupled and decoupled moderators of CSNS. Cryogenic system provides ~20 K cryogenic hydrogen (at 1.5 MPa) to neutron moderating system, and nuclear heating load is transfer to the helium refrigerator by the circulation of...
Ms
Kim Heesun
(Korea electric power corporation)
08/07/2014, 14:15
C-11: Cryogenics for power applications and transportation
Poster presentation (105min)
The superconducting fault current limiter (SFCL) is an electric power device which limits the fault current immediately in a power grid. Korea Electric Power Corporation (KEPCO) has been developing a 154 kV, 2 kA SFCL since 2011 to protect power grids from increasing fault current and improve stability and quality of electric power. This SFCL adopts 2G YBCO wires and operates at 71 K and 5...
Mr
Thomas M. Kochenburger
(Institute of Technical Thermodynamics and Refrigeration, Karlsruhe Institute of Technology, Germany)
08/07/2014, 14:15
C-11: Cryogenics for power applications and transportation
Poster presentation (105min)
High temperature superconducting devices are currently tested worldwide in many pilot projects for the efficient transportation of electrical energy. Primary cooling down to 65 – 70 K is mostly achieved by either subatmospheric liquid nitrogen, by closed cycle turbo-Brayton plants or by batteries of Stirling cryocoolers. In order to increase the current density in the superconductors, a...
Prof.
Maciej Chorowski
(Wroclaw University of Technology)
08/07/2014, 14:15
C-11: Cryogenics for power applications and transportation
Poster presentation (105min)
Development of oxy-combustion technology requires relatively low purity oxygen (90 - 95% O2) in quantities exceeding the present oxygen production by orders of magnitude. Oxygen of the required purity level can be produced in cryogenic or sorption plants. Both technologies can be coupled with thermal power plants electrically or thermally. The exemplary coupling methods include use of...
Dr
Vladimir Vyatkin
(Kyushu Institute of Technology)
08/07/2014, 14:15
C-12: Various applications of superconductors
Poster presentation (105min)
The structure of the inner conductor of the innovative superconducting DC cable has been discussed and we proposed the optimum structure in which superconducting tapes were arranged to decrease the Lorentz force in local magnetic field. However, the design of the outer shield conductor of the cable that applies the axial magnetic field to the inner conductor by the back current has not been...
Mr
Kyung Hyun Gwak
(Hong Ik University)
08/07/2014, 14:15
C-11: Cryogenics for power applications and transportation
Poster presentation (105min)
Plate-fin heat exchangers are designed and fabricated for an integrated cryogenic system, serving for a 10 kW Brayton cryocooler and a 1 km HTS cable under development in Korea. The main heat exchanger is a counter-flow recuperator between high-pressure and low-pressure helium of the Brayton cooler, and the second heat exchanger is a sub-cooler of liquid nitrogen that circulates through the...
Mr
Koichi Omachi
(Graduate School of Engineering, Okayama University of Science)
08/07/2014, 14:15
C-11: Cryogenics for power applications and transportation
Poster presentation (105min)
We have been developing a cryogen-free superconducting induction motor, which is thermally insulated in a single vacuum vessel, which ensures a high thermal insulation and a short distance between stator and rotator. High temperature superconducting coils are embedded in both the stator and the rotator, and the stator is cooled below the critical temperature Tc with a compact cryocooler...
Mr
Kota Yamaguchi
(Tokyo University of Marine Science and Technology)
08/07/2014, 14:15
C-11: Cryogenics for power applications and transportation
Poster presentation (105min)
A thermosyphon application is considered to be a choice to cool down superconducting rotating machines. The thermosyphon cooling system by using neon gas in the temperature range of 25 K to 40 K has been tested in laboratories, since it possesses advantages of large capacity of heat transport, less complicated construction, and smaller volume. Applying the
thermosyphon cooling system to HTS...
Mr
Laifeng Li
(Technical Institute of Physics and Chemistry,CAS (P.R. China))
08/07/2014, 14:15
C-12: Various applications of superconductors
Poster presentation (105min)
Since the 1980s, superconducting magnets have been adopted in the high-gradient magnet separation (HGMS) systems. In recent years, the use of HGMS has become widespread in diverse industries ranging from waste water purification of steel production to coal desulfurization. Here, we introduce basic concepts of magnetic separation and design parameters of the magnetic coils. The analysis of the...
Dr
Hirofumi Watanabe
(Chubu University, R&D partnership for Ishikari Superconducting DC Power Transmission System (i-SPOT))
08/07/2014, 14:15
C-11: Cryogenics for power applications and transportation
Poster presentation (105min)
Superconducting power transmission systems have been developed intensively and applied to actual power grids at several places in the world in recent years. This is because the system is recognized as one of the most efficient ways of power transmission in the world. In Japan a DC superconducting power transmission project, which consists of construction and operation of two DC superconducting...
