Inc
-
Professor Sejin Kwon develops thruster for small satellite
- World’s first application of high-performance liquid propellant to small satellite thruster
- Show about four times higher thrust performance than the cold gas thruster of University of Surrey, the state-of-the-art technology in the field of small satellite
- Expect a considerable contribution to the extension of the lifespan and mission range of small satellites
The team of Professor Sejin Kwon (Department of Aerospace Engineering in KAIST/ President Nam Pyo Suh) and Space Solution Inc. (President Jaehun Lee) have jointly developed a micro thruster for small satellite motion-control.
Kwon"s team has succeeded in developing an integrated thruster which can be mounted on a satellite by integrating catalyst reactor and propellant-supplying system, which are the core technologies of small satellite thruster system.
For the first time in the world, Kwon’s team employs a high-performance liquid propellant to the thruster.
In the thruster, liquid-state hydrogen peroxide is dissolved into vapor and oxygen at the catalytic layer to emit a huge amount of heat. And, the emitted heat is converted into the kinetic energy of the gas to produce a propulsive force.
This thruster can perform the motion-control of a several tens-kilogram satellite with a propulsive force of less than one Newton and shows about four times higher thrust performance than the cold gas thruster of University of Surrey, who possesses the state-of-the-art technologies in the field of small satellites.
Professor Kwon said, “Although University of Surrey has also tried to develop a similar system, it’s not yet solved the problem on catalytic reactor bed. I expect this thruster will considerably contribute to the extension of the lifespan and mission range of scientific small satellites. Also, this thruster can be employed for the attitude control of the upper end of the launch vehicle, which is now being developed by the Korean Aerospace Research Institute (KARI).”
<Thruster module for small satellite application>
2006.09.05 View 15871 -
KAIST-Tsinghua High-Tech EXPO 2004
THE KAIST Herald 2004.5.12
By Jong-kyoung KimThe KAIST Herald Staff Reporter
KAIST and Tsinghua University are holding KAIST-Tsinghua Korea-China High Tech EXPO 2004 from July 12 to 14, at the Beijing International Convention Center. The Expo seeks to contribute to economic development through promoting exchanges between exceptional Korean and Chinese start-up companies, and to promote cooperation between high-tech industries and academic institutions through academic and technological exchanges between each nation"s best technology institutions.
The Expo is a big international affair held by a university from Korea and one from China. The Expo is also a means to implement the agreement between KAIST and Tsinghua in 2002 to promote exchanges between the two universities and to conduct international co-research. It is sponsored by various technology institutions of both nations.
The Expo is different from other expos in that it is a specialized expo where Tsinghua-related companies, experts, and buyers participate to discuss the transfer of technologies and to deal in trades. Also, to insure that the Expo is beneficial to participating Korean companies, the Expo plans to offer business talks with at least ten Chinese companies per company. From Korea, thirteen companies from enterprise-incubation center and graduate start-ups with high-tech start-ups in areas of IT, BT, NT and mechatronics that are possible in exporting related products or transferring related technologies are participating. From China, Tsinghua-related companies, China Telecom, China Unicom, and other companies under China Telecommunication Association with other famous Chinese companies are expected to participate.
In addition to exhibitions, co-work between KAIST and Tsinghua"s research centers and KAIST"s Technology Transfer & Exchange Center"s explanation on public technology transfer are taking place during the Expo.
And, after three days of the Expo, about ten companies will move to Chungking, a city in western China to hold a product and technology explanation session.
2004.05.21 View 20832