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Box-shaped Pressure Vessel for LNG Developed by KAIST Research Team Earlier today, Korean researchers successfully showcased the installation and operation of a box-shaped, high-pressure tank for the storage of liquefied natural gas in Pohang, Republic of Korea. The development was the first of its kind in the world. Pressure vessels have many applications and are widely used within the petrochemical, energy, and other industrial sectors where the transport and storage of many types of pressurized gases and fluids are essential. Pressure vessels must be designed, manufactured, installed, and operated strictly in accordance with the appropriate codes and standards since they can, in cases of leak or rupture, pose considerable health and safety hazards. Pressure vessels are normally designed in the form of a cylindrical or spherical tank. These shapes are, in principle, highly efficient in withstanding internal pressure, but rather inefficient in terms of space utilization. The tanks fit very poorly within a typically prismatic-shaped room. They cannot be packed closely together, so they do not efficiently utilize the overall space. Moreover, cylindrical or spherical tanks are not easily scalable to very large sizes because the wall thickness of the tank must increase proportionally to its overall radius. Therefore, a large pressure vessel unavoidably will have very thick walls, which are difficult and expensive to manufacture, requiring a great amount of thick-walled steel to be rolled, forged, and welded together. KAIST researchers, sponsored by POSCO, a multinational steel-making company based in Pohang, Republic of Korea, have taken a turnabout approach to construct a pressure vessel that is neither cylindrical nor spherical. Professors Pål G. Bergan and Daejun Chang and of Ocean Systems Engineering at KAIST developed a box-type, large size pressure vessel for the storage and transportation of liquids such as liquefied petroleum gas (LPG), compressed natural gas (CNG), or liquefied natural gas (LNG). The box-shaped pressure vessel has an internal, load-carrying lattice-type structure. The lattice pattern is modular in all three spatial directions, thereby effectively anchoring and balancing pressure forces on the external walls of the vessel. The modular lattice can easily be adapted to prescribed pressure levels as the overall volumetric dimensions are directly linked to the number of repetitive modules. A giant prismatic pressure vessel with a size of 20,000 m3 and a design pressure of 10 atmospheres (10 barg) can be built simply by scaling up a smaller size pressure vessel. It is interesting to note that the thickness of steel walls remains unchanged and that the weight of steel per unit storage volume goes down as the vessel size increases. Professor Chang explained the benefit of a prismatic or box-shaped pressure vessel.“If we use cylindrical pressure vessels to supply LNG fuel for a large container ship, for example, many fuel tanks will be needed. Those tanks will take up large and valuable space onboard because the cylinders have to be lined up. In our case, however, much less space is needed. The operation of a ship becomes simpler with one fuel tank rather than with many. Furthermore, our box-type pressure vessel can be designed with dimensions that precisely fit a ship. For a container ship, there may be room for a substantially higher number of containers to be loaded than when using cylindrical vessels. In a case study on a 13,000 TEU container ship, the value of the increased transport capacity tuned out USD 8.4 million for one year of operation for one ship.”The manufacturing cost of a pressure vessel has been reduced as well. Several types of special steel for cryogenic (low temperature) applications have been investigated in design and analysis studies, and this includes a new type of high-manganese steel that is being developed by POSCO. Regardless of materials, in any instance of large pressure vessels, the new lattice tank technology can offer significant savings of combined capital and operational costs. Professor Bergan was also upbeat regarding the impact of the KAIST technology innovation. “Our box-type pressure vessel represents ground-breaking research. This innovative technology will dramatically change the rules of the game for industry concerning production, transportation, and storage of fluids under high pressure and at low temperatures.”The showcased prismatic pressure vessel was a scale-down model with a volume size of 80 m3 and design pressure of 10 atmospheres. The vessel complies with the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (BPVC), the international standard for the appropriateness of design, fabrication, and inspection of boilers and pressure vessels. It passed the 15 pressure testing in January 2014 and received an accreditation from the ASME BPVC (ASME U2 Stamp). KAIST’s prismatic pressure vessel will be presented and displayed at Gastech 2014, the largest global conference and exhibition in the natural gas, LNG, and hydrocarbons industry. This event will take place on March 24-27 at KINTEX in Ilsan, Republic of Korea. Youtube: http://www.youtube.com/watch?v=woJwc5zisxk&list=TLGOLcI7L6_YYTn0lImPqNyeppQWRXqUt5Picture 1: The prototype of a prismatic pressure vesselPicture 2: A lattice pattern that is lined inside a prismatic pressure tankPicture 3: Above is a container ship having a box-shaped pressure vessel as a fuel tank, and below are traditional cylindrical fuel tanks.
2014.03.25 View 13299
Science Daily: Nanostructured Capsules Could Bring About Paints and Electronic Displays That Never Fade A collaborative research by Professor Shin-Hyun Kim of Chemical and Bimolecular Engineering, KAIST, and his student, Tae-Min Choi, on nano-structural colors with Harvard University was published by Science Daily on March 14, 2014. For the article, please go to: Science Daily, March 14, 2014 Featured Research "Brighter inks, without pigment: Nanostructured capsules could bring about paints and electronic displays that never fade" http://www.sciencedaily.com/releases/2014/03/140314164214.htm
2014.03.17 View 8289
Tae-Wan Kim, a doctoral candidate, receives the best paper award from ECTC The 2014 Electronic Components and Technology Conference (ECTC) will take place on May 27-30 in Florida, USA. Tae-Wan Kim, a Ph.D. candidate at the Department of Materials Science Engineering (MSE), KAIST, will receive the Intel Best Student Paper Award at the conference.ECTC is the premier international conference that brings together the best researchers and engineers in packaging, components and microelectronic systems science, technology and education in an environment of cooperation and technical exchange. The conference is sponsored by the Components, Packaging and Manufacturing Technology (CPMT) Society of IEEE (Institute of Electrical and Electronics Engineering).The paper describes research on novel nanofiber anisotropic conductive films for ultra fine pitch electronic package application, which was written under the guidance of Professor Kyung-Wook Paik of the MSE Department. In the past ten years, two of his students have received the best paper award from ECTC.
2014.03.14 View 10214
KAIST Holds the 2014 System on Chip (SoC) Robot War in August and October Domestic and international competitions for robots with artificial intelligence are organized by Professor Hoi-Jun Yoo of Electrical Engineering. KAIST will host two robot competitions this year: The Robot Integration Festival will be held in August at the Convention Center in Daejeon and the International Robot Contest in October at the Kintex in Ilsan. Participating robots are developed based on the System on Chip (SoC). SoC robots refer to an autonomous robot that has a processor, a memory, peripheral devices, logic, and other system components combined on a single chip, which enables the robots to handle tasks and make decisions without human intervention. The competitions include three entries: Taekwon Robot, HURO-competition, and SoC Drone which was added for the first time this year. The Taekwon Robot involves a one-on-one sparring match, using a Korean traditional martial art, between two robots. Competitors score points based on front and side kicks, as well as punching. The HURO-competition pits robots in a competition to perform assignments such as hurdling, barricade clearing, crossing bridges, and overcoming other obstacles. The SoC Drone evaluates robots' capability to track miniature cars and navigate between buildings while in flight. The drone should have two cameras and a SoC brainboard equipped to offer autonomous, remote-controlled flight. The director of the competitions, Professor Hoi-Jun Yoo of Electrical Engineering at KAIST, commented that with the integration of Korea’s world-class semiconductor technology, the competitions would lead to improvements in robotics engineering and unmanned aerial vehicle technology. The competitions are open to anyone interested in SoC robots and unmanned aerial vehicles. For more information about the competitions, please visit http://www.socrobotwar.org . The application deadline is April 15, 2014.
2014.03.11 View 9753
Book Announcement: Sound Visualization and Manipulation The movie Gravity won seven Oscar awards this year, one of which was for its outstanding 3D sound mixing, immersing viewers in the full experience of the troubled space expedition. 3D audio effects are generated by manipulating the sound produced by speakers, speaker-arrays, or headphones to place a virtual sound source at a desired location in 3D space such as behind, above, or below the listener's head. Two professors from the Department of Mechanical Engineering at KAIST have recently published a book that explains two important technologies related to 3D sound effects: sound visualization and manipulation. Professor Yang-Hann Kim, an eminent scholar in sound engineering, and Professor Jung-Woo Choi collaborated to write Sound Visualization and Manipulation (Wily 2013), which uniquely addresses the two most important problems in the field in a unified way. The book introduces general concepts and theories and describes a number of techniques in sound visualization and manipulation, offering an interrelated approach to two very different topics: sound field visualization techniques based on microphone arrays and controlled sound field generation techniques using loudspeaker arrays. The authors also display a solid understanding of the associated physical and mathematical concepts applied to solve the visualization and manipulation problems and provide extensive examples demonstrating the benefits and drawbacks of various applications, including beamforming and acoustic holography technology. The book will be an excellent reference for graduate students, researchers, and professionals in acoustic engineering, as well as in audio and noise control system development. For detailed descriptions of the book: http://as.wiley.com/WileyCDA/WileyTitle/productCd-1118368479.html
2014.03.10 View 11661
Seo-Eun Lee, an undergaruate student receives the Best Paper Award from Optical Society of Korea Seo-Eun Lee, a student studying at KAIST’s Department of Biological Sciences, has won the Best Paper Award from Bio-Photonics Division at the 2014 Optical Society of Korea Winter Conference, held on 19th February at Daejeon Convention Center. Only one outstanding paper per division is given an award among the total of 270 papers, and it is very unusual for an undergraduate student to win the award in the field that is not her major. Lee has studied cell imaging using holography technology since June 2013 under the supervision of Professor Yong-Geun Park from the Department of Physics. The Optical Society of Korea was founded in 1989, and as the largest academy in the field of optics in Korea, it holds academic presentations, seminars and lectures every year.
2014.03.06 View 9174
Welcoming the Class of 2014 “The four years from today will go quickly, and I urge you to make the most of your time in KAIST, a great educational and research institution where you will explore the frontiers of science and technology and take part in the creation of new knowledge,” President Kang told the freshmen at the convocation ceremony. Freshmen Convocation for the Class of 2014 took place on March 3, 2014 at the auditorium on the main campus. Members of the KAIST community, along with hundreds of parents and guests, welcomed the incoming 800 freshmen, celebrating the beginning of their four-year college life. Kwang-Joon Ahn, a graduate of the Korea Science Academy, and Ha-Rim Jin, a graduate of Daegu Il Science High School, were representatives of the incoming students, and they took the “Class of 2014 Pledge,” a commitment to uphold KAIST’s core values, which is "creativity and challenge (endeavoring spirit)," and to pursue intellectual passion and discovery. President Steve Kang delivered congratulatory remarks, encouraging students to use their opportunities to the fullest while at KAIST to broaden their knowledge and experience. He also stressed the following four important principles they should cultivate to become the leaders of tomorrow: be grateful, excel in their field, keep open minds about what the globalized world would bring, and never give up on their dreams and belief. President Kang said: “Probably, many of you, the graduates of the best high schools in Korea, will find KAIST a tougher place to be in than you imagined. But challenges, particularly intellectual challenges, should be viewed as an opportunity to grow. It is ok to fail. In fact, without risking failures, there won’t be a meaningful growth because the real growth comes from overcoming challenges.” “You can’t avoid failing in the course of your college life, but your perseverance to do it over will allow you to develop the skills and passion needed to become a leader who will contribute to the local community, as well as to the betterment of humanity.” The KAIST Alumni Scholarship Foundation presented a scholarship of USD 3,700 to 24 freshmen. The convocation ended with music performances by members of the student clubs at KAIST.
2014.03.04 View 7591
Spillover Phenomenon Identified Using Model Catalyst System Researchers at KAIST have identified spillover phenomenon, which has remained controversial since its discovery in the early 1960s. KAIST Department of Chemical and Biomolecular Engineering’s Professor Min-Gi Choi and his team has explained the "spillover phenomenon," using their own model catalyst system where platinum is selectively located within the amorphous aluminosilicate. The research results were published on the 25th February online edition of Nature Communications. Spillover refers to a phenomenon that occurs when hydrogen atoms that have been activated on the surface of metals, such as platinum, move to the surface of the catalyst. It was predicted that this phenomenon can be used to design a catalyst with high activity and stability, and thus has been actively studied over the last 50 years. However, many cases of the known catalysts involved competing reactions on the exposed metal surface, which made it impossible to directly identify the presence and formation mechanism of spillover. The catalysts developed by the researchers at KAIST used platinum nanoparticles covered with aluminosilicate. This only allowed the hydrogen molecules to pass through and has effectively blocked the competing reactions, enabling the research team to study the spillover phenomenon. Through various catalyst structure and reactivity analysis, as well as computer modeling, the team has discovered that Brönsted acid sites present on the aluminosilicate plays a crucial role in spillover phenomenon. In addition, the spillover-based hydrogenation catalyst proposed by the research team showed very high hydrogenation and dehydrogenation activity. The ability of the catalyst to significantly inhibit unwanted hydrogenolysis reaction during the petrochemical processes also suggested a large industrial potential. Professor Min-Gi Choi said, “This particular catalyst, which can trigger the reaction only by spillover phenomenon, can be properly designed to exceed the capacity of the conventional metal catalysts. The future goal is to make a catalyst with much higher activity and selectivity.” The research was conducted through funds subsidized by SK Innovation and Ministry of Science, ICT and Future Planning. The senior research fellow of SK Innovation Seung-Hun Oh said, “SK Innovation will continue to develop a new commercial catalyst based on the technology from this research.” Juh-Wan Lim and Hye-Yeong Shin led the research as joint first authors under supervision of Professor Min-Gi Choi and computer modeling works were conducted by KAIST EEWS (environment, energy, water, and sustainability) graduate school’s Professor Hyeong-Jun Kim.
2014.03.03 View 9341
Seung-Han Lee, a doctoral student in electrical engineering, receives the best paper award from ISQED 2014 Seung-Han Lee, a doctoral candidate in the department of electrical engineering at KAIST, received a Best Paper Award from the International Symposium on Quality Electronic Design (ISQED), a high-profile international conference started in 2000 to promote innovation and quality in electronic and engineering designs through inter- and multidisciplinary approaches. The award ceremony will take place at the 2014 ISQED on March 3-5, 2014 at the Convention Center in Santa Clara, CA, USA. Professor Chong-Min Kyung, an advisor to Seung-Han, expressed his excitement about his student's achievement. “This is the first time a Korean has ever received the best paper award at this academic conference. It’s great news to our student as well as to KAIST.” The topic of Lee’s research paper was dynamic cache data management for minimizing the energy consumption of three-dimensional multi-processor semiconductor chips.
2014.03.03 View 9167
KAIST President Held One-year Anniversary Press Conference President Steve Kang had a press conference on February 25, 2014 at the Faculty Club on campus, commemorating the first year of his presidency. About 30 different media representatives nationwide attended the meeting. At his first press conference on the anniversary of his tenure, President Kang described what he has achieved in the past year, which were: 1) rebuilding the campus culture to start a campaign for mutual respect, trust, and open communication by holding meetings with the members of the KAIST community more than 60 times, 2) establishing core values, creativity and challenge, to enhance the fabric of the community, 3) restructuring of the university administration, and 4) the announcement of the mid- and long-term development plan. He also mentioned that “2014 will be another exciting year for KAIST to make more progress” and laid out a few major projects to be implemented this year: launching of the “Committee for Engineering Education Innovation,” “Startup KAIST” (an entrepreneurship program), “Greater Collaboration in Technology Translation and Management with Seoul National University,” and “KAIST End Run” (a global business incubation program).Explanation of 2014 Major Endeavors by President KangFor the past decade, domestic engineering schools weighed SCI dissertation publication more heavily in university evaluations, yielding a world-class research level. However, such an approach resulted in placing less importance on entrepreneurship, commercialization, or creating economic values.As a result, engineering Professors have been evaluated as being too focused on theoretical SCI dissertation research rather than practical research that could yield economic benefits through commercialization of developed technology. In addition, some have criticized that engineering universities have not educated creative researchers demanded by the industry.KAIST has begun responding to these criticisms and has made a few suggestions to strengthen engineering education, promote entrepreneurship in engineers, and globalize Korean venture companies.As part of such efforts, KAIST established the KAIST Education and Research Innovation Committee, composed of various individuals from the industry, research institutes, alumni, faculty members, and others, to discuss ways to reinforce engineering education. A course to encourage entrepreneurship will be implemented.Startup KAIST will develop and commercialize innovative ideas from members of KAIST, and the End Run project will enable students and faculty to establish a global, venture company. KAIST hopes that a new entrepreneurial culture will be created on campus, thereby the research success of KAIST members will lead to commercialization and startups.KAIST plans on releasing free internet lectures as part of its knowledge contribution and sponsoring programs which will level the playing field in eduation.KAIST will establish the KAIST Open Online Course (KOOC). An entrepreneurship curriculum will be developed for KOOC. KAIST will start trials for KOOC from 2015, gradually expanding to include more courses.
2014.02.27 View 8552
Former Minister of Science and Technology, Dr. KunMo Chung, Awarded KAIST Honorary Doctorate KAIST will confer an honorary doctorate on former minister of Science and Technology, Dr. KunMo Chung, at the 2014 KAIST graduation ceremony on Friday, February, 21.Dr. Chung presented the Survey Report for the Establishment of the Korea Advanced Institute of Science (KAIS) to the United States Agency for International Development (USAID) in 1969. This proposal for nurturing the advanced science technology elite and boost Korean industrial development became the foundation for KAIS, which is now known as KAIST.After passing the KAIS Foundation Law in 1970, Dr. Chung designed the faculty room, secured faculty members, and acquired a $6 million education loan from the USAID. Dr. Chung devoted himself to research and teaching. His first appointment was the position of assistant professor at the University of South Florida, followed by research professor positions at the Princeton Nuclear Fusion Research Center and MIT Nuclear Engineering, and an associate professor position in the Department of Electrophysics at the Polytechnic Institute of New York.When KAIS was founded on Feb. 16, 1971, 31-year-old Dr. KunMo Chung became the provost and a professor in the Electronic and Electrical Science Department where he made outstanding contributions to the development of science and technology in Korea.
2014.02.21 View 9379
A student club for education donation at KAIST received an award from the City of Daejeon Education Superintendent One of the student clubs at KAIST, the Midam Scholarship Fund, was awarded by the education superintendent of Daejeon City in recognition of its contributions to the education benefits of underprivileged students in the region.The Midam Scholarship Fund was established in 2009, and since then, it has helped many teenage students who are suffering financial hardships through knowledge donation. The Fund organized private classes and mentoring programs for the students as well as collaborating with other education donation clubs at seven different universities in Korea.The award ceremony was held on February 20th at the City Hall in Daejeon.
2014.02.21 View 6948

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