• Journal of the Korean Society of Marine Environment & Safety
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• v.8 no.1
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• pp.15-52
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• 2002

According to International Maritime Organization. more than 50% of cargoes transported by sea today can be regarded as dangerous or hazardous ones, mainly consisting of chemical cargoes in bulk, likely solid or liquid and other materials, such as gases and products for and of the oil refinery industry. 46% of total cargoes handled in ports of Korea in 1999. is said to be dangerous cargoes. These dangerous and hazardous cargoes are quite within a high realms of possibility of accidents, likely to be grave disaster. This paper reviews current risk management system for the dangerous and hazardous cargoes sea-transportation, mainly focusing on the prevailing regal regimes in both USA and Korea. And it aims to suggest some points for advancing the existing Korean system.

• Journal of the Korean Professional Engineers Association
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• v.33 no.5
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• pp.28-32
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• 2000

It is about time for Korean plant engineering industry to evaluate what they have achieved in the past and to foresee how this industry will change in the future. Since the IMF infection in the late 1997, Korean engineering industry has become to realize how important it is to formulate plans and solutions in order to be successful in the EPC industry. Korean plant engineering has accomplished remarkable growth in terms of its sales volumes and sizes of petrochemical & refinery plants they have executed, but unfortunately they have not done a nice job of generating sufficient profits. Many Korean engineering companies have carried out million and billion dollars of "projects" where they unfortunately suffered deficits, and as a result, some companies actually went deteriorated and were merged, and acquired by bigger companies. Based on above philosophy, the ten(10) key factors are suggested regarding a proposal for role and mission of chemical engineering professional engineer in plant engineering industry in the 21\\\" century.

• Proceedings of the Membrane Society of Korea Conference
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• 1995.09a
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• pp.15-20
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• 1995

Two membrane-related research projects are now being developed in Japan and their main target is to develop new inorganic membranes. The first project is the R & D of membranes for carbon dioxide recovery at high temperature, conducted by the Japan Fine Ceramics Center (JFCC) and Japan Fine Ceramics Association (JFCA) under the supervision by the New Energy and Industrial Technologu Development Organization (NEDO). The second one is the R & D of membranes for petroleum refinery and chemical processes, conducted by the Japan High Polymer Center (JHPC) under the supervision by the Petroleum Energy Center (PEC). Cooperating with these projects researchers in many universities and research institutes have been publishing many interesting data of inorganic membranes manyfactured by various methods. Many such results are summarized and reported.

• 한국전산유체공학회:학술대회논문집
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• 2007.10a
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• pp.272-276
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• 2007

In this paper, we researched a parametric study in flow control system using louver with numerical method. Generally, for the large fans with constant rotational speed, the louver can be used to control the flow rate. The opening and closing of louver can make a some change of flow properties generated by a large fan. To develope the relation between the opening angle of louver and flow rate(or pressure difference), we simulated the flow past the modelled louver installed in a virtual wind tunnel. For the various angles, the mean flow properties are investigated and parameterized with a given boundary condition. The research result can be used directly to design the flow control system of large constant-speed fans, which are often applied to petrolic refinery system.

• Proceedings of the KSME Conference
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• 2003.04a
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• pp.598-603
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• 2003

During the last ten years, the need has been increased for reducing maintenance cost for aged equipments and ensuring safety, efficiency and profitability of petrochemical and refinery plants. RBI (Risk Based Inspection) methodology is one of the most promising technologies satisfying the need in the field of integrity management. In this study, a user-friendly software, realRBI for RBI based on the API 581 code was developed and a quantitative analysis was performed for over 500 equipments in a domestic plant whose operating time reaches about 13 years. Current risks for each equipment parts were evaluated and risk based prioritization were determined as a conclusion.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2000.11a
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• pp.547-550
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• 2000

The steel pipe for fluid catalytic cracking(FCC) unit. petroleum refinery, is lined with refractory to protect the system from high-temperature of the internal flow. The property of the refractory has an effect upon the stress analysis of FCC unit. Because 1-D pipe element or 3-D shell element are usually used in commercial codes of stress analysis to evaluate the structural soundness, the equivalent elastic modulus considering steel and refractory should be applied. In the research, the theoretical method to obtain the value of the equivalent property is introduced and then the stress analysis is carried out with the part of FCC unit.

• Journal of the Korean Society for Precision Engineering
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• v.28 no.2
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• pp.133-139
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• 2011

We have performed optical design of light guide plates (LGPs) for a photobioreactor by using an illumination design tool. An LGP having light emitting diodes (LEDs) as a light source on the four sides was designed by optimizing the distribution of LGP patterns and design of another LGP, on top of which sunlight was focused by a Fresnel lens, was executed. Finally, a hybrid-solar-and-LED-lighting scheme was described. Detailed design process and optical performances of the designed LGPs are presented.

• Nuclear Engineering and Technology
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• v.44 no.8
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• pp.971-976
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• 2012

Silica-coated Au with Ag, Co, Cu, and Ir bimetallic radioisotope nanoparticles were synthesized by neutron irradiation, after coating $SiO_2$ onto the bimetallic particles by the sol-gel St$\ddot{o}$ber process. Bimetallic nanoparticles were synthesized by irradiating aqueous bimetallic ions at room temperature. Their shell and core diameters were recorded by TEM to be 100 - 112 nm and 20 - 50 nm, respectively. The bimetallic radioisotope nanoparticles' gamma spectra showed that they each contained two gamma-emitting nuclides. The nanoparticles could be used as radiotracers in petrochemical and refinery processes that involve temperatures that would decompose conventional organic radioactive labels.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2004.05a
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• pp.657-662
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• 2004

This paper presented is a case study of a real compressor rotor of a refinery plant for high speed balancing of flexible rotor. The rotor was tested in the expert high-speed balancing facility established by KIMM at early 2004. The capability of the facility can reach 40000rpm in rotation speed and 8 ton in rotor weight for high-speed balancing. The facility performs multi-plane at-speed balancing using influence coefficient from the vibration data measured at two pedestals. The test rotor had exceeded permissible criteria of vibration at initial run. But by processing a low-speed balancing at 1000 rpm and six trial run trying to calculate influence coefficient of rotor to the range of operating speed, the final result of high-speed balancing revealed a remarkable reduce of vibration at pedestal of the rotor.

• Proceedings of the KWS Conference
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• 2004.05a
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• pp.327-329
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• 2004

Reliability evaluation of the welded structure for industrial structures/facilities such as power plant and petro-chemical refinery facilities is very important, and especially the reliability diagnosis of the structure is based on the exact evaluation of materials properties. But, the conventional Pre-Qualification test had the difficulty of evaluating the real material properties in the field because the test was made on the specimen with the simulated welding for the in-field welding condition. Therefore, a continuous indentation technique was proposed for simple and non-destructive testing of in-field structures and for selective testing of local range such as heat affected zone and weldment.