• Proceedings of the Korea Society for Energy Engineering kosee Conference
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• 1998.10a
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• pp.174-179
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• 1998

본 연구는 섬유 코팅 건조기에서 사용하고 있는 열풍 건조방식을 촉매버너를 이용한 직접 건조 방식으로 대체하기 위한 것이다. 촉매버너는 파이버 매트를 사용한 확산식 연소 방식을 채택하였다. 확산식 촉매버너는 코팅 건조기와 같은 밀폐형 구조에는 적합하지 않아서 개선이 필요한 것으로 나타났다. 연소용 공기를 촉매버너의 표면에 강제적으로 공급하여 촉매버너의 연소효율을 개선하였다. 아크릴이 코팅된 섬유의 건조 과정에서 발생하는 톨루엔을 회수하여 촉매버너의 연료로 재사용하도록 하였다. 이를 위하여 톨루엔을 사용한 경우의 촉매버너의 최적 설계조건을 도출하였다.

• Korean Chemical Engineering Research
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• v.50 no.6
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• pp.1049-1055
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• 2012

The fiber mat catalytic burner that uses infrared radiative heat obtained by flameless catalytic combustion was manufactured and tested to investigate its combustion characteristics. About 9 to 17% of combustion heat was released by sensible heat during the premixed catalytic combustion depend on combustion condition. To find out radiation intensity with distance between catalytic burner and sample, the equation that calculate the receiving surface of radiative energy under the fiber mat catalytic burner was driven. This equation was well correlated with the drying rate of melamine. The drying experiments were carried out to the melamine, wood chip and agricultural pallet by using the fiber mat catalytic burner and the energy efficiency was calculated from drying rate of them. The energy efficiency of the fiber mat catalytic burner reaches to 79% in maximum for drying of the wood chip.

• Journal of Energy Engineering
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• v.17 no.2
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• pp.100-106
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• 2008

Flameless fiber mat catalytic burners have been known as an effective heat source in industrial drying processes since heat obtained from combustion can be transferred to absorptive body by far-infrared radiation. In order to extend the application of fiber mat catalytic burner, novel fiber mat catalytic burners were manufactured and combustion characteristics of them were investigated. For diffusive catalytic burners, the efficiency of combustion was significantly affected by the installation direction and the temperature of catalytic bed perimeter influenced on the diffusion rate of oxygen which determined the combustion efficiency of catalytic burner. It was seen in premixed catalytic combustion that air content in premixed fuel gas was optimized at slightly higher than theoretical amount of air. Combustion heat released higher than 70% by radiant heat in premixed catalytic combustion likewise diffusive catalytic combustion.

• Transactions of the Korean Society of Mechanical Engineers B
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• v.35 no.7
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• pp.735-742
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• 2011

A catalytic burner that utilizes the thermal energy from fossil fuels without the emission of nitrogen oxides ($NO_x$) has been developed. For this purpose, the newly developed burner has two features: firstly, it is in the shape of a flat mat so as to maximize its heating surface, and secondly, it adopts premixed combustion so that it can be used in a closed space. In the present study, the burner was used in a radiation-type industrial dryer. This dryer yields thermal energy in the form of thermal radiation in the infrared regime, which has been proved to be effective for drying organic substances under low-moisture conditions. Analysis of the experimental data has proved that the thermal efficiency of the dryer is better correlated to the moisture than to the dry rate

• Transactions of the Korean Society of Mechanical Engineers B
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• v.21 no.6
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• pp.822-829
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• 1997

A catalytic burner was studied which can be used as a heater operated in medium temperature. Noble metal catalysts (Pd/NiO) were used, which were supported on alumina wash coated honeycomb. The maximum heat-resisting temperature of the catalyst is about 900.deg. C. Combustion efficiency of the catalytic burner reached more than 99.5 % at the excess air ratio above 1.25.NOx emissions were lower than 1.0 ppm at all operation conditions. The operation condition for a stable catalytic combustion was obtained. It was dependent on the catalyst thickness. The 30 mm thick catalyst showed the widest stable catalytic combustion region. Stable catalytic combustion region of 30 mm thick catalyst was the operation condition of excess air ratio 1.25 - 1.75 and heat flux 7 - 14 kcal/h center dot cm$^{2}$.

• Journal of Internet of Things and Convergence
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• v.7 no.3
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• pp.75-80
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• 2021

Since the optimization of the diesel engine for the ship cannot satisfy the NOx emission limit by the method of reducing the NOx emission, it is necessary to reduce the NOx by post-processing the exhaust gas. In this study, we will review the feasibility of designing a binary nozzle and mixing chamber duct for effectively converting the number of elements into NH3 in the oil burner for the SCR catalyst unit integrated duct in the ship under development through the computational heat flow analysis for the velocity distribution and temperature distribution.

• Proceedings of the KSME Conference
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• 2008.11b
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• pp.2856-2861
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• 2008

A catalytic burner has been developed to utilize thermal energy from the fossil fuel without nitrogen oxides (NOx) emission. The burner is shaped into a mat to maximize the heating surface. Premixed combustion has been developed to be used in a closed chamber, such as a radiation type industrial dryer. The burner yields the thermal energy in the form of thermal radiation in the infrared regime, which is proved to be effective to dry organic substances for low moisture condition. Thermal efficiency including the sensible heat is better correlated to the moisture compared to the dry rate.

• Proceedings of the Korea Society for Energy Engineering kosee Conference
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• 1994.05a
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• pp.98-102
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• 1994

천연가스의 주성분인 순수 메탄에 대한 촉매 산화반응은 Pd촉매가 가장 양호하나 LP가스의 주성분인 프로판에 대해서는 Pt촉매가 가장 양호한 결과를 보였다. 그러나 유황 피독된 Pd촉매는 메탄에 대해 영구피독 현상을 보였고, fresh한 Pd촉매는 연료 중 미량의 유황분량에 의해 반응 개시온도가 지연되는 경향을 보였다. 이와 같은 촉매독 영향이 적은 Rh촉매버너를 개발하여 8000시간 이상 성공적인 연소 실험을 하고 있으며 C 방적의 염색 시험기에 적응 실험한 결과 기존의 적외선 전기 건조기에 비해 에너지 절감은 약30-40%를 기하였고 연료비는 70-80%의 절약효과를 얻었다.

• Proceedings of the Korea Society for Energy Engineering kosee Conference
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• 2007.11a
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• pp.238-241
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• 2007

• Journal of Korean Society of Environmental Engineers
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• v.34 no.12
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• pp.840-846
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• 2012

Global climate changes caused by $CO_2$ emissions are currently debated around the world; green sources of energy are being sought as alternatives to replace fossil fuels. The sustainable use of biogas for energy production does not contribute to $CO_2$ emission and has therefore a high potential to reduce them. Catalytic steam reforming of a model biogas ($CH_4:CO_2$ = 60%:40%) is investigated to produce $H_2$-rich synthesis gas. The biogas utilized 3D-IR matrix burner in which the surface combustion is applied. The ruthenium catalyst was used inside a reformer. Parametric screening studies were achieved as Steam/Carbon ratio, biogas component ratio, Space velocity and Reformer temperature. When the condition of Steam/Carbon ratio, $CH_4/CO_2$ ratio, Space velocity and Refomer temperature were 3.25, 60% : 40%, $14.7L/g{\cdot}hr$ and $550^{\circ}C$ respectively, the hydrogen concentration and methane conversion rate were showed maximum values. Under the condition mentioned above, $H_2$ yield, $H_2$/CO ratio, CO selectivity and energy efficiency were 0.65, 2.14, 0.59, 51.29%.