Abstract: The present invention relates to a structured catalyst for reforming of gasoline and a method of preparing the same, more particularly to a structured catalyst for reforming of gasoline for fuel-cell powered vehicles prepared by wash-coating the transition metal based reforming catalyst on the surface of the ceramic honeycomb support wash-coated with sub-micron sized alumina or its precursor to sufficiently increase the effective surface area and the performance of the catalyst and a method of preparing the same.

Abstract: A heat exchanger of an air conditioner is disclosed whereby refrigerant is not biased to a particular heat exchange line but evenly flows in all heat exchange lines. The heat exchanger includes a housing having air inlets and an air outlet; and a plurality of heat exchange lines each formed inside the housing in a serpentine shape for refrigerant to flow and switch the flow direction. The plurality of heat exchange lines are arranged in such a manner that each line crosses each other before and after the infusion directions of air introduced via the air inlets. Each heat exchange line is substantially the same diameter and length. An air quantity initially contacting each heat exchange line is substantially the same, and a heat exchanged quantity of the refrigerant passing through each heat exchange line is substantially the same.

Abstract: A heat exchanger of an air conditioner comprising: at least one or more refrigerant inlets for connecting a compressor for compressing refrigerant to an expansion device for expanding condensed refrigerant via a piping and for receiving high temperature/pressure refrigerant coming from the compressor via a four-way valve; at least one or more refrigerant outlets for discharging the refrigerant to the expansion device, wherein the number of the refrigerant outlets is greater than that of the refrigerant inlets, such that same performances can be achieved for both the cooling and heating purposes albeit the heat exchanger being simplified in the structure thereof, and manufacturing cost can be reduced to thereby improve the productivity.

Abstract: A capacity-variable air conditioner is capable of controlling capacity and consumed electricity in response to operation mode. The refrigerant compression quantity of a compressor is variably adjusted by control of open/close operation modes via selective combination of open/close valves of bypass pipes and bypass valve of the compressor in response to the operation mode. The capacity-variable air conditioner discharges some of the refrigerant infused into the compressor while the bypass valve of the compressor is opened under energy saving operation mode, such that refrigerant circulation quantity can be adjustably reduced under the energy saving operation mode where load of the compressor is less than that of a normal operation mode, thereby enabling a reduction in the capacity and consumed electricity.

Abstract: A slim-type air conditioner is provided. The slim-type air conditioner blows air by a plate reciprocating back and forth. Accordingly, the air can be discharged through a wide outlet hole, and the size and thickness of the air conditioner can be reduced. Therefore, the convenience of users and installers can be improved.

Abstract: An apparatus for enhancing heat transfer efficiency of an endothermic/exothermic article includes a heat sink disposed on the endothermic/exothermic article to enhance heat transmission, a plurality of fins formed on the heat sink to enhance heat exchange, and a porous medium disposed on the fins to increase cooling efficiency of the endothermic/exothermic article by air flowing between gaps between the fins and the porous medium.

Abstract: Provided is a high-performance heat exchanger. A porous material is formed on one side of the heat exchanger. The porous material exchanges heat with a coolant pipe and/or a fin. Pores formed in the porous material improve exchanging heat with the air, thereby improving a heat exchanging performance of the heat exchanger.

Abstract: The present invention relates to a high performance water gas shift catalyst and a method of preparing the same, more particularly to a high performance water gas shift catalyst comprising active components such as copper (Cu), nickel (Ni) and platinum (Pt) and a ceria (CeO2) support, which has better catalytic activity and thermal cycling durability with minimum platinum supporting amount of 1 wt % or less compared with the conventional Pt/CeO2 catalyst and LTS catalyst, and a method of preparing the same.

Abstract: Disclosed herein is RF modulator with a narrow bandpass filter. The RF modulator for modulating video and audio signals into RF signals corresponding to a frequency band of a predetermined channel includes an oscillation unit for generating a predetermined RF signal suitable for the frequency band of the predetermined channel; a mixer for modulating the video and audio signals using the RF signal generated from the oscillation unit; and a narrow bandpass filter for receiving an RF-modulated signal from the mixer, and passing only a signal of the frequency band of the predetermined channel from among the RF-modulated signal. Therefore, the RF modulator can remove or block unnecessary components such as lower side band and harmonic-frequency signals generated after video and audio signals have been RF-modulated, such that it can prevent interference between channels from being generated, resulting in the creation of more excellent video and audio signals.

Abstract: A method for graphically displaying an audio frequency component in a digital broadcast receiver. The method for graphically displaying the audio frequency component in the digital broadcast receiver includes the steps of: extracting a plurality of frequency-band components associated with an audio stream during a decoding process of the audio stream; and generating graphic data corresponding to the extracted frequency-band components, and displaying the graphic data on a screen. Therefore, a frequency component of the encoded audio stream is efficiently extracted without using an additional device or consuming an additional power, and a user can graphically view a frequency component of audio data on a TV screen simultaneously with listening to the audio data.

Abstract: The present invention relates to a solid oxide fuel cell for internal reforming of hydrocarbons and carbon dioxide, in particular, to a solid oxide fuel cell in which one side of solid oxide electrolyte (YSZ) is attached to an air electrode (La0.8Sr0.2MnO3) and its other side is attached to a catalyst electrode of Ni-YSZ type or perovskite type metal oxide. The electrochemical conversion system using the solid oxide fuel cell permits the occurrence of internal reforming of hydrocarbons and carbon dioxide concomitantly with the coproduction of a syngas and electricity, and overcomes the shortcomings associated with the catalytic deactivation due to carbon deposition and the high-energy consumption.

Abstract: The present invention relates to a structured catalyst for reforming of gasoline and a method of preparing the same, more particularly to a structured catalyst for reforming of gasoline for fuel-cell powered vehicles prepared by wash-coating the transition metal based reforming catalyst on the surface of the ceramic honeycomb support wash-coated with sub-micron sized alumina or its precursor to sufficiently increase the effective surface area and the performance of the catalyst and a method of preparing the same.

Abstract: The present invention relates to an air conditioner capable of performing heat exchange of refrigerant and cooling and heating operations.

Abstract: A condenser where a refrigerant introduced from a compressor is coexisting in super-heated vapor, two-phase and super-cooled liquid states combines a plurality of refrigerant paths within at least one of super-heated vapor and two-phase regions to output the refrigerant to the super-cooled liquid region, and provides a proper percentage of the super-cooled liquid region.