摘要:
A graphite crucible for electromagnetic induction-based silicon melting and an apparatus for silicon melting/refining using the same, which performs a melting operation by a combination of indirect melting and direct melting. The crucible is formed of a graphite material and includes a cylindrical body having an open upper part through which a silicon raw material is charged into the crucible, and an outer wall surround by an induction coil, wherein a plurality of first slits are vertically formed through the outer wall and an inner wall of the crucible, and a plurality of second slits are vertically formed from an edge of the disc-shaped bottom of the crucible toward a center of the bottom.
摘要:
Disclosed herein are a CIS/CIGS solar cell and a method of manufacturing the same. The CIS/CIGS solar cell includes: a substrate; first and second molybdenum electrodes disposed on the substrate at a predetermined interval in parallel with each other; a TCO layer disposed on upper and lateral sides of the second molybdenum electrode; a buffer layer disposed on upper and lateral sides of the TCO layer to compensate for a difference in bandgap between the TCO layer and a light-absorbing layer; the light-absorbing layer disposed on the first molybdenum electrode, the buffer layer and an area of the substrate partially opened between the first molybdenum electrode and the buffer layer; and an antireflection layer disposed on the light-absorbing layer to minimize the reflection of externally-applied light. According to the CIS/CIGS solar cell, a buffer layer and a TCO layer are disposed at the rear side of a light-absorbing layer to prevent the amount of light incident upon the light-absorbing layer from being reduced by removing the incident light obstruction structure disposed on the light-absorbing layer, so the amount of light incident upon the light-absorbing layer can be maximized, thereby increasing the energy conversion efficiency of the solar cell.
摘要:
Provided are an adiabatic compressed air energy storage for an automotive vehicle and an energy storage method using the same, whereby a new vehicle function is provided by using available energy from the discharged and expelled energy generated from a driven automotive vehicle or available energy source outside an automotive vehicle, and transforming the generated energy to convenient electric power and efficiently storing the energy, so that electric power can be supplied regardless of space or time constraint during the automotive vehicle in operation or parked or vehicle engine stop in view of the increase demands of electric power in automotive vehicles.
摘要:
A high-temperature polymer electrolyte membrane fuel cell stack may include a plurality of cell units; a cooling assembly including a plurality of first independent cooling plates disposed on top surfaces of the plurality of cell units, respectively, and a plurality of second independent cooling plates disposed on bottom surfaces of the plurality of cell units, respectively; and a support assembly configured to support the plurality of cell units and the cooling assembly; and at least one temperature installed on at least one of the plurality of first independent cooling plates and the plurality of second independent cooling plates.
摘要:
Disclosed is a direct synthesis method of nanostructured catalyst particles on surfaces of various supports. In the disclosed synthesis method of a catalyst structure having a plurality of nanostructured catalyst particles dispersed in a support by a one-step process using a high-temperature high-pressure closed reactor, the one-step process includes supplying the support and a catalyst source into the high-temperature high-pressure closed reactor; supplying an atmosphere forming gas of the reactor into the reactor; perfectly sealing the high-temperature high-pressure closed reactor and heating the reactor to produce the catalyst structure in the reactor under self-generated pressure and synthesis temperature conditions, the catalyst structure including the plurality of nanostructured catalyst particles dispersed in the support; removing internal gases of the reactor to allow the reactor to be in a high-temperature, atmospheric pressure state and supplying an inert gas into the reactor to remove unreacted materials and byproducts remaining in the reactor; and cooling the reactor to room temperature while supplying the inert gas to synthesize the catalyst structure.
摘要:
Disclosed is a burner for generating a reductive atmosphere of exhaust gas in a boiler system of an engine cogeneration plant having a denitrification process. The burner comprises a post-combustion burner for combusting an internal combustion engine exhaust gas, and an auxiliary burner installed in an outer side of the post-combustion burner. The internal combustion exhaust gas is supplied from an internal combustion engine exhaust gas injection port. The auxiliary burner is combined with a fuel injection port through which fuel is supplied, and an air channel through which air inflows. Combustion heat generated by combusting the supplied fuel and air is provided to a combustion chamber of the post-combustion burner through a flame channel.
摘要:
Disclosed is a duplex calorimeter which may measure a duplex calorific value using one device in a thermal energy network based on a duplex heat transaction. The duplex calorimeter which is connected between a first demand side and a second demand side so as to measure a calorific value of heat energy between the first and second demand sides includes a first connection pipe of which one end is connected to a pipe of the first demand side, a second connection pipe of which one end is connected to a pipe of the second demand side, first and second branch pipes which are branched into two directions between the other end of the first connection pipe and the other end of the second connection pipe, a first flow rate measuring part disposed at the first branch pipe so as to measure a flow rate of the heat energy passing through the first branch pipe, a second flow rate measuring part disposed at the second branch pipe so as to measure a flow rate of the heat energy passing through the second branch pipe, a temperature measuring part measuring a temperature of the heat energy in the first branch pipe or the second branch pipe, and a calculating part calculating the calorific value based on the flow rate measured by the first flow rate measuring part or the second flow rate measuring part and the temperature measured by the temperature measuring part.