Abstract:
PURPOSE: An operation control method of a home fuel cell system is provided to improve operation efficiency of a fuel cell by predicting the power and heat quantity according to the used environment, and the required power and heat quantity. CONSTITUTION: An operation control method of a home fuel cell system comprises the steps of: (S01) computing demanded power required for home; (S02) computing demanded quantity of heat required for home; (S03) computing fuel cell generation power generated from a fuel cell(11) according to the computed power and heat; (S04) computing the heat quantity generated from the fuel cell and the heat quantity generated from the fuel reformer; (S05) computing power follow-up working costs according to required power, the heat quantity generated from the fuel cell, fuel cell working costs from the heat quantity generated from the fuel reformer, fuel reformer working costs, cooling device working costs, and auxiliary boiler working costs; (S06) computing heat follow-up working costs according to the required power, fuel cell working costs from the power generated from the fuel cell, and system power supply costs; and (S07) controlling the fuel cell system with one control of power follow-up control or heat follow-up control by comparing the power follow-up working costs with the heat follow-up working cost.
Abstract:
PURPOSE: A sulfonic acid polymer electrolyte composite membrane and a producing method thereof are provided to simply produce the polymer electrolyte composite membrane with an improved hydrogen ion conductivity, and to reduce the producing cost. CONSTITUTION: A producing method of a sulfonic acid polymer electrolyte composite membrane using acrylate monomer-acrylamide cross link comprises the following steps: synthesizing an acrylate monomer with a sulfonic acid group, a bisacrylamide cross-linking agent, an initiator and water; depositing the mixture to a porous polymer supporter; and forming the electrolyte composite membrane after laminating the porous polymer supporter in between PET films and cross-linking.
Abstract:
A method for manufacturing crosslinked vinylsulfonic acid polymer electrolyte composite membranes is provided to a polymer electrolyte composite membrane having excellent ion conductivity and high durability. A method for manufacturing crosslinked vinylsulfonic acid polymer electrolyte composite membranes for fuel cells forms membranes by synthesizing polymer electrolyte crosslinked with a bisacrylamide-based crosslinking agent containing vinyl sulfonic acid and hydroxyl group to a porous polymer support. The cross-linking agent is at least one selected from N,N'-(1,2-dihydroxyethylene)bisacrylamide or bisacrylamide including -OH group.
Abstract:
A photo-crosslinkable aromatic polymer composite membrane is provided to ensure excellent tensile strength and methanol permeability stable to 1/2 level compared with commercial membrane, and to be insoluble in organic solvent. A method for manufacturing a photo-crosslinkable aromatic polymer composite membrane comprises the steps of: synthesizing a photo-crosslinkable ion conductive polymer electrolyte which directly polymerizes a polymer having a repeating unit represented by chemical formula 1; dissolving the polymerized polymer in polar solvent, laminating it between PET films by impregnating a microporous hydrocarbon-based base membrane with the solution and then photocrosslinking and heat-treating it; and charging and photocrosslinking pores of synthetic polymer electrolyte.
Abstract:
A performance tester of a duplex ejector for a fuel battery is provided to reduce costs when performs a performance test, and to reduce the malfunction generated in the drive of a tester. A performance tester of a duplex ejector for a fuel battery is characterized in that the fluid is supplied by the suction force of an ejector(E1, E2) generated by the progressing of the driving fluid; the supplied fluid performs the fuel function in the fuel cell stack; the remaining fluid is circulated by an ejector; the pipe(P) where the driving fluid is progressed is fractionized to the several sections, and the ejector is installed at the respective fractionized pipe; the piping inhaling the remaining fluid is connected to each ejector.
Abstract:
A device for forming a partial oxide layer on a thin plate is provided to dip the thin plate into an electrolytic solution in order to form a passivation layer to perform anode oxidization. An apparatus for forming a partial oxide layer includes a thin plate(10), an electrode net(20), and anti-oxidation frames(101). The thin plate is provided thereon with an oxide layer which is selectively formed. The electrode net is disposed in an area, in which the oxide layer is formed, on the thin plate. The anti-oxidation frames are provided at front and rear surfaces of the thin plate to prevent the thin plate from being exposed to an electrolytic solution. The thin plate includes aluminum.
Abstract:
An electricity generation device for education using a fuel cell and an electrolyzer is provided to allow the procedure from the generation of hydrogen to the generation of an electric energy to be embodied in an integrated device. An electricity generation device for education comprises a base(4); a fuel cell(1) which is mounted on the base and can be assembled or disassembled; a fuel supply part(2) which is mounted on the base to supply fuel to the fuel cell and can be assembled or disassembled; and an operation machine part(3) which is mounted on the base and is electrically connected with the fuel cell so as to be operated or emit light by the electric energy generated from the fuel cell.
Abstract:
A two-way variable nozzle ejector for a fuel cell is provided to improve the recycling efficiency of fuel by the variable respond to the change of the operation condition of a fuel cell. A two-way variable nozzle ejector comprises at least two nozzles for control the flux and flow rate on the channel of a suction chamber, and a needle for allowing the axis to be controlled respectively in the each nozzle, thereby allowing the cross-sectional area of the axis of the nozzle to be varied. Also the two-way variable nozzle ejector comprises a suction chamber(110) having a channel(113); a first nozzle(120); a first needle(130) for varying the axis cross-sectional area of the first needle; a second nozzle(140); and a second needle(150) for varying the axis cross-sectional area of the second needle.
Abstract:
Provided are a unit cell or stack for evaluating the performance of a fuel cell which minimizes the partial temperature deviation of cells, and a method for evaluating the performance of a fuel cell by using the unit cell or stack. The unit cell(100) or stack is provided with a semiconductor thermoelement(200) which is attached at the side part of a unit cell or a stack. Also the unit cell or stack comprises a membrane electrode assembly which comprises a fuel electrode, an electrolyte layer and an air electrode; a separator; and a current collector(102), wherein a semiconductor thermoelement is attached to the current collector. Preferably the semiconductor thermoelement has a plate form, covers the side part of the unit cells and is made of an alloy comprising at two, three or four elements selected from Bi, Te, Se, Pb and Ge.
Abstract:
본 발명은 금속선의 일측단부가 매입된 고분자 전해질막에 전극이 결합되어 고분자 전해질 연료전지의 전체적인 성능 뿐 아니라, 국부적인 성능까지도 측정할 수 있도록한 고분자 전해질막에 금속선이 매입된 고분자 전해질막/전극 접합체 및 그 제조 방법에 관한 것이다 본 발명의 금속선이 매입된 고분자 전해질막/전극 접합체는, 두 장의 나피온 쉬트(22A)(22B) 사이에 도포된 나피온 용액(S)속에 금속선(21)의 일측단부가 침적된 상태에서 가압되어 일체화된 두 장의 나피온 쉬트로 이루어진 고분자 전해질막(22)과, 이 고분자 전해질막(22)의 양면에 전극이 되는 촉매층(23)(23')이 적층된 구조로서, 이는 바닥에 펼쳐진 Na + 형태의 나피온 쉬트(22B)에 금속선(21)의 일측단부를 위치시키고 상기 금속선이 침적되도록 나피온 용액(S)을 도포하는 단계(100)와; 나피온 용액이 도포된 나피온 쉬트(22B) 위에 다른 한 장의 나피온 쉬트(22A)를 적층하는 단계(200)와; 금속선과 나피온 용액이 개재된 상태에서 적층된 상기 두장의 나피온 쉬트(22A)(22B)를 가압하는 단계(300)와; 백금/탄소 촉매 등으로 이루어진 촉매 잉크가 코팅된 필름(42)을 상기 금속선 매입 고분자 전해질막(41)의 양면에 적층한 후 열간 가압하여 상기 금속선 매입 고분자 전해질막(41)의 양면에 전극인 촉매층을 형성시키는 단계(400)와; 상기 단계에서 얻어진 Na + 형태의 접합체(43)를 황산 용액중에 침적시키는 단계(500)와; 황산용액에의 침적에의해 H + 형태로 전환된 접합체(44)를 탈이온화된 물로서 세정하는 단계(600)로 이루어진다. 본 발명의 금속선이 매입된 고분자 전해질막/전극 접합체는 고분자 전해질 연료전지 전체 뿐 아니라, 양극과 음극의 개별적인 전극 전압과 전류 밀도와의 상관 관계를 측정 가능토록 하여 연료전지 전체 및 각 전극의 성능을 실시간으로 평가할 수 있도록 함으로써 연료전지의 성능 향상을 위한 세부적인 접근을 가능하게 해주는 이점이 있다.