Abstract: Provided are a heat recovery apparatus based on a fuel cell and an operating method thereof. In the fuel cell-based heat recovery apparatus and the operating method thereof, hot water and steam may be generated by using heat generated while a molten carbonate fuel cell (MCFC) operates to supply the generated hot water or steam to buildings, thereby reducing a rate of operation in cooling/heating equipment using electricity so as to reduce air-conditioning costs.

Abstract: Provided are a heat recovery apparatus based on a fuel cell and an operating method thereof. In the fuel cell-based heat recovery apparatus and the operating method thereof, hot water and steam may be generated by using heat generated while a molten carbonate fuel cell (MCFC) operates to supply the generated hot water or steam to buildings, thereby reducing a rate of operation in cooling/heating equipment using electricity so as to reduce air-conditioning costs.

Abstract: The present invention relates to a humidifying heat exchanger for a fuel cell. The humidifying heat exchanger includes a body comprising a gas inflow hole defined in one end thereof and a gas discharge hole defined in the other end thereof in a longitudinal direction, a first tube disposed within the body, the first tube being spirally wound along the longitudinal direction of the body, a second tube disposed within the body and spirally wound along the longitudinal direction of the body, the second tube being disposed outside the first tube to surround the first tube, a supply unit disposed at a side of the gas discharge hole to supply a mixture of a fuel and water into the first and second tubes, and a discharge unit disposed at a side of the gas inflow hole to discharge the mixture supplied from the first and second tubes.

Abstract: Provided are a heat recovery apparatus based on a fuel cell and an operating method thereof. In the fuel cell-based heat recovery apparatus and the operating method thereof, hot water and steam may be generated by using heat generated while a molten carbonate fuel cell (MCFC) operates to supply the generated hot water or steam to buildings, thereby reducing a rate of operation in cooling/heating equipment using electricity so as to reduce air-conditioning costs.

Abstract: An anticorrosive treatment method for a separator of a molten carbonate fuel cell is provided. As conventional anticorrosive treatment methods for a wet-seal area in an separator, there are a molten aluminium coating method, a physical vapor deposition method, a slurry coating method, a spray coating method, a pack cementation method and a vacuum evaporation method. Defects due to high temperature thermal treatment corrodes even stainless steel base materials to thus shorten the lifetime of the fuel cell. Further, to sufficiently assure an anticorrosive capability of the separator wet-seal area, a coating ratio should be heightened finally, which makes fabrication of the large-area separator difficult, and manufacturing costs high. To solve the conventional problems, nickel and aluminium are coated in turn on a base material of stainless steel or an thin aluminium film is coated or bonded thereon to then perform diffusion process, which simplifies a manufacturing process and lowers a manufacturing cost.