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MOLTEN CARBONATE FUEL CELL (MCFC) 100 KW COGENERATION POWER PLANT

Ziel

The aim is the design, manufacturing, assembling/testing of an innovative 100 kW Power Plant that uses Molten Carbonate Fuel Cells. The MCFC is an innovative electrochemical process that converts directly, cleanly and efficiently fuel and air into d.c. electric power/heat. Other innovative aspects deal with fuel treatment, electrical power conditioning and control systems which, in spite of the use of some commercial components, need to be tailored in order to accomplish a number of special requirements. The proposed plant represents a "first of a kind" employment of the MCFC technology in an utility environment; its scale can be considered as the "lowest common denominator" for a prototype that enables to establish the technology readiness to proceed toward other larger commercial size "megawatt class" MCFC Power Plant.
The electrical efficiency for MCFC systems is expected to reach up to 55%; the perspective for the near future is to increase the efficiency and reach up to 60%; the net primary energy requirement significantly reduced in comparison with the conventional power plants and the possible pay back to about 7-8 years.
Production of the documentation concerning : general turn over specification and C.U. turn over procedure documents, functional typical diagram and C.U. instrument and electric diagram documents, C.U. lay-out drawings, cathodic and anodic isometric drawings, cathode air processor system specifications, data sheets, functional control diagram, turn over procedure, schemes and drawings, site lay-out drawings, purchasing specifications and documents, ordering, orders follow up.
The cogeneration power plant will use a pressurized MCFC stack integrated with a set of ancillary devices (the "Compact Unit", or CU), coupled with a set of accessory components ("Balance of Plant"). Generally this self-contained d.c. power generating module (the CU) consists of one (or more) 100 kW MCFC block located next to the integrated ancillary section. The ancillary section (which includes Sensible Heat Reformer, Catalytic Burners, Recycle Blowers) integrates all components specific to the operation of the MCFC stack, as a close coupling is critical to secure a high efficiency operation, to prevent leakage and heat losses, and to limit costs.
Moreover, this concept permits a common cell stack design for a large variety of both application and fuel gases as, by virtue of its sensible heat reformer, the design is compatible with processed gas from all gasifiers.
These specific features, the design and/or use of accessory components particularly tailored to this project and the general MCFC technology performances will provide an electrical efficiency of up to 60% and an overall efficiency (electricity and heat) of up to 90%. By this way MCFC systems should quickly capture an interesting market niche.
Minimum capital costs are obtained by maximising the power output per unit and by providing for complete unit assembly and checkout in the factory. The resulting design requirements are to operate at pressure condition in order to reduce cell stack and piping size and to fabricate a vessel assembly within dimensions and weight compatible with road transportation.
On these bases, a reduction from the present costs (still including a great share of engineering) to the final expected ones (1000-2000 $/kW depending on plant size and fuel treatment system) is expected. A relevant contribution to this reduction will come by a gradually increasing use of commercial components for the Balance of Plant.
Minimum maintenance costs are obtained by accessible non-stack components and a Sensible Heat Reformer integrated to the stack but external to the active area of the stack.

Aufforderung zur Vorschlagseinreichung

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Koordinator

ANSALDO RICERCHE S.R.L.
EU-Beitrag
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Adresse
Corso Perrone 25
16152 Genova
Italien

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