GTT (Gas Turbine Technologies) and Politecnico di
Torino, both located in Torino (Italy), are involved in the
design and installation of a cogenerative plant which will use
the power and heat produced by the CHP 100 kWe SOFC Field
Unit (Siemens-Westinghouse), which will start the operation in
the May 2005 and will supply electric and thermal power to the GTT factory.
The energy will be provided by the plant in three different
forms: DC net power, heat for winter heating and cold water for
summer conditioning of offices.
The system has been designed with the aim of using the
maximum thermal energy recuperated from the exhausts of the
cell: in winter the heat will be used to warm some offices
rooms, while in summer it will feed an absorption chiller
producing cold water for a system of fan-coils. Moreover, the
plant has been designed to the highest degree of flexibility, in
order to maximise the SOFC energy flows utilization. A better
management of the heat, in fact, will make possible a
meaningful saving of traditional fuel, thus allowing a lesser
emission of polluting substances and a smaller expense for the
conditioning of the factory during the whole year.
The aim of this paper is to explain and focus the concept
and finality of the solutions for the integration of this new
cogenerative engine with the existing factory. The whole plant
has been designed in order to allow the achievement of the
planned testing activity concerning the cogenerative
performance of the system with the SOFC generator running in
different conditions (current densities, temperature, etc.). The
results of the test activity will supply useful indications about
further design and application of cogenerative plants running
with a SOFC generator.