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Université de Tunis El Manar

Manager: Tunis University "El Manar" • Location: Tunis (Tunisia)
Plant: 1 x ZE-60-DSG module, nominal output 60kWE
Application: Didactic hybrid plant (solar concentrator panels + biogas-fueled gas boiler)


Mappa TunisiaThis plant - the first Zuccato Energia plant in Africa - is located on the Farhat Hached campus ot the Université de Tunis, in the Rommana quarter of Tunis, the capital of Tunisia.
It is an experimental hybrid plant, built in collaboration with several european academic and industrial entities within the frame of the RE.EL.COOP project, financed by the European Union.

This plant shows some parallels with the "UniKore" plant previously built in Enna, Italy by Zuccato Energia. In both plants the goal in not as much energy production as the demostration of various engineering principles, and in both plants concentration-type thermal solar panels work side-by-side with a gas boiler as an alternate power source.

The Tunis plant, however, shows several differences with the Enna one, the main being - for the first time in a Zuccato Energia plant - the use of 160°C saturated steam as vector fluid in direct heat exchange with the working fluid without the use of an intermediate steam/water heat exchanger. The new working point required a full turbine blade redesign, and several modifications were made to the "hot side" of the ORC module, adding various devices to better handle and exploit this new vector fluid.

From the thermal source viewpoint, the plant - located in a small plot adjacent to the campus - relies on a small solar field made of Soltigua parabolic concentrators, using a boiler fueled by the biogas produced in a fermentation plant fed by the food residues of the local universitary dining hall as an alternate heat source. Residual heat from the condensation stage of the ORC is dissipated by a battery of dry coolers.

While the plant as a whole is the concerted effort of a dozen firms, the heart of the whole plant - The ZE-60-DSG Organic Rankine Cycle power module - has been entirely designed and developed in-house by Zuccato Energia. It is a compact, skid-mounted system, which is now hosted - together with the boiler - in a small building adjacent to the main campus building.

The compact size of the ORC module has simplified shipping while its capacity to interface through secure protocols with the web for control, monitoring and diagnostics (a common characteristic of all Zuccato Energia modules) has allowed the company's technicians in Verona to supply real-time assistance to their colleagues commissioning the plant in Tunis.

Below you will find a photo gallery related to this plant. Click on any image to enlarge it.

A general overview of the plantA general overview of the plant The solar field seen from a different angleThe solar field seen from a different angle The white building left of the awning hosts the skidThe white building left of the awning hosts the skid The ZE-60-DSG skid seen from the doorThe ZE-60-DSG skid seen from the door The biogas boiler (R) and the ORC module skid (L)The biogas boiler (R) and the ORC module skid (L) The ZE-60-DSG ORC Module during commissioningThe ZE-60-DSG ORC Module during commissioning A detail of the ZE-60-DSG custom turbineA detail of the ZE-60-DSG custom turbine The dry coolers with the main campus building in the backgroundThe dry coolers with the main campus building in the background The dry coolers from the opposite sideThe dry coolers from the opposite side
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