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VegnaduzzoAzienda Agricola Vegnaduzzo

Manager: Azienda Agricola Andrea Vegnaduzzo srl
Location: Arzene (Pordenone, Italy)
Plant: 1 x ZE-150-LT power generation module
Application: Primary energy production in connection with a boiler fueled by chicken dung


Mappa Vegnaduzzo The core business of the  Vegnaduzzo poultry farm in Arzene is to raise broilers, i.e. meat chickens. They chose to solve their chicken dung disposal problem by burning it into a special boiler to produce overheated water which, in turn, is fed to an ORC system to produce electric power, thus taking advantage of the incentivated tariffs awarded by the Italian government to newly built small power plants fueled by renewable sources.

The system supplied by Zuccato Energia is a ZE-150-LT ORC power generation module, downgraded from 150 to 140 kWE for fiscal reasons,that operates using the heat generated by the boiler via an overheated water loop.

The ORC system is hosted indoors, in a dedicated room. As the client has a low-voltage connection to the power grid, the inverter system is hosted in external cabinets instead of on board the skid as usual. Another peculiarity is the use of an air cooling system (dry cooler) instead of the traditional evaporative cooling tower to cool the fluid in the condensation phase.

The fuel used in this plant is the so-called "pollina" (i.e. a mix of chicken dung, litter, feed residues and feathers). A recent court ruling has confirmed that this material must be considered as biomass and as such can be used to fuel renewable energy plants.
The use of this material to to produce electric power is very interesting with regards to performance and gives access to state incentives; it is, however, quite a dirty-burning biomass, so the plant was equipped with a state-of-the-art flue gas processing system which makes it conform with atmospheric emission standards.

Below you can find a gallery of photos related to this plant, as well as some videos of the plant in action. Click on an image to enlarge it, click on a video to play it.

A general view of the firmA general view of the firm The fuel storage areaThe fuel storage area The boiler (L) and the exhaust treatment systemThe boiler (L) and the exhaust treatment system The exhaust treatment system with its cover removed showing the cyclonic filtersThe exhaust treatment system with its cover removed showing the cyclonic filters The fuel feeding hopper and the chimneyThe fuel feeding hopper and the chimney General view of the fuel loading screwGeneral view of the fuel loading screw General view of the dry coolerGeneral view of the dry cooler A detail of the dry coolerA detail of the dry cooler A general view of the ZE-150-LT module in its roomA general view of the ZE-150-LT module in its room A detail of the ZE-150-LT ORC systemA detail of the ZE-150-LT ORC system The 150 kWE turbine at the heart of the ZE-150-LT systemThe 150 kWE turbine at the heart of the ZE-150-LT system