De Pra winery

Background

The importance of De Pra winery is recognized in the wine scene of Treviso area. Founded in 1959, the company produces every year over 19000 hl of DOP and IGP wines which are highly appreciated both in Italy and abroad.

Purposes

Thanks to our high-level expertise in the beverage market, we were commissioned to design and build a new plant for refrigeration in the vinification and bottling processes that would ensure top performance in terms of energy saving and environmental sustainability.

Project

For refrigeration in the vinification and cellar air conditioning processes, we have designed a 400 kW (114 RT) Turbomiser air-cooled chiller with oil-free centrifugal compressors. The chiller is equipped with compressor boxes, DNC for dynamic noise regulation and HFO-1234ze, the most ecological refrigerant available on the market (GWP < 1). The unit ensures an EER level of 4,115 (W/W)*.

For the cooling process of the autoclaves, we have installed the brand new Circlemod, a 150 kW (42 RT) modular air-cooled chiller with semi-hermetic inverter compressors, exclusive circular condensers and R290 natural refrigerant (GWP = 3). Monitoring the temperature in autoclaves is of fundamental importance to ensure the high quality of the final product. Thanks to this unit, it is possible to guarantee very high performance at low temperatures during the bottling phase of 1000 hl of wine.

*Cooling kW/RT = 0.92 – Cooling EER BTU/Wh = 12.946