Beginning in the second half of 2019, Decsa was engaged by its own pioneering oleochemical customer to design and supply new cooling towers to serve their plants.
Decsa installs new cooling towers
Important order for Decsa. For a major oleochemicals company in Cremona, Italy, the Italian company specializing in the manufacture and sale of cooling towers, evaporative coolers, and evaporative condensers was actively involved in the design and supply of new cooling towers to serve their plants: one of 1,750 kW to serve the fractionation plant; two of 3,000 kW each to serve the distiller.
The client, in addition to requiring a guarantee on the thermal performance of the cooling towers, requested that the design should stipulate that the towers, in addition to proper sizing, should first and foremost meet quietness criteria. Since the installation is in the city center, it was necessary to keep the noise level as low as possible in order to comply with the noise limits (60 dB(A) at the plant boundaries.
Reduce electrical self-consumption
Plants and towers were designed to ensure a service life of at least 20 years and minimize maintenance
In addition, the plant and towers were to be designed to ensure a service life of at least 20 years and to minimize and facilitate routine maintenance. Of course, performance was also at the top of the wish list in terms of energy savings: the proposed solution had to reduce electrical self-consumption due to the motors in the cooling towers.
An additional requirement was to provide remote management/control. The choice fell on three cooling towers at open circuit TMA-EU 29-436GX series, while to minimize noise, Axilent fans with very low noise emissions were installed on the towers.
Energy conservation was addressed, first and foremost, by choosing towers with axial fans, which are much more efficient than centrifugal fans.
Communication modules
In addition, all motors were connected under inverters and managed by PLCs with the logic of 'temperature tracking' operation, in order to commit the minimum possible power to reach the required target.
Finally, the power and control panels were equipped with communication modules to ensure the possibility of command and management from the control room.
