One of Torraval’s latest projects has been the complete revamping of 7 cells of the cooling tower at an industrial biofuels plant in Castile and León, located in Salamanca. The company specializes in transforming agricultural raw materials, such as cereals and plant derivatives, into bioethanol, while also producing by-products for animal feed and generating energy through cogeneration systems.
A project adapted to the cooling water conditions
During November and December 2025, Torraval carried out the full revamping of seven cells of the cooling tower, reference 7-RM-7284-75KW-1,8 NET, with the aim of optimizing its performance and adapting it to the plant’s new operating conditions.
The intervention responded primarily to changes in the characteristics of the cooling water. The reduction in suspended solids content in the process water made it possible to replace the original splash fill — designed for more demanding conditions — with a mixed NET-type fill, which is technologically more efficient and better suited to the current operation.
In addition, the refurbishment was designed to meet the increased flow rate requirements requested by the client. The tower’s ability to operate with a higher circulation volume has increased its heat dissipation capacity and, therefore, improved the overall performance of the installation in terms of dissipated kW.
Thanks to this modernization, the tower significantly improves its operational efficiency, combining greater heat exchange capacity with a solution optimized for actual process conditions.
The fill replacement also involved the installation of a new beam support system for the new fill, as well as adjustments to mechanical components to suit the new configuration, such as modifying the fan blade angle.
New support structure for the NET fill
The project execution was planned over 13 days of intervention, organized into two work shifts of approximately 13 people each, with 8-hour workdays carried out on business days.
