Dry Cooler

In the area of industrial and commercial systems, the control of fans in dry coolers – including dry, wet or hybrid systems – is essential to optimize energy efficiency, ensure the system is kept stable and prolong the useful life of the equipment.

Selpro provides solutions for the active electronic management and control of ventilating systems, ensuring optimal functioning conditions by optimizing dry cooling and avoiding the consumption of water, giving significant benefits also in environmental terms.

Compared to the traditional on/off controls that continuously alternate between zero and maximum power, the proportional control of the fans allows airflow to be adjusted to meet the real cooling requirements. At times of partial load or with lower outside temperatures, the fans work at lower speeds, with significant energy savings, also optimizing the operation of the refrigeration compressor – the most energy-hungry part of the system – and reducing operating costs. This reduction is due in part to free cooling technology which uses outside air to cool the battery without having to use the compressor.

Theaccurate control of speed allows optimal temperatures to be maintained, avoiding overheating the coolant, reducing operating pressure and ensuring that the systems continue to operate on a stable basis..Speed modulation also reducesnoise and the mechanical wear and tear of components such as motors and bearings, significantly increasing the life of the equipment and resulting in lower maintenance costs.

Selpro solutions for dry coolers automatically adjust to the ambient conditions like changes in temperatures and humidity. For example, in colder months, the fans operate at reduced speeds, while the air flow increases in warmer periods to ensure continuous, efficient cooling.

In the adiabatic systems, Selpro proposes an advanced control solution that can manage on-off devices, modulating control actuators, water sprays and adiabatic evaporative panels. In high temperature conditions, the system enables incoming air temperatures to be lowered through controlled evaporation, improving efficiency and reducing water consumption. The automated management optimizes adiabatic automation in accordance with the real ambient parameters, ensuring high performance levels, operational continuity and resource savings. Selpro devices are also equipped with anti-legionella systems to ensure hygienic safety.

For obsolete equipment, Selpro offers a retrofit service with more high-performing components or it canreplace alternating current fans (AC) with electronic switching fans which are more efficient and less noisy.

Plug & Play technology can also be used to simplify installation and integrate it with existing systems, lowering time frames and configuration costs. The main retrofit solutions include:

• Upgrading the electric components to improve performance without replacing the entire system,
• conversion to electronic switching fans for higherenergy efficiency and a reduction inelectricity consumption