Caso

Cómo conseguir ahorros anuales de 225.000€ en refrigeración industrial

- Ahorros energéticos del 33%
- Ahorro anual de 225.000€
- 1,8 años de amortización

Descubre cómo nuestra oferta digital e inteligente Grundfos iSOLUTIONS proporcionaron importantes ahorros energéticos y la consecuente optimización del sistema para un fabricante especializado en refrigeración industrial.

Un fabricante líder de motores y turbinas del Reino Unido recurrió a Grundfos por su conocimiento y experiencia en sistemas de refrigeración. Su objetivo, reducir los gastos energéticos del sistema; nuestra propuesta, optimizar el rendimiento a través de Grundfos iSOLUTIONS y del asesoramiento exclusivo de nuestros técnicos. Descubre los beneficios y ahorros obtenidos a raíz de las mejoras implantadas.

DESCARGA EL CASO (V.O. EN INGLÉS)

Existing system

Existing pumps:
x19 Grundfos CR 32-10

Existing control mode:
Fixed speed

Existing operation mode:
Uncontrolled, all pumps running at
full speed (100%)

Measured P1:
22.65kW per pump

New system

New selected system:
All existing pump replaced by x19 Grundfos CRE 32-7 with integral pressure sensors + small pressure tanks

New control mode:
Constant pressure, with a pressure setpoint to respond to system needs - 12,6 bar discharge pressure instead of 16 bar

New operating mode:
VFD operating mode controlled by a digital signal from the pressure sensor, with a start/stop input signal from a PLC and output relays for run and faults.

New load profile:
Constant pressure operation at reference duty point of 30m3/h @ 126 mH2O

Solution & outcome

The new solution is based on E-pumps, CRE 32-7 pumps with pressure sensors, and a small break tank. The new control mode is constant pressure, while pumps automatically stop when they’re not needed.

Easy operation

Grundfos iSOLUTIONS ensures pump operations always match system loads, resulting in maximum efficiency and minimum energy use. Our controls and integrated frequency converters ensure increased system intelligence, flexibil-ity, and the lowest life-cycle costs.

Full Control

Uncontrolled pumps have a huge influence on how efficiently other individual components in a unit cooling circulation system work. And they exert a major influence on overall system performance. That’s why Grundfos iSOLUTIONS and E-pumps were chosen in this critical process.

Maximised reliability

To guarantee performance, Grundfos performed a full system audit and provided a written commitment on expected future system performance before the retrofit. This has resulted in maximum reliability for the entire cooling system.