Cases OverviewUnleashing the Power of Flywheel Energy Storage
Flywheel technology, a transformative method of energy storage, is leading industries into an era of new levels of efficiency and sustainability. Key to operating these systems and optimizing their performance are vacuum pumps.
In an increasingly energy-conscious world focused on sustainability, Dumarey Green Powers flywheel technologies have emerged as a remarkable solution for the storage and controlled release of energy, capable of providing rapid power boosts when needed. At the heart of Dumarey’s innovative Peak Power 200 system is a KNF diaphragm pump that ensures optimum performance.
Sustainable Energy Across Industries With Flywheel Technology
Flywheel systems work by using the rotational momentum of a spinning flywheel to both store and release energy as required. Excess electrical energy from generators or other power sources is used to accelerate the rotation of a spinning flywheel and is stored in the form of kinetic energy. Whenever electrical energy is required, the flywheel system’s electric motor acts as a dynamo and converts the kinetic energy back into electrical energy. This process provides seamless energy transfer and ensures a stable and reliable power supply.
These systems can be used in a wide range of applications, making them a versatile choice for many industries. For example, they are well suited for use in uninterruptible power supplies (UPS), providing seamless energy to critical facilities such as data centers and hospitals. In addition, they can be integrated with renewable energy sources, allowing excess energy to be stored for later use. In the industrial sector, flywheels enable rapid power supply in applications such as cranes and manufacturing, ultimately improving overall efficiency. They can also play a key role in maintaining grid stability by regulating frequency and voltage. Their compact design makes them particularly suitable for installations where space is at a premium.
Dumarey Transforming Energy Efficiency
Dumarey Green Power, experts in energy storage and management, demonstrate the practical application of flywheel technology with their Peak Power 200 flywheel energy system. This innovative solution offers the ability to provide a rapid power boost using stored energy, allowing generators or mains connections to be downsized by 1.5 to 3 times without sacrificing performance.
The flywheel energy system is primarily designed for use in scenarios characterized by highly dynamic load cycles, typically involving large electric motors powered by diesel generators. This versatility extends to a wide range of applications including cranes, hoists, welders, mixers and water treatment plants.
By capturing idle energy from the generator and storing it in the flywheel, the flywheel unit provides an instantaneous reactive boost of up to 80kW of real power for 7 seconds, eliminating peak starting currents experienced by the generator, with the potential to halve the size of the generator used, reducing fuel consumption and emissions. One unit installed on a single tower crane can result in fuel savings equivalent to taking 55 cars off the road in just one year.
KNF Vacuum Pumps Enabling Sustainable Flywheel Energy Technology
To ensure that the system operates safely and efficiently, Dumarey Green Power relies on a specially customized NMP 850 HP vacuum pump. By tightly encapsulating the flywheel in a deep vacuum, energy losses due to friction are minimized, thereby maximizing the energy storage capacity of the high-strength flywheels made from advanced materials.
In order to provide a constant vacuum to the flywheel, the NMP 850 HP diaphragm pump has been customized with a double-head housing that accommodates a larger HD BLDC motor and eccentric. It effectively overcomes the challenge of restarting against an initial vacuum pressure of 250 mbar abs. at the vacuum port, ultimately achieving a final vacuum of ≤180 mbar abs. In addition, an HNBR diaphragm is used, specially selected for its durability and compatibility with oil vapors and possible low temperatures. With this precision engineering and the ability to maintain the deep vacuum, the pump plays a key role in maximizing overall performance while minimizing energy loss.
“The reliability of KNF pumps is critical to the optimal performance of our flywheel energy storage systems. Thanks to KNF's precise vacuum pump technology, we are able to provide sustainable, high-performance solutions for a wide range of industries,” explains Alex Keys, Sales and Marketing Director at Dumarey Green Power.
Dumarey’s expert application of flywheel technology, complemented by the engineering excellence of KNF vacuum pumps, provides a powerful solution for improved energy efficiency and sustainability, demonstrating the potential for significant improvements across industries and paving the way for a more responsible and resource-efficient future.
