%20copy2%20copy.webp)
A Variable Frequency Drive (VFD) System improves the energy efficiency of pumps and fans that use electric motors, by using VFDs to control the speed of these motors based on demand (as measured by temperature & pressure sensors) and not fixed speed. This prevents excessive energy consumption and helps reduce emissions.
Cooling pumps and ventilation fans used onboard are typically designed for extreme operating conditions (for example: a sea water temperature of 32°C). However, everyday operations rarely come close to such conditions. A VFD system saves energy by continuously monitoring the actual operating conditions and optimises the motor speeds accordingly to match the required flow and temperature condition for every situation (as opposed to operating at fixed max. speed).
This saves energy as according to the affinity laws for pumps and fans a 10% reduction in speed will save ~27% of the consumed power. Manta Marine’s VFD system records & displays energy, fuel and CO2 savings in real time.
Manta Marine Technologies is uniquely positioned as your sole turnkey VFD system provider. We follow the project from the initial design phase through installation and ongoing technical support while the vessel is in operation.
We have VFDs & control interfaces installed in 400 vessels to date for various pumping and auxiliary operations and have more than 10 years of experience.
There is no need for additional suppliers or sub-suppliers - Manta Marine can take care of the whole project, from project management through to commissioning. Installation can be carried out during dry docking, at berth or under operation. We have dedicated teams in Gdansk, Rotterdam & Shanghai for installation & supervision and we will adjust our installation efforts to the operational pattern of your vessel.
Manta Marine provides high quality VFDs from leading suppliers according to customer requirements. The VFDs are marine type and are approved by the major class societies. A variety of cabinet solutions are available, such as wall or floor mounted cabinets with a range of IP classes to meet the specific needs of your vessel.
The VFD system is designed to interface to the existing group starter so that the start, stop and fault handling is same as prior VFD conversion. This results in no new interfaces for crew, and all existing indications are kept intact.
Due to safety requirements dictated by the classification societies, bypass switches are required in some cases for pumps and fans with VFDs installed. This requirement is dependent on the classification society in question, and existing pump or fan redundancy setup (according to ISO 8861 standards calculations). We offer both manual and automatic bypass switches and will evaluate the requirement together with the customer and class society.
MMT will ensure plan approval of the VFD solution. The following engineering documents will be provided to the respective classification society:
"FuelOpt has transformed our fleet’s fuel efficiency beyond expectations. With real-time adjustments and seamless integration, we’ve seen immediate cost savings and improved operational performance across all vessels"
Christoffer has an extensive background in engineering and he has been driving the development of SOx scrubber-, SCR-, Wind Assisted Propulsion- and Shore Power Systems. He has previously had roles in Manta Marine as Electrical/Automation Manager, Technical Manager and Engineering Manager.
Christoffer has an extensive background in engineering and he has been driving the development of SOx scrubber-, SCR-, Wind Assisted Propulsion- and Shore Power Systems. He has previously had roles in Manta Marine as Electrical/Automation Manager, Technical Manager and Engineering Manager.
