How do you monitor fuel consumption onboard vessels?
Effective 1st January 2023, both the speed of a vessel and fuel consumption must be monitored and documented to ensure compliance for existing fleets along with the EEXI and CII requirements. We have an easy, non-invasive solution with the Permaflow® ultrasonic flow meter.
Permaflow® is a fixed, clamp-on, ultrasonic transit time flow and heat meter to provide 24/7 fuel consumption monitoring by measuring volumetric, mass and energy flow rates with temperature monitoring. It is a ready to use, non-invasive device, that can be retrofitted with ease and no drilling into pipes is required. The Permaflow® can incorporate different communication modules such as USB, MODBUS, 4 – 20 mA for integration with existing monitoring systems and real-time data transmission.
Be regulation ready with Permaflow®!
Reasons to choose Permaflow®
24/7 VISIBILITY: with a low-cost solution
CONSTANTLY monitor/log over 90,000 measurements
– volumetric flow rate
– mass flow rate
– energy (heat quantity) flow rate
– units displayed in kWh and BTU
VERSATILE: variety of communication and I/O options
– PT100 thermometer integration
– RS232
– USB
– 4 – 20mA and more
LOW COST:
– No installation costs
– No drilling into pipes
– No downtime to the pipe network
– One person operation/set up
Permaflow® reduces installation costs, increase safety helping you deliver our vision of the Safesite™ on land and the Safeship™ at sea. It allows user to consistently perform a wide variety of maintenance and inspection procedures, for the benefit of customers and personnel.
What are ultrasonic flow meters?
An ultrasonic flow meter is a non-invasive flow-measuring device that uses sound waves to determine the flow rate of liquids. Offering high accuracy, low maintenance requirements, and versatility, these flow meters can be used for various applications, including fuel consumption monitoring, industrial processes, water treatment, and energy management.
There are two main types of ultrasonic flow meters:
- Transit time flow meters
- Doppler flow meters
We offer ultrasonic transit time flowmeters that are high in accuracy and versatility using clamp-on sensors. Our transit-time meters far surpass mechanical flow meters, with an accurate flow sensor that can calculate volume flow easily.
Each ultrasonic flow meter from us is designed to cater to a wide range of pipe sizes. They are virtually maintenance free and once they’re installed, these ultrasonic flowmeters get straight to work.
How do ultrasonic transit-time flow meters work?
Ultrasonic flow meters work by sending sound waves through a liquid.
Transit-time ultrasonic flow meters measure the difference in transit time between sound waves travelling with and against the flow. In this type of meter, two transducers are installed on opposite sides of the pipe, one sends a sound wave through the fluid in the direction of the flow, and the other receives it. The transit time is then calculated by comparing the time the wave travels from the first transducer to the second transducer with and against the flow.
Two ultrasonic sensors are clamped to the outside of the pipe at a pre-determined distance apart. The ultrasonic signal travels between the transmitters through the pipe wall and the fluid within the pipe. If the fluid is flowing, then it takes slightly longer for the ultrasound to travel against the flow (upstream time T_up) than with the flow (downstream time T_down).
In a typical installation, the individual times measured upstream and downstream are just a few hundred microseconds, the difference between them is typically measured in tens of nanoseconds. This very small time difference (T_up – T_down) is measured by the flowmeter and is directly proportional to the fluid’s flow velocity (V).
To learn more about keeping your vessel compliant with IMO and maritime regulations, please contact us.
