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Kobold helps fishermen measure diesel engine fuel consumption

KOBOLD Instrumentation was asked by commercial fishermen for an off-shore, onboard solution to monitor real-time fuel consumption on their small ships and fishing vessels. 

KOBOLD’s Oval Wheel Flow Meters Model DOM were specified for fuel consumption measurement in diesel engines using the dual flow inputs and the 'A-B' setting. A pair of DOM flowmeters is used with a single electronic model ZOD-Z3 to give a net reading of fuel consumption.

For this specific application, KOBOLD installed a pair of stainless steel flowmeters (DOM-S15… for flows upto 550 l/h per flowmeter) and one ZOD-Z3 per engine. As choking of the flowmeter or strainer in main line may result in higher differential pressure and result in diminishing fuel to the engine, an alternative is to use a pressure relief valve in the bypass line. Higher inlet pressure opens the pressure relief valve and ensures a constant supply to the diesel engine. In selective cases, the choice of "pulsating flow” option may be recommended.

The benefits of this application is that once monitoring commences, the vessel’s speed can be adapted to optimize diesel usage.  Kobold claims that with this installation to monitor the fuel consumption in their vessels’ diesel engines, small commercial fishermen/ship owners can expect a return on their investment within a month.



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