KRAL Volumeter - Fuel Consumption Measurement for Diesel Engines.

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1 KRAL Volumeter - Fuel Consumption Measurement for Diesel Engines.

2 KraL Volumeter Fuel Consumption Measurement for Diesel Engines Reduce fuel costs, prevent engine damage and collect data for R&D, service and maintenance. Exact measurement of fuel usage. About 80 % of diesel engine operating costs are fuel costs. Diesel engines can power such equipment as: power generators ships locomotives All of these demanding applications require accurate flow measurement. Efficient operation is important, especially with systems using multiple engines. Therefore fuel usage is a decision criteria in the purchase of a diesel engine and is carefully monitored during: engine development commissioning the warranty period p [bar] Reliable flow measurement with pulsating flow. The pistons of the fuel injection pump cause fluid pulsation in the fuel supply system. These pulsations may be responsible for: bar surge impact on the system components, high-frequency flow fluctuations, in rare cases, a brief reversal of the flow direction. 150 bar t [ms] Typical operating parameters for the KRAL fuel consumption measurement system. Fuels: Diesel fuel (LFO), Marine fuel oil (MFO), Heavy fuel oil (HFO). Temperature: up to 150 C. Filtration: up to 0,3 mm. Pulsation pressure: up to 20 bar, consult factory. Vibrations: No influences on measurement. For further information, please request product brochures for the individual components of our diesel consumption measurement system. Insensitive to system Dual fuel engines and vibrations. changing conditions. Slow- and medium-speed Dual fuel engines combust both light and heavy diesel engines can cause severe vibrations, which fuel oils. also induce oscillations at Fuel properties may vary the flowmeter. between local markets. Vibration and fluid pulsation Additionally, temperatures must not affect the accurate and reliable perfor- temperature. may affect your fuel oil mance of the flowmeter. All of these influence the oil viscosity. Therefore, the flowmeter must be able to measure accurately in wide-ranging conditions. 2

3 Typical system example incorporating the KRAL Volumeter with BEM 500. The KRAL Volumeter is designed to handle the rough operating conditions near the injection pump. As a positive-displacement meter, the KRAL Volumeter follows the changing velocities of pulsating flow. Supply line Injection Pump KRAL BEM 500 Diesel engine KRAL Volumeter Return line The complete system from one source. KRAL offers a complete system for consumption measurement with KRAL Volumeter and the electronic BEM 500, 700 and 900. KRAL's decision to use spindles is due to their resistance to mechanical vibrations, without sacrificing accuracy. With two sensors, bidirectional measurement is possible. Pressure pulses can cause brief reversal of the flow direction. The BEM 500 detect reverse flow and correct the total. Using temperature sensors, the BEM 500 displays fuel consumption in mass units. 3

4 Sound reasons to choose KRAL. Precise and High accuracy over a reproducible flow wide viscosity and measurement. flow range. The accuracy of the KRAL Being a positive-displacement meter, the KRAL Volumeter is unmatched. Our meters are accurate Volumeter is naturally insen - to within ±0,1% of rate sitive to wide changes in: over a wide range of flow viscosity and viscosity. The reproducibility is better than flow rate temperature ±0,01% (consult factory). The Measuring range With excellent service life diagram shows the extent and long-term stability, in which: this clearly shows that high accuracy is sturdiness and precision achieved, are not mutually exclusive. continuous operation Nine European standards is possible, laboratories used a KRAL measuring independent Volumeter for a calibration of viscosity is possible. intercomparison. With results beyond expectations, the report suggests using our device as the default transfer standard between kerosene laboratories. v [mm/s] f [Hz] Measurement under difficult operating conditions. The photo above shows a real-world installation. Obviously, KRAL Volumeter are extremely sturdy devices. p [bar] KRAL is also experienced in flow measurement under other difficult oper ating conditions. Example: hydraulics of tunnel boring machines. Liquid: Hydraulic oil. Flow rate: 0,3-45 l/min bi-directional. Pressure: Pulsating up to 250 bar. Temperature: C. Viscosity: mm²/s The flow to the hydraulic cylinder is measured in order to determine the exact position of the boring bit. Boring 30 Return stroke t [ms] Viscosity [mm²/s] ± 0,3 % ± 1,0 % short term operation ±0,1% continuous operation ±0,1% Measuring range. The KRAL Volumeter is characterized by reliable measurement in both flow directions despite extreme vibrations and surge impact during boring Flowrate [% of Q nom ] The measuring range diagram is internationally copyright protected. Percentage quotation concern the measuring accuracy. 4

5 KRAL Volumeter Components of a fuel consumption measurement system. Application. OME OMC* BEM 500 BEM 700 BEM 900** Classification Consumption measurement for single or multiple engines Economical Volumeter for Electronic Modular Modular Volumeter Diesel engines unit controller Industrial PC Return flow recognition Volume measurement Temperature compensation Bus connection Hybrid-Bearing Filter Multi-Motor connection * Standard for consumption measurement. ** BEM 900 not for single line consumption measurement. 5

6 KRAL AG, Bildgasse 40, Industrie Nord, 6890 Lustenau, Austria, Tel.: +43 / 55 77/ Fax:+43 / 55 77/ , kral@kral.at Subject to change 09/06. All rights reserved.