【作者】

Sudipa Ghosh，Amitava Talukder

【摘要】

论文已在中国上海举行的第27届CIMAC大会上发表。论文的版权归CIMAC所有。Marine Engines are fitted with several filters in the fuel line to keep out substances that may enter the engine and cause damages. In the last few ears, partial to complete blockages of filters have been experienced in several marine engines. The consequence has been unscheduled stoppages of engines, blackout due to complete power loss in some cases and drifting in high seas risking the safety and security of the ship. There are no standards and pro cedures to assess the filterability of bunker fuels as they pass through the fuel systems of the engines Some work was carried out by shell in this area. How ever this did not gain industry acceptance since it called for a very large quantity of bunker fuel sample3 liters). There is an existing astm method for determining Filter Blocking Tendency. However this covers only distillate fuels, biodiesel fuel and blends of these fuels and not bunker residual heavy fuels. The current method adopted to identify potential filter blocking in fuels is to carry out a GCMS/FT-IR analysis and iden tify and quantify substances/contaminants that cause this problem. This method takes much longer time and is much more expensive. This paper describes a Fil-ter Blocking Tendency test which will need only 300mL of the fuel sample (which is available in the cur- rent bunker fuel sampling procedures). In this setup300 mL of fuel is pumped at a constant rate and pres sure and temperature developed are recorded simul-taneously. Using proprietary software, the changes in pressure and temperature of the fuel oil are recorded at set intervals as they pass through the filter medium A pressure v/s volume curve is plotted and the Filte Blocking Tendency Number(FBTN) is generated after each test. By correlating the lab test result with the actual filter blocking problems experienced by ships, FBTN number has been fine-tuned to provide a clear indication if the fuel is likely to block the filters on the ships main and auxiliary engines. Various parame ters have been adjusted to reflect the conditions on the ship so that a realistic FbtN can be generated

【会议名称】

第27届CIMAC会议

【会议地点】

上海

【下载次数】

1

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