1、,China, Spring 2009, by Henrik Rolsted,Cylinder Condition, New lube guidelines,SL09-XXX/HRRMarch 2009 Cylinder Lubrication Updated ACC Guidelines All MC/MC-C and ME/ME-B/ME-C type engines High topland engines, with Alpha ACC System Action Code: WHEN CONVENIENT,X-head engines need forced lubrication!
2、MAN B&W 2-stroke engines has the advanced electronically controlled “Alpha Lube” Oil System:, enabling “ACC-mode”, i.e. Adaptive Cylinder oil Control, meaning adaptive to the sulphur % in the fuel and to the fuel oil amount being burnt (engine load).,Cylinder Condition, New lube guidelines,China, Sp
3、ring 2009, by Henrik Rolsted,Cylinder Condition, New lube guidelines,Cylinder Condition, New lube guidelines,China, Spring 2009, by Henrik Rolsted,China, Spring 2009, by Henrik Rolsted,Cylinder Condition, New lube guidelines,China, Spring 2009, by Henrik Rolsted,Cylinder Condition, New lube guidelin
4、es,0.60 g/kWh,0.83 g/kWh,0.8,0.8,0.8,0.8,0.8,0.8,0.8,0.8,0.8,0.8,0.8,0.8,0.26 g/kWhS%,Seminar Chalmers, November 2008, , Presented by Henrik Rolsted,Cylinder Condition, New lube guidelines,China, Spring 2009, by Henrik Rolsted,HFO 240 $ / ton,HFO 475 $ / ton,Cylinder Condition MAN B&W 2-stroke engin
5、es,Yearly Operational expenses 12K98ME,China, Spring 2009, by Henrik Rolsted,Testing New lube guidelines: ACC factor at 0.23 g/kWh on Safmarine Antwerp - 10K98MC-C, CMA CGM Fort St. Louis 8S70MC-C, Astro Cygnus 6S90MC-C and Cosco Guangzhou 12K98MC7 and other 4 sister vessels.ACC factor at 0.20 g/kWh
6、 on Safmarine Antwerp - 10K98MC-C, Astro Cygnus 6S90MC-C, Cosco Ningbo + other 4 sister vessels 12K98MC7, CMA CGM Berlioz Fixed New lube guidelines 0.60 g/kWh on Maersk Kolkata, 10K98MC-C, CMA CGM Debussy, 12K98MC-C and CMA CGM Debussy 10K98MC-C.BN40 cylinder oil instead of the normal BN70 on CMA CG
7、M Bizet together with the standard ACC dosages. The purpose is to enhance the corrosion level at all sulphur levels. Minimum figure 0.60 g/kW lowered to 0.55 g/kWh on 4 cylinders on a 8S60MC-C M/S Undine, running constantly on low sulphur fuel,Cylinder Condition, New lube guidelines,China, Spring 20
8、09, by Henrik Rolsted,0.23 g/kWh x S% (green curve),Cylinder Condition, New lube guidelines,China, Spring 2009, by Henrik Rolsted,Cylinder Condition, New lube guidelines,China, Spring 2009, by Henrik Rolsted,Cylinder Condition, New lube guidelines,China, Spring 2009, by Henrik Rolsted,Testing New lu
9、be guidelines: ACC factor at 0.23 g/kWh on Safmarine Antwerp - 10K98MC-C, CMA CGM Fort St. Louis 8S70MC-C, Astro Cygnus 6S90MC-C and Cosco Guangzhou 12K98MC7 and other 4 sister vessels.ACC factor at 0.20 g/kWh on Safmarine Antwerp - 10K98MC-C, Astro Cygnus 6S90MC-C, Cosco Ningbo, Cosco Guangzhou + o
10、ther 4 sister vessels 12K98MC7, CMA CGM Berlioz Fixed New lube guidelines 0.60 g/kWh on Maersk Kolkata, 10K98MC-C, CMA CGM Debussy, 12K98MC-C and CMA CGM Debussy 10K98MC-C.BN40 cylinder oil instead of the normal BN70 on CMA CGM Bizet together with the standard ACC dosages. The purpose is to enhance
11、the corrosion level at all sulphur levels. Minimum figure 0.60 g/kW lowered to 0.55 g/kWh on 4 cylinders on a 8S60MC-C M/S Undine, running constantly on low sulphur fuel,Cylinder Condition, New lube guidelines,China, Spring 2009, by Henrik Rolsted,0.20 g/kWh x S% (green curve),Cylinder Condition, Ne
12、w lube guidelines,China, Spring 2009, by Henrik Rolsted,ACC factor 0.23 g/kWh x S %,ACC factor 0.20 g/kWh x S %,Cylinder Condition, New lube guidelines,China, Spring 2009, by Henrik Rolsted,Cylinder Condition, New lube guidelines,Cylinder Condition, New lube guidelines,China, Spring 2009, by Henrik
13、Rolsted,China, Spring 2009, by Henrik Rolsted,Cylinder Condition, New lube guidelines,Consequently:,China, Spring 2009, by Henrik Rolsted,Cylinder Condition, New lube guidelines,China, Spring 2009, by Henrik Rolsted,Cylinder Condition, New lube guidelines,Tier II,Cylinder Condition, New lube guideli
14、nes,China, Spring 2009, by Henrik Rolsted,China, Spring 2009, by Henrik Rolsted,Cylinder Condition, New lube guidelines,China, Spring 2009, by Henrik Rolsted,Cylinder Condition, New lube guidelines,China, Spring 2009, by Henrik Rolsted,Cylinder Condition, New lube guidelines,China, Spring 2009, by H
15、enrik Rolsted,Cylinder Condition, New lube guidelines,China, Spring 2009, by Henrik Rolsted,Testing New lube guidelines: ACC factor at 0.23 g/kWh on Safmarine Antwerp - 10K98MC-C, CMA CGM Fort St. Louis 8S70MC-C, Astro Cygnus 6S90MC-C and Cosco Guangzhou 12K98MC7 and other 4 sister vessels.ACC facto
16、r at 0.20 g/kWh on Safmarine Antwerp - 10K98MC-C, Astro Cygnus 6S90MC-C, Cosco Ningbo + other 4 sister vessels 12K98MC7, CMA CGM Berlioz Fixed New lube guidelines 0.60 g/kWh on Maersk Kolkata, 10K98MC-C, CMA CGM Debussy, 12K98MC-C and CMA CGM Debussy 10K98MC-C.BN40 cylinder oil instead of the normal
17、 BN70 on CMA CGM Bizet together with the standard ACC dosages. The purpose is to enhance the corrosion level at all sulphur levels. Minimum figure 0.60 g/kW lowered to 0.55 g/kWh on 4 cylinders on a 8S60MC-C M/S Undine, running constantly on low sulphur fuel,Cylinder Condition, New lube guidelines,T
18、he need for Cylinder oil: Cleaning by the detergency: Test has proved that the cleaning is done satisfactory at least down to 0.60 g/kWh using todays high quality cylinder oils. Lubrication. Test have proved that the optimum oil film is obtained at 0.60 g/kWh, and that higher dosages do not lead to
19、higher oil film thickness. Neutralising the remaining sulphuric acid condensed on the liner wall by means of the alkalinity in the oil (CaCO3). Today, at higher sulphur then 2.3% more cylinder oil then 0.60 g/kWh is applied according to the ACC factor 0.26 g/kWh x S%,Cylinder Condition, New lube gui
20、delines,China, Spring 2009, by Henrik Rolsted,The need for Cylinder oil: Cleaning by the detergency: Test has proved that the cleaning is done satisfactory at least down to 0.60 g/kWh using todays high quality cylinder oils. Lubrication. Test have proved that the optimum oil film is obtained at 0.60
21、 g/kWh, and that higher dosages do not lead to higher oil film thickness. Neutralising the remaining sulphuric acid condensed on the liner wall by means of the alkalinity in the oil (CaCO3). Today, at higher sulphur then 2.3% more cylinder oil then 0.60 g/kWh is applied according to the ACC factor 0
22、.26 g/kWh x S%,Cylinder Condition, New lube guidelines,China, Spring 2009, by Henrik Rolsted,Promotion at MAN, January 2009, by Henrik Rolsted,OFTM by BP/MAN (Oil Film Thickness Measurements),Cylinder Condition, New lube guidelines,Promotion at MAN, January 2009, by Henrik Rolsted,Cylinder 12, Senso
23、r No. 11, Compression stroke:,OFTM by BP/MAN (Oil Film Thickness Measurements),Cylinder Condition, New lube guidelines,Promotion at MAN, January 2009, by Henrik Rolsted,OFTM by BP/MAN (Oil Film Thickness Measurements),Parameter variations Alpha versus mechanical lubricators Cyl. oil viscosity variat
24、ions between SAE 40 and 60 Cylinder oil feed rate variations from 0.40 to 1.5 g/kWh.,Cylinder Condition, New lube guidelines,Feed rate test, 85% load, Alpha,0.0,0.5,1.0,1.5,2.0,2.5,3.0,3.5,4.0,4.5,5.0,0.41,0.48,0.54,0.60,0.68,0.75,0.82,0.88,Feed rate g/kWh at MCR,OFT um,Compression Average all senso
25、rs (1 to 7),Compression Average sensor 1-3-5-7,Compression Average sensor 2-4-6,Expansion Average all sensors (1 to 7),Expansion Average sensor 1-3-5-7,Expansion Average sensor 2-4-6,AFT,MAN.,Cylinder Condition, New lube guidelines,China, Spring 2009, by Henrik Rolsted,Feed rate test, 85% load, Alph
26、a,0.0,0.5,1.0,1.5,2.0,2.5,3.0,3.5,4.0,4.5,5.0,0.41,0.48,0.55,0.60,0.68,0.75,0.82,0.88,Feed rate g/kWh at MCR,OFT um,Compression Average all sensors (1 to 7),Compression Average sensor 1-3-5-7,Compression Average sensor 2-4-6,Expansion Average all sensors (1 to 7),Expansion Average sensor 1-3-5-7,Exp
27、ansion Average sensor 2-4-6,AFT,MAN.,Questions today: At 0.60 g/kWh the oil film was measured to 1 my, which was regarded as lower limit. At 0.55 g/kWh the oil film was measured to 0.6 0.8 my. How would this influence the cylinder condition? What are the oil film thickness at a dosages at 0.55 g/kWh
28、 and lower on todays more modern, high top land engines? A new measuring programme to highlight these questions are planed,Cylinder Condition, New lube guidelines,China, Spring 2009, by Henrik Rolsted,Status,Low Sulphur fuel, Low BN Cylinder Oil,M/S Undine, 8S60NC, HSD, testing FAMMs low BN cylinder
29、 oil on half engine together with low sulphur fuel,China, Spring 2009, by Henrik Rolsted,Low Sulphur fuel, Low BN Cylinder Oil,Undine, 8S60MC, two tank system, two Alpha pump system.,TEST CYLINDER/S,A,B,C,D,Test cylinder oil,Approved cylinder oil,Control voltage for start of Alpha Oil Supply Unit fo
30、r the test cylinders,Low Sulphur fuel, Low BN Cylinder Oil,China, Spring 2009, by Henrik Rolsted,China, Spring 2009, by Henrik Rolsted,Cylinder Condition, New lube guidelines,0.55 g/kWh,China, Spring 2009, by Henrik Rolsted,Cylinder Condition, New lube guidelines,ACC lubrication, 0.26 g/kWh x S% and low sulphur fuel = 0.60 g/kWh abs constant. Now reduced to 0.55 g/kWh abs. on 4 cylinders!,End if this presentation. Next: Low sulphur fuel operation.,China, Spring 2009, by Henrik Rolsted,Cylinder Condition, New lube guidelines,
