Lube Oil Care Marine Diesel Engines (4-stroke) | Supply Vessel
Customer case
Marine Diesel Engines
Vessel: Supply Vessel
Engines: BERGEN, 2,500 kW/750 rpm (2 pieces), 4-stroke diesel engines
Lube Oil: SHELL GADINIA AL 40
Test — Centrifuge vs CJC® Lube Oil Filter
Test period: > 10,000 running hours
Test start: at 144,992 running hours
Test end: at 155,123 running hours
Conventional lubrication oil treatment:
One centrifuge (lube oil separator) for each engine.
Pump flow: 550−810 L per hour
Newly installed CJC® Lube Oil Filter:
During the test period, a CJC® Lube Oil Filter 27/108 for continuous fine filtration and drying (24/7/365) was installed at one of the engines (ME 2). The automatic temperature controlled flow ensures optimum operation and the highest filtration efficiency.
Pump flow: 1,150 L per hour (0.3 L/kW) nominal
Savings & Benefits
approx. 97.5% lower energy consumption
≅ 229,774 kW/year and centrifuge
- ME 1 with centrifuge, energy consumption ≅ 235,468 kW (26,88 kW for operation + preheater)
- ME 2 with CJC® Lube Oil Filter, energy consumption ≅ 5,694 kW (0.65 kW for operation)
approx. 97.8% lower CO2-emissions
≅ 159,649 kg per year and centrifuge saved
Combustion of fuel and thermal disposal of waste oil/sludge cause approx. 2.6 kg CO2 per litre.
Lower energy consumption:
- ME 1 with centrifuge ≅ 143,246 kg CO2
- ME 2 with CJC® Lube Oil Filter ≅ 3,463 kg CO2*)
*) Based on consumption of approx. 187 g fuel per kWh.
Lower amount of sludge to be disposed of:
- ME 1 with centrifuge ≅ 19,929 kg CO2
- ME 2 with CJC® Lube Oil Filter ≅ 62.4 kg CO2
approx. 99.7 % less sludge
≅ 7,641 Litres per year and centrifuge
- ME 1 with centrifuge, discharge of sludge ≅ 7,650 Litres
- ME 2 with CJC® Lube Oil Filter, filter insert replacement ≅ 24 Litres
approx. 60% lower lube oil consumption
≅ 8,940 Litres per year and centrifuge
- ME 1 with centrifuge, discharge and diesel engine ≅ 14,900 Litres
- ME 2 with CJC® Lube Oil Filter, filter insert replacement and diesel engine ≅ 5.960 Litres
approx. 60 % less time for maintenance
≅ 8 hours per year and centrifuge
- ME 1 with centrifuge, Ø time for maintenance ≈ 20 hours
- ME 2 with CJC® Lube Oil Filter, Ø time for maintenance ≈ 12 hours
approx. 86.25 % lower operating cost (OPEX)
≅ 30,199 EUR per year and centrifuge
| Specific lube oil consumption (SLOC) at maximal continuous rate (MCR) |
||||
|---|---|---|---|---|
| Engine ME1 with lube oil separator |
Engine ME2 with CJC ® Lube Oil Filter |
|||
| SLOCMCR* [g/kWh] | 0,71 | 0,28 | ||
*) SLOC = Specific Lube Oil Consumption
MCR = Maximum Continuous Rating
| Savings | ||
|---|---|---|
| OPEX per year (359 working days, approx. 8,616 h/year) | Lube oil separator | CJC ® Lube Oil Filter |
| Oil costs [1,97 EUR/l] | 15,090 EUR | 48 EUR |
| Energy costs [0,08 EUR/kWh] | 18,535 EUR | 465 EUR |
Disposal costs [0,12 EUR/l]
Sludge, filter inserts |
950 EUR | 120 EUR |
| Maintenance costs, expandable materials | 440 EUR | 4,183 EUR |
| Total costs | 35,015 EUR | 4,816 EUR |
| Total savings per year | 30,199 EUR | |
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