WORKSHOP MANUAL W26 Wärtsilä NSD Nederland B.V. Engine type W26
Chapter 1.0
Subject Main data
Issue date June '00
HFO, MDO/LFO - Main data Engine speed [rpm] 900 1000
Fuel type HFO + DMC MDO / LFO HFO + DMC MDO / LFO
Cylinder output (MCR) [kW] 295 310 310 325
Mean effective pressure [bar] 23.1 24.3 21.9 23.0
The Mean Effective Pressure of the W26 engine can be calculated as follows: pe
= P / (n * 0.01416)
pe P n
= = =
Mean effective pressure [bar] Output per cylinder [kW] Engine speed [rpm]
General formula 4 Stroke diesel engine
Pe =
pme.
π D .s.n.z 2
4 2 × 60000
kW
Pe = effective power [kW] D = bore [m] pme = mean effective pressure [N/m2] s = piston stroke [m] z = number of cylinders n = number of revolutions [1/min]
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