A ship 150 m in length,24m breadth,displaces 25000t when floating at a draft of 9m in sea water of density 1025 kg/m3. The ship's propeller has a diameter of 5.8m a pitch ratio of 0.9 and blade area ratio of 0.45. with the propeller operating at 2 rev/sec, the following results were recorded.
Apparent slip = 0.06
Thrust power= 3800 kw
Propeller efficiency= 64%
The Taylor's wake fraction wt = 0.5Cb - 0.05
Calculate each of the following
a) The ship's speed
b) The real slip ratio
c) The thrust per unit area of blade surface
d) The torque delivered to the propeller
Apparent slip = 0.06
Thrust power= 3800 kw
Propeller efficiency= 64%
The Taylor's wake fraction wt = 0.5Cb - 0.05
Calculate each of the following
a) The ship's speed
b) The real slip ratio
c) The thrust per unit area of blade surface
d) The torque delivered to the propeller
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ReplyDelete10.4[1-0.06]=9.776 and not 9.813 in (a) section of answer
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