Perform a cost-effectiveness analysis on a typical large tanker used for transporting petroleum. Determine, as a percentage of the petroleum cargo, the amount of petroleum that is consumed in traveling a distance of 2000 miles. Use data from Example 9.4, and the following: Assume the petroleum cargo constitutes 75% of the total weight, the propeller efficiency is 70%, the wave drag and power to run auxiliary equipment constitute losses equivalent to an additional 20%, the engines have a thermal efficiency of 40%, and the petroleum energy is 20 ; 000Btu/lbm. Also compare the performance of this tanker to that of the Alaskan Pipeline, which requires about 120 Btu of energy for each ton-mile of petroleum delivery.
Perform a cost-effectiveness analysis on a typical large tanker used for transporting petroleum. Determine, as a percentage of the petroleum cargo, the amount of petroleum that is consumed in traveling a distance of 2000 miles. Use data from Example 9.4, and the following: Assume the petroleum cargo constitutes 75% of the total weight, the propeller efficiency is 70%, the wave drag and power to run auxiliary equipment constitute losses equivalent to an additional 20%, the engines have a thermal efficiency of 40%, and the petroleum energy is 20 ; 000Btu/lbm. Also compare the performance of this tanker to that of the Alaskan Pipeline, which requires about 120 Btu of energy for each ton-mile of petroleum delivery.
Perform a cost-effectiveness analysis on a typical large tanker used for transporting petroleum. Determine, as a percentage of the petroleum cargo, the amount of petroleum that is consumed in traveling a distance of 2000 miles. Use data from Example 9.4, and the following: Assume the petroleum cargo constitutes 75% of the total weight, the propeller efficiency is 70%, the wave drag and power to run auxiliary equipment constitute losses equivalent to an additional 20%, the engines have a thermal efficiency of 40%, and the petroleum energy is 20;000Btu/lbm. Also compare the performance of this tanker to that of the Alaskan Pipeline, which requires about 120 Btu of energy for each ton-mile of petroleum delivery.
An aircraft has a total mass of (1.48x10^2) kg and a wing area of (2.0000x10^1) m². It operated
with an aerofoil section having C = 1.0 and CD3D0.1. Assuming that the total drag of the wing
represents the whole drag of the aircraft, find the power input required for to overcome gravity and
take off. Assume density of air to be 1.2 kg/m3.
Answer should be in Watts with three significant figures.
Note: Your answer is assumed to be reduced to the highest power possible.
Your Answer:
x10
Answer
The Antonov An-225 is the heaviest aircraft ever built, with a maximum takeoff weight of 640 metric tonnes. It also has the largest wingspan of any aircraft in operational service.
Sea level standard day (sls) conditions for calculations are 15°C; 101.3kPa
Rotate speed (Vr) at takeoff (sls):
Vr = 154 kts = 1.2×Vmin
(1 kt = 0.514 m/s)
Cruise Engine Thrust :
a) Calculate the lift coefficient for a standard day takeoff
b) Calculate the drag coefficient at cruis
Fcruise = 0.85 Fmax
Engine maximum thrust:
Factual,max = Fsls,max×δ θ½
δ = Pactual/Pref; and
θ = Tref/Tactual
An aircraft has a total mass of (1.26x10^2) kg and a wing area of (2.3000x10^1) m². It operated
with an aerofoil section having CL = 1.0 and CD=0.1. Assuming that the total drag of the wing
represents the whole drag of the aircraft, find the power input required for to overcome gravity and
take off. Assume density of air to be 1.2 kg/m3.
Answer should be in Watts with three significant figures.
Note: Your answer is assumed to be reduced to the highest power possible.
Your Answer:
x10
Activate Windo
Go to Settings to acti
Answer
El
SW
2020
(?)
9°C
Chapter 9 Solutions
Fox And Mcdonald's Introduction To Fluid Mechanics
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.