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The economically destructive price spike of 2007-2008 occurred when spare production capacity fell below 1 mbpd, causing a run-up in oil price from $50 to $145 per barrel. An issue for world oil spare capacity is the internal consumption of OPEC producers. OPEC production has ranged between 30 and 33 mbpd since 2004. Internal use is currently about 25% of total OPEC production, but it is growing by 2% per year. The internal consumption growth is largely for nonelastic end uses such as electricity generation, water treatment, and new buildings. If the current world spare capacity is 2 mbpd and the OPEC total production does not increase beyond 33 mbpd, how many years will it take for the spare capacity to fall below 1 mbpd again?
Air is compressed from 23 C to 100 kPa to 500 kPa in a gas turbine. The air is heated to 520 C in the regenerator and then to 1200 C before entering the turbine. The isentropic efficiency is 100% for both the compressor and turbine. Please draw and l..
Determine the Young's modulus of elasticity for the tensile test data given. Assume that the sample has a circular cross section and the diameter is 2 cm. Use some rationale or clear criteria to establish the number of points selected. (Looks good..
question 1 a force of 750 n acts on point a in the x direction where the cables ab ac and ad are joined as shown in
a new cylindrical tank is being designed for seaworld where the 3m high plexiglass wall will be supported using i-beams
Consider a model of a building whose base moves as a result of an earthquake. The building can be modeled as a single-degree-of-freedom spring-mass system where the building mass is lumped on top of two beams used to model the walls of the building.
The angular velocity of a flywheel obeys the equation w2 (t) = A + Bt2, where t is in seconds and 'A', 'B' are constants having numerical values 2.75 and 1.50 respectively. Through what angle does fly wheel turn during the first 2.00 s?
The acceleration of a particle is defined by a=Kt2. Knowing that v=-4 m/s at t=0, and v=20 m/s at t=4, determine the constant K. Determine the equations of velocity and position, knowing that x=4m when t=6s.
determine the headwater depth of a 1000 mm high by 1500mm wide concrete box culvert operating under outlet control
what would be the final temperature of an average natural gas at 320of when the pressure is dropped from 3000 to 1800
5 kg of water at 1 atm in a cylinder was heated until it is half boiled.1 what is the atm inside the cylinder?2 the
the rotor shaft of a helicopter drivesd the rotor blades that provide the lifting force and is subjected to a
determine the stresses and the rotation of the body at x= 0.050m and y=0.020m is the displacement field compatible?
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