For an oil reservoir , calculate the following for a vertical oil well considering steady state Porosity, Phi=0.25 Permeability, k=20 md thickness, h=40 ft Reservoir pressure, Pe=5,000 psi Bubble point pressure, Pb=100 psi Area, A=500 acres Skin, S=5 Total Compressibility, Ct=0.0000125 psi-1 Oil Viscosity, mo=1.5 cp, wellbore radis, rw=0.33 ft Time=30 days

Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk

How much power could a wind turbine produce if it had the following specifications? cp = 0.45 -d=1.2kg/m3 d=50m v 5m/s

An electric kettle is made out of stainless steel, weighs two pounds (when empty) and is equipped with a heating element that consumes 2 kw of electricity. assuming that the water and the kettle are at the same uniform temperature at any moment of time, calculate the shortest possible time to bring 2 quarts of water from room temperature to the onset of boiling