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

What precautions should you take to prevent injuries when dealing with heavy loads?

Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.