Natural gas with a specific gravity of 0.7 and flowing with a flowrate of 2 MMSCFD in a split pass coil line heater. Line Pressure and temperature (before the choke and the line heater) = 3000 psia, 100F. Well shut in pressure = 5000 psia Pressure after choke = 1500 psia.
a) Gas was heated hot enough so that it drops to hydrate temperature after the choke. What was the temperature it was heated to, before it enters the choke?

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?