In: Physics
When the transportation of natural gas in a pipeline
is not feasible for economic
reasons, it is first liquefied using nonconventional refrigeration
techniques and
then transported in super-insulated tanks. In a natural gas
liquefaction plant,
the liquefied natural gas (LNG) enters a cryogenic turbine at 3 MPa
and -160
°C at a rate of 20 kg/s and leaves at 0.3 MPa. If 115 kW power is
produced by
the turbine, determine the efficiency of the turbine. Take the
density of LNG to
be 423.8 kg/m3