Natural gas at the ambient temperature of 35 ?C and 4 bar at a rate of 8500 kg/h is to be liquefied.

Natural gas at the ambient temperature of 35 ?C and 4 bar at a rate of 8500 kg/h is to be liquefied in a natural gas liquefaction plant. Natural gas leaves the plant at 4 bar and ?150 ?C as a liquid. Using methane properties for natural gas determine (a) the rate of heat removed from the natural gas, and (b) the minimum power input, and (c) the reversible COP. (d) If the actual power input during this liquefaction process is 13,500 kW, determine the exergy efficiency and the actual COP of this plant. Various properties of methane before and after liquefaction process are given as follows: h1 = 18.69 kJ/kg h2 = ?870.02 kJ/kg s1 = ?0.6466 kJ/kg · K s2 = ?6.3343 kJ/kg · K

 

Looking for a Similar Assignment? Let us take care of your classwork while you enjoy your free time! All papers are written from scratch and are 100% Original. Try us today! Use Code FREE15