Question
In oil exploitation, specialized methods are used to maximize recovery of crude oil when the natural pressure differential is already quite low. One of these
In oil exploitation, specialized methods are used to maximize recovery of crude oil when the natural pressure differential is already quite low. One of these methods is the so-called EOR (Enhanced Oil Recovery), which uses mixtures of gases and water vapor, to pump and get a larger amount of oil from the ground. The EOR requires steam superheated to 10 bar and 500C for injection into the source rocks. This desired vapor is obtained from the mixture of saturated steam at 70C and superheated steam at 5 bar and 700C. Assuming that you want to obtain 100m3 /s of the desired superheated steam (10 bar and 500C), Determine the inlet mass flow rate of saturated steam (70C) and superheated steam (5 bar and 700C) that must enter the system. Assume that the rate of heat that must be entering the mixing system to obtain the desired vapor comes from a previous process where 200kg/s of saturated steam at 90C (specific enthalpy of 2659 kJ/kg) is cooled to 50C (specific enthalpy of 2592.2 kJ/kg). In the cooling and mixing processes before described, neglect kinetic energy, potential energy, and arrow work
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