| Summary: | In the process of Enhanced Oil Recovery (EOR) steam injection required 100% quality steam at 70 bar pressure and is injected into the injection wells as oil recovery process. For the supply of steam is then needed a steam plant as a producer of steam. One components of process equipment that is used is steam separator. Steam separator is used as a separator of water-vapor mixture do the heating water in Once Through Steam Generators (OTSG).
The primary objective of this study is to get a model of steam and water separation system and obtain the response characteristics of the steam separator system. In this research, modeling the system is done by arranging the mass balance of water, steam, and vapor quality. Normalized equation is structured to facilitate the analysis of the response characteristics of the system. The response characteristics of the system are observed water level changes, changes in vapor pressure and vapor quality changes. In modeling the system, there are three types of variables: the manipulated variable, controlled variables, and disturbance variables. Test of system response is done by changing the value of the variation of the manipulated variable is the rate of mass and also mixed in. Disturbance variable is the quality of the input steam. Testing was conducted on the test signal step signal, sine, and ramp.
The result showed that the response of change in water level, vapor pressure and steam quality can be approximated by the dynamic model of order 1. Change of water level has a time constant of 3.65 seconds, the time constant for the vapor pressure change is worth 0.0845 seconds, while for the steam quality changes of time constants obtained 8.065 seconds.
Keywords: steam flooding EOR , modeling, normalized, respon test, time constant
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