Question: Please help me solve the problem accurately! I'll r ate you based on accuracy. Exercise 2 (35 points) A process instrumentation diagram for a flash

Please help me solve the problem accurately! I'll r ate you based on accuracy.

Exercise 2 (35 points) A process instrumentation diagram for a flash drum is shown in the following figure. Steam is condensed in a steam coil to vaporize a portion of the liquid feed, and the liquid product is removed by a pump. There are five control valves for the steam flow, steam chest (which allows the steam chest to be rapidly evacuated in emergency situations), vapor product, liquid product, and feed flow. Determine whether the five valves should be air-to-open (AO) or air- to-close (AC) for safe operation and provide explanation, for each of the following two cases: (a) The safest conditions are achieved by the lowest temperature and pressure in the flash vessel. (b) Vapor flow to downstream equipment can cause a hazardous situation. FC FT Vapor PT PC) LT LC Steam el L T Condensate Liquid

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