Question In a process and instrumentation of a flash drum, 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 will be designed in the process for the steam flow VI (CV flowrate), vapour product V2 (CV pressure), liquid product V3 (CV level), liquid feed flow V4 (CV flowrate) and steam chest V5 (which allow the steam chest to be rapidly evacuated in emergency situatione). Figure I shows incomplete proces instrumentation 1 diagram of flash drum Vapor steam 0000 Steam chest VS Conde liquid Figure Using any appropriate software (except Microsoft office ar point), design a complete process instrumentation diagram with appropriate control loop (label and direction) regarding on process described above. (Note: use the incomplete diagram given to guide your design) (16 marks) b) Determine e correct fail-safe position for every control valve (V1.12.V3,V4) designed and give reason (see Table !) for a safe operation on cach of the following D) Safest condition achieved by lowest temperature the flash vessel (8 marks) 1) Safest condition achieved by lowest pressure the flash vessel (8 marks) ) Excessive vapor flow to downstream equipment can cause a hazardous situation (8 marks) Vahes Table 1 Fail-close(FIC) OR Fail-open (F/O) Reasons VI V2 V3 V4 (Total: 40 marks)