BIOS 101- Final Exam Guide - Comprehensive Notes for the exam ( 50 pages long!)
30 Nov 2017
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Question 1: the temperatures and flow rates in kmol/hr of all streams in the process for x = 0. 25. The temperature and pressure stream 1 is the same as stream 2 because there is no change in either temperature or pressure. We know the pressure of stream 3, which is 60 bar. The stream is going through the cooler, meaning no change in pressure. Then, the stream goes through heat exchanger, meaning no change in pressure. That means pressure of stream 5 and 6 is 60 bar. Only thing that changes across the cooler and heat exchanger is temperature. We are given a pressure of the stream 8 (after throttling valve). The temperature after stream 8 is at boiling point, so we can get the value from athena. Therefore, i found the temperature of 116. 69 k. we are also given an assumption that no pressure drop in the separator, the cooler and the heat exchangers.
