Hi everyone,

I have 2 Aspen HYSYS questions as follows:

Would appreciate a detailed answer and some snapshots of HYSYS if possible.

Thank you!

There is a V-L Vessel, inlet stream pressure is 6156.5kPa, Vapour outlet stream pressure is 6106.5kPa and liquid outlet stream pressure is 6136.5kPa, how can a user define this vessel Delta P to obtain the correct pressure profile? (1 Point) A. Define Delta P for Inlet as 50kPa and Delta P for Vapour outlet as 0kPa. B. Define Delta P for Inlet as 0kPa and Delta P for Vapour outlet as 50kPa. C. Define Delta P for Inlet as 30kPa and Delta P for Vapour outlet as 20kPa. D. Define Delta P for Inlet as 20kPa and Delta P for Vapour outlet as 30kPa. 44 Cooling water is used to cool a gas stream. All heat exchanger inlet streams are fully specified, both shell and tube side pressure drops are given, and gas stream outlet T is specified. The heat exchanger is converged, however, after checking the performance, the user found that Min. Approach is 30C, and the duty is lower than expected. Which of the following is the best option to maximize the heat exchanger duty? (1 Point) A. Delete the gas stream outlet T, define LMTD as the Specification to effectively use the cold utility. B. Adjust the gas stream outlet T until the Min. Approach is lower to effectively use the cold utility. C. There is no way to optimize the heat exchanger because all parameters are defined. D. Delete the gas stream outlet T, define Min. Approach larger than 5C but smaller than 30C as the Specification to effectively use the cold utility