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During simulation, issues regarding Henry’s law and custom parameters

2009-12-09View Original

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This post was last edited by hsq8529 on 2009-12-10 08:49. During the simulation process, under what circumstances should Henry’s law be considered? How are custom parameters DEFINED set (for example, to define the thermal coupling between two heat exchangers)? Can it be set in the proii interface as well, in addition to being set in the keyword file (for example, in HX2, the parameter is defined as: DEFINE DUTY(KC/H) AS HX=HX1, DUTY(KC/H), TIMES,1.02)? Experts, please give some advice! :)
Reply #22009-12-09
If the requirements of Henry’s law are met, its application can be considered. Customization can be defined in the input field; value——top left corner (Define).
Reply #32009-12-10
This post was last edited by dragon__x on 2009-12-10 at 19:42. The conditions for Henry’s law apply to ideal dilute solutions; in practical applications, the pressure is often quite high. However, it is at low pressures that the conditions for Henry’s law are more easily satisfied. So, under what actual conditions can a system be considered to be close to an ideal dilute solution, allowing the use of Henry’s law? I took a look at the manual; it seems that the formula below is incorrect. PRO/II relates Henry’s constants to the following functional form: ln Hij = C1 + C2/ T + C3 ln T + C4 P. It should be something like this: ln Hij = C1 + C2/ T + C3 ln T + C4 P

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