Dear Authors,
I have a significant concern regarding the exergetic calculation presented in your paper. Specifically, the control volume of your system, as depicted, shows that the summation of streams 13 and 14 forms stream 15.
According to Table III, the exergetic values of streams 13, 14, and 15 are listed as 7439.20, 2227.09, and 9675.07, respectively. However, the summation of 7439.20 and 2227.09 equals 9666.29, which is lower than the stated value of 9675.07 for stream 15. This discrepancy implies negative exergy destruction, which raises concerns about the validity of the overall calculation.
Could you please clarify this issue or provide an explanation for this inconsistency?
Thank you for your attention to this matter.