The discussion centers on the possibility of turbine exhaust temperatures reaching below zero Celsius, with one participant calculating an exhaust temperature of 176 K under specific inlet conditions of 7.8 MPa and 625 K. There is confusion regarding the nature of the turbine, with inquiries about whether it is a steam turbine and the need for the original calculations to be shared for clarity. Participants emphasize the importance of adhering to forum rules, particularly in the homework section, and express frustration over missing calculations that were previously posted. The conversation highlights the complexities of thermodynamic calculations, particularly when using a van der Waals gas model instead of an ideal gas. Overall, the feasibility of achieving negative exhaust temperatures remains a key point of contention.
