- Tytuł:
- A defnition of near-critical region based on heat capacity variation in transcritical heat exchangers
- Autorzy:
-
Trela, M.
Kwidziński, R.
Butrymowicz, D. - Tematy:
-
krytyczny stan termodynamiczny
obszar około-krytyczny
pojemność cieplna
wymiana ciepła
critical thermodynamic state
heat transfer
near-critical region
speci.c heat capacity - Pokaż więcej
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Powiązania:
- https://bibliotekanauki.pl/articles/240043.pdf Link otwiera się w nowym oknie
- Opis:
- In the paper, a method for determination of the near-critical region boundary is proposed. The boundary is evaluated with respect to variations of specific heat capacity along isobars. It is assumed that the value of specific heat capacity inside the near-critical region exceeds by more than 50% the practically constant value typical for fluids under normal conditions. It appears that large variations of heat capacity are also present for high-pressure subcritical states sufficiently close to the critical point. Therefore, such defined near-critical region is located not only in supercritical fluid domain but also extends into subcritical fluid. As an example, the boundaries of the near-critical region were evaluated for water, carbon dioxide and R143a.
- Dostawca treści:
- Biblioteka Nauki
Artykuł