Thermodynamic Modelling of an Ejector with Compressible Flow by a One-Dimensional Approach

Autor: Claude Chacoux, Georges Descombes, Christelle Périlhon, Yveline Marnier Antonio
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Entropy, Vol 14, Iss 4, Pp 599-613 (2012)
Druh dokumentu: article
ISSN: 1099-4300
DOI: 10.3390/e14040599
Popis: The purpose of this study is the dimensioning of the cylindrical mixing chamber of a compressible fluid ejector used in particular in sugar refineries for degraded vapor re‑compression at the calandria exit, during the evaporation phase. The method used, known as the “integral” or “thermodynamic model”, is based on the model of the one‑dimensional isentropic flow of perfect gases with the addition of a model of losses. Characteristic curves and envelope curves are plotted. The latter are an interesting tool from which the characteristic dimensions of the ejector can be rapidly obtained for preliminary dimensioning (for an initial contact with a customer for example). These ejectors, which were specifically designed for the process rather than selected from a catalog of standard devices, will promote energy saving.
Databáze: Directory of Open Access Journals