Can \"expand\" be translated as \"flash vaporization\" in translation? New question
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The sulphur-free methanol from the intermediate expander (D02) is expanded in the column (T01). My translation: The sulphur-free methanol coming from the intermediate expander D02 is sent to the tower (T01) for expansion. My question: In the process flow, it’s clearly saturated liquid that flashes in D02 and T01 respectively; why then do foreigners use the term “expand”? Why not use Flash? Can I use \"flash evaporation\" to translate \"expand\" in my translation? For further clarification, the intermediate expander D02 is a container. This post was last edited by poatmc on 2009-3-10 18:43]
Try it: The sulfur-free methanol from intermediate expander D02 is sent to tower (T01) for further expansion.
Is it something related to driving operations?:L
I don’t know the specific details; the flash I’ve seen is generally throttling flash； Expand refers to passing through an expander, where for gases it involves an approximately adiabatically reversible expansion. Vaporization is an isenthalpic process ； Reversible adiabatic expansion is a isentropic process, and the expander can recover mechanical work. The latter has a high thermodynamic efficiency, but the equipment is complex. I’m not sure what the situation is like where you are. As a supplementary note, “EXPANDED TO” means “expanded to”, that is, to enter Tower 1 after expansion. This post was last edited by RainWolf on 2009-3-10 14:00]
In my opinion, there’s no need to translate \"expansion\" literally as \"expansion\". In places where work is done, expansion can occur, but from what the original poster has explained, the meaning of this sentence is quite simple: it refers to the transfer of sulfur-free methanol coming out of the intermediate flasher D02 to tower T01. Alternatively, you can simply translate it using the meaning you think is appropriate. Also, why \"expand\"? When foreigners speak, they often use several words with similar meanings; they generally don’t stick to just one word from start to finish. Is using “expand” a somewhat figurative way of expressing it? It actually means evaporation. When translating, it’s best to read the entire text first to understand its general meaning and content; then the meaning of some words becomes easier to figure out. It’s not necessary for the translation to match the dictionary definitions exactly – as long as the meaning is conveyed, that’s sufficient
Whether flash evaporation can be used depends on the actual process conditions. Please check the pressure (P1) of D02 and the pressure (P2) of T01. If P1 is much larger than p2, it should be a flashing process, which can certainly be understood as flashing. I guess it’s a flash evaporation process.