THERMAL-VAPOUR-COMPRESSION MULTI-EFFECT DISTILLATION (TVC-MED) ARRANGEMENT HAVING A LOW COMPRESSION RATIO

摘要

The invention relates to a multi-effect distillation (MED) desalination arrangement with thermal vapour compression (TVC), having a low compression ratio, which includes latent-heat exchangers having a high latent-heat transfer coefficient, reducing the temperature jump by approximately 1 ºC or less, consequently reducing the pressure differential, and reducing the compression ratio of an ejector to a level of approximately 1+0.08(n-1), n being the number of effects, thereby reducing the specific use of vapour and multiplying the gained output ratio (GOR) of the arrangement and the capacity thereof for producing desalinated water.