Topic
Vapor-compression desalination
About: Vapor-compression desalination is a research topic. Over the lifetime, 525 publications have been published within this topic receiving 10830 citations. The topic is also known as: Vapor compression desalination & VC.
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TL;DR: In this paper, it was shown that the process of evaporation and diffusion of water vapor from any water surface into the body of air above it is exactly similar to that of the conduction or diffusion of specific heat energy from the water surface to the same body of water.
Abstract: It is shown that the process of evaporation and diffusion of water vapor from any water surface into the body of air above it is exactly similar to that of the conduction or "diffusion" of specific heat energy from the water surface into the same body of air. Because of this similarity it is possible to represent the ratio R of the heat loss by conduction to that by evaporation by the formula R=.46Tw-Ta/Pw-PaP/760 where Ta and Pa are the original temperature and vapor pressure of the air passing over the lake, and Tw and Pw are the corresponding quantities for the layer of air in contact with the water surface. The substitution of R times the evaporation loss for the value of the conduction heat loss in the Cummings equation for evaporation makes it an exact equation for the determination of evaporation from any water surface in terms of the net radiant energy absorbed by the water and the heat stored in the water.
993 citations
Book•
20 Mar 2002
TL;DR: In this article, the authors present the resources and need for water desalination, and present an economic analysis of the desalinization process, including factors affecting product cost and economic calculations.
Abstract: Introduction - Resources and need for water desalination, Composition of seawater Single Effect Evaporation - Single effect evaporation, Evaporators Single Effect Evaporation - Vapor Compression, Single effect thermal vapor compression, Single effect mechanical vapor compression Multiple Effect Evaporation - Developments in multiple effect evaporation, Forward feed multiple effect evaporation Multiple Effect Evaporation - Vapor Compression, Parallel feed multiple effect evaporation, Forward feed multiple effect evaporation with thermal vapor compression Multi Stage Flash Distillation - Developments in MSF, MSF flashing stage Reverse Osmosis - Historical background, Elements of membrane separation Reverse Osmosis Feed Treatment, Biofouling, and Membrane Cleaning - Nee for pretreatment processes in RO, Testing methods Associated Processes - Venting of non-condensable gases, Steam jet ejectors Economic Analysis of Desalination Processes - Factors affecting product cost, Elements of economic calculations. Appendices: Thermodynamic Properties Thermodynamic Losses Heat Transfer Coefficients Computer Package.
790 citations
TL;DR: In this paper, the performance of three hydrophobic microporous membranes were evaluated under vacuum enhanced direct contact membrane distillation (DCMD) with a turbulent flow regime and with a feed water temperature of only 40°C.
385 citations
TL;DR: In this article, the closed air cycle humidification-dehumidification process was used for water desalination using solar energy, where the circulated air by natural or forced convection was heated by the hot water obtained either from a flat plate solar collector or from an electrical heater.
188 citations
TL;DR: In this article, a comparison of four different types of single-effect evaporator desalination systems is performed, including thermal (TVC), mechanical (MVC), absorption (ABVC), and adsorption (ADVC), based on the analysis of the performance ratio, specific power consumption, specific heat transfer area and specific cooling water flow rate.
164 citations