Home
Search:
1146 feeds
357 categories
0 articles (<24 hours)
34 registered users

Use the Mobile version
Mobile

Follow our Twitter feed

View our Linkpartners
Links

Username:
Password:

Register | Retrieve

Science


RSS FeedsCondensation enhancement: Toward practical energy and water applications
(PHYSorg.com Chemistry)

 
 

18 september 2018 15:10:02

 
Condensation enhancement: Toward practical energy and water applications
(PHYSorg.com Chemistry)
 


Condensation heat transfer plays an essential role in the efficiency of energy-intensive industrial technologies including power generation, energy utilization, water desalination and harvesting, air-conditioning, and thermal management of electronics. It is well known that dropwise condensation on the hydrophobic surface (Fig. 1A), where the frequent roll-off of condensed droplets, e.g. on vertical surfaces, helps to refresh the surface that is exposed to the vapor, has an order of magnitude higher heat transfer efficiency than that of filmwise condensation on the hydrophilic surfaces (Fig. 1B). Promoting dropwise condensation by surface modification has thus been of great interest since its discovery. However, the long-standing challenge for better condensation heat transfer performance is to improve both droplet growth and surface refreshing. Compared to water-repellent micro/nanostructured materials for self-cleaning, drag reduction, anti-corrosion and anti-fogging, it is extremely challenging to create large-area superhydrophobic surfaces cost-effectively on metals with high thermal conductivity to fulfill both fluid mechanics and thermal requirements.


 
12 viewsCategory: Science > Chemistry
 
3-D electron microscopy uncovers the complex guts of desalination membranes
(PHYSorg.com Chemistry)
Understanding surface science to manufacture quality cosmetics
(PHYSorg.com Chemistry)
 
 
blog comments powered by Disqus


Copyright © 2008 - 2024 Indigonet Services B.V.. Contact: Tim Hulsen. Read here our privacy notice.
Other websites of Indigonet Services B.V.: Nieuws Vacatures Science Tweets Nachrichten