شماره ركورد كنفرانس :
360
عنوان مقاله :
Investigating the process of sessile water droplet freezing
پديدآورندگان :
Rajabi M. نويسنده Department of Mechanical Engineering, Babol Noshirvani University of Technology, Shariati Street, Babol, Iran. , Rastegar S. نويسنده Assistant Professor, Faculty of Polymer and Color Engineering, Amirkabir University of Technology
كليدواژه :
protrusion , Nucleation , freezing , Heat Transfer , Freezing front
عنوان كنفرانس :
The 6 th International Color & Coating Congress
چكيده فارسي :
The process of freezing of sessile water droplets on polycarbonate surface was investigated.Freezing of water droplets on a solid surface is a nucleation and crystal growth process and commonly occurs via heterogeneous nucleation .The growth of freezing front is initiated from bottom of the droplet and gradually is reached to top of the droplet. Heat transfer occurs through the formed ice layer. It was found that initially due to small thickness of ice layer, heat transfer rate was fast and when the thickness of the ice layer became greater, heat transfer rate was decreased. Also the droplet was deformed at the top during freezing due to the different specific volumes of ice and water.
شماره مدرك كنفرانس :
4184098
