소개글
[열공학] V-shaped Promoter in Heat Exchanger(영문)에 대한 자료입니다.
목차
1. Choose the main journal
2. The contents of paper
3. Our team idea
본문내용
2. The contents of paper
2-1. Object
Passive cooling techniques are key technologies (ex. nuclear reactors), because these can drastically improve the safety and reliability of the reactors.
=> Techniques that increase the natural convection heat transfer rates should be developed.
* previous techniques
techniques and devices
shortness
use a finned surface
thicknesses become very large
install promoter
(small roughness elements,
rectangular ribs)
no appreciable increase
in heat transfer rates
Present authors have proposed a unique type of promoter : "V-shaped" is the best.
And they experiment to find adequate "height and angle"
2-2. Experimental Apparatus and Measurements
*Apparatus
- heat transfer plate and side plate
- V-shaped promoter(1mm thick vinylchloride resin plate)
- fluid : water
The whole apparatus was submerged