The Parametric Study for the Shell-and-Tube Heat Exchanger Effectiveness

• Main Authors: Gong, Bao-Jiann, 龔葆健
• Other Authors: Chiang, Ting-Lung
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/30803546801918224760

碩士 === 國立屏東科技大學 === 機械工程系 === 92 === This thesis aims at discussing about the heat transfer and effectiveness of a heat-exchanger that is one of the equipments required to operate a steam power plant. The heat-exchanger in this thesis is used to cool partial ci- rculating water with sea-water；therefor,it can be called a 〝coo- ler〞.Although this equipment only does the heat exchanging,but it affects the volume of electric generator power output.So th- at it should be treated as a key-unit in a power generation sys- tem. Bell-Delaware method was taken to identify those parameters which may have effects on the effectiveness of the Shell-and-Tu be type heat-exchangers.Many numerical experiments are performed ,parameters have been investigated includes:the sea-water inlet temperature,tube materials,tube diameter,buffle-cut percentage, and buffle pitch.Result shows that the sea-water inlet tempera- ture is the key parameter which will have the most prominence e- ffect on the effectiveness.