RESERCH OF GAS WATER HEATER CYCLING SYSTEM WITH PIPING ANTI-CORROSION TECHNOLOGY

• Main Authors: Wen-Cheng Peng, 彭文正
• Other Authors: 蘇艾
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/33555739570364823608

碩士 === 元智大學 === 機械工程學系 === 100 === Abstract This study is based on the experimental method to investigate the gas water heater cycling piping system, for pure water, tap water, groundwater observation of three kinds of corrosion, rectangular box to show the flow patterns in the variations of the solution temperature and concentration are the object of study. In this experiment, the accelerated corrosion rate of laboratory immersion corrosion test of metal and electrochemical methods, three kinds of water quality to pure water, tap water, groundwater as a corrosion observed. Flow field experiments rectangular boxes, copper tube and acrylic sheet components, In order to visualize the flow, the shadowgraph technique is used. In order to understand the structure of the flow field and flow field of temperature and concentration measurement analysis and mass transfer rates. The experimental results show that the laboratory immersion corrosion test of metal in pure water to soak the surface corrosion is more uniform, followed by tap water, groundwater was worse than the other, the surface is more irregular and large areas of corrosion. The flow field experiments by the concentration distribution and flow situation of the flow field, brass to produce uniformity of corrosion.