Analysis of Energy-saving Performance for Cooling Tower Fan

• Main Authors: Kuan-Ming Chen, 陳冠銘
• Other Authors: Yann-Chang Huang
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/68984458063946233283

碩士 === 正修科技大學 === 電機工程研究所 === 101 === In recent years as the business development and technology of the progress of human industrial and economic activities in the rapid growth arising from chemicals and waste, not only cause air pollution, but also is rapidly changing the Earth's atmospheric structure; among which fossil fuels combustion after the resulting carbon dioxide gas emissions into the atmosphere large amounts, causing global warming so that the surface temperature is gradually increased. So the search for alternative energy sources, renewable energy and energy conservation policies are solutions to global warming, the current alternative energy, renewable energy sources are in the development stage, so from the energy conservation aspects, you can immediately see pole shadow, if you want to perform the purpose of energy conservation , will proceed from the cooling water system is the fastest and most effective ways. Maximum primary energy consumption in the cooling tower equipment for the cooling tower fan, and the fan motor is mostly in the induction motor as the driving force, the load torque is proportional to the square lines with the speed change. Therefore, the use of frequency control technology installed in the cooling tower electric and plumbing systems, and with the process requirements set cooling water temperature, automatically detects the temperature derating or start to reduce the cooling water and the provision of the fan motor speed control soft start function. In addition, the inverter control technology is also applicable to reduce equipment operating noise and reduce the motor power demand functions. The results of this study confirm the installation of the inverter cooling tower fan energy efficiency and recycling have practical benefits. Keywords: cooling tower fan, inverter control, benefit analysis