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Study on the Energy-saving Technology for Frequency Varied Ventilation in the Hong Kong-Zhuhai-Macao Bridge's Tunnel Project
Author(s): Tang Zhaozhi, Wang Mingnian, Yu Li, Chao Feng
Pages: 1418-
1421
Year: 2012
Issue:
z1
Journal: Chinese Journal of Underground Space and Engineering
Keyword: 港珠澳大桥; 变频技术; 失速; 优化控制;
Abstract: 为达到“节能减排”的目的,需对长隧道运营中的通风节能技术开展研究,特别是随着长大公路隧道修建数量的增大,通风必将成为隧道运营中的“耗能大户”.应用变频调速技术通风控制的港珠澳大桥隧道工程为依托,,采用CFD方法对并联变频风机的失速及控制优化进行研究,并对隧道内运营通风采用变频调速技术进行了节能效益分析.结果表明当风机并联失速转速比为6.25以及尽量使两台并联变频风机以相同的转速运行,同时隧道内风机采用变频调速技术时可以大幅度降低隧道的运营通风费用.
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