|Table of Contents|

Performance of Series Air-handling System of Spray and Tailrace Tunnel Ventilation

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2009年06期
Page:
745-750
Research Field:
Publishing date:

Info

Title:
Performance of Series Air-handling System of Spray and Tailrace Tunnel Ventilation
Author(s):
YU Yan-shunZHANG Shao-fan
School of Power Engineering,NUST,Nanjing 210094,China
Keywords:
tailrace tunnel ventilation spray device air-handling system heat and mass transfer
PACS:
TU831.3
DOI:
-
Abstract:
In order to break through the restriction of tunnel length on the application of tailrace tunnel ventilation technology and extend the technology application scope,a series air-handling system of spraying the tailrace tunnel ventilation with low-temperature water is presented.The mathematical models of the counter and concurrent flow spray systems are established and the analytical solutions are derived.The influences of ventilation rate,spray coefficient,water jet pressure and the location of spray device on the operation performances of the series air-handling system are analyzed.The results indicate that it is useful to improve the heat and moisture treatment of the series air-handling system by using the priority air-handling mode of tailrace tunnel ventilation and increasing the spray coefficient,and the ventilation rate and water jet pressure have the less influence on the operating performance of the series air-handling system.

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Last Update: 2012-11-19