Research Article
Complementary Ventilation Design Method for a Highway Twin-Tunnel Based on the Compensation Concept
Table 3
Comparison of draught fan configurations for two design methods.
| | | Current method [32] | The Improved Method | | Air volume | Require pressure | Gross power | Air volume | Require pressure | Gross power | | (m3/s) | (Pa) | (kW) | (m3/s) | (Pa) | (kW) |
| | Jet fan | L | 450 | 250.1 | 660 | 320 | 126.5 | 240 | | 450 | 183.8 | 420 | 320 | 92.9 | 180 | | R | 450 | 269.7 | 660 | 480 | 306.9 | 810 | | 450 | 132.5 | 420 | 480 | 150.8 | 510 | | Axial fan | 218 | 42 | 630 | 175 | 27.1 | 325.9 | | Total | — | 920.1 | 2790 | — | 731.3 | 2065.9 |
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Note: integrated values for the jet fan power are based on a value of 30 kW for a single jet fan.
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