| 摘要 |
A passive ventilation system and method for venting hydrogen from a chamber housing a battery. The system comprises a battery chamber with an exhaust opening and an inlet opening near the upper end of the chamber. A heat conductive, gas impervious conduit extends through the chamber from the inlet opening to a position near the lower end of the chamber. The conduit includes a horizontal portion that allows heat transfer between the interior and exterior of the conduit to equalize the temperature of the gas in the conduit and the gas inside the chamber. In this manner, the incoming fresh air will reach the same temperature as the inside gas before it descends to the lower end of the chamber thereby minimizing convective flow in the absence of hydrogen build-up in the chamber.
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