Subway Environmental Simulation Program and Subway Environmental Design Handbook Validation Through Field Testing. Part 3: Station Stratification and Heat Sink Tests

摘要

The report covers the field testing program and comparative computer simulations relative to air stratification in high, domed stations; effectiveness of station air conditioning systems; effectiveness of gravity-type dome relief and the impact of the heat sink effect on station temperatures. The anticipated stratification of the air in the stations did not occur. The gravity-type dome relief systems were found to be not effective with actual air flows generally being much less than simulated flows. The net heat sink effect over the ten-month test period was found to be almost nil.