• Posts
  • RSS
  • ◂◂RSS
  • Contact

  • Subway Station Fan Cooling

    August 29th, 2019
    ideas, cooling, transit  [html]
    Subway stations can get very hot in the summer. Passengers, train AC units, motors, brakes all warming up a small space. The NYC stations are famously hot in summer (peak measurement of 106.6F!) but even Boston can be unpleasantly warm. Reading about attempts to cool stations, however, what you tend to see is the sort of cooling people would normally construct for buildings. Chillers, ground source heat pumps, ventilation shafts, etc.

    Subway stations, being underground, have enormous heat capacity. This means they're great candidates for night ventilation. Run an enormous amount of air through the stations at night, and they'll stay cool all day. The cool times of day are also the times when passenger volumes are at their lowest, so you have more options for reconfiguring the space.

    For example, in stations with doors you could add another door to the the door frame with a pair of fans mounted on it. During the day it would be open and out of the way, while at night it would be closed and people could use one of the other doors:

    In general, if you can get enormous crowds of people in and out, you can also get enormous amounts of air through.

    Why don't we see subways set up to use this kind of ventilation?

    Comment via: facebook

    Recent posts on blogs I like:

    Collections: Iron, How Did They Make It? Part I, Mining

    This week we are starting a four-part look at pre-modern iron and steel production. As with our series on farming, we are going to follow the train of iron production from the mine to a finished object, be that a tool, a piece of armor, a simple nail, a w…

    via A Collection of Unmitigated Pedantry September 18, 2020

    Learning Game

    I came up with this game. In the game one person thinks of something and then gives the other person a clue. And the other person writes a guess down on a blackboard or a piece of paper. Or really anything you have that's laying around that's av…

    via Lily Wise's Blog Posts September 17, 2020

    Hong Kong Construction Costs

    I think we have found the #2 city in urban rail construction costs, behind only New York. This is Hong Kong, setting a world record for the most expensive urban el and encroaching on Singapore for most expensive non-New York subway. As we look for more da…

    via Pedestrian Observations September 16, 2020

    more     (via openring)


  • Posts
  • RSS
  • ◂◂RSS
  • Contact