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Teaser Infrared Image - What is it?

This week’s Teaser Infrared Image is a marvel in vertical transportation engineering!

Infrared Image

Leave your guess in the comment section, and check back on Thursday for the answer!

8 comments to Teaser Infrared Image – What is it?

  • Julian Benton

    The top handrail of an escalator.

  • Ryan

    An escalator.

  • Pradeep Ravi

    its an escalator

  • Dan Laughbon

    Yes , it is an escalator or two of them if you like. Most of the heat is seen on the “hand rail” not just because it rotates with the steps but also because it has a higher emissivity that the metal around it.Was this on one of your trips too?

  • Aaron Marine

    The escalator part is obvious. I would say agree with Dan on the hand rail as far as the emissivity, but also it could be the chain that drives the hand rail could be either wearing and causing additional heat, or it is not paired correctly with the chain that drives the steps because if you’ve ever been on an escalator and the handrail goes at a different speed than the stairs or jumps while it is running I think this could cause addition heat in the hand rail. Also you’ll notice on the stairs there is a slightly warmer area near the edge of the stairs and this would most likely be because of the escalator running and heat transferring from the chain that drives the steps. (I used to work for a manufacturer that assembled the chains that drives the steps and we would also cut, package and pair up chains for the hand rails).

  • I’ve often found railings on the “up” escalator to be warmer than the “down” one, especially when under significant load. Always wondered if the “up” ones wear out faster since it seems like they have to work harder?!?!

  • Lee Windschitl

    I would imagine the main reason for the higher temp on the hand rails is merely due to the friction between it and the immobile frame underneath. Gravity would be a factor in the “down” being cooler than the “up” side. This picture was almost too easy Fluke :P

  • Lee Windschitl

    See how the hand rail is hotter around the bend? Greater friction

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