Comments on: Holland Puts a New Spin on Old Technology to Combat Climate Change http://ecolocalizer.com/2008/12/04/holland-puts-a-new-spin-on-old-technology-to-combat-climate-change/ News & commentary on sustainability, activism, urban planning, politics, and our world. Sun, 12 Feb 2012 17:54:11 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: employee clockin clockout http://ecolocalizer.com/2008/12/04/holland-puts-a-new-spin-on-old-technology-to-combat-climate-change/comment-page-1/#comment-61239 employee clockin clockout Fri, 17 Jul 2009 07:36:20 +0000 http://ecoworldly.com/?p=2066#comment-61239 ADD kids revolving door energy crisis solved ADD kids revolving door energy crisis solved

]]> By: bdforever http://ecolocalizer.com/2008/12/04/holland-puts-a-new-spin-on-old-technology-to-combat-climate-change/comment-page-1/#comment-61212 bdforever Mon, 09 Mar 2009 16:53:03 +0000 http://ecoworldly.com/?p=2066#comment-61212 This article says more about this website than about the article. The figures mentioned in this article are away from plausibility by several orders of magnitude. Even a first-grader who is able to operate a calculator will notice this nonsense. Of course, it is possible *some* energy this way. But the generator built into the door has a CO2 footprint that the door will never make up. You guys at 'ecoworldly': that's exactly the way of environmental activities we *don't* need. Better go and hug a tree, leave the writing to people who think :-) This article says more about this website than about the article. The figures mentioned in this article are away from plausibility by several orders of magnitude. Even a first-grader who is able to operate a calculator will notice this nonsense.
Of course, it is possible *some* energy this way. But the generator built into the door has a CO2 footprint that the door will never make up.
You guys at ‘ecoworldly’: that’s exactly the way of environmental activities we *don’t* need. Better go and hug a tree, leave the writing to people who think :-)

]]> By: Rona http://ecolocalizer.com/2008/12/04/holland-puts-a-new-spin-on-old-technology-to-combat-climate-change/comment-page-1/#comment-61236 Rona Tue, 16 Dec 2008 08:12:12 +0000 http://ecoworldly.com/?p=2066#comment-61236 Interesting idea and presumably it is not so hard to get through that old people and disabled people have trouble operating it (though it can hardly be accessible for wheelchairs). I just wonder how much heat energy is lost by having a revolving door? Interesting idea and presumably it is not so hard to get through that old people and disabled people have trouble operating it (though it can hardly be accessible for wheelchairs).

I just wonder how much heat energy is lost by having a revolving door?

]]> By: sweavo http://ecolocalizer.com/2008/12/04/holland-puts-a-new-spin-on-old-technology-to-combat-climate-change/comment-page-1/#comment-61238 sweavo Thu, 11 Dec 2008 15:35:42 +0000 http://ecoworldly.com/?p=2066#comment-61238 They didn't read the press release right ( http://www.boonedam.us/inc/press/pressdetail.asp?PressId=182 ) The door gives a *saving* of 4600kWH/year compared to sliding doors. The saving comes from keeping the heat in! Not from the generator, which almost works up enough power to light some LEDs. They didn’t read the press release right ( http://www.boonedam.us/inc/press/pressdetail.asp?PressId=182 )

The door gives a *saving* of 4600kWH/year compared to sliding doors. The saving comes from keeping the heat in! Not from the generator, which almost works up enough power to light some LEDs.

]]> By: Tracie http://ecolocalizer.com/2008/12/04/holland-puts-a-new-spin-on-old-technology-to-combat-climate-change/comment-page-1/#comment-61210 Tracie Fri, 05 Dec 2008 16:17:35 +0000 http://ecoworldly.com/?p=2066#comment-61210 I should have mentioned that the article got the energy calculation part wrong: the door *saves* 4600kWh per year. Regarding the energy that is generated from the door: "The revolving door is equipped with a special generator that is driven by the human energy applied to the door whilst the generator controls the rotating speed of the door and makes it safer. The ceiling of the revolving door is made of safety class and gives a clear view of the technology. A set of super capacitors stores the generated energy as a buffer and provides a consistent supply for the low energy LED lights in the ceiling. In case the LED lights have used-up all the stored energy, the highly efficient control unit will switch to the alternative mains supply of the building. This ensures that the door is illuminated at all times, even when the passenger flow is minimal." You can see the entire press release about the door by going here: http://www.boonedam.us/inc/press/pressdetail.asp?PressId=182. I should have mentioned that the article got the energy calculation part wrong: the door *saves* 4600kWh per year. Regarding the energy that is generated from the door:
“The revolving door is equipped with a special generator that is driven by the human energy applied to the door whilst the generator controls the rotating speed of the door and makes it safer. The ceiling of the revolving door is made of safety class and gives a clear view of the technology. A set of super capacitors stores the generated energy as a buffer and provides a consistent supply for the low energy LED lights in the ceiling. In case the LED lights have used-up all the stored energy, the highly efficient control unit will switch to the alternative mains supply of the building. This ensures that the door is illuminated at all times, even when the passenger flow is minimal.”

You can see the entire press release about the door by going here: http://www.boonedam.us/inc/press/pressdetail.asp?PressId=182.

]]> By: Tracie http://ecolocalizer.com/2008/12/04/holland-puts-a-new-spin-on-old-technology-to-combat-climate-change/comment-page-1/#comment-61211 Tracie Fri, 05 Dec 2008 15:50:43 +0000 http://ecoworldly.com/?p=2066#comment-61211 BTW, the company that built the door is Boon Edam. www.boonedam.us. BTW, the company that built the door is Boon Edam. http://www.boonedam.us.

]]> By: Ronald http://ecolocalizer.com/2008/12/04/holland-puts-a-new-spin-on-old-technology-to-combat-climate-change/comment-page-1/#comment-61209 Ronald Fri, 05 Dec 2008 14:24:25 +0000 http://ecoworldly.com/?p=2066#comment-61209 Regardless of all the calculations, this idea is firmly copyrighted by Andre Franquin, when he had his cartoon hero Gaston Lagaffe (or Guust Flater in Dutch) invent a machine that, when someone would push open the door to his office, would do a variety of things, amongst which feed his fish, get the juice from an orange, grind some coffee. Needless to say, the effort to open the door was very high...:-) Regardless of all the calculations, this idea is firmly copyrighted by Andre Franquin, when he had his cartoon hero Gaston Lagaffe (or Guust Flater in Dutch) invent a machine that, when someone would push open the door to his office, would do a variety of things, amongst which feed his fish, get the juice from an orange, grind some coffee. Needless to say, the effort to open the door was very high…:-)

]]> By: Sven http://ecolocalizer.com/2008/12/04/holland-puts-a-new-spin-on-old-technology-to-combat-climate-change/comment-page-1/#comment-61208 Sven Fri, 05 Dec 2008 14:11:21 +0000 http://ecoworldly.com/?p=2066#comment-61208 Ryan, I think you're the one not getting it here. Ben's calculation is correct (even if 2.5 dl is a rather large cup of coffee) The energy it takes to make a cup of coffe, per Ben's math, is 73kJ. Ben then showed that if you want to generate that amount of energy by walking through a door, assuming generously as he did that it takes 10 seconds, then your power (energy per unit of time) would have to be 7.3kW. Which is unreasonable. These numbers cannot be correct. Ryan, I think you’re the one not getting it here. Ben’s calculation is correct (even if 2.5 dl is a rather large cup of coffee)
The energy it takes to make a cup of coffe, per Ben’s math, is 73kJ.

Ben then showed that if you want to generate that amount of energy by walking through a door, assuming generously as he did that it takes 10 seconds, then your power (energy per unit of time) would have to be 7.3kW. Which is unreasonable.

These numbers cannot be correct.

]]> By: Mary http://ecolocalizer.com/2008/12/04/holland-puts-a-new-spin-on-old-technology-to-combat-climate-change/comment-page-1/#comment-61213 Mary Fri, 05 Dec 2008 13:06:12 +0000 http://ecoworldly.com/?p=2066#comment-61213 Well what a good debate, if nothing else it has got people to do a bit of mathematics! The good thing is to give consideration to anything at all that will save or produce energy ecologically. It does not have to be a lot each small bit adds up to a bigger bit (I think thats mathematically correct!) Well what a good debate, if nothing else it has got people to do a bit of mathematics! The good thing is to give consideration to anything at all that will save or produce energy ecologically. It does not have to be a lot each small bit adds up to a bigger bit (I think thats mathematically correct!)

]]> By: Barry http://ecolocalizer.com/2008/12/04/holland-puts-a-new-spin-on-old-technology-to-combat-climate-change/comment-page-1/#comment-61207 Barry Fri, 05 Dec 2008 12:48:28 +0000 http://ecoworldly.com/?p=2066#comment-61207 It's "The Netherlands", not 'Holland'. Small but significant difference. It’s “The Netherlands”, not ‘Holland’. Small but significant difference.

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