Quote:
Originally Posted by 06hdfxdwg
Another thing i'd love to see are the mechanical drawings that Jarros,Baum and Bolles have come up with. Being a pipefitter myself,i just can't help but wonder what they've specked out for this job. Is each building going to have its heating and cooling systems independent of each other or are they going to all be fed by one central utility plant in the basement somewhere? Are they going to buy steam from Con Ed or are they going to make there own steam or hot water for heat or are they going to have one central chillwater plant or independent plants for each building?? Theres gotta be miles of pipe no matter how they configured it though. Interesting...........well to me anyway. lol
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From what I've read, the original plan was to use the Hudson River's waters to provide the chilled water supply for the whole WTC site (the warmed return water was to be dumped back into the Hudson). This was basically the cooling system used for the entire old WTC complex. However, environmental groups protested the design and scope of this cooling system type because it would have sucked in a lot of fish and fish eggs in the process of drawing in the chilled water supply.
So now, each of the major towers have their own cooling system that uses NYC drinking water instead of the Hudson for its supply. And instead of dumping the return water into the Hudson (which would be wasteful because it's not-inexpensive drinking water), the return water will release its heat at the cooling towers at upper floors and recirculated through the system again.
That said, the original cooling system design will still be used to supply chilled water to the shopping concourses, transportation hall, museum, and other public areas within the site. This system will now, of course, be much smaller in scope and scale, but it still draws its water supply from the Hudson and dumps return water back into the river.
http://query.nytimes.com/gst/fullpag...rkeeper&st=cse
http://cityroom.blogs.nytimes.com/20...-trade-center/
As for the steam supply - I can't find any information. Perhaps you can find something. I would expect the site to have its own boilers because buying steam isn't very cheap in the long run.