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Cooling towers.(Letter to the editor)
On page 20 of the April 30 "Nuclear Energy" issue is a picture of a coal-fired power plant showing a huge pair of dark plumes emanating from the plant in a sunlit backdrop.
The left plume emanating from the smokestack is a valid cloud of flying ashes that pollute the atmosphere. However, the larger plume shown in the center of the picture is condensed water vapor emanating into a humid atmosphere from the water-cascade-cooled cooling towers. This water vapor does not pollute the atmosphere. It only humidifies the atmosphere.
Cooling towers are needed to condense the steam exhaust exiting from the steam turbines after the superheated steam has done its work in the turbines. The condensed steam exhaust is in the form of hot water that is subsequently reheated by the coal-fired boiler to superheated steam. The condensed steam exhaust creates a vacuum at the exhaust end of the turbine, while the ...
- Water vapor plumes from TMI-1 testing. (Three Mile Island Nuclear Station)
- Press release article from: PR Newswire August 5, 1988 700+ words
WATER VAPOR PLUMES FROM TMI-1 TESTING MIDDLETOWN, Pa., Aug...outage at Three Mile Island Unit 1 could produce wisps of water vapor plumes from the plant's two cooling towers over the weekend. TMI-1 shut down June 17 for a refueling...
- Marley Cooling Technologies features its new water conservation technology,...
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...water conservation technology, designed to recover water vapor discharged from a production system cooling tower...to liquid form. Can be retrofitted to existing cooling towers and recovers a relatively pure condensate that can...
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- How to manage water vapor in vacuum chambers. (Vacuum Tech).(Brief Article)
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- Observed and Simulated Upper-Tropospheric Water Vapor Feedback
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...tropospheric moistening due to the water vapor feedback. Results are compared...and corresponding increases in water vapor (specific humidity) of 10%-25% C^sup -1^. Increases in water vapor are largest at pressures below 400...
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- Newspaper article from: Sensor Business Digest January 1, 2002 700+ words
...measurement quantifies the amount of water vapor in air or other gases. A measurement...reflects the amount of moisture (water vapor) air can hold at certain temperature...RH is the ratio of existing water vapor pressure to the saturation water...
- Please don't let me be misunderstood.(satellite images of water vapor)
- Weatherwise Grenci, Lee January 1, 1999 700+ words
If fuzzy satellite images of water vapor were inclined to impersonate a rock...popular misconception that dark areas on water vapor images mean "the air is dry." Actually, dark areas represent water vapor in the middle troposphere. Moreover...
- Humans affect water vapor rise, study says: Man-made gas emissions included in...
- Newspaper article from: Contra Costa Times (Walnut Creek, CA) September 18, 2007 700+ words
...by another fingerprint, this one on water vapor in the atmosphere. Scientists used...the climate to show that the rise in water vapor could not have been caused by natural...the models, the resulting atmospheric water vapor increases are very close to those actually...
