06 Sep 2012
00:00
Seminar // Energy and Water Nexus: Critical for the 21st Century
Public Lecture by Dr. Arthur Bergles of Rensselear Polytechnic Institute
The dimensions of US and world energy consumption will be summarized. While there are serious concerns about the environmental impact of the enormous energy usage, and eventual shortage of non-renewable energy resources, additional data suggest that shortages of fresh water are already upon us. Since large amounts of water are used in mining of energy resources and energy conversion, this leads to competition for water and frequent pollution of the water used for mining and power production. The territory of mechanical engineers in this energy - water nexus will be outlined, and various proposals to mitigate the water distribution problem will be described. Techniques to allow use of lower-quality water in power plants will be considered. The seminar will conclude with a proposal to reduce the water flow rate required to cool power plant condensers.