This document discusses new energy-efficient air conditioning technology that uses desiccant materials and evaporative cooling. It provides a 100-year history of air conditioning before explaining that the technology was developed to reduce the 5% of U.S. energy used by traditional AC systems. The breakthrough merges evaporative cooling with desiccant drying into an affordable system that removes moisture without harmful CFCs. It works by using a desiccant like lithium chloride to absorb humidity and leave warm, dry air that is then cooled through indirect evaporative cooling to produce cool, dry output air using 90% less energy. This benefits the environment, energy costs, and taxpayers through incentives like tax breaks.

1. Energy Saving Air Conditioners A Public Service Message brought to you by David L Flatt Alexis Waldin Jeff Baier Chelcie Plunkett

3. Why is it out there?

4. Why is it changing?

5. What is the major breakthrough?

6. Who does this new technology benefit?

8. Why is the new Technology out there? Researchers have been trying to find an answer to the expensive use of energy it takes to cool America's homes and businesses. About 5 % of the entire energy used in the United States each year goes to running air conditioners.

9. What’s new? What's new is the merging of evaporative cooling and desiccant drying into a cost-effective system, making this type of air conditioning viable for commercial and residential processes for cooling.

10. Why is it changing? This is a direct answer to more efficient and energy saving system with more effective cooling system without the use of chlorofluorocarbons (CFC’s) that are harmful to the environment and natural eco-system of our planet.

11. What is the major breakthrough? A desiccant used to absorb moisture from humidity and turn it to pure water using a solution of lithium chloride or calcium chloride, (about 44 percent salt by volume). Another membrane separates the desiccant from air traveling through a channel. The polymer membrane has big enough that water vapor passes through easily while the salty liquid stays put.

13. Then it's back to the current technology, called indirect evaporative cooling.

14. Through a second channel, water evaporates to cool a secondary airstream.

16. How it works cont.

17. Sources http://www.technologyreview.com/energy/25623/ http://thomas.loc.gov/cgi-bin/bdquery/z?d110:HR1424 http://en.wikipedia.org/wiki/Air_conditioning#cite_note-7 http://www.i-isaw.com/ http://www.nrel.gov/