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AMERICAN THERMAL POWER Electricity from Low Temperature Waste Heat |
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VLTHE for Power Plants VLTHE technology benefits power plants in two main areas: increased peak output, and reduced Greenhouse Gas and thermal emissions. Cost savings on fuel are another important benefit for power plants. Over 60% of the energy in coal, and 40% of the energy in gas (in a co-gen plant) is expelled as heat. The simplest place to extract waste heat from a power plant is from the turbine cooling water, where a virtually limitless supply of heat exists, typically at about 120ºF/49ºC. Some power plants must limit their peak output due to legal limits of the heat they can expel to the rivers, lakes or oceans they use for this cooling. In general, the VLTHE can make 1 MW of power from less than 2 MW of waste heat. For every megawatt of VLTHE power, the plant gets that extra MW of output, plus reduces its wastewater heat by enough to allow conventional generation of another 500kW. Eventually VLTHE can be integrated in cooling towers as well. Some power plants are already operating at full capacity during peak hours, and the additional power from VLTHE increases peak output without additional fuel. All power plants are under constant pressure to reduce greenhouse gas emissions. Every ton of coal that is burned creates over 2 tons of greenhouse gases. Adding VLTHE to existing power plants reduces emissions and fuel consumption per kilowatt, potentially by as much as 15%.
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Commercial buildings: |
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Electricity from Low Temperature Waste Heat 90ºF/32ºC and up |
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Save $2000/year per ton of AC/R |
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How low temperature waste heat compares to other alternative energy sources |
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How VLTHE technology works |
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New JOBS for the U.S.: how Alternative Energy really can revitalize the U.S. economy |
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© 2011 American Thermal Power LLC |
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Low Temperature Heat Energy wasted in the U.S. today and every day:
20,000,000 MWH
= 1.77 times the total electricity we use per day, = Power from 8 million tons of coal (88,000 rail cars)/day = The energy in 11,000,000 barrels of oil per day (more than we import)
Converting just 10% of this to electricity saves: 1.6 Million Tons of Greenhouse Gas Emissions per day = emissions from 100,000,000 cars $200,000,000 per day = 1 million jobs that don’t exist now
This energy is easy to capture from commercial air conditioning/refrigeration systems and from power plants. Now we don’t need to waste it any more.
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