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The New, Promising Business Of Capturing Clean Industrial Waste Heat
Waste Heat Recovery Power Genreation (WHRPG)
One of the most abundant and overlooked resources of industrial manufacturing processes is excess heat that is dissipated as it “seeps” into the environment. Industrial cogeneration and municipal solid waste facilities and industrial processes such as oil refining, steelmaking and glassmaking are all great sources of waste heat. Other major heat sources include machines and electrical generators.
Industrial Heat Recovery Systems
If these sources of heat can be harnessed they could reduce the need for fossil fuels and in turn reduce greenhouse gas emissions.
A company called Alphabet Energy believes it can harness waste heat from power plants, industrial furnaces and even cars and thereby provide inexpensive electricity to the US grid on a large scale, while reducing carbon emissions by 500 million tons annually.
And according to Alberta Canada’s “Heartland Energy Mapping Study”, waste heat from Alberta’s industrial heartland may be enough to feed district heating systems, reducing or even eliminating the need for natural gas in surrounding communities. Similar tests are being conducted around the world.
Waste Heat Recovery (Image Courtesy www.victoryenergy.com)
Using Low Temperature Waste Heat
Waste heat of just 140° (60°C), using current technology, has an efficiency of about 6% when being converted to electricity. The technology can also harness heat from solar energy, be used to cool computers, be extracted from radar facilities, hot water generating plants and more. Waste heat can also be captured from refrigerators and combustion engines.
Scientists are also looking at relatively small sources of waste heat, such microchips and other electronic components.Thermoelectric materials are currently under development and some of the more effective materials convert heat into electricity very efficiently and could help with both small and large applications.
Technologies for thermal energy storage of waste heat for both short and long-term retention are also under development.
Other Breakthroughs
Engineers at Oregon State University have developed technology to use waste heat to run a cooling system and are using this technology to improve the energy efficiency of diesel engines.
At a coal power plant in Datteln, Germany, engineers are trans forming chemical energy into 36% to 48% electricity and the remaining 52% to 64% into waste heat.
Tags: waste heat recovery system
This entry was posted on June 13th, 2014 and is filed under Uncategorized. Both comments and pings are currently closed.
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