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proposed method for greatly improved industrial energy efficiency

“ But now Daniel Stinger, a turbine engineer, and Farouk Mian, a petroleum engineer, have developed a surprisingly simple way to harness almost all this waste heat. They calculate that a second turbine, driven by the waste heat from the first, would capture almost all the remaining energy. The first turbine's waste heat would vaporise and pressurise still more propane to drive the second (see diagram)."
—
“ [...] to make use of heat sources below 450 °C - which includes most industrial waste heat. The company's calculations suggest that power stations adopting dual turbines should be able to boost their efficiency from 35 per cent to potentially as much as 60 per cent.”

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