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Design and Economic Evaluation of Thermionic Cogeneration in a Chlorine-Caustic Plant
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The study shows that it is feasible to equip a chlorine-caustic plant with thermionic cogeneration. Thermionic combustors replace the existing burners of the boilers used to raise steam for the evaporators, and are capable of generating approximately 2.6 MW of dc power. This satisfies about 5 percent of the power demand of the chlorine cells. More thermionic power could be generated, and excess steam would be produced which could be sold or used elsewhere in the plant. A typical plant was defined based on a survey of U.S. chlorine plants. This plant produces 470 U.S. tons of chlorine per day, with four cell rooms. Each cell room is one electrical circuit and requires a dc supply of 185 V and 70,000 A. Total dc power consumption is nearly 13 MW. The steam for the evaporators is raised in four boilers with a total installed capacity of 320,000 Ib of steam per hour. The study shows that the estimated cost of thermionic cogeneration installed in the typical chlorine-caustic plant is $1600 per kW.
Miskolezy, G.; Morgan, D.; Turner, R. (1985). Design and Economic Evaluation of Thermionic Cogeneration in a Chlorine-Caustic Plant. Energy Systems Laboratory (http://esl.tamu.edu). Available electronically from