Abstract
This paper provides a supercritical pressure cold energy utilization system of the cryogenic fluid. As a specific example, there is a supercritical pressure cold energy power generation system according to the liquefied gas. The system is named LSG. LSG is a method that uses the cold exergy of the liquefied gas as the pressure exergy than the temperature exergy. LSG is a two-fluid cycle that equipped with a booster pump to boost up a supercritical pressure in the liquid state, and the primary power generator of Rankine cycle system, and the secondary power generator of Direct expansion system. The ability of LSG, in case the gas supply pressure is low, so the maximum power generation case, power generation per unit is 433kJ/kg (120kWh/t) in the actual correction value. As a result of LSG, it is possible to recover up to 42-46% of the cold exergy as electric power.
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