公开(公告)号：US20240401504A1

公开(公告)日：2024-12-05

申请号：US18698658

申请日：2022-09-23

Applicant: SK GAS CO., LTD.

Inventor： Jungho CHO ,  Ung Gi HONG ,  Mi Young LEE

IPC: F01K27/00 ,  F01K25/10

Abstract: LNG cold power generator includes: a working fluid including carbon dioxide and ethane; a pump; an evaporator; a turbine; and a condenser. A molar ratio of the carbon dioxide and the ethane is 85˜95:15:0.5. The working fluid is used in a closed Rankine cycle. A supply pressure of supplied LNG is adjusted to a pressure at which it becomes a saturated liquid. A temperature at an outlet of the condenser is adjusted to a saturated vapor temperature of LNG. A pressure at an outlet of the pump is adjusted to a critical pressure of a mixed working fluid. The cycle includes two turbines and a heater provided therebetween. The heater heats the working fluid to prevent condensation thereof.