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저등급 열원 활용을 위한 유기플래시 사이클(OFC)과 칼리나 사이클의 성능 특성에 관한 연구

A Study on the Performance Characteristics of the Organic Flash Cycle (OFC) and Kalina Cycle for Low-Grade Heat Sources

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초록

The organic flash cycle (OFC) has beenwas recently proposed as a vapor power cycle that could potentially improve the conversion efficiency for of high and intermediate temperature sources in the form of sensible energy. In this paper, the thermodynamic performance of OFC was theoretically investigated theoretically and compared to with the Kalina cycle system (KCS) for the recovery of low-grade heat sources. A tThermodynamic performance assessment was carried out for the OFC and KCS for the recovery of low-grade heat sources. The eEffects of the working fluid, turbine inlet pressure, and mass fraction of ammonia on the system performance including power production and thermal efficiency were systematically investigated. The rResults showed that for a low-temperature heat source, the OFC could did not show higher thermal efficiency than KCS but showed higher power production than KCS.

Abstract

The organic flash cycle (OFC) has beenwas recently proposed as a vapor power cycle that could potentially improve the conversion efficiency for of high and intermediate temperature sources in the form of sensible energy. In this paper, the thermodynamic performance of OFC was theoretically investigated theoretically and compared to with the Kalina cycle system (KCS) for the recovery of low-grade heat sources. A tThermodynamic performance assessment was carried out for the OFC and KCS for the recovery of low-grade heat sources. The eEffects of the working fluid, turbine inlet pressure, and mass fraction of ammonia on the system performance including power production and thermal efficiency were systematically investigated. The rResults showed that for a low-temperature heat source, the OFC could did not show higher thermal efficiency than KCS but showed higher power production than KCS.

참고문헌 (14)

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