超临界二氧化碳
超临界流体
二氧化碳
布莱顿循环
环境科学
工艺工程
材料科学
联合循环
核工程
作者
Bongsu Choi,Junhyun Cho,Hyungki Shin,Jongjae Cho,Chulwoo Roh,Beomjoon Lee,Gilbong Lee,Ho-Sang Ra,Young-Jin Baik
出处
期刊:Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy
日期:2019-06-17
被引量:3
摘要
Abstract The supercritical carbon dioxide (S-CO2) power cycle has been a topic of interest because it exhibits a high efficiency and compact size and is compatible with any heat source. Since 2013, the Korea Institute of Energy Research (KIER) has developed three S-CO2 power cycle experimental test loops for distributed power source applications. Based on this experience, a hundreds of kWe-class dual Brayton test loop with a maximum temperature of 500 °C has been designed and partially fabricated. This cycle consists of two turbines, one compressor, two recuperators, and a flued-gas heater. First, a relatively low-temperature turbine with an inlet temperature of 392 °C was designed and manufactured as an axial impulsetype turbo-generator because of the cost and development time required for construction of a full-cycle test loop. As a preliminary step, the turbo-generator was successfully tested in 2017. Next, it was continuously operated for 4.2 h in 2018. In addition, the following components were designed and manufactured: a centrifugal compressor with a dry gas seal; oil-lubricated tilting-pad bearings; a flued-gas heater, which consists of a burner and a shell-and-tube heat exchanger; and two printed circuit heat exchanger type recuperators. The full cycle is expected to be operational in November 2019.
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