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논문 기본 정보

자료유형
학술대회자료
저자정보
Senthil kumar Raman (국립안동대학교) Heuy Dong Kim (국립안동대학교)
저널정보
대한기계학회 대한기계학회 춘추학술대회 대한기계학회 2016년도 학술대회
발행연도
2016.12
수록면
212 - 217 (6page)

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The unique characteristics of supercritical carbon dioxide (SCO₂) are reason enough to find its use in various engineering applications. But still usability of SCO₂ is not completely explored due to lack of knowledge about its real gas effects. The present study mainly addresses the real gas effects on supercritical CO₂ flow through a supersonic convergent-divergent nozzle. With series of theoretical equations which are based on one-dimensional gas dynamics theory, computer program has been developed to predict the compressible flow characteristics of supercritical CO₂. With the data obtained from the computer program, properties of supercritical CO₂ near critical point is theoretically analyzed with different EOS. Computational analysis also has been carried out to reasonably predict the SCO₂ flows. The deviation in prediction of properties of SCO₂ by a EOS from other one is addressed. Several types of the equations of state were applied to the compressible Navier-Stokes equations. For effective use of available EOS, an attempt is made by coupling ideal gas EOS and real gas EOS to analyze the real gas effect of SCO₂. These results are compared with the computational results of SCO₂ flow through convergent divergent nozzle with a single real gas EOS. The obtained solutions were used to investigate the generic features of supercritical CO₂ flow, in terms of shock wave location, flow choking, total pressure loss, pressure recovery, etc.

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Abstract
1. Introduction
2. Methodology
3. Results
4. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2017-550-002055658