DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Min Seok | ko |
dc.contributor.author | Jung, Hwa-Young | ko |
dc.contributor.author | Ahn, Yoonhan | ko |
dc.contributor.author | Lee, Jekyoung | ko |
dc.contributor.author | Lee, Jeong-Ik | ko |
dc.date.accessioned | 2017-01-03T05:32:34Z | - |
dc.date.available | 2017-01-03T05:32:34Z | - |
dc.date.created | 2016-11-24 | - |
dc.date.issued | 2016-08-10 | - |
dc.identifier.citation | The 9th National Congress of Fluids Engineering | - |
dc.identifier.uri | http://hdl.handle.net/10203/215204 | - |
dc.description.abstract | In order to eliminate sodium-water reaction (SWR) when the current conventional steam Rankine cycle is utilized with Sodium-cooled Fast Reactor (SFR) as a power conversion system, a concept of coupling the Supercritical CO2 (S-CO2) cycle with SFR has been proposed. From the many past studies of S-CO2 cycle, it was identified that the S-CO2 cycle technology has a big potential to outperform the existing steam cycle and eventually replacing them. The major reasons are relatively high efficiency under moderate turbine inlet temperature (450~750ºC), simple layout, and physically compact power plant size due to small turbo-machinery and heat exchangers which reduces the total footprint of the power plant significantly. It is known that for a closed system controlling the inventory is important for stable operation and achieving high efficiency. Since the S-CO2 power cycle is a highly pressurized system, certain amount of leakage flow is inevitable in the rotating turbo-machinery via seals. The parasitic loss caused by the leakage flow should be minimized since this greatly influences the cycle efficiency. Thus, a simple model for estimating the critical flow in a turbo-machinery seal is essential to predict the leakage flow rate and calculate the required total mass of working fluid in a S-CO2 power system to minimize the parasitic loss. This paper presents both numerical and experimental investigations on S-CO2 critical flow while special attention is given to the turbo-machinery seal design. A simple computational model is described and experiments were conducted to validate it. Various conditions have been tested to study the flow characteristic and provide validation data for the model. | - |
dc.language | Korean | - |
dc.publisher | 한국가시화정보학회 | - |
dc.title | Experimental and Numerical Investigations on S-CO2 Critical Flow with Implications in Turbomachinery Seal Design | - |
dc.type | Conference | - |
dc.type.rims | CONF | - |
dc.citation.publicationname | The 9th National Congress of Fluids Engineering | - |
dc.identifier.conferencecountry | KO | - |
dc.identifier.conferencelocation | EXCO, Daegu | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Lee, Jeong-Ik | - |
dc.contributor.nonIdAuthor | Kim, Min Seok | - |
dc.contributor.nonIdAuthor | Jung, Hwa-Young | - |
dc.contributor.nonIdAuthor | Ahn, Yoonhan | - |
dc.contributor.nonIdAuthor | Lee, Jekyoung | - |
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