Analyses of a high pressure ratio intercooled direct Brayton helium gas turbine cycle for Generation IV reactor power plants

Simple item page
dc.contributor.authorGad-Briggs, Arnold
dc.contributor.authorPilidis, Pericles
dc.contributor.authorNikolaidis, Theoklis
dc.date.accessioned2017-01-11T11:51:12Z
dc.date.available2017-01-11T11:51:12Z
dc.date.issued2016-12-20
dc.description.abstractThe intercooled cycle (IC) as an alternative to the simple cycle recuperated (SCR) and intercooled cycle recuperated (ICR) is yet to be fully analyzed for the purpose of assessing its viability for utilization within Generation IV nuclear power plants (NPPs). Although the benefits are not explicitly obvious, it offers the advantage of a very high overall pressure ratio (OPR) in the absence of a recuperator. Thus, the main objective of this study is to analyze various pressure ratio configurations, the effects of varying pressure ratio including sensitivity analyses of component efficiencies, ambient temperature, component losses and pressure losses on cycle efficiency, and specific work of the IC, including comparison with the SCR and ICR. Results of comparison between the IC and the SCR and ICR derived that the cycle efficiencies are greater than the IC by ∼4%∼4% (SCR) and ∼6%∼6% (ICR), respectively. However, the pressure losses for IC are lower when compared with the SCR and ICR. Nonetheless, heat from the turbine exit temperature of the IC can be used in a processing plant including the possibility of higher turbine entry temperatures (TETs) to significantly increase the cycle efficiency in a bid to justify the business case. The analyses intend to bring to attention an alternative to current cycle configurations for the gas-cooled fast reactors (GFRs) and very-high-temperature reactors (VHTRs), where helium is the coolant. The findings are summarized by evaluating the chosen pressure ratio configurations against critical parameters and detailed comparison with the SCR and ICR.en_UK
dc.identifier.citationA. Gad-Briggs, P. Pilidis and T. Nikolaidis, Analyses of a high pressure ratio intercooled direct Brayton helium gas turbine cycle for Generation IV reactor power plants, Journal of Nuclear Engineering and Radiation Science, Volume 3, Issue 1, 2016, 011021en_UK
dc.identifier.issn2332-8983
dc.identifier.urihttp://dx.doi.org/10.1115/1.4034479
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/11251
dc.language.isoenen_UK
dc.publisherASMEen_UK
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectGen IVen_UK
dc.subjectefficiencyen_UK
dc.subjectspecific worken_UK
dc.subjectcycleen_UK
dc.subjectnuclear power plantsen_UK
dc.subjectperformanceen_UK
dc.subjectspliten_UK
dc.subjectintercooleden_UK
dc.titleAnalyses of a high pressure ratio intercooled direct Brayton helium gas turbine cycle for Generation IV reactor power plantsen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Analysis_of_high_pressure_ratio_intercooled_direct_brayton_helium_gas_turbine_cycle-2016.pdf
Size:
2.99 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.79 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SATM)