Design consideration of supercritical CO2 power cycle integral experiment loop

Yoonhan Ahn, Jekyoung Lee, Seong Gu Kim, Jeong Ik Lee, Jae Eun Cha and Si-Woo Lee

Energy, 2015, vol. 86, issue C, 115-127

Abstract: Supercritical-CO2 Brayton cycle has been recently gaining a lot of attention for the mild temperature (450–650 °C) heat source application due to its high efficiency and compact footprint as the system layout of S–CO2 cycle is simple and small turbomachinery and compact micro-channel heat exchangers are utilized. As CO2 properties behave more like an incompressible fluid near the critical point (30.98 °C, 7.38 MPa), the control of compressor operating condition and stability is the key technology that influences the cycle efficiency. Based on the previous works on the S–CO2 test facilities from various research institutions, a Korean research team designed the SCIEL (Supercritical CO2 Integral Experiment Loop) to achieve higher efficiency with higher pressure ratio with S–CO2 power cycle compared to other pre-existing facilities. This paper will describe the underlying design principles of the integral experiment facility and the current status of SCIEL which is being constructed in KAERI (Korea Atomic Energy Research Institute).

Keywords: Supercritical carbon dioxide cycle; Advanced power system; Integral test loop; Turbomachinery; Heat exchanger (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (36)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:86:y:2015:i:c:p:115-127

DOI: 10.1016/j.energy.2015.03.066

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