TY - JOUR
T1 - Optimizing power of a variable-temperature heat reservoir Brayton cycle for space nuclear power plant
AU - Chen, Lingen
AU - Wang, Tan
AU - Ge, Yanlin
AU - Shi, Shuangshuang
AU - Feng, Huijun
PY - 2023
DA - June
DO - 10.14744/seatific.2023.0002
JF - Seatific Journal
JO - Seatific Journal
PB - Yıldız Teknik Üniversitesi
WT - DergiPark
SN - 2792-0771
SP - 9
EP - 18
VL - 3
IS - 1
LA - en
AB - A variable-temperature heat reservoir endoreversible simple closed Brayton cycle (CBC) model for space nuclear power plant is established. Thermal efficiency (TEF) and power output (POW) are derived. When total heat transfer area of radiator panel and two heat exchangers (HEXs) is fixed, the maximum POW ( ) is obtained by optimizing area distributions ( , and ) among two HEXs and radiator panel, the double maximum POW ( ) is obtained by optimizing inlet temperature ( ) of cooling fluid in low temperature heat sink, and the triple maximum POW ( ) is obtained furtherly by optimizing thermal capacity rate matching ( ) between heat reservoir and working fluid. When , and are optimized, increases by 4.33% compare to initial POW ( ); when is furtherly optimized, increases by 6.33% compare to and increases 1.86% compare to ; and increases 11.76%, 7.13% and 5.17% compare to , and , respectively.
KW - space power plant
KW - variable-temperature heat reservoir cycle
KW - endoreversible closed Brayton cycle
KW - power optimization
KW - optimal performance
KW - finite time thermodynamics
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UR - https://doi.org/10.14744/seatific.2023.0002
L1 - https://dergipark.org.tr/tr/download/article-file/3027545
ER -