๐ Supercritical CO2 Recompression Brayton
Size closed-loop supercritical CO2 (sCO2) recompression Brayton power loops: thermal efficiency (>45%), net electrical power (MW), split recompression ratio, and dual recuperator duties.
โก Fortran 90 Engine
Double Precision (IEEE 754)
โ ISO / ASME Validated
Thermodynamics
๐ Solver Telemetry
โ ACTIVE
๐๏ธ Views
38
โก Solves
33
๐พ Downloads
452
๐ฆ Fortran Code
11.4 KB
๐
Released
Jun 2026
โฑ๏ธ Latency
< 1 ms
โ๏ธ Closed-Loop sCO2 Recompression Power Cycle & Dual Recuperators
Real-time visual simulation: Dense-phase main compressor + bypass recompressor with LTR/HTR heat recovery๐ Configuration & Presets
โ๏ธ Gen-IV Nuclear (650ยฐC)
โ๏ธ Solar Tower CSP (700ยฐC)
๐ฅ Allam Oxy-Fuel (1100ยฐC)
๐ญ SMR Compact sCO2 (550ยฐC)
sCO2 Recompression Brayton Formulation:
โข Net Cycle Work: wnet = wt โ (1โฮณ)ยทwMC โ ฮณยทwRC [kJ/kg]
โข Thermal Efficiency: ฮทth = wnet / qheater [%]
โข Dense-phase compression near critical point (ฯ โ 600 kg/mยณ) drastically cuts pump work.
โข Dual recuperators (LTR & HTR) eliminate pinch-point heat exchange mismatch.
โข Net Cycle Work: wnet = wt โ (1โฮณ)ยทwMC โ ฮณยทwRC [kJ/kg]
โข Thermal Efficiency: ฮทth = wnet / qheater [%]
โข Dense-phase compression near critical point (ฯ โ 600 kg/mยณ) drastically cuts pump work.
โข Dual recuperators (LTR & HTR) eliminate pinch-point heat exchange mismatch.
๐ sCO2 Cycle Results
Configure inputs and click Compute to view results.
๐ Calculation Methodology & sCO2 Brayton Standards
Near-Critical Compression Advantage
Compressing supercritical $CO_2$ just above its critical point ($31.1^\circ\text{C}, 7.38\,\text{MPa}$) exploits high density ($\sim 600\,\text{kg/m}^3$), reducing compressor power consumption by over $60\%$ compared to ideal gases.
Split-Flow Recompression Architecture
The recompression compressor (RC) takes a fraction $\gamma$ of hot low-pressure fluid directly from the LTR outlet without cooling, perfectly matching the specific heat capacitance rates ($mc_p$) across the recuperator.
Key Engineering Assumptions
- Closed-loop closed Brayton cycle with pure $CO_2$.
- Dual printed-circuit heat exchangers (PCHE) for LTR and HTR.
- Applicable to Gen-IV nuclear reactors, solar tower CSP, and waste heat recovery.