https://server.s4e2.com/crc/tcnpp/chapters/chapter4/index.html💧 Chapter 4: Improvement of Steam Power Cycles Boosting the Performance of Steam Cycles How to enhance efficiency in nuclear steam cycles? Key Strategies: Reheat: Improves steam quality at expansion end (+several % efficiency). Regeneration: Feedwater heaters reduce economizer irreversibilities (e.g., AGR with 8 extractions). Supercritical cycles (221.2 bar): Up to 47-48% efficiency (e.g., Canadian SCWR). Advanced Technologies: Sodium-cooled fast reactors (SFR). Chinese HTR-PM (helium, 750°C). Case Study: Hartlepool AGR: Progressive modeling with Thermoptim (cascaded drains, CO₂ heat exchangers). Result: Concrete efficiency gains, validated by exergy balances.Hugoen-usThu, 22 Jan 2026 14:36:36 +0100https://server.s4e2.com/crc/tcnpp/chapters/chapter4/_toc/index.htmlThu, 22 Jan 2026 14:35:10 +0100https://server.s4e2.com/crc/tcnpp/chapters/chapter4/_toc/index.htmlTable of Contents — Volume 2 Advanced Modeling of Thermodynamic Cycles of Nuclear Power Plants 4. Improvement of Steam Power Cycles 4.1 High-Temperature Steam Power Cycles 4.1.1 Basic Hirn or Rankine Cycle with Superheat 4.1.2 Exergy Balance 4.1.3 Thermodynamic Limits of the Simple Hirn Cycle 4.1.4 Cycle with Reheat 4.1.5 Cycle with Extraction 4.1.6 Technical Constraints in AGRs 4.1.7 SFR, FNR, HTR-PM, MSR, FMSR Cycles 4.2 Supercritical Cycles 4.3 Conclusion 4.4 Referenceshttps://server.s4e2.com/crc/tcnpp/chapters/chapter4/_resources/index.htmlThu, 22 Jan 2026 14:36:36 +0100https://server.s4e2.com/crc/tcnpp/chapters/chapter4/_resources/index.htmlResources 📘 Chapter 4: Advanced Steam Cycles Complementary Resources, Guided Explorations, and Simulation Tools ⚠️ Important Notes About These Resources The resources on this page complement the content of Chapter 4 in Advanced Modeling of Thermodynamic Cycles of Nuclear Power Plants. Models and examples are accessible online but require the Thermoptim software for full interactivity. Download Thermoptim here to access the complete features. Some resources are historical examples from the Thermoptim portal, while others are updated models developed specifically for the book. They should not have any consequences on the understanding of the presented concepts. 📌 4.1.4 Cycle with Reheat Key Concepts Covered: Reheat steam cycles and their thermodynamic advantages. Extraction steam cycles for feedwater heating. Exergy balance and productive structure of steam cycles. Complementary Resources: 🔄 Guided Explorations Introduction to Reheat Steam Cycles — Serves as an introduction to reheat steam cycles (even if the boiler is not nuclear). GE: VapeurResurch7cci1_en →