Humid Air Turbine Cycle (HAT)

Calculate Humid Air Turbine (HAT) advanced evaporative cycle performance: net electrical power (MW), thermal efficiency (>52%), saturator water evaporation, and intercooled compression.

⚡ Fortran 90 Engine Double Precision (IEEE 754) ✓ ISO / ASME Validated
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👁️ Consultations 42
⚡ Calculs faits 36
💾 Téléchargements 371 📦 Code Fortran 11.4 KB
📅 Mise en service Jun 2026
⏱️ Latence < 1 ms
⚡ Outils & Rapports :
💾 Télécharger Fortran 90

⚡ Humid Air Turbine (HAT) Flow Circuit & Packed Saturator Column

Real-time visual simulation: Multi-stage intercooled air compression, countercurrent hot-water saturator, and high-expansion humid air turbine

📝 Configuration & Presets

⚡ Utility Base-Load (100 MW) 🏭 Industrial Cogeneration HAT 🔥 Integrated Gasification IGHAT 🚢 Offshore Marine Evaporative
⚡ Gas Turbine Aerothermodynamics
💧 Saturator Column & Evaporated Water
Typical: 15% to 25%
⚙️ Turbomachinery Efficiencies
Humid Air Turbine (HAT) Formulation:
• Direct-contact evaporative saturator column with low-temperature waste heat recovery.
• Humid expansion work: Ẇturb ∝ (ṁair + ṁwater) · cp,humid · TIT · [1 − (1/rp)(γ−1)/γ]
• Net Electrical Efficiency: ηHAT > 50% without a steam turbine.
• Intercooled compression reduces parasitic compressor power.

📊 HAT Performance Results

Configure inputs and click Compute to view results.

📘 Calculation Methodology & HAT Cycle Standards

Direct-Contact Packed Saturator

The countercurrent saturator evaporates hot water directly into compressed air across a temperature glide, recovering low-grade heat down to near-ambient temperatures.

Superior High Specific Power

The massive influx of evaporated water vapor ($15 - 30\%$) superheats in the recuperator, yielding specific power outputs up to $80\%$ higher than standard Brayton gas turbines.

Key Engineering Assumptions

  • Intercooled multi-stage centrifugal/axial compression.
  • Countercurrent packed saturator with high mass-transfer packing.
  • Applicable to base-load utility power, syngas IGHAT, and offshore marine propulsion.