โจ๏ธ Kalina Binary Cycle (NH3-H2O)
Calculate binary ammonia-water Kalina cycle performance: non-azeotropic temperature glide matching, separator distillation, rich-vapor expander, and net electrical power.
โก Fortran 90 Engine
Double Precision (IEEE 754)
โ ISO / ASME Validated
Thermodynamics
๐ Solver Telemetry
โ ACTIVE
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40
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๐ฆ Fortran Code
11.4 KB
๐
Released
Jun 2026
โฑ๏ธ Latency
< 1 ms
โก Kalina Binary (NH3-H2O) Flow Circuit & Variable Boiling Glide
Real-time visual simulation: Distillation separation of rich ammonia vapor and variable-temperature boiling glide๐ Configuration & Presets
๐ Geothermal Brine (KCS-11)
๐ญ Refinery Distillation Waste
๐ Gas Engine Bottoming Loop
๐ OTEC Low-DeltaT Variation
Kalina Binary Cycle Formulation:
โข Variable Boiling Temperature Glide: ฮTglide โ 15 - 30 ยฐC
โข Distillation: Splits into rich vapor (xrich โ 95%) and lean liquid (xlean โ 40%)
โข Net Power Output: Wฬnet = แนvap ยท wturb โ แนbasic ยท wpump [kW]
โข Thermal Efficiency: ฮทth = Wฬnet / Qฬin [%]
โข Variable Boiling Temperature Glide: ฮTglide โ 15 - 30 ยฐC
โข Distillation: Splits into rich vapor (xrich โ 95%) and lean liquid (xlean โ 40%)
โข Net Power Output: Wฬnet = แนvap ยท wturb โ แนbasic ยท wpump [kW]
โข Thermal Efficiency: ฮทth = Wฬnet / Qฬin [%]
๐ Kalina Cycle Results
Configure inputs and click Compute to view results.
๐ Calculation Methodology & Kalina Cycle Standards
Binary Temperature Glide
Because ammonia ($T_b = -33.3^\circ\text{C}$) boils before water ($T_b = 100^\circ\text{C}$), phase change occurs with a variable temperature glide matching the heat source slope, drastically cutting exergy destruction.
Distillation & Absorber Recombination
The high-pressure separator distills rich ammonia vapor for power generation, while lean liquid is recombined in the absorber to allow low condensing pressures at ambient temperature.
Key Engineering Assumptions
- Zeotropic ammonia-water binary mixture ($NH_3 / H_2O$).
- Dry rich vapor expansion without condensation in the turbine.
- Applicable to geothermal power, industrial waste heat recovery, and OTEC.