neqsim-power-generation

Power Generation with NeqSim

Guide for modeling power generation equipment — gas turbines, steam turbines, heat recovery steam generators (HRSG), and combined cycle systems.

When to Use This Skill

• Gas turbine modeling (power output, fuel consumption, exhaust conditions)
• Steam turbine expansion and power generation
• Heat recovery steam generator (HRSG) design
• Combined cycle system integration (GT + HRSG + ST)
• Waste heat recovery from process streams
• Fuel gas consumption and CO2 emissions from drivers
• Thermal efficiency calculations
• Heat integration / pinch analysis for process plants

Key NeqSim Classes

Vendor-performance GT driver — matched fuel & power (PREFERRED for drivers)

For a real mechanical-drive or generator gas turbine (e.g. a GE LM2500 driving a compressor or an AC generator), the built-in simple-cycle GasTurbine is a rough model and is unreliable for net power / efficiency. Use GasTurbineVendorPerformance instead: it takes a load demand and returns the fuel rate and CO2 matched to that load using the fuel gas's rigorous ISO 6976 LCV and stoichiometric carbon.

GasTurbineVendorPerformance gt = new GasTurbineVendorPerformance("GT driver", fuelStream);
gt.setVendorRating(22.4, "MW", 0.37);        // ISO base power, base LHV efficiency
gt.setAmbientDerating(15.0, 0.007);          // design ambient C, power lapse /degC
gt.setSiteAmbientTemperature(15.0);
gt.setPartLoadHeatRateCoefficient(0.15);     // heat-rate rise at part load
gt.setLoadDemand(compressor.getPower("kW"), "kW");  // <-- the process power need
gt.run(UUID.randomUUID());
double fuel = gt.getFuelFlowRate("kg/hr");
double co2  = gt.getCO2EmissionRate("tonne/day");
double loadFrac = gt.getLoadFraction();      // vs site-rated MAX (bottleneck basis)
double spareKW  = gt.getSiteRatedPower("kW") - compressor.getPower("kW");