The DISPATCHES Hydrogen Turbine Model
The Hydrogen Turbine Model has 13 degrees of freedom.
The Hydrogen Turbine Model consists of a Compressor --> Stoichiometric Reactor --> Turbine. The Hydrogen is assumed to be compressed alongside the air that is flowing into the compressor rather than having a separate fuel injection system.
The Hydrogen Turbine Model uses the follow variables:
| Variable | Name | Notes |
|---|---|---|
| mflow | compressor.inlet.flow_mol[0] | Total Molar flow rate into the inlet of the Compressor |
| Tinlet | compressor.inlet.temperature[0] | Inlet Temperature of stream into the Compressor of the hydrogen turbine |
| Pinlet | compressor.inlet.pressure[0] | Inlet Pressure into the Compressor |
| wOxygen | compressor.inlet.mole_frac_comp[0, "oxygen"] | Mole fraction of oxygen entering the Compressor Inlet |
| wArgon | compressor.inlet.mole_frac_comp[0, "argon"] | Mole fraction of argon entering the Compressor Inlet |
| wNitrogen | compressor.inlet.mole_frac_comp[0, "nitrogen"] | Mole fraction of nitrogen entering the Compressor Inlet |
| wwater | compressor.inlet.mole_frac_comp[0, "water"] | Mole fraction of water entering the Compressor Inlet |
| wHydrogen | compressor.inlet.mole_frac_comp[0, "hydrogen"] | Mole fraction of hydrogen entering the Compressor Inlet |
| dPcomp | compressor.deltaP | Pressure change across the compressor |
| ηcomp | compressor.efficiency_isentropic | Compressor isentropic efficiency Value |
| ϵRX | stoic_reactor.conversion | Conversion Rate inside the stoichiometric reactor. Value between [0,1] |
| dPturb | turbine.deltaP | Pressure change across the turbine |
| ηturb | turbine.efficiency_isentropic | Turbine isentropic efficiency Value |
Hydrogen Turbines are a cutting edge technology that looks to modify the years of work on natural gas turbines to burn hydrogen as opposed to natural gas. As such, baseline costs of natural gas turbines with a modifier placed on top of them is considered.
| Natural Gas Capital Costs | Value |
|---|---|
| Capital Costs: | $947/kW - $1061/kW [1] |
| Fixed OPEX: | $7-16.30/kw-yr [2] |
| Variable OPEX: | $4.25/MWh - $4.29/MWh [1] |
| Scaling Factor: | 0.72 - 0.78 [0.72 if the entire plant is scaled, 0.78 if only the turbine is scaled] [1] |
References [1]. Rabiti, C., Epiney, A., Talbot, P., Kim, J. S., Bragg-Sitton, S., Alfonsi, A., Yigitoglu, A., Greenwood, S., Cetiner, S. M., Ganda, F., and Maronati, G. Status Report on Modelling and Simulation Capabilities for Nuclear-Renewable Hybrid Energy Systems. United States: N. p., 2017. Web. doi:10.2172/1408526. [2]. Capital Cost and Performance Charasteristic Estimates for Utility Scale Electric Power Generating Technologies. U.S. Energy Information Administration (EIA). February 2020.
dispatches.unit_models.hydrogen_turbine_unit
HydrogenTurbine