T100 mGT converted into mHAT for domestic applications: Economic analysis based on hourly demand

Micro Gas Turbines (mGTs) appear as a promising technology for small-scale (up to 500kW) Combined Heat and Power (CHP) production. However, their rather low electrical efficiency limits their profitability when the heat demand is low. Hot liquid water injection in mGTs—by means of a saturation tower within the micro Humid Air Turbine (mHAT) cycle—allows both improving the flexibility of heat production and the electrical efficiency of mGTs; two qualities that if enhanced would result in an increased economic feasibility of the technology.