Experimental evaluation of 100 kW grade micro humid air turbine cycles converted from a microturbine

Zhen Xu, Yuan Lu, Bo Wang, Lifeng Zhao, Changnian Chen and Yunhan Xiao

Energy, 2019, vol. 175, issue C, 687-693

Abstract: Microturbines have been developed as a candidate for distributed energy and combined heat and power. A 100 kW grade test facility of micro Humid Air Turbine (mHAT) cycle was converted from a commercial recuperated microturbine. The thermodynamic and emission performances of three mHAT concepts were experimentally evaluated at nominal rated output power. The impacts of the aftercooler and part-flow humidification strategy were also discussed. Comparing to the original recuperated microturbine, the specific output power and the electrical efficiency of mHAT increase 23% and 18.9% respectively. Introducing the aftercooler into the mHAT (mHAT+) can improve the specific output power to the maximum value of 31.6%. The part-flow humidification strategy can further improve the electrical efficiency to the maximal value of 22.2% at the split ratio is equal to 0.48 in the experiment range. The minimal NOx emission in tested five cycles decreases 36.8%, but corresponding combustion efficiency shows a 2.2% reduction.

Keywords: Humid air turbine; Microturbine; Thermodynamic performance; Emission performance (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:175:y:2019:i:c:p:687-693

DOI: 10.1016/j.energy.2019.03.036

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