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Summary of Results from Testing a 30-kW-Microturbine and Combined Heat and Power (CHP) System

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Summary of Results from Testing a 30-kW-Microturbine and Combined Heat and Power (CHP) System ( summary-results-from-testing-30-kw-microturbine-and-combined )

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Federal Technology Alert LIST OF FIGURES Figure 1 Schematic of CHP Integrated Test Facility at ORNL 2 Schematic of direct-fired desiccant dehumidification unit 3 Schematic of indirect-fired desiccant dehumidification unit 4 Startup power output and turbine speed 5 Shutdown power output and turbine speed 6 Power dispatching response: power output and turbine speed 7 Microturbine power output variation for 1 h at 30 kW 8 Efficiency and exhaust temperature versus power output 9 Effect of ambient temperature on power output 10 Effect of ambient temperature on exhaust temperature 11 Experimental setup for baseline testing microturbine 12 Heat recovery by the HRU at a water flow rate of 4.3 m3/h (19 gpm) 13 IES system and microturbine: heat recovery efficiencies 14 Efficiencies of microturbine (MTG) and IES 15 Effect of power output on latent capacity 16 Effect of power output on efficiency 17 Effect of ambient temperature on cooling capacity 18 Effect of ambient temperature on the COP of the absorption chiller 19 Effect of ambient temperature on the efficiency of IES configurations 20 Efficiencies of IES configurations at various dry-/wet-bulb conditions 21 Concentration of CO, NOx, and SO2 (ppmV15) vs microturbine power output 22 Concentration of CO, NOx, and SO2 (mg/m3) vs power output 23 CO concentration vs air inlet temperature at 25- and 30-kW power output settings 23 LIST OF TABLES Table 1 Microturbine performance characteristics at various power settings 2 Capstone 30-kW microturbine with damper fully open 3 Capstone 30-kW microturbine with damper 3/8 open 4 Microturbine performance at constant speed and varying back-pressure 5 Comparison of manufacturer’s test data and laboratory results 6 Latent capacity test results (IES-based operation) 7 Measured performance parameters of the IES with the desiccant dehumidifier Page 10 12 13 13 15 16 21 integrated energy system indirect-fired desiccant dehumidifiers latent capacity latent coefficient of performance lithium-bromide/water microturbine generator Oak Ridge National Laboratory thermally activated technologies ACRONYMS ABSC absorption chiller CHP combined heat and power DER distributed energy resource DFDD direct-fired desiccant dehumidifiers DG distributed generation HHV higher heating value HRU heat recovery unit HVAC heating, ventilating, and air-conditioning IES IFDD LC LCOP LiBr/water MTG ORNL TAT 2 –– FEDERAL ENERGY MANAGEMENT PROGRAM . Page 4 6 6 8 8 9 9 11 11 11 12 14 14 17 18 18 19 19 20 21 22 22

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