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Figure 4 High Efficiency Natural Gas Compressor (Ex) for a Capstone 30 kWe microturbine Testing of the 30 kWe microturbine with corresponding natural gas vane compressor led to a replacement of the original frequency converter due to a very tight selection based on electrical capacity needed. It was tested at various capacities during 2,000 running hours. 4. DEMONSTRATION PROJECTS Currently, a demonstration project of a Capstone microturbine in combination with a spray dryer is running. Another demo of a Capstone microturbine as a CHP-unit in a boiler house is planned to run. In both demonstrations commercial versions of equipment are used, based on the developed peripherals described in this paper. Capstone 60 kWe microturbine in combination with a spray dryer The flue gases of the microturbine are led into the burner of a spray dryer. The microturbine is equipped with the Gas Safeguard Module and the High Efficient Natural Gas Compressor (Ex). The demonstration started at the end of January, 2004. During the period January – September 2004, several start-up malfunctionings occurred concerning: The microturbine: - Cooling fan failure: has been replaced - SPV-valve failure: has been replaced - Ignitor (due to normal wear): has been replaced The Gas Safeguard Module: - Out of range of combustion air flow indicator and cooling air flow indicator: range has been adjusted - Combustion air flow indicator failure: has been replaced The High Efficient Natural Gas Compressor (Ex): - Frequency converter failure: has been replaced - Pressure indicator converter failure: has been replaced - Electrical relay failure: has been replaced From October 2004 to 9 December 2005 no serious malfunctioning occurred. In this period, 963 starts and 6,798 running hours were made. From the beginning of this project on 29 January 2004 to 9 December 2005, a period of 680 3 days,1,317startsoccurredand8,149runninghoursweremade.Atotalconsumptionof198,135m of Groningen-gas was realised and 460,559 kWh of net electricity was produced. Some characteristics (based on the figures above) are: - Mean amount of starts: 1.9 starts/day - Mean amount of running hours: 12 hrs/day and 6.2 hrs/run 3 - Mean natural gas consumption (Groningen-gas): 24.3 m /hr - Mean net electricity production: 56.5 kWh/hr - Mean net electrical efficiency: 26.5%PDF Image | DEMONSTRATION OF CAPSTONE MICROTURBINES INCLUDING HIGH EFFICIENCY HEAT EXCHANGER, GAS SAFEGUARD MODULE AND NATURAL GAS COMPRESSOR, DEVELOPED BY GASUNIE ENGINEERING & TECHNOLOGY
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DEMONSTRATION OF CAPSTONE MICROTURBINES INCLUDING HIGH EFFICIENCY HEAT EXCHANGER, GAS SAFEGUARD MODULE AND NATURAL GAS COMPRESSOR, DEVELOPED BY GASUNIE ENGINEERING & TECHNOLOGYOriginal File Name Searched:
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