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Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 • USA Technical Reference: Capstone MicroTurbine Fuel Requirements Gaseous Fuel Composition and Properties Requirements The Gaseous Fuels being evaluated must be in accordance with the specifications and parameters listed in Table 9, in addition to the referenced Notes. Table 9. Gaseous Fuel Composition and Properties Requirements Component or Property Units Max Min Test Method Notes Combustible Gases Condensable Combustible Gases Acetylene Nitrogen Carbon Dioxide Carbon Monoxide Hydrogen Oxygen Water Vapor Specific Gravity @ 59 °F, 14.7 psia Wobbe Index @ 15 °C (59 °F) Calorific Value Average (HHV) Calorific Value Variation % Volume % Mass instantaneous % Volume % Volume % Volume % Volume % Volume % Volume % Volume Relative to air MJ/m3 (Btu/ft3) MJ/m3 (Btu/ft3) Percent of average 100 0 5 50 50 5 5 10 5 1.54 76.05 (2,041) 94.41 (2,534) (+/- 10) 30 0 0 0 0 0 0 0 0 0.55 12.45 (334) 13.04 (350) 0 ----- ----- ----- ASTM D1945 ASTM D1945 ASTM D1945 ASTM D1945 ASTM D1945 ----- ASTM D1070 ----- ASTM D4891 ASTM D4891 ----- (Note 1) ----- ----- ----- ----- ----- ----- (Note 2) (Note 3) HHV Based (Note 3) (Note 3) ----- Note 1: At minimum gas temperature -10 °C (18 °F) above the dew point (as system cannot operate below the temperature at which gas can condense), and maximum supply pressure as noted in Table 7. If the fuel and/or the fuel system must be heated to a temperature above the ambient temperature in order to meet this requirement, then precautions must be taken to prevent the condensation of the fuel when the MicroTurbine is shutdown so that no combustible liquid may enter the MicroTurbine control system when started or run. Note 2: Any water vapor content must be at a minimum of 10 °C (18 °F) above its dew point anywhere within the fuel connections and the system between the MicroTurbine fuel inlet and the MicroTurbine fuel manifold block. If the fuel or fuel system must be heated to a temperature above the ambient temperature in order to meet this requirement, or to prevent condensed water from freezing, precautions must be taken to prevent the condensation of the water vapor or freezing, when the MicroTurbine is shutdown so that freezing of control valves does not occur and no liquid may enter the MicroTurbine control system when started or run. Note 3: With appropriate MicroTurbine model selection and control system setting for the particular fuel that falls within this range. The supply pressures are tabulated in Table 7 and in Table 8. 410002-001 Rev A (DRAFT) Page 14 of 31 This information is proprietary to Capstone Turbine Corporation. Neither this document nor the information contained herein shall be copied, disclosed to others, or used for any purposes other than the specific purpose for which this document was delivered. Capstone reserves the right to change or modify without notice, the design, the equipment ratings, and/or the contents of this document without incurring any obligation either with respect to equipment previously sold or in the process of construction.PDF Image | Technical Reference Capstone MicroTurbine Fuel Requirements
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