PDF Publication Title:
Text from PDF Page: 006
Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 • USA Technical Reference: Gaseous System Technical Information Low Pressure Natural Gas A block diagram of a Model C30 low-pressure natural gas system is shown below (dotted line for pressure transducer indicates this component has been eliminated in later models): FUEL INLET SPV VACUUM SWITCH ELECTRICAL SHUTOFF SOLENOID P P NOTE: Transducer eliminated in later SIP models FUEL MANIFOLD INJECTOR SOLENOIDS SCREEN INLET FILTER RFC HEAT EXCHANGER PILOT INJECTOR LINES 1 1 3 TURBINE 2 2 3 PREMIX INJECTOR LINES LOW PRESSURE FUEL OPTION KIT 507849-2XX Natural gas entering the MicroTurbine is monitored for fuel pressure by a protective vacuum (pressure) switch. If close to vacuum conditions are detected, operation ceases and a 3024 LOW FUEL PRESSURE fault is reported. An inlet screen filter to the electrical shutoff valve restricts larger fuel particulates from clogging the system. If a fault condition exists, the electrical fuel shutoff valve closes to stop fuel flow into the MicroTurbine; otherwise it is commanded open to maintain fuel flow to the MicroTurbine during system operation. The Foil Bearing Rotary Flow Compressor (FB-RFC) compresses the low-pressure fuel supply up to the required fuel system operating pressure. The RFC operates as a gas compressor at low fuel rates and a flow control device at high fuel flow rates. The compressed high-temperature gas from the RFC is pressure monitored and cooled via a heat exchanger before entering the SPV. The SPV and RFC work together to control fuel flow. At low power levels, the RFC operates at a constant speed and the controlling orifice in the SPV meters fuel. At high power levels, the SPV is commanded to a maximum open position, and the flow is metered by varying the speed of the RFC. A vacuum switch is present on the gas inlet to the fuel system to ensure that the fuel pressure is nominally maintained above ambient pressure conditions. This protects the RFC from operating under gas-starved conditions that could damage the foil bearings (i.e., the gas supply is shut off during system operation). The fuel manifold contains electrically-controlled solenoids, which direct injector fuel flow. On earlier low-pressure configurations, exit pressure is monitored through a transducer mounted on the fuel manifold. In later models (SIP configuration), this transducer has been eliminated. Low Pressure natural gas systems may require additional considerations or fuel option kits to deal with inlet fuel pressures above or below nominal pressures. 410037-001 Rev B (January 2006) Page 6 of 15 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 product specifications, 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 Gaseous System Technical Information
PDF Search Title:
Technical Reference Gaseous System Technical InformationOriginal File Name Searched:
410037_Gaseous_Systems_Tech_Ref.pdfDIY PDF Search: Google It | Yahoo | Bing
Capstone Turbine and Microturbine: Capstone microturbines used and new surplus for sale listing More Info
Consulting and Strategy Services: Need help with Capstone Turbine, sizing systems, applications, or renewable energy strategy, we are here to assist More Info
Container Lumber Dry Kiln: Since 1991 developing and innovating dry kilns using standard shipping containers More Info
Supercritical CO2 Lumber Dry Kiln: Compact fast drying in 3 days or less for small amounts of wood and lumber drying More Info
BitCoin Mining: Bitcoin Mining and Cryptocurrency... More Info
Publications: Capstone Turbine publications for microturbine and distributed energy More Info
FileMaker Software for Renewable Energy Developing database software for the renewable energy industry More Info
CO2 Gas to Liquids On-Demand Production Cart Developing a supercritical CO2 to alcohol on-demand production system (via Nafion reverse fuel cell) More Info
Stranded Gas for low cost power Bitcoin Mining Using stranded gas for generators may provide breakthrough low power costs for cryptocurrency miners. More Info
CONTACT TEL: 608-238-6001 Email: greg@globalmicroturbine.com (Standard Web Page)