Capstone Turbine Corporation
Model C65 Hybrid UPS User’s Manual
400027 Rev A (July 2010)
Page
15 of 66
Capstone reserves the right to change or modify, without notice, the design, specifications, and/or contents of this document without
incurring any obligation either with respect to equipment previously sold or in the process of construction.
The major system components are a Capstone model C65 high-pressure natural gas
MicroTurbine, an exhaust heat recovery unit, and an exhaust diverter to allow full or partial
recovery of exhaust energy. The system includes microprocessor control with input/output
functions to allow application in a wide variety of heat recovery uses. The system allows a
user to realize high total system efficiency with respect to incoming fuel energy, providing
economical operation and operational flexibility.
Output Measurements
The measurements presented in this document are in metric units (with U.S. standard
units in parentheses). Refer to the sections below for more data.
ISO Conditions
Combustion turbine powered devices (including the Capstone MicroTurbine) are typically
rated at 15 °C (59 °F) at sea level, or 1 atmosphere (1 atm) which is 760 mm Hg (14.696
psia) and identified as International Standardization Organization (ISO) conditions. For a
complete definition of ISO testing conditions, refer to ISO 3977-2.
Pressure
Pressure figures assume gauge pressure, or 1 standard atmosphere (1 atm) 760 mm Hg
(14.696 psia) less than absolute pressure, unless otherwise indicated.
Volume
Fuel gas and exhaust gas volumetric measurements are listed in normalized cubic meters
(Nm
3
) and standard cubic feet (scf). These volumes are defined at 1 atm (760 mm Hg,
14.696 psia) and 15.6 °C (60 °F).
Heating Values
Heat contents and heat rates will be found in either Lower Heating Value (LHV) (dry) or
Higher Heating Value (HHV), depending upon the application. Capstone calculates
heating values at 1 atmosphere (atm) and 15.6 °C (60 °F), according to ASTM D3588.
MicroTurbine Performance
The MicroTurbine electrical output capability is reduced when operating in higher ambient
temperatures or elevations, and by intake or exhaust restrictions. Refer to the C65
Performance Technical Reference (410048), or contact your Capstone Authorized Service
Provider for data on performance specifications.
Utility Input Connection
The Hybrid UPS MicroTurbine electrical connection to a utility source is 3-phase, 400 to
480 VAC and 45 to 65 Hz (both voltage and frequency are determined by the electric utility
grid). Allowable connection is 4-wire Wye. An isolation transformer may be required,
depending on the system configuration.
