Technical Specs
Electrical Performance*
|
Characteristic |
Specification |
| Electrical efficiency (±2) | 30% LHV without gas booster 29% LHV with gas booster |
| Nominal heat rate (HHV) | 12,645 Btu/kWh without gas booster 13,080 Btu/kWh with gas booster |
| Nominal heat rate (LHV) | 11,380 Btu/kWh without gas booster 11,770 Btu/kWh with gas booster |
| Electrical power** (±15) | 250 kW nominal @ 59°F without gas booster 242 kW nominal @ 59°F with gas booster 300 kW @ 0°F |
| Voltage | 480 VAC/400 VAC |
| Frequency | 60 Hz/50 Hz |
| Type of service | 3 phase, wye, 4 wire |
| Grid-isolated regulation (steady state) | ±0.50% nominal voltage ±0.50% nominal frequency |
| Transient handling (linear loads) (recovery within 5 seconds) |
±10% nominal voltage max ±5 Hz frequency max |
* at ISO Conditions (59oF [15°C] @ sea level, 60% RH) unless otherwise noted, pipeline natural gas only
** altitude derate of approximately 8.80 kW per 1000 ft (305 m)
note – kWe is electrical output at terminals corrected for parasitics, but not including gas-booster power.
CARB 2007 Certification
Ingersoll Rand’s MT250 is the first turbine to be certified by the California Air Resource Board’s 2007 emissions standards for distributed generation technologies
Rugged Turbine Engine
• Back-to-back rotating components
• Proven oil-lubricated bearings
• All bearings at cold end
• Based on KG2 engine design
Integrated Heat Recovery
• Controllable output level
• Reduces overall footprint
• No ducting
• Suitable for potable applications
Patented Recuperator
• Critical to high efficiency
• Considered best in industry
Patented Combustor
• Dry low NOx
• Easily meets stringent environmental regulations
Synchronous Generator
• Same technology utilities use to power the grid
• Running backup capability available
Heat Recovery*
|
Characteristic |
Specification |
| Recuperator exhaust temp. w/o HRU** | 468°F (242°C) |
| Engine gas flow** | 4.7 lbm/s (2.13 kg/s) |
| Max water flow | 100 gpm (22.7 m3/hr) |
| Max inlet water pressure | 125 psig (862 kPa) |
| Max inlet water temp. | 180°F (82°C) |
* at ISO Conditions (59oF [15°C] @ sea level, 60% RH) unless otherwise noted
** predicted
Heat Output Recoverable to Water*
*kW from Heat Recovery Unit (HRU) at ISO conditions, damper fully open, ±15%
Fuel Requirements
| Characteristic | Specification |
|
Inlet pressure |
|
| Min temperature | 33°F (1°C) |
| Maxtemp. with gas booster without gas booster |
115°F(46°C) 175°F (79°C) |
| 250SV model* | 245 to 350 WI Btu/scf 9,130 to 13,040 WI kJ/m3 |
| 250SW model* | 325 to 600 WI Btu/scf 12,100 to 22,340 WI kJ/m3 |
| 250SB model* | 325 to 600 WI Btu/scf 12,100 to 22,340 WI kJ/m3 |
| 250ST model* | 500 to 970 WI Btu/scf 18,600 to 36,100 WI kJ/m3 |
| 250SM model* | 800 to 1440 WI Btu/scf 29,800 to 53,600 WI kJ/m3 |
|
250SH model* |
1380 to 1900 WI Btu/scf 51,400 to 70,700 WI kJ/m3 |
* Wobbe Index. Lower heating value (LHV), dry basis, at 14.7 psi (101 kPa) and 59°F (15°C)
Emissions at 100% Load
|
Characteristic |
Specification |
| NOx | <5 ppmv @ 15% O2 |
| CO | <5 ppmv @ 15% O2 |
| VOC | <5 ppmv @ 15% O2 |
* Pipeline natural gas only
Ambient Temperature Limits
| Characteristic | Specification |
|
Outdoor and indoor* |
-10° to 115°F (-23° to 46°C) |
* some configurations may require additional cold-weather options
Physical Specifications
| A | B | C | Weight Estimated | ||
| Indoor Unit | (in) | 84.0 | 146.5 | 89.8 | 12,000 lb |
| (cm) | 213.4 | 372.1 | 228.0 | 5,400 kg | |
| Outdoor Unit | (in) | 84.0 | 162.8 | 160.0 | 12,000 lb |
| (cm) | 213.4 | 413.6 | 406.3 | 5,440 kg |
Minimum Clearance
| Characteristic | Specification |
|
Vertical Clearance |
|
| Horizontal front, rear and left side | 48 in (122 cm) |
| Horizontal right side | 72 in (183 cm) |
Ancillary Equipment
| Characteristic | Dimensions (LxWxH) | Weight, Estimated |
| Generator | 37x39x30 in | 240 lb |
| Braking resistor | 94x99x76 cm | 109 kg |
Sound Levels
| Characteristic | Specification |
| Standard | 83 dB (A) @ 1m |
| Low sound option | 77 dB (A) @ 1m |
The Turbine Engine Cycle
