IHI Power Systems Division

IHI Corporation



IM270 Series

Powerful and clean original IHI gas turbines

Since completing development of the first jet engine produced in Japan in 1945, IHI, which has produced around five thousand such jet engines since then, has developed its original IM270 Low-emission Gas Turbine Engine using the knowledge and technology it has built up over the years through that work in jet engines and other related designs. The IM270 uses a Combined Heat and Power (Cogeneration) gas turbine with high reliability that is friendly to human and the environment and provides both high performance and low levels of NOx emissions.

Product Features

1. High Performance and High Energy Efficiency for Energy Saving

The IM270 derives industrial compressor and automotive turbocharger technology and applies to this technology to its compressor section, and deprives aircraft engine technology and applis this technology to its axial-flow turbines.
These technologies contribute to improve overall system efficiency of the Combined Heat and Power (Cogeneration).

2. Excellent Environmental Performance

Adoption of a low-emission burner allows the design to pass restrictions on emissions of NOx in exhaust gas by a wide margin.
<For city gas: NOx = 20 ppm at 16% O2 (84 ppm at 0% O2>

3. Abundant Experience and High Reliability

The IM270 uses a simple structure that requires fewer parts. IHI utilizes the aircraft engine technology and materials it has in the hot section of engines, which is subjected to a great deal of fatigue. This improves reliability and ensures that high levels of reliability are maintained.

4. Compact System Design

IHI developed IHI unique and original GT package design "IPAC", in order to minimize the amount of space necessary for installation.

5. Minimal Levels of Vibration

The gas turbine is a rotating motion machine so that the vibration of gas turbine is low level that can be easily counteracted with foundational work and temporary works for construction.

6. Low-noise Design for Low Impact on the Surrounding Environment

The noise that the gas turbine makes during operation is emitted at high frequencies making it easier to implement anti-noise countermeasures than for reciprocating engines. (Standard design value: 85 dB at 1 meter from machine side)

7. Original IHI Variable Heat and Power Gas Turbine (IHI-FLECS)

The lineup of products also includes IHI-original variable heat and power gas turbines that inject steam into the burner to improve power generating capabilities.

8. Ability to Support Dual Fuel and Normal-use and Emergency-use Usage Specifications

The product lineup includes a Dual Fuel System that can use both gas fuels (city gas, natural gas) and liquid fuels (kerosene) by switching between them and can be used as a power supply for both normal and emergency use.

Product features

Fuel: Natural gas, city gas

Types of fuel Natural gas, city gas
Frequency 50 Hz/60 Hz
System type Simple cycle Combined heat and power (cogeneration)
Power enhancement at
high ambient temperatures
None Inlet air cooling None Inlet air cooling
Power output 2000 kW 2000 kW 2000 kW 2000 kW
Fuel consumption rate 14.17 MJ/kWh 14.17 MJ/kWh 14.17 MJ/kWh 14.17 MJ/kWh
Thermal efficiency at the generator terminal 25.4% 25.4% 25.4% 25.4%
Thermal efficiency for heat recovery 55.1% 55.1%
Total thermal efficiency 80.5% 80.5%
NOx (O2 = 16%) 20 ppm 20 ppm 20 ppm 20 ppm

*Usage conditions: Inlet air temperature: 15℃, Atmospheric pressure: 1013 hPa, Relative humidity: 60%,
Supply steam flow pressure: 0.78 MPa, Supply water temperature: 60℃, Voltage: 6600 V/3300 V
*The above performance values list average performance in New&Clean mode.

Types of fuel Natural gas, city gas
Frequency 50 Hz/60 Hz
System type Variable heat and power (IHI-FLECS)
Power enhancement at high ambient temperatures None Inlet air cooling
Power output Max. power Max. outlet supply flow Max. power Max. outlet supply flow
2500 kW 2000 kW 2500 kW 2000 kW
Fuel consumption rate 12.77 MJ/kWh 14.46 MJ/kWh 12.77 MJ/kWh 14.46 MJ/kWh
Thermal efficiency at the generator terminal 28.2% 24.9% 28.2% 24.9%
Thermal efficiency for heat recovery 29.7% 51.7% 29.7% 51.7%
Total thermal efficiency 57.9% 76.6% 57.9% 76.6%
NOx (O2 = 16%) 20 ppm 20 ppm 20 ppm 20 ppm

*Usage conditions: Inlet air temperature: 15℃, Atmospheric pressure: 1013 hPa, Relative humidity: 60%,
Supply steam flow pressure: 0.78 MPa, Supply water temperature: 60℃, Voltage: 6600 V/3300 V
*The above performance values list average performance in New&Clean mode.

Fuel: Kerosene

Type of fuel Kerosene
Frequency 50 Hz/60 Hz
System type Simple cycle Combined heat and power (cogeneration)
Power enhancement at high ambient temperatures None Inlet air cooling None Inlet air cooling
Power output 2000 kW 2000 kW 2000 kW 2000 kW
Fuel consumption rate 14.34 MJ/kWh 14.34 MJ/kWh 14.34 MJ/kWh 14.34 MJ/kWh
Thermal efficiency at the generator terminal 25.1% 25.1% 25.1% 25.1%
Thermal efficiency for heat recovery 52.3% 52.3%
Total thermal efficiency 77.4% 77.4%
NOx (O2 = 16%) 70 ppm 70 ppm 70 ppm 70 ppm

*Usage conditions: Inlet air temperature: 15℃, Atmospheric pressure: 1013 hPa, Relative humidity: 60%,
Supply steam flow pressure: 0.78 MPa, Supply water temperature: 60℃, Voltage: 6600 V/3300 V
*The above performance values list average performance in New&Clean mode.

Type of fuel Kerosene
Frequency 50 Hz/60 Hz
System type Variable heat and power (IHI-FLECS)
Power enhancement at high ambient temperatures None Inlet air cooling
Power output Max. power Max. outlet supply flow Max. power Max. outlet supply flow
2500 kW 2000 kW 2500 kW 2000 kW
Fuel consumption rate 12.81 MJ/kWh 14.52 MJ/kWh 12.81 MJ/kWh 14.52 MJ/kWh
Thermal efficiency at the generator terminal 28.1% 24.8% 28.1% 24.8%
Thermal efficiency for heat recovery 30.2% 52.2% 30.2% 52.2%
Total thermal efficiency 58.3% 77.0% 58.3% 77.0%
NOx (O2 = 16%) 70 ppm 70 ppm 70 ppm 70 ppm

*Usage conditions: Inlet air temperature: 15℃, Atmospheric pressure: 1013 hPa, Relative humidity: 60%,
Supply steam flow pressure: 0.78 MPa, Supply water temperature: 60℃, Voltage: 6600 V/3300 V
*The above performance values list average performance in New&Clean mode.

Standard IM270 Layout Diagram/Combined Heat and Power (Cogeneration)



Symbol Name
1 Gas turbine generator
2 Heat recovery steam generator
3 Economizer
4 Fuel gas compressor
5 Gas turbine inlet filter
6 Enclosure ventilation inlet
7 Enclosure ventilation exhaust
8 Exhaust gas duct
9 Pump unit for the boiler supply water
10 Expansion joint for the exhaust bellows
11 Chimney
12 Boiler blowdown unit
13 Generator breaker panel
14 Auxiliary low-pressure panel
15 Gas turbine control panel
16 Monitoring system
17 NOx meter