F-22

Keywords

Y3equipment or facility

Z3E25

natural gas

general-purpose machinery
Kawasaki Heavy Industries, Ltd.

Gas EngineFeatures
S 49.0% high power generation efficiency;
49.5% achieved by the high-efficiency
KG-V series; 51.0% achieved by the KG-T
series to further enhance economicefficiency.
S The operating range is extensive,spanning from load of 30% to 100%.
S Low NOx emission 200ppm or less (at 0%O2) for high environmental performance.
Green Gas Engine
S Electric spark ignition system is appliedand no liquid fuel is required.
S Wide power range covering 5 to 7.8MW.
S Developed by Kawasaki’s own technology
to meet customer demands flexibility.
S Lightweight for easy transportation andinstallation.
ryStackGenerator RoomCooling Tower

Exhaust Gas
BoilerExhaust Gas
Silencer

Typical Power Station
Solenoid Valve
Spark Plug
Fuel Gas
Pre-combustion
Chamber
Non-return Valve
Charge Air

Exhaust Gas

Basic Concept or Summa- Spark plug is applied for ignition system.
- Gas supply to main and pre-combustion chambers is independently
controlled by solenoid valves to achieve optimum gas injection.
- Anti-knocking performance is improved by optimizing combustion
chambers.
- Individual cylinder control is applied to obtain the maximum
performance.
- Variable nozzle system (see the figure below) applied to air supply
control in the KG-V series instead of the conventional bypass
system to allow high efficiency by making effective use of exhaustenergy.
- Cogeneration system by utilizing waste heat saves energy
significantly.

Main combustion
ChamberGas Supply System

S LineupType

KG-18-V

KG-18-T

300

300

300

KG-12

Cylinder Diameter (mm)KG-18

Rotation Speed(min-1)

50Hz75075075060Hz720

720720Power GenerationOutput (kW)

50Hz

5,200

7,800

7,800

7,800

60Hz

5,000

7,500

7,500

7,500

Power Generation Efficiency (%)

4949.5

51NOx(ppm) [O2=0% equivalent]

200200200

Possible Driving Area*

30-100%30-100%30-100%

Variable Nozzle
System2-stage
Supercharging
SystemBypass System
Supercharging System*Standard specifications 50--100%,
Options 30-100% (Can be operated for up to 95 hours for the range of 30-35%)

F-22

Effects or Remarks

Low Temp. Water(7.4%)
Electric Power(48.5%)

Loss (15.4%)

Total Efficiency:
84.6%

High Temp. Water(13.1 %）Steam(15.6 %）Power Generation Efficiency (%)- High partial load efficiency- Wide operating range

Electrical Efficiency (%)- World highest electrical efficiency (49.0%) :CO2 reduced by approx. 5%
Additional 1% reduction in the KG-V series- Low NOx, 200ppm or less (at O2=0%):
NOx reduced vastly- Total efficiency of 84.6%
by utilizing waste heat (KG series)

50

グリーンガスエンジン
Green Gas Engine48

高効率- Higher
Efficiency
低ＮＯｘ NOx- Lower

46440

従来レベル
Existinglevel200400600

NOx [at O2 = 0%] (ppm)

50403030405060708090100Load (%)

Installation in Practice or Schedule
Domestic

S Power plant No. 1 (KG-18/7.8MW) is installed at Joetsu City, Niigata Prefecture, and has
been operated since December 2007.
S Power plant No. 2 (KG-12-V/5.0MW) is installed at KHI Kobe works in Kobe City, and has
been operated since January 2010.
S 14 units of KG-18 (109.2MW) were delivered to the Sodegaura Green Power Plant ofNihon Techno Co., Ltd., in August 2012.
S Received orders for 200 units (as of the end of March 2023).

Panoramic view of Nihon Techno.

Inside electric generator room at Nihon Techno

Overseas

S Orders have been received for 3 units of the KG-18V for the Berkprai power plant inThailand in 2017, which started commercial operation in 2019.
S An order has been received for 1 unit of the KG-18V for a private project in Taiwan in2018.
S Orders have been received for 2 units of the KG-12 and 1 unit of the KG-18 for private
projects in Malaysia in 2018 and 2019.

Contact:

Kawasaki Heavy Industries, Ltd.,
Energy Solution & Marine Engineering Company
Tel: +81-3-3435-2211 Fax: +81-3-3435-2022
URL: http://global.kawasaki.com/