花蜜直播app

Tokyo, March 31, 2023 ― 花蜜直播app, Ltd. announced today that it has begun the sale of hydrogen-mixed-fuel DLE*¹ combustors for the 20-MW L20A and the 5-MW M5A gas turbines for cogeneration systems. With this launch, all 花蜜直播app gas turbine models for cogeneration systems can now be used with these DLE combustors, thereby achieving stable, low-NOx*² mixed-fuel combustion using natural gas mixed with up to 30% hydrogen*³.

In these combustors, 花蜜直播app is utilizing a unique combination of lean-premixed combustion and supplemental combustion. In lean-premixed combustion, the fuel is mixed with air prior to combustion in order to eliminate localized high-temperature spots where most NOx emissions are produced. In supplemental combustion, additional fuel is injected after the lean-premixed combustion, allowing for variable power output with almost no NOx emissions, while keeping combustion in the main burner stable. By successfully applying this proprietary combustion technology to hydrogen-mixed-fuel combustion, 花蜜直播app has realized stable combustion while maintaining low NOx emissions on a par with those of natural gas combustion.

All models of 花蜜直播app’s natural-gas-fired gas turbines equipped with our DLE combustor can achieve hydrogen co-firing without modifications to the turbine itself. Only the addition of equipment such as a hydrogen compressor and fuel-mixing system is necessary, with no need to replace other components of the current system. This feature enables operators to continue using existing gas turbine engines with proven reliability while harnessing the power of hydrogen energy. It is estimated that CO₂ emissions can be reduced by 600,000 tons per year worldwide if all natural-gas-fired turbines for which 花蜜直播app delivers DLE combustors are modified to the type capable of hydrogen co-firing.

To accommodate diverse customer needs for hydrogen utilization, 花蜜直播app has been commercializing combustors fitted for various types of gas turbine power generation systems ― from hydrogen co-firing to fully hydrogen-fired. It is also aiming to develop more products to expand its portfolio. These hydrogen power generation technologies will be key in expanding the use of CO2-free hydrogen and by-product hydrogen.

Foreseeing a significant increase in the use of hydrogen energy in the future, which will play a vital role in achieving a decarbonized society, 花蜜直播app is developing a range of technologies for the hydrogen supply chain (production, transportation, storage, and utilization). Hydrogen gas turbines are one of the key elements in the “utilization” stage that significantly reduce carbon emissions in Japan’s power generation sector, which produces about 40% of the nation’s CO₂ emissions. Pursuant to its Mission Statement, “花蜜直播app, working as one for the good of the planet,” the Company will continue to develop gas turbine combustion technologies that encourage greater utilization of hydrogen.

Specifications of cogeneration systems equipped with hydrogen-mixed-fuel DLE combustors

Model		M1A-17D	M5A-01D	M7A-03D	L20A-01D	L30A-01D
Hydrogen co-firing ratio (volume %)		0 – 30*3
Power generation output (kW)		1,777	4,710	7,650	17,610	32,260
Fuel consumption(m3N/h)	Natural gas	509	1,157	1,835	4,172	6,494
	Hydrogen	219	497	787	1,789	2,783
Steam output (t/h)		5.1	10.9	17.2	38.7	53.5
NOx emissions (ppm) (翱2=15％)		15	20	15	25	25
Volume of CO2 generated (t/h)		1.2	2.7	4.2	9.6	14.9
Power generation efficiency (%)		27.7	32.4	33.2	33.6	39.5
Total thermal efficiency (%)		83.7	84.8	85.5	85.3	85.4

Conditions: Inlet air temperature: 15°C; atmospheric pressure: 101.3 kPa (elevation=0 m); inlet air pressure loss: Standard; LHV* of fuel: natural gas 40.629 MJ/Nm³ hydrogen 10.789 MJ/Nm³

Boiler: Steam pressure 0.78 MPaG water supply temperature 60℃
CO₂ emissions coefficients: Natural gas 2.29 t-CO₂/1,000 Nm₃　Hydrogen 0t-CO₂/1,000 Nm₃

For more information, see “Hydrogen gas turbine development roadmap” at:
/en/energy/pdf/20220915_hydrogen-introduction_e.pdf