Jan 21, 2021 17:38 JST

Source: Mitsubishi Heavy Industries, Ltd.

MHIET Conducts Combustion Test for Hydrogen Engine with Pure Hydrogen

Joint Project with AIST to Achieve Stable Combustion of 100% Hydrogen Fuel for a Carbon-free, Hydrogen Economy

- Strengthening efforts to develop a hydrogen engine based on its diesel and gas engines and make it available on the market
- Achieved stable combustion of 100% hydrogen fuel with a single cylinder engine at AIST
- Aims to make 1 MW-class hydrogen engine available for the introduction of hydrogen economy in the 2030s

TOKYO, Jan 21, 2021 - (JCN Newswire) - The Mitsubishi Heavy Industries Group has been working on the development of various products that will have zero CO2 emissions. Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. (MHIET, President: Takeshi Kajino, Sagamihara, Kanagawa Prefecture), a part of the group, is strengthening its efforts to develop a hydrogen engine based on their existing diesel and gas engines. MHIET has conducted a combustion test of a hydrogen engine in a joint research project with Japan's National Institute of Advanced Industrial Science and Technology (AIST, President: Kazuhiko Ishimura). A modified single cylinder gas engine (bore 170mm x stroke 220mm) based on MHIET's 4-stroke reciprocating gas engine "GSR series" offered in 6 to 16 cylinders was installed at the AIST Fukushima Renewable Energy Institute (Koriyama, Fukushima Prefecture).The test was carried out to identify the conditions to achieve stable combustion of 100% hydrogen without emitting CO2.

MHIET and AIST began the joint research on combustion of hydrogen on an engine in fiscal 2019. MHIET and MHI Research and Innovation Center designed and built the hydrogen engine using the knowledge of hydrogen combustion technology, industrial-use diesel engines and natural gas engines, studied the conditions for optimum combustion, and analyzed the test data. AIST constructed and operated the hydrogen supply equipment and the test bench and acquired data utilizing its experience in developing combustion technology for high-power, high thermal efficiency, and low NOx (nitrogen oxide) hydrogen engines for large scale power generation.
Hydrogen has a wide flammability range and a high combustion wave propagation velocity, making the engine prone to abnormal combustion such as backfire and knocking (Note1). The test used MHIET's existing lean-burn gas GSR series engine with additional modifications in fuel supply method, ignition method, timing of intake air valve closing, and excess air ratio etc. for optimum combustion to determine the conditions that ensure stable combustion with hydrogen-only firing and premixed firing. Converting the test results, the maximum output is estimated to be 340kW for 6-cylinder engine and 920kW for 16-cylinder engine. MHIET intends to accumulate more test data that will lead to the realization of multi-cylinder hydrogen engines and aims to make the engines available for the introduction of hydrogen economy in the 2030s.

Further into the future, MHIET will replace the gas engine generator set currently used with "EBLOX" in the "Triple Hybrid" self-sustaining power supply system(2) with a hydrogen engine generator set to provide a distributed energy solution that achieves a self-sustaining power supply with no CO2 emission using solar power, batteries, hydrogen engines, and contribute to an energy-stable and carbon-free economy.

(1) Backfiring is the movement of a flame in the opposite direction toward the engine's intake air passage, which damages the engine intake system. Knocking occurs when the fuel-air mixture self-ignites because the ignition timing is too early or the compression ratio is too high, resulting in a rapid rise in the cylinder pressure and producing a knocking sound, vibration, and damage to internal components.
(2) A combined power generating system of renewable energy, reciprocating engine and batteries that contains optimal control for stable power supply. Please see the following URL for details http://www.mhiet.co.jp/en/news/20190624.html

Source: Mitsubishi Heavy Industries, Ltd.
Sectors: Energy

Copyright ©2021 JCN Newswire. All rights reserved. A division of Japan Corporate News Network.

Related Press Release


Turboden of Italy Receives First Order for Binary Cycle Power Generation Equipment for Natural Gas Pipeline GCS in Egypt
February 16 2021 14:08 JST
 
MHI Invests in C-Zero, a U.S. Hard Tech Startup, to Accelerate Efforts to Produce Clean Hydrogen from Natural Gas
February 10 2021 14:33 JST
 
MHI Thermal Systems Demonstrates the Potential to Remove and Inactivate the Novel Coronavirus (SARS-CoV-2) through Proprietary Air Purification Technology
February 10 2021 14:20 JST
 
Order Received for Philippines/29MW Binary Power Generation Project at EDC's Palayan Geothermal Power Plant
February 03 2021 10:47 JST
 
Operations Get Underway at MHI Vestas Japan Co., Ltd.
February 02 2021 10:54 JST
 
MHI Invests in Infinium, an Electrofuels Solution Provider, to Accelerate Efforts to Decarbonize the Transportation Sector
January 27 2021 16:46 JST
 
MHI-MS Names next-generation deck cranes "S Series"
January 27 2021 16:37 JST
 
MHIEC Receives Order from Kagoshima City to Refurbish Hokubu Waste-to-Energy Plant
January 26 2021 09:13 JST
 
Shell, Mitsubishi Heavy Industries, Vattenfall and Warme Hamburg sign Letter of Intent for 100MW Hydrogen Project in Hamburg
January 22 2021 21:23 JST
 
Low Carbon on Cement Possible with CCS
January 22 2021 08:04 JST
 
More Press release >>

Latest Press Release


More Latest Release >>