三菱重工：用100％氢气发电的发动机：建立稳定的燃烧方法
三菱重工和AIST：
三菱重工和其他公司已经为使用100％氢气发电的发动机建立了稳定的燃烧方法。
MHI发动机和涡轮增压器（MHIET）：
制造了以氢为燃料的发动机。
“我们发现了稳定燃烧的条件，氢气利用率为100％。”
政策是利用这次的结果，旨在将1MW级的氢发动机投入实际使用。
常规问题：异常燃烧
氢气的特点是“易燃范围广，燃烧速率高”。
因此，可能发生“异常燃烧，称为逆火或爆震”。
在将其用作燃料时，必须采取针对性措施。
解决方案：稳定的燃烧条件
该测试基于MHIET /稀薄燃烧汽油发动机GSR系列。
根据氢气的燃烧特性
燃油输送方式
点火方法
何时关闭供气阀，
审查了多余的空气流量。
结果，我们发现“仅氢燃烧/预混合方法中的稳定燃烧条件”。
试验结果：
在6缸转换中成功达到340kW，在16缸转换中达到920kW的测试操作成功。
此外，我们将积累测试数据并着手开发多缸发动机。
该政策旨在针对1MW级氢发动机的实际应用。
智能日本
https://www.itmedia.co.jp/smartjapan/articles/2101/22/news042.html
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
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,
January 21, 2021
The Mitsubishi Heavy Industries Group
has been working on the development of various products that will have zero CO2 emissions.
MHI Engine & Turbocharger, Ltd. , 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).
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 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.