Welcome!

News Feed Item

MHI Develops High-efficiency 2MW Gas Engine

Demonstration Testing of Prototype to Commence in September To Confirm World's Highest Level of Power Generation Efficiency

Tokyo, Aug 6, 2014 - (JCN Newswire) - Mitsubishi Heavy Industries, Ltd. (MHI), as part of the Strategic Innovation Program for Energy Conservation Technologies operated by the New Energy and Industrial Technology Development Organization (NEDO), has developed a 2-megawatt (MW) 16-cylinder high-speed gas engine achieving one of the world's highest power generation efficiency ratings in a high-speed gas engine. Through the adoption of technologies including two-stage turbocharging1 and Miller cycle2, the new engine offers power generation efficiency exceeding 44.7% (lower heating value3), one of the highest ratings for a high-speed gas engine for power generation and cogeneration applications.

Demonstration testing using a prototype of the new engine will get under way in September. Ultimately MHI is targeting commercial production of the engine for applications including distributed generation, regular generation and cogeneration, and emergency generation during times of disaster.

Notes:

1. Two-stage turbocharging: In two-stage turbocharging, turbochargers are arranged in series in the low- and high-pressure stages and an intercooler is placed between them, creating a configuration that achieves outstanding efficiency and a high pressure ratio.

2. Miller cycle: Whereas in the normal (Otto) cycle the compression ratio and expansion ratio of the cylinders are equal, in the Miller cycle the profile of the valve cam is engineered so that the timing of the valve closing shifts in such a way that the expansion ratio becomes greater than the compression ratio - a configuration aimed at enhancing thermal efficiency.

3. Lower heating value (LHV): LHV is one way of expressing the gross thermal efficiency of internal combustion power generation. It refers to the calorific value at which fuel combusts adequately to convert to work. In relation to the thermal efficiency of an engine, LHV derives from the value of work calculated as calorific value divided by the calorific value of the supplied fuel.

1. Overview

In Japan, the importance of securing electricity supplies and distributed power generation sources has intensified in the wake of the Great East Japan Earthquake of 2011, and at both the national and local levels governmental bodies are devising measures to encourage the introduction of cogeneration systems. Overseas, substantial expansion in the market for gas engine power supplies is anticipated against the backdrop of the promotion of distributed power generation systems responding to shale gas development in North America and to expanding power consumption in China and other Asian countries.

MHI's newly developed 16-cylinder high-speed gas engine has achieved a power generation efficiency rating in excess of 44.7% (LHV), one of the highest ratings in a gas engine for use in power generation and cogeneration. This achievement has been made possible through the development of two-stage turbocharging technology enabling the adaptation of a high Miller cycle, the development of elemental technologies for a high power ratio to raise mechanical efficiency, and the achievement of high power generation efficiency.

2. Latest Breakthroughs

Development of two-stage turbocharging technology enabling adaptation of a high Miller cycle

The adaptation of a high Miller cycle enabling outstanding power generation efficiency requires a turbocharging system to feed the necessary air efficiently to the combustion chamber. MHI succeeded in developing two-stage turbocharging technology achieving an outstanding pressure ratio and high efficiency rating by installing high-efficiency turbochargers applying expertise in automotive compressors in both the low- and high-pressure stages.

Development of elemental technologies for a high power ratio to raise mechanical efficiency

The newly developed 2MW-class gas engine cuts the engine's mechanical loss ratio, and thus raises mechanical efficiency, by improving engine output while maintaining the same exhaust volume as the GS16R2, a 1.5MW-class gas engine developed by MHI in 2012. To cope with the increased combustion pressure and thermal load accompanying higher output, elemental technologies were developed for important parts such as high-strength cylinder heads and steel pistons achieved through thermal structural analysis, cooling system analysis, etc. These parts will next undergo durability testing and evaluation.

High power generation efficiency

As a result of the two breakthroughs described above, the newly developed engine offers 0.5MW higher power generation output and 4.4-point higher gross thermal efficiency than the current high power-outputting GS16R2 (40.3%), all with the same exhaust volume and same engine rotation speed.

3. Future Plans

Plans call for the installation of a prototype at MHI's Sagamihara District in Kanagawa Prefecture, where the company has an engine production base, for use in its non-utility power generation facility, with demonstration testing to continue through February 2015. After demonstration testing, which will include tests of the prototype's power output, efficiency and all other performance categories, the system will be used as the power source of a model power generation and cogeneration package set to undergo demonstration operation.

MHI further plans to steadily expand from the newly developed 16-cylinder model to a full series of 6- to 24-cylinder models offering outputs ranging from 0.75 to 3 MW. In this way MHI will expand its lineup to accommodate a broad array of needs, both in Japan and overseas, for distributed power supplies, regular power generation and cogeneration systems, and emergency power supplies in preparation for disasters of all kinds.

About Mitsubishi Heavy Industries

Since its foundation in 1884, Mitsubishi Heavy Industries (MHI) has sought pioneering new monodzukuri (manufacturing) techniques, building the foundations for the development of the entire industry. Today, with environmental and energy issues to the fore, MHI provides people around the world with eco-friendly products, and contributes to society through its involvement in global infrastructure projects and other business activities. For more information, please visit the MHI website at www.mhi.co.jp.



Source: Mitsubishi Heavy Industries

Contact:
Mitsubishi Heavy Industries
Hideo Ikuno
[email protected]
+81-3-6716-5277


Copyright 2014 JCN Newswire. All rights reserved. www.japancorp.net

More Stories By JCN Newswire

Copyright 2008 JCN Newswire. All rights reserved. Republication or redistribution of JCN Newswire content is expressly prohibited without the prior written consent of JCN Newswire. JCN Newswire shall not be liable for any errors or delays in the content, or for any actions taken in reliance thereon.

Latest Stories
For years the world's most security-focused and distributed organizations - banks, military/defense agencies, global enterprises - have sought to adopt cloud technologies that can reduce costs, future-proof against data growth, and improve user productivity. The challenges of cloud transformation for these kinds of secure organizations have centered around data security, migration from legacy systems, and performance. In our presentation, we will discuss the notion that cloud computing, properl...
The deluge of IoT sensor data collected from connected devices and the powerful AI required to make that data actionable are giving rise to a hybrid ecosystem in which cloud, on-prem and edge processes become interweaved. Attendees will learn how emerging composable infrastructure solutions deliver the adaptive architecture needed to manage this new data reality. Machine learning algorithms can better anticipate data storms and automate resources to support surges, including fully scalable GPU-c...
With more than 30 Kubernetes solutions in the marketplace, it's tempting to think Kubernetes and the vendor ecosystem has solved the problem of operationalizing containers at scale or of automatically managing the elasticity of the underlying infrastructure that these solutions need to be truly scalable. Far from it. There are at least six major pain points that companies experience when they try to deploy and run Kubernetes in their complex environments. In this presentation, the speaker will d...
To Really Work for Enterprises, MultiCloud Adoption Requires Far Better and Inclusive Cloud Monitoring and Cost Management … But How? Overwhelmingly, even as enterprises have adopted cloud computing and are expanding to multi-cloud computing, IT leaders remain concerned about how to monitor, manage and control costs across hybrid and multi-cloud deployments. It’s clear that traditional IT monitoring and management approaches, designed after all for on-premises data centers, are falling short in ...
When applications are hosted on servers, they produce immense quantities of logging data. Quality engineers should verify that apps are producing log data that is existent, correct, consumable, and complete. Otherwise, apps in production are not easily monitored, have issues that are difficult to detect, and cannot be corrected quickly. Tom Chavez presents the four steps that quality engineers should include in every test plan for apps that produce log output or other machine data. Learn the ste...
Digital Transformation is well underway with many applications already on the cloud utilizing agile and devops methodologies. Unfortunately, application security has been an afterthought and data breaches have become a daily occurrence. Security is not one individual or one's team responsibility. Raphael Reich will introduce you to DevSecOps concepts and outline how to seamlessly interweave security principles across your software development lifecycle and application lifecycle management. With ...
The vast majority of businesses now use cloud services, yet many still struggle with realizing the full potential of their IT investments. In particular, small and medium-sized businesses (SMBs) lack the internal IT staff and expertise to fully move to and manage workloads in public cloud environments. Speaker Todd Schwartz will help session attendees better navigate the complex cloud market and maximize their technical investments. The SkyKick co-founder and co-CEO will share the biggest challe...
Enterprises are striving to become digital businesses for differentiated innovation and customer-centricity. Traditionally, they focused on digitizing processes and paper workflow. To be a disruptor and compete against new players, they need to gain insight into business data and innovate at scale. Cloud and cognitive technologies can help them leverage hidden data in SAP/ERP systems to fuel their businesses to accelerate digital transformation success.
Dhiraj Sehgal works in Delphix's product and solution organization. His focus has been DevOps, DataOps, private cloud and datacenters customers, technologies and products. He has wealth of experience in cloud focused and virtualized technologies ranging from compute, networking to storage. He has spoken at Cloud Expo for last 3 years now in New York and Santa Clara.
Predicting the future has never been more challenging - not because of the lack of data but because of the flood of ungoverned and risk laden information. Microsoft states that 2.5 exabytes of data are created every day. Expectations and reliance on data are being pushed to the limits, as demands around hybrid options continue to grow.
Machine learning provides predictive models which a business can apply in countless ways to better understand its customers and operations. Since machine learning was first developed with flat, tabular data in mind, it is still not widely understood: when does it make sense to use graph databases and machine learning in combination? This talk tackles the question from two ends: classifying predictive analytics methods and assessing graph database attributes. It also examines the ongoing lifecycl...
While some developers care passionately about how data centers and clouds are architected, for most, it is only the end result that matters. To the majority of companies, technology exists to solve a business problem, and only delivers value when it is solving that problem. 2017 brings the mainstream adoption of containers for production workloads. In his session at 21st Cloud Expo, Ben McCormack, VP of Operations at Evernote, discussed how data centers of the future will be managed, how the p...
Dion Hinchcliffe is an internationally recognized digital expert, bestselling book author, frequent keynote speaker, analyst, futurist, and transformation expert based in Washington, DC. He is currently Chief Strategy Officer at the industry-leading digital strategy and online community solutions firm, 7Summits.
Wooed by the promise of faster innovation, lower TCO, and greater agility, businesses of every shape and size have embraced the cloud at every layer of the IT stack – from apps to file sharing to infrastructure. The typical organization currently uses more than a dozen sanctioned cloud apps and will shift more than half of all workloads to the cloud by 2018. Such cloud investments have delivered measurable benefits. But they’ve also resulted in some unintended side-effects: complexity and risk. ...
With 10 simultaneous tracks, keynotes, general sessions and targeted breakout classes, @CloudEXPO and DXWorldEXPO are two of the most important technology events of the year. Since its launch over eight years ago, @CloudEXPO and DXWorldEXPO have presented a rock star faculty as well as showcased hundreds of sponsors and exhibitors! In this blog post, we provide 7 tips on how, as part of our world-class faculty, you can deliver one of the most popular sessions at our events. But before reading...