IHI Corporation | Energy Systems

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IHI contributes to the stable supply of electric power by providing the primary equipment for hydroelectric, thermal and nuclear power systems. In recent years, IHI has successfully proceeded with the development of new technologies for utilization of new forms of energy, including natural energy sources. With regard to boilers, which are a core element in thermal power plants, IHI is one of the three major Japanese manufacturers. In addition to supplying boilers to many domestic power companies, IHI has been supplying power generation boilers to Australia, Southeast Asia, China, the Middle East and North America, including ten 660,000 kW boilers to Australia. IHI has even manufactured and constructed ultra-large scale boilers of over 1 million Kw capacity for power generation.
Furthermore, IHI is involved in the technological development and implementation of more efficient boilers by using high steam conditions and mixed biomass combustion in order to reduce CO2 emissions.
In nuclear power generation, IHI supplies main components such as reactor pressure vessels, primary containment vessels and piping systems. IHI is also involved in the development and construction of systems related to atomic fuel recycling.
With regard to atomic power generation equipment, IHI is supplying not only conventional boiling water reactors (BWRs), or advanced boiling water reactors (ABWRs), but also has started to supply pressurized water reactors (PWRs).

Utilizing our rich experience in this field, IHI has used its accumulated technology to provide boilers for industrial use and independent power producers (IPPs). In addition to using coal, petroleum and natural gas as fuel, IHI has the technologies and experiences to use a wide variety of fuels, including fuel produced from waste materials and biomass, such as petroleum coke, residual oil and organic residues.
Furthermore, IHI is supplying power generation equipment using gas turbines derived from aircraft jet engines, diesel engines and gas engines to both Japanese and overseas clients.

Large-scale boiler at a domestic utility

This is a large scale coal-fired boiler for a thermal power plant operated by an electric company. As an electric company boiler supplier helping to stably supply electricity, IHI made an effort to meet the steam conditions required for improvement of plant efficiency, and as a result, achieved the world's highest steam standard. Also, in response to changes in electricity demand, IHI was the first to establish high operability sliding pressure operation boilers that are able to flexibly change their outputs. Furthermore, IHI has upgraded its technologies to match the needs of the age by, for example, developing advanced combustion technology in order to achieve high environmental performance. Due to such high technological capabilities, a larger number of IHI boilers have been exported and are now contributing to stable supply of electricity all over the world.

Large-scale boiler at a domestic utility

IHI supplied the boiler for the first 1,050 MW unit of this coal-fired thermal power facility. To meet the demand for greater power and improved efficiency, this boiler was designed with the largest capacity and the highest steam conditions in Japan.

Pressurized fluidized-bed combustion (PFBC) boilers

PFBC systems are a state-of-the-art technology for coal-fired combined cycle power plants. With a boiler installed inside a pressurized vessel, the plant will generate power using steam and gas to drive steam and gas turbines. IHI has supplied the largest capacity PFBC plants in the world.

Large-scale boiler at an overseas utility

IHI has developed and delivered a large number of boilers not only for the Japanese market but also for overseas markets. IHI boilers have a high operation rate which contributes to stable power supplies in many countries.

Large-scale tower-type boiler

The first large-scale tower-type boiler in Japan was built by IHI. It features a compact design that enabled it to be built next to an operating plant; another example of how IHI uses new technology to meet energy needs.

Heat recovery steam generator (HRSG) for combined cycle power plant

A waste-heat recovery boiler facility used for combined cycle power generation. Heat produced by a gas turbine power plant is converted into steam, which in turn is used to drive a steam turbine power facility.

Primary containment vessel for nuclear power plant

Steel vessels are used as primary containment for nuclear reactors and auxiliary equipment. Vessels made by reinforced concrete with steel liners have also been used recently.

Reactor pressure vessel for nuclear power plant

This kind of pressure vessel for nuclear power plant constructed of extremely thick steel plate lined inside with stainless steel cladding.

Waste receptacle and storage facility

When domestic power generation companies have nuclear fuel recycled abroad, high level radioactive waste is vitrified. This vitrified waste is received by and stored in this facility.

Radioactive waste vitrification facility

In this facility, highly radioactive liquid waste is mixed with molten glass, poured into stainless steel canisters, cooled, and then solidified.

IPP and PPS facilities boiler

These have the largest capacities for coal fired boilers used by independent power producers (IPP) in Japan. IHI offers a wide range of boilers from small scale subcritical boilers to large supercritical pressure boilers that handle various types of fuels, such as coal, heavy crude oil, and gas. This sort of line-up allows planning of boiler installations that match the business scale as well as the needs. IHI effectively uses its advanced technology and rich know-how accumulated through experience with power generation boilers to achieve both high reliability and low running costs. In addition, IHI offers total engineering including environmentally friendly facilities such as flue gas denitration facilities and exhaust gas desulfurization facilities, thereby realizing eco-friendly plants.
(PPS: Power Producer and Supplier)

Industrial boilers

IHI applies technologies used for the most advanced large-size commercial boilers in its medium and small scale boilers, commonly referred to as industrial boilers. These industrial boilers are used in various industries (for distributing factory steam) and for private power generation.

Circulating fluidized-bed combustion boiler (CFB)

This boiler can burn any of a variety of fuels, including low-grade coal and industrial waste, under faster fluidizing conditons.

Vacuum residue oil boiler

This is a boiler that effectively uses the vacuum residue oil and gas, which are by products of oil refineries, to produce power steam for power generation and factory processes.
Environment preservation equipment was thoroughly considered for this plant that was constructed near an urban area.

Gas turbine power plant "LM6000"

These are 100 MW class power plants that combine two LM6000 gas turbines, two heat recovery steam generators and one steam turbine to produce the world's most efficient power generation, and best environmental performance and reliability.

Gas turbine power plant "LM2500"

These are 20 to 30 MW class power plants that use the high efficient and very reliable gas turbine, LM2500 that is derived from a lightweight and compact aero engine.

Gas turbine co-generation system "IM270"

These are typical energy-saving systems that generate 2 MW of power and 6 tons of steam per hour by combining our original designed and developed high-efficiency and low NOx type gas turbine, IM270 and a heat recovery steam generator.

Co-generation system "IM400 IHI-FLECS"

These are 4 to 6 MW class and IHI original co-generation systems that can change the output of both power and heat (steam) according to demand. If there is surplus steam, it can be converted to electric power output to recover the energy.

Gas engine "12V22AG"

The 400 kW to 5,800 kW gas engine series can operate in high efficiency using natural gas and city gas, as well as low calorie gases from gasification melting furnaces, etc., therefore, it contributes greatly to CO2 reduction.