IHI ENGINEERING REVIEW
As widely known about retreating ice sheets and rising sea levels, we can waste no time in curbing global warming. Regarding coal-fired thermal power plants, reduction of CO2 emissions is said to be essential. Accordingly, IHI has carried out a demonstration of a co-firing system for coal and a high-ratio of carbon-neutral woody biomass (up to 50% in calorific value) to significantly cut CO2 emissions.
Coal is still an important energy source for power generation because coal reserves are rich and widely distributed, and its price is reasonable. IHI offers boiler plant based on its original technologies to countries all around the world. These technologies reduce CO2 emission by improving efficiency to the highest global standards and effectively utilize resources by using low-quality coal.
The installation of gas-turbine power generation facilities is increased worldwide. Requests for high efficiency not only in rated-load operation but also in partial-load operation have been increasing over the past few years. What is IHI’s power generation control system that always gives our clients the advantage in a wide range of operations?
In the spring of 2015, we introduced low-volatile fuel burners into a boiler plant operated on oil coke and heavy oil. Stable combustion of oil coke is difficult to achieve by conventional techniques. This burner eliminates the use of heavy oil that helps achieve stable combustion and thereby contributes to fuel cost reduction.
IHI PACKAGED BOILER CO., LTD.
Small once-through boilers, which require no official license for operation, are becoming the most common type of general industrial boiler. In the midst of many manufacturers doing their best to make advancements in this field, we introduce our patented combustion load control method for gas-fired boilers and state-of-the-art small once-through oil-fired boilers that reduce purge loss during start-stop.
Over the years, IHI has worked to provide advanced inspection technologies and ensure the safety and reliability of nuclear component. This article introduces a state of the art ultrasonic inspection system based on our know-how cultivated at the sites of nuclear component inspections, which must be maintained at the highest level.
TIGAR® is based on circulating fluidized bed technology, and it is operable at a lower temperature and pressure compared with other gasifiers. It can gasify unused fuel, such as lignite, and is characterized by a great gasification process with an excellent operability and economic efficiency. IHI has started a project to demonstrate its abilities, taking one step closer towards commercialization!!
To achieve both mitigation of climate change and stable supply of electricity at the same time, it is essential to reduce CO2 emissions from coal-fired power plants. This article describes the latest accomplishments of our activities to commercialize carbon capture technology based on a chemical absorption process.
As an economical solution for reducing CO2 emissions from boilers for coal-fired power plant, IHI is conducting verification tests of a system that achieves high power generation efficiency by generating steam with temperatures over 700°C.
The emission of CO2, which is said to be one of the main causes of drastic climate change, has continued to increase. We have continuously been engaged in research and development over the years to accomplish the goal of effectively reducing the emissions of environmental pollutants from coal-fired power plants to zero. Having completed the demonstration in Callide (Australia), the oxyfuel technology is now moving on to the next step.
5. Technical Papers
FERRARA Marco, KOGUMA Yuji
The number of distributed resources and renewable energy generators has increased dramatically in Europe and the US in recent years. In response to this trend, electric power players aim to build new business models based on flexible and optimal grid operation. Energy Storage Systems (ESS) such as rechargeable batteries, are have great potential to enable such models; however, the optimal configuration and operation of storage systems is complex. This article provides a comprehensive introduction to IHI’s leading software platform ESWare, a powerful end-to-end environment for the optimal configuration and operation of energy storage systems in behind-the-meter and grid-based projects.
KOGUMA Yuji, MAEDA Munehiko, IMAKUBO Tomofumi, HIRAO Toshiyuki
In recent years, in order to stably supply electric power and improve energy self-sufficiency in Japan, it has been proposed to utilize renewable energies. In particular, the construction of large-scale photovoltaic power plants (mega-solars) and system interconnections are actively performed. However, the amount of photovoltaic generated power largely varies due to some causes such as the effect of obscuring the sun, and therefore an adverse effect on the voltage and frequency of a system associated with the large-scale introduction of mega-solars is a concern. This paper describes a battery control technique for stably supplying power from a power plant to a system, which we are developing in response to such a concern, and future development.
HANAOKA Ryo, TRESSNER Benedikt, HAMEL Stefan, ZAJAC Krzysztof, SANTHIRASEGARAN Anojan
The utilization of low grade coal is expected to increase in the future as the main source of coal fuel for coal fired power plants. The market for low grade coal firing power station equipment is expected to expand especially with the spread of the use of lignite-firing due to the low fuel cost, as it is not being utilized at the moment, and because it can be produced locally for mine-mouth power plants. IHI has a market entry strategy for lignite-fired power plants. That is why IHI is developing distinctive technologies to establish lignite firing technology and develop high efficiency/low cost lignite-fired power plants. As part of our strategic plan, IHI became shareholders of Steinmüller Engineering GmbH, a German company with rich experience in lignite-fired boilers in Europe. This paper introduces IHI’s strategy for entering the market of lignite-fired power plants.