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Heat, fluid flow and combustion technologies

Numerical analysis of flow, multi-phase flows, heat transfer, combustion, etc.

Engineers use numerical analysis, mainly based on computational fluid dynamics (CFD), to find the conditions of turbulent flows, multi-phase flows (flows of gas, liquid, and solid combined), heat transfer (convection and radiation), and heat and flow fields accompanied by combustion or chemical reactions. The progress of analysis technology and the increasingly high performance of computers enable numerical analysis to be applied to an increasingly wide range of areas and raise the level of accuracy. Today, it is an indispensable tool in all aspects, from research and development to operation, of thermal fluid-related equipment for understanding of phenomena, examination of shapes and conditions for design, and troubleshooting.

(Video) Analysis of two-phase (solid and gas) flow in a fluidized bed

(Video) Analysis of two-phase (solid and gas) flow in a cyclone separator

(Video) Analysis of two-phase (solid and gas) flow in a cyclone separator


Wind-tunnel experiments, thermal and fluid tests, measurement technology

IHI has one of Japan's largest diffusion wind-tunnel devices to experiment in and measure the distribution of concentrations of flows, smoke, and the like around equipment at plants, on vessels, at sea as well as around cities. In addition, the company has high-pressure combustion test systems and various heat transfer and combustion test systems. Furthermore it designs and manufactures test system suited to a specific problem if necessary, and use it for the research and development of new equipment. IHI is also actively working to develop new measurement technologies. It is leading others in studying the visualization of flows by applying new principles called "tomographic PIV", which employs three or more cameras to measure three-dimensional flow field, and "electric resistance tomography", which reproduces the distribution of matters in the measurement section utilizing the difference of electric resistance.

(Video) Visualized streamlines in the wind-tunnel experiment

(Video) Wind-tunnel experiments using a model of an entire bridge (response to turbulent flows)


Development of thermal, fluid and combustion equipments

IHI is developing thermal, fluid and combustion equipments based on the basic technology it has accumulated over the years. It developed a twin-tower gasification furnace that uses a proprietary principle, and it has gradually conducted experiments from a laboratory-scale until recently, it began to operate a test plant called "TIGAR" in Indonesia. Other results include carbon dioxide collection equipment aimed at mitigating global warming, oxygen-burning boilers, binary power generators, confined gas heaters, and cell cultivation tanks developed to produce vaccines quickly. The performance of existing equipment is improved by control and refinement of heat and flows.

(Video) Visualization of air bubbles in the cell cultivation tank

(Video) Distribution of void fractions in the cell cultivation tank predicted by CFD

参考:IHI ENGINEERING REVIEW 2012年度 Vol.45 No.1 Technologies1 
    IHI ENGINEERING REVIEW 2012年度 Vol.45 No.1 Technologies2


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