Development of Computational Fluid Dynamics (CFD) Analysis Dealing with CombustionThrough CFD analysis on chemical reaction, heat transfer, and flow, Tokyo Gas is making contributions to understand and improve the state of combustion, which leads to make gas appliances more energy-efficient and environmentally-friendly.
〔Gas range (photograph) and temperature distribution (simulation)〕
Various gas appliances are used in commercial and industrial fields. To ensure safe usage, each of these appliances must be developed in such a way as to prevent incomplete combustion or the release of harmful substances such as carbon monoxide (CO) and nitrogen oxide (NOx). Tokyo Gas deals with Computational Fluid Dynamics (CFD) analysis to carefully examine the combustion state for such appliances, and works to further improve them.
Characteristics of combustion analysis
The use of CFD analysis allows us to conduct careful examinations and obtain data that is difficult to measure such as:
- Temperature distribution inside the combustion chamber
- Location and size of flame
- Emission of CO and NOx
〔Example of using CFD analysis to reduce NOx generation in an industrial furnace〕
As is well known, combustion analysis takes a lot of time. For example, the large-scale numerical simulation needed for an industrial furnace can take over a month to perform in order to have an accurate estimation. We are working on devising high-speed and precise numerical methods which will allow us to promptly service customers' needs.