In Canada, we are proud to contribute to reducing the global carbon footprint by exploiting renewable energy sources that are readily available, like hydropower. However, it is important to manage this resource responsibly and cost effectively by reducing risk of failure and increasing efficiency. Using fluid dynamics, structural mechanics and thermal analysis, Kawa Engineering Ltd. delivers a broad range of services to the hydropower industry (as well as others) to allow customers to design and test many parts of these facilities before they are built. As part of celebrating Canadian Engineering Month, here’s a recent interesting project that developed a location for a powerhouse.
3-D geometry used for flood analysis. Elevations are relative to sea level.
We used engineering simulation to help locate the powerhouse close to a waterfall but in a spot with minimal flood risk. If flooding occurred in the powerhouse, it would be extremely costly. Finding a proper location also means that there is decreased need for additional components to protect electrical equipment (generator, turbine, switch box, etc.) if flooding occurs; it determines the cut and fill required for construction; and lessens construction resources. Continue reading
Maybe you’ve never thought about it, but we are living on a spaceship called Earth. It’s a big one, with more than 7 billion people on board, traveling at about 108,000 Km/h (67,500 mph) in the solar system, while spinning in such a way that, if you are on the equator line, you are moving at more than 1,700 Km/h (1,000 mph). Amazing, isn’t it?
The ozone hole max is on Sept. 22, 2012. Credit: NASA/Goddard Space Flight Center
In our travel through the universe, we are protected from outer space by our pressurized canopy: a 12 Km-thick barrier limited by an ozone layer that acts as a shield against radiation and small asteroids. It also allows us to breathe fresh air. It’s a very complex ship, with systems designed to provide the passengers (us) with anything we need to have a very pleasant journey: food, energy, water and fun. But it was designed 4.5 billion years ago, and there were no human beings at that time asking for so much energy to cool down their houses in summer, heat them up in winter, drive a big car, fly in a plane, or produce goods.
Wind power can be a source of cheap, renewable energy when it is captured and used efficiently. From a business perspective, engineering simulation technology contributes to wind energy viability by influencing efficient generation, which can impact design, manufacturing, site selection, farm layout, deployment and operation.
The industry continually innovates to meet growing complexities for both onshore and offshore wind turbines. The combination of cost and weight reduction requirements, coupled with reliability and economic considerations, puts additional demand on engineering design and processes. The benefits of engineering simulation include better understanding of components and system-level performance, which deals with both components and systems and covers fluids, structure, electronic, acoustics, composites, transmission, seismic, fatigue and thermal analysis and design.
Sample results from a CFD simulation of wind turbine blade – shows flow stream lines. Courtesy IMPSA.