Compressed air energy storage system has become one of the most promising large-scale physical energy storage technologies with its advantages of high power, high efficiency, and low cost. The centripetal turbine is the key work component of the compressed air energy storage system. Its rotor blades have geometric characteristics of small average aspect ratio and relatively large tip clearance, so it is easy to increase the tip clearance leakage loss and cause poor system efficiency. influences. Based on this, researchers from the Energy Storage Research and Development Center of the Institute of Engineering Thermophysics of the Chinese Academy of Sciences conducted a flow control study on the leakage flow field of the centripetal turbine blade tip clearance of the advanced compressed air energy storage system, and proposed a NACA0004 airfoil-based rotor blade top thickness distribution structure. The results show that the structure can improve the pressure difference distribution between the pressure surface and the suction surface of the blade, control the tip clearance leakage flow velocity, reduce the influence range of the tip clearance leakage flow, and cause flow loss without affecting the overall function of the blade. Effectively reduce, the structural strength of the rotor blades meets operating requirements at the same time. In addition, the efficiency improvement effect of this structure will also increase with the increase of the tip clearance. Within the research range, the centripetal turbine efficiency can be increased by up to 1.6%, which is obvious. The research results can provide reference and basis for the flow mechanism and control of the radial turbine tip clearance. Related research results were published as a cover paper in the Journal of Mechanical Engineering. The research work is supported by the Beijing Municipal Natural Science Foundation, the National Key Basic Research and Development Program (973 Program), the National Natural Science Foundation of China, the Beijing Municipal Science and Technology Program, and the frontier scientific research of the Chinese Academy of Sciences. Xenon Arc Lamp Aging Test Chamber A Xenon Arc Lamp Aging Test Chamber is a specialized testing equipment used to simulate the aging effects of sunlight on various materials and products. It is commonly used in industries such as automotive, aerospace, and textiles to evaluate the durability and performance of materials under prolonged exposure to sunlight. Xenon Arc Lamp Aging Test Chamber, Xenon Arc Aging Test Chamber, Xenon Lamp Aging Test Chamber Dongguan Best Instrument Technology Co., Ltd , https://www.dgbestinstrument.com
The chamber consists of a xenon arc lamp, which emits a broad spectrum of light similar to sunlight, and a sample holder where the materials or products to be tested are placed. The lamp emits high-intensity light, including ultraviolet (UV), visible, and infrared (IR) radiation, which can be adjusted to simulate different weather conditions and intensities of sunlight.
The test chamber is designed to control various parameters such as temperature, humidity, and light intensity to accurately replicate real-world conditions. It can simulate different weather conditions, such as sunlight, rain, and humidity, to assess the effects of these conditions on the materials being tested.
By subjecting materials to prolonged exposure in the Xenon Arc Lamp Aging Test Chamber, manufacturers can evaluate the effects of sunlight on color fading, material degradation, cracking, peeling, and other forms of deterioration. This information helps them make informed decisions about the selection of materials and determine the expected lifespan of their products.
Overall, the Xenon Arc Lamp Aging Test Chamber is an essential tool for quality control and product development in industries where prolonged exposure to sunlight can impact the performance and durability of materials and products.