Experimental study on heat-transfer characteristics of circular water jet impinging on high-temperature stainless steel plate |
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| Affiliation: | 1. University of Science & Technology Beijing, Beijing 100083, China;2. CISDI Chongqing Iron & Steelmaking Plant Integration Co., Ltd, Chongqing 400013, China;1. Institute of Ocean Energy, Saga University, 1, Honjo-machi, Saga-shi, Saga 840-8502, Japan;2. Department of Mechanical Engineering, Saga University, 1, Honjo-machi, Saga-shi, Saga 840-8502, Japan;1. Energy Research Institute @ NTU, Nanyang Technological University, 1 Cleantech Loop, 06-04 Cleantech One, 637141, Singapore;2. School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore;1. Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230027, China;2. Nanjing Research Institute of Electronics Technology, Nanjing 210039, China |
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| Abstract: | Water jet impinging heat transfer is widely used in steel-making industry, nucleate power plants, and many other applications. In this study, an experimental study was carried out in an industry-scale facility. In this test facility, an insulating material was added to simplify the heat-transfer process. The data filter method was used to remove the noise in temperature measurements. Using inverse heat conduction analysis, surface heat flux was obtained, and the inverse heat conduction method was verified. The relative error between the calculated and measured temperature at the bottom surface of the test plate was less than 5%, and the relative error of the inner temperature of the test plate was less than 0.35%. Increasing the surface roughness provided better heat transfer in the stagnation region, which is in agreement with the reported results in the literature. By determining the surface temperature of the test plate, the boiling heat-transfer mode can be identified. |
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| Keywords: | Water jet impinging Inverse heat-conduction problem Heat flux Static surface |
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