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首页> 外文期刊>Journal of enhanced heat transfer >NUMERICAL SIMULATION OF HEAT TRANSFER PERFORMANCE ENHANCEMENT OF COOLING WATER JACKET USED IN THE CARBON INDUSTRY
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NUMERICAL SIMULATION OF HEAT TRANSFER PERFORMANCE ENHANCEMENT OF COOLING WATER JACKET USED IN THE CARBON INDUSTRY

机译：碳纤维工业冷却水套传热性能增强的数值模拟

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摘要

In the cooling process of high-temperature calcined petroleum coke (CPC) inside a cooling water jacket, some problems such as uneven heat transfer, difficult heat conduction, and easy oxidation seriously affect the quality of CPC. Based on the computational fluid dynamics, this paper performed heat transfer analysis and numerical simulation for the cooling water jacket on both the water side and coke side, studied the evolutions of the internal temperature field, and obtained the nonuniform temperature field. Meanwhile, in order to enhance the heat transfer performance of the cooling water jacket, one modified measure was put forward by installing heat exchange tubes inside the cooling water jacket. The simulation results manifested that the modified measure of the cooling water jacket can enhance heat transfer performance significantly. Compared with the initial model, the outlet average temperature of CPC reduces by 293.89 K, and the cooling efficiency of the cooling water jacket enhances by 30.84%. Additionally, the temperature uniformity coefficient on the outlet cross section increases by 13.40%, which demonstrates that the modified structure has superior relative heat transfer performance.
机译：在冷却水套内高温煅烧石油焦（CPC）的冷却过程中，传热不均匀，导热困难，易氧化等问题严重影响了CPC的质量。基于计算流体动力学，本文对水侧和焦炭侧的冷却水套进行了传热分析和数值模拟，研究了内部温度场的演变，并获得了非均匀温度场。同时，为了提高冷却水套的传热性能，提出了一种改进的措施，即在冷却水套内安装换热管。仿真结果表明，改进的冷却水套措施可以显着提高换热性能。与初始模型相比，CPC的出口平均温度降低了293.89 K，冷却水套的冷却效率提高了30.84％。另外，出口横截面上的温度均匀性系数提高了13.40％，这表明改性结构具有优良的相对传热性能。

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