针对船舶机舱发电机组、锅炉等高负荷热源,研究采用空气射流通风技术进行热发散控制。结合机舱的现场条件,建立机舱热发散控制的物理模型,选用计算流体力学的标准k-ε模型作为数值模拟计算模型。采用正交试验法对稳态条件下的送风速度、喷嘴高度、送风温度、送风湿度、排风速度等因素进行了模拟试验分析。试验得出不同通风因素对热发散控制效果影响的显著性大小排序:送风温度、送风速度、喷嘴高度、排风速度。结合试验分析结果提出了热发散通风控制的优方案和考虑节能后再优化调整方案。
For the high load heat of generator and boiler in ship engine room, considering the air jet ventilation technology to control heat dissipation effectively. Combined with the actual conditions of the engine room, a physical model for controlling heat dissipation were established, selecting criteria k-ε model as the numerical model based on computational fluid dynamics. The factors that influence the average temperature, including air velocity, nozzle height, air temperature, air humidity, ventilation rate, were numerically analyzed in steady state condition by orthogonal test. The test on heat dissipation effects of different ventilation parameters reflected significant size: air temperature, air speed, nozzle height, exhaust velocity. Through analyzing the test results, the paper provided optimal combinations of heat dissipation and adjusting optimal combination condition after considering energy-saving.
2016,38(5): 82-86 收稿日期：2015-10-12
DOI：10.3404/j.issn.1672-7619.2016.05.018
分类号：U663.8
作者简介：李敬仁(1991-),男,硕士,研究方向为工业通风污染控制与船舶机舱通风冷却仿真。
参考文献：
[1] 邵飞.空气射流通风技术在舰船机舱通风系统中的应用[J].中国船舶研究, 2007, 2(4):47-50.
[2] 中国船舶工业总公司.船舶设计实用手册:轮机分册[M].北京:国防工业出版社, 1999:15-18.
[3] GUYONNAUD L, SOLLIEC C, DE VIREL M D, et al. Design of air curtains used for area confinement in tunnels[J]. Experiments in Fluids, 2000, 28(4):377-384.
[4] 张师帅.计算流体动力学及其应用-CFD软件的原理与应用[M]. 武汉:华中科技大学出版社, 2011:85-86.
[5] 胡荣章,龚辉,刘罡,等.街区建筑物对城市交通隧道废气排放的影响[J]. 安全与环境学报, 2007, 7(3):30-34.
[6] 索文超,王宪成.船艇机舱空气流场数值模拟研究[J].船舶科学技术, 2008, 30(1):149-152.
[7] 赫伟建,王迎新,段树林,等.船舶机舱空间温度场速度场的数值模拟[J]. 大连海事大学学报, 2005, 31(1):39-41.
[8] 邱轶兵.试验设计与数据处理[M].合肥:中国科学技术大学出版社, 2008:18-26.
