摘要
目的研究暖风机在不同布置情况下对候车厅内环境影响规律,以找出最优布置方案.方法采用CFD模拟测试暖风机不同工况,通过Airpak模拟单、双侧布置暖风机下温度场、风速分布、二氧化碳分布情况,对模拟结果进行比较分析.结果暖风机的布置及送风参数对气流变化影响较小,主要体现在对室内温度的影响上.提高暖风机的送风风速对候车厅内低温区域温度提升有限,同时导致近暖风机处的局部风速大幅增加.故暖风机单侧布置时,最佳送风风量应控制在4 500 m3/h左右.结论相比单侧布置暖风机,双侧布置能有效改善远离暖风机侧温度过低的现象,同时对候车厅内气流及二氧化碳分布影响较小.在有条件情况下,应选择双侧布置暖风机,更利于候车厅内环境参数的调控.
Studying the influences of warm air blowers in different arranging ways on the environment of waiting rooms so as to find out the best arranging ways. Simulating different working ways of warm air blowers by CFD; calculating the temperature field and distribution of air velocity and carbon dioxide when warm air blowers are one-sidedly or two-sidedly arranged by Airpak; analyzing the results by comparing two working ways. The arranging way and the air parameter of warm air blowers have slight influences on the air change and they mainly affect the interior temperature.An increase in air velocity of warm air blowers fails to make the low-temperature areas of waiting rooms as warm enough as it is expected,and meanwhile it leads to greater air velocity around the blowers. Therefore,about 4 500 m3/ h is recommended as the best air volume when warm air blow-ers are one-sidedly arranged. Compared with one-sided arrangements,two-sided arrangements can greatly increase the temperature where it is far from the warm air blowers and slightly influence distribution of air and carbon dioxide. Two-sided arrangements of warm air blowers are more suitable to be chosen if possible to benefit the control of the environment parameter of waiting rooms.
出处
《沈阳建筑大学学报（自然科学版）》
CAS
北大核心
2016年第2期306-314,共9页
Journal of Shenyang Jianzhu University：Natural Science
基金
国家自然科学基金项目(51378138)
辽宁省教育厅科学研究项目(L2015245)
关键词
送风风速
温度场
风速分布
二氧化碳分布
air velocity
temperature field
distribution of air velocity
distribution of carbon dioxide
