置换通风在船舶会议室内的适用性研究  

Study on Applicability of Displacement Ventilation in Conference Room on Board

作　　者：赵忠超[1,2] 云龙 秦伯进 杨兴林[2] 

机构地区：[1]江苏兆胜空调有限公司,江苏泰兴225441 [2]江苏科技大学能源与动力工程学院,江苏镇江212003

出　　处：《船舶标准化工程师》2015年第2期40-46,共7页Ship Standardization Engineer

基　　金：江苏省产学研联合创新基金(BY2013066-09)

摘　　要：室内空气品质的优劣直接影响人员的工作效率。文中以某船舶会议室作为研究对象,建立其非空态条件下采用置换通风方式的船舶舱室内气流组织数学模型,通过求解RNGκ-ε紊流方程,获得了采用置换通风方式的船舶会议室内空气品质分布规律。结果表明,结合舱室内热源的分布特征,利用热源产生的浮升力作用,合理布置送回风口的位置,船舶会议室人员活动区平均风速在0.15m/s以下、01~1.1m高度内垂直温差小于1℃,能量利用率大于1,获得良好的气流组织和热舒适性,有效地提高了船舶会议室的空气品质。The indoor air quality directly affects the work efficiency of personnel. Taking the conference room of a ship as the object, the paper establish the mathematical model of onboard indoor airflow organization with adopting the displacement ventilation under the condition of occupied person. The indoor air quality distribution rule of the onboard conference room with displacement ventilation is obtained by solving the RNGκ？εturbulence equation. By properly arranging the positions of inlet and outlet according to the distribution features of the indoor heat sources and the buoyancy effect generated by the indoor heat sources, the results show that the average air velocity is below 0.15m/s around the occupied area and the temperature difference from 0.1m to 1.1m in vertical direction is below 1 .℃The energy efficiency is above 1. The good airflow organization and heat comfortableness are gained. The indoor air quality in the onboard conference room is effectively enhanced.

关 键 词：置换通风 船舶会议室 计算流体力学 数值分析 

分 类 号：U664.86[交通运输工程—船舶及航道工程]