Heat and Moisture Transfer in Textile Assemblies
Heat and Moisture Transfer in Textile Assemblies
复制标题
DOI：
10.1177/004051759506500403
复制
发表时间：
1995-04
影响因子：
2.3
通讯作者：
C. V. Le;N. Ly;R. Postle
中科院分区：
文献类型：
--
作者：
C. V. Le;N. Ly;R. Postle
我们研究了羊毛、棉、尼龙和涤纶织物床层在汽蒸过程中的传热传质。我们的数学模型，这是基于局部体积平均法，认为有限的固体，气体和液体的系统相之间的传热和传质速率。实验涉及各种类型的织物床的蒸汽处理。理论计算和实验工作集中在蒸汽渗透的初始阶段，其特征在于床层温度和含水量的急剧上升。研究了纤维直径、吸收率、床层孔隙率和初始回潮率对传热前沿的影响。对于干燥的羊毛或棉织物床层，汽蒸在传热前沿产生回潮率的急剧增加，伴随着床层温度的显著升高。对于尼龙或聚酯织物床，热传递前沿之后是“瞬态平衡”期，在此期间床温保持不变。
We have studied heat and mass transfer in wool, cotton, nylon, and polyester fabric beds during steaming. Our mathematical model, which is based on local volume average methods, considers the finite rates of heat and mass transfer between the solid, gaseous, and liquid phases of the system. Experiments involve the steaming of fabric beds of various types. Theoretical calculations and experimental work focus on the initial stage of steam penetration characterized by steep rises in bed temperature and moisture content. The effects of fiber diameter, absorption rate, bed porosity, and initial regain on the heat transfer front are examined. With a dry bed of wool or cotton fabric, steaming produces a sharp increase in regain at the heat transfer front, accompanied by a significant rise in the bed temperature. With a nylon or polyester fabric bed, the heat transfer front is followed by a "transient equilibrium" period during which the bed temperature remains unchanged.