为了解烘房内干燥介质条件（温度、相对湿度和气体流速）对挂面干燥脱水速率的影响，以及脱水速率在厚度相同，宽度不同（1 mm、2 mm和3 mm）挂面间的差异，本研究以某挂面生产企业5排60 m隧道式烘房生产线为研究对象，利用多功能便携式气候仪（Kestrel-4500），在线监测挂面干燥过程中干燥介质的温度、相对湿度和风速，每种条形挂面采集12班次（重复），在动态监测挂面干燥介质条件参数的同时，测定挂面在隧道式烘房1 m、15 m、30 m、45 m、59 m干燥距离处的含水率，分析各因素对挂面干燥脱水速率的影响。结果表明，采用基本相同的干燥工艺干燥厚度相同、宽度为1、2、3 mm的挂面，脱水速率之间无显著差异；影响挂面干燥脱水量的主要因素是相对湿度，其次是温度和风速；干燥介质各因素对挂面干燥脱水量的影响大于相同厚度、不同宽窄条形对挂面干燥脱水速率的影响。

The effects of the conditions of the drying medium such as temperature, relative humidity, and air velocity as well as varying width (1, 2, and 3 mm, with same thickness) on the drying rate of fine-dried noodle was studied using a 60-m, five-row production line in a tunnel drying room. A multifunctional, pocket weather meter (Kestrel NK-4500) was used for real-time monitoring of temperature, relative humidity, and air velocity of the medium during the drying process. Data were collected 12 times for each type of fine-dried noodle strip. While the conditions of the drying medium were monitored dynamically, the moisture content of the noodle was measured at five different drying distances (1, 15, 30, 45, and 59 m) in the tunnel drying room, and the effect of each parameter on the drying rate of the noodle was analyzed. The results showed no significant differences in the drying rates of noodle strips with different widths (1, 2, or 3 mm) and the same thickness when a similar drying process was employed. The most important factor affecting the drying rate was relative humidity, followed by temperature and air velocity. The effects of the conditions of the drying medium on noodle drying was more significant than that of the width of the noodle strip (with the same thickness).

现代农业产业技术体系建设专项（CARS-03）；公益性行业（农业）科研专项经费资助（201303070）