This work reports the use of tubular solar dryer for drying the Mexican mint (Plectranthus amboinicus) under various mass of leaves. Experiments were carried out in a tubular solar dryer under natural convection mode with direct solar heating. Parameters such as the temperature of dryer tray, relative humidity, and moisture content were recorded for 0.25, 0.5, 0.75 and 1 kg of P. amboinicus leaves placed in the dryer tray. Results showed that under an increased mass of P. amboinicus leaves in the tray the parameters such as dryer tray temperature are reduced, and the moisture content available with 0.75 kg of P. amboinicus leaves is higher as compared to 0.25 kg of P. amboinicus leaves. Also, it is found that the relative humidity inside the drying chamber is higher with increased mass of P. amboinicus leaves in the drying chamber.

这项工作报告了使用管式太阳能干燥机在各种叶子下干燥墨西哥薄荷 (Plectranthus amboinicus)。在具有直接太阳能加热的自然对流模式下在管状太阳能干燥器中进行实验。对放置在干燥器托盘中的0.25、0.5、0.75和 1 千克羊蹄草叶记录了干燥器托盘的温度、相对湿度和水分含量等参数。结果表明，将增加的质量下P.香叶托盘中的参数，如干燥器托盘温度降低，而且可提供0.75公斤的水分含量P.香相比0.25千克的叶子是更高P.香树叶。此外，还发现干燥室内的相对湿度随着干燥室内P. amboinicus叶子质量的增加而升高。