Numerical simulation method for predicting heat and mass transfer rule of clothes in clothes dryer

Abstract

The invention discloses a numerical simulation method for predicting a heat and mass transfer rule of clothes in a clothes dryer. The method comprises the following steps: constructing a physical model of the clothes and the clothes dryer by adopting three-dimensional modeling software; uniformly dividing the physical model into a plurality of equidistant infinitesimal bodies along the axial direction; establishing a mathematical model of heat and mass transfer of the clothes and air in the clothes dryer for each infinitesimal body; based on the law of conservation of mass and the law of conservation of energy, establishing an equation set of heat and mass transfer of clothes in the infinitesimal body; inputting inlet parameters of the clothes dryer, and calculating the drying temperature and the moisture content of the clothes at the outlet of each infinitesimal body; and on the basis of the drying temperature and the moisture content of the clothes at the outlet of each infinitesimal body, obtaining a change curve of the drying temperature and the moisture content of the clothes in the whole drying process in the clothes dryer. Therefore, the operation condition can be changed, a change rule curve of the drying temperature and the moisture content of the clothes in the clothes dryer under different operation parameters is obtained, the method can be used for predicting the drying quality of the clothes, and proper operation parameters are provided for operation of the clothes dryer.

Description

technical field [0001] The invention relates to a method for drying clothes, in particular to a numerical simulation method for measuring heat and mass transfer laws of clothes in a clothes dryer, and belongs to the technical field of clothes drying. Background technique [0002] Traditional clothes drying is through natural drying, and its drying quality and efficiency will be seriously affected by factors such as natural environment and climate conditions. With the advancement of science and technology and the development of society, natural drying can no longer meet people's needs for high-quality life, and clothes dryers have gradually become a general-purpose appliance for drying clothes after washing. [0003] Existing dryers can be divided into steam heating dryers, electric heating dryers, vacuum heating dryers, microwave heating dryers, etc. according to the heating method, the main purpose of which is to quickly remove the moisture in clothes, Kill bacteria, there...

AI Technical Summary

Problems solved by technology

However, the unreasonable setting of the operating parameters of the dryer will cause defects such as poor drying effect, high energy consumption, and damage to the performance of clothes.

If the drying temperature is too high, it will cause the clothes made of silk and chemical fiber to shrink, wrinkle or even change the material, which will damage the quality of the clothes; if the drying temperature is too low, the clothes may not be completely dried

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