Literature Review of Coupled Temperature and Moisture Transfer in Concrete Structure

Abstract

Concrete is a typical heterogeneous porous media material, but the influence of the heterogeneity of concrete on coupled temperature and moisture transfer is rarely involved in the present numerical methods. Thus, the research direction on the coupled temperature and moisture transfer with damage evolution of the heterogeneous material will be greatly helpful to understand the coupling mechanism. This paper firstly presented the purpose of the study on the coupled temperature and moisture transfer in concrete, and then offered a literature review of the development of this theory. To launch the elaboration of this topic, three relative important parts were presented separately in this paper. (1)The comprehensive theory of porous media heat and mass transfer. (2)The development of the coupled temperature and moisture transfer on mesoscopic scale. (3) The numerical simulation methods of the coupled temperature and moisture transfer. And then the influence of damage on the parameters of temperature field and humidity field was pointed out, which would be a valuable research field.

Optimization of Drying Process of Lithium Battery Pole Piece Based on Simulation Technology

“…By calculating the actual drying amount of the pole piece in each temperature zone, the drying ratio of the pole piece in each temperature zone can be calculated, and the drying curve can be made. The drying curve can be changed by adjusting the drying parameters, and the adhesion and resistance of the pole piece corresponding to different drying curves can be tested to find the most suitable drying parameters [7]. In the test, the known parameters are fresh air speed V, fresh air temperature T, fresh air duct cross-sectional area S, and exhaust NMP concentration n%.…”