Thermal analysis and maximum heat transport of a micro flat heat pipe with axial triangle grooves

The paper addresses theoretical analysis and modeling of micro flat heat with axially triangle grooves with regard to the capillary limit. An one-dimensional steady-state model is developed, which takes into account the effect of interfacial shear stress on the heat transport performance more precisely. The outputs of this model contain axial variation of pressure difference between vapor and liquid, velocity of liquid and vapor and meniscus radius of working liquid distribution. In addition maximum heat transport capacity of MHP is calculated. The results predicted by the model are compared with the published results in literature and show good agreement. The model can be used to assist MHP structural design.