Numerical study of the characteristics of heat pipes in the composition electronic equipment of spacecraft

T-shaped planar heat pipe (HP) is designed for use in the construction of spacecraft (SC). The article presents the developed mathematical model for calculating the thermal regime of the product using flat heat pipes, based on the solution of two-dimensional stationary equations of a of mass conservation, supplemented Darcy equations for fluid and vapor. For a given location heat sources and sinks on the surface of the flat heat pipe calculated distribution of pressure and mass flows for both phases of the coolant. Analysis of of working capacity of the heat pipe to the set conditions based on verifi cation of the capillary restriction