The increase in number of cars creates real threat to environment, including by unfairly big consumption of material resources. Lower it the rational handling of cars taken out of service, autocomponents and materials by restoration and a reuse, and also deep processing not podlezhishchy to restoration, in secondary material resources can. In article technologies of an utizizatsiya of the autocomponents containing precious metals are considered.

The paper is concerned with mathematical modeling of heat and mass transfer in subsurface geothermal systems. Heat exchanger is driven as a vertical channel in an impermeable rock massive. The temperature of rock is driven in accord with a usual thermal conductance equation on a cylinder coordinates basis. The boundary conditions between the rock and heat exchanger are given by the equality of a thermal flow.