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Realization of system of diagnostics of states and management of technological safety in space of states is considered. The technique of definition of the center of safety on the basis of the solution of a problem of linear programming and the two-level system of decision-making on ensuring technological safety is offered. At the first level the center of safety is defined, at the second level the problem of stabilization of process in the field of safe functioning is solved.

The special features of designing a heat-pipe heat exchanger are considered. A procedure is proposed for selecting the parameters of a standardized heat pipe for heat exchangers.

Heat pipes and heat pipe exchangers are of great importance in power engineering as a means of recovering waste heat of industrial enterprises, solar energy, geothermal waters and deep soil. Heat pipes are highly effective heat transfer units for transferring thermal energy over large distances (tens of meters) with low temperature drops. Their heat transfer characteristics and reliable working for more than 10–15 yr permit the design of new systems with higher heat engineering parameters.