Kuznyetsov I. Experimental research and mathematical modeling of heat-transfer characteristics of pulsating heat pipes.

The dissertation is devoted to the experimental research of work and mathematical modeling pulsating heat pipes. Pulsating heat pipes (PHP) - a special class of two-phase autonomous heat-transfer devices where moving of the heat-carrier occurs due to inertial forces. As a result of experimental researches the independence of work of separate branches of PHP has been found out. Basis of the offered approximated model of action of PHP has been offered. On the basis of the analysis of the forces working in separately taken branch PHP - an elementary cell, and an assumption about cyclic of processes in it, have been appreciated duration of characteristic stages of the period of work and thermal resistance of heat transfer mechanisms corresponding to these stages. The made comparison of results of calculation on the offered model with results of experimental researches, both the author, and other researchers, at the same values of empirical factors, has shown the satisfactory qualitative and quantitative coordination that proves the given approach.