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The study of thermophysical properties of materials at high temperatures and vibrations

The insulation of such elements of power stations as combined-cycle gas turbines, furnaces and boilers, steam headers, heat generators, lids of hot water and steam boilers, waste-heat recovery units, sodium heat pipes are currently made of thermic insulation based on mineral and basalt fiber. The operating temperature of such materials is limited to 600 ° C.

When the operating temperature is getting higher, (that is a priority because the number of commissioned effective gas turbines is constantly increasing) a nucleating process starts in mineral fibers, material shrinkage occurs, and thermal conductivity increases by 3-4 times.

The systematic research of the processes occurring in thermal insulating materials at high temperatures is conducted only by the group of prof. Y. Yue (Aalborg University, Denmark) with the support of Rockwool Corporation (Denmark). However, the published findings, as a result of trade secrets, are selective. The nature of nucleating process at elevated vibration has not been studied at all.

S.I. Gutnikov, PhD, Moscow State University named after M.V. Lomonosov, Senior Researcher, Department of Chemistry, Moscow.

Y.V. Pavlov, PhD, Moscow State University named after M.V. Lomonosov, Research Associate, Department of Chemistry, Moscow.

K.L. Kuzmin, a post-graduate student, Moscow State University named after M.V. Lomonosov, Technician, Department of Chemistry, Moscow.

E.S. Zhukovskaya, a post-graduate student, Moscow State University named after M.V. Lomonosov, Technician, Department of Chemistry, Moscow.

About Olga Yurchenko

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