The article is devoted to the investigation of aluminium alloy plate-finned tube characteristics regarding to the heat exchange intensification. Outer thick finning, inner ribs quantity and rib shape allow to increase heat exchange efficiency. However, the most important task is finding an optimal combination of pipe geometry parameters. Seven different ribbed tube samples were ...

Low-z materials are exemplary candidates in tiling critical plasma-facing components in future fusion reactors due to their low ablation rates under intense high heat fluxes especially during abnormal and hard disruption events. Beryllium and Lithium as low-z materials show good performance as plasma-facing materials in current tokamak. Future tokamaks will exhibit long duration hard disruption...

The article considers the scientifically substantiated, systematized solar energy resource potentials of Turkmenistan. Geoinformation technological maps based on solar energy resource potentials for use in Turkmenistan have been developed, compiled. The obtained technical, economic potentials and environmental indicators from the use of power plants based on them hav...