In-situ experimental study on hydro-borehole technology application to improve the hard coal excavating techniques in coal mine.

The hydro-mining technology is considered as a promising method of bituminous coal excavation. The paper presents the results of the in-situ experimental campaign and modelling of hydro-cutting technology application. The proposed innovative technology was tested in terms of the effects of the distance between the outlet of water from the nozzle and a sidewall, pressure of the water jet, as well as the type of a nozzle on hydro-mining effectiveness.

CFD Numerical Modelling of a PV-TEG Hybrid System Cooled by Air Heat Sink Coupled with a Single-Phase Inverter.

This study presents full transient, three-dimensional numerical models of a PV-TEG hybrid module coupled with single-phase inverter by co-simulation. The influence of factors, such as wind speed, solar radiation intensity, or ambient temperature on the PV-TEG system, was also examined. The numerical model was implemented using Ansys software which accounted the phenomena of Thomson, Seebeck, and Joule's heat place on the TEG system.

Estimation of Dense Plasma Temperature Formed under Shock Wave Cumulation.

The research was carried out by means of implosion plasma generators with conical and hemispherical compression chambers to conduct a quantitative assessment of the boundary temperature of super dense plasma jets. It was proved experimentally that nuclear transformations in metals are caused by the impact of super dense plasma jets (11, ..