Modern approaches to water drying in the underground transport system

Abstract

The analysis of the process of electroosmotic water depletion in soils surrounding the track structure of the underground is given. It is established that due to the fact that the structure of soils is disturbed during the construction of the underground, the electroosmotic water loss in them has its own peculiarities, therefore it is necessary to optimize the process by the criterion of specific energy inputs for mass transfer.

Designing trenchless technologies in oil and gas engineering

“…The most progressive and accessible method of pipeline restoration is the use of plastic pipe sections, which involves the opening and cutting of the end sections, the introduction of a cable into the steel pipeline by means of plugs with the supply of compressed air or water, gauging of the pipeline channel, welding of plastic pipeline sections, filling of the annular space with cement slurry and connection of the lined sections to each other. One of the laborious operations is pulling a cable using plugs, which are a package of rubber cuffs [1] with a pulling cable attachment point [13], moved to pipeline using working fluid or compressed air [15]. In recent years, instead of a pulling cable, the self-propelled fiberglass coil (COBRA) has been used.…”

Problems and conditions for using renewable energy sources in the energy supply systems of the Far North

“… Low level of technical inventory and certification of boiler rooms. There is no reliable information about the parameters and characteristics of equipment;  Insufficient equipment of meters for consumed fuel and released thermal energy;  High wear of equipment;  Unsatisfactory technical conditions of thermal networks, violation of thermal insulation and high losses of thermal energy;  A large number of boiler rooms due to the incorrect adjustment of boiler modes;  Non-compliance of the quality of the fuel with the required one, the use of non-design fuels, which increases wear of boilers and burner failures [21];  Poor automation, non-design devices of automation;  Low-quality water treatment;  non-compliance with temperature schedules;  shortage and insufficient qualification of boiler room staff [16].…”

Development of innovative technologies of the fuel and energy industry: foreign experience

“…Figure 1 presents a diagram of the US target intelligent network infrastructure, which shows interactions between the major players. The National Institute of Standards of the United States (coordinating Smart Grid and standards) refers electrical networks and technologies for their modernization to the foundation of general development [9,8,17]. In other countries, experts have come to the same conclusion.…”