In this article we consider the results of studying the problems and prospects of using information technologies to ensure the introduction of new innovative approaches in hydroecology and hydropower, the creation of GIS (GIS-geographic information systems) for hydroecological and hydro-technical monitoring, and also as a visual material for students studying the use of information systems in the development of environmentally acceptable modes of operation of hydraulic structures. The article was devoted to an actual theme - GIS-systems creation for hydro ecological monitoring as tool for support the information systems of the Aral Sea basin and optimisation models at development of ecologically applicable modes of exploitation of hydro technical buildings. It is possible and useful to use association of outputs from various scientific researches in one GIS-database as universal tool for modeling. As example of such approach can be consider as one interconnected system which combination results of work: - System of water-salt balances in all rivers of Uzbekistan. - System of digital maps and schemes that can be used in the development of environmentally acceptable modes of operation of hydraulic and hydropower facilities in Uzbekistan. - The Aral Sea basin monitoring systems (ASBMS) as a digital system of hydroecological monitoring of quality of surface waters on basis ArcView.

The article touches upon the urgent problem of deploying secondary energy resources in the system of transportation and distribution of natural gas. Excessive gas pressure as the main component of secondary energy resources for technological processes is practically not used at gas distribution stations, where throttle devices are deployed. The proposal to utilize excess gas pressure in turboexpander both at gas distribution stations and at compressor stations of gas pipelines without preheating has not yet been widely applied, and therefore the replacement of throttle devices with turboexpander units will be determined by energy and economic efficiency. One of the effective technologies to reduce the consumption of fuel and energy resources is the expander-generator technology. In combination with heat pump units, expander-generator units allow you to create highly efficient energy-generating complexes that can generate electricity without burning fuel. The possibility of generating electricity without burning fuel by expanding high-pressure natural gas at gas distribution stations is being considered. An analytical dependence has been obtained to determine the proportion of electric energy supplied to the electric network based on the expander-generator unit in the gas supply system.

The article discusses the possibilities of generating electricity without burning fuel by expanding high-pressure natural gas at gas distribution stations with lower specific capital costs. It is proposed to reduce the pressure of the transported natural gas using expander-generator units instead of traditional throttle devices.

The article touches upon the actual problem of the use of secondary energy resources in the transport and distribution of natural gas. Excess gas pressure as the main component of secondary energy resources for technological processes is practically not used at gas distribution stations, where throttling devices are used. The proposal to use excess gas pressure in turboexpanders both at gas distribution stations and at compressor stations of main gas pipelines without preheating has not yet found widespread use, and therefore the replacement of throttling devices with turboexpander units will be determined by energy and economic efficiency. Expander-generator technology is one of the effective technologies that allows to reduce the consumption of fuel and energy resources. In combination with heat pump units, expandergenerator units make it possible to create highly efficient power generating complexes that are capable of generating electricity without burning fuel. The possibility of using heat pumps is considered, in which air is used as a working medium, the purpose of which is to increase the temperature potential of heat to ensure the possibility of heat exchange when transferring this heat to the heated medium. An analytical dependence of the electric power of the heat pump installation on the difference between the total power consumption of the compressor and the power of the air turbine is obtained.

The article discusses the results of the study of the competitive anticorrosive coatings synthesis based on gossypol resin and phosphoric acid. The resistant modified anticorrosive coatings are presented as a result of the gossypol resin, 3-chloroxypropane, monoethanolamine and diethanolamine interaction. Synthesized anticorrosive compositions based on gossypol resin and 3-chloroxypropane, which mechanism is characterized not only by the barrier type of protection, but also by the acquisition of rust modifying properties with improved physical mechanical and technological indicators of high adhesive properties and aging resistance, as well as a wide temperature range of plasticity, increased heat and frost resistance have been obtained.