SELECTING LIFT COLUMN DROP DEPTH AND DIAMETER TO PROVIDE LIQUID EXTRACTION CONDITIONS
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STUDY OF HEAT AND ENERGY PARAMETERS OF A VAPOR- COMPRESSION HEAT PUMP
<p>In this research work, the energy efficiency of the introduction of heat pumps into the energy supply systems of buildings in the conditions of Karshi city was evaluated based on the thermodynamic cycle of the heat pump operating on the basis of a low-tempe...
COOPERATION OF FRUIT AND VEGETABLE PRODUCTS AND WAYS TO IMPROVE ITS EFFICIENCY
<p>The problem of increasing its economic efficiency based on the establishment of a fruit and vegetable cluster cooperation system in current agricultural practice is the economic efficiency of fruit and vegetable cooperation, taking into account their wide u...
PROBLEMS OF HYDRAULIC CALCULATION OF EARTHEN CHANNELS
<p>The main task of the design of earthen channels is to calculate the dimensions of the stable channel shape in which irreversible deformation of the channel cross-section does not occur. This article provides information on calculating the hydraulic paramete...
EFFICIENCY OF HEAT UTILIZATION OF WASTEWATER OF “SHURTAN GAS-CHEMICAL COMPLEX” ENTERPRISE
<p>. In the world, there are strong trends in the use of renewable energy sources (RES) in the creation of energy-efficient systems of management of heat and fuel-energy resources.<br>In this article, by utilizing the heat of secondary energy sources (wastewat...
ANALYSIS OF THE CURRENT STATE OF ALTERNATIVE FUEL FROM BIOMASS
<p>The fact that the world's energy resources are declining and their prices are regularly rising shows the importance of using energy efficient technologies for their rational use in the future. The authors analyzed the results of scientific research on the e...
DEVELOPMENT OF METHODS FOR SELECTING THE OPTIMAL COMPOSITION OF EQUIPMENT IN POWER PLANTS OPERATING WITH RENEWABLE ENERGY RESOURCES
<p>In modern conditions of intensive increasing the electricity consumption in all spheres<br>of human activity, limited hydrocarbon fuel reserves, as well as the severity of environmental<br>problems in the energy sector require the development and implementa...
JUSTIFICATION OF TECHNOLOGY FOR CONDUCTING THERMOMETRIC STUDIES OF GAS WELLS
<p>Increasing hydrocarbon productivity through the rational use of gas and gas<br>condensate fields is becoming urgent. By conducting a thermometric study on gas wells based on the<br>obtained data on temperature distribution, it will be possible to solve such...
ANALYSIS OF RISK, EFFECTIVENESS AND QUALITY ASSESSMENT OF THE USE OF OUTSOURCING SERVICES IN PRESCHOOL EDUCATIONAL ORGANIZATIONS
<p>The problem of evaluating the risk, efficiency and quality of use in preschool educational organizations, including the goals and tasks of outsourcing services, is one of the most urgent issues at the moment, because feeding, teaching and various activities...
ANALYSIS OF MATHEMATICAL MODELS OF UNDERGROUND HEAT EXCHANGE DEVICES
<p>Geothermal energy sources are widely used as a renewable energy source in building heating and cooling systems. The thermal characteristics of underground heat exchange devices are crucial for the efficient operation of geothermal heat pumps (GHPs). This ar...
METHODOLOGY FOR CALCULATING THE POTENTIAL OF SECONDARY HEAT ENERGY RESOURCES IN THE SHORTAN GAS-CHEMICAL COMPLEX
<p>Development of technical solutions for increasing energy efficiency in gas processing enterprises, determining the potential of secondary energy resources and using them in the energy balance of the enterprise are urgent issues. The energy balance analysis ...
CALCULATION OF HEAT LOSS THROUGH CHAMBER WALLS OF MULTIFUNCTIONAL HELIOTECHNICAL DEVICE
<p>The heat requirement of an egg incubator working with solar energy is studied in the<br>article. In the determination, the following were made: there is a steady-state condition, onedimensional<br>heat flow prevails, the incubator materials have a constant ...
APPLICATION OF ADAPTIVE FILTERS IN MODERN SIMULATION OF DYNAMIC CONTROL OBJECTS
<p>The article discusses the use of adaptive filters in modern modeling of dynamic control objects. Presents a type of adaptive filtering of digital signal processing in modern electronic equipment. Adaptive signal processing, which refers to adaptive filterin...
STRATIFIED FLOW OF GAS-LIQUID MIXTURE IN HORIZONTAL PIPES
<p>Research in the field of hydrodynamic calculations of the flow of gas-liquid mixtures in pipelines has been carried out by many researchers. They theoretically and experimentally studied various hydraulic and hydrodynamic features of gas-liquid flows. Howev...
CALCULATION OF A WATER HAMMER ABSORBER WITH PRESSURE INCREASE
<p>The аrticle is devoted to the cаlculаtion of a hydrаulic shock аbsorber with а diаphrаgm installed at the end of а pressure pipeline. Theoreticаl solutions of hyperbolic type wave equations for а polytropic process (n = 1.20) аre proposed.<br>To...
ANALYSIS OF ENERGY-EFFICIENT OPERATING MODES AND PARAMETERS OF CASCADE PUMPING STATIONS
<p>The article provides an analysis of energy-efficient operating modes and parameters of cascade pumping stations.<br>The operating mode of pump stations in irrigation systems is determined by a number of parameters, including structural design, technological...
DETERMINING THE ECONOMIC EFFICIENCY OF A PHOTOVOLTAIC PUMPING UNIT
<p>The article discusses the issues of the efficiency of solar energy supply to electric motors of pumping units used in irrigation systems in different countries of the world. A methodology for calculating modern indicators of the economic efficiency of photo...
COMPARISON OF NEW GENERATION PHOTOTHERMAL BATTERIES, EFFECTIVELY OPERATING IN DRY CLIMATES IN SPRING AND SUMMER SEASONS
<p>This article compares the parameters obtained in spring and summer seasons of photothermal battery (PV) and photoelectric battery (PVT) with a new type of cooling system. Solar radiation on the surface of the PVT increased the current density with the help ...
UPGRADE OF SOLAR INDIRECT DRYING PLANT WITH NATURAL VENTILATION
<p>This article presents the results of research work on a modernized solar drying plant with indirect heat pipes and natural air ventilation. The dependences of temperatures, moisture content of the steam-air mixture and on the surface of the dried grapes, th...
CALCULATION OF HEAT LOSS THROUGH CHAMBER WALLS OF MULTIFUNCTIONAL HELIOTECHNICAL DEVICE
<p>The heat requirement of an egg incubator working with solar energy is studied in the article. In the determination, the following were made: there is a steady-state condition, one-dimensional heat flow prevails, the incubator materials have a constant therm...
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