One of the main socioeconomic issue in the Rostov region is the development of residential complex building. Most of the Russian inhabitants' interests are affected by the residential complex building and this building is one of the most important sectors of economic activity in our country.

Keywords: complex building, building, Rostov region, analysis

The article is devoted to the study of heat losses when heating infiltrating air entering through existing leaks, cracks in doorways of walls, gates, and window bindings. Various methods for determining heat loss through enclosing structures are considered. As a result of the thermal imaging study, a method for determining the heat losses for heating the infiltrating air through existing leaks is proposed.

Keywords: air consumption, infiltration, heat losses, leaks, enclosing structures, air permeability, microclimate

It is known that the voids of the soil are able to absorb water at every opportunity, filling the voids of the skeleton with ground water. The article deals with the deformation of soils under compression, accompanied by the movement of water in the voids of the skeleton. The physical cause of fluid movement is the difference of hydrostatic pressures at different points in its volume. This movement is called the length of the filtration line and depends on the filtration rate. The process of filtering water from the voids of the skeleton under variable pressure will determine the course of compression of the soil skeleton in time. Taking into account that water filtration ceases at the end of deformation, it is possible, by comparing the equations, to obtain for these conditions the desired relationship between the time of complete deformation and the soil filtration coefficient.

Keywords: soil deformation, hydrostatic pressure, water-saturated state, water filtration, stresses of the soil skeleton

The use of mulcher machines is a promisingmethod of preventing and combating forest fires. Whenpreparing forest areas with the use of mulcher machines the soil is crushed altogether with the vegetation growing on the surface, roots and otherwood inclusions, while the process of interaction of the working body with the soil requires significant energy costs. The analysis of the mulcher operating modes with a working body in the form of a drum-chopper has been carried out and, as the result, the operating modes of the mulcher machine have been determined. The mulcher machine operation mode when cutting woody vegetation has been examined. A computer program has been developed to determine the rational parameters and operating modes of the mulcher machine.

Keywords: drum-chopper, combating forest fires, mulcher machine, wood vegetation cutting

In this article, a scheme of an Elevator with weather regulation is proposed and comparative results of a study of the temperature of the return pipeline with and without regulation are presented. An Elevator with weather control adjusts the temperature relative to the outside air temperature, while a heat point with a classic Elevator returns water to the main line with a constant, higher temperature. The estimated savings from the implementation of the event Elevator with weather control in the building of the administrative building No. 10 in physical terms amounted to 71.13 Gcal, and in monetary terms 124,828 thousand rubles. the payback Period of this event was 1.3 years.

Keywords: Elevator, weather control, heating system, controller, pump, valve, sensor, temperature, heat energy, tariff

In the complex of urban planning measures that contribute to a decrease in the intensity of direct solar radiation and air temperature with an increase in air humidity, an important role belongs to various elements of the green planting system. The article considers the health-improving efficiency of green spaces of typical reconstructed urban planning situations at the design stage - from the master plan to the project of detailed planning of urban areas in the southern region with a hot climate.

Keywords: urban planning, reconstruction, residential development, climate, environment, solar radiation, landscaping, landscaping, planning, microdistrict, quarter, residential yard

The authors of the work have developed a methodology that allows, on the basis of calculating the values of sanitary-hygienic and environmental efficiency, as well as the energy-intensive indicator of the processes of collecting dust and cleaning the gas-air stream from dust, to select and design a highly efficient and energy-efficient engineering dust suppression system for a drying drum operated in brick factories

Keywords: inorganic dust, dispersed system, construction industry enterprise, labor protection, environmental safety, brick production, drying drum, selection method, dust suppression systems

The authors of the work analyzed the successive stages of the process of reducing air pollution in the working area and atmospheric air, built a physical model of the process for reducing air pollution and selected the preferred options for the efficiency of dust suppression technologies in relation to the operating conditions of the drying drum of a brick factory.

Keywords: inorganic dust, dispersed system, construction industry enterprise, labor protection, environmental safety, brick production, drying drum, physical model of the process of reducing air dust pollution

In the article are considered the methodic of search of the best from the point of view of the criteria given of organizational technical decisions in the construction process. This methodic for decision of building production tasks has been worked out or is being worked out in different institutes of Russian Federation. In the paper some of possible methodic of choice on the ground of automation and mechanization means are analyzed. We should outline the three basic methods of accepting of decision about the way of performance of construction works: a) brainstorming of engineers, really involved in taking of decisions; b) analytic approach, realization of choice of the way of performance of construction and installation works by means of exploration of the problem of search of "optimal in the given conditions decision"; c) mathematic modeling, using of the technology of informational modeling of buildings (BIM) as a part of computer-aided design (CAD).

Keywords: organizational and technological solutions, building information modeling (BIM), mathematical methods, network model, construction process, technological map

The paper argues for the relevance of using volumetric modular units (VMU) in construction, especially in building temporary field camps. Despite a high installation technology intensity, the use of VMUs is said to demonstrate a low technology intensity in terms of transport operations. In order to ensure a high transport flexibility for temporary settlements, collapsible volumetric modular units are suggested as a potent solution.

Keywords: modular construction, assembly and transport adaptability, collapsible construction

The article discusses the possibility of increasing the physical and technical properties of the sands of the Usklyai field in the Republic of Mordovia from the technological modes of their enrichment. The prospect of their enrichment due to preliminary screening and washing with water is proved.

Keywords: building sand, cement concrete, mortar, particle size modulus

In the work, a microwave balanced mixer based on transmission line combinations has been designed and investigated. Two developed layouts of balanced mixers on boards of different dielectric materials are investigated. The results of measuring the parameters of the mixers showed results that are better than those of mixers built according to traditional schemes on microstrip lines.

Keywords: balanced mixer, combination of transmission lines, hybrid device, electric circuit, ring bridge, quarter-wave open loop, conversion loss, dielectric, microstrip line, slot line

On November 10, 2017, new requirements came into force that apply to lighting devices and electric lamps used in AC circuits. In connection with the newly introduced requirements, calculations of power consumption in educational institutions were carried out at different times of use of the lighting load. The purpose of the research is to determine the payback period for the implementation of LED lamps instead of fluorescent lamps for various types of premises in educational institutions. The analysis of technical characteristics of LED light sources offered on the market of the Russian Federation is carried out. Based on the results of the calculations, the payback periods were obtained for the introduction of LED lamps instead of fluorescent lamps for public premises, laboratories, training workshops, as well as lecture halls of educational institutions, with different times of use of the lighting load. This can allow already at the design stage to evaluate the effectiveness of the implementation of the selected light sources.

Keywords: light sources, led lamps, fluorescent lamps energy efficiency, electric lamps, lighting systems, educational institutions

In modern conditions, internal combustion engines (ice) are the most popular power plant for a number of transport vehicles: cars, tractors, locomotives, river and sea transport vessels. Strict requirements of modern Euro-standards to the degree of "smokiness" of exhaust gases of diesel internal combustion engines and their toxicity contribute to the emergence of a dead end situation. It is almost impossible, using obvious technical solutions, to comply with the requirements of Euro-5 and Euro-6 standards while maintaining the acceptable growth in economic costs, internal combustion engines (ice) emit a significant amount of exhaust gases into the atmosphere, which is an environmental threat. The article considers the method of SHS technology and its advantages.

Keywords: environmental threat, internal combustion engines, SHS technology, waste, synthesis, filters