Results of theoretical and experimental researches related to cold deformation degree influence when rolling on strength and hydraulic characteristics of metal gauzes used for production of built-in filters’ filtering walls have been presented. An analytical dependence of gauze’s permeation coefficient on the gauze’s reduction ratio and relative lengthening when rolling has been received based on ideal porous body’s capillary model. Theoretical research results have been compared with the experimental data obtained at filtration of compressed air and mineral oil through samples of gauzes with various degree of cold deformation. Experimental dependences of gauzes’ relative lengthening and strength limit on their cold deformation degree have been presented. Results of visual researches of deformed gauzes’ surface condition have been presented. A dependence of contact spots’ square at gauzes’ surfaces on reduction ratio has been received. The analysis of contact spots’ influence on hydraulic characteristics of the multilayered mesh material used for filtering walls production has been carried out. Results of experimental studies of gauzes’ hydraulic characteristics have been processed in the form of dimensionless dependence of hydraulic resistance coefficient on filtered environment stream’s Reynolds number.

Results of experimental investigations related to filtration efficiency of aerosol particles from a dusty air flow by filtering baffles made of porous mesh materials by multiply packages of wire meshes hot rolling in vacuum have been represented. It has been found that capture of aerosol particles in these materials is mainly carried out by mechanisms of inertial capture and contact. The functional connection for particles’ fractional breakthrough coefficient from number of mesh layers in the package and its material porosity has been obtained. The analytical relation between fractional breakthrough coefficient and material porosity and Stokes number has been obtained based on experimental data processing. These studies results allow by appropriate selection of mesh number, quantity of meshes layers in the package and the package compression degree during rolling obtain a filter material with desired performance characteristics.

Results of pilot studies related to hydraulic resistance of wire woven grids with cells of micron sizes in laminar mode of a filtration have been presented. For assessment of grids hydraulic resistance the permeability coefficient value has been used. To overcome the effect of a large-scale factor on conducted researches results the dimensionless size of this parameter in the form of permeability coefficient relation to a square of the grid cell size is entered. The researches have been conducted on free-flow hydraulic installation by specially developed technique providing high precision determination of this parameter. Influence like wires interlacing at a size of dimensionless coefficient of permeability is established. Nature of influence like wires interlacing at a size of this parameter is confirmed with results of wire grids internal structure analysis. On the basis of obtained data the choice technique like grid has been developed for production of a filtering partition with optimum characteristics at the set size of filtering nominal subtlety. On the basis of porous body channel model the assessment of hydraulic resistance coefficient value of wire grids with various type of wires interlacing has been carried out. Dependence of this parameter on wires interlacing type has been established. Groundlessness of interstice’s tortuosity coefficient use at assessment of grids hydraulic resistance has been shown.

The article deals with the application of pellets as an alternative fuel for the automotive gasifier. In internal combustion engines as fuel it is possible to use producer gas generated by gasifier operating on wood waste (pellets). Cars running on wood gas (also called gas cars), though losing its elegance in appearance, but very effective in terms of environmental friendliness and can be with electric cars.

The article deals with issues of improving environmental safety in the color elements of the car body by calculating the norms of harmful emissions. Innovation is the developed technique for calculating the area of a finished surface of the parts of a car body having a complex profile. The subject of study is the operation of applying coating compositions and dried coatings. The primary means of conducting research are special programs for personal computers that simulates these operations.