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2 Journal of New Technologies in Environmental Science

2 2023

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Experimental studies of burning pellets in a burner up to 30 kW

Veremiichuk Hanna

Journal of New Technologies in Environmental Science

2023

Vol. 7, nr 1

3--10

Given the world trends in the use of biofuels of agricultural origin, Ukraine has considerable potential to develop this direction at the expense of a significant resource base. Solid biomass is mainly used for heat production in large or medium-sized district heating boilers and in domestic wood, pellet boilers, in furnaces and in fireplaces. The work is devoted to the research of burning of wood pellets and agropellet (from rape straw) with the purpose of improvement of operational and ecological indicators of household boilers with capacity up to 30 kW. Results of experimental research of burning of mentioned pellets are given on the basis of data of experiment characteristic features of temperature conditions in heating volume of boiler and burning at burning of pellets are defined.

Experimental research of heat transfer through heat-insulated wall enclosure structures

Basok Borys, Goncharuk Svitlana, Moroz Maryna, Veremiichuk Hanna

Journal of New Technologies in Environmental Science

2023

Vol. 7, nr 3

77--82

The article provides an experimental analysis of the behavior and changes in thermophysical properties of the thermal insulation systems most commonly used in construction during the entire life of the buildings. Experimental data on temperature fluctuations and distribution of heat flow density of a thermally modernized section of a wall-enclosing structure insulated by various methods for 6 years were obtained and the values of the actual coefficients of thermal conductivity of various heat-insulating materials were compared in the first approximation. The need to assess the influence of the service life on the thermophysical properties of heat-insulating materials used in the thermal modernization of buildings of various purposes is experimentally substantiated.