FIELD: construction.
SUBSTANCE: determination of the thermophysical, acoustic and mechanical characteristics of wall enclosures of buildings using a non-destructive testing method widely used in building heating engineering and various industries for assessing the thermophysical, acoustic and mechanical characteristics during research under natural conditions. The implementation of the method for determining a complex of thermophysical, acoustic and mechanical characteristics is carried out on the wall enclosure of an operating building with a wall thickness of 0.6 m, research is carried out within 24 hours, heating is carried out cyclically. Temperature changes over time are measured using four sensors installed on the outer surface at a distance of 0.4…0.5 m from each other, in addition, the change in temperature over time is measured with a temperature sensor installed on the inner surface of the wall enclosure. The change in heat flux density over time is measured by a heat flux sensor installed on the outer surface of the wall enclosure. Temperature and heat flow measurement sensors are connected to the computer device. Measurements are carried out at intervals of 5…10 min. Data from studies of the surface of the wall enclosure of the building, research time, measurement interval, thickness of the wall enclosure are entered into a computer device, which, using known mathematical dependencies, determines a complex of thermophysical, acoustic and mechanical characteristics of the wall enclosure of the building.
EFFECT: increase in the accuracy of determining the thermophysical characteristics of wall enclosures of buildings in use.
1 cl, 2 dwg
