METHOD OF DETERMINING THERMAL CONDUCTIVITY COEFFICIENT OF LIQUID HEAT INSULATION IN NATURAL CONDITIONS

摘要

FIELD: measurement technology.;SUBSTANCE: invention relates to stationary methods for determining thermal conductivity coefficient of liquid heat-insulating materials. Developed method may be used in construction and industrial heat power engineering for analysis in natural conditions of heat conducting properties of super-thin liquid heat-insulating coatings. Method involves measurements of temperature of inner and outer surfaces of flat outer walls, as well as heat flux density, passing from heated room through analysed flat outer wall into environment, before application of liquid heat insulation on one of surfaces of flat outer wall. After application of liquid heat insulation of known thickness on one of surfaces of flat outer wall is similar measurements (taking into account layer of liquid heat insulation). At known surface temperature flat outer walls and heat flux density before and after application of liquid heat insulation of known thickness is calculated by special formula heat conductivity coefficient of liquid heat insulation.;EFFECT: high accuracy of determining thermal conductivity coefficient of liquid heat insulation in natural conditions.;1 cl, 3 dwg