6533b825fe1ef96bd1282775
RESEARCH PRODUCT
Thermal conductivity of disperse insulation materials and their mixtures
J TimofejevsStanislavs GendelisVadims GežaI UsiļonoksAndris Jakovicssubject
Work (thermodynamics)Materials scienceConvective heat transferbusiness.industry020209 energy02 engineering and technologyComputational fluid dynamics01 natural sciences010309 opticsPipe insulationThermal conductivityThermal insulation0103 physical sciencesHeat transfer0202 electrical engineering electronic engineering information engineeringComposite materialPorositybusinessdescription
Development of new, more efficient thermal insulation materials is a key to reduction of heat losses and contribution to greenhouse gas emissions. Two innovative materials developed at Thermeko LLC are Izoprok and Izopearl. This research is devoted to experimental study of thermal insulation properties of both materials as well as their mixture. Results show that mixture of 40% Izoprok and 60% of Izopearl has lower thermal conductivity than pure materials. In this work, material thermal conductivity dependence temperature is also measured. Novel modelling approach is used to model spatial distribution of disperse insulation material. Computational fluid dynamics approach is also used to estimate role of different heat transfer phenomena in such porous mixture. Modelling results show that thermal convection plays small role in heat transfer despite large fraction of air within material pores.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-10-01 | IOP Conference Series: Materials Science and Engineering |