Effects of moisture content on thermal conductivity of thermal insulation materials

International Scientific-Technical Conference on Innovative Engineering Technologies, Equipment and Materials 2018

材料科学;工业技术（总论）

Gusyachkin, A.M.^1 ; Sabitov, L.S.^2 ; Khakimova, A.M.^1 ; Hayrullin, A.R.^1

Kazan State Power Engineering University, 51 Krasnoselskaya street, Kazan

420066, Russia^1

Kazan Federal University, 18 Kremlyovskaya street, Kazan

420008, Russia^2

关键词: Guarded hot plates;    In-pipe;    Insulation materials;    Rock wool;    Thermal insulation materials;    Thermal loss;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/570/1/012029/pdf
DOI  :  10.1088/1757-899X/570/1/012029

来源: IOP

【 摘 要 】

Insulation materials play an important role in district heating pipeline networks. Thermal losses in pipe insulation systems depend on the thermal conductivity of insulation materials. The thermal conductivity of the insulation materials is influenced by the temperature and moisture content. In this paper the effect of moisture content on the thermal conductivity of rock wool produced by different manufacturers was considered. Experimental studies were performed using the standard guarded hot plate (GHP) method. Higher thermal conductivity is always associated with higher moisture content for all investigated samples.