The experimental study on thermal conductivity of backfill material of ground source heat pump based on iron tailings

• Published in: Energy and buildings Vol. 174; pp. 1 - 12
• Main Authors: Wan, Rong, Kong, Dequan, Kang, Jiayuan, Yin, Tianyu, Ning, Jiangfeng, Ma, Jianping
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 01.09.2018; Elsevier BV
• Subjects: Backfill; Backfill material; Concentrates (ores); Energy conservation; Engineering research; Formulas (mathematics); Functional equations; Geothermal energy; Ground source heat pump; Heat conductivity; Heat exchangers; Heat pumps; Iron; Iron ores; Iron tailings; Loess; Mine tailings; Mineral processing; Moisture content; Pumps; Solid wastes; Tailings; Thermal conductivity; Thermodynamic efficiency; Waste disposal; Waste materials; Water content; China; Loess; Thermal conductivity; Backfill material; Iron tailings; Ground source heat pump

•The thermal conductivity of iron tailings is higher than that of loess at same condition.•Mixtures of tailings and loess present higher thermal conductivity than single use of loess and iron tailings.•When loess and tailings are mixed with the mass ratio of 3:7, the thermal conductivities are highe...