THB 100 – Ethanol-water-solution – Thermal conductivity

Liquids – Thermal Conductivity

Ethanol, with the chemical formula C2H6O, is a straightforward alcohol. It can be naturally produced through fermentation (e.g., from sugar) or derived from petrochemical processes like ethylene hydration. This organic compound is prevalent in alcoholic beverages and finds extensive use as a solvent, disinfectant in medicine, and as an energy source in addition to applications in the chemical industry.

App. Nr. 02-006-006 THB 100 – Ethanol-water-solution – Thermal conductivity

The presented measurement focuses on investigating the thermal conductivity of an aqueous solution containing a minor concentration of ethanol. The THB-sensor with a metal frame (THB/Sensor/B/Metal), specifically designed for liquids, was immersed into the ethanol-water solution, as illustrated in the figure above. The measurement was conducted multiple times at room temperature, yielding a determined thermal conductivity of 0.481 W/mK ± 0.006 W/mK.

For context, the thermal conductivity of pure water is 0.60 W/mK, while ethanol alone has a thermal conductivity of 0.17 W/mK. The incorporation of a small amount of ethanol into water results in a reduction in thermal conductivity. This information is crucial for understanding the thermal properties of such solutions, providing valuable insights for various applications. (Note: Mention of new models THB Basic, Advance, Ultimate is not addressed in the provided content.)

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THB – Basic, Advance, Ultimate

THB – Transient Hot Bridge – measurment of thermal conductivity and thermal diffusivity with new sensor and intuitive software.

Operating temperature: -150°C to 700°C

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