13.05.2024 by Aileen Sammler
How to Determine the Thermophysical Properties of Energy Storage Materials
The AIT Austrian Institute of Technology (https://www.ait.ac.at/) is Austria’s largest non-university research institution. With its seven Centers, AIT regards itself as a highly specialized research and development partner for industry, and concerns itself with the key infrastructure topics of the future. This article is a field report by Dr. Daniel Lager, Research Engineer for Sustainable Thermal Energy Systems at the Center for Energy, AIT Austrian Institute of Technology.
The thermophysics laboratory as an accredited testing laboratory (EN ISO/IEC 17025) in the Center for Energy at AIT offers measurements of thermal characteristics of materials, processes and products as well as determinations of thermophysical properties and transition parameters with its high-quality and specific laboratory infrastructure and many years of experience.
The thermophysical properties analyzed include thermal conductivity λ(T), thermal diffusivity a(T), specific heat capacity cp(T), thermal expansion ΔL(T)/L0, coefficient of thermal expansion معامل التمدد الحراري الخطي (CLTE/CTE)يصف معامل التمدد الحراري الخطي (CLTE) التغير في طول المادة كدالة لدرجة الحرارة.CTEα(T), and density ρ(T) in a temperature range from -180°C to 1600°C. In addition to the thermophysical properties, simultaneous thermal analysis with infrared and mass spectrometry is used to determine characteristic temperatures, enthalpy differences and mass changes as well as to identify evolved gases.
Read the latest field report by Dr. Daniel Lager, Research Engineer for Sustainable Thermal Energy Systems at the Center for Energy, AIT Austrian Institute of Technology, about different measurement methodologies for thermophysical properties of energy storage materials.
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