Dear Mr. Zadeh, Please check my research article here regarding the effect of Al2O3- ZnO-H2O nanofluid on the electrical, thermal, and overall performance of a PVT hybrid system:

Younis, A., Elsarrag, E., Alhorr, Y., and Onsa, M. "The Influence of Al2O3- ZnO-H2O Nanofluid on the Thermodynamic Performance of Photovoltaic- Thermal Hybrid Solar Collector System." Innovative Energy Research 7(1) (2018) 1-8

Hello Mr. Zadeh,

from my experience the change of thermal conductivity as a function f(T) mostly can be described well by polynomials of order n (at least for standard fluids). Extrapolating your experimental measurements according to the behaviour of f(T) to the limits of your simulation temperatures might give reasonable results. With this technique you surely implement some uncertainties but, I personally don't see a more precise way in your case.

Maybe this simple method helps.

Best regards

David

Hello Mr. Zadeh,

From my experience

Ø Thermal conductivity instruments need to navigate the broad range of solutions and device configurations available. When you request more info from C-Therm,

· The Trident Product Brochure, where you’ll learn about the benefits of easy plug & play testing with Trident’s 3-in-1 sensor.

· The Thermal Conductivity Method Selection Whitepaper, where you’ll discover the best method for measuring the thermal conductivity of your samples using Trident’s multiple industry-standard testing options.

Ø Conductivity sensors and transmitters are used in many industries such as food & beverage, chemicals, life sciences, pharma, water and power. The sensor selection depends on the application and the conductivity range. To measure low conductivities in pure and ultrapure water, choose conductive sensors. Use toroidal sensors in media with high conductivity (e.g. milk, beer, bases, acids, brine) and apply 4-electrode sensors where a wide measuring range is required (e.g. phase separation).