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Experimental Methodology for Estimation of Local Heat Fluxes and Burning Rates in Steady Laminar Boundary Layer Diffusion Flames
Published on: June 1, 2016
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A general methodology to measure the light-to-heat conversion efficiency of solid materials
1Beijing Key Laboratory of Nanophotonics & Ultrafine Optoelectronic Systems, School of Materials Sciences & Engineering, Beijing Institute of Technology, 100081, Beijing, China.
Light, Science & Applications
|May 16, 2023
Summary
A new photothermal and electrothermal equivalence (PEE) method accurately measures light-to-heat conversion efficiency (LHCE) in solid materials. This versatile technique simplifies LHCE assessment for diverse materials, crucial for photothermal applications.
Area of Science:
- Materials Science
- Thermodynamics
- Nanotechnology
Background:
- Light-to-heat conversion is critical for photothermal therapy and solar energy harvesting.
- Accurate measurement of light-to-heat conversion efficiency (LHCE) is essential for developing advanced photothermal materials.
Purpose of the Study:
- To develop a novel method for accurately measuring the LHCE of solid materials.
- To establish a photothermal and electrothermal equivalence (PEE) method that simulates laser heating with electric heating.
Main Methods:
- The photothermal and electrothermal equivalence (PEE) method was employed.
- Temperature evolution during electric heating was measured to determine the heat dissipation coefficient.
- LHCE was calculated under laser heating, incorporating the heat dissipation coefficient.
Main Results:
- The PEE method allows for accurate LHCE measurement with errors within 5%.
- The method demonstrated excellent reproducibility across various material types.
- The effectiveness of underlying assumptions was validated through theoretical analysis and experimental data.
Conclusions:
- The PEE method provides a versatile and accurate approach to measure LHCE in solid materials.
- This technique is applicable to a wide range of materials, including inorganic nanocrystals, carbon-based materials, and organic materials.
- The findings support the development of advanced materials for photothermal applications.
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