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May 6, 2026ThermoOpen Access

Experimental Study on Dynamic Thermal Response Characteristics in a Microchannel Evaporator

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Authors

YZYangfan ZhongZGZhijie GongTZTaocheng Zhao

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Overview

Experimental study shows flow boiling and pressure drop influence thermal-hydraulic behavior in microchannel systems, suggesting design optimizations for electronic cooling.

Key Points

  • To investigate the dynamic thermal response characteristics of microchannel evaporators in high-heat-flux applications.
  • Developed a visualization experimental platform for microchannel MPTL
  • Conducted flow boiling experiments under varying heat fluxes and flow rates
  • Measured parameters: wall temperature, fluid temperature, pressure drop, and flow patterns
  • Wall temperature increased stepwise with heat flux, reaching a critical heat flux of 814.2 W/cm2
  • Inlet temperature oscillations of 8 °C observed due to vapor backflow
  • Flow patterns transitioned from single-phase to bubbly, slug, churn, and annular flow
  • Best heat transfer performance observed under annular flow with vapor quality of 0.4–0.5

Cite This Study

Zhong et al. (2026) studied this question.

synapsesocial.com/papers/69faa28f04f884e66b5331eahttps://doi.org/10.3390/thermo6020033
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