Abstract
Regenerative cooling system is thought to be an effective and practical solution to better thermal management for high heat flux applications. In this paper, the potential of nanofluids as regenerative coolants at supercritical pressures was evaluated. Two-step method was applied to prepare Al<sub>2</sub>O<sub>3</sub>-kerosene and Fe<sub>3</sub>O<sub>4</sub>-kerosene nanofluids.
Highlights
Effective cooling techniques are of great importance in high heat flux applications, such as large parallel computer systems and aircraft combustion chambers
The mass flow rate is an important factor that influences the heat transfer performance at supercritical pressures, as the turbulence and boundary layer will be affected by the varying flow rate
Figures show that the local wall temperature basically increases along the tube length at different mass flow rate, while the heat transfer coefficient first increases to a maximum value and continuously decreases
Summary
Effective cooling techniques are of great importance in high heat flux applications, such as large parallel computer systems and aircraft combustion chambers. Figures show that the local wall temperature basically increases along the tube length at different mass flow rate, while the heat transfer coefficient first increases to a maximum value and continuously decreases.
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