NDLI: Numerical Simulation of Convective Heat Transfer Characteristics of Aviation Kerosene Inside Elliptical Tubes Under Supercritical Pressure

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Zhang, Jingzhi Zhou, Naixiang Lin, Jinpin Lin, Han Li, Wei
Copyright Year	2016
Abstract	Heat transfer characteristics of aviation kerosene were investigated numerically using a three-dimensional model. The influence of the ratio of longer axis to short axis of elliptical tubes (r), inlet Reynolds number (Re), and pressure (P) of kerosene on local heat transfer characteristics were discussed in detail. The results indicate that the heat transfer coefficient (h), wall temperature (Tw), and bulk fluid temperature (Tb) increase along Z axis direction from inlet to outlet when P=4Mpa. h increases with increasing r and Re, while Tw decreases with increasing Re and r. Tb decreases with increasing Re and remains stable for a varying r. For P=3Mpa, the deterioration of heat transfer occurs near the outlet of computational geometry, where the temperature of near wall region fluid exceeds the critical point and specific heat decrease dramatically. A correlation for heat transfer coefficient of aviation kerosene at supercritical pressure inside elliptical tubes is proposed and compared with the present simulation data. It is shown that this correlation can predict the simulation data within an ±15% error band. Compared with circular tubes, elliptical tubes can enhance the heat transfer effect and decrease the wall temperature, thus enhance the security of the operating system.
Sponsorship	Heat Transfer Division
File Format	PDF
ISBN	9780791849668
DOI	10.1115/MNHMT2016-6608
Volume Number	Volume 2: Micro/Nano-Thermal Manufacturing and Materials Processing; Boiling, Quenching and Condensation Heat Transfer on Engineered Surfaces; Computational Methods in Micro/Nanoscale Transport; Heat and Mass Transfer in Small Scale; Micro/Miniature Multi-Phase Devices; Biomedical Applications of Micro/Nanoscale Transport; Measurement Techniques and Thermophysical Properties in Micro/Nanoscale; Posters
Conference Proceedings	ASME 2016 5th International Conference on Micro/Nanoscale Heat and Mass Transfer
Language	English
Publisher Date	2016-01-04
Publisher Place	Biopolis, Singapore
Access Restriction	Subscribed
Subject Keyword	Temperature Aviation Computer simulation Three-dimensional models Reynolds number Security Pressure Convection Wall temperature Computational geometry Errors Specific heat Fluids Simulation Heat transfer coefficients Heat transfer
Content Type	Text
Resource Type	Article

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