Heat Transfer Intensification of Steam for the Cooling Process in 90° Rib Rectangular Channels

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Heat Transfer Intensification of Steam for the Cooling Process in 90° Rib Rectangular Channels

更新时间：2025-07-09

- Heat Transfer Intensification of Steam for the Cooling Process in 90° Rib Rectangular Channels
- Vol. 46, Issue 9, Pages: 6-11(2012)
- 作者机构：
  
  西安交通大学机械制造系统工程国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK47
- Online First：10 September 2012，
  
  Published：2012
- 稿件说明：
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Heat Transfer Intensification of Steam for the Cooling Process in 90° Rib Rectangular Channels[J]. 2012, 46(9): 6-11.
DOI：

Heat Transfer Intensification of Steam for the Cooling Process in 90° Rib Rectangular Channels[J]. 2012, 46(9): 6-11. DOI：

摘要

在蒸汽强化换热试验研究的基础上

采用SSG雷诺应力模型

通过数值方法求解了三维定常雷诺时均Navier-Stokes方程

同时系统地分析了雷诺数、温度和压力对蒸汽在90°矩形带肋通道中流动和换热的影响.结果表明:温度和压力的变化强烈地影响着带肋通道中蒸汽的强化换热特性

蒸汽的摩擦因子和换热系数随着温度的升高而减小

随着压力的升高而增大

在适中的Re、较低的蒸汽温度和中等压力下

蒸汽流动可以获得最佳的强化换热性能; 蒸汽和空气的换热系数比与温度和压力有关

但与Re无关.

Abstract

On the basis of the experimental study on the steam forced heat transfer

the SSG turbulence model was adopted to solve the three-dimensional steady Reynolds-averaged Navier-Stokes equations. The numerical investigation was performed on the influence of Reynolds numbers(Re)

temperature and pressure on the steam flow and heat transfer process in a 90° ribbed rectangular channel. The results show that the variations of temperature and pressure significantly affect the steam forced heat transfer characteristics. The steam heat transfer coefficient and friction factor will increase with an increase in pressure and decrease with an increase in temperature. Generally

the optimum steam thermal enhancement performance can be achieved for the steam flow at the suitable Re number

relative low temperature and medium pressure. The change in Re number has little effect on the performance of steam cooling.

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references

翁史烈. 燃气轮机 [M].北京: 机械工业出版社, 1988.

HAN J C, DUTTA S, EKKAD S. Gas turbine heat transfer and cooling technology [M]. London,UK: Taylor Francis, 2000.

NOMOTO H, KONGA A, ITO S, et al. The advanced cooling technology for the 1 500 ℃ class gas turbine: steam-cooled vanes and air-cooled blades [J]. Trans of ASME: Journal of Engineering for Gas Turbines and Power, 1997, 119(3): 624-632.

SANJAY, SINGH O, PRASAD B N. Influence of different means of turbine blade cooling on the thermodynamic performance of combined cycle [J]. Applied Thermal Engineering, 2008, 28(17/18): 2315-2326.

董齐宝,王锁芳. 叶片内部蒸汽冷却的数值模拟 [J]. 航空动力学报, 2008, 23(8): 1364-1369.

TONG Qibao, WANG Suofang. Numerical simulation of a steam-cooled vane [J]. Journal of Aerospace Power, 2008, 23(8): 1364-1369.

霍文浩, 祁明旭, 李军,等. 超临界汽轮机中压透平级流动传热特性研究 [J]. 西安交通大学学报, 2011, 45(7): 9-14.

HUO Wenhao, QI Mingxu, LI Jun, et al. Flow and heat transfer characteristics in middle pressure turbine stage in supercritical steam turbines [J]. Journal of Xi'an Jiaotong University, 2011, 45(7): 9-14.

SHUI Lingqi, GAO Jianmin, XU Liang. Numerical investigation of heat transfer and flow characteristics in a steam-cooled square ribbed duct, 2010-GT-22407 [R]. New York: USA: ASME, 2010.

LIU Jiazeng, GAO Jianmin, GAO Tieyu. An experimental investigation of heat transfer characteristics in steam-cooled square channel with rib turbulators, 2011-GT-46134 [R]. New York, USA: ASME, 2011.

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