毫米级微型透平的气动优化设计研究

付雷; 石(龙)/天; 邓清华; 丰镇平

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毫米级微型透平的气动优化设计研究

更新时间：2025-05-08

- 毫米级微型透平的气动优化设计研究
- Aerodynamic Design and Optimization of a Radial Inflow Millimeter-Scale Turbine
- 西安交通大学学报 2009年43卷第1期页码：15-19
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： TK124
- 网络首发：2009-01-10，
  
  纸质出版：2009
- 稿件说明：
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付雷, 石(龙)/天, 邓清华, 等. 毫米级微型透平的气动优化设计研究[J]. 西安交通大学学报, 2009,43(1):15-19.

Aerodynamic Design and Optimization of a Radial Inflow Millimeter-Scale Turbine[J]. 2009, 43(1): 15-19.
付雷, 石(龙)/天, 邓清华, 等. 毫米级微型透平的气动优化设计研究[J]. 西安交通大学学报, 2009,43(1):15-19. DOI：

Aerodynamic Design and Optimization of a Radial Inflow Millimeter-Scale Turbine[J]. 2009, 43(1): 15-19. DOI：

摘要

对叶轮直径为10 mm的微型透平进行了3种叶轮型线设计

并应用数值模拟进行了分析比较.主要考察3种方案气动性能的优劣

以此研究毫米级微型透平设计时适用的基本型线.在此基础上对设计方案3进行了气动优化设计

研究了提高毫米级微型透平总-静效率的可行方法.结果表明:在3种设计方案中

叶轮叶片中弧线向反旋转方向弯曲的方案3更适于高速运行

具有较高的效率与功率

是最优的设计方案; 随着膨胀比增大

毫米级微型透平的余速损失增加

如追求高的总-静效率

需要选取较低的膨胀比; 毫米级微型透平的尾管进出口面积比对透平总体性能有较大的影响

在热力设计时不应忽略

尾管进出口面积比在1左右时

透平总-静效率最高.

Abstract

Three kinds of rotor profiles of a radial inflow millimeter-scale turbine with a rotor diameter of 10 mm were designed and analyzed with numerical simulation. Their aerodynamic performances were compared and a suitable basic profile was selected. Then redesign and optimization of the profile selected were performed to enhance the total-static efficiency. The results indicate that the profile whose camber line turns to the negative rotating direction is the best one and can be adapted to the higher rotational speed with higher shaft power and efficiency. The leaving velocity loss of the millimeter-scale turbine increases with the increase of expansion ratio. The lower expansion ratio should be chosen if the high total-static efficiency is mainly considered in the design process. The ratio of inlet area to exit area of the diffuser has significant influence on the overall performances of millimeter-scale turbines

and the maximum total-static efficiency will be achieved when the area ratio is around 1:1.

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references

EPSTEIN H A. Millimeter-scale, MEMS gas turbine engines [J]. ASME Journal of Engineering for Gas Turbines and Power, 2004, 126(2):205-226.

FRECHETTE L G, JACOBSON S A, BREUER K S, et al. Demonstration of microfabricated high-speed turbine supported on gas bearings[C]∥Solid-State Sensor and Actuator Workshop. Hilton Head Island, South Carolina, USA: Transducers Research Foundation, 2000:43-47.

KANG S, LEE S J, PRINZ F B. Size does matter, the pros and cons of miniaturization[J].ABB Review, 2001, 1(2): 54-62.

PEIRS J, REYNAERTS D, VERPLAETESN F, et al. A microturbine for electric power generation[J]. Sensors and Actuators: Physical, 2004, 113(1):86-93.

ISOMURA K, MURAYAMA M, YAMAGUCHI H, et al. Component development of micromachined gas turbine generators[C]∥Technical Digest Power MEMS 2002. Piscataway, New Jersey, USA:IEEE, 2002:32-35.

MATSUO E, YOSHIKI H, NAGASHIMA T, et al. Development of ultra gas turbines [J] Journal of the Japan Institute of Energy, 2005,84(3):192-199.

MATSUURA K, KATO C, YOSHIKI H, et al. Prototyping of small-sized two-dimensional radial turbines[C]∥Proceedings of the International Gas Turbine Congress 2003. Tokyo, Japan:IGTC, 2003:1-7.

付雷, 邓清华, 丰镇平. 厘米级微型燃机向心透平初步设计与数值分析 [C]∥中国工程热物理学会第十三届学术会议论文集. 北京:中国工程热物理学会, 2007:350-355.

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ISOMURA K, MURAYAMA M, TERAMOTO S, et al. Experimental verification of the feasibility of a 100 W class micro-scale gas turbine at an impeller diameter of 10 mm[J]. Journal of Micromechanics and Microengineering, 2006, 16(9):254-261.

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