有机工质透平膨胀机喷嘴的响应面分析优化

王星; 刘小民

doi:10.7652/xjtuxb201501002

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有机工质透平膨胀机喷嘴的响应面分析优化

更新时间：2025-07-09

- 有机工质透平膨胀机喷嘴的响应面分析优化
- Nozzle Optimization for Organic Turbo-Expander by Response Surface Analysis
- 西安交通大学学报 2015年49卷第1期页码：7-13
- 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：
  
  : 2014-05-31。作者简介: 王星(1986—),男,博士生;刘小民(通信作者),男,副教授。基金项目: 陕西省科技统筹创新工程计划资助项目(2011KTCL01-04)
- DOI：10.7652/xjtuxb201501002
  中图分类号： TK523
- 网络首发：2015-01-10，
  
  纸质出版：2015
- 稿件说明：
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王星, 刘小民. 有机工质透平膨胀机喷嘴的响应面分析优化[J]. 西安交通大学学报, 2015,49(1):7-13.

Nozzle Optimization for Organic Turbo-Expander by Response Surface Analysis[J]. 2015, 49(1): 7-13.
王星, 刘小民. 有机工质透平膨胀机喷嘴的响应面分析优化[J]. 西安交通大学学报, 2015,49(1):7-13. DOI： 10.7652/xjtuxb201501002.

Nozzle Optimization for Organic Turbo-Expander by Response Surface Analysis[J]. 2015, 49(1): 7-13. DOI： 10.7652/xjtuxb201501002.

摘要

为了提高有机工质膨胀机的性能

建立了喷嘴型线优化设计平台

并以喷嘴叶片损失系数为性能指标、以喷嘴型线5个控制点的距离参数为设计变量进行了有机透平膨胀机喷嘴的试验设计。采用响应面方法分析了叶片损失系数随型线控制点的变化

揭示了叶片损失系数对喷嘴型线变化的敏感性。研究结果表明:叶片压力面后段、叶片压力面中部、叶片吸力面后段均存在最佳型线

使喷嘴的叶片损失系数较小; 在喷嘴的设计过程中

减小喷嘴前段和中段的厚度

可以有效降低喷嘴损失系数; 叶片吸力面中段型线的改变对叶片损失系数的影响较大

叶片压力面中段型线的变化对喷嘴损失系数的影响最小。相对于原型喷嘴

采用最优喷嘴型线后叶片损失系数下降了10%。该研究不仅获得了使叶片损失系数较小的喷嘴型线

还能揭示影响喷嘴性能指标的关键因素。

Abstract

An optimization design platform for the profile of nozzle was established

the vane loss coefficient was taken as the performance index

and the distance parameters of five control points on the profile were considered as the variables to experimentally design the nozzle of organic turbo-expander. The response surface method was adopted to analyze the variation of vane loss coefficient with the distance parameters

and the sensitivity of vane loss coefficient to the distance parameters was also revealed. The optimal profiles for the trailing section of pressure surface

the middle section of pressure surface and the trailing section of suction surface were obtained. The results illustrate that the vane loss coefficient can be efficiently decreased by reducing the thickness of front and middle sections of nozzle vane. The profile variation of middle section of the suction surface greatly affects the vane loss coefficient

while the profile variation of the middle section of pressure surface slightly affects the vane loss coefficient. The vane loss coefficient decreases by 10% in the optimal profile design.

关键词

Keywords

references

BERTANI R. World geothermal generation in 2007 [C]∥Proceedings of European Geothermal Congress. Unterhaching, Germany: European Geothermal Energy Council, 2007: 1-5.

BERTANI R. Geothermal power generation in the world 2005-2010 update report [J]. Geothermics, 2012, 4: 1-29.

YAMAMOTO T, FURUHATA T, ARAI N, et al. Design and testing of the organic Rankine cycle [J]. Energy, 2001, 26(3): 449-463.

WANG X, LIU X M, ZHANG C H. Performance analysis of organic Rankine cycle with preliminary design of radial turbo expander for binary-cycle geothermal plants [J]. Journal of Engineering for Gas Turbine and Power, 2013, 135: 111402.

PAN L S, WANG H X. Improved analysis of organic Rankine cycle based on radial flow turbine [J]. Applied Thermal Engineering, 2013, 61: 606-615.

FIASCHI D, MANFRIDA G, MARASCHIELLO F. Thermo-fluid dynamics preliminary design of turbo-expanders for ORC cycles [J]. Applied Energy, 2012, 97: 601-608.

KANG S H. Design and experimental study of ORC(organic Rankine cycle)and radial turbine using R245fa working fluid [J]. Energy, 2012, 41: 514-524.

李艳, 李海波, 顾春伟. 有机工质向心透平气动设计与变工况性能预测 [J]. 工程热物理学报, 2013, 34(1): 63-66.

LI Yan, LI Haibo, GU Chunwei. Aerodynamic design and off-design performance prediction of radial-inflow turbine with organic gas as working fluid [J]. Journal of Engineering Thermophysics, 2013, 34(1): 63-66.

PASQUALE D, GHIDONI A, REBAY S. Shape optimization of an organic Rankine cycle radial turbine nozzle [J]. Journal of Engineering for Gas Turbines and Power, 2013, 135: 042308.

李艳, 顾春伟. 高膨胀比有机工质向心透平气动优化研究 [J]. 工程热物理学报, 2013, 34(7): 1239-1242.

LI Yan, GU Chunwei. Aerodynamic optimization study for a radial-inflow organic turbine with high expansion ratio [J]. Journal of Engineering Thermophysics, 2013, 34(7): 1239-1242.

WHEELER A P S, ONG J. The role of dense gas dynamics on organic Rankine cycle turbine performance [J]. Journal of Engineering for Gas Turbines and Power, 2013, 135: 102603.

BAO J, ZHAO L. A review of working fluid and expander selections for organic Rankine cycle [J]. Renewable and Sustainable Energy Reviews, 2013, 24: 325-342.

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