Research on Modeling Method of Gas Turbine Inlet Pressure Loss

Yunfeng JIN; Chao LIU; Gaofeng DENG; Yunlong GUAN; Xin TIAN; Haizhou HUANG; Dongxiang JIANG

doi:10.12096/j.2096-4528.pgt.21043

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Research on Modeling Method of Gas Turbine Inlet Pressure Loss

Intelligent Turbine Power Generation Technology | 更新时间：2025-07-04

- Research on Modeling Method of Gas Turbine Inlet Pressure Loss
- Power Generation Technology Vol. 42, Issue 4, Pages: 395-403(2021)
- 作者机构：
  
  1.清华大学能源与动力工程系, 北京市海淀区 100084
  2.建筑安全与环境国家重点实验室, 北京市朝阳区 100013
  3.华电电力科学研究院有限公司, 浙江省杭州市 310030
- 作者简介：
- 基金信息：
  
  National Key R & D Program of China(2019YFF0216103);National Key R & D Program of China(2019YFF0216104)
- DOI：10.12096/j.2096-4528.pgt.21043
  CLC： TK14
- Received：27 April 2021，
  
  Published：31 August 2021
- 稿件说明：
移动端阅览
Yunfeng JIN, Chao LIU, Gaofeng DENG, et al. Research on Modeling Method of Gas Turbine Inlet Pressure Loss[J]. Power Generation Technology, 2021, 42(4): 395-403.
DOI：

Yunfeng JIN, Chao LIU, Gaofeng DENG, et al. Research on Modeling Method of Gas Turbine Inlet Pressure Loss[J]. Power Generation Technology, 2021, 42(4): 395-403. DOI： 10.12096/j.2096-4528.pgt.21043.

摘要

进气过滤系统中的进气压差监测和控制对保障燃气轮机的安全经济运行具有重要意义。将进气压差分解为管道流动压差与过滤压差2部分。基于机理分析建立进气压差与空气流速之间的函数关系，同时引入修正因子，考虑外界大气环境以及过滤器容尘退化等其他因素对进气压差的影响。利用空气过滤器性能试验和现场运行数据，对所建立的进气压差模型进行验证，结果表明压差和各影响因素之间的关系与模型吻合较好。最后，通过结合进气压差模型与燃气轮机热力系统模型，分析进气压差对燃气轮机性能的影响。研究结果表明，当过滤器临近使用寿命时，异常环境因素对燃气轮机输出功率的负面影响较新过滤器更为明显。

Abstract

In order to ensure the safe and economic operation of gas turbine

it is of great significance to control the inlet pressure loss in the inlet filtration system. This paper divided the inlet pressure loss into two parts: pipeline flow loss and filter pressure loss. The function relationship between the inlet pressure loss and air velocity was established based on the mechanism analysis

and correction factors were introduced to consider the influence of external atmospheric environment and filter degradation. Then

the model was verified through the performance experiment of air filter and the collection of field data

which shows that the relationship between inlet pressure loss and the influencing factors is in good agreement with the model. Finally

by combining the thermodynamic system model of gas turbine

the influence of inlet pressure loss on gas turbine performance was analyzed. The results show that when the filter is near the service life

the negative effect of abnormal environmental factors on the output power of gas turbine is more obvious than that of the new filter.

关键词

Keywords

references

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