湿空气循环分轴燃气轮机的热电联供性能研究
Analysis of Combined Heat and Power Supply Performance Based on Humid Air Two Shaft Gas Turbine
周宇凡 1葛冰 1史向彤 2臧述升1
作者信息
- 1. 上海交通大学机械与动力工程学院动力机械与工程教育部重点试验室,上海 200240
- 2. 中国船舶第七○三研究所,上海 200093
- 折叠
摘要
为研究湿空气燃气轮机(HAT)用于热电联供的热力性能,以试验室建成的湿空气循环分轴燃气轮机为研究对象,利用性能仿真分析方法考察了供热参数对湿空气热电联供系统的影响规律.搭建了湿化循环分轴燃气轮机热电联供性能计算平台,并采用模块化建模方法建立了 HAT循环分轴燃气轮机的热力模型,分析了回热器分流比、供热水流量以及燃料流量对于热电联供系统性能的影响.仿真计算结果表明气轮HAT分轴燃机热电联供时,其热电比可调节范围为0～3.54,与纯供电工况相比发电效率下降了 6.72％,但总效率上升了 18.4％.在控制策略方面,在进行热电联供时需要同时提高回热器分流比、经济器水量、燃料流量以保证燃气初温、经济器热水温度不变,进而维持热电联供不影响发电量.
Abstract
In order to study the combined heat and power supply capacity of humid air cycle combined with heat exchangers based on two shaft gas turbine,the modular thermodynamic model of two shaft gas turbine was estab-lished based on a twin shaft gas turbine in the facility.And using the model,a heat and power combined analysis platform is built.The thermodynamic performance of the base turbine was studied and the influence of heat sup-ply,heat exchanger bypass ratio and fuel supply on cycle performance was analyzed.Result shows the thermoelec-tric ratio can vary from 0 to 3.54 with an drop in electric efficiency of 6.72％and an increase in overall efficiency of 18.4％.On the control strategy the heat exchanger bypass ratio,water flow rate of economizer and fuel flow rate is to be raised together in order to keep the gas temperature and hot water temperature constant without influenc-ing the electricity generation capacity.
关键词
分轴燃气轮机/HAT循环/热电联供/热力性能Key words
two shaft gas turbine/humid air turbine cycle/combined heat and power/thermodynamic perfor-mance引用本文复制引用
基金项目
国家科技重大专项(2017-I-0009-0010)
出版年
2024
NETL
NSTL
万方数据