舰用ICR燃气轮机PSR瞬态响应特性的数值分析  

Numerical Analysis on Transient Response Characteristic of PSR for Marine ICR Gas Turbine

作　　者：王斌[1] 程惠尔[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030

出　　处：《中国造船》2006年第4期44-50,共7页Shipbuilding of China

基　　金：国家重点基础研究发展规划基金项目(G199999022303);海装十五预先研究项目(401010301)

摘　　要：基于能量守恒原理和PSR(一次表面回热器)的结构特点,导出回热器冷热流体和固体间壁非稳态温度变化的微分方程式;利用直观的流动扰动因子M修正传热系数k,研究热流体进口温度和流量发生阶跃变化时PSR的响应时间;还分析了PSR传热波纹板片的数目n、几何尺寸及通道波纹形状对温度响应时间的影响。研究结果表明,由于PSR的固体壁面时间常数远小于板翅式和管壳式换热器,因此这种轻重结构的先进换热器响应特性明显优于常规热交换器,特别适用于那些要求机动多变、反应灵敏的舰船和车用燃气轮机动力装置。Transient response characteristic of primary surface recuperator（PSR） for marine ICR gas turbine is analyzed. Based on the conservation law of energy and the structural characteristics of PSR, its unsteady differential equations about transient temperature of cold fluid and hot fluid and solid wall in the recuperator is derived. Heat transfer coefficient k is corrected by use of flow disturbance factor M. The researches of response characteristic of PSR during different conditions, in which the input temperature or mass of gas is changed suddenly, are carried out. The influence of number of corrugated heat transfer foil in PSR, geometrical size and shape of corrugated channels on the transient temperature response is also analyzed. The research result shows that the low-weight PSR is much more advantages in transient response than traditional heat exchangers, because time constant of solid wall of the PSR is much less than pipe-shell and plate-fin heat exchangers, PSR is very fit for application to the marine or vehicle gas turbine engine that works in the changeful environment.

关 键 词：船舶 舰船工程 燃气轮机 一次表面回热器 瞬态响应特性 数学模型 数值计算 

分 类 号：U664.131[交通运输工程—船舶及航道工程]