Thermodynamic modeling and optimization of multi-pressure heat recovery steam generator in combined power cycle

被引：0
|
作者：
Srinivas, T. [1 ]
Gupta, A. V. S. S. K. S. [2 ]
Reddy, B. V. [3 ]
机构：
[1] VIT Univ, Sch Mech & Bldg Sci, Vellore 632014, Tamil Nadu, India
[2] JNTU Coll Engn, Dept Mech Engn, Hyderabad 500080, Andhra Pradesh, India
[3] Univ Western Ontario, Inst Technol, Fac Engn & Appl Sci, Oshawa, ON L1H 7K4, Canada
来源：
JOURNAL OF SCIENTIFIC & INDUSTRIAL RESEARCH | 2008年 / 67卷 / 10期
关键词：
Combined cycle; Deaerator; Exergy analysis; Heat recovery; Multi pressure; Steam generator;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Optimum configuration for single pressure (SP), dual pressure (DP) and triple pressure (TP) heat recovery steam generator (HRSG) is presented to improve heat recovery and thereby exergy efficiency of combined cycle. Deaerator was added to enhance efficiency and remove dissolved gases in feed water. A new method was introduced to evaluate low pressure (LP)and intermediate pressure (IP) in HRSG from local flue gas temperature to get minimum possible temperature difference in heaters instead of a Usual fixation of pressures. Optimum location for deaerator was found at 1, 3 and 5 bar respectively for SP. DP and TP,in heat recovery at a high pressure (HP) of 200 bar. Results also showed optimum pressure for air compression and steam reheater by means of three categories of heat recovery.
引用
收藏
页码：827 / 834
页数：8
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