The effect of the operating parameters of heat recovery steam generators on combined cycle/sea-water desalination plant performance

✍ Scribed by Bassam G. Jabboury; Mohamed A. Darwish

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 837 KB
• Volume: 10
• Category: Article
• ISSN: 0890-4332
• DOI: 10.1016/0890-4332(90)90006-6

✦ Synopsis

Alntract--Combined gas/steam turbine cycle plants have been proposed for cogeneration of electricity and process steam. Examples are combined-cycie power plants coupled with sea-water desalination, district heating plants, chemical industries, etc. In combined heat and power plants, the gas turbine exhaust heat is utilized through the use of heat recovery steam generators (HRSG's). As a result, these waste heat generators (boilers), whether fired or unfired, control the performance of the combined plant lower side (bottoming cycle). Moreover, any changes made in the HRSG operating parameters (i.e. the pinch point, approach temperature, first and second stage pressures, and mass ratios) can greatly affect the HRSG performance and will eventually affect the overall combined plant performance. This paper presents a method to predict the performance of the heat recovery steam generators (HRSG)/steam bottoming cycle combined with sea-water desalination plant at various steam and exhaust gas conditions.

Cp(l~s)

Cl~in) Cp(stk)