Optimization for Circulating Cooling Water Distribution of Indirect Dry Cooling System in a Thermal Power Plant under Crosswind Condition with Evolution Strategies Algorithm
Autor: | Xiaoze Du, Zhao Li, Huimin Wei, Tao Wu |
---|---|
Rok vydání: | 2021 |
Předmět: |
Control and Optimization
Power station 020209 energy Energy Engineering and Power Technology Thermal power station 02 engineering and technology lcsh:Technology Wind speed Whole systems crosswind 020401 chemical engineering Heat exchanger 0202 electrical engineering electronic engineering information engineering Water cooling Coal indirect dry cooling system operation optimization evolution strategies 0204 chemical engineering Electrical and Electronic Engineering Engineering (miscellaneous) lcsh:T Renewable Energy Sustainability and the Environment business.industry Environmental science business Algorithm Energy (miscellaneous) Crosswind |
Zdroj: | Energies, Vol 14, Iss 1167, p 1167 (2021) Energies; Volume 14; Issue 4; Pages: 1167 |
ISSN: | 1996-1073 |
Popis: | Crosswind has an adverse impact on the performance of an indirect dry cooling system. In order to mitigate the adverse influence, this study redistributed the circulating cooling water among air-cooled heat exchanger sectors so that the performance of the indirect dry cooling system could be improved. An evolution strategies algorithm combined with numerical effectiveness-based heat exchanger model was established to minimize the operation costs of the whole system. Based on a 660MW practical power plant, optimal circulating cooling water operation strategies under varied crosswind speeds and ambient temperatures were calculated to show its application. According to the calculated results, the performance of the indirect dry cooling system could be enhanced by optimizing circulating cooling water distribution under any crosswind speed, especially under high ambient wind speeds. There is a slight promotion of the coal savings with a rise in ambient temperature: improvements of about 5%. The standard coal consumption rate could save as much as 2.50 g/kWh under crosswind speed of 10 m s−1 and ambient temperature of 32 °C, compared to the 0.1 g/kWh under crosswind speed of 2 m s−1 and ambient temperature of 32 °C. |
Databáze: | OpenAIRE |
Externí odkaz: | |
Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |