Efficiency and power upgrade at the aged lignite-fired power plant by flue gas waste heat utilization: High pressure versus low pressure economizer installation
Само за регистроване кориснике
2019
Аутори
Stevanović, VladimirPetrović, Milan M.
Wala, Tadeusz
Milivojević, Sanja
Ilić, Milica
Muszynski, Slawomir
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
A substantial potential exists for the recovery of flue gas waste heat at aged coal-fired power plants. High and low pressure economizers (HPE, LPE) can be applied for this purpose. Two cases of the feedwater supply to the HPE are considered: a supply of the "cold" feedwater taken from the feedwater pump discharge line and a supply of the "hot" feedwater taken after high pressure heaters. The LPE is fed by condensate taken from the low pressure condensate line. The heat transfer area of economizers is equal in all cases. The heat transfer rate of the LPE is maximized by the lowest possible condensate temperature at the economizer inlet, which is limited by the acid dew point temperature. The power upgrade by the HPE fed with the "cold" feedwater is by 2.5 times higher than in case with the LPE. The plant efficiency upgrade by the LPE is by 20% higher than in case with the HPE fed with "cold" feedwater. The HPE fed with the hot feedwater is not competitive. The presented overall benefit...s achieved by the HPE fed with the cold feedwater justify its implementation at the aged 620 MWe power plant.
Кључне речи:
Waste heat recovery / Thermal power plant / Retrofit / Power upgrade / Efficiency / EconomizerИзвор:
Energy, 2019, 187, 115980-Издавач:
- Pergamon-Elsevier Science Ltd, Oxford
Финансирање / пројекти:
- Напредне аналитичке, нумеричке и методе анализе примењене механике флуида и комплексних система (RS-MESTD-Basic Research (BR or ON)-174014)
DOI: 10.1016/j.energy.2019.115980
ISSN: 0360-5442
WoS: 000496334500063
Scopus: 2-s2.0-85071260304
Институција/група
Inovacioni centarTY - JOUR AU - Stevanović, Vladimir AU - Petrović, Milan M. AU - Wala, Tadeusz AU - Milivojević, Sanja AU - Ilić, Milica AU - Muszynski, Slawomir PY - 2019 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3059 AB - A substantial potential exists for the recovery of flue gas waste heat at aged coal-fired power plants. High and low pressure economizers (HPE, LPE) can be applied for this purpose. Two cases of the feedwater supply to the HPE are considered: a supply of the "cold" feedwater taken from the feedwater pump discharge line and a supply of the "hot" feedwater taken after high pressure heaters. The LPE is fed by condensate taken from the low pressure condensate line. The heat transfer area of economizers is equal in all cases. The heat transfer rate of the LPE is maximized by the lowest possible condensate temperature at the economizer inlet, which is limited by the acid dew point temperature. The power upgrade by the HPE fed with the "cold" feedwater is by 2.5 times higher than in case with the LPE. The plant efficiency upgrade by the LPE is by 20% higher than in case with the HPE fed with "cold" feedwater. The HPE fed with the hot feedwater is not competitive. The presented overall benefits achieved by the HPE fed with the cold feedwater justify its implementation at the aged 620 MWe power plant. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Energy T1 - Efficiency and power upgrade at the aged lignite-fired power plant by flue gas waste heat utilization: High pressure versus low pressure economizer installation SP - 115980 VL - 187 DO - 10.1016/j.energy.2019.115980 ER -
@article{ author = "Stevanović, Vladimir and Petrović, Milan M. and Wala, Tadeusz and Milivojević, Sanja and Ilić, Milica and Muszynski, Slawomir", year = "2019", abstract = "A substantial potential exists for the recovery of flue gas waste heat at aged coal-fired power plants. High and low pressure economizers (HPE, LPE) can be applied for this purpose. Two cases of the feedwater supply to the HPE are considered: a supply of the "cold" feedwater taken from the feedwater pump discharge line and a supply of the "hot" feedwater taken after high pressure heaters. The LPE is fed by condensate taken from the low pressure condensate line. The heat transfer area of economizers is equal in all cases. The heat transfer rate of the LPE is maximized by the lowest possible condensate temperature at the economizer inlet, which is limited by the acid dew point temperature. The power upgrade by the HPE fed with the "cold" feedwater is by 2.5 times higher than in case with the LPE. The plant efficiency upgrade by the LPE is by 20% higher than in case with the HPE fed with "cold" feedwater. The HPE fed with the hot feedwater is not competitive. The presented overall benefits achieved by the HPE fed with the cold feedwater justify its implementation at the aged 620 MWe power plant.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Energy", title = "Efficiency and power upgrade at the aged lignite-fired power plant by flue gas waste heat utilization: High pressure versus low pressure economizer installation", pages = "115980", volume = "187", doi = "10.1016/j.energy.2019.115980" }
Stevanović, V., Petrović, M. M., Wala, T., Milivojević, S., Ilić, M.,& Muszynski, S.. (2019). Efficiency and power upgrade at the aged lignite-fired power plant by flue gas waste heat utilization: High pressure versus low pressure economizer installation. in Energy Pergamon-Elsevier Science Ltd, Oxford., 187, 115980. https://doi.org/10.1016/j.energy.2019.115980
Stevanović V, Petrović MM, Wala T, Milivojević S, Ilić M, Muszynski S. Efficiency and power upgrade at the aged lignite-fired power plant by flue gas waste heat utilization: High pressure versus low pressure economizer installation. in Energy. 2019;187:115980. doi:10.1016/j.energy.2019.115980 .
Stevanović, Vladimir, Petrović, Milan M., Wala, Tadeusz, Milivojević, Sanja, Ilić, Milica, Muszynski, Slawomir, "Efficiency and power upgrade at the aged lignite-fired power plant by flue gas waste heat utilization: High pressure versus low pressure economizer installation" in Energy, 187 (2019):115980, https://doi.org/10.1016/j.energy.2019.115980 . .