Szczegóły publikacji
Opis bibliograficzny
Exergy analysis of a negative $CO_2$ emission gas power plant based on water oxy-combustion of syngas from sewage sludge gasification and CCS / Ivar S. Ertesvåg, Paweł MADEJSKI, Paweł Ziółkowski, Dariusz Mikielewicz // Energy ; ISSN 0360-5442. — 2023 — vol. 278 art. no. 127690, s. 1–11. — Bibliogr. s. 10–11, Abstr. — Publikacja dostępna online od: 2023-05-04
Autorzy (4)
- Ertesvåg Ivar S.
- AGHMadejski Paweł
- Ziółkowski Paweł
- Mikielewicz Dariusz
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 146656 |
|---|---|
| Data dodania do BaDAP | 2023-05-15 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.energy.2023.127690 |
| Rok publikacji | 2023 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Energy |
Abstract
A power cycle with water-injected oxy-combustion (water cycle) is investigated by exergy analysis. It is fueled with syngas (aka. producer gas) from gasification of sewage sludge. The cycle is equipped with a spray-ejector condenser (SEC). is separated and compressed for transportation and storage. The net delivered electric power is 31% of the fuel exergy. The task efficiency is 39% when the flue gas bleed to gasification and penalty are subtracted from fuel, and capture is included in the useful product. The large part of exergy destruction, 80%, pertains to the combustor. Increasing the temperature or the pressure of the combustor outlet (turbine inlet) lead, as expected, to reduced exergy destruction and more power delivery. Reducing pressure of the gas turbine outlet (SEC inlet) also increases power production. Varying pressure and temperature of the SEC outlet affects the distribution of exergy destruction among units of the condenser, however scarcely the overall efficiency. Reducing the ambient temperature, including cooling water temperature, reduces the efficiency of the plant, contrary to the effect of conventional plants. The reason is that the low pressure of SEC relies on the pressure and mass flow of injected water, rather than the temperature.