A new semi-closed gas turbine cycle with CO2 separation

被引：9

作者：

Fiaschi, D ^{[1
]}

Manfrida, G ^{[1
]}

机构：

[1] Univ Florence, Dipartimento Energet S Stecco, I-50139 Florence, Italy

来源：

ENERGY CONVERSION AND MANAGEMENT | 1999年 / 40卷 / 15-16期

关键词：

semi-closed; cycle; gas turbine; CO2; reduction; combined cycle;

D O I：

10.1016/S0196-8904(99)00060-6

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

work, a new Semi-Closed Gas Turbine Cycle (SCGT) configuration is presented, named Semi-Closed Gas Turbine/Regenerative Combined Cycle (SCGT/RCC). The SCGT/RCC is an hybrid combination of the SCGT/CC and SCGT/RE cycle concepts, including both partial regeneration of the gas turbine and coupling to a bottoming steam cycle by a small-size Heat Recovery Steam Generator (HRSG). An energy and exergy analysis is carried out for several configurations and operating conditions. A preliminary analysis of the RHE size, CO2 absorption potential and related effects on the cycle performance is presented, at several operating conditions and investigating three possible plant operation modes. The performance of the SCGT/RCC is very interesting at optimized operating conditions (specific power exceeding 550 kJ/kg of compressor inlet flow rate, efficiencies close to 50% including a 80% CO2 removal). This plant is a promising solution that combines the positive features of semi-closed gas turbines, allowing a drastic reduction of size and capital costs for both HRSG and RHE and maintaining high values of performance. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1669 / 1678

页数：10

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