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Keywords: combined cycle
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Proceedings Papers

Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T03A020, June 13–17, 2022
Paper No: GT2022-83250
... to maintain positive returns in combined cycle (CC) power plants. By recirculating a fraction of the exhaust gas exiting the heat recovery steam generator (HRSG) back to the inlet of a natural gas (NG) and hydrogen co-fired GT, the gas flow passing through the compressor and entering the combustor has...
Proceedings Papers

Proc. ASME. GT2022, Volume 4: Cycle Innovations; Cycle Innovations: Energy Storage, V004T06A025, June 13–17, 2022
Paper No: GT2022-82693
... Oxy-Combustion Combined Cycle (SCOC-CC) with state-of-the-art and future blade materials. In particular, the analysis considers class-H turbine super-alloys with a maximum blade wall temperature of 900 °C and Ceramic Matrix Composites with blade wall temperatures of 1300 °C. Sensitivity analyses...
Proceedings Papers

Proc. ASME. GT2022, Volume 4: Cycle Innovations; Cycle Innovations: Energy Storage, V004T06A012, June 13–17, 2022
Paper No: GT2022-81118
... Abstract This work focuses on the optimal cycle design criteria for heavy duty gas turbines employing CMC blades. A combined cycle model with detailed description of the cooled gas turbine is used to determine the optimal Turbine Inlet Temperature and pressure ratio for two values of maximum...
Proceedings Papers

Proc. ASME. GT2022, Volume 4: Cycle Innovations; Cycle Innovations: Energy Storage, V004T07A006, June 13–17, 2022
Paper No: GT2022-82343
... Abstract The Liquid Salt Combined Cycle™ (LSCC) is introduced as a hybrid energy storage system that integrates electrically heated thermal energy storage with gas turbine exhaust heat. The objective is to provide low-cost, large-scale storage of increasingly curtailed renewable energy...
Proceedings Papers

Proc. ASME. GT2022, Volume 4: Cycle Innovations; Cycle Innovations: Energy Storage, V004T07A001, June 13–17, 2022
Paper No: GT2022-80426
... Abstract Hybrid integration of thermal energy storage with gas turbines can provide compact, cost-effective, long-duration energy storage while reducing the fuel consumption of dispatchable resources needed for the reliability of renewable dominant electric grids. The Liquid Air Combined Cycle™...
Proceedings Papers

Proc. ASME. GT2022, Volume 5: Education; Electric Power; Fans and Blowers, V005T09A003, June 13–17, 2022
Paper No: GT2022-81807
... Abstract The current thermal performance of advanced gas turbines (J class) leads to combined cycle efficiencies exceeding 62%. Such results were achieved by making the gas turbines bigger, i.e., above 350 MW (larger air flow), and by increasing the firing temperature. However, a very...
Proceedings Papers

Proc. ASME. GT2022, Volume 5: Education; Electric Power; Fans and Blowers, V005T09A002, June 13–17, 2022
Paper No: GT2022-81802
... ABSTRACT Modern heavy duty industrial gas turbines in combined cycle configuration, with rated efficiencies (at ISO base load) above 60% net LHV, are expected to play a significant role in reducing the carbon footprint of utility scale electricity generation. Even without post-combustion capture, simply...
Proceedings Papers

Proc. ASME. GT2021, Volume 4: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage; Education; Electric Power, V004T06A012, June 7–11, 2021
Paper No: GT2021-59358
... combined cycle heat rate part load operation ejector EGR Abstract Abstract The gas turbine inlet air heating system has been used for improving the combined cycle heat rate at part load operation, which has a positive impact on the combined cycle profitability and fuel consumption...
Proceedings Papers

Proc. ASME. GT2021, Volume 4: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage; Education; Electric Power, V004T06A018, June 7–11, 2021
Paper No: GT2021-59983
.... It is found that DLGTE with PDC achieves 40 to 47% thermal mass of steam, kg/kg air efficiency as against 20 to 35% of Base Line Gas Turbine fuel consumption of DLGTE, kg/kg air Engine (BLGTE) and 27 to 40% of Combined Cycle Gas Turbine Engine (CCGTE) with a Steady Flow Combustor fuel consumption of BLGTE...
Proceedings Papers

Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T06A022, September 21–25, 2020
Paper No: GT2020-15421
...DIGITAL HYBRID EVAPORATIVE COOLER: AN ADAPTIVE, MODULATED EVAPORATIVE COOLER FOR COMBINED CYCLE POWER PLANTS WITH IMPROVED HEAT RATE AND WATER EXPENSE Majed Sammak1,Maruthi Jupudi2,Brad Kippel3,Jalal Zia2 1 GE Gas Power, Hot and Harsh CoE, Dammam, Saudi Arabia, Corresponding author 2 GE Gas Power...
Proceedings Papers

Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T06A032, September 21–25, 2020
Paper No: GT2020-15764
...SIMULATION OF OPTIMIZING THE PARTIAL LOAD PERFORMANCE OF A GAS TURBINE COMBINED CYCLE USING EXHAUST HEAT RECUPERATION AND INLET BLEED HEATING Seong Won Moon1, Tong Seop Kim2 1Graduate School Inha University, Incheon, Korea 2Dept. of Mechanical Engineering Inha University, Incheon, Korea ABSTRACT...
Proceedings Papers

Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T31A005, September 21–25, 2020
Paper No: GT2020-14450
...Abstract Abstract The supercritical CO 2 (S-CO 2 ) and transcritical CO 2 (T-CO 2 ) combined cycle is a promising technology for the waste heat recovery of the offshore gas turbine. In this paper, a new system layout is proposed to investigate the thermodynamic and economic performances...
Proceedings Papers

Proc. ASME. GT2012, Volume 5: Manufacturing Materials and Metallurgy; Marine; Microturbines and Small Turbomachinery; Supercritical CO2 Power Cycles, 329-338, June 11–15, 2012
Paper No: GT2012-69022
... This paper is aimed at designing and optimizing combined cycles for marine applications. For this purpose, an in-house numerical simulation tool called DNA (Dynamic Network Analysis) and a genetic algorithm-based optimization routine are used. The top cycle is modeled as the aero-derivative gas...
Proceedings Papers

Proc. ASME. GT2008, Volume 2: Controls, Diagnostics and Instrumentation; Cycle Innovations; Electric Power, 863-870, June 9–13, 2008
Paper No: GT2008-50058
... 04 08 2009 With increasing demand for power and with shortages envisioned especially during the peak load times during the summer, there is a need to boost gas turbine power. In Taiwan, most of gas turbines operate with combined cycle for base load. Only a small portion of gas turbines...
Proceedings Papers

Proc. ASME. GT2007, Volume 3: Turbo Expo 2007, 151-159, May 14–17, 2007
Paper No: GT2007-27359
... 10 03 2009 This paper deals with the study of influence of different types of cooling, fuel heating and steam generation states on performance of simple gas / steam combined cycle with varying cycle pressure ratio and turbine inlet temperature (TIT). Open and closed loop cooling using...
Proceedings Papers

Proc. ASME. GT2007, Volume 3: Turbo Expo 2007, 57-64, May 14–17, 2007
Paper No: GT2007-27198
... 10 03 2009 The gas engine-gas turbine combined cycle was developed as the ETCS (Engine Turbo Compound System) that has a potential to be a future high performance combined cycle. The reciprocating engine operates with a maximum pressure and temperature in the cylinder, higher than...
Proceedings Papers

Proc. ASME. GT2003, Volume 3: Turbo Expo 2003, 45-51, June 16–19, 2003
Paper No: GT2003-38052
... 05 02 2009 The increase in efficiency of combined cycle has mainly been caused by the improvements in gas turbine cycle efficiency. With the increase in firing temperature the exhaust temperature is substantially high around 873 K for moderate compressor pressure ratio, which has...
Proceedings Papers

Proc. ASME. GT2003, Volume 3: Turbo Expo 2003, 11-16, June 16–19, 2003
Paper No: GT2003-38015
..., allowing almost complete recovery of waste heat. A capacity increase exceeding 35% is possible, and overall cycle efficiency can approach 70% when incorporated into a state-of-the-art combined-cycle plant. The cost of per incremental kW of the topping cycle can be dramatically lower than that of the base...
Proceedings Papers

Proc. ASME. GT2002, Volume 1: Turbo Expo 2002, 953-957, June 3–6, 2002
Paper No: GT2002-30468
... 05 02 2009 The gas turbine efficiency drops quickly at part load as it is very dependant on turbine firing temperature. Therefore in combined cycle power plants the inlet guide vane is adjusted to maintain the high combustion chamber exhaust temperature. Simulations on influence...
Proceedings Papers

Proc. ASME. GT2004, Volume 5: Turbo Expo 2004, Parts A and B, 65-70, June 14–17, 2004
Paper No: GT2004-54057
... 25 11 2008 Combined cycle power plants operate at thermal efficiency approaching 60 percent. In the same time their performance presents several problems that have to be addressed. E.g. gas turbines are very sensitive to backpressure exerted on them by the heat recovery steam...