scholarly journals Commercial Operation of the Racer Combined-Cycle System

1985 ◽  
Author(s):  
Peter Truman
Keyword(s):  
Energy Recovery ◽  
Traditional Approach ◽  
Rankine Cycle ◽  
Combined Cycle ◽  
First Year ◽  
Cycle System ◽  
Start Up ◽  
Commercial Operation ◽  
New System

The RAnkine Cycle Energy Recovery (RACER) System represents a significant departure from the traditional approach to combined cycle. Innovative features are incorporated to provide benefits in reliability, simplicity, and cost of operation. This paper discusses experience gained with start-up and commercial operation of the new system and presents results of hardware inspection following the first year of use.

Combined Cycle and Waste Heat Recovery Power Systems Based on a Novel Thermodynamic Energy Cycle Utilizing Low-Temperature Heat for Power Generation

1983 ◽  
Author(s):  
Alexander I. Kalina
Keyword(s):  
Power Systems ◽  
Waste Heat ◽  
Rankine Cycle ◽  
Combined Cycle ◽  
General Motors ◽  
Energy Prices ◽  
Cycle System ◽  
Energy Cycle ◽  
The Cost ◽  
Thermodynamic Energy

A new thermodynamic energy cycle has been developed, using a multicomponent working agent. Condensation is supplemented with absorption, following expansion in the turbine. Several combined power systems based on this cycle have been designed and cost-estimated. Efficiencies of these new systems are 1.35 to 1.5 times higher than the best Rankine Cycle system, at the same border conditions. Investment cost per unit of power output is about two-thirds of the cost of a comparable Rankine Cycle system. Results make cogeneration economically attractive at current energy prices. The first experimental installation is planned by Fayette Manufacturing Company and Detroit Diesel Allison Division of General Motors.

scholarly journals Performance Study of a Novel Integrated Solar Combined Cycle System

Energies ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 3400 ◽  
Author(s):  
Liqiang Duan ◽  
Zhen Wang
Keyword(s):  
Solar Energy ◽  
Meteorological Data ◽  
Lithium Bromide ◽  
Combined Cycle ◽  
Air Cooling ◽  
Absorption Refrigeration ◽  
Performance Study ◽  
Levelized Cost Of Electricity ◽  
Cycle System ◽  
New System

Based on a traditional integrated solar combined cycle system, a novel integrated solar combined cycle (ISCC) system is proposed, which preferentially integrates the solar energy driven lithium bromide absorption refrigeration system that is used to cool the gas turbine inlet air in this paper. Both the Aspen Plus and EBSILON softwares are used to build the models of the overall system. Both the thermodynamic performance and economic performance of the new system are compared with those of the traditional ISCC system without the inlet air cooling process. The new system can regulate the proportions of solar energy integrated in the refrigerator and the heat recovery steam generator (HRSG) based on the daily meteorological data, and the benefits of the solar energy integrated with the absorption refrigeration are greater than with the HRSG. The results of both the typical day performance and annual performance of different systems show that the new system has higher daily and annual system thermal efficiencies (52.90% and 57.00%, respectively), higher daily and annual solar photoelectric efficiencies (31.10% and 22.31%, respectively), and higher daily and annual solar photoelectric exergy efficiencies (33.30% and 23.87%, respectively) than the traditional ISCC system. The solar energy levelized cost of electricity of the new ISCC system is 0.181 $/kW·h, which is 0.061 $/kW·h lower than that of the traditional ISCC system.

Study on a New Solar Thermal Energy Complementary Power Generation System Based on Gas-Steam Combined Cycle

2019 ◽  
Author(s):  
Duan Liqiang ◽  
Lv Zhipeng ◽  
Wang Zhen
Keyword(s):  
Power Generation ◽  
Solar Energy ◽  
Thermal Efficiency ◽  
Combined Cycle ◽  
Energy Utilization ◽  
Solar Thermal ◽  
Solar Power Generation ◽  
Cycle System ◽  
Solar Energy Utilization ◽  
New System

Abstract The integrated solar energy-driven chiller combined cycle system (SCCC) has a problem of low annual solar energy utilization. The solar thermal efficiency and power output of the traditional integrated solar combined cycle system (ISCC) are limited by the integrated solar mirror field area and Rankine cycle efficiency. This paper presents a new system, on the basis of the combined cycle system with the three pressure HRSG with reheat, the solar energy is integrated into the chiller for cooling the compressor inlet air of gas turbine and the heat recovery steam generator (HRSG) for increasing the power output simultaneously. The Aspen Plus, TRNSYS and EBSILON softwares are applied in this paper to build the models of the overall system. The solar thermal efficiency, annual solar power generation and annual solar thermal efficiency are used to evaluate the performances of the new system, the traditional ISCC system and SCCC system. During the summer solstice, the proportions of solar energy used in cooling and heating are set as 40% and 60% in new system, respectively. The research results show that the new system has a higher power output (406.37MW), thermal cycle efficiency (53.61%) and solar thermal efficiency (48.85%) compared with the traditional ISCC system (385.63MW, 51.67%, and 24.43%, respectively) at the design point. The new system can regulates the proportions of solar energy used in the chiller and HRSG based on the monthly meteorological data, in order to maximize the annual solar energy utilization and annual solar power generation. The new system’s annual solar energy utilization hours (2071h) and solar power generation (25.863GW·h) are far greater than those of SCCC system (1498h, 18.185GW·h, respectively). Therefore, the proposed new system with the simultaneous integrations of solar energy with both the chiller and HRSG not only greatly increases the utilization rate of solar energy, but also has the significant thermodynamic advantages.

The Effect and Remedy of Nozzle Loads on Boiler Feed Pumps

2004 ◽  
Author(s):  
Alan P. Flory ◽  
William C. Livoti
Keyword(s):  
Power Plants ◽  
Base Plate ◽  
Combined Cycle ◽  
Real Cost ◽  
Start Up ◽  
Commercial Operation ◽  
Current Design ◽  
Ring Section ◽  
Section Type ◽  
Motor Vibration

Many frequently encountered start-up and operational problems in current design combined cycle power plants can be traced to pipe strain and nozzle loads placed upon pumps. This is most dramatic when the boiler feed pump is affected. Many of the symptoms are significant and can include misalignment, dynamic (changing) alignment, pump or motor vibration, bearing problems, mechanical seal failures and seizure of equipment on start-up and shutdown. While these are all nuisance items that can plague plant shake-down and commissioning, some can generate huge costs and plant unscheduled outages. More profoundly, these symptoms are often all present, making accurate diagnosis of the true cause very difficult. The real cost of these problems can be seen in plants missing commercial operation dates. Some of the piping issues that can cause these symptoms will be discussed, items including hydraulic aspects of the piping design, straight runs, horizontal runs, venting, location of minimum flow valve, and pipe hanger location. Also, the use of pre-fabricated pipe and spool pieces will be discussed. A short discussion will also be presented on how these piping issues impact various designs of pumps, such as barrel pumps, horizontal split case and ring section type pumps. This will also include some comments on pump mounting issues such as base-plate installation, the use of pin & key blocks and pedestal design. All of the discussions will be summarized and then presented with several recommendations for piping repair, operational changes, and material reinforcement. Optional pump features will be presented, indicating what items can be used to improve operation and reliability when abnormal nozzle loads are expected, including comments on internal clearances, wear part metallurgy and bearing upgrades. These recommendations will be compared against several field experiences for confirmation, with some focus on nozzle load data vs. design, and operation prior to and after strain removal. This combination of field results and engineering analysis of this topic should prove quite useful to the engineer attempting to diagnose any symptoms found in the field. Often times several symptoms may be present, making diagnosis difficult and it is only the methodical steps of symptom elimination that will get the new power plant on the way to commercial operation.

Solar Trough Integration Into Combined Cycle Systems

Solar Energy ◽  
2002 ◽  
Author(s):  
Ju¨rgen Dersch ◽  
Michael Geyer ◽  
Ulf Hermann ◽  
Scott A. Jones ◽  
Bruce Kelly ◽  
...  
Keyword(s):  
Power Plants ◽  
Rankine Cycle ◽  
Combined Cycle ◽  
Parabolic Trough ◽  
Successful Operation ◽  
Power Cycle ◽  
Cycle System ◽  
Cycle Systems ◽  
Combined Cycle Plant ◽  
Solar Technology

Parabolic trough solar technology has over 125 plant-years of successful operation at nine commercial Solar Electric Generating Systems (SEGS) power plants that are operating near Barstow, California. These solar plants utilize conventional steam Rankine turbine-generator systems, and as a result most people associate parabolic trough solar technology with steam Rankine cycle power plants. Although these plants are clearly optimized for their particular application, other power cycle designs may be appropriate in other situations. Of particular interest is the integration of parabolic trough solar technology with combined cycle power plant technology, a configuration called the integrated solar combined cycle system (ISCCS). Four potential projects in India, Egypt, Morocco, and Mexico are considering the ISSCS configuration. This paper compares the performance, cost, and carbon emissions of ISCCS and SEGS plants with a standard combined cycle plant.

Tepco 2000 MW Combined Cycle Power Plant Construction Progress and Start-Up

1986 ◽  
Author(s):  
Leroy O. Tomlinson ◽  
T. Kojima
Keyword(s):  
Power Plant ◽  
Combined Cycle ◽  
Initial Operation ◽  
Combined Cycle Power Plant ◽  
Plant Construction ◽  
Cycle System ◽  
Power Company ◽  
Start Up ◽  
Cycle Systems ◽  
Electric Power Company

Tokyo Electric Power Company is completing the construction of the first 1,000 MW group in the world’s largest, 2000 MW, combined cycle power plant. The 165 MW single shaft combined cycle systems are being started sequentially. A description of the construction progress, start-up and initial operation of the first 165 MW combined cycle system and the planned completion of the station are presented.

Cogeneration Plant Machinery Design for Maintenance and Reliability

1990 ◽  
Author(s):  
Charles E. Zirkelback
Keyword(s):  
Combined Cycle ◽  
First Year ◽  
Cogeneration Plant ◽  
Petrochemical Complex ◽  
Start Up ◽  
Machinery Design

This paper describes the major machinery used in a 108 megawatt combined cycle Cogeneration Plant at the Union Carbide’s Seadrift petrochemical complex. Philosophy of design, erection, start-up, and the first year of operation is discussed. Specific machinery problems and their remedies are described.

Sign in / Sign up

Export Citation Format

Share Document