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Integrated Fuel Valve (IFV) Gas Fuel System Upgrade
Siemens Industrial Turbomachinery has recently introduced an upgrade to the gas fuel system for industrial gas turbines up to 15 MW. The upgrade incorporates an Integrated Fuel Valve (IFV) assembly and, where applicable, pneumatically actuated fast acting double block and vent valves.
Revision Date: 5/28/2015
Tags: 221112 - Fossil Fuel 化石燃料, Siemens, Valve, Fuel System
Yokogawa Supplies DCS Information Management System for Burcresti Vest Combined Cycle Plant
The Bucuresti Vest Combined Cycle Heat and Power Plant (CCHP) is located in the Romanian capital of Bucharest and supplies both electricity and heat to this city. Yokogama supplied its CENTUM CS 3000/UOI (Unified Operator Interface) control system which allows a single operator to interface with the plant's turbines, HRSG, balance of plant (BOP) facilities, and electrical systems.
Revision Date: 1/13/2014
Tags: 221112 - Fossil Fuel 化石燃料, Siemens, GE, Yokogawa Electric, Distributed Control System, Control System, Romania
NV Energy Coping with Stellite Delamination
CCJ editors participated in a round table with NV Energy personnel to discuss the first gas-turbine major inspection at its Walter M Higgins Generating Station. Higgins is a 2 x 1 combined cycle powered by 501FD2 gas turbines from Siemens Energy Inc. The roundtable covered a number of issues including large steam valves.
Revision Date: 2/11/2014
Tags: 221112 - Fossil Fuel 化石燃料, Siemens, NV Energy, Gas Turbine, Valve, High Performance Valve, Delamination, Flow Control, Combined Cycle Journal, USA
Siemens has received new orders for its SGT6-8000H gas turbine, a scaled up version of the SGT5-8000H turbine. The most recent order for three turbines for Florida Power & Light’s Port Everglades Energy Center brings the total to nine sold in the US and 20 worldwide. The first SBT6-800H was installed in May 2011 at the Irsching Power Station in Germany and has achieved combined cycle efficiencies of over 60%.
Revision Date: 4/4/2014
Tags: 221112 - Fossil Fuel 化石燃料, Siemens, H-Class, Gas Turbine, Efficiency, Diesel & Gas Turbine Worldwide
VFD at the Hainan Yangpu 220 MW GTCC
This paper discusses the application of variable frequency drives (VFD) in the high-pressure water feeding system of boilers serving Units 11 through 13 of a combined cycle section of the Hainan Yangpu Thermal Power Plant. The article is written by the plant engineer responsible for the operation and maintenance of the system. In the first year of operation there were severe problems with the valve caused in part by inability to measure the outlet pressure of the BFP system and it was determined that a solution lay with replacing the hydraulic coupling with VFD.
Revision Date: 9/8/2014
Tags: 221112 - Fossil Fuel 化石燃料, Siemens, KSB, Boiler Feedwater Pump, Variable Frequency Drive, Boiler Feedwater Treatment, Flow Control, China
Tutorial on Steam Turbine Drivers for Fossil and Nuclear Feed Pump Applications
This paper presents an overview of the operation and design of steam turbines used for driving reactor and boiler feed pumps.
Revision Date: 9/8/2014
Tags: 221112 - Fossil Fuel 化石燃料, 221113 - Nuclear Electric Power Generation * , Siemens, Steam Turbine, Boiler Feedwater Pump, Boiler Feedwater Treatment
Gas Turbine Technologies for the Transition
About 60 GW of coal-fired generation in the U.S. will be retired by 2020 and about 35 GW of nuclear capacity will be retired by 2025, according to recent projections by Black & Veatch. Much of that capacity will be replaced with power produced by low-cost, cleaner-burning natural gas. This article reviews the installation of Siemens new FlexPlant technology at the El Segundo Energy Center in California and GE’s new H-class turbines at the Riviera Beach Energy Center in Florida.
Revision Date: 2/4/2015
Tags: 221112 - Fossil Fuel 化石燃料, GE, Siemens, H-Class, FlexPlant, Gas Turbine, Market, Power Engineering, USA, USA
Bruce addressed two key issues: proposed revisions to the NAAQS for ozone and CO2 limits for new plants
Revision Date: 2/5/2015
Tags: 221112 - Fossil Fuel 化石燃料, Siemens, NAAQS, CO2, Regulation
Gas Turbine Regulatory Drivers Webinar - Hot Topic Hour February 5, 2015
National Ambient Air Quality Standards (NAAQS), emission standards for greenhouse gases and corresponding State permitting hurdles present many challenges for power plant operators. A discussion of these issues and ways to address them were discussed by today’s speakers.
Revision Date: 2/5/2015
Tags: 221112 - Fossil Fuel 化石燃料, EmeraChem, Siemens, McIlvaine, AECOM, Catalyst, Nox, Market, MACT, Regulation, CO2, NAAQS, VOC, CO, Air Pollution Control
Are Flexible Generation Plants Performing as Expected?
This article reviews the performance of the Siemens Flex-Plant installed at the Lodi Energy Center in Lodi, California. Designed to be highly flexible, fast-ramping and fast-cycling to complement renewable power generation, the facility experienced 380 starts over the two-plus year period from November 2012 to January 2015. The consensus is that the facility has lived up to expectations, although operational and maintenance costs are higher than for a typical combined cycle plant.
Revision Date: 4/2/2015
Tags: 221112 - Fossil Fuel 化石燃料, Siemens, Gas Turbine, FlexPlant, Performance, Power Magazine, USA
Fully Automating HRSG Feedwater Pumps
Even a relatively simple start-up process can have many steps and delays for operator cross-checks. Automation can simplify the procedure for the operator while reducing start-up time. In addition, more sophisticated controls techniques may be applied to improve process stability, reduce energy usage, and increase operating flexibility. Modern distributed control system (DCS) platforms offer capabilities that were unavailable just a few years ago. Features such as integrated graphical engineering environments, simplified sequencing controls, and improved human-machine interfaces (HMI) make higher levels of automation more practical from the standpoints of implementation, maintenance, and ease of use. The timing of these advances couldn’t be better—critical operating personnel throughout the power industry are approaching retirement age, and there are insufficient numbers of skilled younger personnel to replace them. Leveraging the existing plant knowledge base to design automation that reduces the burden on plant operators will be essential to meeting tomorrow’s plant demands. As an example, the following case study describes automating a simplified feedwater system for a combined-cycle power plant. The existing legacy DCS controls are proven and reliable; however, the sequence of operations and coordination of regulatory controls is not automated, therefore, it requires a high degree of knowledge and attention on the part of the operator. This case study describes a combination of controls automation strategies and HMI techniques designed to increase the overall level of automation while improving ease of use by operators and maintenance personnel. This article was published in Power Magazine in 2011 and written by Steven Leibbrandt and Bill Thackston, of Siemens Energy Inc. and is accessed in the intelligence system by clicking on the above title
Revision Date: 11/29/2017
Tags: 221112 - Fossil Fuel 化石燃料, Siemens, Heat Recovery Steam Generator, Automation, Pump, Power