Data Search by General Subjects
Revision Date: 8/9/2016
Tags: Emerson Electric, Gas Turbine, Reciprocating Engine, Optimization, Combustion, Heat Recovery
Opportunities for Data Analytics in Power Generation
Data science is defined as machine learning. One use is in Data Analytics which has four steps 1. Descriptive analytics ( what happened) 2. Diagnotic analytics (why did it happen) 3. Predictive Analytics ( when will it happen) 4. Prescriptive Analytics ( what should I do about it). Prognostics ( a combination of diagnostic and predictive analytics can be used to predict the time at which a system or a component will no longer perform its intended function . This is a challenge since most failures are random and not age relaed. It is important because of the cost of failure. Bearing Failures in Rotating Equipment cause $240B in downtime and repair costs. A combination of physics and data based models can be beneficially used for calculations of remaining useful life ( RUL) . The conclusions of the presentation are 1.Data analytics can help operators manage and improve reliability of generation assets. 2 Prognostics can be used to determine a RUL with a time element and confidence level. 3 Operators can use the RUL to actively manage maintenance schedule and operating conditions in order to maintain reliability. Data Analytics is a also applicable to efficiency ( fuel cost, capacity output) , emissions ( compliance and optimization ) , flexibility ( operational and economic).
Revision Date: 7/18/2016
Tags: XMPL Energy, Pumps, Software, Valves, Optimization, Emissions Reduction, Combustion Optimization, Gas Turbine Protection
Gut Rehab Turns South Jersey Cogen Plant into Electricity Market Gem
Five years of essentially no maintenance investment or capital improvement at the Eagle Point Power Generation facility in Westville, NJ, had clearly taken its toll by the time Rockland Capital acquired the facility in April 2012. Today, Eagle Point expects the plant capacity factor to approach 50% once the last of the capital improvements are finished. Those improvements include everything from a punch list of 146 maintenance activities as well as capital upgrades, including a new steam turbine/generator, wet compression and fogging, and a complete gas turbine optimization and augmentation package which helped avoid the $11-million cost of an SCR.
Revision Date: 11/16/2015
Tags: 221112 - Fossil Fuel 化石燃料, Rockland Capital, Steam Turbine, Control System, Fogging System, Performance, Maintenance, Optimization, Upgrades, Air Treatment, Combined Cycle Journal, USA
The Power of Flexibility: Turbine Inlet Air Chilling Benefits
Gas turbines are constant volume air intake machines; consequently, air mass flow and resultant power output fall as ambient temperatures rise and air density falls. The purpose of Turbine Inlet Air Chilling (TIAC) is to restore the power output of a combustion turbine at elevated ambient temperatures to its rated capacity or better. As the critical 'operating system' of the TIAC enhancement, the control technology also plays an integral role in maximizing operational flexibility.
Revision Date: 11/6/2015
Tags: 221112 - Fossil Fuel 化石燃料, Rockwell Automation, Stellar Energy, Control System, Chiller, Temperature, Optimization, Air Intake, Automation, Power Engineering
Remote Monitoring Solutions Prevent Valve Failure at Combined-Cycle Power Plants
At combined-cycle power plants, a problem in even the smallest piece of equipment can cause significant downtime and lost production. Valves, in particular, must operate at peak performance to ensure consistent plant operation. With the help of remote monitoring software solutions and related support, power plant management teams can ensure that all equipment is operating efficiently and address potential problems before they result in costly downtime.
Revision Date: 9/2/2015
Tags: 221112 - Fossil Fuel 化石燃料, General Electric Company, Valve, Remote Monitoring Software, High Performance Valve, Maintenance, Optimization, Pumps & Systems
Gas Turbine Combined Cycle Fast Start: The Physics Behind the Concept
GTCC startup optimization is essentially minimizing the time required to reach the dispatch power (e.g., full load or a specific part load) without "breaking anything" in the process. For example, failure to control thermal stresses results in cracks via low/high cycle fatigue (LCF and HCF) and brittle fracture. This article provide relevant and easy-to-use technical information (in the form of simple charts, basic equations and representative physical quantities) to form an informed opinion on available technologies for GTCC startups.
Revision Date: 6/3/2015
Tags: 221112 - Fossil Fuel 化石燃料, Bechtel, Gas Turbine, Optimization, Fast Start, Power Engineering
Cost Benefits of Critical Valve Repair in the Heat Recovery Steam Generator
Modern advance frame combined-cycle power facilities operate in a dispatch environment where cold starts, accelerated ramp rates and low load conditions are the norm and where Balance of Plant (BOP) equipment accounts for more than half of all forced outages. An analysis by Pentair revealed that valves are a significant contributing factor in forced outages, primarily based on their application numbers and the severity of their service applications. This article focuses on small bore vent valves and drain valves, reporting research findings that repairing these valves is more prudent and economical than replacing them.
Revision Date: 6/3/2015
Tags: 221112 - Fossil Fuel 化石燃料, Pentair, Heat Recovery Steam Generator, Valve, Life Cycle Cost, Optimization, Service & Repair, Heat Recovery, Fast Start, Power Engineering
How to Design, Retrofit Drum-type HRSGs to Cycle, Start Faster
Fast start and fast ramp of HRSGs in necessary in order to back up renewables when the wind stops or clouds appear. Fast starts/fast ramps also reduce the total emissions during a start, cut startup costs, and enable the plant to achieve full-load revenues faster. This article summarizes a presentation regarding the design and retrofit of HRSGs in order to optimize fast starts and fast ramps.
Revision Date: 6/3/2015
Tags: 221112 - Fossil Fuel 化石燃料, Vogt Power International, Heat Recovery Steam Generator, Optimization, Heat Recovery, Fast Start, Combined Cycle Journal
Fast-Start HRSG Life-Cycle Optimization
Modern heat recovery steam generator (HRSG) design must balance operating response with the reduction in life of components caused by daily cycling and fast starts. Advanced modeling techniques demonstrate HRSG startup ramp rates can be accelerated without compromising equipment life.
Revision Date: 6/3/2015
Tags: 221112 - Fossil Fuel 化石燃料, Foster Wheeler, Heat Recovery Steam Generator, Life Cycle Cost, Optimization, Heat Recovery, Fast Start, Power Magazine
Gas Turbine Air Filter System Optimization
Proper air filtration is critical to the overall performance and reliability of gas turbines. This article discusses various aspects of the air filtration and conditioning process including inlet cooling, filters and water wash cycles.
Revision Date: 2/25/2015
Tags: 221112 - Fossil Fuel 化石燃料, Air Filter, Air Inlet House, Chiller, Optimization, Air Filtration, Power Engineering
Quickly Boost Your Combustion Turbine Response
PowerPhase LLC has developed a new technology called TurboPHASE, a fast-responding, modular “turbocharger,” that can boost the capacity of an existing simple cycle or combined cycle plant by 10% or more in seconds. The system consists of a compressor that delivers hot compressed air to the discharge section of a combustion turbine, thereby allowing it to operate at the rated capacity irrespective of ambient air temperatures. Morris Cogeneration, a combined cycle cogeneration plant near Chicago, installed TurboPHASE, to boost capacity when needed during cold weather events.
Revision Date: 1/30/2015
Tags: 221112 - Fossil Fuel 化石燃料, Turbocharger, Air Inlet House, Gas Turbine, Cold Weather, Performance, Optimization, Air Intake, Power Magazine, USA
Boiler Feedwater Pump Efficiency Optimization - Yokogawa
The optimization of boiler feedwaer operations depends on controlling feedwater and drum pressure. The Yokogawa Dpharp can measure pressures up to 2000 psi and can measure across a range of pressures with high accuracy. Significant energy and maintenance reduction is achieved with optimization of pressure differential.
Revision Date: 9/17/2014
Tags: 221112 - Fossil Fuel 化石燃料, Yokogawa Electric, Boiler Feedwater Pump, Efficiency, Optimization
The Rewards of Pump System Optimization
Typically, when talk turns to power plant pumps, boiler feed and cooling water pumps immediately dominate the discussion. And that’s as it should be: these pumps are critical to a plant’s thermal efficiency and availability. They are also the most costly to produce, operate and maintain, so optimizing their efficiency is imperative. However, in terms of reliability and profitability for the entire plant, it is also prudent (and economically rewarding) to optimize pump system performance throughout the entire station.
Revision Date: 9/8/2014
Tags: Flowserve, Pump, Boiler Feedwater Pump, Cost, Efficiency, Optimization, Power Engineering
Recent Innovations from Gas Turbine and HRSG OEMs, by Thomas W. Overton, JD
Due to the growing demand for gas-fired power plants, OEMs have new opportunities for innovation. Recent innovations reduce emissions, make retrofits simpler and increase efficiency.
Revision Date: 7/21/2014
Tags: 221112 - Fossil Fuel 化石燃料, Gas Turbine, SCR, Performance, Optimization, Retrofit, Nox Control, Power Magazine
Tom covered gas turbine SCR performance optimization and management.
Revision Date: 2/14/2013
Tags: 221112 - Fossil Fuel 化石燃料, Fossil Energy Research Corp., Ammonia Injection Grid, SCR, Optimization, Nox Control, Air Pollution Control