Data Search by General Subjects
Audit by Evoqua results in power plant savings for power, chemicals and labor costs
An uninterrupted supply of high-quality water is vital to power plant operations. When making outage plans that include preventative maintenance on key plant systems, plant personnel should address the plant’s water treatment equipment, ensuring it receives the same high level of attention as its boiler, condensers, turbines and process equipment. So, how does a maintenance planner know whether the water treatment system is operating at its best and that it can meet the power plant’s current and future demands? One way is to plan an audit of the water treatment equipment before a planned outage. The audit should start with a system check-up to assess system conditions, performance and efficiencies and to pinpoint areas that need improvement. The check-up also can determine if a full system audit is required to provide a more in-depth investigation of a single or multiple water unit operation. The system audit should address the individual challenges of specific situations and include an in-plant survey and a summary of findings and recommendations for improvement.
Revision Date: 12/9/2016
Tags: Evoqua, Wastewater, Cost, Reverse Osmosis, Ion Exchange
Gas Turbine NOx Reduction Retrofit
Chevron’s Eastridge Cogeneration Plant near Bakersfield, California, produces steam for thermally enhanced oil recovery and electricity to the grid. To meet regional NOx emissions rules, two existing gas turbines needed the addition of selective catalytic reduction (SCR) for NOx control. This paper discusses the retrofit process from beginning to end.
Revision Date: 8/19/2015
Tags: 221112 - Fossil Fuel 化石燃料, Chevron, Peerless Manufacturing, SCR, Catalyst, Ammonia, Retrofit Technology, Cost, DeNOx, USA
The Value Proposition Offered by HEPA Filtration
The cost of an E12 HEPA filter may be as much as four or five times the price of a conventional air filter. Economic analyses conducted by owners have typically focused on compressor performance and assumed a one- to two-year lifetime for HEPAs serving high-hours engines. Based on those parameters alone the HEPA was, and continues to be, a tough sell. But where the cost of replacement power is expensive or unavailable, water washing is not feasible, or a corrosive ambient environment is causing premature engine failure, HEPA filtration may be readily justified.
Revision Date: 7/20/2015
Tags: 221112 - Fossil Fuel 化石燃料, W. L. Gore, Alliance Pipeline, HEPA Filter, Cost, Life Cycle Cost, Combined Cycle Journal
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
Ion Exchange Resins – Purified water for the world
This presentation provides an overview of LanXess’s Ion Exchange Business Unit and includes a discussion of the drivers for market growth including water scarcity, Asian growth and new nuclear power facilities.
Revision Date: 9/8/2014
Tags: 221112 - Fossil Fuel 化石燃料, Lanxess, Ion Exchange, Market, Cost, Ultrapure Water, Water Treatment
KOMIPO Relocates an Entire Combined Cycle Power Plant
South Korea has experienced years of booming electricity demand that has run ahead of its ability to maintain safe reserve margins. Korea Midland Power (KOMIPO) had an underutilized combined cycle plant in Boryeong that it decided to dismantle and move 100 miles away to Incheon to meet demand, rather than building an entirely new plant.
Revision Date: 8/20/2014
Tags: 221112 - Fossil Fuel 化石燃料, Korea Midland Power, Gas Turbine, Cost, Plant Relocation, Power Magazine, South Korea
Cost and Value of Water Use at Combined-Cycle Power Plants
This study compared water requirements, plant and cooling system capital and operating costs, and plant output and efficiency between plants equipped with wet and dry cooling. Comparisons were made for 500 MW, gas-fired, combined-cycle power plants at four sites, typical of environmental conditions in California. Results of the analysis include: • the use of dry cooling reduces plant water requirements by approximately 2,000 to 2,500 acre-feet per year, • The associated costs are: − increased plant capital cost of approximately $8 million to $27 million, or about 5% to 15% of the total plant cost, − potential reduction of energy production by about 13,000–56,000 megawatt hours (MWh) per year (1% to 2% of the total), − capacity reduction on hot days of 13 to 23 MW (4% to 6% of total), and − potential annual revenue reduction of about $1.5 to $3.0 million (1% to 2% of total)
Revision Date: 12/31/2013
Tags: 221112 - Fossil Fuel 化石燃料, California Energy Commission, Dry Cooling, Wet Cooling, Schematic, Cost, Cooling, Dry Cooling, Wet Cooling, USA
Costs of gas turbines compared to other options by DOE in 2013
Excerpt from "Updated Capital Cost Estimates for Utility Scale Electricity Generating Plants" issued by U.S. Energy Information Administration in April 2013.
Revision Date: 12/16/2013
Tags: 221112 - Fossil Fuel 化石燃料, 221113 - Nuclear Electric Power Generation * , 221118 - Other Electric Power , 221111 - Hydroelectric Power Generation 水力发电, Cost
Technology Review of Modern Gas Turbine Inlet Filtration Systems
A review of the considerations for selecting an inlet filtration system by covering (1) the characteristics of filters and filter systems, (2) a review of the many types of filters, (3) a detailed look at the different environments where the gas turbine can operate, (4) a process for evaluating the site where the gas turbine will be or is installed, and (5) a method to compare various filter system options with life cycle cost analysis.
Revision Date: 11/29/2012
Tags: 221112 - Fossil Fuel 化石燃料, Air Filter, HEPA Filter, Air Inlet House, Cost, Life Cycle Cost, Air Filtration, Air Intake, International Journal of Rotating Machinery
Guideline for Gas Turbine Inlet Air Filtration Systems
A reference for gas turbine inlet air filtration systems, including two life cycle cost analyses, published by the Gas Machinery Research Council of the Southwest Research Institute.
Revision Date: 11/29/2012
Tags: 221112 - Fossil Fuel 化石燃料, Air Filter, Cost, Life Cycle Cost, Air Intake, Air Filtration