Archive: Gas

Controlling Boiler Level When Operating Conditions Change

The right level instrumentation is key to keeping boilers on an even keel. Guided-wave radar offers a critical combination of capabilities. If asked to make a short list of factors able to improve heat rate

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Analytical Tool Helps HRSG Operators Compare Equipment Reliability

Ever since deregulation came to the power industry, combined cycle plant managers have been trying to benchmark their production metrics and cycling costs against those of their competitors. There has always

MPW Mobile Ultrafiltration and Demineralization Units Exceed Canadian Power Plant Expectations

Challenge:
After a major refurbishment, a Canadian nuclear plant required additional process and boiler feed water for plant start-up and commissioning.
The plant’s raw water supply contained measurements ranging from 1-10 NTU, conductivity from 70-100 and color units ranging from 180-420. The plant also experienced highly variable flow rates, ranging from 0-600 GPM, and issues with the

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Managing Thermal Quench Damage at Power Plants

Attemperation equipment is necessary to control steam temperatures at many power plants. However, when the equipment functions improperly or the design is flawed, thermal quenching/shock can damage piping

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Proper Valve Trim Extends Life of Boiler Feedwater Valves

Boiler feedwater valves operate under severe service conditions and are subject to premature failure from seat leakage, cavitation, particulates, and frequent cycling. However, once the type and root cause of

POWER Notebook: First Order for Novel Gas Turbine; Three Mile Island Accident Turns 40; PG&E Pushes Back on Judge’s Proposal

Siemens, Three Mile Island, and Pacific Gas and Electric (PG&E) made notable headlines over recent days. Here is this week’s POWER notebook.  Siemens Bags First Order for 41-MW Aeroderivative Gas Unit Siemens on March 25 said it received its first order for its newest aeroderivative gas turbine offering—the SGT-A45. The buyer, Bayat Power, a subsidiary […]

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First Gas Turbine Upgrade Blending GE and Alstom Technology Unveiled

GE introduced its GT26 HE (high efficiency) gas turbine upgrade on March 25 by announcing Uniper would be the first to install the new technology at the company’s Enfield Power Station in London, England. “We’re proud to launch our new GT26 HE upgrade with Uniper—it’s the most advanced solution we’ve ever introduced on a GT26 […]

Trump Ended War on Fossil Fuels, but Focus Needed on CCS [PODCAST]

The United States Energy Association (USEA) is an association of public and private energy-related organizations, corporations, and government agencies that helps increase understanding of the world’s energy issues. Barry Worthington has been the executive director of the USEA for more than 30 years. During that time, he has seen the association grow from a two-person, […]

Siemens, Mitsubishi Discuss Merger of Turbine Units

A German business magazine reports that Siemens is exploring options for its struggling gas turbine business, and could look to form a joint venture with Japan’s Mitsubishi Heavy Industries (MHI). Manager Magazin on March 21 said Siemens “wants to accommodate the large turbine business of the Japanese Mitsubishi Group and in the future hold only a […]

Gas Now Tops Coal in PJM, but Nuclear Still No. 1

A report from an independent market monitor for PJM Interconnection shows that natural gas-fired power generation topped coal-fired output in PJM in 2018, the first time that gas has topped coal in the history of the largest U.S. grid operator. The “2018 State of the Market” report from Monitoring Analytics LLC, which includes Volume 1 […]

POWER Notebook: ‘Coal on Way Out’, Theme Parks Embrace Renewables

The chief executive of Vistra Energy Corp. last week said coal is not likely to regain market share in the U.S. power market. Curtis Morgan, in a panel discussion March 14 at the CERAWeek event in Houston, Texas, said “coal is on its way out. More and more plants are being retired.” It’s not the […]