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0144: Best Practice Guidelines for the Operation and Maintenance of Steam Condensers and their Auxiliaries

For a thermal power station to operate an efficient closed cycle, the condensing plant, the cooling water system, and associated pumps must extract the maximum quantity of heat from the LP turbine exhaust steam to provide the lowest economic heat rejection for that steam cycle. The system must also convert the exhaust steam back to water for reuse and collect re-useable heat from the drains of the turbine, the feed heaters, and other auxiliaries. Clearly the steam condenser plays an extremely im

Oct 10, 2016 - Mar 29, 2018

TGIG

Research

G945: SONOX Demo

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Research

G618: Power Systems Characterization of Chemical Substances

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Research

0147: Best Practice Guidelines for Operation and Maintenance of Steam Turbines and Auxiliary Equipment

The steam turbine (ST) provides many advantages over other prime movers for powering electricity generators. This is a comprehensive review report that covers both STs and various auxiliary equipment. Topics such as the role of STs in generating electricity, types of steam turbines, the development of various designs, and the role of materials over the years have been detailed. Issues and equipment such as applicable standards, blade materials and nozzle design, rotor shafts and couplings, casin

Sep 5, 2018 - Jul 7, 2019

TGIG

Research

G595: Experience In Pulveriser Coal Fires and Explosions Outside USA

In the early 1980's there were indications that not only were p.c. mill fires and explosions a major cause of electric utility down time, but that foreign experience with p.c. mill study was established to survey foreign utility experience with pulverized coal (p.c.) fires and explosions and to relate this to U.S. experience. Sources of foreign p.c. technology were located and visits made to Japan, Australia, England, France, Germany and Switzerland to gather foreign knowledge and experience wit

TGIG

Research

0135: Impact of Cycling/Two shift Damage on the O&M Cost and Reliability of Natural Gas-Fired Combined Cycle (NGCC) Power Plants

The on-going privatization of electricity generation across the world, competition, and demand by shareholders for higher profits, stricter regulations on environmental impacts and the increasing penetration of non-dispatchable energy have resulted in an increasing need for larger energy generators to operate as non base-load units. As a result, Natural Gas-Fired Combined Cycle (NGCC) Power Plants are increasingly being subjected to load-following and/or cyclic operation. However, cyclic operati

Aug 9, 2012 - Aug 6, 2013

TGIG

Research

0143: Generator Maintenance and Condition Assessment Guide

Large turbine generators - whether steam or gas driven - are large, expensive, and complex machines. Utilities strive to maximize the reliability and availability of these assets while simultaneously ensuring that they are operated safely. These machines are designed to have economic lifetimes in the range of 20-50 years. Whether a generator is able to achieve this number of years of service is dependent on the operating environment and the timely application of maintenance. In addition, many la

Mar 1, 2016 - Dec 16, 2016

TGIG

Research

0128: Damage to CCGT Plant due to Cyclic Operation

The principal aims of this study are to collate and review available information and experience on the operation of combined cycle plant under cycling conditions. Specific objectives are:To identify the key engineering threatsTo identify operational constraintsTo assess the impact on engineering and operating costsTo provide guidelines on how to solve the problems associated with CCGT cyclic operationThe management of the cycling of plant in terms of operating procedures, staff training and rela

TGIG

Research

0140: Impacts of Cyclic Operation on Maintenance Programs

Many of the conventional and combined cycle (CCGT) power plants, which have been in operation for a number of years, are presently being subjected to frequent start-stop cycles for longer periods of time. The reasons for this change in operating mode (from base load to cyclic operation) are related to economic factors, environmental drivers, market regulations, privatization of the power industry and the increasing use of non-dispatchable power sources. Whatever the reasons for change in the ope

Jul 21, 2014 - Jan 19, 2015

TGIG

Research

G644: Technical Options For The Disposal of CFBC Solid Wastes

Circulating Fluidized Bed Combustion technology is amongst some of the most advanced acid gas emission control technologies. Although the reduction of acid gases is accomplished by this type of combustion, the generation of solid residues has become an area of concern. Much research into FBC technology and FBC wastes has occurred over the last ten years, resulting in improved disposal methods and possible uses for the residues in commercial products. Some of these previous studies dealt with lan

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