CRIAT - GE
Central Repository of Innovation & Advanced Technology
Generation & Environment
An internal repository of new and innovative technologies for the Generation and Environment Units in TNB Research.
GENERATION | Plant Technology
Full article is available here.
Full article is available here.
Full article is available here.
Full article of the technology is available here.
Full article of the technology is available here.
Frac tanks lined up for chemical cleaning. Courtesy: M&M Engineering & Powermag.
An optimization model to evaluate value from water turbine upgrades
Source
HVI Paper, Elwood et al.
Description
At the Brazeau River Power Station (Brazeau) The complexity of the trade-offs between efficiency differences at various operating points along with minimum and maximum generating points, coupled with a generally dynamic market for energy, results in an inability to make direct inferences on the incremental value of one type of turbine runner upgrade when compared to a set of alternatives.
Highlights
An optimization-based operations model was developed to predict operating strategies and expected revenue at Brazeau River, Canada. The model was calibrated with the existing unit performance data, historical hydrology and market conditions to ensure that a reasonable baseline for comparison of runner upgrades could be established.
Full article is available here. Sourced by Ismail Shariff.
Brazeau Dam Power Plant. Photo: moodle2.rockyview.ab.ca
Boiler Chemical Cleaning: Doing It Correctly
Source
Powermag, David Daniels, 1/9/2014
Description
The article a reviews what to do, when, and some things to watch out for for boiler tube cleaning.
Highlights
A standard deposit weight density (DWD) test provide deposit loading and an analysis of chemical composition of the deposit on the tube to determine if cleaning is required.
However, different methods of obtaining the samples for DWD will yield different DWD results. These methods include the the bead-blasting method with glass beads (NACE TM0199-99). The other method is the solvent method, using inhibited hydrochloric acid, HCl (ASTM D3483-83 [2005] Test Method B). In general, the solvent method produces slightly higher DWD results on the same tube, as some small amount of metal is removed with the deposit.
Full article is available here. Sourced by Mohd. Azwan Rashid.
High efficiency inlet air filtering for improved gas turbine (compressor) performance
Source
David Appleyard, Power Engineering International, Dec 2013, page 20-25.
Description
Sub-mircron particles in the inlet air flow (into the compressor) are responsible for most of the fouling and corrosion of the turbine blades. Thus, there is now more emphasis on higher grade filters (from E10 to E12).
Benefits
A cleaner compressor outweighs the high differential pressure loss across the high-efficiency filter.
Risks/Disadvantages
The service life and economics of high efficiency filters still require improvements
Full article is available here.
Sourced by Dr. Lim Mook Tzeng
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