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Cycle chemistry monitoring in supercritical once-through power plants with AVT and CWT conditioning

Technical Report:

Abstract

The results of extensive cycle chemistry monitoring campaigns of ENEL (Italian Electricity Board) at Porto Tolle 4 and Porto Tolle 2 fossil fuel power plant are reported. The information acquired allows a detailed description of the chemistry through the cycle and a comparison of different water chemistries (AVT-P04 and CWT-P02) in once-through supercritical boilers. The feasibility of controlling cycle chemistry parameters within the limits suggested by the boiler manufacturer and the new EPRI Iterim Consensus Guidelines was confirmed for the AVT (All Volatile Treatment) conditioning. For CWT (Combined Water Treatment) data were compared for the VGB (German specifications) limits for similar boilers. The values and trends reported for the most significant chemical parameters, measured through the cycle, indicate that, by changing from AVT to CWT, a significant reduction of the oxides generation and transport to the boiler is achieved, as expected. Furthermore, the cycle chemistry appears reasonably fair or even better than that with AVT.
Publication Date:
Dec 31, 1991
Product Type:
Technical Report
Report Number:
ENEL-CRTN-T6-91-13; CONF-9106189-2
Reference Number:
SCA: 200101; 400201; PA: ITA-92:001506; SN: 93000910620
Resource Relation:
Conference: International conference on fossil plant cycle chemistry,Baltimore, MD (United States),4-6 Jun 1991; Other Information: PBD: 1991
Subject:
20 FOSSIL-FUELED POWER PLANTS; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ONCE-THROUGH COOLING SYSTEMS; WATER CHEMISTRY; WATER TREATMENT; FOSSIL-FUEL POWER PLANTS; STEAM GENERATORS; SUPERCRITICAL STATE; PARAMETRIC ANALYSIS; PERFORMANCE TESTING; EXPERIMENTAL DATA; COMPARATIVE EVALUATIONS; 200101; 400201; COOLING AND HEAT TRANSFER EQUIPMENT AND SYSTEMS; CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
OSTI ID:
10109806
Research Organizations:
Ente Nazionale per l`Energia Elettrica, Milan (Italy). Centro Termica e Nucleare
Country of Origin:
Italy
Language:
English
Other Identifying Numbers:
Other: ON: DE93748436; TRN: 92:001506
Availability:
OSTI; NTIS (US Sales Only)
Submitting Site:
ITA
Size:
39 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Barbato, F, Quadri, G, Scalari, G, Sigon, F, and Zagano, C. Cycle chemistry monitoring in supercritical once-through power plants with AVT and CWT conditioning. Italy: N. p., 1991. Web.
Barbato, F, Quadri, G, Scalari, G, Sigon, F, & Zagano, C. Cycle chemistry monitoring in supercritical once-through power plants with AVT and CWT conditioning. Italy.
Barbato, F, Quadri, G, Scalari, G, Sigon, F, and Zagano, C. 1991. "Cycle chemistry monitoring in supercritical once-through power plants with AVT and CWT conditioning." Italy.
@misc{etde_10109806,
title = {Cycle chemistry monitoring in supercritical once-through power plants with AVT and CWT conditioning}
author = {Barbato, F, Quadri, G, Scalari, G, Sigon, F, and Zagano, C}
abstractNote = {The results of extensive cycle chemistry monitoring campaigns of ENEL (Italian Electricity Board) at Porto Tolle 4 and Porto Tolle 2 fossil fuel power plant are reported. The information acquired allows a detailed description of the chemistry through the cycle and a comparison of different water chemistries (AVT-P04 and CWT-P02) in once-through supercritical boilers. The feasibility of controlling cycle chemistry parameters within the limits suggested by the boiler manufacturer and the new EPRI Iterim Consensus Guidelines was confirmed for the AVT (All Volatile Treatment) conditioning. For CWT (Combined Water Treatment) data were compared for the VGB (German specifications) limits for similar boilers. The values and trends reported for the most significant chemical parameters, measured through the cycle, indicate that, by changing from AVT to CWT, a significant reduction of the oxides generation and transport to the boiler is achieved, as expected. Furthermore, the cycle chemistry appears reasonably fair or even better than that with AVT.}
place = {Italy}
year = {1991}
month = {Dec}
}