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Failure of Low Pressure Feedwater Heater Tubing-A Case History
CORROSION 1986, 1986Abstract A work program consisting of failure analysis, laboratory tests and feed-water chemistry monitoring was carried out to determine the root cause of low pressure Admiralty brass feedwater heater failures and recommend ammeliorative solutions. The results of this failure analysis showed that the tubes failed due to a
A.V. Manolescu, F. Chiarotto, P. Mayer
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LQG/LTR robust control system design for low-pressure feedwater heater train
IEEE Proceedings on Southeastcon, 2002The linear quadratic Gaussian with loop transfer recovery (LQG/LTR) control system design method is used to obtain a level control system for a nuclear plant low-pressure feedwater heater train. A control system design for robustness at the plant output is developed. Its performance and stability robustness are evaluated for given specifications.
G.V. Murphy, J.M. Bailey
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ASME 2011 Power Conference, Volume 1, 2011
A new type of low-pressure injection heater was presented. The tapered structure of the heater’s mixture space was designed. Heating performance of the low-pressure heater was studied through the experimental method. Then, the influence of entrance parameters on the outlet temperature, the outlet pressure and the ejecting coefficient were analyzed. The
Jing-yu Ran +3 more
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A new type of low-pressure injection heater was presented. The tapered structure of the heater’s mixture space was designed. Heating performance of the low-pressure heater was studied through the experimental method. Then, the influence of entrance parameters on the outlet temperature, the outlet pressure and the ejecting coefficient were analyzed. The
Jing-yu Ran +3 more
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Innovative Field Repair of a Drain Cooler Top Plate in a Low-Pressure Feedwater Heater
Volume 2: Heat Exchanger Technologies; Plant Performance; Thermal Hydraulics and Computational Fluid Dynamics; Water Management for Power Systems; Student Competition, 2018In 2014, the Turkey Point Nuclear Power Plant experienced a hole and a steam leak through the shell of the Unit 4, #3B Low Pressure (LP) Feedwater Heater (FWH) near the drains outlet nozzle. Although the location of the hole in the shell was below the centerline of the heater in the Drain Cooler (DC) Zone, a video probe inspection through the drains ...
Eric Svensson +2 more
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2021
Based on the analysis of the high temperature high pressure heater level switch fault in the Conventional Island of the 1000 MW nuclear power unit, this paper adopts optimization of instrument selection by replacing level switch with level transmitter. By comparing the working characteristics of three most commonly used transmitters, guided wave radar ...
Hai-Ying Fan +4 more
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Based on the analysis of the high temperature high pressure heater level switch fault in the Conventional Island of the 1000 MW nuclear power unit, this paper adopts optimization of instrument selection by replacing level switch with level transmitter. By comparing the working characteristics of three most commonly used transmitters, guided wave radar ...
Hai-Ying Fan +4 more
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Experimental Research on a Heat Pump Water Heater Using Low Pressure Steam as Heat Source
Advanced Materials Research, 2013Heat recovery of low pressure steam in steam condenser of thermal power plant was attractive because of its great economy and environmental value. This paper reported the experimental investigation results on the application of a heat pump water heater (HPWH) using low pressure steam in steam condenser as heat source.
Jun Fan, Feng Zhong Sun, Ming Gao
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Recent Patents on Mechanical Engineering, 2022
Background: In order to reduce global carbon emissions, a cross-critical CO2 singlemachine two-stage compression system was proposed. Due to the characteristics of cooling on the high-pressure side of the cross-critical cycle and bipolar compression on the single-stage, the discharge pressure and the high-low pressure volume ratio have a great ...
Wenting Yang +4 more
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Background: In order to reduce global carbon emissions, a cross-critical CO2 singlemachine two-stage compression system was proposed. Due to the characteristics of cooling on the high-pressure side of the cross-critical cycle and bipolar compression on the single-stage, the discharge pressure and the high-low pressure volume ratio have a great ...
Wenting Yang +4 more
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Thermal Engineering, 2020
The modern state in design, calculation, and operation of heaters used in the steam-turbine regeneration systems in Russia and abroad is reviewed and analyzed. The first part of the article gives a list of companies producing steam-turbine feedwater heaters and the market shares occupied by the countries producing these apparatuses.
Yu. M. Brodov +5 more
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The modern state in design, calculation, and operation of heaters used in the steam-turbine regeneration systems in Russia and abroad is reviewed and analyzed. The first part of the article gives a list of companies producing steam-turbine feedwater heaters and the market shares occupied by the countries producing these apparatuses.
Yu. M. Brodov +5 more
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