Results 231 to 240 of about 16,676,676 (283)

Failure Analysis of Once-Through Steam Generator (OTSG) Tube

ASME Open Journal of Engineering, 2023
Abstract The once-through steam generator (OTSG) produces superheated steam using purified feed water. The plant-specific water quality, steam quality, high temperature, and pressure operations lead to the leakage of the OTSG tubes with economic, safety, and environmental consequences.
Wahida Tina, Elizabeth Donaldson, Thomas E. Dickinson, William Hal Schmidt   +3 more
openaire   +1 more source

Dynamic modeling of a large once-through steam generator

Nuclear Engineering and Design, 1972
Abstract A mathematical model of a large counter-current heat exchanger for generation of supercritical steam was derived. The model consists of coupled, nonlinear, partial differential equations derived from the laws of conservation of mass, momentum, and energy pertaining to the compressible secondary fluid and the counterflowing incompressible ...
C.K. Sanathanan, A.A. Sandberg, F.H. Clark, O.W. Burke, R.S. Stone   +4 more
openaire   +1 more source

Assessment of Dynamic Instability in Once Through Steam Generator

Volume 3: Thermal Hydraulics; Instrumentation and Controls, 2008
Hydrodynamic flow instability in Once Through Steam Generators (OTSG) is one of the important problems in the design and operation of Liquid Metal Fast Breeder Reactors (LMFBRs). Under certain operating conditions, water flow in OTSG is susceptible to instability due to the close coupling between the thermal and hydraulic processes.
V. Prakash, M. Thirumalai, P. Murugesan, V. Vinod, V. A. Sureshkumar, I. B. Noushad, K. K. Rajan, P. Kalyanasundaram, G. Vaidyanathan   +8 more
openaire   +1 more source

Dynamic simulation of a supercritical once-through heat recovery steam generator during load changes and start-up procedures

Applied Energy, 2009
This paper presents a static and dynamic simulation model of a supercritical once-through heat recovery steam generator (SC HRSG) and its application to investigate the load changes and start-up processes for next generation high efficiency combined ...
Falah Alobaid, Jochen Strohle, Bernd Epple   +2 more
exaly   +2 more sources

Experimental Investigation of a Once-Through Coaxial Steam Generator

Journal of Spacecraft and Rockets, 1965
Tests were conducted on a straight-tube coaxial heat exchanger to determine heat-transfer rates for the generation of superheated steam from heat supplied by a solid-propellant, hotgas generator. Superheated steam at 1600°F and 1500 psia was generated by hot gas at 2200°F that was introduced into a coaxial counterflow tube-in-tube heat exchanger ...
H. E. KARIG, D. N. JACKLEY, L. G. HIDDE
openaire   +1 more source

Gas Path Diagnostics for a Once-Through Steam Generator

Volume 3: Coal, Biomass, Hydrogen, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, 2019
Abstract The performance of a once-through steam generator (OTSG) is bound to degrade due to fouling during its operation. The fouling will result in the degradation of the heat transfer between hot gas and water or steam on both sides of the tubes within the OTSG, thereby causing degraded OTSG performance.
Yu-Zhi Chen, Yi-Guang Li, Mike A. Newby
openaire   +1 more source

Primary fluid optimization in once-through steam generator

Applied Thermal Engineering, 2011
Abstract Once-Through Steam Generator (OTSG) is widely used in nuclear reactor system due to its advantages of compactness. This paper presents a double-tube Once-Through Steam Generator (OTSG) consisting of an outer straight tube and an inner helical tube.
Xinyu Wei, Chunhui Dai, Yun Tai, Fuyu Zhao   +3 more
openaire   +1 more source

Water Treatment for Once-Through Steam Generators

Journal of Petroleum Technology, 1965
Abstract Emphasis on steam flooding has led to a new steam generator, the once-through type. This new generator, in turn, has changed requirements for water treatment for the generator. This paper discusses the water sources, requirements for treating source water for steam generators, equipment necessary for ...
openaire   +1 more source

Minimum variance feedforward control of a once-through steam generator

Engineering Solutions for the Next Millennium. 1999 IEEE Canadian Conference on Electrical and Computer Engineering (Cat. No.99TH8411), 2003
Reliable operation of once-through steam generators (OTSG) of the continuous-tube type, as used for gas turbine heat recovery, requires tight regulation of final steam temperature, using feedwater flow as the controlled variable. The feedwater flow controller typically utilizes feedforward information concerning gas temperature and flow rate, as well ...
K. Gooden, P. Morgan, D. White, R. Rink
openaire   +1 more source

Numerical studies of a helical coil once-through steam generator

Annals of Nuclear Energy, 2017
Abstract A Thermal Hydraulic analysis code for Helical Coil once-through Steam Generator (TH-HCSG) is developed in the present study in order to predict the heat transfer process and thermal hydraulic characteristics in vertical helical coil steam generators. The numerical model is programmed using a one-dimensional four-equation drift-flux model and
Genglei Xia, Yuan Yuan, Minjun Peng, Xing Lv, Lin Sun   +4 more
openaire   +1 more source