Results 21 to 30 of about 94,013 (306)

Seismic analysis of a steam generator for Gyeongju and Pohang earthquakes

Nuclear Engineering and Technology, 2023
Safety qualification of a steam generator is a crucial issue related to faulted condition design loads, including earthquake loads, and it should be ensured that the structural integrity of a steam generator does not exceed its design load.
Myung Jo Jhung, Youngin Choi, Changsik Oh, Gangsig Shin, Chan Il Park   +4 more
doaj   +1 more source

Small modular reactors (SMRs): Comparison of saturated versus superheated steam Rankine cycle under equal thermodynamic constraints

Nuclear Engineering and Technology
With part-load operation is increasingly becoming important issue for small modular reactors (SMRs), two secondary Rankine cycles for a 500 MWth pressurized-water-reactor small modular reactor were compared under identical thermodynamic constraints: a ...
Gyudong Kim, Yong Jae Chae, Takhyun Chun, Jeong Ik Lee   +3 more
doaj   +1 more source

Research on the Thermal Stratification Phenomenon at the Secondary Side of a Steam Generator in an Isolated Loop

Energies, 2022
In normal operation, there is no significant thermal stratification phenomenon in the tube bundle area of the steam generator of the nuclear power plant.
Xinxin Liu, Lei Yu, Jianli Hao, Wenzhen Chen   +3 more
doaj   +1 more source

Analysis of Precooling Injection Transient of Steam Generator for High Temperature Gas Cooled Reactor

Science and Technology of Nuclear Installations, 2017
After a postulated design basis accident leads high temperature gas cooled reactor to emergency shutdown, steam generator still remains with high temperature level and needs to be cooled down by a precooling before reactor restarts with clearing of fault.
Yan Wang, Lei Shi, Yanhua Zheng
doaj   +1 more source

PORTABLE STEAM GENERATING EQUIPMENT [PDF]

Proceedings of SPE Rocky Mountain Regional Meeting, 1965
Publication Rights Reserved This paper was prepared for the Rocky Mountain Regional Meeting to be held in Montana, June 10–11, 1965, and is considered the property of the Society of Petroleum Engineers. Permission to copy is restricted to an abstract of not more than 300 words. Illustrations may not be copied. The abstract should contain
openaire   +1 more source

Actuating and Sensing Composites of Liquid Crystal Elastomers and Poly(ionic liquid)s

Advanced Functional Materials, EarlyView.
Ionic conductive, mechanically tough, flexible, and stretchable filaments of a composite material comprising a liquid crystal elastomer and a poly(ionic liquid) are produced through 3D printing, which exhibit large actuation strain under stimulation and electrical resistance variation in response to deformation or environmental condition changes. Their
Zeping Liu, Xiaofeng Zheng, Shaoxia Zhang, Long Xu, Meng Liu, Jeremy Baribeault St‐Germain, Yue Zhao   +6 more
wiley   +1 more source

Comparison of four layouts of optimized triple-pressure heat recovery steam generator

Case Studies in Thermal Engineering
Triple-pressure heat recovery steam generators are found in various sizes of combined cycle power plants. A triple-pressure heat recovery steam generator consists of economizers, evaporators, and superheaters at high, intermediate, and low pressures ...
Somchart Chantasiriwan
doaj   +1 more source

A new method to boost performance of heat recovery steam generators by integrating pinch and exergy analyses

Advances in Mechanical Engineering, 2018
Combined cycle power plants are gaining more attention throughout the world and their usage is increasing. This is because their efficiency is higher than simple Rankine or Brayton cycles. However, their efficiency could still increase.
Seyed Abootorab Moosazadeh Moosavi, Mostafa Mafi, Abdolrazzagh Kaabi Nejadian, GholamReza Salehi, Masoud Torabi Azad   +4 more
doaj   +1 more source

Моделирование парогенератора как объекта регулирования [PDF]

, 2007
Получена модель парогенератора в пространстве состояний в относительных координатах. Представлены принципиальная схема системы автоматического регулирования уровня парогенератора, в которой реализованы принципы регулирования по возмущению расхода пара и ...
Лымарь, А. В., Северин, Валерий Петрович   +1 more
core  

Graphene Nanosheet‐Based Mixed Proton‐Electron Conducting Membranes for Efficient Hydrogen Purification

Advanced Functional Materials, EarlyView.
A monolayer graphene/phosphoric‐acid mixed proton‐electron conducting membrane combines proton‐conducting nanoconfined acid channels with electron‐conducting graphene nanosheets for efficient high‐temperature hydrogen purification. The membrane achieves nearly 100% H2/CO2 selectivity and 69 GPU hydrogen permeance at 250°C, arising from synergistic ...
Kaiqiang He, Fanmengjing Wang, Dehua Dong, Yuan Kang, Zhikao Li, Jacek J. Jasieniak, Paul A. Webley, Douglas R. MacFarlane, Huanting Wang   +8 more
wiley   +1 more source