Results 21 to 30 of about 419,470 (292)

A hybrid sliding mode controller approach for level control in the nuclear power plant steam generators

Alexandria Engineering Journal, 2023
This work presents a hybrid sliding mode controller approach for level control in the nuclear power plant steam generators. In a nuclear power plant, the steam generator is one of the essential pieces of equipment.
Jorge Espín, Sebastián Estrada, Diego Benítez, Oscar Camacho   +3 more
doaj   +1 more source

Sensitivity analysis of thermal-hydraulic parameters to study the corrosion intensity in nuclear power plant steam generators

Nuclear Engineering and Technology, 2019
The failure of steam generators (SGs) due to corrosion is one of the most important problems in power plants. Impurities usually accumulate in the hot sides of SG and form deposits on the SG surfaces.
S. Tashakor, A. Afsari, M. Hashemi-Tilehnoee   +2 more
doaj   +1 more source

Cavity-shaped direct solar steam generator employing conical helical tube for high-temperature application: Model development, experimental testing and numerical analysis

Energy Conversion and Management: X, 2023
Concentrating solar thermal technologies are drawing more attention since it can substantially contribute to a carbon-neutral society. The solar receivers are essential in this technology to convert solar energy efficiently into thermal energy. Moreover,
Yasuki Kadohiro, Vamshi Krishna Thanda, Bruno Lachmann, Kai Risthaus, Nathalie Monnerie, Martin Roeb, Christian Sattler   +6 more
doaj   +1 more source

Steam Generator Secondary pH during a Steam Generator Tube Rupture [PDF]

Nuclear Technology, 1993
The Nuclear Regulatory Commission requires utilizes to determine the response of a pressurized water reactor to a steam generator tube rupture (SGTR) as part of the safety analysis for the plant. The SGTR analysis includes assumptions regarding the partitioning of iodine between liquid and vapor in steam generator secondary.
James P. Adams, Eric S. Peterson
openaire   +5 more sources

Lewis Acid Site Engineering in MOF‐Derived Aluminum Oxide/Carbon Composites for Dechlorination of Waste Plastic Pyrolysis Oil

Advanced Functional Materials, EarlyView.
Controlled carbonization of an Al‐MOF partially decomposes its linkers, exposing coordinatively unsaturated Al centers within an oxide/carbon composite. The resulting Lewis acid sites, rather than surface area, govern organochlorine capture: the composite removes chemically diverse organochlorines from waste plastic pyrolysis oil, outperforms a ...
Seong Cheon Kim, Byeongju Jeon, Suk Hyun Lim, Eun Hee Kwon, Nam Sun Nho, Siyoung Q. Choi, Jeasung Park   +6 more
wiley   +1 more source

Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies

Advanced Materials, EarlyView.
In this review, we discuss the fundamental mechanisms of radiative cooling and solar heating, material and structural design strategies, hybrid approaches integrating additional heat transfer pathways, and durability‐oriented designs addressing environmental stresses.
Hyung Rae Kim, Haeseong Kim, Joo Hwan Ko, Gil Ju Lee, Dae‐Hyeong Kim, Young Min Song   +5 more
wiley   +1 more source

A Self‐Cleaning Solar Evaporator Based on MXene/Aramid Nanofiber Aerogels for Efficient Water Desalination

Advanced Materials Interfaces, EarlyView.
This study develops a self‐cleaning solar evaporator based on MXene‐coated aramid nanofiber aerogels for efficient desalination under high‐salinity conditions. The cylindrical evaporator combines strong photothermal conversion, capillary water transport, and self‐rotation triggered by salt accumulation.
Mandeep Singh, Si (Alex) Qin, Ken Aldren S. Usman, Yuxi Ma, Dan Liu, Weiwei Lei   +5 more
wiley   +1 more source

Compact Steam Bottoming Cycles: Minimum Weight Design Optimization and Transient Response of Once-Through Steam Generators

Frontiers in Energy Research, 2021
Compactness and weight minimization are key aspects for successful and widespread implementation of waste heat recovery steam cycles in off-shore oil and gas platforms due to the site weight and volume footprint constraints.
Rubén M. Montañés, Geir Skaugen, Brede Hagen, Brede Hagen, Daniel Rohde   +4 more
doaj   +1 more source

3D‐Printed Actuator Powered by Liquid Crystal Elastomer Muscles at the Water–Air Interface

Advanced Materials Technologies, EarlyView.
Soft robots for unstructured environments require responsive, durable actuators. Liquid crystal elastomers (LCEs) provide large reversible deformations under thermal or optical stimuli. Direct ink writing enables fabrication of LCE actuators integrated with silicone, with mesogen chemistry and oligomers optimized for printable inks.
Cecilie Ryberg, Stefan Pendlmayr, Jan Skov Pedersen, Jens Vinge Nygaard, Jan P. F. Lagerwall, Brigitte Städler   +5 more
wiley   +1 more source

Qualification of strategies for modernizing test frequency of safety systems at nuclear power facilities with extended time of fuel campaigns

Trudy Odesskogo Politehničeskogo Universiteta
A risk-informed method for qualifying (substantiating) strategies for increasing the test periodicity of passive safety systems in the regimes of increasing the time of fuel campaigns of nuclear power facilities has been developed.
Володимир Іванович Скалозубов, Юрій Сергійович Кацарський, Євгеній Вікторович Мазур, Валерія Юріївна Кочнєва, Іван Миколайович Вербило   +4 more
doaj   +5 more sources