Results 11 to 20 of about 177 (158)

Characteristics of corrosion products in low-pressure and high-pressure feedwater heaters in an operating pressurized water reactor

Nuclear Engineering and Technology
In this study, the characterization and comparison of corrosion products collected from the low-pressure and high-pressure heaters of an operating pressurized water reactor during the dry lay-up period indicated distinct differences in their composition ...
Seong-Jun Ha, Hyuk Chul Kwon, Hee-Sang Shim, Do Haeng Hur, ISeul Ryu, Soon-Hyeok Jeon   +5 more
doaj   +1 more source

A Data Reconciliation Based Approach to Accuracy Enhancement of Operational Data in Power Plants

Chemical Engineering Transactions, 2013
Accuracy of operational data of a power plant is essential for power plant performance monitoring and fault diagnosis. However, due to inevitable occurrence of systematic and measurement errors in the course of obtaining operational data, these errors ...
X. Jiang, P. Liu, Z. Li
doaj   +1 more source

Water Electrolysis Technologies for Extraterrestrial Water Resource Conversion

EcoEnergy, EarlyView.
This paper reviews four water electrolysis technologies for extraterrestrial water conversion: alkaline water electrolysis, proton exchange membrane water electrolysis, solid oxide water electrolysis, and anion exchange membrane water electrolysis. It elaborates on their mechanisms, components, and integration, highlighting challenges such as water ...
Yawen Jiang, Yuan Zhao, Lin Zu, Lili Ling, Yongwei Zhao, Jun Di, Pin Song   +6 more
wiley   +1 more source

Pengaruh Plugging Terhadap Kinerja High Pressure Heater Tipe Shell and U-Tube Heat Exchanger (Studi Kasus: Unit 1- 4 di PT ABC)

Quantum Teknika
High Pressure Heater (HPH) is an auxiliary component used to be required in regenerative steam power plants. The component is a heat exchanger utilized to enhance the power plant’s efficiency by enabling high pressure heating process for feedwater before
Ghaffar Muhammad, Ilham Dwi Arirohman, Khoirun Naimah   +2 more
doaj   +1 more source

Reducing the Superheating of Extraction Stream on Advanced-Ultra Super Critical Power Plants with Regenerative Turbines in South Korea: An Economic Analysis

Energies, 2019
In this study, an advanced-ultra super critical (A-USC) simulation model was developed using the Performance Evaluation of power system efficiencies (PEPSE) software and data collected from a 500 MW ultra-supercritical (USC) coal-fired power plant in ...
Dong-Jin Cho, Eul-Bum Lee, Jae-Min Cho, Douglas Alleman   +3 more
doaj   +1 more source

Recent Advances in Prussian Blue Analogs as Capacitive Deionization Electrode Materials: Fundamentals, Structure–Performance Relationships, and Design Strategies

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review systematically examines the fundamental ion‐storage mechanisms, the structural chemistry, and redox behavior of Prussian blue analogs as Faradaic electrodes in capacitive deionization, their intrinsic limitations and engineering optimization strategies, and the critical materials‐to‐device considerations required to advance PBA‐based CDI ...
Adekunle Adedapo Obisanya, Long Pan, Yao Dong, Faming Gao, Jianren Wang   +4 more
wiley   +1 more source

Plugging criteria based on stress analysis for high-pressure feedwater heater tubes with external circumferential wall-thinning flaws

Nuclear Engineering and Technology
Tubes in high-pressure feedwater heaters often experience localized wall thinning due to long-term mechanical and environmental degradation. To prevent catastrophic rupture at such weakened locations, damaged tubes are typically withdrawn from service ...
Thanh Tuan Nguyen, Cong Minh Ha, Van Thuong Nguyen, Hoang Anh Tran, Duc Huy Nguyen, Trong Thanh Nguyen, Hong Bo Dinh   +6 more
doaj   +1 more source

Urban–Rural Comparative Assessment of Hybrid Energy Systems in Southern Africa: A Systematic Review and Bibliometric Analysis

Energy Science &Engineering, EarlyView.
This study synthesizes urban hybrid energy system deployments in Southern Africa, revealing dominant PV–battery configurations, strong cost and emissions benefits, and persistent research concentration in South Africa, highlighting opportunities to scale resilient, low‐carbon urban energy solutions across the region.
Kehinde A. Adeyeye, Charles Mbohwa
wiley   +1 more source

Plasma‐Enabled Simultaneous Synthesis and Nano‐Anchoring of TiO2−x Nanolayers on Mesoporous Bio‐Silica for Effective Photodegradation of Tetramethylammonium Hydroxide

SusMat, EarlyView.
A defect‐rich TiO2−x nanolayer was simultaneously synthesized and nano‐anchored on a mesoporous bio‐silica (diatomite) through a rapid, low‐temperature atmospheric‐pressure plasma process in aqueous media. The optimized TiO2−x/bio‐silica composite (DE 700) exhibits oxygen vacancies, an anatase–rutile heterointerface, broad solar‐spectrum absorption ...
Ali M. Abou‐Elanwar, Sunwoo Kim, So Young Lee, Jeongkyun Yu, Donguk Choi, Min Seob Kim, Chihyun Hwang, Hyungmin Park, Youngtai Noh, Nam Dong Kim, Ming Xie, Jiuyang Lin, Seongju Park, Youngjin Kim, Dong Han Seo   +14 more
wiley   +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