Results 71 to 80 of about 848 (238)

Numerical simulation and physical understanding of a locally initiated sea fog event over the eastern Yellow Sea with a transition of air–sea temperature difference

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Unexpected sea fog in the west coast of South Korea had a huge impact on the transportations in the Seoul–Incheon metropolitan area. We reproduced successfully the formation and evolution of a sea event with a transition of air–sea temperature difference using the Weather Research and Forecasting model.
Jeonghoe Kim, Jung‐Hoon Kim, Clive E. Dorman, Harindra J. S. Fernando   +3 more
wiley   +1 more source

Perfluorohexanone for Clean Fire Suppression: Mechanisms, System Design, Applications, and Future Directions

Safety Science and Technology, EarlyView.
Driven by halon and high GWP agent phase out, perfluorohexanone is increasingly deployed in enclosures such as data centers, marine machinery spaces, and industrial process lines. This review summarizes application performance, discharge and distribution design, material compatibility, and byproduct control and maps practical gaps for large volume and ...
Zhilei Yu, Haibin Dong, Yanfeng Sheng, Xuelei Xian, Dehua Zhang, Feiran Li, Liang Liu, Junchao Zhao, Heping Zhang   +8 more
wiley   +1 more source

Application of FMEA and FTA techniques for assessing the occurrence of LOCA in a TRIGA MARK I Reactor

Brazilian Journal of Radiation Sciences
This study presents a framework merging failure mode and effect analysis (FMEA) and fault tree analysis (FTA) techniques to evaluate loss of coolant accident (LOCA) in the Brazilian Reactor TRIGA IPR-RI.
Keferson Almeida Carvalho, Graiciany de Paula Barros, Vanderley de Vasconcelos, Andre Augusto Campagnole dos Santos   +3 more
doaj   +1 more source

A Semi‐Quantitative Methodology for Chemical Process Resilience Assessment

Safety Science and Technology, EarlyView.
A new semi‐quantitative framework is proposed for process resilience assessment. Safety/security, productivity, and quality are integrated into the resilience evaluation. Dynamic simulations are used to quantify resilience as a time‐dependent system response.
Tommaso Capomagi, Ming Yang, Valerio Cozzani   +2 more
wiley   +1 more source

ANALISIS KECELAKAAN REAKTOR AKIBAT KEGAGALAN SISTEM PEMBUANG PANAS PADA REAKTOR NUKLIR GENERASI IV

Jurnal Pendidikan Fisika Indonesia, 2012
Salah satu aspek terpenting dalam proses desain reaktor nuklir adalah aspek keselamatan reaktor. Sebelum membangun reaktor secara fisik, terlebih dahulu dibuat perencaaan perhitungan yang matang termasuk melakukan simulasi kinerja keselamatannya dalam ...
A. G. Abdullah, Z. Su’ud
doaj   +1 more source

Experimental and design‐oriented research on fiber reinforced concrete segmental tunnel linings: A systematic review

Structural Concrete, EarlyView.
Abstract The use of fiber reinforced concrete (FRC) in precast tunnel segments is among the most established and representative applications of this material. Over the past two decades, numerous tunnel linings were constructed with partial or total substitution of conventional steel reinforcement by fibers, this yielding to quantifiable benefits in ...
Vladimir Rusanov, Stanislav Aidarov, Pablo Pujadas, Tai Ikumi, Albert de la Fuente   +4 more
wiley   +1 more source

An analytical approach for loca (Loss of coolant accident)

, 1982
Soğutucu Kaybı Kazası (SKK) oldukça karmaşık dinamik bir süreçtir. İncelenmesi çoğunlukla, ele alınması külfetli bilgisayar programlarının ilgili verilerle koşulmasını gerektirir. Bu programlar üzerinde egemen olunması birikim ister. Bu sağlansa bile elde olunan sonuçların yer yer, fiziksel mi, yoksa çeşitli bilgisayar cilvelerinden bir demet mi ...
Saldıray, E. S., İşyar, A., Yarman, T.   +2 more
openaire   +1 more source

Evaluation Methodology, Numerical Verification and Retrofilling Procedure for Power Transformers to Ensure K‐Class Flame Retardancy and Environmentally Friendly

High Voltage, EarlyView.
ABSTRACT With increasing demands for fire safety and environmental friendliness, retrofilling transformers with alternative insulating liquids has become a growing trend. However, retrofilling power transformers remains uncertain, as more residual mineral oil compromises K‐class flame retardancy, and its impact on environmental performance has yet to ...
Zhenfu Tang, Yihua Qian, Dan Zhou, Wei Hu, Feipeng Wang, Yang Xu   +5 more
wiley   +1 more source

Variability of plant risk due to variable operator allowable time for aggressive cooldown initiation

Nuclear Engineering and Technology, 2019
Recent analysis results with realistic assumptions provide the variability of operator allowable time for the initiation of aggressive cooldown under small break loss of coolant accident or steam generator tube rupture with total failure of high pressure
Man Cheol Kim, Sang Hoon Han
doaj   +1 more source

Research on Nonuniform Ageing State Assessment of Oil‐Immersed Power Transformers Based on PCA–GWO–RF Algorithm

High Voltage, EarlyView.
ABSTRACT The condition assessment of oil–paper insulation is critical for oil–immersed power transformers, which are fundamental to the reliability of modern power systems. The primary limitation of traditional transformer ageing assessment lies in its macroscopic, whole‐unit approach, which fails to account for the localised effects of nonuniform ...
Mingze Zhang, Muhe Yu, Wei Sun, Ji Liu, Song Cheng, Bingjie Wang, Di Shao, Minghe Chi   +7 more
wiley   +1 more source