Results 61 to 70 of about 4,019 (262)

Efficient Solar‐Driven Interfacial Steam‐Electricity Co‐Generation by Modular Design of CAU‐23/Graphene Hybrid Evaporator

Carbon Energy, EarlyView.
A dual‐functional evaporator based on CAU‐23/graphene hybrid is acquired through a modular design strategy. Owing to superior broadband light absorption, optimal wettability, and porous architecture that synergistically integrates nanoconfined ionic channels with photothermal conversion, it exhibits a high evaporation rate of 2.71 kg m−2 h−1 with the ...
Hangyuan Du, Huiyue Wang, Xueying Wen, Qianyu Wei, Junhao Ai, Chang Liu, Guixin Hu, Ran Niu, Jiang Gong   +8 more
wiley   +1 more source

Review of Hydropower Plant Models

International Journal of Computer Applications, 2014
This paper consists of an extensive review on the modeling of hydropower plant. First a background was provided on all components needed to develop a full and comprehensive model on hydropower plant including penstock, governor, turbine and generator. The review of existing models was started with simple analytical models that were followed by system ...
Francois Xavier Fifatin, Essel Ben Hagan, Amevi Acakpovi   +2 more
openaire   +1 more source

Selective Non‐Catalytic Reduction of NOx in the Exhaust Gas of Small Wood Gasification Boilers

Chemie Ingenieur Technik, EarlyView.
Kinetic studies of the SNCR reaction were conducted to investigate NOx reduction in the exhaust gas of small‐scale wood gasification boilers. Both the experimental results and the derived global kinetic model indicate that SNCR can achieve a significant reduction in NOx emissions under typical operating conditions. ABSTRACT The gas‐phase reaction of NO
Alexander Groß, Sven Kureti
wiley   +1 more source

Research on grounding impedance measurement method of grounding grid for novel power system based on vertical wiring

Diance yu yibiao
Considering the limitations of conventional horizontal wiring method in grounding impedance measurement for substations due to wiring path issues, a new method for measuring ground impedance of grounding grid based on vertical deep well wiring is ...
Ran Shuai, Xiao Jiangtao, He Hualin, Xia Jianhua, Zhang Zhaochuang   +4 more
doaj   +1 more source

The Role of Business R&D in Environmental Sustainability: Evidence From the Nordic Countries

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT As environmental sustainability becomes an increasingly important concern for advanced economies, the role of business innovation in relation to environmental outcomes has attracted increasing attention. This study examines the relationship between business enterprise research and development (BERD) and environmental sustainability in the ...
Abdullah Emre Caglar, Mehmet Ulug, Ismail Demirdag   +2 more
wiley   +1 more source

Scenarios for refurbishment of a hydropower plant equipped with Francis turbines

Renewable Energy and Environmental Sustainability, 2016
The energy market imposes new requirements in hydraulic turbines operation. Usually, the old hydraulic turbines are not designed to meet these new requirements.
Muntean Sebastian, Susan-Resiga Romeo, Göde Eberhard, Baya Alexandru, Terzi Radu, Tîrşi Constantin   +5 more
doaj   +1 more source

Modeling and experimental validation of bolt–grout bond–slip behavior for deep underground excavation support

Deep Underground Science and Engineering, EarlyView.
A novel shear‐lag model, validated by pull‐out tests, incorporates a constant bond stress stage to predict the complete load–displacement response of grouted rock bolts, providing a new tool for optimizing anchorage length and material toughness in deep underground engineering. Abstract The stability of rock masses in deep underground excavations, such
Wenhui Bian, Xiaohui He, Kexue Wang, Yufei Wu, Guoxin Wang, Shaochen Zhang, Jun Yang   +6 more
wiley   +1 more source

Optimising Hydropower Operations: A Tailored Digital Twin Framework for Hydropower Plant

Kalpa Publications in Computing
Digital twins (DT) represent a critical methodology for digitising infrastructures, such as hydropower plants (HPP), enhancing their efficiency, sustainability, and competitive edge. However, despite the potential benefits, there is yet to be a consensus within industrial and academic spheres on the implementation process of digital twins for ...
Chen, Weiwei, Su, Yang, Mathew, Alwyn, Brilakis, Ioannis   +3 more
openaire   +2 more sources

Dynamic geo‐hydrogeological monitoring‐driven situational awareness for real‐time floor water inrush risk prediction in deep mining

Deep Underground Science and Engineering, EarlyView.
The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li, Huiyong Yin, Fangying Dong, Tao Wu, Chao Zhang   +4 more
wiley   +1 more source

Modeling and Comparison of Design Features of Pendulum and Radial Micro-Hydropower Plants Considering the Influence of Variable Design Parameters

Designs
This article provides a comparative analysis of pendulum and radial micro-hydropower plants. The novelty of this study lies in the comparative analysis of units that are fundamentally different in design to achieve the most rational option for low-speed ...
Almira Zhilkashinova, Igor Ocheredko, Bagdat Azamatov, Mergen Nurbaev, Dmitry Dogadkin, Madi Abilev   +5 more
doaj   +1 more source