Results 51 to 60 of about 1,497 (181)

Adaptive Fuzzy Energy Management of Wind‐Battery Systems With Flexible Desalination Load

Energy Science &Engineering, EarlyView.
An adaptive fuzzy energy management strategy is proposed for a wind‐battery‐powered reverse osmosis desalination system. The controller dynamically adjusts the desalination load based on wind power availability and the battery state of charge to reduce battery stress.
Mustafa Fadel, Fajer M. Alelaj, Hussain Al‐Sairfi, Mansour Ahmed   +3 more
wiley   +1 more source

Selecting Between Hydrogen and Methanol for Fuel Cell‐Organic Rankine Cycle Hybrid Power Systems: A Comparative 4E Analysis

Energy Science &Engineering, EarlyView.
A 4E comparison of PEMFC‐ORC and DMFC‐ORC systems shows that PEMFC‐ORC achieves 21% higher energy efficiency, while DMFC‐ORC obtains 31% higher exergy efficiency and 57% lower levelized cost of electricity. However, DMFC‐ORC emits nearly twice the annual carbon dioxide equivalent of PEMFC‐ORC.
Zahra Piryaei, Maryam Karami, Iman Khazaee   +2 more
wiley   +1 more source

Optimal Design of a Micro Reversible Pump Turbine for Balancing Generation Mode and Storage Mode

Energy Science & Engineering
The inefficiency of traditional micro horizontal pump units (double‐suction centrifugal pumps) when operating in reverse mode as water turbines has hindered their application in pumped storage systems.
Tengjiao Guo, Jiale Pan, Ran Tao, Ruofu Xiao   +3 more
doaj   +1 more source

ALLIEVI as a Tool for Simulating Hydraulic Transients in Energy Recovery Systems

Engineering Proceedings
ALLIEVI is a software developed by the Universitat Politècnica de València to model and analyze hydraulic transients in pressurized water systems. ALLIEVI allows for the modeling of valve and pump maneuvers, including pressure reducing valves (VRPs) and ...
Roberto del Teso, Elena Gómez, Elvira Estruch-Juan, Javier Soriano   +3 more
doaj   +1 more source

Techno‐Economic Analysis and Multi‐Objective Optimization of a Novel Combined Cooling and Power System Driven by Geothermal Source and Waste Heat From Data Center

Energy Science &Engineering, EarlyView.
A novel combined cooling and power generation system is proposed by integrating organic Rankine cycle (ORC) with an absorption heat transformer, which is driven by combining geothermal energy and data center's waste heat. The system using R601a yielded the best overall performance, achieving an exergy efficiency of 40.34% and an annual cost of 130.29 k$
Zerui Chen, Xin Wu, Zhukui Tan, Jian Xiao, Nan Wang   +4 more
wiley   +1 more source

Research on the performance of pump-turbine during the transition process from pump mode to turbine mode

Frontiers in Energy Research
In current engineering, the transition process of pump turbines from pump to turbine mode mainly includes the shutdown process of pump operating and the startup process of turbine operating, and the switching of working conditions mostly depends on the ...
Zhe Man, Zhe Xu, Zhonghua Gui, Wenfu Han, Yifeng Zhao, Fei Zhang, Lianchen Xu, Yuan Zheng, Yuan Zheng, Kan Kan, Kan Kan   +10 more
doaj   +1 more source

Structural design and 3D printing of flexible integrated electronic systems

FlexMat, EarlyView.
This review provides a comprehensive overview of design and integration strategies for individual components in flexible electronics, highlights the 3D‐printing fabrication techniques, and discusses recent advances in system‐level integration and their applications in real‐time monitoring and intelligent robotics.
Jiani Gong, Jiaying Wang, Changsong Shi, Chi Guo, Songze Fu, Jie Tao, Xiaolong Chen, Yunfei Chen, Zhiyang Lyu   +8 more
wiley   +1 more source

A Detailed Review of Colburn and Friction Factors for Various Types of Fins Used in Compact Plate‐Fin Heat Exchangers

Heat Transfer, EarlyView.
ABSTRACT Compact plate‐fin heat exchangers (PFHEs) are commonly utilized in diverse industries, including aerospace, automotive, processing, and space. Various fin configurations, such as Plain fins, Wavy fins, Lance and Offset fins (OSFs), Perforated fins, louvered fins, and pin fins, are employed in compact heat exchangers (CHEs).
Chennu Ranganayakulu
wiley   +1 more source

Performance Prediction of Centrifugal Norm Pumps Operating as Turbines

Fluids
Pump-as-turbines (PAT) has been widely used during the last decade as one of the most interesting technologies in the field of energy recovery. Many studies and papers have been published in which the performance of the pumps in the turbine operating ...
Jasmina Bogdanović-Jovanović, Živojin Stamenković, Miloš Kocić, Jelena Petrović   +3 more
doaj   +1 more source

Energy Balance and Local Unsteady Loss Analysis of Flows in a Low Specific Speed Model Pump-Turbine in the Positive Slope Region on the Pump Performance Curve

Energies, 2019
The positive slope on the pump performance curve of pump-turbines suggests potential operational instabilities in pump mode. Previous research has indicated that the increase of the hydraulic loss caused by sudden changes of flow patterns in pump ...
Guocheng Lu, Zhigang Zuo, Demin Liu, Shuhong Liu   +3 more
doaj   +1 more source