Results 101 to 110 of about 67,787 (224)
CFD Simulation and Optimization of Very Low Head Axial Flow Turbine Runner
International Journal of Renewable Energy Development, 2015 The main objective of this work is Computational Fluid Dynamics (CFD) modelling, simulation and optimization of very low head axial flow turbine runner to be used to drive a centrifugal pump of turbine-driven pump. The ultimate goal of the optimization
Yohannis Mitiku Tobo +2 more
doaj +1 more source
Analysis of a Novel Brushless Doubly Fed Reluctance Generator Based Wind Energy Conversion System
Energy Science &Engineering, EarlyView.BDFRG based grid connected wind energy conversion system. ABSTRACT This paper presents a grid connected Brushless Doubly‐Fed Reluctance Generator (BDFRG) based wind energy conversion system. It offers a reliable and cost‐effective solution since its brushless and cage‐less rotor structure eliminates the need for slip rings, reducing maintenance costs ...
Subir Datta +6 more
wiley +1 more source
Parametric Design of an Ultrahigh-Head Pump-Turbine Runner Based on Multiobjective Optimization
Energies, 2017 Pumped hydro energy storage (PHES) is currently the only proven large-scale energy storage technology. Frequent changes between pump and turbine operations pose significant challenges in the design of a pump-turbine runner with high efficiency and ...
Linhai Liu +4 more
doaj +1 more source
Prediction of Energy Consumption and Energy Savings in an Urban Vertical Farm Benchmark
Energy Science &Engineering, EarlyView.This research conducted a comprehensive energy consumption analysis of a vertical farm benchmark integrating cultivation, storage, transportation and office functions. It proposed the adoption of small‐scale wind turbines to reduce energy expenditure, hence addressing various sustainability development goals.
Simeng Xie +2 more
wiley +1 more source
Systematic analysis on the energy loss in pump-turbines
Advances in Mechanical EngineeringThe pump-turbine is a key component in pumped-storage power stations, operating under complex conditions. RANS (Reynolds-Averaged Navier-Stokes) is commonly used for numerical simulations, but the differences among various RANS models under different ...
Miao Guo +5 more
doaj +1 more source
Diesel engine catalytic combustor system [PDF]
, 1984 A low compression turbocharged diesel engine is provided in which the turbocharger can be operated independently of the engine to power auxiliary equipment.
Ream, L. W.
core +1 more source
Energy Storage System in Microgrids: Challenges and Opportunities
Energy Science &Engineering, EarlyView.Hybrid integration of multiple Energy Storage Systems (ESSs) within renewable‐powered microgrids enhances reliability, flexibility, and economic sustainability. Lithium‐ion batteries, flow batteries, hydrogen storage, and thermal systems complement each other through coordinated control via Energy Management Systems.
Mohamed G. Moh Almihat, Josiah L. Munda
wiley +1 more source
Space shuttle orbiter auxiliary power unit development challenges [PDF]
, 1985 When the flying spacecraft was approved for development, a power unit for the hydraulic system had to be developed. Unlike other systems on the orbiter, there was no precedent in earlier spacecraft for a hydraulic system nor for the power unit to drive ...
Lance, R., Weary, D.
core +1 more source
Energy Science &Engineering, EarlyView.The simulation shows that the comprehensive heat transfer effect of using nanofluids as cooling liquid is greater than 1.30 nm SiO2/water and 40 nmAl2O3/water nanofluids have the best heat transfer enhancement effect, while all nanofluids of 30 nm Al2O3/water have the best heat transfer enhancement effect.
Bing Dai +6 more
wiley +1 more source
Dynamic Characteristics and Stability Analysis of Space Shuttle Main Engine Oxygen Pump [PDF]
, 1991 The dynamic characteristics of the Space Shuttle high pressure oxygen pump are presented. Experimental data is presented to show the vibration spectrum and response under actual engine operation and also in spin pit testing for balancing. The oxygen pump
Branagan, Lyle, Gunter, Edgar J.
core +1 more source