Results 1 to 10 of about 302,744 (185)

Optimization and Demonstration of Direct LD Pumped High-Power Fiber Lasers to Balance SRS and TMI Effects

open access: yesPhotonics, 2023
Up to now, transverse mode instability (TMI) and stimulated Raman scattering (SRS) have become the main factors limiting the power scaling of conventional ytterbium-doped fiber laser. Many technologies are proposed to suppress the SRS or TMI individually,
Lingfa Zeng   +11 more
doaj   +1 more source

Optimization of the Design Configuration and Operation Strategy of Single-Pass Seawater Reverse Osmosis

open access: yesMembranes, 2022
The numerical study was conducted to compare process performance depending on the pump type and process configuration. The daily monitoring data of seawater temperature and salinity offshore from Daesan, Republic of Korea was used to reflect the site ...
Seung Ji Lim   +6 more
doaj   +1 more source

Measurement and analysis of cooling (heat) performance of renewable energy technology projects based on ground source heat pump systems [PDF]

open access: yesE3S Web of Conferences, 2021
The design, configuration and operation of the soil-source heat pump system in four actual projects are monitored, collected and investigated. Combined with various test parameters of the project, the energy efficiency of the ground source heat pump ...
Chang Cuiqing
doaj   +1 more source

FED Pumped Limiter Configuration Issues [PDF]

open access: yesNuclear Technology - Fusion, 1983
Impurity control in the Fusion Engineering Device (FED) is provided by a toroidal belt pumped limiter. Limiter design issues addressed in this paper are (1) poloidal location of the limiter belt, (2) shape of the limiter surface facing the plasma, and (3) whether the belt is pumped from one or both sides.
Haines, J. R., Fuller, G. M.
openaire   +1 more source

Gain Characteristics for C-Band Erbium Doped Fiber Amplifier Utilizing Single and Double-Pass Configurations: A Comparative Study [PDF]

open access: yesEngineering and Technology Journal, 2014
An erbium doped fiber amplifier in the conventional communication window utilizing single and double pump pass configurations were demonstrated and compared using OptiSystem 12 software.
Abdulla. K. Abass   +2 more
doaj   +1 more source

Numerical investigation of losses in a double-suction multistage centrifugal pump and its mitigation using baffle plates

open access: yesFrontiers in Energy Research, 2022
The flow in a double-suction twin-volute five-stage centrifugal pump is studied numerically using Computational Fluid Dynamics (CFD) calculations. The pump performance at various flow rates obtained numerically are compared with the theoretically results.
Mohamed Murshid Shamsuddeen   +7 more
doaj   +1 more source

Analysis of Power Generation Technology and Economy on the Integration of Seawater Pump & Storage and Offshore PV

open access: yes南方能源建设, 2023
[Introduction] There is no study on the integration of the seawater pump-storage and offshore PV at present time in Guangdong Province. The basic conditions are available for the development of offshore PV and seawater pump-storage near sea shore while ...
Junhui ZHU
doaj   +1 more source

Performance Comparison of Serial and Parallel Hybrid Fiber Amplifier under Optimum Pump Conditions [PDF]

open access: yesEngineering and Technology Journal, 2022
In this work, two different configurations of hybrid fiber optic amplifiers are investigated and simulated via OptiSystem 7.0 software, namely, serial and parallel hybrid fiber optical amplifiers (S– and P–HFOAs).
Aseel Khudhaier   +2 more
doaj   +1 more source

Hybrid Cascade Heat Pump and Thermal-Electric Energy Storage System for Residential Buildings: Experimental Testing and Performance Analysis

open access: yesEnergies, 2021
The need for innovative heating and cooling systems to decarbonize the building sector is widely recognized. It is especially important to increase the share of renewables at building level by maximizing self-consumption and reducing the primary energy ...
Valeria Palomba   +17 more
doaj   +1 more source

Study on the influence factors of energy efficiency ratio of low temperature air source heat pump [PDF]

open access: yesE3S Web of Conferences, 2020
In this paper, through the experimental study of two heating seasons, it is found that the heat pump installation position and orientation, circulating pump work/frequency conversion, frosting conditions, etc.
Hong-wen Jin   +4 more
doaj   +1 more source

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