Results 21 to 30 of about 8,722,657 (381)

High performance reverse solar distiller with enhanced condensation and salt resistance [PDF]

open access: yesE3S Web of Conferences, 2023
Solar interfacial evaporation represents a promising and sustainable solution for desalination. Despite its potential for high evaporation rates, the coexistence of vapor and incident light has hindered efficient freshwater collection.
Ying Dongxuan   +4 more
doaj   +1 more source

Challenges of future energy landscapes in Germany — a nature conservation perspective

open access: yesEnergy, Sustainability and Society, 2020
Background The energy transition in Germany is characterized by a rapid growth of renewable energy and infrastructure. In order to reduce the impact of humans on the climate system, a more ambitious development of renewable energies is needed.
Jens Ponitka, Sarah Boettner
doaj   +1 more source

Principle and Feasibility Study of Proposed Hydrate-Based Cyclopentane Purification Technology

open access: yesEnergies, 2023
The separation of azeotropic mixtures has conventionally been one of the most challenging tasks in industrial processes due to the fact that components in the mixture will undergo gas–liquid phase transition at the same time.
Xianbing Hu   +8 more
doaj   +1 more source

Power generation from low grade waste heat using thermoelectric generator

open access: yesE3S Web of Conferences, 2018
Thermoelectric technology is thought to be a great solution in near future for producing electrical power and recovering low grade waste heat to cut the cost of power generation because of its consistency and eco-friendly affability.
Sohel Rana   +3 more
doaj   +1 more source

Equivalent Modeling of Photovoltaic Power Plant Based on Factor Analysis and Correlation Clustering

open access: yesIEEE Access, 2019
The equivalent model of photovoltaic (PV) power plant can greatly improve the model simulation speed on the basis of satisfying the simulation accuracy.
Pingping Han   +4 more
doaj   +1 more source

Electromagnetic Transient Modeling and Simulation of Power Converters Based on a Piecewise Generalized State Space Averaging Method

open access: yesIEEE Access, 2019
Large-scale photovoltaic (PV) power plants connected to the grid leads to the complex calculations in modeling and simulation of the power system, especially in the electromagnetic transient progress.
Lei Wang   +6 more
doaj   +1 more source

Ionization Engineering of Hydrogels Enables Highly Efficient Salt-Impeded Solar Evaporation and Night-Time Electricity Harvesting

open access: yesNano-Micro Letters, 2023
Highlights An ionization-engineered hydrogel with electronegativity polymer chains to impede salt ions was designed. The hydrogel evaporator exhibited salt impedance in 20 wt% brine for 15 days with a high evaporation efficiency of 95.6%. An all-day high-
Nan He   +5 more
doaj   +1 more source

A new method to suppress the MHD instability of cylindrical liquid metal batteries [PDF]

open access: yesE3S Web of Conferences, 2023
The magnetohydrodynamics (MHD) instabilities of liquid metal batteries (LMBs) severely limit the wide application and commercialization of LMB. A new technology is proposed, which is called the gridstructure (GS), so as to achieve the suppression effect ...
Li Chenhao   +3 more
doaj   +1 more source

Model Reduction of DFIG Wind Turbine System Based on Inner Coupling Analysis

open access: yesEnergies, 2018
The doubly-fed induction generator (DFIG) wind turbine system, which is composed of the wind turbine, generator, rotor-side converter, grid-side converter, and so on, is a typical multi-time scale system. The dynamic processes at different time scales do
Pingping Han   +4 more
doaj   +1 more source

Tribological behaviors of laser textured surface under different lubrication conditions for rotary compressor

open access: yesScientific Reports, 2023
Tribological behaviors of laser textured surface with elliptical dimples were experimentally compared with that of the smooth one under different lubrication conditions, including the poor-oil, rich-oil and dry lubrication.
Shaopeng Ding   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy