Results 11 to 20 of about 37,057 (267)

Developing a Data-Driven Micro-Credential framework to enhance Primary School Sustainability Programmes [PDF]

open access: yesE3S Web of Conferences
This study proposes the design of a micro-credential system aimed at helping primary schools track, measure, and improve sustainability practices, ultimately assisting them with their sustainability curriculum.
Barry Carrie Anne   +6 more
doaj   +1 more source

Hydrogen Production in Methane Decomposition Reactor Using Solar Thermal Energy

open access: yesApplied Sciences, 2021
This study investigates the decomposition of methane using solar thermal energy as a heat source. Instead of the direct thermal decomposition of the methane at a temperature of 1200 °C or higher, a catalyst coated with carbon black on a metal foam was ...
Haneol Kim   +4 more
doaj   +1 more source

Self-Sufficiency and Energy Savings of Renewable Thermal Energy Systems for an Energy-Sharing Community

open access: yesEnergies, 2021
Due to increased grid problems caused by renewable energy systems being used to realize zero energy buildings and communities, the importance of energy sharing and self-sufficiency of renewable energy also increased. In this study, the energy performance
Min-Hwi Kim   +4 more
doaj   +1 more source

Economic and Environmental Analysis of Solar Thermal and Seasonal Thermal Energy Storage Based on a Renewable Energy Conversion System for Greenhouses

open access: yesEnergies, 2022
This study investigates the economic benefits of solar thermal and seasonal thermal energy storage based on a renewable energy conversion system for greenhouses.
Deuk-Won Kim, Min-Hwi Kim, Dong-Won Lee
doaj   +1 more source

Study on Market-Based Trading Strategies for Biomass Power Generation Participation in Microgrid Systems

open access: yesEnergies, 2023
The Chinese government places significant importance on biomass energy due to its renewable and environmentally friendly attributes. However, the high cost of power generation poses a considerable hurdle to its development. This study aims to address the
Weiwei Yu, Weiqing Wang, Xiaozhu Li
doaj   +1 more source

Energy performance of direct-expansion solar heat pump integrated with thermal network

open access: yesCase Studies in Thermal Engineering, 2023
Direct-expansion solar-assisted heat pumps (DX-SAHP) are increasingly used in heating applications owing to their high efficiency. In this study, the energy performance of a DX-SAHP for a distributed thermal prosumer in a thermal network was investigated.
Min-Hwi Kim   +3 more
doaj   +1 more source

Design of Decentralized Adaptive Sliding Mode Controller for the Islanded AC Microgrid With Ring Topology

open access: yesFrontiers in Energy Research, 2021
Sliding mode control can restrain the perturbations generated from the intermittence of the renewable energy generation and the randomness of local loads when microgrids are operating in islanded mode.
He Jiang   +7 more
doaj   +1 more source

Design of integral sliding mode control and fuzzy adaptive PI control for voltage stability in DC microgrid

open access: yesFrontiers in Energy Research, 2023
This paper introduces a novel control strategy that merges integral sliding mode control with fuzzy adaptive PI control. This hybrid approach maximizes the benefits of both techniques to ensure voltage stability in DC microgrid.
Xinyu Zhang   +6 more
doaj   +1 more source

An Adaptive Sliding Mode Control Based on Disturbance Observer for LFC

open access: yesFrontiers in Energy Research, 2021
In the power system, the loads and nonlinearity parameters cause the system frequency deviation, which complicates the load frequency control (LFC). To deal with the above problem, an adaptive sliding mode control (SMC) based on disturbance observer is ...
Mofan Wei   +7 more
doaj   +1 more source

Grid-Scale Ternary-Pumped Thermal Electricity Storage for Flexible Operation of Nuclear Power Generation under High Penetration of Renewable Energy Sources

open access: yesEnergies, 2021
In this work, the integration of a grid-scale ternary-Pumped Thermal Electricity Storage (t-PTES) with a nuclear power generation to enhance operation flexibility is assessed using physics-based models and digital real time simulation.
Rob Hovsapian   +4 more
doaj   +1 more source

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