Results 81 to 90 of about 209,208 (358)

A Study on the Effect of Performance Factor on GSHP System through Real-Scale Experiments in Korea

Energies, 2020
A ground source heat pump system is one of the high-efficient technologies for space heating and cooling since it uses stable underground temperature.
Hongkyo Kim, Yujin Nam, Sangmu Bae, Jae Sang Choi, Sang Bum Kim   +4 more
doaj   +1 more source

Can you take the heat? – Geothermal energy in mining [PDF]

, 2014
In 2013, there are less than 20 documented examples of operational geothermal systems on mine sites worldwide. This is surprising, since on remote mine sites, where fuels may have to be shipped in over great distances, heating and cooling from low ...
Preene, M., Younger, P.L.
core   +1 more source

Tailoring Redox Active Sites with Dual‐Interfacial Electric Fields for Concurrent Photocatalytic Biomass Valorization and H2 Production

Advanced Functional Materials, EarlyView.
A rationally engineered bifunctional photocatalyst is reported, which achieves simultaneous selective oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐diformylfuran (DFF) and efficient H2 evolution. By precisely positioning Au and Co3O4 on Zn3In2S6 nanosheet, dual interfacial electric fields are well constructed to spatially separate ...
Shiqing Li, Sugang Meng, Huijun Zhang, Alain R. Puente‐Santiago, Zhongliao Wang, Shifu Chen, Mario J. Muñoz‐Batista, Yu‐Ming Zheng, Bo Weng   +8 more
wiley   +1 more source

A daily representation of Great Britain's energy vectors : Natural gas, electricity and transport fuels [PDF]

, 2013
In much of Europe there is a strong push to decarbonise energy demands, including the largest single end-use demand – heat. Moving heat demands over to the electrical network poses significant challenges and the use of hybrid energy vector and storage ...
Hall, Peter J., Kelly, Nicolas, Rennie, Anthony J.R., Wilson, I.A.Grant   +3 more
core   +2 more sources

Supraparticles Composed of Graphitic Carbon Nitride Nanoparticles and Silica‐Supported Horseradish Peroxidase as Customizable Hybrid Catalysts for Photo‐Biocatalytic Cascade Reactions in Continuous Flow

Advanced Functional Materials, EarlyView.
Herein presented supraparticles combine the nanoparticulate photocatalyst graphitic carbon nitride with the enzyme horseradish peroxidase, which is immobilized on silica nanoparticles. In an optimized compatibility range, both catalysts operate effectively within the hybrid supraparticles and catalyze a cascade reaction consisting of the photocatalytic
Bettina Herbig, Egzon Cermjani, Doris Hanselmann, Johannes Prieschl, Angelika Schmitt, Michael S. Moritz, Christian Papp, Greta Nölke, Stefano Di Fiore, Christoph Deckers, Thomas H. Rehm, Susanne Wintzheimer   +11 more
wiley   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

Advanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva, Giulio Fatti, Emanuel Carlos, Guilherme Ferreira, Sumita Goswami, Suman Nandy, Luiz H. C. Mattoso, Elvira Fortunato, Caio G. Otoni, Rodrigo Martins   +9 more
wiley   +1 more source

Application of large underground seasonal thermal energy storage in district heating system: A model-based energy performance assessment of a pilot system in Chifeng, China [PDF]

, 2018
Seasonal thermal energy storage (STES) technology is a proven solution to resolve the seasonal discrepancy between heating energy generation from renewables and building heating demands.
Guo, Fang, Hensen, Jan L.M., Torrens, J. Ignacio, Xu, Luyi, Yang, Xudong   +4 more
core   +2 more sources

Defects Dynamic in Photo‐Excited CeO2 and their Influence on CO2 Photoreduction

Advanced Functional Materials, EarlyView.
X‐ray photoelectron spectroscopy study under light excitation is presented to track the defect dynamic (Ce4+ to Ce3+) in CeO2. Surface enhanced Raman spectroscopy confirmed the key role of Ce3+ states in controlling charge and energy transfer across the CeO2‐dye molecule interface.
Rambabu Yalavarthi, Shashi B. Mishra, Olivier Henrotte, Emiliano Cortes   +3 more
wiley   +1 more source

Comparative Analysis of Levelized Cost of Heat in Implemented and Calculated Heat Supply Systems with Heat Pumps in Ukraine

Energies
The adoption of heat pumps in Ukraine is increasing, yet precise data on their economic viability are limited. This study compares the Levelized Cost of Heat (LCOH) in implemented and calculated heat pump systems under Ukrainian conditions.
Valentyna Stanytsina, Vitalii Horskyi, Serhii Danyliv, Artur Zaporozhets, Svitlana Kovtun, Oleksandr Maevsky, Iurii Garbuz, Volodymyr Artemchuk   +7 more
doaj   +1 more source

Geothermal ground heat exchangers in Malta : thermal performance assessment of infill grouts [PDF]

, 2013
The aim of this paper was to assess the thermal conductivity of proprietary grout mixes versus local ones in Malta. Ground source heat pump (GSHP) systems consume 75% less electricity than conventional environmental control systems and have lower ...
Buhagiar, Vincent, Passive & Low Energy Architecture (PLEA), PLEA2013 - 29th Conference, Sustainable Architecture for a Renewable Future, Runco, Lara   +3 more
core