Results 91 to 100 of about 208,071 (358)

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

Coherent Control of Nitrogen Nuclear Spins via the VB−${\rm V}_B^-$‐Center in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
This study demonstrates coherent control of 15N nuclear spins coupled to VB−${\text{V}}_{\text{B}}^{-}$ centers in isotope‐enriched hexagonal boron nitride. Selective addressing via spin‐state mixing enables Rabi driving, quantum gates, and coherence times exceeding 10 μs$\umu{\rm s}$.
Adalbert Tibiássy, Charlie J. Patrickson, Thomas Poirier, James H. Edgar, Bruno Lopez‐Rodriguez, Viktor Ivády, Isaac J. Luxmoore   +6 more
wiley   +1 more source

Performance Prediction Model Based on Multi-Task Learning and Co-Evolutionary Strategy for Ground Source Heat Pump System

IEEE Access, 2019
In order to effectively predict the performance of ground source heat pump system, a performance prediction method is proposed in this paper. Based on the basic model of forward neural network, the algorithm predicts the performance data of ground source
Zhaoyi Zhuang, Chen Wei, Bing Li, Peng Xu, Yifei Guo, Jiachang Ren   +5 more
doaj   +1 more source

Crawl space assisted heat pump [PDF]

A variety of experiments and simulations, currently being designed or underway, to determine the feasibility of conditioning the source air of an air to air heat pump using stored ground heat or cool to produce higher seasonal COP's and net energy ...
Ternes, M. P.
core   +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

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

COOLING DEMONSTRATION EXPERIMENT OF A FLOW-RATE CONTROLLED GROUND SOURCE HEAT PUMP SYSTEM USING A LINING BOREHOLE GROUND HEAT EXCHANGER

, 2021
Misaki KASHIOKA, Yosuke Sasaki, Hiroaki TERASAKI, Teruyuki FUKUHARA, Haruki TANIGUCHI, Akihisa YASUMOTO   +5 more
openalex   +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  

High Entropy Wide‐Bandgap Borates with Broadband Luminescence and Large Nonlinear Optical properties

Advanced Functional Materials, EarlyView.
High‐entropy rare‐earth borates exhibit excellent nonlinear optical and broadband luminescence properties arising from multi‐component doping, chemical disorder, increased configurational entropy, and increased lattice and electronic anharmonicity. This formulation enabled us to obtain a large, environmentally stable single crystal with 3X higher laser‐
Saugata Sarker, Yu Wang, Yongwen Sun, Caeli Benyacko, Saeed S.I. Almishal, Tao Zhou, Zhiyu Zhang, Jadupati Nag, Himirkanti Sarkar, Jeffrey Shallenberger, Hemant Yennawar, Yang Yang, Jon‐Paul Maria, Zhiqiang Mao, Venkatraman Gopalan   +14 more
wiley   +1 more source

Application of a method for the sustainable planning and management of ground source heat pump systems in an urban environment, considering the effects of reciprocal thermal interference. [PDF]

Open Res Eur, 2022
Belliardi M, Soma L, Perego R, Pera S, Di Sipio E, Zarrella A, Carnieletto L, Galgaro A, Badenes B, Pasquali R, Bertermann D, Sanner B.   +11 more
europepmc   +1 more source