Unlocking enhanced thermal conductivity in polymer blends through active learning DOI Creative Commons
Jiaxin Xu, Tengfei Luo

npj Computational Materials, Год журнала: 2024, Номер 10(1)

Опубликована: Апрель 16, 2024

Abstract Polymers play an integral role in various applications, from everyday use to advanced technologies. In the era of machine learning (ML), polymer informatics has become a vital field for efficiently designing and developing polymeric materials. However, focus predominantly centered on single-component polymers, leaving vast chemical space blends relatively unexplored. This study employs high-throughput molecular dynamics (MD) simulation combined with active (AL) uncover enhanced thermal conductivity (TC) compared constituent polymers. Initially, TC about 600 amorphous polymers 200 varying blending ratios are determined through MD simulations. The optimal representation method is identified, which involves weighted sum approach that extends existing blends. An AL framework, combining ML, employed explore approximately 550,000 unlabeled framework proves highly effective accelerating discovery high-performance transport. Additionally, we delve into relationship between TC, radius gyration ( R g ), hydrogen bonding, highlighting roles inter- intra-chain interactions transport A significant positive association improvement indirect contribution H-bond interaction enhancement revealed log-linear model odds ratio calculation, emphasizing impact increasing enhancing blend TC.

Язык: Английский

Synergies and potential of hybrid solar photovoltaic-thermal desalination technologies DOI Creative Commons
Wei He, Gan Huang, Christos N. Markides

и другие.

Desalination, Год журнала: 2023, Номер 552, С. 116424 - 116424

Опубликована: Фев. 7, 2023

Solar desalination has emerged as a sustainable solution for addressing global water scarcity in the energy-water nexus, particularly remote areas developing countries. How to use light spectrum through solar devices can profoundly affect energy utilization, rates, off-grid applicability, and affordability. photovoltaic (PV) thermal (ST) respectively have enabled variety of interesting technologies, but resulting applications usually limit integration between be either electrically or thermally connected. Here this review paper explores smart co-uses heat electricity from sun improve efficiency, productivity, independence various processes. It is found that coupling photovoltaic-thermal (PVT) with could practical immediately deployable route plausibly more than current solutions, because combined electrical outputs PVT panels used synergistically catalyze improvement on specific consumption, production, well operational applications. Our preliminary analysis indicated an up 20 % lower cost PVT-desalination PV-desalination ST-desalination also challenges discussed.

Язык: Английский

Процитировано

62

Enhancement of photovoltaic module performance using passive cooling (Fins): A comprehensive review DOI Creative Commons

Hussein A. Kazem,

AliH.A. Al-Waeli,

Miqdam T. Chaichan

и другие.

Case Studies in Thermal Engineering, Год журнала: 2023, Номер 49, С. 103316 - 103316

Опубликована: Июль 17, 2023

Photovoltaic-thermal (PV/T) technology, combines the benefits of both solar photovoltaic (PV) and thermal systems into a single integrated solution. It is promising renewable energy technology that maximizes utilization offers multiple for sustainable power generation. A review discussion active passive management solutions PV included in this paper. Using fins on back focus paper terms its design performance parameters. Fins are used air, fluid, nanofluid PCM cooling PV/T systems. Installing them these improves their increases electrical efficiency together rate range between 8 to 10%. Furthermore, article examines different approaches designing implementing systems, as well how optimize results, addition exploring potential problems opportunities. Aiming at creating, manufacturing, utilizing, potentially promoting high-performance photovoltaic-based technologies which include purpose article.

Язык: Английский

Процитировано

52

Enhancement strategies in CO2 conversion and management of biochar supported photocatalyst for effective generation of renewable and sustainable solar energy DOI
Soheil Mohtaram,

Mohammad Sina Mohtaram,

Samad Sabbaghi

и другие.

Energy Conversion and Management, Год журнала: 2024, Номер 300, С. 117987 - 117987

Опубликована: Янв. 1, 2024

Язык: Английский

Процитировано

45

A Hygroscopic Composite Backplate Enabling Passive Cooling of Photovoltaic Panels DOI
Zhenpeng Li, Tao Ma, Fan Ji

и другие.

ACS Energy Letters, Год журнала: 2023, Номер 8(4), С. 1921 - 1928

Опубликована: Март 27, 2023

Cooling photovoltaics (PV) matters since elevated temperature reduces efficiency and lifetime, but it is a great challenge when simultaneously pursuing effective cooling, low material cost, light extra components. We herein propose composite backplate for the passive cooling of PV panels, which consists hygroscopic hydrogels with an adsorption-evaporative effect protective membranes. Besides, instant tough bonding conventional backsheet allows ease implementation. Consequently, demonstrates nondegrading performance during multiday field tests. Compared to normal panel good ventilation conditions, average reduction each day varies from 1.5 6.4 °C under different climate indicating absolute energy yield would increase by 0.57% 2.43% 25 °C. Considering nearly unchanged appearance, moderate weight increase, raw costs, this facilitates benefiting panels attainable.

Язык: Английский

Процитировано

43

Evaluating the shading effect of photovoltaic panels to optimize the performance ratio of a solar power system DOI Creative Commons

Jamal Jamal,

Ilyas Mansur,

A. H. A. Rasid

и другие.

Results in Engineering, Год журнала: 2024, Номер 21, С. 101878 - 101878

Опубликована: Фев. 9, 2024

The objective of this research is to examine the problems shading effect photovoltaic (PV) systems. This describes PV system installed on rooftop administration building at Polytechnic State Ujung Pandang-Makassar, Indonesia (called PNUP). To achieve proposed method, PVsyst application was applied evaluate effect, loss diagram and performance ratio (PR) over entire year using software. scheme also examines financial analysis system, namely: payback period (PBP) return investment (ROI). Four perspective designs photo voltaic-filled with different tilts azimuth were selected. Research results indicated that PR designs_1, 2, 3 4 were: 0.816, 0.817 0.815. energy losses for all 11.40 MWh (design_1); 11.38 (design_2); 11.67 (design_3) 11.04 (design_4). In addition, investigated define PBP ROI. ROI 8.2 years 145.2 % rate; 144.3% 7.8 155.2 rate 8.6 131.8% rate.

Язык: Английский

Процитировано

17

Simulation of integration of photovoltaic solar system with storage unit incorporating mixture of paraffin and nanoparticles DOI
Idir Mechai, Adel Almarashi, Waleed Hamali

и другие.

Journal of Energy Storage, Год журнала: 2024, Номер 82, С. 110513 - 110513

Опубликована: Янв. 17, 2024

Язык: Английский

Процитировано

16

Benchmarking reinforcement learning and prototyping development of floating solar power system: Experimental study and LSTM modeling combined with brown-bear optimization algorithm DOI
Mohamed E. Zayed, Shafiqur Rehman, Ibrahim A. Elgendy

и другие.

Energy Conversion and Management, Год журнала: 2025, Номер 332, С. 119696 - 119696

Опубликована: Март 14, 2025

Язык: Английский

Процитировано

3

Low‐Cost and Large‐Scale Producible Biomimetic Radiative Cooling Glass with Multiband Radiative Regulation Performance DOI
Xinping Zhang, Xiang Li, Fuqiang Wang

и другие.

Advanced Optical Materials, Год журнала: 2022, Номер 10(23)

Опубликована: Окт. 19, 2022

Abstract Common glass without spectral regulation effect cannot offer an energy‐saving function, and radiative cooling technology visible transparency satisfy the illumination esthetic demands. Herein, concept of utilizing a biomimetic beetle cuticle structure, guided by principles Chinese Taoist philosophy, is proposed to accomplish efficient regulation. Subsequently, low‐cost (Bio‐RC) presented, which can reduce temperature buildings throughout daytime blocking near‐infrared (NIR) radiation, conveying light, emitting heat within atmospheric window. Utilizing only three layers thin films, Bio‐RC achieves multi‐band regulation, avoids complicated preparation process, has potential for large‐scale production. Spectrometry reveals that exhibits effective light transmissivity 80.5%, mean NIR 10.3%, emissivity 94.8% A one‐month rooftop test demonstrates maximum cavity reduction 18.1 °C compared with common glass. Energy consumption analysis indicates conserve approximately 23.4% total energy per year The lower during daylight while preserving esthetics, making it suitable application in vehicles.

Язык: Английский

Процитировано

53

Techno-economic analysis of a hybrid photovoltaic-thermal solar-assisted heat pump system for domestic hot water and power generation DOI Creative Commons

Mustapha A. Obalanlege,

Jingyuan Xu, Christos N. Markides

и другие.

Renewable Energy, Год журнала: 2022, Номер 196, С. 720 - 736

Опубликована: Июль 12, 2022

This work investigates the techno-economic performance of a hybrid photovoltaic-thermal (PVT) solar-assisted heat-pump system for covering electrical and hot-water demands three-bedroom terraced house in Belfast, United Kingdom with four occupants. combines water-to-water heat pump PVT panels to deliver both electricity hot water domestic consumption. The array provides source low-temperature pump, while cooling thus preventing efficiency degradation that occurs at higher operating temperatures. Analyses have been performed arrays different size, including 12-panel, 20-panel 24-panel systems. Results show that, thanks its lower initial investment cost, most economically viable configuration household considered this is based on 12-panel total area 16.3 m2. has potential produce 2.4 MWh (gross) 2.0 per year, which equivalent just over 30% 80% under consideration, acting reduce consumption heating by little 60%. recurring yearly costs relative current energy systems use from grid natural gas, despite having costs. It also found can investigated household's annual CO2 emissions 910 kg year (about 18 tonnes lifetime 20 years) an generation incentive rate 5 p/kWh 21 p/kWh, aforementioned discounted payback period 14 years.

Язык: Английский

Процитировано

47

Clean and low-carbon heating in the building sector of China: 10-Year development review and policy implications DOI
Yazhou Nie, Mengsi Deng, Ming Shan

и другие.

Energy Policy, Год журнала: 2023, Номер 179, С. 113659 - 113659

Опубликована: Июнь 7, 2023

Язык: Английский

Процитировано

31