Machine learning-driven hybrid cooling system for enhanced energy efficiency in multi-unit residential buildings

Energy and Buildings, Год журнала: 2025, Номер unknown, С. 115613 - 115613

Опубликована: Март 1, 2025

Язык: Английский

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Design, development and performance evaluation of a 3D-printed desiccant wheel using poly-lactic acid and wood filaments for sustainable HVAC systems

Building and Environment, Год журнала: 2025, Номер unknown, С. 112889 - 112889

Опубликована: Март 1, 2025

Язык: Английский

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Review Analysis for the Energy Performance of Integrated Air-Conditioning Systems

Energies, Год журнала: 2025, Номер 18(7), С. 1611 - 1611

Опубликована: Март 24, 2025

In response to the significant increase in cooling needs for built environment due climate change, hybrid air conditioning units can provide energy efficient alternatives vapor compression systems. This paper reviews reported performance of integrated systems consisting three types options: direct expansion (DX) combined with evaporative cooling, DX desiccant, and desiccant. addition, analyses integrating these phase change materials (PCMs) and/or photovoltaic (PV) are considered. The evaluated generally confirm that offer substantial saving potential compared traditional units, resulting economic environmental benefits. Specifically, reduce annual consumption space by 87% units. review analysis indicates have a coefficient (COP) ranging from 6 16 merely 3 5 conventional Additionally, liquid desiccant notable improvements dehumidification efficiency savings, payback periods as low years. Future work should focus more on real-building applications conducting comprehensive cost–benefit analyses, especially when than two technologies together.

Язык: Английский

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Energy and materials analysis of wet channels structures for evaporative cooling systems manufactured by FFF technique with foam materials

Applied Thermal Engineering, Год журнала: 2024, Номер 256, С. 124165 - 124165

Опубликована: Авг. 13, 2024

Язык: Английский

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Performance study on a hybrid solid desiccant‐vapor compression air‐conditioning system for hot‐humid ambient conditions

Heat Transfer, Год журнала: 2024, Номер 54(1), С. 507 - 529

Опубликована: Сен. 18, 2024

Abstract The paper focuses on the simulation and testing of a hybrid solid desiccant‐vapor compression air‐conditioning system under different hot‐humid climates. is carried out by BLUEJ programming framework. Air at lowest achievable temperatures from desiccant cooling supplied to standard vapor (VCAS). capacities three modes 1, 2, 3, indicating supply air conditions cabin, are reported in paper. This expresses trade‐off between having comfort reasonable inside space with energy efficiency as inflection point. more study moved towards point efficiency, higher reduction conditioner. demonstrated capacity savings when operated namely 3. substantial provided Mode 3 71%, 57%, 37%, respectively. If made provide deeply savings, then could save up 77% system. operate solely milestone for occupants any system, would deliver give 32% 41% which significant savings. From results performance study, it inferred that provides compared conditioner, especially ambient conditions. thus establishes itself an effective pre‐cooler unit VCAS. analyzed aspects existing cooling. newer operational approach, using this humidity ratios greater than 15 kg −1 d.a.

Язык: Английский

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Experimental investigations of a desiccant-coated M-cycle cooler as a step towards net zero air-conditioning

Energy Conversion and Management, Год журнала: 2024, Номер 322, С. 119146 - 119146

Опубликована: Окт. 15, 2024

Язык: Английский

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Performance and Applicability Analysis of Indirect Evaporative Cooling Units in Data Centers Across Various Humidity Regions

Buildings, Год журнала: 2024, Номер 14(11), С. 3623 - 3623

Опубликована: Ноя. 14, 2024

Indirect evaporative cooling (IEC), which utilizes natural sources, is an advanced and promising technology to reduce the energy consumption of systems in a data center (DC). This study presents model IEC air-conditioning unit DC using TRNSYS simulation software validated actual operational investigate adaptability units centers located regions with varying humidity levels, providing reference for their application promotion DCs. Based on this premise, authors analyzed meteorological characteristics Urumqi (a dry region), Beijing region medium humidity), Shanghai high are representative cities different zones. The analysis identified annual operating hours unit’s three operation modes, including fresh-air indirect heat transfer (FAIHT), IEC, hybrid. Simultaneously, conducted yearly determined time change curves consumption, hourly coefficient performance (COP) throughout year, mechanical various locations. results indicate that highly effective promoting efficiency regions. Dry locations demonstrate greatest adaptability, followed by and, finally, humidity. findings provide significant cost-effectiveness when deployed typical urban DCs across zones China. average power-usage effectiveness (PUE) each city’s utilizing less than 1.3, cost savings exceed 30%.

Язык: Английский

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Thermal challenges in heterogeneous packaging: Experimental and machine learning approaches to liquid cooling

Applied Thermal Engineering, Год журнала: 2024, Номер unknown, С. 125081 - 125081

Опубликована: Ноя. 1, 2024

Язык: Английский

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