Development and simulated evaluation of inter-seasonal power-to-heat and power-to-cool with underground thermal storage for self-consumption of surplus solar energy in buildings

Energy Conversion and Management, Год журнала: 2024, Номер 320, С. 119013 - 119013

Опубликована: Сен. 5, 2024

Язык: Английский

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Numerical and experimental study on the influence of thermal behavior of phase change plate in high temperature and low ventilation speed environment

Journal of Energy Storage, Год журнала: 2025, Номер 115, С. 115977 - 115977

Опубликована: Фев. 27, 2025

Язык: Английский

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Simulation and experimental study on the performance of solar phase change slurry direct evaporation photovoltaic/thermal heat pump

Energy, Год журнала: 2025, Номер unknown, С. 135985 - 135985

Опубликована: Апрель 1, 2025

Язык: Английский

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Performance of photovoltaic thermal–ground source heat pump with a phase change water tank

Energy and Buildings, Год журнала: 2025, Номер unknown, С. 115758 - 115758

Опубликована: Апрель 1, 2025

Язык: Английский

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Efficacy of absorber-plateless PV/T system: With low-cost and energy-efficient plastic capillary exchanger

Applied Thermal Engineering, Год журнала: 2025, Номер unknown, С. 126544 - 126544

Опубликована: Апрель 1, 2025

Язык: Английский

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Performance simulation and energy efficiency analysis of multi-energy complementary HVAC system based on TRNSYS

Applied Thermal Engineering, Год журнала: 2024, Номер 257, С. 124378 - 124378

Опубликована: Сен. 7, 2024

Язык: Английский

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Performance and PV benefits analysis of multi-source renewable energy systems for different types of buildings on university campus

Renewable Energy, Год журнала: 2024, Номер 237, С. 121522 - 121522

Опубликована: Окт. 5, 2024

Язык: Английский

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Heat transfer and system performance of a novel solar ground-source heat-pump system with borehole heat exchangers using a combined parallel and series connection

Frontiers in Energy Research, Год журнала: 2024, Номер 12

Опубликована: Июль 26, 2024

A novel BHEs is proposed that can overcome the problems associated with low heat-transfer efficiency of borehole heat exchangers (BHEs) are connected in series (BHEs-S) and temperature differences parallel (BHEs-P). The new BHE uses a combined connection (BHEs-CSP), which further be classified into individual in-series in-parallel zones. numerical model BHEs-CSP then developed to optimize key design parameters such as spacing, number stages, heat-extraction methods. results show that, optimal configuration, average soil 6.70°C higher than for parallel. Furthermore, improved by 4.1% compared series. It recommended distance between buried pipes area should 5.25 m, pipe groups 4. To study overall performance solar-assisted ground-source heat-pump (SAGSHP-CSP), TRNSYS developed. area- heat-storage-ratios (for zone zone), using SAGSHP-CSP, 1:4 3:2, respectively. Under these conditions, system coefficient (SCOP) over 5.2 COP SCOP 9.8% 13.0% GSHP systems BHEs-P. an improvement 18.4% 18.2%, BHEs-S, reported.

Язык: Английский

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EVALUATION OF ENERGY SAVING EFFICIENCY OF BOILER COMBINED WITH HEAT PUMP FOR SUPPLEMENTARY FEED WATER HEATING

Technical Education Science/Giáo dục Kỹ thuật, Год журнала: 2024, Номер 19(06), С. 56 - 65

Опубликована: Дек. 28, 2024

This paper investigates the integration of heat pumps for heating boiler feedwater and evaluates impacts temperature condensate recovery rates on fuel consumption, energy efficiency, CO2 emissions. The results show that using significantly reduces especially when increases rate is high. COP (Coefficient Performance) pump gradually decreases as water rises; however, at lower temperatures yields better economic efficiency. Economically, provide substantial benefits, with maximum cost savings achieved a 75°C. Additionally, integrating emissions, particularly in boilers without recovery, highest emission reduction reaching 17.8 kgCO2 per ton steam. These findings demonstrate not only energy-efficient cost-effective but also contributes to environmental protection by reducing greenhouse gas

Язык: Английский

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A techno-economic performance study of synergies between large-scale solar district heating systems and building renovations under Tibetan Plateau climate conditions

Energy and Buildings, Год журнала: 2024, Номер unknown, С. 115264 - 115264

Опубликована: Дек. 1, 2024

Язык: Английский

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