Development and evaluation of a multi-functional heat pump with embedded thermal storage

IF 6.9 2区工程技术 Q2 ENERGY & FUELS Applied Thermal Engineering Pub Date : 2025-02-07 DOI:10.1016/j.applthermaleng.2025.125862

Yifeng Hu, Bo Shen

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Abstract

We developed and tested a novel multi-functional packaged vertical heat pump designed for multi-family buildings, capable of providing space cooling, space heating, water heating, and energy storage integration. The system employs a 3-speed scroll compressor and supports energy-efficient cooling and heating across different ambient conditions, while utilizing both indoor and outdoor air sources for water heating. Key performance metrics include an integrated energy efficiency ratio of 18.0 for cooling, a heating seasonal performance factor of 10.0, and a coefficient of performance (COP) of 2.1 for heating in cold climates down to −15 ˚C. Additionally, the system delivers an annual water heating COP greater than 4.0, with outstanding performance in combined space cooling and water heating modes, achieving a total COP of 8.8 by recovering condenser waste heat. The heat pump also demonstrated thermal energy storage capabilities, integrating with phase change material systems to store heating and cooling energy. This versatile system offers a promising solution for improving energy efficiency and sustainability in multi-family buildings, providing high-performance heating, cooling, and water heating across a range of climates.

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嵌入式蓄热式多功能热泵的研制与评价

我们研发并测试了一种新型的多户型建筑多功能包装立式热泵，能够提供空间制冷、空间供暖、水加热和储能一体化。该系统采用3速涡旋压缩机，支持不同环境条件下的节能制冷和供暖，同时利用室内和室外空气源进行水加热。关键性能指标包括制冷的综合能效比为18.0，采暖季节性能系数为10.0，在- 15˚C的寒冷气候下采暖的性能系数（COP）为2.1。此外，该系统提供的年度水加热COP大于4.0，在空间冷却和水加热组合模式下具有出色的性能，通过回收冷凝器余热实现总COP为8.8。热泵还展示了热能储存能力，与相变材料系统集成以存储加热和冷却能量。这种多功能系统为提高多户建筑的能源效率和可持续性提供了一个有前途的解决方案，在各种气候条件下提供高性能的加热，冷却和水加热。

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来源期刊

Applied Thermal Engineering 工程技术-工程：机械

CiteScore

11.30

自引率

15.60%

发文量

1474

审稿时长

57 days

期刊介绍： Applied Thermal Engineering disseminates novel research related to the design, development and demonstration of components, devices, equipment, technologies and systems involving thermal processes for the production, storage, utilization and conservation of energy, with a focus on engineering application. The journal publishes high-quality and high-impact Original Research Articles, Review Articles, Short Communications and Letters to the Editor on cutting-edge innovations in research, and recent advances or issues of interest to the thermal engineering community.