Performance evaluation and optimization research of a direct condensation aluminum heating panel integrated with the air source heat pump system

IF 6.6 2区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Energy and Buildings Pub Date : 2025-05-08 DOI:10.1016/j.enbuild.2025.115841

Suola Shao , Wenjian Wei , Wenjuan Li , Chengcheng Xu

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引用次数: 0

Abstract

The radiant heating system attracts widespread attention for its outstanding thermal comfort. To promote and optimize this distributed heating system, this study proposed a direct condensation aluminum heating panel (DCAHP) integrated with the air source heat pump (ASHP) system and presented a reliable method for evaluating and optimizing the DCAHP performance. A heat transfer and flow model of the DCAHP was established, and its accuracy was validated through experiments. The deviation between the thermal indicators obtained from numerical simulations and experimental results is within 10 %. Combining economic indicators with the model, the thermo-economic performance can be comprehensively evaluated. Simulation and experimental results indicate that the point where the outlet refrigerant completes condensation has the optimum thermo-economic indicator (C_pro). The length of the copper tube correlates highest with the thermal performance improvement. Finally, a heuristic approach, adopting the gradient descent and particle swarm optimization algorithms, was proposed to optimize the geometric configuration of the DCAHP. The results indicate that for the optimized DCAHP version, the heating capacity is enhanced from 2049.1 W to 2058.4 W, while the initial capital cost is reduced by 8.7 %. Additionally, the refrigerant pressure drop within DCAHP has experienced a 10 % reduction, decreasing from 64.5 kPa to 56.6 kPa. These findings emphasize the potential of DCAHP systems to improve energy efficiency and thermal comfort for winter heating. The proposed model and heuristic optimization methods provide valuable insights for optimizing radiant heating system, contributing to the development of sustainable and cost-effective heating solutions.

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与空气源热泵系统集成的直接冷凝铝加热板性能评价与优化研究

辐射供暖系统因其出色的热舒适性而受到广泛关注。为了推广和优化该分布式供暖系统，本研究提出了一种与空气源热泵（ASHP）系统集成的直接冷凝铝加热板（DCAHP），并提出了一种评估和优化DCAHP性能的可靠方法。建立了DCAHP的传热与流动模型，并通过实验验证了模型的准确性。数值模拟得到的热指标与实验结果的偏差在10%以内。将经济指标与模型相结合，可以综合评价热经济性能。模拟和实验结果表明，出口冷媒完成冷凝的点具有最佳的热经济指标（Cpro）。铜管长度与热工性能的改善相关度最高。最后，提出了一种采用梯度下降算法和粒子群算法的启发式方法来优化DCAHP的几何构型。结果表明，优化后的DCAHP供热容量由2049.1 W提高到2058.4 W，初始投资降低8.7%。此外，DCAHP内的制冷剂压降降低了10%，从64.5 kPa降至56.6 kPa。这些发现强调了DCAHP系统在提高冬季供暖的能源效率和热舒适性方面的潜力。提出的模型和启发式优化方法为优化辐射供暖系统提供了有价值的见解，有助于开发可持续和经济高效的供暖解决方案。

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来源期刊

Energy and Buildings 工程技术-工程：土木

CiteScore

12.70

自引率

11.90%

发文量

863

审稿时长

38 days

期刊介绍： An international journal devoted to investigations of energy use and efficiency in buildings Energy and Buildings is an international journal publishing articles with explicit links to energy use in buildings. The aim is to present new research results, and new proven practice aimed at reducing the energy needs of a building and improving indoor environment quality.