Simulation of economic, energy-saving, and environmental benefits of the centralized-decentralized two-stage heating mode

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

Energy and Buildings Pub Date : 2025-05-12 DOI:10.1016/j.enbuild.2025.115869

Lingyan Li , Chenxi Zhang , Haoming Xia , Mimi Duan , Jixian Yang

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Abstract

The centralized heating system (CH) effectively addresses low temperature issues but is limited by fixed operating hours, reduced flexibility, and energy waste during the heating period. This paper introduces a centralized-decentralized two-stage (CD-TSH), room-based, time-scheduled heating model. Using DeST software, it compares the heating load and energy consumption across different family schedules and heating modes, while also assessing their economic, energy-saving, and environmental impacts. The results indicate that the centralized-air source heat pump (C-ASHP) and centralized-split air conditioner (C-SAC) modes provide the greatest overall benefits for families with daytime occupants (Family X) and families without daytime occupants (Family Y), respectively. The annual life cycle costs for the two types of families are reduced by 5.58 % and 12.12 %, respectively, compared to CH, with economic costs decreasing by 3.65 % and 10.36 %. The energy consumption and pollutant emissions of Family X are reduced by 50.87 %, while those of Family Y decrease by 53.45 %, demonstrating substantial advantages in terms of economics, energy-savings, and environmental impact. CD-TSH, room-based, time-scheduled heating model, compared to traditional centralized heating, enhances flexibility in temperature control, improves user comfort, optimizes energy efficiency, and provides substantial economic, energy-saving, and environmental benefits. It offers an innovative solution for achieving carbon neutrality goals.

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模拟了集中-分散两级供热方式的经济、节能、环保效益

集中供暖系统（CH）有效地解决了低温问题，但受到固定运行时间、灵活性降低和供暖期间能源浪费的限制。本文介绍了一种基于房间的集中-分散两阶段（CD-TSH）定时供热模型。使用DeST软件，它比较了不同家庭时间表和供暖模式下的供暖负荷和能耗，同时还评估了它们对经济、节能和环境的影响。结果表明，集中式空气源热泵（C-ASHP）和集中式分体式空调（C-SAC）模式分别为有日间人员的家庭（家庭X）和没有日间人员的家庭（家庭Y）提供了最大的综合效益。两类家庭的年生命周期成本分别比CH降低了5.58%和12.12%，经济成本分别降低了3.65%和10.36%。X家族的能耗和污染物排放量降低了50.87%，Y家族的能耗和污染物排放量降低了53.45%，在经济性、节能性和环境影响方面具有显著优势。CD-TSH是一种基于房间的定时供暖模式，与传统的集中供暖相比，增强了温度控制的灵活性，提高了用户的舒适度，优化了能源效率，并提供了可观的经济、节能和环境效益。它为实现碳中和目标提供了一个创新的解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.