A clean energy supply system for buildings in severe cold regions based on phase change walls

YANG Lizhong; CHENG Monan; GAO Long; BAI Jingyang; XIAO Fei

doi:10.19799/j.cnki.2095-4239.2026.0138

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A clean energy supply system for buildings in severe cold regions based on phase change walls

Special Issue on Multi\-Scenario Applications of Thermal and Cold Energy Storage | 更新时间：2026-07-01

- A clean energy supply system for buildings in severe cold regions based on phase change walls
- Energy Storage Science and Technology Vol. 15, Issue 3, Pages: 993-1003(2026)
- 作者机构：
  
  1.东北电力大学能源与动力工程学院，吉林吉林 132012
  2.南京航空航天大学民航学院，江苏南京 250016
- 作者简介：
- 基金信息：
- DOI：10.19799/j.cnki.2095-4239.2026.0138
  CLC： TK 124
- Received：05 February 2026，
  
  Revised：2026-02-23，
  
  Published：28 March 2026
- 稿件说明：
移动端阅览
杨立中, 程默楠, 高龙, 等. 基于相变墙体的严寒地区建筑清洁供能系统[J]. 储能科学与技术, 2026, 15(3): 993-1003.

YANG Lizhong, CHENG Monan, GAO Long, et al. A clean energy supply system for buildings in severe cold regions based on phase change walls[J]. Energy Storage Science and Technology, 2026, 15(3): 993-1003.
杨立中, 程默楠, 高龙, 等. 基于相变墙体的严寒地区建筑清洁供能系统[J]. 储能科学与技术, 2026, 15(3): 993-1003. DOI： 10.19799/j.cnki.2095-4239.2026.0138.

YANG Lizhong, CHENG Monan, GAO Long, et al. A clean energy supply system for buildings in severe cold regions based on phase change walls[J]. Energy Storage Science and Technology, 2026, 15(3): 993-1003. DOI： 10.19799/j.cnki.2095-4239.2026.0138.

摘要

严寒地区建筑是能源消耗和温室气体排放的关键领域，相变材料的应用对于严寒地区建筑节能具有重要意义。针对严寒地区气候特点，本研究制备了适用于该环境的复合相变材料(CPCM)，并系统测试了其相变温度、相变潜热、热导率等关键物性参数。利用该CPCM的建筑与包含空气源热泵、储热装置、风力发电机及光伏的清洁供能系统相结合，通过TRNSYS仿真平台分析了相变墙体建筑负荷与相变特性，并对清洁供能系统开展了能耗、㶲、经济、环境(4E)综合分析。结果表明，与普通建筑相比，相变墙体建筑的供热量减少410 MWh，供冷量增加171 MWh，供电量减少297 MWh；系统㶲效率降低8.4%，产品成本水平(levelized cost of energy，LCOE)减少6.9%，CO

排放量减少4.3%。为进一步优化配置，采用响应面方法优化CPCM墙体厚度、风力发电机台数及蓄电池容量，当风力发电机数量为9台、CPCM厚度为30 mm、电池容量为1300 kWh时，系统能量COP达到最大值4.59。本研究为严寒地区近零能耗建筑的节能设计与优化提供了理论支撑和实践参考。

Abstract

Buildings in severe cold regions represent a critical sector for energy consumption and greenhouse gas emissions due to long heating seasons and high thermal demand. In this context

the application of phase change materials (PCMs) plays an important role in improving building energy efficiency and reducing environmental impacts. In this study

a composite phase change material (CPCM) suitable for severe cold climatic conditions was developed based on regional climate characteristics. The CPCM was experimentally prepared

and its key thermophysical properties

including phase change temperature

latent heat

and thermal conductivity

were systematically characterized to verify its applicability for building envelope integration. The CPCM was then incorporated into the building wall structure and coupled with a clean energy supply system composed of an air-source heat pump

thermal storage devices

wind turbines

and photovoltaic panels. A dynamic simulation model was established using the TRNSYS platform to analyze the building thermal loads and phase change behavior of the CPCM wall throughout the annual operation period. On this basis

a comprehensive evaluation of the integrated clean energy system was carried out using a 4E assessment framework

covering energy

exergy

economic

and environmental performance. The simulation results demonstrate that

compared with a conventional building

the phase change wall building shows a reduction of 410 MWh in annual heating supply

while the annual cooling supply increases by 171 MWh. In addition

the electricity supply demand of the system decreases by 297 MWh. From the exergy perspective

the overall system exergy efficiency decreases by 8.4%

indicating changes in energy quality utilization caused by the integration of phase change walls. From the economic perspective

the levelized cost of energy (LCOE) increases by 6.9%

reflecting the additional investment associated with CPCM application and system configuration. Despite this economic incr

ease

the environmental analysis reveals that CO

emissions are reduced by 4.3%

highlighting the emission reduction potential of the proposed system. To further improve system performance

response surface methodology was employed to optimize three key design parameters: CPCM wall thickness

number of wind turbines

and battery capacity. The optimization results indicate that the optimal configuration is achieved when the number of wind turbines is 9

the CPCM thickness is 30 mm

and the battery capacity is 1300 kWh

under which the system energy COP reaches a maximum value of 4.59. Overall

this study provides a systematic framework for material development

system integration

performance evaluation

and parameter optimization

offering theoretical support and practical guidance for the design and optimization of near-zero energy buildings in severe cold regions.

关键词

Keywords

references

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