High-temperature heat pump energy storage system with industrial wastewater heat recovery

ZHANG Haobin; MEI Weiguang; XU Bowen; LI Minhua; MENG Yirong; XU Chao

doi:10.19799/j.cnki.2095-4239.2025.0963

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High-temperature heat pump energy storage system with industrial wastewater heat recovery

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

- High-temperature heat pump energy storage system with industrial wastewater heat recovery
- Energy Storage Science and Technology Vol. 15, Issue 3, Pages: 769-780(2026)
- 作者机构：
  
  1.华北电力大学能源动力与机械工程学院，北京 102206
  2.浙江绿储科技有限公司，浙江湖州 313002
  3.湖州工业控制技术研究院，浙江湖州 313098
- 作者简介：
- 基金信息：
- DOI：10.19799/j.cnki.2095-4239.2025.0963
  CLC： TK 123
- Received：27 October 2025，
  
  Revised：2025-11-14，
  
  Published：28 March 2026
- 稿件说明：
移动端阅览
章颢缤, 梅炜光, 胥博文, 等. 耦合余热回收的高温热泵储能供热系统研究[J]. 储能科学与技术, 2026, 15(3): 769-780.

ZHANG Haobin, MEI Weiguang, XU Bowen, et al. High-temperature heat pump energy storage system with industrial wastewater heat recovery[J]. Energy Storage Science and Technology, 2026, 15(3): 769-780.
章颢缤, 梅炜光, 胥博文, 等. 耦合余热回收的高温热泵储能供热系统研究[J]. 储能科学与技术, 2026, 15(3): 769-780. DOI： 10.19799/j.cnki.2095-4239.2025.0963.

ZHANG Haobin, MEI Weiguang, XU Bowen, et al. High-temperature heat pump energy storage system with industrial wastewater heat recovery[J]. Energy Storage Science and Technology, 2026, 15(3): 769-780. DOI： 10.19799/j.cnki.2095-4239.2025.0963.

摘要

为提高可再生能源消纳能力并实现工业余热的高效回收与再利用，本研究提出了一种基于高温热泵储能(pumped thermal energy storage

PTES)技术的工业余热回收与高温蒸汽供热系统。该系统通过在电网低谷时段利用高温热泵回收工业废水中的低温热量，结合固体储能单元实现热能的储存与释放，提供全天候高温蒸汽供热。基于Aspen Plus与MATLAB平台建立了热泵储能系统的热力学仿真模型，涵盖压缩机、膨胀机、换热器、蒸汽发生器及固体储能模块，模拟不同工况下能量流动与性能响应。仿真结果显示，在工业废水温度为60℃的条件下，空气、氩气、氮气和二氧化碳4种循环工质的系统性能系数(COP)分别为1.519、1.478、1.523和1.327。在固体储能单元分析中，孔隙率为0.35，颗粒粒径为0.03～0.05 m时可获得最优热效率和COP性能。进一步以空气为工质开展系统敏感性分析，评估系统关键参数对性能的影响。结果显示，较高的余热温度与较低的压缩机出口温度有助于系统性能提升。当余热温度为100℃、压缩机出口温度为400℃时，系统COP可达到1.658。此外，设备成本估算结果显示，压缩机和电动机成本占比最大，这表明压缩与功率转换单元是经济性优化的关键环节。研究结果可为高温热泵储能系统在工业供热领域的工程设计与可行性分析提供理论依据与参考。

Abstract

To enhance the renewable energy utilization and improve the recovery and reuse of industrial waste heat

this study proposes a high-temperature steam supply system utilizing pumped thermal energy storage (PTES) with wastewater heat recovery. The system adopts a high-temperature heat pump to extract low grade heat from wastewater during off-peak periods. It integrates a solid thermal storage unit to accumulate and release heat to achieve continuous high-temperature steam supply. A thermodynamic model of the PTES system was developed in Aspen Plus and MATLAB. The model comprises a compressor

an expander

heat exchangers

a steam generator

and a solid storage module for simulating the energy transfer. Using the model

the system performance under various operating conditions was assessed. The simulation results show that when the wastewater temperature is 60℃

the coefficients of performance (COP) for air

argon

nitrogen

and carbon dioxide are 1.519

1.478

1.523 and 1.327

respectively. For the solid thermal storage unit

a porosity of 0.35 and particle diameters between 0.03 and 0.05 m yield the optimal thermal efficiency and COP. A sensitivity analysis using air as the working fluid evaluated the influence of key parameters. The results show that higher wastewater temperatures and lower compressor outlet temperatures enhance system performance. When the waste heat temperature reaches 100℃ and the compressor outlet temperature 400℃

the system COP increases to 1.658. An equipment cost estimation shows that the compressor and the electric motor contribute the largest shares in the total cost

suggesting that compression and power conversion units should be the main targets of economic optimization. The results provide technical support and useful references for the feasibility assessment and engineering design of high-temperature PTES systems for industrial heating.

关键词

Keywords

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