Economic analysis of electrically driven coupled heating and cooling energy supply system

JIANG Zhipeng; LI Shuaiqi; HE Shihui; SONG Wenji; FENG Ziping

doi:10.19799/j.cnki.2095-4239.2026.0073

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Economic analysis of electrically driven coupled heating and cooling energy supply system

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

- Economic analysis of electrically driven coupled heating and cooling energy supply system
- Energy Storage Science and Technology Vol. 15, Issue 3, Pages: 971-982(2026)
- 作者机构：
  
  1.中国科学院广州能源研究所，广东广州 510640
  2.中国科学技术大学能源科学与技术学院，安徽合肥 230027
- 作者简介：
- 基金信息：
- DOI：10.19799/j.cnki.2095-4239.2026.0073
  CLC： TK 14;TU 83
- Received：23 January 2026，
  
  Revised：2026-02-09，
  
  Published：28 March 2026
- 稿件说明：
移动端阅览
姜志鹏, 李帅旗, 何世辉, 等. 电力驱动冷热双供耦合供能系统经济性分析[J]. 储能科学与技术, 2026, 15(3): 971-982.

JIANG Zhipeng, LI Shuaiqi, HE Shihui, et al. Economic analysis of electrically driven coupled heating and cooling energy supply system[J]. Energy Storage Science and Technology, 2026, 15(3): 971-982.
姜志鹏, 李帅旗, 何世辉, 等. 电力驱动冷热双供耦合供能系统经济性分析[J]. 储能科学与技术, 2026, 15(3): 971-982. DOI： 10.19799/j.cnki.2095-4239.2026.0073.

JIANG Zhipeng, LI Shuaiqi, HE Shihui, et al. Economic analysis of electrically driven coupled heating and cooling energy supply system[J]. Energy Storage Science and Technology, 2026, 15(3): 971-982. DOI： 10.19799/j.cnki.2095-4239.2026.0073.

摘要

针对工业园区化石能源供热和制冷主机结合冷却塔供冷的冷热独立供应现状，为实现低碳供能的发展目标，本研究提出一种基于热泵与蓄能的电力驱动冷热双供供能耦合系统。通过结合能源现状，建立了该系统的数值模型，研究了供冷温度(7~20℃)和供热温度(50~120℃)对热力性能的影响，且从是否兼顾制冷需求两个维度对比了该系统与传统的燃煤、燃气及电锅炉供能方案的经济性和环境效益。研究结果表明，在性能分析中，当制热温度为120℃、制冷温度为7℃时，系统的性能系数(COP)最大时中间温度为71℃，对应值为1.733。在经济性分析中，兼顾制冷需求时，该系统在50~120℃温区的全寿命周期成本最低，其日运行成本相比于电锅炉、燃煤锅炉和燃气锅炉分别节省了73.9%、57.4%和80%。在碳排放方面，该系统的碳排放量显著低于电锅炉和燃煤锅炉，当供热温度为60℃时，其碳排放仅为电锅炉的24%，在大多数应用场景下亦优于燃气锅炉方案。综上，从经济效益与环境效益评估来看，热泵在制冷与供热需求并存的场景中最具优势。

Abstract

In response to the current situation in industrial parks where fossil energy is used independently for heating and cooling

with cooling towers providing cooling

and to achieve the goal of low-carbon energy supply

this paper proposes an electricity-driven dual heating and cooling energy coupling system based on heat pumps and energy storage. Based on current energy conditions

a numerical model of the system was established to study the impact of cooling temperatures (7—20℃) and heating temperatures (50—120℃) on thermodynamic performance. The system's economic and environmental benefits were also compared with traditional coal-fired

gas-fired

and electric boiler energy supply schemes

with and without consideration of cooling demand. The results indicate that

in the performance analysis

when the heating temperature is 120℃ and the cooling temperature is 7℃

the system achieves a maximum coefficient of performance (COP) of 1.733 at an intermediate temperature of 71℃. In the economic analysis

when cooling demand is considered

the system has the lowest total life-cycle cost over the 50—120℃ temperature range

and its daily operating cost is reduced by 73.9%

57.4%

and 80% compared to electric boilers

coal-fired boilers

and gas-fired boilers

respectively. In terms of carbon emissions

the system's emissions are significantly lower than those of electric boilers and coal-fired boilers. When the heating temperature is 60℃

its carbon emissions are only 24% of those of electric boilers; in most scenarios

it also outperforms gas boiler schemes. In summary

based on economic and environmental benefit assessments

heat pumps are the most advantageous solution in scenarios where both cooling and heating demands coexist.

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