区域供热系统中氢基工业的余热利用-瑞典案例研究

IF 4.7 3区工程技术 Q2 ENERGY & FUELS

Energy Reports Pub Date : 2025-06-20 DOI:10.1016/j.egyr.2025.06.028

Sofia Rosén , Parvathy Sobha , Cecilia Wallmark

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引用次数: 0

摘要

本研究考察了现有和新兴氢基工业废热（WH）潜力的变化及其对区域供热（DH）系统的影响。Gällivare和哥德堡是两个人口、工业、能源需求、可再生潜力和气候不同的瑞典城市，它们在正在进行的氢基工业转型中的共同作用被评估。Gällivare和哥德堡分别使用能源系统优化模型、TIMES-City和内部城市模型进行建模，并对2050年进行评估。在Gällivare中，将新兴氢基工业的WH整合到DH中可以将供暖用电需求减少约20倍，从而为工业和运输脱碳腾出电力。在最大的WH情景中，DH在供热中的份额几乎达到100% %，与目前的水平相比，边际供暖成本降低了22% %。在哥德堡，从电解中回收的热量可以满足高达20% %的年供暖需求。一般来说，当可用WH较低时，首选电转热技术。然而，通过电解大规模制氢增加了电网的拥堵，导致投资热电联产工厂以满足当地的电力需求。

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Waste heat availability from hydrogen-based industries in district heating systems – A Swedish case study

This study examines the changes in waste heat (WH) potential from existing and emerging hydrogen-based industries and their impact on district heating (DH) systems. Gällivare and Gothenburg, two Swedish municipalities with differing demographics, industries, energy needs, renewable potential, and climates, are assessed for their common role in the ongoing hydrogen-based industrial transition. Gällivare and Gothenburg are modelled using energy system optimization models, TIMES-City and the in-house City model respectively, and are assessed for 2050. In Gällivare, integrating WH from emerging hydrogen-based industries into DH could reduce electricity demand for heating by around 20 times, thereby freeing up power for the decarbonization of industry and transport. In the maximum WH scenario, DH’s share in heat supply reaches almost 100 %, reducing marginal heating costs by 22 % compared to the current level. In Gothenburg, recovered heat from electrolysis could meet up to 20 % of the annual heating demand. In general, Power-to-Heat technologies are preferred when WH availability is low. However, large-scale hydrogen production via electrolysis increases electricity grid congestion, leading to investments in combined heat and power plants to meet the demand for electricity locally.

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来源期刊

Energy Reports Energy-General Energy

CiteScore

8.20

自引率

13.50%

发文量

2608

审稿时长

38 days

期刊介绍： Energy Reports is a new online multidisciplinary open access journal which focuses on publishing new research in the area of Energy with a rapid review and publication time. Energy Reports will be open to direct submissions and also to submissions from other Elsevier Energy journals, whose Editors have determined that Energy Reports would be a better fit.