储能科学与技术 ›› 2020, Vol. 9 ›› Issue (3): 720-724.doi: 10.19799/j.cnki.2095-4239.2019.0285

• 未来科学城储能技术专刊 • 上一篇    下一篇

潮汐式地热能储能供热调峰系统效益分析

郑新, 孙雨潇, 张迪, 周杲昕, 李晶, 王绪伟, 张小铮, 张金龙   

  1. 国家电投集团科学技术研究院有限公司,北京 102209
  • 收稿日期:2019-12-23 修回日期:2019-12-30 出版日期:2020-05-05 发布日期:2020-05-11
  • 作者简介:联系人:郑新(1990—),男,硕士,工程师、经济师,研究方向为储能及热泵技术应用,E-mail:zhengxin0210e163.com

Benefit study of peak shaving energy systems using geothermal energy with storage in office buildings

ZHENG Xin, SUN Yuxiao, ZHANG Di, ZHOU Gaoxin, LI Jing, WANG Xuwei, ZHANG Xiaozheng, ZHANG Jinlong   

  1. State Power Investment Corporation Central Research Institute, Beijing 102209, China
  • Received:2019-12-23 Revised:2019-12-30 Online:2020-05-05 Published:2020-05-11

摘要:

地热能源具有绿色低碳的能源属性,有着较好的市场前景。潮汐式地热能技术是将地热技术与储热技术结合起来,具有提升单井回灌量、扩大单井供热能力、降低运行成本等技术优势。本工作以河北省某地办公楼为基础,针对地热单井开采量降低、“以灌定采”限制开采量而导致的地热单井供热能力下降的供热需求,提出了地热+天然气调峰、潮汐式地热能两种地热能利用系统方案。通过编写数学模型、优化算法等数据处理方法,基于净现值经济评价指标,最终确定了合理的潮汐式地热调峰系统方案。较地热+天然气调峰方案,潮汐式方案初投资降低42%、运行成本降低55%、净现值为14392.10元,经济效益明显,具有较好的推广前景。

关键词: 地热能, 储能, 回灌, 效益分析

Abstract:

Geothermal regions have excellent application prospects as low-carbon, green energy sources. Geothermal energy-storage systems combine geothermal- and thermal-storage technologies, thereby improving the single-well heating ability, expanding the recharge quantity of single wells, and reducing the running costs. To meet the heating demands of office buildings in Hebei Province (Northern China), this study proposes a peak shaving energy system based on geothermal energy. The economics of the system are evaluated in terms of several economic indicators such as initial investment, operating cost, and net present value. Besides conserving energy, the geothermal energy system with thermal storage reduced the initial investment and operating costs by 42% and 55% from those of the geothermal system without the storage. The net annual value of the proposed system was ¥14392.10.

Key words: geothermal energy, energy storage, recharge quantity, benefit study

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