Heat pump-Kalina cycle Carnot battery driven by extracted steam in coal-fired power station and its performance evaluation

doi:10.19666/j.rlfd.202411250

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Heat pump-Kalina cycle Carnot battery driven by extracted steam in coal-fired power station and its performance evaluation

更新时间：2025-11-03

- Heat pump-Kalina cycle Carnot battery driven by extracted steam in coal-fired power station and its performance evaluation
- Thermal Power Generation Issue 9, Pages: 46-53(2025)
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- DOI：10.19666/j.rlfd.202411250
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- Published：2025
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Heat pump-Kalina cycle Carnot battery driven by extracted steam in coal-fired power station and its performance evaluation[J]. Thermal power generation, 2025, (9): 46-53.
DOI：

Heat pump-Kalina cycle Carnot battery driven by extracted steam in coal-fired power station and its performance evaluation[J]. Thermal power generation, 2025, (9): 46-53. DOI： 10.19666/j.rlfd.202411250.

摘要

卡诺电池作为一种新兴的大规模储电技术，具有成本低、容量大、不受地域限制等优点。针对放电循环效率较低抑制卡诺电池能效进一步提升的现状，结合热集成卡诺电池的热需求及Kalina循环较高的放电效率，提出了燃煤电站抽汽驱动的热泵-Kalina循环卡诺电池系统，建立了卡诺电池系统热力学模型，重点研究了储热温度、储热温差以及氨水质量分数对卡诺电池热力学性能的影响。结果表明：不同储热温差以及储热温度下，往返效率可介于44.8%～108.0%；随着氨水质量分数增大，往返效率会显著提高，但氨水质量分数超过90%，效率会急剧下降，Kalina循环接近于一元循环。因此在设计基于Kalina循环的卡诺电池时，氨水质量分数应控制在80%～90%。

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