{"title":"Carnot battery energy storage system integrated with liquid hydrogen cold energy: Thermodynamics, economic analysis and optimization","authors":"Huilin Zhang , Jianfeng Tang , Meng Qi , Tianbiao He","doi":"10.1016/j.enconman.2024.119400","DOIUrl":null,"url":null,"abstract":"<div><div>Carnot battery systems provide a high-energy–density storage solution that is not geographically constrained, converting and storing electricity in thermal form. However, the integration of Carnot batteries with cryogenic energy storage, specifically the utilization of liquid hydrogen cold energy, is an underexplored area. A pioneering design is presented in this study where a Carnot battery system is integrated with a liquid hydrogen cold energy utilization system. Additionally, it captures the waste heat from fuel cells to achieve combined generation of cold, heat, and power. The study includes steady-state modeling, sensitivity analysis of key components, and optimization using a particle swarm optimization algorithm aimed at maximizing power-to-power efficiency. The optimized system achieves a power-to-power conversion efficiency of 1.59, an energy efficiency of 1.02, an exergy efficiency of 0.18, and an Levelized Cost of Storage of 0.1516 USD/kWh. These findings represent a significant advance in energy storage technology, offering a new direction for integrating liquid hydrogen cold energy in energy storage systems and peak power applications.</div></div>","PeriodicalId":11664,"journal":{"name":"Energy Conversion and Management","volume":"325 ","pages":"Article 119400"},"PeriodicalIF":9.9000,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Energy Conversion and Management","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0196890424013414","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
Abstract
Carnot battery systems provide a high-energy–density storage solution that is not geographically constrained, converting and storing electricity in thermal form. However, the integration of Carnot batteries with cryogenic energy storage, specifically the utilization of liquid hydrogen cold energy, is an underexplored area. A pioneering design is presented in this study where a Carnot battery system is integrated with a liquid hydrogen cold energy utilization system. Additionally, it captures the waste heat from fuel cells to achieve combined generation of cold, heat, and power. The study includes steady-state modeling, sensitivity analysis of key components, and optimization using a particle swarm optimization algorithm aimed at maximizing power-to-power efficiency. The optimized system achieves a power-to-power conversion efficiency of 1.59, an energy efficiency of 1.02, an exergy efficiency of 0.18, and an Levelized Cost of Storage of 0.1516 USD/kWh. These findings represent a significant advance in energy storage technology, offering a new direction for integrating liquid hydrogen cold energy in energy storage systems and peak power applications.
期刊介绍:
The journal Energy Conversion and Management provides a forum for publishing original contributions and comprehensive technical review articles of interdisciplinary and original research on all important energy topics.
The topics considered include energy generation, utilization, conversion, storage, transmission, conservation, management and sustainability. These topics typically involve various types of energy such as mechanical, thermal, nuclear, chemical, electromagnetic, magnetic and electric. These energy types cover all known energy resources, including renewable resources (e.g., solar, bio, hydro, wind, geothermal and ocean energy), fossil fuels and nuclear resources.