Modeling and performance analysis of a new integrated solid oxide fuel cell and photovoltaic-thermal energy supply system by heat current method

IF 3.5 3区 工程技术 Q3 ENERGY & FUELS Energy Science & Engineering Pub Date : 2024-07-31 DOI:10.1002/ese3.1842
Xingce Wang, Junhong Hao, Xiaolong Feng, Tong Hao, Jian Sun, Xiaoze Du, Kaicheng Liu, Lu Jin
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Abstract

Efficient and reliable utilization of renewable energy at the user's end is the key to achieving a low-carbon life. This paper proposed a new distributed energy system around the comprehensive utilization of solar energy by integrating solid oxide fuel cell (SOFC), energy storage equipment, photovoltaic thermal (PVT) collector, and heat pump. By integrating the use of SOFC and PVT, we can further minimize reliance on fossil fuels, while employing the coupling of PVT and heat pump effectively mitigates the inherent challenges of solar energy's variability and intermittency, all while enhancing overall system efficiency. On this basis, we apply the heat current method to construct a cross-scale heat current model of the components and the system by considering the energy transfer, conversion, and storage characteristics of the system. By employing this model, we simulate the system's operation throughout an entire typical day, assess the COP enhancement of the PVT-coupled heat pump system, analyze the influence of diverse operating conditions on daily system performance, and evaluate the economy of the energy storage devices in the system.

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利用热流法对新型集成固体氧化物燃料电池和光伏-热能供应系统进行建模和性能分析
在用户端高效、可靠地利用可再生能源是实现低碳生活的关键。本文围绕太阳能的综合利用,提出了一种集固体氧化物燃料电池(SOFC)、储能设备、光伏集热器和热泵于一体的新型分布式能源系统。通过整合使用 SOFC 和 PVT,我们可以进一步减少对化石燃料的依赖,而 PVT 和热泵的耦合使用则可以有效缓解太阳能的多变性和间歇性所带来的固有挑战,同时提高整个系统的效率。在此基础上,我们应用热流法,通过考虑系统的能量传递、转换和存储特性,构建了组件和系统的跨尺度热流模型。通过使用该模型,我们模拟了系统在整个典型日的运行情况,评估了光伏耦合热泵系统的 COP 增强效果,分析了不同运行条件对系统日常性能的影响,并评估了系统中储能设备的经济性。
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来源期刊
Energy Science & Engineering
Energy Science & Engineering Engineering-Safety, Risk, Reliability and Quality
CiteScore
6.80
自引率
7.90%
发文量
298
审稿时长
11 weeks
期刊介绍: Energy Science & Engineering is a peer reviewed, open access journal dedicated to fundamental and applied research on energy and supply and use. Published as a co-operative venture of Wiley and SCI (Society of Chemical Industry), the journal offers authors a fast route to publication and the ability to share their research with the widest possible audience of scientists, professionals and other interested people across the globe. Securing an affordable and low carbon energy supply is a critical challenge of the 21st century and the solutions will require collaboration between scientists and engineers worldwide. This new journal aims to facilitate collaboration and spark innovation in energy research and development. Due to the importance of this topic to society and economic development the journal will give priority to quality research papers that are accessible to a broad readership and discuss sustainable, state-of-the art approaches to shaping the future of energy. This multidisciplinary journal will appeal to all researchers and professionals working in any area of energy in academia, industry or government, including scientists, engineers, consultants, policy-makers, government officials, economists and corporate organisations.
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