Zhengyang Zhu, Xiaoshan Li, Fan Wu, Cong Luo, Liqi Zhang
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引用次数: 0
Abstract
Phase change material (PCM) cooling technology, characterised by a simple system, low cost, and low energy consumption, is regarded as a promising approach for battery thermal management systems (BTMS). However, the application of the conventional single-peak PCMs has been limited due to the narrow melting temperature range and poor adaptability to variable ambient conditions. To address this limitation, this study proposes a strategy to improve the adaptability of BTMS by using binary double-peak phase change materials with a wide transformation temperature range. The thermal storage characteristics of double-peak PCMs were systematically evaluated. Results show that the first endothermic peak originates from the melting of the eutectic structure, whereas the second corresponds to the melting of the remaining component. An enthalpy prediction model was established, achieving a prediction error of less than 5 % across three representative series. Thermal simulations demonstrated that double-peak PCMs offers improved adaptability to varying thermal generation rates and ambient temperatures. Compared to conventional single-peak PCMs, double-peak PCMs more effectively regulated battery temperature, maintaining it below 60 °C even under extreme ambient conditions (50 °C). These findings indicate that the proposed strategy enhances BTMS adaptability and has strong potential for practical application.
期刊介绍:
Applied Thermal Engineering disseminates novel research related to the design, development and demonstration of components, devices, equipment, technologies and systems involving thermal processes for the production, storage, utilization and conservation of energy, with a focus on engineering application.
The journal publishes high-quality and high-impact Original Research Articles, Review Articles, Short Communications and Letters to the Editor on cutting-edge innovations in research, and recent advances or issues of interest to the thermal engineering community.