发布时间：2025-04-30

论文名称：Optimal design methodology of metal hydride reactors for thermochemical heat storage

发表刊物：Energy Conversion and Management

摘要：Metal hydride (MH) is an attractive alternative for thermochemical heat storage. This study proposes an optimal
design methodology for MH heat storage reactors (MHHSRs), integrating the optimal design principle (ODP) and
a new design procedure. Based on the optimal design methodology, the design of the powder bed with helical
heat transfer fluid (HTF) tube is conducted via numerical simulation. A mathematical model is established for
the thermal coupling between the powder bed and the HTF tube. The gravimetric exergy-output rate (GEOR) is
adopted to evaluate the overall discharging performance. First, the helical HTF tube is optimized and improved
based on the ODP, which increase the GEOR from 198.4 to 255.4Wkg−1. The optimal helical diameter is 30mm
and the optimal improved structure is determined as a U-shaped double helical tube. Then, the structural improvement
of the reaction bed is supplemented, achieving reductions of material and energy consumption by
12.2% and 11%, respectively. The final design of the powder bed with helical tube based on optimal design
methodology improves the GEOR from 198.4 to 306.1Wkg−1, which constitutes a significant increase of 54.3%.
This optimal design methodology is validated and efficiently guides the design of advanced MHHSRs.

合写作者：Penghui Feng, Yang Liu, Iqra Ayub, Zhen Wu, Fusheng Yang, Zaoxiao Zhang

卷号：174

页面范围：239-247

是否译文：否

发表时间：2018-08-11