期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 46, 期 5, 页码 4460-4471出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2020.10.160
关键词
MTPV system; Micro combustor; Multi-channel; Energy output
资金
- National Natural Science Foundation of China [U1737113]
- China Aerospace Science and Technology Corporation on Advanced Manufacturing Technology for Aerospace Industry [U1737113]
- Graduate Research and Innovation Foundation of Chongqing [CYB20019]
- Fundamental Research Funds for the Central Universities [2019CDYGYB022]
- Natural Science Foundation of Chongqing [cstc2019jcyj-msxmX0223]
This study compared the heat transfer performance and energy output of different channel shapes MCMC and CMC in the MTPV system, finding that the MCMC with diamond channels had a higher outer wall temperature at a certain flow rate. Additionally, the double-layer MCMC with counterflow structure achieved the highest total energy conversion efficiency under specific conditions.
Targeting at improving the energy output of the micro-thermophotovoltaic (MTPV) system, the heat transfer performance and energy output of the conventional micro combustor (CMC) and the multi-channel micro combustor (MCMC) with various channel shapes in the MTPV system are compared. The mean outer wall temperature of the MCMC with diamond channel is improved by 86.5 K than that of the CMC at the inlet hydrogen mass flow rate ((m)over dot(in,hydrogen)) of 1.64 x 10-6 kg/s. Furthermore, four arrangements of MCMC are compared in this work. The double-layer MCMC with layers counterflow exhibits the highest total energy conversion efficiency of 13.2% when the (m)over dot(in,hydrogen) is 8.10 x 10(-7) kg/s. The equivalence ratio (Phi) of premixed hydrogen/air plays a crucial role on the thermal performance of DMCMC-layer counter flow. The outer wall temperature and its uniformity becomes better as the equivalence ratio increases. The MPTV system with a DMCMC-layers counterflow can obtain an energy output of 19.3 W when the (m)over dot(in,hydrogen) is 1.64 x 10-6 kg/s and Phi is equal to 1. Namely, the multi-channel micro combustor has the potential to be a novel energy resource for the MTPV system. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据