eprintid: 10174009
rev_number: 11
eprint_status: archive
userid: 699
dir: disk0/10/17/40/09
datestamp: 2023-07-27 10:11:14
lastmod: 2024-04-06 06:10:08
status_changed: 2023-07-27 10:11:14
type: article
metadata_visibility: show
sword_depositor: 699
creators_name: Zhang, Q
creators_name: Shan, S
creators_name: Zhou, Z
creators_name: Luo, KH
title: A new WSGG radiation model of CO/CO₂ mixed gas for solar-driven coal/biomass fuel gasification
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F45
keywords: Solar, Gasification, Radiation, CO, WSGG model
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: Gasification driven by solar energy with CO2 is an ideal way of low-carbon resource utilization. However, there is a lack of research on the radiation heat transfer process which is important in gasification simulation. In this study, we developed a new the weighted-sum-of-gray-gases (WSGG) model to calculate the radiation heat transfer properties of CO and CO2 mixtures in solar-driven coal/biomass fuel gasification. Benchmarked against the statistical narrow-band model (SNB) of the EM2C laboratory, the WSGG model is suitable for the temperature range of 400–2500 K and the path length range of 0.001–60 m. This study also explored the effect of the CO/CO2 molar ratio on the overall emissivity of the mixture. Furthermore, the model introduces a pressure term into the emissivity calculation process and broadens the pressure range (1 bar, 5 bar, 45 bar). For the first time, the WSGG model is applied to the case where the H/C element ratio is 0, and the fluctuating temperature distribution case (1000 – 2000 K) is analyzed, which is suitable for coal/biomass fuel gasification. In addition, this study calculated the one-dimensional radiation transfer equation. The results show that the average radiation source term difference between the new WSGG and the benchmark SNB model is within 5 % in common solar gasification engineering conditions (5 bar, 5 m). Meanwhile, this study also clarified the effect of pressure on the radiation heat transfer with different temperatures.
date: 2023-08-15
date_type: published
publisher: ELSEVIER SCI LTD
official_url: https://doi.org/10.1016/j.fuel.2023.128241
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2017358
doi: 10.1016/j.fuel.2023.128241
lyricists_name: Luo, Kai
lyricists_id: KLUOX54
actors_name: Luo, Kai
actors_id: KLUOX54
actors_role: owner
funding_acknowledgements: 2018BCE01004 [Science and Technology Department of Ningxia Province]; 52206175 [National Natural Science Foundation of China]; 2021M702793 [China Postdoctoral Science Foundation]; 202106320152 [China Scholarship Council]; 2022035 [Academic Rising Star Program]; [Qingshan Overseas Exchange Scholarship]; EP/X035875/1 [UK Engineering and Physical Sciences Research Council]
full_text_status: public
publication: Fuel
volume: 346
article_number: 128241
pages: 15
issn: 0016-2361
citation:        Zhang, Q;    Shan, S;    Zhou, Z;    Luo, KH;      (2023)    A new WSGG radiation model of CO/CO₂ mixed gas for solar-driven coal/biomass fuel gasification.                   Fuel , 346     , Article 128241.  10.1016/j.fuel.2023.128241 <https://doi.org/10.1016/j.fuel.2023.128241>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10174009/1/Luo%202023%20Fuel%20WGSS%20accepted.pdf