Dynamic relationships between real-time fuel moisture content and combustion-emission-performance characteristics of wood pellets in a top-lit updraft cookstove

Fuel moisture content (FMC) has an essential impact on the performance of biomass combustion. FMC typically changes during the burning process; therefore, considering only the initial FMC is inadequate for understanding clean combustion and emission control. An on-line FMC monitoring method was empl...

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Main Authors: Nan Zhao, Bowen Li, Riaz Ahmad, Fan Ding, Yuguang Zhou, Gang Li, Ali Mohammed Ibrahim Zayan, Renjie Dong
Format: Article
Language:English
Published: Elsevier 2021-12-01
Series:Case Studies in Thermal Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214157X2100647X
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author Nan Zhao
Bowen Li
Riaz Ahmad
Fan Ding
Yuguang Zhou
Gang Li
Ali Mohammed Ibrahim Zayan
Renjie Dong
author_facet Nan Zhao
Bowen Li
Riaz Ahmad
Fan Ding
Yuguang Zhou
Gang Li
Ali Mohammed Ibrahim Zayan
Renjie Dong
author_sort Nan Zhao
collection DOAJ
description Fuel moisture content (FMC) has an essential impact on the performance of biomass combustion. FMC typically changes during the burning process; therefore, considering only the initial FMC is inadequate for understanding clean combustion and emission control. An on-line FMC monitoring method was employed by measuring relative humidity of emissions to determine the real-time effect of FMC on modified combustion efficiency (MCE) and emission factors (EFs) of pollutants from a typical top-lit updraft cookstove fueled with wood pellets. The results obtained from a complete 16-h combustion sequence showed an overall decreasing trend of FMC, consequently increasing combustion temperature and MCE. Flaming combustion appeared in a high-power phase where the EFs of carbon monoxide (CO) and fine particulate matter (PM2.5) decreased while real-time FMC decreased from 3.5% to 2.1% (wet basis). Smoldering combustion was generally dominant in a low-power phase where EFs of CO and nitric oxide (NO) decreased, while PM2.5 increased with real-time FMC decreasing from 6.3% to 4.9% (wet basis). This paper can provide meaningful information for modeling biomass burning, quantifying pollutant emissions and understanding related impacts on the residential sector.
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spelling doaj.art-c24ba33a721b4d02b17db95d684a59a72022-12-21T16:58:38ZengElsevierCase Studies in Thermal Engineering2214-157X2021-12-0128101484Dynamic relationships between real-time fuel moisture content and combustion-emission-performance characteristics of wood pellets in a top-lit updraft cookstoveNan Zhao0Bowen Li1Riaz Ahmad2Fan Ding3Yuguang Zhou4Gang Li5Ali Mohammed Ibrahim Zayan6Renjie Dong7Bioenergy and Environment Science & Technology Laboratory, College of Engineering, China Agricultural University, Beijing, 100083, China; Key Laboratory of Clean Production and Utilization of Renewable Energy, Ministry of Agriculture and Rural Affairs, China, Beijing, 100083, China; National Center for International Research of BioEnergy Science and Technology, Ministry of Science and Technology, Beijing, 100083, ChinaBioenergy and Environment Science & Technology Laboratory, College of Engineering, China Agricultural University, Beijing, 100083, China; Key Laboratory of Clean Production and Utilization of Renewable Energy, Ministry of Agriculture and Rural Affairs, China, Beijing, 100083, China; National Center for International Research of BioEnergy Science and Technology, Ministry of Science and Technology, Beijing, 100083, ChinaBioenergy and Environment Science & Technology Laboratory, College of Engineering, China Agricultural University, Beijing, 100083, China; Key Laboratory of Clean Production and Utilization of Renewable Energy, Ministry of Agriculture and Rural Affairs, China, Beijing, 100083, China; National Center for International Research of BioEnergy Science and Technology, Ministry of Science and Technology, Beijing, 100083, ChinaBioenergy and Environment Science & Technology Laboratory, College of Engineering, China Agricultural University, Beijing, 100083, China; Key Laboratory of Clean Production and Utilization of Renewable Energy, Ministry of Agriculture and Rural Affairs, China, Beijing, 100083, China; National Center for International Research of BioEnergy Science and Technology, Ministry of Science and Technology, Beijing, 100083, ChinaBioenergy and Environment Science & Technology Laboratory, College of Engineering, China Agricultural University, Beijing, 100083, China; Key Laboratory of Clean Production and Utilization of Renewable Energy, Ministry of Agriculture and Rural Affairs, China, Beijing, 100083, China; National Center for International Research of BioEnergy Science and Technology, Ministry of Science and Technology, Beijing, 100083, China; Corresponding author. Bioenergy and Environment Science & Technology Laboratory, College of Engineering, China Agricultural University, Beijing, 100083, China.School of Material Science and Mechanical Engineering, Beijing Technology and Business University, Beijing, 100048, China; Corresponding author.Department of Agricultural Engineering, Faculty of Agriculture, Omdurman Islamic University, Omdurman Province, Khartoum State, SudanKey Laboratory of Clean Production and Utilization of Renewable Energy, Ministry of Agriculture and Rural Affairs, China, Beijing, 100083, China; National Center for International Research of BioEnergy Science and Technology, Ministry of Science and Technology, Beijing, 100083, China; Yantai Institute, China Agricultural University, No. 2006 Binhai Zhonglu, Laishan District, Yantai, Shandong Province, 264670, ChinaFuel moisture content (FMC) has an essential impact on the performance of biomass combustion. FMC typically changes during the burning process; therefore, considering only the initial FMC is inadequate for understanding clean combustion and emission control. An on-line FMC monitoring method was employed by measuring relative humidity of emissions to determine the real-time effect of FMC on modified combustion efficiency (MCE) and emission factors (EFs) of pollutants from a typical top-lit updraft cookstove fueled with wood pellets. The results obtained from a complete 16-h combustion sequence showed an overall decreasing trend of FMC, consequently increasing combustion temperature and MCE. Flaming combustion appeared in a high-power phase where the EFs of carbon monoxide (CO) and fine particulate matter (PM2.5) decreased while real-time FMC decreased from 3.5% to 2.1% (wet basis). Smoldering combustion was generally dominant in a low-power phase where EFs of CO and nitric oxide (NO) decreased, while PM2.5 increased with real-time FMC decreasing from 6.3% to 4.9% (wet basis). This paper can provide meaningful information for modeling biomass burning, quantifying pollutant emissions and understanding related impacts on the residential sector.http://www.sciencedirect.com/science/article/pii/S2214157X2100647XBiomass combustionHousehold cookingReal-time monitoringFuel moisture contentEmission factorGaseous pollutant
spellingShingle Nan Zhao
Bowen Li
Riaz Ahmad
Fan Ding
Yuguang Zhou
Gang Li
Ali Mohammed Ibrahim Zayan
Renjie Dong
Dynamic relationships between real-time fuel moisture content and combustion-emission-performance characteristics of wood pellets in a top-lit updraft cookstove
Case Studies in Thermal Engineering
Biomass combustion
Household cooking
Real-time monitoring
Fuel moisture content
Emission factor
Gaseous pollutant
title Dynamic relationships between real-time fuel moisture content and combustion-emission-performance characteristics of wood pellets in a top-lit updraft cookstove
title_full Dynamic relationships between real-time fuel moisture content and combustion-emission-performance characteristics of wood pellets in a top-lit updraft cookstove
title_fullStr Dynamic relationships between real-time fuel moisture content and combustion-emission-performance characteristics of wood pellets in a top-lit updraft cookstove
title_full_unstemmed Dynamic relationships between real-time fuel moisture content and combustion-emission-performance characteristics of wood pellets in a top-lit updraft cookstove
title_short Dynamic relationships between real-time fuel moisture content and combustion-emission-performance characteristics of wood pellets in a top-lit updraft cookstove
title_sort dynamic relationships between real time fuel moisture content and combustion emission performance characteristics of wood pellets in a top lit updraft cookstove
topic Biomass combustion
Household cooking
Real-time monitoring
Fuel moisture content
Emission factor
Gaseous pollutant
url http://www.sciencedirect.com/science/article/pii/S2214157X2100647X
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